铺层结构对PP/GMT片材孔隙含量和力学性能的影响  

INFLUENCE OF THE PLY SCHEME ON VOID CONTENT AND MECHANICAL PROPERTIES OF PP/GMT SHEETS

作　　者：路慧玲[1] 戴干策[1] 

机构地区：[1]华东理工大学聚合物加工研究室,上海200237

出　　处：《高分子材料科学与工程》2002年第1期37-39,43,共4页Polymer Materials Science & Engineering

基　　金：国家 8 6 3计划资助项目 (715 - 0 12 - 0 0 1- 2 );上海市汽车发展基金会资助课题

摘　　要：针对 PP/GMT材料 ,研究了铺层结构对片材孔隙含量和力学性能的影响。铺层结构的变化 ,可使弯曲性能和拉伸性能分别提高 2 5 %和 13%左右 ,而其抗冲击性能约下降 2 0 %。因而 ,改变铺层结构 ,可以调控材料的某些性能指标 。The effect of the ply scheme on void content and mechanical properties of PP/GMT sheets has been studied in detail. The flexural and tensile properties of sheets increase with the variation of the position of glass mat in sheets from the inner to the outer. The adjustable ranges of flexural and tensile properties are about 25% and 10% respectively, whereas the impact properties decrease with the variation of mat position. The drop scope is 20% or so. Under the same experiences, the void content in GMT sheets varies from 2.05% to 1.12% . To meet special needs in actual uses, adjusting the ply scheme of PP/GMT sheets is an effective way.

关 键 词：聚丙烯 GMT材料 玻璃纤维毡 增强 孔隙含量 力学性能 铺层结构 

分 类 号：TQ327.11[化学工程—合成树脂塑料工业]