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Wang SQ, Smith T, Gupta C, Siavoshani AY. Building a phenomenological chain-level understanding of mechanics of semicrystalline polymers: 2. Conceptual. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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2
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The Structural Evolution and Mechanical Properties of Semi-Aromatic Polyamide 12T after Stretching. Polymers (Basel) 2022; 14:polym14224805. [PMID: 36432932 PMCID: PMC9693562 DOI: 10.3390/polym14224805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/30/2022] [Accepted: 11/01/2022] [Indexed: 11/11/2022] Open
Abstract
The development of semi-aromatic polyamides with excellent mechanical properties has always been a popular research avenue. In this work, the semi-aromatic polyamide 12T (PA12T) with the maximum tensile strength of 465.5 MPa was prepared after stretching at 210 °C 4.6 times. Wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS) were used to characterize the structural evolution of semi-aromatic polyamide 12T (PA12T) after stretching at different stretching temperatures and stretching ratios. The formation mechanism of this change in mechanical properties was investigated from different aspects of the aggregated structure such as crystal morphology, crystal orientation and crystallinity. The relevant characterization results show that the crystal structure, crystal orientation and crystallinity of PA12T were the highest when the sample was pre-stretched at 210 °C, which is crucial for improving the mechanical properties of PA12T. These findings will provide important guidance for the preparation of polymer materials with excellent mechanical properties.
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3
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Li JX, Niu DY, Liu B, Xu PW, Yang WJ, Lemstra PJ, Ma PM. Improvement on the Mechanical Performance and Resistance Towards Hydrolysis of Poly(glycolic acid) via Solid-state Drawing. CHINESE JOURNAL OF POLYMER SCIENCE 2022. [DOI: 10.1007/s10118-022-2760-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Crystallization Behavior of Rapid-Compression-Induced Mesomorphic Isotactic Polypropylene during Uniaxial Stretching at Different Temperatures. POLYMER CRYSTALLIZATION 2022. [DOI: 10.1155/2022/5750961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The uniform bulk mesomorphic iPP is prepared by rapid compression, and its structural evolution under stretching at different temperatures is studied by combining wide-angle X-ray diffraction and small-angle X-ray scattering. Results show that stretching can induce mesophase to crystallize into α-phase or promote this phase transformation synergistically with temperature, which depends on the selection of stretching temperature. When the temperature is lower than the glass transition temperature of rigid amorphous fraction (RAF), stress could make RAF devitrify firstly and then induce meso-α phase transition during the strain-softening process. As the temperature increases, the high temperature could induce meso-α phase transition to occur before the strain softening, while stretching could promote this transition. When the temperature is higher than a critical value around 100°C, the mesophase can be transformed into α-phase completely during stretching. SAXS results show that all the transformed α-crystal exhibits nodular morphology, and they are ductile with greatly enhanced deformability. Based on the results, a reasonable mechanism of meso-α transformation in the stretching process is proposed, explaining the phase transition that goes through several different steps.
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Feng S, Zhu J, Yu W, Guo H, Chen W, Lu A, Li L. Strain-Rate-Dependent Phase Transition Mechanism in Polybutene-1 during Uniaxial Stretching: From Quasi-Static to Dynamic Loading Conditions. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c02561] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shengyao Feng
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Jianhe Zhu
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wancheng Yu
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Hang Guo
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wei Chen
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Ai Lu
- Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
| | - Liangbin Li
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
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6
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McCutcheon CJ, Zhao B, Ellison CJ, Bates FS. Crazing and Toughness in Diblock Copolymer-Modified Semicrystalline Poly( l-lactide). Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Charles J. McCutcheon
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Boran Zhao
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Christopher J. Ellison
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Frank S. Bates
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Zhao J, Feng S, Zhang W, Chen W, Sheng J, Yu W, Li L. Strain Rate Dependence of Stretch-Induced Crystallization and Crystal Transition of Poly(dimethylsiloxane). Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c01407] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jingyun Zhao
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Shengyao Feng
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wenwen Zhang
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wei Chen
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Junfang Sheng
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Wancheng Yu
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Liangbin Li
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China
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8
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Feng S, Lin Y, Yu W, Iqbal O, Habumugisha JC, Chen W, Meng L, Lu A, Li L. Stretch-induced structural transition of linear low-density polyethylene during uniaxial stretching under different strain rates. POLYMER 2021. [DOI: 10.1016/j.polymer.2021.123795] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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10
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Stretch-induced structural evolution of pre-oriented isotactic polypropylene films: An in-situ synchrotron radiation SAXS/WAXS study. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123234] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Comparison of the Structural Evolution of β Polypropylene during the Sequential and Simultaneous Biaxial Stretching Process. CHINESE JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1007/s10118-021-2534-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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12
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Pin JM, Tuccitto AV, Shivokhin ME, Lee PC. Linking ethylene co-monomer content and stereostructure to polycrystallinity and foam density of random copolymers of polypropylene. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123123] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Iqbal O, Habumugisha JC, Feng S, Lin Y, Chen W, Yu W, Li L. Microstructural Origin of the Double Yield Points of the Metallocene Linear Low-Density Polyethylene (mLLDPE) Precursor Film under Uniaxial Tensile Deformation. Polymers (Basel) 2020; 13:polym13010126. [PMID: 33396888 PMCID: PMC7794766 DOI: 10.3390/polym13010126] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/25/2020] [Accepted: 12/25/2020] [Indexed: 11/16/2022] Open
Abstract
The microstructural origin of the double yield points of metallocene linear low-density polyethylene (mLLDPE) precursor films has been studied with the assistance of the synchrotron radiation small- and wide-angle X-ray scattering (SAXS/WAXS). It has been shown that the microstructural origin of the double yield points is highly related to the initial orientation of the original precursor film. For less oriented mLLDPE precursor films, the rearrangement of lamellae and the appearance of the monoclinic phase are the microstructural origins of the first yield point. In comparison, for the highly-oriented mLLDPE precursor film, only the orthorhombic-monoclinic phase transition appears at the first yield point. The melting-recrystallization and the formation of the fibrillary structure happen beyond the second yield point for all studied mLLDPE precursor films. Finally, the detailed microstructural evolution roadmaps of mLLDPE precursor films under uniaxial tensile deformation have been established, which might serve as a guide for processing high-performance polymer films by post-stretching.
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Affiliation(s)
- Obaid Iqbal
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; (O.I.); (J.C.H.); (S.F.); (Y.L.); (W.C.)
| | - Jean Claude Habumugisha
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; (O.I.); (J.C.H.); (S.F.); (Y.L.); (W.C.)
| | - Shengyao Feng
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; (O.I.); (J.C.H.); (S.F.); (Y.L.); (W.C.)
| | - Yuanfei Lin
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; (O.I.); (J.C.H.); (S.F.); (Y.L.); (W.C.)
- South China Advanced Institute for Soft Matter Science and Technology, School of Molecular Science and Engineering, Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangzhou 510640, China
| | - Wei Chen
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; (O.I.); (J.C.H.); (S.F.); (Y.L.); (W.C.)
| | - Wancheng Yu
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; (O.I.); (J.C.H.); (S.F.); (Y.L.); (W.C.)
- Correspondence: (W.Y.); (L.L.)
| | - Liangbin Li
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China; (O.I.); (J.C.H.); (S.F.); (Y.L.); (W.C.)
- Correspondence: (W.Y.); (L.L.)
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14
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Xia Y, Tan X, Zhu M, Huang J, Wang X, Guo Z. A mechanistic investigation of the directional entrapping modification on the semicrystalline polypropylene surface. J Appl Polym Sci 2020. [DOI: 10.1002/app.49153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yichen Xia
- College of Material Science and EngineeringNanjing Tech University Nanjing China
| | - Xiaochun Tan
- College of Material Science and EngineeringNanjing Tech University Nanjing China
| | - Meng Zhu
- College of Material Science and EngineeringNanjing Tech University Nanjing China
| | - Jian Huang
- College of Material Science and EngineeringNanjing Tech University Nanjing China
| | - Xiaolin Wang
- Department of Chemical EngineeringTsinghua University Beijing China
| | - Zijian Guo
- College of Material Science and EngineeringNanjing Tech University Nanjing China
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15
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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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16
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Koga M, Watanabe R, Hagihara H, Mizukado J, Tokita M, Shinzawa H. Accelerated aging-induced variation of polypropylene (PP) structure studied by two-dimensional (2D) small-angle X-ray scattering (SAXS) correlation spectroscopy. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Lin Y, Chen W, Meng L, Wang D, Li L. Recent advances in post-stretching processing of polymer films with in situ synchrotron radiation X-ray scattering. SOFT MATTER 2020; 16:3599-3612. [PMID: 32232297 DOI: 10.1039/c9sm02554e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The stretch-induced structural evolution mechanism is a long-standing scientific question in the post-stretching processing of polymer films. X-ray scattering, especially a combination of small- and wide-angle X-ray scattering (SAXS/WAXS), provides a powerful method to study the hierarchical structure of polymer films. Recent advances in synchrotron radiation (SR) light sources and detection techniques allow one to measure the structural evolution of polymer films during post-stretching processing in real time with ultrahigh time resolution, which benefits the understanding on this topic. This review summarizes some recent investigations on post-stretching processing of polymer films, which combine in situ X-ray scattering techniques with purposely designed tensile apparatus in terms of three aspects: uniaxial stretching, biaxial stretching and stretching with chemical reactions. Concerning the polymer bulk, traditional deformation mechanisms like stretch-induced crystallization (SIC), crystal slipping, phase transition and melting-recrystallization are discussed for the uniaxial and biaxial post-stretching of polymer films. New deformation models have been developed to focus on the structural evolution on the length scale of lamellar stacks, which consider the potential microphase separation of the interlamellar amorphous phase and microbuckling. For solution systems, the coupled effects of the mechanical work from external force and the chemical potential from possible chemical reactions are taken into account for the structural evolution during stretching in solution. Roadmaps of structural and morphological evolution in the processing parameter space (i.e., temperature, stress, strain and the concentration of additive in the bath solution) are eventually constructed for precursor films. The accumulation of a structural evolution database for post-stretching processing of polymer films can be expected to provide a helpful guide for industrial processing for high-performance polymers in the near future.
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Affiliation(s)
- Yuanfei Lin
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China. and South China Advanced Institute for Soft Matter Science and Technology, South China University of Technology, Guangzhou, China
| | - Wei Chen
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.
| | - Lingpu Meng
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.
| | - Daoliang Wang
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.
| | - Liangbin Li
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.
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18
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Chen Q, Wang Z, Zhang S, Cao Y, Chen J. Structure Evolution and Deformation Behavior of Polyethylene Film during Biaxial Stretching. ACS OMEGA 2020; 5:655-666. [PMID: 31956815 PMCID: PMC6964308 DOI: 10.1021/acsomega.9b03250] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 12/17/2019] [Indexed: 06/10/2023]
Abstract
The structure evolution and deformation behavior of tenter-frame biaxially oriented polyethylene (TF-BOPE) films were investigated in this study. For sequential biaxial stretching, the original spherulites were broken into small pieces, and the fibrillar structure simultaneously formed during the machine direction (MD) stretching. Subsequently, the single fibrils were pulled away, and some fine fibrils developed via partial melting-recrystallization or lamellar rearrangement during the transverse direction (TD) stretching, which leads to the formation of the vein structure and nanosized fiber-like network. For simultaneous biaxial stretching, the fractured lamellae and the newly formed crystals were evenly distributed in the MD-TD plane like an isotropous fibrillar network. Moreover, compared with the unstretched sample, both films could achieve up to about 2 times the tensile modulus and 4.5 times the tensile strength and also exhibited the superior optical property.
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Affiliation(s)
| | | | | | | | - Jinyao Chen
- E-mail: . Fax: +86-28-8540-6333.
Tel.: +86-28-8540-6333
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Yang S, Wei QY, Gao XR, Zhou L, Xu L, Tang JH, Zhong GJ, Ji X, Li ZM. Robust, transparent films of propylene−ethylene copolymer through isotropic-orientation transition at low temperature accelerated by adjustment of ethylene contents. POLYMER 2020. [DOI: 10.1016/j.polymer.2019.122099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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20
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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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21
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Probing the structural evolution in deformed isoprene rubber by in situ synchrotron X-ray diffraction and atomic force microscopy. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121926] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Lin X, Jayaraman K. Developing properties in porous tapes from die-drawing of polypropylene composites. POLYM-PLAST TECH MAT 2019. [DOI: 10.1080/25740881.2018.1563142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Xinting Lin
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan, USA
| | - Krishnamurthy Jayaraman
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, Michigan, USA
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Lin Y, Li X, Chen X, An M, Zhang Q, Wang D, Chen W, Yin P, Meng L, Li L. Deformation mechanism of hard elastic polyethylene film during uniaxial stretching: Effect of stretching speed. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121579] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Chen P, Lin Y, Zhao J, Chang J, Chen X, Meng L, Wang D, Chen W. Strain-induced crystal growth and molecular orientation of poly(isobutylene-isoprene) rubber at low temperatures. SOFT MATTER 2019; 15:4363-4370. [PMID: 31086876 DOI: 10.1039/c9sm00632j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
With the combination of a low-temperature extension rheometer and in situ synchrotron radiation wide-angle X-ray diffraction (SR-WAXD), the strain-induced crystallization (SIC) of poly(isobutylene-isoprene) rubber (IIR) was studied in the low-temperature region (-60 °C → 25 °C). The detailed structural evolution of IIR during the SIC is summarized in the strain-temperature space, where three distinct temperature zones are defined. The absence of the SIC in zone I (T > 0 °C) results in the poorest drawability of IIR among all measured temperatures. And with respect to the lowest temperature zone III (-60 °C < T < -50 °C), the SIC still occurs with low ultimate crystallinity (ca. 0.9%). More complicated structural evolution induced by the strain occurs in the intermediate-temperature zone II (-50 °C ≤ T ≤ 0 °C). The orientation ratio of the amorphous part Oa increases monotonically with the increment of the strain, but reaches a platform with Hencky strain ε > ca. 1.8. Meanwhile, the strain-induced crystal growth of IIR is evidenced by the dramatic increment of the lateral crystallite size of (110) and (113) planes. Moreover, the retraction experiment further reveals the network evolutions of IIR: suffering from low ultimate crystallinity (<ca. 9%), the network chain of IIR remains in series upon fracture. The current study clarifies the contribution of the SIC and molecular orientation to the self-enhanced mechanical properties of IIR at low temperatures.
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Affiliation(s)
- Pinzhang Chen
- National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.
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25
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Ding X, Kong H, Qiao M, Hu Z, Yu M. Study on Crystallization Behaviors and Properties of F-III Fibers during Hot Drawing in Supercritical Carbon Dioxide. Polymers (Basel) 2019; 11:polym11050856. [PMID: 31083401 PMCID: PMC6572010 DOI: 10.3390/polym11050856] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/04/2019] [Accepted: 05/07/2019] [Indexed: 12/03/2022] Open
Abstract
In order to obtain F-III fibers with high mechanical properties, pristine F-III fibers were hot drawn at the temperature of 250 °C, pressure of 14 MPa, tension of 6 g·d−1, and different times, which were 15 min, 30 min, 45 min, 60 min, 75 min, 90 min, and 105 min, respectively, in supercritical carbon dioxide (Sc-CO2) in this article. All the samples, including the pristine and treated F-III fibers, were characterized by a mechanical performance tester, wide-angle X-ray scattering (WAXS), small-angle X-ray scattering (SAXS), and thermogravimetric analysis (TGA). The results showed that the thermal stability of F-III fibers was enhanced to some extent, and the tensile strength and modulus of F-III fibers had great changes as the extension of treatment time during hot drawing in Sc-CO2, although the treatment temperature was lower than the glass transition temperature (Tg) of F-III fibers. Accordingly, the phase fraction, orientation factor fc of the (110) crystal plane, fibril length lf, and misorientation angle Bφ of all the samples were also investigated. Fortunately, the hot drawing in Sc-CO2 was successfully applied to the preparation of F-III fibers with high mechanical properties.
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Affiliation(s)
- Xiaoma Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Key Laboratory of Lightweight Composite, Shanghai 201620, China.
| | - Haijuan Kong
- School of Materials Engineer, Shanghai University of Engineer Science, Shanghai 201620, China.
| | - Mengmeng Qiao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Key Laboratory of Lightweight Composite, Shanghai 201620, China.
| | - Zhifeng Hu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Key Laboratory of Lightweight Composite, Shanghai 201620, China.
| | - Muhuo Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China.
- Shanghai Key Laboratory of Lightweight Composite, Shanghai 201620, China.
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Lyu D, Tang Y, Qian L, Chen R, Lu Y, Men Y. Large strain cavitation induced stress whitening in propylene-butene-1 copolymer during stretching. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.081] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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27
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Wan C, Chen X, Lv F, Chen X, Meng L, Li L. Biaxial stretch-induced structural evolution of polyethylene gel films: Crystal melting recrystallization and tilting. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.01.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Zhang W, Yan Q, Ye K, Zhang Q, Chen W, Meng L, Chen X, Wang D, Li L. The effect of water absorption on stretch-induced crystallization of poly(ethylene terephthalate): An in-situ synchrotron radiation wide angle X-ray scattering study. POLYMER 2019. [DOI: 10.1016/j.polymer.2018.12.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Duan T, Xu H, Tang Y, Jin J, Wang Z. Effect of epitaxial crystallization on the structural evolution of PCL/RGO nanocomposites during stretching by in-situ synchrotron radiation. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.11.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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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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31
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In Situ Synchrotron Radiation Techniques: Watching Deformation-induced Structural Evolutions of Polymers. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2169-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Lin Y, Li X, Meng L, Chen X, Lv F, Zhang Q, Li L. Stress-induced microphase separation of interlamellar amorphous phase in hard-elastic isotactic polypropylene film. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.06.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Chen X, Lv F, Lin Y, Wang Z, Meng L, Zhang Q, Zhang W, Li L. Structure evolution of polyethylene-plasticizer film at industrially relevant conditions studied by in-situ X-ray scattering: The role of crystal stress. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.02.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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34
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Zhang Q, Zhang R, Meng L, Ji Y, Su F, Lin Y, Li X, Chen X, Lv F, Li L. Stretch-induced structural evolution of poly (vinyl alcohol) film in water at different temperatures: An in-situ synchrotron radiation small- and wide-angle X-ray scattering study. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.03.036] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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35
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Lin Y, Li X, Meng L, Chen X, Lv F, Zhang Q, Zhang R, Li L. Structural Evolution of Hard-Elastic Isotactic Polypropylene Film during Uniaxial Tensile Deformation: The Effect of Temperature. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00255] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yuanfei Lin
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
| | - Xueyu Li
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
| | - Lingpu Meng
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
| | - Xiaowei Chen
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
| | - Fei Lv
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
| | - Qianlei Zhang
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
| | - Rui Zhang
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
| | - Liangbin Li
- National Synchrotron Radiation Lab, CAS Key Laboratory of Soft Matter Chemistry, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, University of Science and Technology of China, Hefei, China
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36
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Initiation, Development and Stabilization of Cavities during Tensile Deformation of Semicrystalline Polymers. CHINESE JOURNAL OF POLYMER SCIENCE 2018. [DOI: 10.1007/s10118-018-2123-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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37
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Chang B, Schneider K, Vogel R, Heinrich G. Influence of nucleating agent self-assembly on structural evolution of isotactic polypropylene during uniaxial stretching. POLYMER 2018. [DOI: 10.1016/j.polymer.2018.01.081] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Zhang W, Li J, Shang Y, Li H, Jiang S, An L. Deformation-induced structure evolution of poly(butylene terephthalate)/poly(carbonate) blends during uniaxial stretching. CrystEngComm 2017. [DOI: 10.1039/c7ce01465a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Phase separation occurs during deformation for all the PBT/PC samples. At large strains, microfibril slippage plays a leading role in the macroscopic strain.
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Affiliation(s)
- Wenyang Zhang
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Jingqing Li
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Yingrui Shang
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Hongfei Li
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
| | - Shichun Jiang
- School of Materials Science and Engineering
- Tianjin University
- Tianjin 300072
- P. R. China
| | - Lijia An
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- P. R. China
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