玻璃纤维增强微孔发泡聚丙烯  

The Micro-Foamed Polypropylene Reinforced by the Glassfiber

作　　者：蒋团辉[1,2] 朱建华[2] 李良[2] 何力[2] 

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《塑料》2009年第4期25-26,38,共3页Plastics

基　　金：国家重点基础研究发展计划(2007CB616912);贵州省优秀人才省长基金项目(200887)

摘　　要：采用经表面改性的玻璃纤维（GF）增强微孔发泡聚丙烯材料。结果表明：GF与微孔结构间存在明显的协同增强效应，GF质量含量在17％以上时，微孔发泡PP的拉伸强度和弯曲强度获得显著提高，而冲击强度降低。长径比为13：3的GF相对于长径比10：3的GF对微孔发泡聚丙烯弯曲强度的增强效果要好。微观SEM观察可知，GF的加入不会导致材料内部泡孔变形，泡孔尺寸在30～40um。The modified glassfibre（GF） was used to reinforce the micro-foamed polypropylene（PP）. The results showed obviously that the GF and micro-pore exiting in the PP had the co-strengthened effect on the PP. The tensile and flexural strength increased with the increasing content of the GF and enhanced rapidly as the content of GF was above 17 % ,and the notch impact strength decreased. The GF with the slenderness ratio of 13：3 had the larger flexural strength than the GF with the slenderness ratio of 10： 3. The SEM observation showed that the addition of the GF couldnt lead to the deformation of the micropore in the PP and the size of the micro-pore ranged from 30 um to 40 um.

关 键 词：微孔发泡 聚丙烯 注塑成型 玻璃纤维 增强 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]