关键词: 三维浅交弯联, 环氧树脂, 聚醚胺, 拉伸性能, 弯曲性能, 破坏断面

Abstract: Two different structure of 3D curved shallow-crossing linking woven fabric with 3 and 6 layers was prepared using glass fiber with the linear density of 2400tex as raw material on a 3D loom modeled SGA598. Two piece of 3 layers 3D curved shallow-crossing linking woven fabric were stacked to keep the same layers with the other one. The 3D curved shallow-crossing linking weaving composite applying in armored car interior was successfully prepared by hand composite modeling curved shallow-crossing linking woven fabric and resin system which was composed of epoxy resin and polyether amine in a mass ratio of 3∶1, in the mass ratio of 1∶1. Universal material testing machine modeled Instron 3385H was employed to characterize the stretch and bending property of the composite. Test procedure and destroy section were observed in order to compare composites mechanical property. Result shows that the composites expressed brittle failure when it bear stretch and bending load; 6 layers 3D curved shallow-crossing linking weaving composite has better mechanical property than 3 layers 3D curved shallow-crossing linking weaving composite; and 6 layers 3D weaving composite is protected better and the service life is extended.

Key words: 3D curved shallow-crossing linking, epoxy resin, PET, stretch property, bending property, destroy section