插层型蒙脱土/聚丙烯复合材料辐射交联行为的研究  

Radiation cross-linking of montmorillnite/polypropylene composite

作　　者：王永常 范宏[2] 毛咏甬 董凯 

机构地区：[1]浙江省能源与核技术应用研究院,杭州310012 [2]浙江大学化学工程联合国家重点实验室,杭州310027

出　　处：《辐射研究与辐射工艺学报》2011年第6期345-348,共4页Journal of Radiation Research and Radiation Processing

基　　金：浙江省科技计划项目(2005F12G5330001)资助

摘　　要：采用熔融共混法制备了聚丙烯(Polypropylene,PP)/蒙脱土预辐射复合材料,通过X射线衍射(X-raydeffraction,XRD)和透射电子显微镜(Transmission electron microscope,TEM)对复合材料中蒙脱土的分散状态进行了表征,在空气氛围下利用电子束辐照对复合材料进行辐照交联,研究了交联剂在辐照中起的作用和蒙脱土对辐照交联的影响。结果表明:没有加入交联剂的PP不能交联,在PP中加入了蒙脱土以后,在一定的辐照剂量下可以促进PP的交联,含有蒙脱土PP交联体系的力学性能得到大幅度提高。Polypropylene/montmorillonite composite was prepared via melt compounding process. The dispersion of montmorillonite in the composite was analized by XRD （X-ray deffraction） and TEM （Transmission electron microscope）. Electronic radiation was applied to make the composite radiation closs-linked in air. The effect of cross-linking agent and montmorillnite on the properties of polypropylene cross-linking was studied. The results indicated that cross-linking did not take place in absence of cross-linking agent, while in presence of both cross-linking agent and montmorillonite polypropylene cross-linking occurred in certain absorbed dose range. The cross-linked polypropylene/momtmorillnite composite exhibited improved mechanical properties.

关 键 词：聚丙烯 蒙脱土 辐照交联 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业] TQ316.6