文献类型：期刊文献

英文题名：Short glass fiber-reinforced polyamide 6,6 composites toughened with maleated SEBS

作者：Tjong, Sie Chin[1,4]; Xu, Shi-Ai[1,2]; Kwok-Yiu Li, Robert[1]; Mai, Yiu-Wing[3]

机构：[1]City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China;[2]E China Univ Sci & Technol, Inst Polymer Sci & Engn, Shanghai 200237, Peoples R China;[3]City Univ Hong Kong, Dept Mech & Mechatron Engn, Kowloon, Hong Kong, Peoples R China;[4]Univ Sydney, Sch Aerosp Mech & Mecatron Engn, CAMT, Sydney, NSW 2006, Australia

年份：2002

卷号：62

期号：15

起止页码：2017

外文期刊名：COMPOSITES SCIENCE AND TECHNOLOGY

收录：;EI(收录号：2002507273274);WOS:【SCI-EXPANDED(收录号:WOS:000179253500009)】；

语种：英文

外文关键词：polymer-matrix composites (PMCs); short-fiber composites; fracture toughness; mechanical properties; scanning electron microscopy (SEM)

摘要：Polyamide 6,6 hybrid composites toughened with maleated styrene-ethylene butylene-styrene (SEBS-g-MA) and reinforced with 5, 10, 15, 20 and 30% short glass fiber (SGF) were prepared. by melt blending and subsequent injection molding. The matrix blend of composites consisting of 80 wt.% PA6,6 and 20 wt.% SEBS-g-MA. The mechanical behavior and fracture resistance of the SGF/SEBS-g-MA/PA6,6 hybrid composites were investigated. Tensile test showed that the incorporation of SGF to the PA6,6/SEBS-gMA 80/20 blend improves both the tensile strength and stiffness substantially at the expense of its tensile ductility. The essential work of fracture (EWF) methodology was used to evaluate the fracture toughness of the hybrids. EWF measurements indicated that the SGF additions are beneficial in enhancing the specific essential work of fracture (w(e)) of the hybrids. The specific essential work of fracture appeared to increase with increasing fiber content up to 15%. It then decreased for the hybrids containing SGF content greater than or equal to20%. Overall, the w(e) value of hybrids was higher than that of the unreinforced PA6,6/SEBS-g-MA 80/20 blend. The correlation between the microstructure and the fracture resistance of the hybrids is discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.