PP/FKM发泡复合材料的制备与性能  

Preparation and Properties of PP/FKM Foamed Composites

作　　者：曹鲁帅 蒋团辉 刘卜金[1,2] 龚维 何力[1,2] Cao Lushuai;Jiang Tuanhui;Liu Bujin;Gong Wei;He Li(College of Materials and Metallurgy of Guizhou University,Guiyang,Guizhou,550025;National Engineering Research Center for Compounding and Modification of Polymer Materials,Guiyang,Guizhou,550014;School of Materials and Architectural Engineering of Guizhou Normal University,Guiyang,Guizhou,550025)

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [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 [3]贵州师范大学材料与建筑工程学院,贵州贵阳550025

出　　处：《现代塑料加工应用》2022年第4期1-4,共4页Modern Plastics Processing and Applications

基　　金：国家自然科学基金项目(51863300,52063008);贵州省市服务企业行动计划项目(黔科服企〔2018〕4010号);贵州省百强工程(〔2016〕5673号);贵州省基金重点项目(ZK〔2021〕050号,〔2019〕1176号);贵州省贵阳市科技攻关项目(〔2019〕14号)。

摘　　要：利用型腔体积可控注塑发泡装置制备了聚丙烯(PP)/氟橡胶(FKM)发泡复合材料,通过旋转流变仪、差示扫描量热仪(DSC)、扫描电子显微镜(SEM)等系统研究了FKM对PP发泡行为、热性能和力学性能的影响。结果表明:FKM的加入提高了PP的熔体强度,降低了其结晶度,且FKM均匀分散在PP基体中,起到了成核剂的作用,显著改善了PP的发泡性能。同时,PP的力学性能得到了提升。Polypropylene(PP)/fluororubber(FKM)foamed composites were prepared by injection molding foaming device with controllable cavity volume.The effects of FKM on foaming behavior,thermal properties and mechanical properties of PP were systematically studied by rotating rheometer,differential scanning calorimetry(DSC)and scanning electron microscope(SEM).The results show that the addition of FKM increases the melt strength of PP and reduces its crystallinity,and FKM is uniformly dispersed in PP matrix as a nucleating agent,which significantly improves the foaming properties of PP.At the same time,the mechanical properties of PP have been improved.

关 键 词：聚丙烯 氟橡胶 熔体强度 发泡行为 

分 类 号：TB332[一般工业技术—材料科学与工程]