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UV光固化玻璃纤维布/EP-PBMA树脂复合材料的力学性能

, PP. 1186-1191

Keywords: EP-PBMA树脂,UV光固化,加载速率,应变率效应,拉伸性能,复合材料

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Abstract:

设计了光热共引发环氧树脂-聚甲基丙烯酸丁酯(EP-PBMA)树脂,并制备了UV光固化玻璃纤维布增强EP-PBMA树脂基复合材料,研究了不同EP与PBMA质量比的玻璃纤维布/EP-PBMA复合材料在不同加载速率下的拉伸力学性能。结果表明:玻璃纤维布/EP-PBMA复合材料具有明显的应变率效应;随着加载速率增大,复合材料的拉伸强度和弹性模量呈增大趋势;EP-PBMA树脂基体的组成对应变率效应有明显的影响;玻璃纤维布/EP-PBMA复合材料与纯EP基复合材料相比,在较低的加载速率下具有更高的拉伸强度,但当加载速率达到50mm/min时拉伸强度较低。

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