PA11含量对PA11/PP原位成纤复合材料性能的影响  

Effects of PA11 Contents on In-situ Fiberized PA11/PP Composite

作　　者：戚远慧 董珈豪 罗筑[1,2] 孙静[2] 韦良强[2] 

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

出　　处：《现代塑料加工应用》2015年第6期9-12,共4页Modern Plastics Processing and Applications

基　　金：贵州省省长基金(黔省专合字[2012]25号);贵州省国际科技合作计划(黔科合外G字[2013]7044)

摘　　要：用聚合物微纳叠层共挤装置制备聚酰胺11/聚丙烯(PA11/PP)原位成纤复合材料,研究PA11在复合材料中的形态以及复合材料熔融、结晶行为,并测试其介电性能与力学性能。结果表明:PA11在PP中较好地成纤并取向,微纤尺寸随PA11含量增加先增大后减小;复合材料结晶温度、结晶度随PA11含量增加先增大后减小;介电常数、介电损耗随PA11含量增加而增加;PA11质量分数为10%,复合片材沿挤出方向的拉伸强度提高了23.72%。In-situ fiberized composite of polyamide 11（PA11）/polypropylene（PP） was prepared by polymer micro-layered co-extrusion devices. The influence of PA11 contents on the morphology and sizes of PA11 in the composite was studied. Melting and crystalli- zation behavior,dielectric properties, tensile strength of the composite were observed. The results show that PA11 can form fine microfibers and orientate in PP matrix, and its size increases first and then decreases with the content of PA11 increasing. Both composite crystallization temperature and crystallinity increase first and then decrease with the increase of PA11. Both dielectric constant and dielectric loss of composite increase with the increase of PA11 when PA11 mass content is 10%, the tensile strength along the ex- trusion direction of composite sheet increases by 23.72%.

关 键 词：原位成纤 微纤形貌 熔融 结晶 介电性能 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]