Regulating interfacial compatibility with amino silane and bio-inspired polydopamine for high-performance epoxy composites

被引：33
作者：
Li, Song [1 ,2 ]
Li, Xiao [1 ,2 ]
Shao, Mingchao [1 ,2 ]
Yang, Jingling [1 ,2 ]
Wang, Qihua [1 ,2 ]
Wang, Tingmei [1 ,2 ]
Zhang, Xinrui [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Gansu, Peoples R China
[2] Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
来源：
TRIBOLOGY INTERNATIONAL | 2019年 / 140卷
基金：
中国国家自然科学基金;
关键词：
Interfacial compatibility; Friction; Wear; Surface modification; MECHANICAL-PROPERTIES; SURFACE MODIFICATION; CARBON-FIBER; FUNCTIONALIZED GRAPHENE; ULTRAVIOLET-RADIATION; WEAR PROPERTIES; ARAMID FIBERS; STRENGTH; FRICTION; OXIDE;
D O I：
10.1016/j.triboint.2019.105861
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The poor interfacial compatibility between functional fillers and matrix greatly restricts development of polymer composites. Therefore, in the present paper, carbon fibers (CFs) were modified by biomimetic polydopamine (PDA) and amino silane (KH550) to improve interfacial bonding strength with epoxy (EP) substrate. The grafting of PDA and KH550 was divided into "PDA", "PDA-KH550" and "(PDA + KH550)" methods for regulating interfacial compatibility and exploring the reaction mechanism. Improved interfacial strength was beneficial to transfer stress from the matrix to fillers. Consequently, mechanical properties of modified CF/EP were obviously superior to those of unmodified EP/CF. Besides, wear resistance of EP/CF-(PDA + KH550) had an increase of 76%, 67%, 60% and 49% compared to that of EP, CF/EP, CF-PDA/EP and EP/CF-PDA-KH550.
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页数：9
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