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Fabrication of Nylon 6-Montmorillonite Clay Nanocomposites with Enhanced Structural and Mechanical Properties by Solution Compounding. Polymers (Basel) 2022; 14:polym14214471. [PMID: 36365466 PMCID: PMC9658336 DOI: 10.3390/polym14214471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 03/14/2023] Open
Abstract
Melt compounding has been favored by researchers for producing nylon 6/montmorillonite clay nanocomposites. It was reported that high compatibility between the clay and the nylon6 matrix is essential for producing exfoliated and well-dispersed clay particles within the nylon6 matrix. Though solution compounding represents an alternative preparation method, reported research for its use for the preparation of nylon 6/montmorillonite clay is limited. In the present work, solution compounding was used to prepare nylon6/montmorillonite clays and was found to produce exfoliated nylon 6/montmorillonite nanocomposites, for both organically modified clays with known compatibility with nylon 6 (Cloisite 30B) and clays with low/no compatibility with nylon 6 (Cloisite 15A and Na+-MMT), though to a lower extent. Additionally, solution compounding was found to produce the more stable α crystal structure for both blank nylon6 and nylon6/montmorillonite clays. The process was found to enhance the matrix crystallinity of blank nylon6 samples from 36 to 58%. The resulting composites were found to possess comparable mechanical properties to similar composites produced by melt blending.
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2
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An Efficient Composite Modifier Prepared for Enhancing the Crystallization and Flame-Retardancy of Poly(m-xylylene adipamide). Polymers (Basel) 2022; 14:polym14173626. [PMID: 36080701 PMCID: PMC9460067 DOI: 10.3390/polym14173626] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/29/2022] [Accepted: 08/30/2022] [Indexed: 11/16/2022] Open
Abstract
Poly(m-xylylene adipamide) (MXD6) has good gas barrier properties and high mechanical strength. However, in nature, this resin has a low rate of crystallization. In order to overcome this obstacle in its applications, this study prepares a new, efficient modifier for MXD6 by combining the synthesized DOPO derivative (DT) and P22. It is found that the use of the binary modifier exhibits obvious effects on the crystallization of MXD6. When 11.0 wt.% DT is added together with 0.1 wt.% P22 (DT/P22), the crystallization temperature of MXD6 shifts to a higher temperature of 19.7 °C, and the crystallinity degree of MXD6 is significantly increased by 60%. Meanwhile, this modifier exhibits obviously intumescent flame-retardancy on MXD6 by increasing the limited oxygen index (LOI) from 26.4% to 33.4%. The results of the cone calorimeter test (CCT) reveal that the peak heat release rate (PHRR), total heat release (THR) and average effective heat release (av-EHC) are obviously suppressed due to the use of this modifier. Moreover, the influences of this modifier on the crystal structures, mechanical and rheological properties of MXD6 are analyzed in detail. This study can provide an efficient modifier for MXD6.
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Yamanaka M, Muraya T, Oda T, Saegusa N, Watanabe R, Hagihara H. Amorphous polyamide
m
‐xylylenediamine‐adipic acid‐isophthalic acid copolymer
(MXD6I)
: Evaluation of oxygen barrier property and free volume in high humidity condition. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Masaki Yamanaka
- Hiratsuka Research Laboratory Mitsubishi Gas Chemical Company, Inc. Hiratsuka Kanagawa Japan
| | - Takahiro Muraya
- Hiratsuka Research Laboratory Mitsubishi Gas Chemical Company, Inc. Hiratsuka Kanagawa Japan
| | - Takahumi Oda
- Hiratsuka Research Laboratory Mitsubishi Gas Chemical Company, Inc. Hiratsuka Kanagawa Japan
| | - Nobuya Saegusa
- Hiratsuka Research Laboratory Mitsubishi Gas Chemical Company, Inc. Hiratsuka Kanagawa Japan
| | - Ryota Watanabe
- Research Institute for Sustainable Chemistry National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Ibaraki Japan
| | - Hideaki Hagihara
- Research Institute for Sustainable Chemistry National Institute of Advanced Industrial Science and Technology (AIST) Tsukuba Ibaraki Japan
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4
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Lin F, Liu Y, Song L, Hao X, Liu X, Fan S, Wu Y, Mao L. Preparation of biaxially oriented polyamide 6/polyketone/graphene oxide films with enhanced barrier and mechanical behaviors. J Appl Polym Sci 2021. [DOI: 10.1002/app.50501] [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)
- Fenglong Lin
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province Hunan University of Technology Zhuzhou China
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen China
| | - Yuejun Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province Hunan University of Technology Zhuzhou China
| | - Lijun Song
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou China
| | - Xihai Hao
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province Hunan University of Technology Zhuzhou China
| | - Xiaochao Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province Hunan University of Technology Zhuzhou China
| | - Shuhong Fan
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province Hunan University of Technology Zhuzhou China
| | - Yincai Wu
- Xiamen Institute of Rare Earth Materials, Chinese Academy of Sciences Xiamen China
| | - Long Mao
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province Hunan University of Technology Zhuzhou China
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5
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Fabrication of Carbon Fiber Reinforced Aromatic Polyamide Composites and Their Thermal Conductivities with a h-BN Filler. Polymers (Basel) 2020; 13:polym13010021. [PMID: 33374700 PMCID: PMC7793483 DOI: 10.3390/polym13010021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 11/16/2022] Open
Abstract
In this study, a carbon fiber-reinforced thermoplastic composite was fabricated using a new aromatic polyamide (APA) as a matrix. Non-isothermal crystallization behaviors in the cooling process of APA resin (a semi-crystalline polymer) and composite were analyzed by using a differential scanning calorimeter (DSC). To determine the optimum molding conditions, processing parameters such as the molding temperature and time were varied during compression molding of the Carbon/APA composite. The tensile and flexural properties and morphologies of the fabricated composites were analyzed. Molding at 270 °C and 50 MPa for 5 min. showed relatively good mechanical properties and morphologies; thus, this condition was selected as the optimal molding condition. In addition, to enhance the thermal conductivity of the Carbon/APA composite, a study was conducted to add hexagonal boron nitride (h-BN) as a filler. The surface of h-BN was oxidized to increase its miscibility in the resin, which resulted in better dispersity in the APA matrix. In conclusion, a Carbon/APA (h-BN) composite manufactured under optimal molding conditions with an APA resin containing surface-treated h-BN showed a thermal conductivity more than twice that of the case without h-BN.
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6
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Lin F, Hao X, Liu Y, Song L, Liu X, Fan S, Liao G. The linear tearing properties of biaxially oriented PA6/MXD6 blending films. J Appl Polym Sci 2020. [DOI: 10.1002/app.49108] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fenglong Lin
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan ProvinceHunan University of Technology Zhuzhou China
- Xiamen Institute of Rare Earth MaterialsChinese Academy of Sciences Xiamen China
| | - Xihai Hao
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan ProvinceHunan University of Technology Zhuzhou China
| | - Yuejun Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan ProvinceHunan University of Technology Zhuzhou China
| | - Lijun Song
- Xiamen Institute of Rare Earth MaterialsChinese Academy of Sciences Xiamen China
- Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences Fuzhou China
| | - Xiaochao Liu
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan ProvinceHunan University of Technology Zhuzhou China
| | - Shuhong Fan
- Key Laboratory of Advanced Packaging Materials and Technology of Hunan ProvinceHunan University of Technology Zhuzhou China
| | - Guihe Liao
- Xiamen Changsu Industrial Co., Ltd. Xiamen China
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8
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Messin T, Marais S, Follain N, Chappey C, Guinault A, Miquelard-Garnier G, Delpouve N, Gaucher V, Sollogoub C. Impact of water and thermal induced crystallizations in a PC/MXD6 multilayer film on barrier properties. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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9
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Jia L, Su G, Yuan Q, Zhang X, Zhou T. Difference in the micro-dynamics mechanism between aromatic nylon and aliphatic nylon during water absorption: spectroscopic evidence. Phys Chem Chem Phys 2018; 20:26764-26776. [DOI: 10.1039/c8cp05432k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The difference in the micro-dynamics mechanism between aromatic nylon and aliphatic nylon during water absorption was studied to explore the reason for the significantly smaller decline of barrier performance of poly(m-xylene adipamide) (MXD6) film than that of polyamide 6 (PA6) film under high humidity.
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Affiliation(s)
- Liyang Jia
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
| | - Gehong Su
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
| | - Qiang Yuan
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
| | - Xueqian Zhang
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
| | - Tao Zhou
- State Key Laboratory of Polymer Materials Engineering of China
- Polymer Research Institute
- Sichuan University
- Chengdu 610065
- China
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11
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Bi F, Shao J, Xi Z, Zhao L, Liu D. Synthesis and characterization of copolymers of poly(m-xylylene adipamide) and poly(ethylene terephthalate) oligomers by melt copolycondensation. Chin J Chem Eng 2016. [DOI: 10.1016/j.cjche.2016.04.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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12
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Effects of electrically inert fillers on the properties of poly(m-xylene adipamide)/multiwalled carbon nanotube composites. CHINESE JOURNAL OF POLYMER SCIENCE 2016. [DOI: 10.1007/s10118-016-1821-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Influence of high pressures on CH4, CO2 and H2S solubility in polyethylene: Experimental and molecular simulation approaches for pure gas and gas mixtures. Modelling of the sorption isotherms. J Memb Sci 2015. [DOI: 10.1016/j.memsci.2015.04.040] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Fereydoon M, Tabatabaei SH, Ajji A. Effect of uniaxial stretching on thermal, oxygen barrier, and mechanical properties of polyamide 6 and poly(m-xylene adipamide) nanocomposite films. POLYM ENG SCI 2014. [DOI: 10.1002/pen.23982] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maryam Fereydoon
- Chemical Engineering Department; 3SPack NSERC-Industry Chair, CREPEC, Polytechnique Montreal; C.P. 6079, Succ. Centre ville Montreal QC Canada H3C 3A7
| | - Seyed H. Tabatabaei
- Chemical Engineering Department; 3SPack NSERC-Industry Chair, CREPEC, Polytechnique Montreal; C.P. 6079, Succ. Centre ville Montreal QC Canada H3C 3A7
| | - Abdellah Ajji
- Chemical Engineering Department; 3SPack NSERC-Industry Chair, CREPEC, Polytechnique Montreal; C.P. 6079, Succ. Centre ville Montreal QC Canada H3C 3A7
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15
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Fereydoon M, Tabatabaei SH, Ajji A. X-ray and Trichroic Infrared Orientation Analyses of Uniaxially Stretched PA6 and MXD6 Nanoclay Composite Films. Macromolecules 2014. [DOI: 10.1021/ma402466c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Maryam Fereydoon
- 3SPack
NSERC-Industry Chair,
Chemical Engineering Department, Polytechnique Montreal, C.P. 6079,
Succ. Centre ville, Montreal, QC, H3C 3A7, Canada
| | - Seyed H. Tabatabaei
- 3SPack
NSERC-Industry Chair,
Chemical Engineering Department, Polytechnique Montreal, C.P. 6079,
Succ. Centre ville, Montreal, QC, H3C 3A7, Canada
| | - Abdellah Ajji
- 3SPack
NSERC-Industry Chair,
Chemical Engineering Department, Polytechnique Montreal, C.P. 6079,
Succ. Centre ville, Montreal, QC, H3C 3A7, Canada
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