纳米EVMT改性聚丙烯薄膜力学性能和阻隔性能的影响  

Effect of Mechanical and Barrier Properties of Polypropylene Film Through Modified Nano-scale EVMT

作　　者：刘青[1] 李东立[1] 廖瑞娟[1] 石佳子 

机构地区：[1]北京印刷学院印刷包装材料与技术北京市重点实验室,北京102600

出　　处：《绿色科技》2015年第5期265-268,共4页Journal of Green Science and Technology

基　　金：国家自然科学基金(编号:31471653)资助

摘　　要：采用自制的纳米蛭石改性剂对聚丙烯进行了改性,并对其拉伸性能、穿刺性能等物理力学性能、阻隔性能及热稳定性进行了测试。实验结果表明:改性剂可以明显提高聚丙烯的力学性能,当EVMT的含量达到2%时,其穿刺性能提高了500%;同时随着EVMT含量的增加,改性聚丙烯材料对氧气的阻隔性能显著提高,但透湿能力有多降低;当改性剂含量小于1%时,热稳定性随改性剂的含量增加而增加。The article adopts the self-made nano vermiculite to modify the characteristics of polypropylene and tests lhe mechanical propcrlies which include tensile property and puncture resistance, barrier property and thermal slahility. The experimental results show that tile modifying agent can significantly improve the mechanical properties of polypropylene;when the content of EVMT reaches 2%,its puncture resistance increases by 50%;al the same time.with tile increasing content of EVAT,the puncture resistance of modified polypropylene to oxygen also increases while the moisture permeable ability declines; when the content of modifying agent is less than 1%,the thermal stability increases with the increase of the content of modifier.

关 键 词：蛭石 力学性能 阻隔性 热稳定性 

分 类 号：TQ325.1[化学工程—合成树脂塑料工业]