PP-g-MA和UP增容PP/玻璃纤维复合材料性能的研究  

Research on Properties of PP-g-MA and Unsaturated Polyester Compatibilized PP/Glass Fibre Composites

作　　者：李庆丰[1,2] 郭建兵[2] 于杰[1,2] 薛斌[2] 何敏[2] 秦舒浩[2] 

机构地区：[1]贵族大学材料与冶金学院,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：《塑料科技》2011年第9期57-60,共4页Plastics Science and Technology

基　　金：贵州省工业攻关项目(黔科合GY字编号:20083005)

摘　　要：以聚丙烯-马来酸酐接枝(物PP-g-MA)和不饱和聚(酯UP)作为界面相容剂,研究了界面相容剂对玻璃纤维增强PP复合材料力学性能及界面黏结的影响。结果表明:加入PP-g-MA或UP,玻璃纤维增强PP复合材料的力学性能明显提高,且UP的增容效果优于PP-g-MA。在玻璃纤维含量为40%时,PP/UP/GF复合材料的拉伸强度比未改性的复合材料的拉伸强度提高了150%,弯曲强度提高了132%,冲击强度提高了89%;扫描电镜照片表明:PP-g-MA和UP使被拔出玻璃纤维表面黏附了一层树脂,增强了PP与玻璃纤维之间的界面黏结作用;DSC测试表明:PP-g-MA和UP同时加入使复合材料熔融峰温度下降结,晶度增加。Using polypropylene-maleic anhydride copolymer（PP-g-MA） and unsaturated polyester（UP） as compatibilizers,and theirs effects on the mechanical properties and interfacial adhesion of the composites reinforced by high strength fiber were studied.The results show that： the compatibility of PP/glass fiber composites improves with the addition of PP-g-MA and UP,and then the compatibilization effect of UP is better than that of PP-g-MA.When the content of glass fiber is 40%,the tensile strength of the PP/UP/GF composites increases by 150%,which compared with that of unmodified composites,the flexural strength increases by 132%,and then the impact strength increases by 89%.The results of SEM show that the surface of glass fibre extracted from PP coats with a layer of resin after filling PP-g-MA and UP into composites,it means the interfacial adhesion is improved.The DSC results show that the melt temperature decreases and the degree of crystallization of the composite increases when adding PP-g-MA and UP simultaneously into composites.

关 键 词：聚丙烯 增容 不饱和聚酯 聚丙烯-马来酸酐接技物 玻璃纤维 

分 类 号：TQ327.1[化学工程—合成树脂塑料工业]