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Li J, Yi Y, Wang C, Lu W, Liao M, Jing X, Wang W. An Intrinsically Transparent Polyamide Film with Superior Toughness and Great Optical Performance. Polymers (Basel) 2024; 16:599. [PMID: 38475284 DOI: 10.3390/polym16050599] [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: 01/19/2024] [Revised: 02/14/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Polyamide 66 was extensively utilized in various applications contributed by its excellent mechanical performance and outstanding durability. However, its high crystallinity renders it to have low transparency, which seriously limits its application in optical devices. Herein, a highly transparent polyamide (PA) 66-based copolymer was reported using 4,4'-diaminodicyclohexylmethane (PACM), adipic acid, and polyamide 66 salt as the reaction monomers. Wide-angle X-ray diffraction (WAXD) analysis revealed that the crystal phase of the synthesized PA66/PACM6 displayed a clear transition from α to γ as the PACM6 increased accompanied by a decreased intensity in the diffraction peak of the copolymer, whose transmittance was successfully adjusted reaching as high as 92.5% (at 550 nm) when the PACM6 was 40 wt%. Moreover, the copolymer with a higher content of PACM6 exhibited larger toughness. On the other hand, the biaxially oriented films of PA66/PACM6 (20 wt%) were also prepared, and it was found that the transparency of the PA66/PACM6 copolymer could be further enhanced via adjusting the stretching ratio of the film. Furthermore, the mechanical strength of the biaxially oriented PA66/PACM6 was also improved with the increase in the orientation degree in the stretching process, indicating that the physical properties of the transparent PA66 were significantly influenced by its alicyclic structure, and the introduction of PACM into PA66 was capable of effectively improving the optical and crystalline characteristics of PA66, revealing that the synthetic strategy has great potential for guiding the design and development of transparent polyamide materials.
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Affiliation(s)
- Jianlin Li
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
| | - Yong Yi
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
| | - Chunhua Wang
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
| | - Weijian Lu
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
| | - Mingxi Liao
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
| | - Xin Jing
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
| | - Wenzhi Wang
- National & Local Joint Engineering Research Center for Advanced Packaging Material and Technology, Hunan University of Technology, Zhuzhou 412007, China
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology, Zhuzhou 412007, China
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Gan D, Liu Y, Hu T, Fan S, Liu X, Cui L, Yang L, Wu Y, Chen L, Mo Z. The Investigation of Copolymer Composition Sequence on Non-Isothermal Crystallization Kinetics of Bio-Based Polyamide 56/512. Polymers (Basel) 2023; 15:polym15102345. [PMID: 37242922 DOI: 10.3390/polym15102345] [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: 04/16/2023] [Revised: 05/13/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
A new bio-based polyamide 56/512 (PA56/512) has been synthesized with a higher bio-based composition compared to industrialized bio-based PA56, which is considered a lower carbon emission bio-based nylon. In this paper, the one-step approach of copolymerizing PA56 units with PA512 units using melt polymerization has been investigated. The structure of the copolymer PA56/512 was characterized using Fourier-transform infrared spectroscopy (FTIR) and Proton nuclear magnetic resonance (1H NMR). Other measurement methods, including relative viscosity tests, amine end group measurement, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), were used to analyze the physical and thermal properties of the PA56/512. Furthermore, the non-isothermal crystallization behaviors of PA56/512 have been investigated with the analytical model of Mo's method and the Kissinger method. The melting point of copolymer PA56/512 exhibited a eutectic point at 60 mol% of 512 corresponding to the typical isodimorphism behavior, and the crystallization ability of PA56/512 also displayed a similar tendency.
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Affiliation(s)
- Diansong Gan
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
- Zhuzhou Times Engineering Plastics Industrial Co., Ltd., Zhuzhou 412008, China
| | - Yuejun Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Tianhui Hu
- Zhuzhou Times Engineering Plastics Industrial Co., Ltd., Zhuzhou 412008, China
| | - Shuhong Fan
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Xiaochao Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Lingna Cui
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Ling Yang
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Yincai Wu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Lily Chen
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
| | - Zhixiang Mo
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, School of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China
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Dadashi P, Babaei A, Khoshnood M. Investigating the role of PA6/GO interactions on the morphological, rheological, and mechanical properties of PA6/ABS/GO nanocomposites. POLYM-PLAST TECH MAT 2023. [DOI: 10.1080/25740881.2022.2133617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- P. Dadashi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - A. Babaei
- Department of Polymer Engineering, Faculty of Engineering, Golestan University, Gorgan, Iran
| | - M. Khoshnood
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
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Zhou X, Wang Y, Zhang J, Wang G, Liu Y, Gao C. Preparation and properties of flame retardant biobased polyamide elastomer with shape memory. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.5977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xinjie Zhou
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
- Shandong eco Chemical Collaborative Innovation Center Qingdao University of Science and Technology Qingdao China
| | - Yanqing Wang
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
- Shandong eco Chemical Collaborative Innovation Center Qingdao University of Science and Technology Qingdao China
| | - Jing Zhang
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
- Shandong eco Chemical Collaborative Innovation Center Qingdao University of Science and Technology Qingdao China
| | - Guoqing Wang
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
- Shandong eco Chemical Collaborative Innovation Center Qingdao University of Science and Technology Qingdao China
| | - Yuetao Liu
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
- Shandong eco Chemical Collaborative Innovation Center Qingdao University of Science and Technology Qingdao China
| | - Chuanhui Gao
- College of Chemical Engineering Qingdao University of Science and Technology Qingdao China
- Shandong eco Chemical Collaborative Innovation Center Qingdao University of Science and Technology Qingdao China
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Lin X, Wu Y, Fan S, Chen X, Liu Y, Liu X, Zheng W. Structural evolution and properties of polyamide‐6/poly(ether block amide) films during the simultaneous biaxial stretching. J Appl Polym Sci 2022. [DOI: 10.1002/app.52152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Xintu Lin
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou China
| | - Yincai Wu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou China
| | - Shuhong Fan
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou China
| | - Xi Chen
- Xiamen Changsu Industrial Company Limited Xiamen Fujian China
| | - Yuejun Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou China
| | - Xiaochao Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province School of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou China
| | - Wei Zheng
- Xiamen Changsu Industrial Company Limited Xiamen Fujian China
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