Investigations on mechanical characteristics of glass fiber reinforced epoxy composite modified with amino-terminated hyperbranched polymer |
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| Authors: | Shuiping Li Qing Lin Huajun Zhu Chong Cui Haijun Hou Tingting Lv Yanbo Li |
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| Institution: | 1.School of Materials Engineering,Yancheng Institute of Technology,Jiangsu,P. R. China;2.College of Materials Science and Engineering,Nanjing University of Science and Technology,Jiangsu,P. R. China;3.College of Materials Engineering,Jinling Institute of Technology,Jiangsu,P. R. China |
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| Abstract: | Glass fiber, GF, which was first hydroxylated and silanized, was incorporated into epoxy resin modified with amino-terminated hyperbranched polymer (ATHBP) to obtain high performance composite. The effects of GFs content on the mechanical properties of composites were investigated, discussing the results from flexural, tensile, and impact tests. The composites revealed noticeable improvement in flexural strength, tensile strength as well as impact strength but slow decrease in elongation at break, compared to the epoxy/ATHBP thermoset. FESEM morphology results indicated the good compatibility between epoxy matrix and GF in the appearance of ATHBP and showed that the toughening mechanism was mainly attributed to the stress transfer mechanism. |
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