文献类型：期刊文献

英文题名：Preparation and performance characteristics of short-glass-fiber/maleated styrene-ethylene-butylene-styrene/polypropylene hybrid composites

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

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]Univ Sydney, Ctr Adv Mat Technol, Sydney, NSW 2006, Australia;[4]City Univ Hong Kong, Dept Mfg Engn & Engn Management, Kowloon, Hong Kong, Peoples R China

年份：2002

卷号：86

期号：5

起止页码：1303

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：2002397103683);WOS:【SCI-EXPANDED(收录号:WOS:000177612200034)】；

语种：英文

外文关键词：polypropylene (PP); fibers; compatibility; elastomers

摘要：Eighty/twenty polypropylene (PP)/styreneethylene-butylene-styrene (SEBS) and 80/20 PP/maleated styrene-ethylene-butylene-styrene (SEBS-g-MA) blends reinforced with 30 wt % short glass fibers (SGFs) were prepared by extrusion and subsequent injection molding. The influence of the maleic anhydride (MA) functional group grafted to SEBS on the properties of SGF/SEBS/PP hybrid composites was studied. Tensile and impact tests showed that the SEBS-g-MA copolymer improved the yield strength and impact toughness of the hybrid composites. Extensive plastic deformation occurred at the matrix interface layer next to the fibers of the SGF/SEBS-g-MA/PP composites during impact testing. This was attributed to the MA functional group, which enhanced the adhesion between SEBS and SGR Differential scanning calorimetry measurements indicated that SEBS promoted the crystallization of PP spherulites by acting as active nucleation sites. However, the MA functional group grafted to SEBS retarded the crystallization of PP. Finally, polarized optical microscopy observations confirmed the absence of transcrystallinity at the glass-fiber surfaces of both SGF/SEBS/PP and SGF/SEBS-g-MA/PP hybrid composites. (C) 2002 Wiley Periodicals, Inc.