Polyamide 6 composite with highly improved mechanical properties by PEI-CNT grafted glass fibers through interface wetting, infiltration and crystallization 机翻标题: 暂无翻译,请尝试点击翻译按钮。

来源
Polymer: The International Journal for the Science and Technology of Polymers
年/卷/期
2019 / 172 /
页码
253-264
ISSN号
0032-3861
作者单位
East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Minist Educ,Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Minist Educ,Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Minist Educ,Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;
作者
Fang, Jianpeng;Zhang, Ling;Li, Chunzhong;
摘要
Interfacial properties of fiber reinforced polyamide 6 (PA6) composites are important to their mechanical behaviors. In this work, polyethyleneimine (PEI) functionalized carboxylic multi-walled carbon nanotubes (PEI-CNT) were grafted onto the surface of glass fibers (PEI-CNT-GF) to reinforce PA6 by improving interfacial properties. The PEI-CNT containing plenty of active groups formed a compact and homogeneous network structure on the fiber surface. The network structure and high surface reactivity were beneficial to better interfacial performance which improved the mechanical properties of glass fibers reinforced PA6 composite. Results of DSC and POM illustrated that the PEI-CNT-GF could induce the PA6 transcrystallization (TC) along the fiber surface, which strengthened the physical connection at the interface. The tensile and flexural strength of PA6/PEI-CNT-GF composite were about 7% higher than those of PA6/raw GF. This study provides a feasible method for interfacial modification in glass fibers reinforced PA6 composites and it may be applicable to other thermoplastic composite systems.
机翻摘要
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关键词/主题词
Polyethyleneimine;Carboxylic multi-walled carbon nanotubes;Glass fibers;Polyamide 6;Interfacial properties;
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