EPDM-g-GMA对PP/滑石粉复合体系性能影响  

Effect of EPDM-g-GMA on Properties of PP/Talc Composites

作　　者：于国健[1] 冯钠[1] 张延大 徐静[1] 李季[1] 

机构地区：[1]大连工业大学纺织与材料工程学院,辽宁大连116034 [2]大连环球矿产有限公司,辽宁大连116034

出　　处：《现代塑料加工应用》2013年第6期19-21,共3页Modern Plastics Processing and Applications

摘　　要：以三元乙丙橡胶接枝甲基丙烯酸缩水甘油酯(EPDM-g-GMA)为大分子界面改性剂,制备了聚丙烯(PP)/滑石粉复合体系。力学性能分析表明,随着EPDM-g-GMA用量的增加,体系冲击强度显著提高,拉伸强度小幅下降,当EPDM-gGMA质量分数为10%时,综合力学性能最佳;扫描电子显微镜(SEM)分析表明,EPDM-g-GMA的加入提高了滑石粉分散能力,体系界面结合效果改善;动态力学性能(DMA)分析表明,EPDM-g-GMA使体系储能模量降低,损耗因子(tanδ)提高;流动性能分析表明,EPDM-g-GMA未改变体系假塑性特征,改性后体系剪切黏度有所提高。PP/talc composites were prepared with EPDM-g-GMA as the macromole- cule interfacial modifier. Mechanical analysis show that with the increase of the amount of EPDM-g-GMA, the impact strength significantly increases and the tensile strength decreases slightly. The general performance is the best when the mass ratio is 10%. The SEM analysis show that the dispersion ability of talc increases with EPDM-g-GMA and the interface bonding is better. The DMA analysis show that the storage modulus decrease, and tang increases. Flow performance analysis show that after adding EPDM- g-GMA, the composites are still pseudoplastic and the shear stress increases.

关 键 词：三元乙丙橡胶接枝甲基丙烯酸缩水甘油酯 大分子界面改性剂 聚丙烯 滑石粉 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ320.1[化学工程—合成树脂塑料工业]