1
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Zhang C, Xu M, Ren M, Shi H, Liu G, Li J, Liu X, Zhang L, Gao D. Morphology of impact polypropylene copolymer extruded cast film revealed by confocal Raman imaging. SOFT MATTER 2024; 20:3923-3930. [PMID: 38661471 DOI: 10.1039/d4sm00156g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
An impact polypropylene copolymer (IPC), composed of polypropylene (PP) and ethylene-propylene copolymer (EPC), was synthesized through two-stage in-reactor polymerization. A systematic investigation of the crystalline structure, thermal behavior, morphology, and tensile properties of the IPC extruded cast film was conducted. Specifically, the morphology of EPC was obtained by confocal Raman imaging by depicting the spatial distribution of the Raman band located at 1064 cm-1. The EPC phase exhibits fibrous morphology with the long axis aligning along the machine direction (MD). A three-dimensional (3D) heterogeneous structure of the IPC cast film obtained by confocal Raman imaging confirms that the fibrous EPC phase is dispersed in a 3D framework of the PP matrix. The mesomorphic phase in the as-prepared cast film transforms to a stable α-form crystal after annealing at 130 °C, which improves the yield strength but decreases the elongation of the cast film. The WAXD and SAXS results indicate that there is no obvious orientation of the crystallites. Thus, the anisotropy of tensile properties in the MD and transverse directions is closely related to the anisotropic phase morphology at the micrometer scale. The results reveal that the mechanical performances of IPC films are determined by the crystalline structure of the PP matrix and the morphology.
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Affiliation(s)
- Chunbo Zhang
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
| | - Meng Xu
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
| | - Minqiao Ren
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
| | - Hongwei Shi
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
| | - Guoming Liu
- CAS Key Laboratory of Engineering Plastics, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Juan Li
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
| | - Xuanbo Liu
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
| | - Longgui Zhang
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
| | - Dali Gao
- SINOPEC (Beijing) Research Institute of Chemical Industry Co. Ltd, Beijing, 100013, China.
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2
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Wu T, Wang K, Chen X, Yang X, Xiang M, Fu Q. Practicing the concept of “structuring” processing in the manufacture of polymer films. Sci China Chem 2023. [DOI: 10.1007/s11426-022-1520-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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3
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Tomczak W, Gryta M, Kowalczyk K. The influence of storage time on the performance of polypropylene membranes applied for membrane distillation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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4
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Kochervinskii VV, Gradova MA, Gradov OV, Kirakosyan GA, Kiselev DA, Buzin MI, Lokshin BV, Korlyukov AA, Maltsev AA, Malyshkina IA. Influence of physical aging of ferroelectric vinylidene fluoride copolymer films on their structural and electrophysical characteristics. J Appl Polym Sci 2022. [DOI: 10.1002/app.53025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Valentin V. Kochervinskii
- Laboratory of polymer composite materials JSC Scientific Research Institute of Chemical Technology Moscow Russia
| | - Margaret A. Gradova
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences Moscow Russia
| | - Oleg V. Gradov
- N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences Moscow Russia
| | - Gayane A. Kirakosyan
- Laboratory of Coordination Chemistry of Alkali and Rare Metals N.S. Kurnakov Institute of General and Inorganic Chemistry RAS Moscow Russia
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry RAS Moscow Russia
| | - Dmitry A. Kiselev
- Department of Materials Science of Semiconductors and Dielectrics National University of Science and Technology MISIS Moscow Russia
| | - Mikhail I. Buzin
- Division of Macromolecular Compounds (Buzin), Division of Physical‐Chemical Research Methods (Lokshin, Korlyukov) A.N. Nesmeyanov Institute of Organoelement Compounds RAS Moscow Russia
| | - Boris V. Lokshin
- Division of Macromolecular Compounds (Buzin), Division of Physical‐Chemical Research Methods (Lokshin, Korlyukov) A.N. Nesmeyanov Institute of Organoelement Compounds RAS Moscow Russia
| | - Alexander A. Korlyukov
- Division of Macromolecular Compounds (Buzin), Division of Physical‐Chemical Research Methods (Lokshin, Korlyukov) A.N. Nesmeyanov Institute of Organoelement Compounds RAS Moscow Russia
| | - Alexander A. Maltsev
- Laboratory of Electrophysics and Radiophotonics of Composite Materials and Nanostructures N.M. Emanuel Institute of Biochemical Physics RAS Moscow Russia
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5
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Yang F, Liu C, Yang F, Xiang M, Wu T, Fu Q. Effects of diluent content on the crystallization behavior and morphology of polyethylene membrane fabricated via thermally induced phase separation process. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Membranes for extracorporeal membrane oxygenator (ECMO): history, preparation, modification and mass transfer. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.05.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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7
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Xu R, Yin L, Chen J, Xie J, Yin Z, Lei C. The effect of melt drawing ratio on the crystal structural change and performance of polyketone extrusion cast film. JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1002/pol.20220153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ruijie Xu
- School of Materials and Energy, Guangdong University of Technology Guangzhou PR China
| | - Liangdong Yin
- School of Materials and Energy, Guangdong University of Technology Guangzhou PR China
| | - Jiaqiang Chen
- School of Materials and Energy, Guangdong University of Technology Guangzhou PR China
| | - Jiayi Xie
- School of Materials and Energy, Guangdong University of Technology Guangzhou PR China
| | - Zefeng Yin
- School of Materials and Energy, Guangdong University of Technology Guangzhou PR China
| | - Caihong Lei
- School of Materials and Energy, Guangdong University of Technology Guangzhou PR China
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8
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Xie JY, Wu YS, Yin ZF, Yin LD, Xu RJ, Lei CH. Annealing of Oriented PP/PE Double-layer Film within the Melting Range of PE: the Role of Partial Melting and Self-nucleation. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2681-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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Liang G, Fang W, Li J, Guo S. Micropore formation and crystalline evolution during biaxial stretching process of iPP film constructed of ordered and continuous β-transcrystallinity. J Memb Sci 2021. [DOI: 10.1016/j.memsci.2021.119558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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10
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Luo D, Sun X, Gao J, Xie G, Qin S. Structure Regulation of Polypropylene/Poly(ethylene- co-vinyl alcohol) Hollow Fiber Membranes with a Bimodal Microporous Structure Prepared by Melt-Spinning and Stretching: The Role of Melt-Draw Ratio. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c01731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dajun Luo
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550003, China
- National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014, China
| | - Xin Sun
- Department of Polymer Material and Engineering, College of Materials and Metallurgy, Guizhou University, Guiyang 550025, China
| | - Jin Gao
- School of Materials and Energy Engineering, Guizhou Institute of Technology, Guiyang 550003, China
| | - Gaoyi Xie
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang 550003, China
| | - Shuhao Qin
- National Engineering Research Center for Compounding and Modification of Polymeric Materials, Guiyang 550014, China
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11
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Yang F, Yang F, Xiang M, Wu T. Preparation of highly oriented β polypropylene and its pore formation mechanism during stretching. POLYMER CRYSTALLIZATION 2021. [DOI: 10.1002/pcr2.10183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fan Yang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering Sichuan University Chengdu China
| | - Feng Yang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering Sichuan University Chengdu China
| | - Ming Xiang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering Sichuan University Chengdu China
| | - Tong Wu
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering Sichuan University Chengdu China
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12
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Xu L, Jiang Y, Wang D, Yin B. The cavitation development of poly(4‐methyl‐1‐pentene) casting films studied by
in situ
small angle X‐ray scattering. J Appl Polym Sci 2021. [DOI: 10.1002/app.50209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Liyang Xu
- Liangjiang International College Chongqing University of Technology Chongqing China
| | - Yuanping Jiang
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, School of Chemistry, Biology and Materials Science East China University of Technology Nanchang China
| | - Dezheng Wang
- Chongqing Institute of Engineering Chongqing China
| | - Bo Yin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
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13
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Xu G, Ding L, Wu T, Yang F, Xiang M. Effect of molecular weight and isotacticity distribution on hard elastic polypropylene cast films and membranes. POLYM INT 2021. [DOI: 10.1002/pi.6117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guan Xu
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Lei Ding
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Tong Wu
- College of Polymer Science and Engineering Sichuan University Chengdu China
| | - Feng Yang
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Ming Xiang
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
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14
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Phulkerd P, Yamazaki A, Iwasaki S, Yamaguchi M. Effect of molecular weight on molecular orientation and morphology of polypropylene sheets containing a β‐nucleating agent. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25580] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Panitha Phulkerd
- School of Materials Science, Japan Advanced Institute of Science and Technology Nomi Ishikawa Japan
| | - Atsuro Yamazaki
- School of Materials Science, Japan Advanced Institute of Science and Technology Nomi Ishikawa Japan
| | - Shohei Iwasaki
- Performance Chemicals Division New Japan Chemical Co., Ltd. Kyoto Japan
| | - Masayuki Yamaguchi
- School of Materials Science, Japan Advanced Institute of Science and Technology Nomi Ishikawa Japan
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15
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Castejón P, Antunes M, Arencón D. Development of Inorganic Particle-Filled Polypropylene/High Density Polyethylene Membranes via Multilayer Co-Extrusion and Stretching. Polymers (Basel) 2021; 13:polym13020306. [PMID: 33478149 PMCID: PMC7835944 DOI: 10.3390/polym13020306] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/11/2021] [Accepted: 01/13/2021] [Indexed: 11/21/2022] Open
Abstract
This work is made to ascertain the effects of mineral fillers, namely calcium carbonate and talc, on the morphology and properties of multilayer polypropylene (PP)/high-density polyethylene (HDPE) porous membranes. Multilayer membranes were prepared using the three-stage Melt-Extrusion, Annealing and Uniaxial Stretching (MEAUS) process. The orientation of PP’s crystalline phase was affected by both the flow-induced crystallization and the heterogeneous nucleation promoted by the fillers. A synergistic effect was observed in the filled samples due to the generation of pores after the stretching-induced lamellae separation and the debonding of mineral fillers from the polymeric matrix. The fillers increased the porous surface, leading to an increase of permeance to air, being this effect more marked at higher filler contents. Talc showed a higher efficiency to create porous surfaces when compared to calcium carbonate. The thermal stability of the membranes increased with filler addition, as well as their stiffness and strength.
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16
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The structure changes of polypropylene precursor film with different die draw ratio during annealing. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122958] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Robust propylene-ethylene copolymer/polypropylene films: Extensional stress-induced orientation realized at low temperature processing. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122848] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Ding L, Zhang D, Wu T, Yang F, Lan F, Cao Y, Xiang M. The unusual delamination phenomenon of three kinds of lithium‐ion battery separators. POLYM INT 2020. [DOI: 10.1002/pi.6122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lei Ding
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Daoxin Zhang
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Tong Wu
- College of Polymer Science and Engineering Sichuan University Chengdu China
| | - Feng Yang
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Fang Lan
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Ya Cao
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
| | - Ming Xiang
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu China
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19
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Zhang D, Ding L, Yang F, Lan F, Cao Y, Xiang M. Effect of annealing on the microvoid formation and evolution during biaxial stretching of β nucleated isotactic polypropylene. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1758136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Daoxin Zhang
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Lei Ding
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Feng Yang
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Fang Lan
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Ya Cao
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
| | - Ming Xiang
- State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, China
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20
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Hu T, Hua WQ, Zhong GJ, Wang YD, Gao YT, Hong CX, Li ZM, Bian FG, Xiao TQ. Nondestructive and Quantitative Characterization of Bulk Injection-Molded Polylactide Using SAXS Microtomography. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tao Hu
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
- Research Center for Shanghai Synchrotron Radiation Facility/Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
- University of Chinese Academy of Sciences, Beijing 10084, China
| | - Wen-Qiang Hua
- Research Center for Shanghai Synchrotron Radiation Facility/Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Gan-Ji Zhong
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Yu-Dan Wang
- Research Center for Shanghai Synchrotron Radiation Facility/Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Yan-Tao Gao
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Chun-Xia Hong
- Research Center for Shanghai Synchrotron Radiation Facility/Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, People’s Republic of China
| | - Feng-Gang Bian
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
- Research Center for Shanghai Synchrotron Radiation Facility/Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
- University of Chinese Academy of Sciences, Beijing 10084, China
| | - Ti-Qiao Xiao
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
- Research Center for Shanghai Synchrotron Radiation Facility/Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, China
- University of Chinese Academy of Sciences, Beijing 10084, China
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21
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Tan LJ, Zhu W, Zhou K. Development of organically modified montmorillonite/polypropylene composite powders for selective laser sintering. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.05.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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22
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Yamazaki S, Tokita M. A Correlation between Thermal Diffusivity and Long Period in Thermotropic Liquid Crystalline Polyesters. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b01926] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shohei Yamazaki
- Department of Chemical Science and Technology, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masatoshi Tokita
- Department of Chemical Science and Technology, Tokyo Institute of Technology, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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23
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Lin Y, Li X, Chen X, An M, Zhang Q, Wang D, Chen W, Sun L, Yin P, Meng L, Li L. Structural evolution of hard-elastic polyethylene cast film in temperature-strain space: An in-situ SAXS and WAXS study. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121930] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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24
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Wu T, Wang K, Xiang M, Fu Q. Progresses in Manufacturing Techniques of Lithium‐Ion Battery Separators in China. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900280] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tong Wu
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University Chengdu Sichuan 610065 China
| | - Ke Wang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University Chengdu Sichuan 610065 China
| | - Ming Xiang
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University Chengdu Sichuan 610065 China
| | - Qiang Fu
- State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University Chengdu Sichuan 610065 China
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25
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Morales-Román RM, Guillot-Ferriols M, Roig-Pérez L, Lanceros-Mendez S, Gallego-Ferrer G, Gómez Ribelles JL. Freeze-extraction microporous electroactive supports for cell culture. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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26
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Liu ZY, Wu XT, Yan J, Yang W, Yang MB. Effect of Annealing Temperature on PP Microporous Membranes Obtained by a Melt-Extrusion-Stretching Method. INT POLYM PROC 2019. [DOI: 10.3139/217.3774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Isotactic polypropylene (iPP) precursor film with highly oriented lamellar structure was produced through a melt extrusion-annealing-uniaxial stretching (MAUS) process. The precursor films were annealed at various temperatures and the structure evolution of precursor films during various annealing temperatures and the pore formation of the annealed film during stretching were investigated. During annealing, recrystallized lamellar structure was formed to obtain “core-shell sandwich” structure. The thickness of newly formed lamellae increased with annealing temperature, which improved the ability of slipping resistance of the original lamellar structure during stretching. As the annealing temperature of precursor film increased, the micropore shape and diameter of the final membranes became more uniform. The porosity of the microporous membranes increased with increasing annealing temperature.
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Affiliation(s)
- Z.-Y. Liu
- College of Polymer Science and Engineering , Sichuan University, Chengdu, Sichuan , PRC
| | - X.-T. Wu
- College of Polymer Science and Engineering , Sichuan University, Chengdu, Sichuan , PRC
| | - J. Yan
- College of Polymer Science and Engineering , Sichuan University, Chengdu, Sichuan , PRC
| | - W. Yang
- College of Polymer Science and Engineering , Sichuan University, Chengdu, Sichuan , PRC
- State Key Laboratory of Polymer Materials Engineering , Sichuan University, Chengdu, Sichuan , PRC
| | - M.-B. Yang
- College of Polymer Science and Engineering , Sichuan University, Chengdu, Sichuan , PRC
- State Key Laboratory of Polymer Materials Engineering , Sichuan University, Chengdu, Sichuan , PRC
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27
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Liu Q, Liu S, Xia L, Hu P, Lv Y, Liu J, Chen Z, Huang Y, Li G. Effect of annealing-induced microstructure on the photo-oxidative degradation behavior of isotactic polypropylene. Polym Degrad Stab 2019. [DOI: 10.1016/j.polymdegradstab.2019.02.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Ryu J, Lee H, Kim H, Sohn D. Lamellar Thickness of Poly(ethylene oxide) Film Crystallized from the Gel State. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01232] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jungju Ryu
- Neutron Science Center, Korea Atomic Energy Research Institute, Daejeon 34057, Korea
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Korea
| | - Hoik Lee
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Korea
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering (IFES), Interdisciplinary Cluster for Cutting Edge Research (ICCER), Shinshu University, Nagano 386-8567, Japan
| | - Hyosin Kim
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Korea
| | - Daewon Sohn
- Department of Chemistry and Research Institute for Convergence of Basic Science, Hanyang University, Seoul 04763, Korea
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29
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Chang B, Schneider K, Xiang F, Vogel R, Roth S, Heinrich G. Critical Strains for Lamellae Deformation and Cavitation during Uniaxial Stretching of Annealed Isotactic Polypropylene. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00642] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Baobao Chang
- Leibniz-Institut
für Polymerforschung Dresden, D-01069 Dresden, Germany
| | - Konrad Schneider
- Leibniz-Institut
für Polymerforschung Dresden, D-01069 Dresden, Germany
| | - Fei Xiang
- Leibniz-Institut
für Polymerforschung Dresden, D-01069 Dresden, Germany
| | - Roland Vogel
- Leibniz-Institut
für Polymerforschung Dresden, D-01069 Dresden, Germany
| | - Stephan Roth
- Photon Science
at DESY, D-22607 Hamburg, Germany
| | - Gert Heinrich
- Leibniz-Institut
für Polymerforschung Dresden, D-01069 Dresden, Germany
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30
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Castejón P, Arencón D, Antunes M, Realinho V, Velasco JI, Martínez AB. Porous Membranes Based on Polypropylene-Ethylene Copolymers. Influence of Temperature on Extrusion, Annealing and Uniaxial Strain Stages. Polymers (Basel) 2018; 10:E854. [PMID: 30960779 PMCID: PMC6403625 DOI: 10.3390/polym10080854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 07/28/2018] [Accepted: 07/30/2018] [Indexed: 12/03/2022] Open
Abstract
In this study, block and random copolymers of polypropylene⁻ethylene are selected to prepare porous membranes through the melt extrusion-annealing-uniaxial stretching technique (MEAUS), at a constant draw ratio. In some cases, these copolymers were blended with a homopolymer grade. The variation of temperature in the stages of extrusion, annealing and uniaxial strain was analysed. Several characterisation techniques were employed to study this influence. The crystalline orientation was analysed by polarised infrared spectroscopy (FT-IR), and crystalline features were studied by differential scanning calorimetry (DSC). The thermal stability of the membranes was checked by thermogravimetric analysis (TGA). Tensile tests were performed to ascertain the stiffness and ductility of the produced samples. The results were correlated with the porous morphology, global porosity, and permeability to air. A close relationship was found between crystalline characteristics, porous morphology and the trends registered. An improved pore distribution along the membrane surface was found when copolymers were employed.
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Affiliation(s)
- Pilar Castejón
- Centre Català del Plàstic, Universitat Politècnica de Catalunya., C/Colom 114, 08222 Terrassa, Spain.
| | - David Arencón
- Centre Català del Plàstic, Universitat Politècnica de Catalunya., C/Colom 114, 08222 Terrassa, Spain.
| | - Marcelo Antunes
- Centre Català del Plàstic, Universitat Politècnica de Catalunya., C/Colom 114, 08222 Terrassa, Spain.
| | - Vera Realinho
- Centre Català del Plàstic, Universitat Politècnica de Catalunya., C/Colom 114, 08222 Terrassa, Spain.
| | - José Ignacio Velasco
- Centre Català del Plàstic, Universitat Politècnica de Catalunya., C/Colom 114, 08222 Terrassa, Spain.
| | - Antonio B Martínez
- Centre Català del Plàstic, Universitat Politècnica de Catalunya., C/Colom 114, 08222 Terrassa, Spain.
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31
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Lei C, Xu R, Tian Z, Huang H, Xie J, Zhu X. Stretching-Induced Uniform Micropores Formation: An in Situ SAXS/WAXS Study. Macromolecules 2018. [DOI: 10.1021/acs.macromol.7b02335] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Caihong Lei
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Ruijie Xu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Ziqin Tian
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Henghui Huang
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Jiayi Xie
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, P. R. China
| | - Xingqi Zhu
- Beijing Application Lab, Bruker China, Beijing 100192, P. R. China
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32
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Xu L, Wu G, Yin B, Yang MB. Influence of annealing treatment on the structure and properties of poly(4-methyl-1-pentene)-based films and membranes. J Appl Polym Sci 2018. [DOI: 10.1002/app.46491] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Liyang Xu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
| | - Gaogao Wu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
| | - Bo Yin
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
| | - Ming-bo Yang
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering; Sichuan University; Chengdu Sichuan People's Republic of China
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33
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Polypropylene-Based Porous Membranes: Influence of Polymer Composition, Extrusion Draw Ratio and Uniaxial Strain. Polymers (Basel) 2017; 10:polym10010033. [PMID: 30966067 PMCID: PMC6414961 DOI: 10.3390/polym10010033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 12/21/2017] [Accepted: 12/21/2017] [Indexed: 12/02/2022] Open
Abstract
Several commercial grades of homo-polymer and its blends were selected to prepare microporous membranes through melt extrusion-annealing-uniaxial stretching technique (MEAUS). Branched or very fluid polypropylene was employed to modify the polymeric composition. In some blends, micro-sized calcium carbonate was added. We analysed the influence of sample composition, extrusion draw ratio, and we performed a deep study concerning the uniaxial strain rate, using in some cases extreme strain rates and strain extents. The crystalline features were studied by Differential Scanning Calorimetry (DSC), and the morphology of porous structure was analyzed through Scanning Electron Microscopy (SEM). Thermal stability and thermomechanical performance was measured by thermogravimetric analysis (TGA) and dynamic-mechanical-thermal (DTMA) study. A close relationship was found between crystalline characteristics, porous morphology and the trends registered for permeability.
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34
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Ren Y, Zou H, Wang S, Liu J, Gao D, Wu C, Zhang S. Effect of annealing on microstructure and tensile properties of polypropylene cast film. Colloid Polym Sci 2017. [DOI: 10.1007/s00396-017-4220-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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35
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Initiation of cavitation upon drawing of pre-oriented polypropylene film: In situ SAXS and WAXD studies. POLYMER 2017. [DOI: 10.1016/j.polymer.2017.09.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Crystalline microstructure and dielectric properties of oriented poly(ethylene-co-tetrafluoroethylene). POLYMER 2017. [DOI: 10.1016/j.polymer.2017.02.038] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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37
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Influence of precursor film microstructure on properties of HDPE microporous membranes prepared by stretching. J Appl Polym Sci 2017. [DOI: 10.1002/app.44725] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Strain and temperature dependence of deformation mechanism of lamellar stacks in HDPE and its guidance on microporous membrane preparation. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.10.043] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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39
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Zhu Y, Zhao Y, Fu Q. Toward uniform pore-size distribution and high porosity of isotactic polypropylene microporous membrane by adding a small amount of ultrafine full-vulcanized powder rubber. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.09.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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40
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Xiande C, Ruijie X, Jiayi X, Yuanfei L, Caihong L, Liangbin L. The study of room-temperature stretching of annealed polypropylene cast film with row-nucleated crystalline structure. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.04.054] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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41
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Himma NF, Anisah S, Prasetya N, Wenten IG. Advances in preparation, modification, and application of polypropylene membrane. JOURNAL OF POLYMER ENGINEERING 2016. [DOI: 10.1515/polyeng-2015-0112] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Polypropylene (PP) is one of the most used polymers for microporous membrane fabrication due to its good thermal stability, chemical resistance, mechanical strength, and low cost. There have been numerous studies reporting the developments and applications of PP membranes. However, PP membrane with high performance is still a challenge. Thus, this article presents a comprehensive overview of the advances in the preparation, modification and application of PP membrane. The preparation methods of PP membrane are firstly reviewed, followed by the modification approaches of PP membrane. The modifications includes hydrophilic and superhydrophobic modification so that the PP membranes become more suitable to be applied either in aqueous applications or in non-aqueous ones. The fouling resistant of hydrophilized PP membrane and the wetting resistant of superhydrophobized PP membrane are then reviewed. Finally, special attention is given to the various potential applications and industrial outlook of the PP membranes.
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42
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Shao H, Wei F, Wu B, Zhang K, Yao Y, Liang S, Qin S. Effects of annealing stress field on the structure and properties of polypropylene hollow fiber membranes made by stretching. RSC Adv 2016. [DOI: 10.1039/c5ra21785g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By adopting three types of annealing stress fields, this work focused on investigating their effects on the microstructural evolution of polypropylene (PP) hollow fiber precursors obtained by the melt spinning process.
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Affiliation(s)
- Huiju Shao
- National Engineering Research Center for Compounding and Modification of Polymer Materials
- Guiyang 550014
- People's Republic of China
| | - Fujian Wei
- National Engineering Research Center for Compounding and Modification of Polymer Materials
- Guiyang 550014
- People's Republic of China
| | - Bin Wu
- National Engineering Research Center for Compounding and Modification of Polymer Materials
- Guiyang 550014
- People's Republic of China
| | - KaiZhou Zhang
- National Engineering Research Center for Compounding and Modification of Polymer Materials
- Guiyang 550014
- People's Republic of China
| | - Yong Yao
- National Engineering Research Center for Compounding and Modification of Polymer Materials
- Guiyang 550014
- People's Republic of China
| | - Songmiao Liang
- Vontron Membrane Technology Co., Ltd
- Guiyang 550018
- People's Republic of China
| | - Shuhao Qin
- National Engineering Research Center for Compounding and Modification of Polymer Materials
- Guiyang 550014
- People's Republic of China
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43
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Saffar A, Tabatabaei SH, Carreau PJ, Ajji A, Kamal MR. Rheology of PP/PP-g-MA and PP/PP-g-AA Blends and Incidence on Orientation and Crystalline Structure of Their Cast Films. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amir Saffar
- Research
Center for High Performance Polymer and Composite Systems (CREPEC),
Chemical Engineering Department, Polytechnique Montreal, P.O. Box 6079, Stn Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Seyed H. Tabatabaei
- Research
Center for High Performance Polymer and Composite Systems (CREPEC),
Chemical Engineering Department, Polytechnique Montreal, P.O. Box 6079, Stn Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Pierre J. Carreau
- Research
Center for High Performance Polymer and Composite Systems (CREPEC),
Chemical Engineering Department, Polytechnique Montreal, P.O. Box 6079, Stn Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Abdellah Ajji
- Research
Center for High Performance Polymer and Composite Systems (CREPEC),
Chemical Engineering Department, Polytechnique Montreal, P.O. Box 6079, Stn Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Musa R. Kamal
- CREPEC,
Department of Chemical Engineering, McGill University, 3610 University
Street, Montreal, Quebec H3A 2B2, Canada
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44
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Song K, Zhang Y, Tajaddod N, Minus ML. Application of the Electron Density Correlation Function for Structural Analysis of X-ray Scattering/Diffraction Information from Polymer-based Nano-Composites. ACTA ACUST UNITED AC 2015. [DOI: 10.1557/opl.2015.760] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTModern diffraction and scattering methods of X-ray radiation allow for multi-scale probing of the material morphology for both polymer-based composite films and fibers. These approaches and analyses tools can be used to map the makeup of individual grain structures in various polymer nano-composites in order to examine the effects of the fillers on nano-scale structural changes in the materials. The electron intensity correlation function, derived from Fourier transformations of the X-ray scattering pattern provides a path to analyze acquired data for space resolved domains. Here in this study, polymer-based nano-carbon composite systems are analyzed. The polymers used include polyvinyl alcohol, polyethylene, and polyacrilonitrile as matrix materials. The nano-carbon filler contribution to the grain size evolution is tracked by X-ray scattering/diffraction characterization. These results show that the relevant sizes of crystalline and amorphous domains within the lamellae structures correspond to the dispersion/distribution of the nano-filler in the composite materials. This work mainly illustrates an effective use of the correlation function to provide global morphological analysis in the composite system.
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45
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Microscopic deformation behavior of hard elastic polypropylene during cold-stretching process in fabrication of microporous membrane as revealed by synchrotron X-ray scattering. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.06.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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46
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Matsui K, Bando A, Sakurai T, Shinohara Y, Maruyama T, Masunaga H, Amemiya Y. Macroscopically homogeneous deformation in injection molded polypropylene induced by annealing studied with microbeam X-ray scattering. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.06.039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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47
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Fabrication of microporous membranes from melt extruded polypropylene precursor films via stretching: Effect of annealing. CHINESE JOURNAL OF POLYMER SCIENCE 2015. [DOI: 10.1007/s10118-015-1643-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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48
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Shi W, McGrath AJ, Li Y, Lynd NA, Hawker CJ, Fredrickson GH, Kramer EJ. Cooperative and Sequential Phase Transitions in it-Poly(propylene oxide)-b-poly(ethylene oxide)-b-it-poly(propylene oxide) Triblock Copolymers. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00326] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
| | | | | | - Nathaniel A. Lynd
- McKetta Department of Chemical Engineering, University of Texas at Austin, Austin, Texas 78712, United States
- Materials Sciences
Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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49
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Goonoo N, Bhaw-Luximon A, Rodriguez IA, Wesner D, Schönherr H, Bowlin GL, Jhurry D. Poly(ester-ether)s: III. assessment of cell behaviour on nanofibrous scaffolds of PCL, PLLA and PDX blended with amorphous PMeDX. J Mater Chem B 2015; 3:673-687. [DOI: 10.1039/c4tb01350f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
SEM images of HDF cells on scaffolds: (a) PCL/PMeDX: 93/7-good adhesion and proliferation, (b) PDX/PMeDX: 98/2-good adhesion, proliferation & infiltration and (c) PLLA/PMeDX: 85/15-good proliferation and infiltration.
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Affiliation(s)
- N. Goonoo
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit
- Mauritius
| | - A. Bhaw-Luximon
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit
- Mauritius
| | - I. A. Rodriguez
- Biomedical Engineering Department
- University of Memphis
- Memphis
- USA
| | - D. Wesner
- Physical Chemistry I
- Department of Chemistry and Biology
- University of Siegen
- 57076 Siegen
- Germany
| | - H. Schönherr
- Physical Chemistry I
- Department of Chemistry and Biology
- University of Siegen
- 57076 Siegen
- Germany
| | - G. L. Bowlin
- Biomedical Engineering Department
- University of Memphis
- Memphis
- USA
| | - D. Jhurry
- ANDI Centre of Excellence for Biomedical and Biomaterials Research
- University of Mauritius
- Réduit
- Mauritius
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50
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Xu RJ, Chen XD, Cai Q, Chen CB, Lin YF, Lei CH, Li LB. In situ study of the annealing process of a polyethylene cast film with a row-nucleated crystalline structure by SAXS. RSC Adv 2015. [DOI: 10.1039/c5ra00659g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The secondary crystallization has more effect on polyethylene crystal thickening than melt recrystallization during the annealing process.
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Affiliation(s)
- R. J. Xu
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - X. D. Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Q. Cai
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - C. B. Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - Y. F. Lin
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology
- CAS Key Laboratory of Soft Matter Chemistry
- University of Science and Technology of China
- Hefei 230051
- PR China
| | - C. H. Lei
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter
- School of Materials and Energy
- Guangdong University of Technology
- Guangzhou 510006
- PR China
| | - L. B. Li
- National Synchrotron Radiation Lab and College of Nuclear Science and Technology
- CAS Key Laboratory of Soft Matter Chemistry
- University of Science and Technology of China
- Hefei 230051
- PR China
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