论文部分内容阅读
以2400tex的玻璃纤维为原料,在三维织机(SGA598型)上,采用深角联结构制备了一种三维五层深角联机织物。将环氧树脂E51和固化剂聚醚胺WHR-H023以质量比3∶1的比例组成树脂体系,并将配制好的树脂体系与深角联机织物以质量比为1∶1的比例进行手糊复合成型。借助万能材料试验机对材料的拉伸及弯曲性能进行测试;并通过扫描电子显微镜观察材料的断裂界面,以研究材料的破坏机理。结果表明:复合材料具有优良的力学性能,且材料的纬向力学性能明显好于经向;材料的破坏模式主要为脆性破坏,具体表现为树脂基体的碎裂,以及纤维的抽拔及断裂。
Using 2400tex glass fiber as raw material, a three-dimensional five-layer deep-angle woven fabric was prepared on the three-dimensional loom (SGA598 type) by using a deep corner joint structure. The epoxy resin E51 and the curing agent polyether amine WHR-H023 in a mass ratio of 3: 1 resin composition system, and the prepared resin system and the deep angle of the woven fabric in a mass ratio of 1: 1 hand paste Compound molding. Tensile and flexural properties of the material were tested with a universal material testing machine. The fracture interface of the material was observed by scanning electron microscopy to study the failure mechanism of the material. The results show that the composite has excellent mechanical properties and the weft mechanical properties of the material are obviously better than those of the meridional direction. The failure modes of the composites are mainly brittle failure, which is characterized by the fragmentation of the resin matrix and the extraction and fracture of the fibers.