Interfacial enhancement of carbon fiber composites by poly(amido amine) functionalization

被引：174

作者：

Peng, Qingyu ^{[1
]}

Li, Yibin ^{[1
]}

He, Xiaodong ^{[1
]}

Lv, Hongzhen ^{[1
]}

Hu, Pingan ^{[2
]}

Shang, Yuanyuan ^{[1
]}

Wang, Chao ^{[1
]}

Wang, Rongguo ^{[1
]}

Sritharan, Thirumany ^{[3
]}

Du, Shanyi ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Composite Mat & Struct, Harbin 150080, Peoples R China

[2] Harbin Inst Technol, Res Ctr Micro Nanotechnol, Harbin 150080, Peoples R China

[3] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2013年 / 74卷

基金：

中国国家自然科学基金;

关键词：

Polymer-matrix composites (PMCs); Carbon fiber; Fibre/matrix bond; Interfacial strength; Photoelectron spectroscopy (XPS); EPOXY COMPOSITES; NANOTUBES; SURFACE; ACID; TETRAETHYLENEPENTAMINE; POLYMERS; COATINGS; ADHESION;

D O I：

10.1016/j.compscitech.2012.10.005

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

Carbon fiber reinforced composites have stimulated increasing attention due to their excellent mechanical properties. However, the interface tends to be weak because carbon fiber does not naturally have a good wettability and adsorption with most polymers matrix, which could not effectively transfer the load from the matrix to the fibers. Here we proposed to chemically functionalize carbon fiber (CF) by poly(amido amine) (PAMAM), which has more concentration of amino groups than traditional coupling agents. The chemical bond formation between acid-treated CF and PAMAM was confirmed. The PAMAM functionalization did not change the surface morphology while significantly increased the wettability of CF surface. The interfacial shear strength has an increase of 85% compared to that without functionalization. The interfacial enhancement mechanism was also explored in details. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：37 / 42

页数：6

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