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Yao X, Shi Y, Tang Y, Luo C, Hou L, Ren M, Zheng C, Liu LZ. CRYSTAF, DSC and SAXS Study of the Co-Crystallization, Phase Separation and Lamellar Packing of the Blends with Different Polyethylenes. Polymers (Basel) 2023; 15:polym15081940. [PMID: 37112087 PMCID: PMC10144434 DOI: 10.3390/polym15081940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/17/2023] [Accepted: 04/17/2023] [Indexed: 04/29/2023] Open
Abstract
The crystallization of polyethylene (PE) blends is a highly complex process, owing to the significant differences in crystallizability of the various PE components and the varying PE sequence distributions resulting from short- or long-chain branching. In this study, we examined both the resins and their blends through crystallization analysis fractionation (CRYSTAF) to understand the PE sequence distribution and differential scanning calorimetry (DSC) to investigate the non-isothermal crystallization behavior of the bulk materials. Small-angle X-ray scattering (SAXS) was utilized to study the crystal packing structure. The results showed that the PE molecules in the blends crystallize at different rates during cooling, resulting in a complicated crystallization behavior characterized by nucleation, co-crystallization, and fractionation. We compared these behaviors to those of reference immiscible blends and found that the extent of the differences is related to the disparity in crystallizability between components. Furthermore, the lamellar packing of the blends is closely associated with their crystallization behaviors, and the crystalline structure varies significantly depending on the components' compositions. Specifically, the lamellar packing of the HDPE/LLDPE and HDPE/LDPE blends is similar to that of the HDPE component owing to its strong crystallizability, while the lamellar packing of the LLDPE/LDPE blend is approximately an average of the two neat components.
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Affiliation(s)
- Xuerong Yao
- SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China
| | - Ying Shi
- Advanced Manufacturing Institute of Polymer Industry, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yujing Tang
- SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China
| | - Chunxia Luo
- SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China
| | - Liping Hou
- 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
| | - Cui Zheng
- SINOPEC (Beijing) Research Institute of Chemical Industry Co., Ltd., Beijing 100013, China
| | - Li-Zhi Liu
- Advanced Manufacturing Institute of Polymer Industry, Shenyang University of Chemical Technology, Shenyang 110142, China
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2
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Li H, Ye Q, Sun J, Cui S, Zhang Z, Liu C, Shen C, Wang Z. A combined melt-stretching and quenching setup for experimental studies of polymer crystallization under complex flow-temperature environments. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2023; 94:015102. [PMID: 36725543 DOI: 10.1063/5.0130699] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 12/05/2022] [Indexed: 06/18/2023]
Abstract
A combined melt-stretching and quenching setup is designed and developed to allow experimental investigations of polymer crystallization under the complex flow-temperature environments comparable to those encountered in the actual industrial processing. The melt-stretching proceeds by two drums rotating in the opposite directions with simultaneous recording of a stress-strain curve, where the Hencky strain and strain rate (≤233 s-1) are adjustable over a large range. After stretching, liquid N2 is used as a cooling medium to quench the free-standing melt, which is sprayed directly to the deformed melt driven by an electric pump. To ensure a high cooling efficiency, a three-way solenoid valve is employed to execute a sequential control of the liquid N2 flow direction to reduce the boil-off of liquid N2 before entering the sample chamber. The melt cooling rate depends on the liquid N2 flow rate controlled by a flow valve, which is up to 221 °C/s when quenching the isotactic polypropylene (iPP) melt with a thickness of 0.28 mm at 150 °C. Two independent temperature control modules are designed to meet the requirements of different stages of melt-stretching and quenching. To verify the capability of the setup, we have performed the melt-stretching and quenching experiments on iPP samples. The setup is demonstrated to be a valuable new tool to study polymer crystallization under coupled flow-cooling fields.
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Affiliation(s)
- Hanchuan Li
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Qiuyang Ye
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Jiahui Sun
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Shanlin Cui
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Zhen Zhang
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Chuntai Liu
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Changyu Shen
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
| | - Zhen Wang
- National Engineering Research Center for Advanced Polymer Processing Technology, Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou University, Zhengzhou 450002, China
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3
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Song K, Liu D, Wu LF, Wang Z. Multiple kinetic processes of lamellar growth in crystallization of stretched lightly crosslinked polyethylene. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.125586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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4
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Dai Z, Li J, Huang S, Li B, Zou X, Wu L, He M. Epoxy‑modified Pyrophyllite as a Multifunctional Chain Extender for Poly (Latic Acid). MACROMOL CHEM PHYS 2022. [DOI: 10.1002/macp.202200194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhixi Dai
- College of Materials and Metallurgy Guizhou University Guiyang 550025 China
| | - Juan Li
- National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang 550014 China
| | - Shaowen Huang
- National Engineering Research Center for Compounding and Modification of Polymeric Materials Guiyang 550014 China
| | - Bo Li
- College of Materials and Metallurgy Guizhou University Guiyang 550025 China
| | - Xiaoyu Zou
- College of Materials and Metallurgy Guizhou University Guiyang 550025 China
| | - Liangxi Wu
- College of Materials and Metallurgy Guizhou University Guiyang 550025 China
| | - Min He
- College of Materials and Metallurgy Guizhou University Guiyang 550025 China
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5
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Song K, Wu LF, Liu D, Huang LZ, Miao XR, Wang Z. Flow-Induced Shish Nucleation in Lightly Crosslinked Polyethylene: Connecting Polymer Properties and Strain to the Final Shish–Kebab Structure. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c00526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kun Song
- Department of Engineering Physics & Key Laboratory of Particle & Radiation Imaging (Tsinghua University) of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Lin-Feng Wu
- Department of Engineering Physics & Key Laboratory of Particle & Radiation Imaging (Tsinghua University) of Ministry of Education, Tsinghua University, Beijing 100084, China
| | - Dong Liu
- Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics (CAEP), Mianyang 621999, China
| | - Li-Zhao Huang
- Key Laboratory of Neutron Physics and Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics (CAEP), Mianyang 621999, China
| | - Xia-Ran Miao
- Shanghai Synchrotron Radiation Facility, Shanghai 201204, China
| | - Zhe Wang
- Department of Engineering Physics & Key Laboratory of Particle & Radiation Imaging (Tsinghua University) of Ministry of Education, Tsinghua University, Beijing 100084, China
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6
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Zhao X, Liao T, Yang X, Coates P, Whiteside B, Barker D, Thompson G, Jiang Z, Men Y. Mold temperature- and molar mass-dependent structural formation in micro-injection molding of isotactic polypropylene. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124797] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Li J, Chen B, Yang H, Shen K, Deng C, Gao X. Enhanced effect of thermal expansion process in rotational shear technology for high performance HDPE pipes. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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8
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Liao T, Yang X, Zhao X, Tang Y, Jiang Z, Men Y. Gaussian and Non-Gaussian Distributions of Fracture Properties in Tensile Stretching of High-Density Polyethylene. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00944] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Tao Liao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
| | - Xiao Yang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Xintong Zhao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
| | - Yujing Tang
- Sinopec Beijing Research Institute of Chemical Industry, Beijing 100013, China
| | - Zhiyong Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
| | - Yongfeng Men
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
- University of Science and Technology of China, Hefei 230026, China
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9
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In situ synchrotron small angle X-ray scattering investigation of structural formation of polyethylene upon micro-injection molding. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123390] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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10
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Chen B, Yang H, Shen K, Fu Q, Gao X. The effect of high-temperature annealing on thermal properties and morphology of polyethylene pipes prepared by rotational shear. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122770] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Lin Y, Bilotti E, Bastiaansen CW, Peijs T. Transparent semi‐crystalline polymeric materials and their nanocomposites: A review. POLYM ENG SCI 2020. [DOI: 10.1002/pen.25489] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yunyin Lin
- School of Engineering and Materials Science Queen Mary University of London London UK
| | - Emiliano Bilotti
- School of Engineering and Materials Science Queen Mary University of London London UK
| | - Cees W.M. Bastiaansen
- School of Engineering and Materials Science Queen Mary University of London London UK
- Laboratory of Functional Organic Materials and Devices Eindhoven University of Technology Eindhoven The Netherlands
| | - Ton Peijs
- Materials Engineering Centre, WMG University of Warwick Coventry UK
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12
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Xie Z, Gao N, Du Z, Yang H, Shen K, Fu Q, Gao X. Role of Melt Plasticizing Temperature in Morphology and Properties of PE100 Pipes Prepared by a Rotational Shear System. ACS OMEGA 2020; 5:12660-12671. [PMID: 32548449 PMCID: PMC7288367 DOI: 10.1021/acsomega.9b04138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/18/2020] [Indexed: 06/11/2023]
Abstract
To increase the maximum internal pressure that a polyethylene (PE) pipe can withstand, a novel rotational shear system (RSS) was constructed in this study to fabricate PE pipes with enhanced hoop strength by applying hoop shear on the pipes using a rotational mandrel. The microstructure and morphology with the influences of melt plasticizing temperature on PE pipes processing under rotational shear were investigated indirectly using small-angle X-ray scattering and wide-angle X-ray diffraction (SAXS/WAXD) measurements. In the SAXS patterns, equatorial streaks and meridional scattering peaks were clearly observed in all three samples prepared at different melt plasticizing temperatures, 215, 235, and 255 °C. Their presence indicated that shish-kebab crystals form in rotational shear. Compared to those at the low melt temperature, the increase in the melt temperature enhanced the amount and the dimensions of shish formed. However, the shish also relaxed faster at the high melt temperature. This behavior was attributed to the enhancement of the molecular chain's athletic ability. The hoop tensile strength and the heat resistance of the pipes peaked at the melt plasticizing temperature of 235 °C, 75.2 MPa, 102.4 °C, up 1 MPa, 0.2 °C (compared to the 215 °C) and 7.8 MPa, 3.2 °C (compared to the 255 °C). The axial strength increased with an increase of melt plasticizing temperature. However, the increase of melt plasticizing temperature worsens the inherent good tensile toughness of PE100 pipes as the axial elongation at break decreases.
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Affiliation(s)
- Zexiang Xie
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Ning Gao
- Chengdu Technological University, Chengdu 610023, China
| | - Zuchen Du
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Hao Yang
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Kaizhi Shen
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Qiang Fu
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
| | - Xueqin Gao
- College of Polymer
Science and Engineering, Sichuan University, Chengdu 610065, China
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13
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Du ZC, Yang H, Luo XH, Xie ZX, Fu Q, Gao XQ. The Role of Mold Temperature on Morphology and Mechanical Properties of PE Pipe Produced by Rotational Shear. CHINESE JOURNAL OF POLYMER SCIENCE 2019. [DOI: 10.1007/s10118-020-2363-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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14
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Liao T, Zhao X, Yang X, Coates P, Whiteside B, Jiang Z, Men Y. Structural evolution of flow-oriented high density polyethylene upon heating: In situ SAXS and WAXD studies. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121698] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Jiang L, Zhu M, An M, Li Y, Miao W, Wang Z, Hsiao BS. The influence of short chain branch on formation of shear-induced crystals in bimodal polyethylene at low shear temperatures. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121625] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Lin Y, Patel R, Cao J, Tu W, Zhang H, Bilotti E, Bastiaansen CW, Peijs T. Glass-like transparent high strength polyethylene films by tuning drawing temperature. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.03.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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McKelvey D, Menary G, Martin P, Yan S. Large strain, high rate semi-solid deformation of high density polyethylene at elevated temperatures. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- D. McKelvey
- School of Mechanical and Aerospace Engineering; Queen's University of Belfast; Belfast Northern Ireland BT9 5AH UK
| | - G.H. Menary
- School of Mechanical and Aerospace Engineering; Queen's University of Belfast; Belfast Northern Ireland BT9 5AH UK
| | - P.J. Martin
- School of Mechanical and Aerospace Engineering; Queen's University of Belfast; Belfast Northern Ireland BT9 5AH UK
| | - S. Yan
- School of Mechanical and Aerospace Engineering; Queen's University of Belfast; Belfast Northern Ireland BT9 5AH UK
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18
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Cui K, Ma Z, Tian N, Su F, Liu D, Li L. Multiscale and Multistep Ordering of Flow-Induced Nucleation of Polymers. Chem Rev 2018; 118:1840-1886. [DOI: 10.1021/acs.chemrev.7b00500] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kunpeng Cui
- National
Synchrotron Radiation Laboratory, Chinese Academy of Sciences Key
Laboratory of Soft Matter Chemistry, and Anhui Provincial Engineering
Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, 96 Jinzhai Road, Baohe District, Hefei 230026, People’s Republic of China
| | - Zhe Ma
- Tianjin
Key Laboratory of Composite and Functional Materials, School of Materials
Science and Engineering, Tianjin University, 92 Weijin Road,
Nankai District, Tianjin 300072, People’s Republic of China
| | - Nan Tian
- Ministry
of Education Key Laboratory of Space Applied Physics and Chemistry
and Shanxi Key Laboratory of Macromolecular Science and Technology,
School of Science, Northwestern Polytechnical University, 127 Youyi
West Road, District Beilin, Xi’an 710072, People’s Republic of China
| | - Fengmei Su
- National
Synchrotron Radiation Laboratory, Chinese Academy of Sciences Key
Laboratory of Soft Matter Chemistry, and Anhui Provincial Engineering
Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, 96 Jinzhai Road, Baohe District, Hefei 230026, People’s Republic of China
| | - Dong Liu
- Key
Laboratory of Neutron Physics and Institute of Nuclear Physics and
Chemistry, China Academy of Engineering Physics, 64 Mianshan
Road, Mianyang, Sichuan 621999, People’s Republic of China
| | - Liangbin Li
- National
Synchrotron Radiation Laboratory, Chinese Academy of Sciences Key
Laboratory of Soft Matter Chemistry, and Anhui Provincial Engineering
Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, 96 Jinzhai Road, Baohe District, Hefei 230026, People’s Republic of China
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19
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Transport mechanism of lipid covered saquinavir pure drug nanoparticles in intestinal epithelium. J Control Release 2018; 269:159-170. [DOI: 10.1016/j.jconrel.2017.11.012] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 11/04/2017] [Accepted: 11/09/2017] [Indexed: 12/13/2022]
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20
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Stretching temperature dependence of the critical strain in the tensile deformation of polyethylene copolymer. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Liu Z, Zheng G, Dai K, Liu C, Shen C. Simultaneously improving tensile strength and toughness of melt-spun β-nucleated isotactic polypropylene fibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.43454] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhongzhu Liu
- College of Materials Science and Engineering; the Key Laboratory of Advanced Materials Processing and Mold of Ministry of Education, Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Guoqiang Zheng
- College of Materials Science and Engineering; the Key Laboratory of Advanced Materials Processing and Mold of Ministry of Education, Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Kun Dai
- College of Materials Science and Engineering; the Key Laboratory of Advanced Materials Processing and Mold of Ministry of Education, Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Chuntai Liu
- College of Materials Science and Engineering; the Key Laboratory of Advanced Materials Processing and Mold of Ministry of Education, Zhengzhou University; Zhengzhou 450001 People's Republic of China
| | - Changyu Shen
- College of Materials Science and Engineering; the Key Laboratory of Advanced Materials Processing and Mold of Ministry of Education, Zhengzhou University; Zhengzhou 450001 People's Republic of China
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22
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Xu JZ, Xu L, Liang YY, Zhong GJ, Lei J, Li ZM. Temperature dependence of molecular conformation in uniaxially deformed isotactic polypropylene investigated by combination of polarized FTIR spectroscopy and 2D correlation analysis. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/polb.23683] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jia-Zhuang Xu
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 China
| | - Ling Xu
- State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 China
| | - Yuan-Ying Liang
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 China
| | - Gan-Ji Zhong
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 China
| | - Jun Lei
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 China
| | - Zhong-Ming Li
- College of Polymer Science and Engineering and State Key Laboratory of Polymer Materials Engineering, Sichuan University; Chengdu 610065 China
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23
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Free and constrained amorphous phases in polyethylene: Interpretation of 1H NMR and SAXS data over a broad range of crystallinity. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Zheng S, Deng J, Yang L, Ren D, Yang W, Liu Z, Yang M. A highly-deformable piezoresistive film composed of a network of carbon blacks and highly oriented lamellae of high-density polyethylene. RSC Adv 2015. [DOI: 10.1039/c5ra00224a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The electrical resistance change of highly extensible films consisting of a network of carbon blacks in high-density polyethylene, with different regularity of stacked lamellae, is investigated.
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Affiliation(s)
- Shaodi Zheng
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Jie Deng
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Luqiong Yang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Danqi Ren
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Wei Yang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Zhengying Liu
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
| | - Mingbo Yang
- College of Polymer Science and Engineering
- Sichuan University
- State Key Laboratory of Polymer Materials Engineering
- Chengdu
- China
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25
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Zhang RY, Yang W, Wu JJ, Feng J, Feng JM, Xie BH, Yang MB. Hierarchically oriented crystalline structures of HDPE induced by strong second melt penetration. RSC Adv 2014. [DOI: 10.1039/c4ra03404j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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26
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Wei Z, Lun R, Lou X, Tian F, Lin J, Li X, Yu J, Li F. Lamellae evolution of poly(butylene succinate-co-terephthalate) copolymer induced by uniaxial stretching and subsequent heating. RSC Adv 2014. [DOI: 10.1039/c4ra12117a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The structural evolution of biodegradable poly(butylene succinate-co-terephthalate) copolymer was investigated during the uniaxial stretching and following heating processes via in situ small-angle X-ray scattering.
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Affiliation(s)
- Zhenzhen Wei
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
| | - Ruixin Lun
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
| | - Xueqin Lou
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
| | - Feng Tian
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204, China
| | - Jinyou Lin
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204, China
| | - Xiuhong Li
- Shanghai Synchrotron Radiation Facility
- Shanghai Institute of Applied Physics
- Chinese Academy of Sciences
- Shanghai 201204, China
| | - Jianyong Yu
- Modern Textile Institute
- Donghua University
- Shanghai 200051, China
| | - Faxue Li
- Key Laboratory of Textile Science & Technology
- Ministry of Education
- China
- College of Textiles
- Donghua University
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27
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Effect of processing parameters on the morphology development during extrusion of polyethylene tape: An in-line small-angle X-ray scattering (SAXS) study. POLYMER 2013. [DOI: 10.1016/j.polymer.2013.10.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Sun Y, Fu L, Wu Z, Men Y. Structural Evolution of Ethylene–Octene Copolymers upon Stretching and Unloading. Macromolecules 2013. [DOI: 10.1021/ma3020933] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yingying Sun
- State Key Laboratory of Polymer Physics and Chemistry, Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Renmin Street
5625, 130022 Changchun, P. R. China
| | - Lianlian Fu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Renmin Street
5625, 130022 Changchun, P. R. China
| | - Zhonghua Wu
- BSRF, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, P. R. China
| | - Yongfeng Men
- State Key Laboratory of Polymer Physics and Chemistry, Changchun
Institute of Applied Chemistry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Renmin Street
5625, 130022 Changchun, P. R. China
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29
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Li CS, Zhan MS, Huang XC, Zhou H, Li Y. Hydrothermal aging mechanisms of aramid fibers via synchrotron small-angle X-ray scattering and dynamic thermal mechanical analysis. J Appl Polym Sci 2012. [DOI: 10.1002/app.38419] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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30
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Fischer S, Jiang Z, Men Y. Analysis of the Lamellar Structure of Semicrystalline Polymers by Direct Model Fitting of SAXS Patterns. J Phys Chem B 2011; 115:13803-8. [DOI: 10.1021/jp204998p] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Stefan Fischer
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin Street 5625, Changchun, P.R. China, 130022, People’s Republic of China
| | - Zhiyong Jiang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin Street 5625, Changchun, P.R. China, 130022, People’s Republic of China
| | - Yongfeng Men
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Renmin Street 5625, Changchun, P.R. China, 130022, People’s Republic of China
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31
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Effect of annealing on the microstructure and mechanical properties of polypropylene with oriented shish-kebab structure. POLYM INT 2011. [DOI: 10.1002/pi.3180] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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