阻隔性树脂对聚丙烯/滑石粉体系热氧老化性能的影响  

The Effect of Barrier Resin on the Thermal Oxidation Aging Properties of Polypropylene/Talc Blend

作　　者：苏娟霞 杨波 林洁龙 彭莉 赖昂 罗忠富 SU Juan-xia;YANG Bo;LIN Jie-long;PENG Li;LAI Ang;LUO Zhong-fu(Tech.Center of Kingfa Sci.&Tech.Co.,Ltd,Guangzhou 510662,Guangdong,China)

机构地区：[1]金发科技股份有限公司企业技术中心,广东广州510662

出　　处：《合成材料老化与应用》2020年第4期8-11,共4页Synthetic Materials Aging and Application

摘　　要：实验考察了不同阻隔树脂PA、EVOH、聚酮在不同添加量下对聚丙烯/滑石粉体系热老化性能的影响。结果表明,加入PA体系老化性能下降,加入EVOH体系老化性能变化不大,加入聚酮能明显改善体系的老化性能。红外测试结果表明,聚丙烯样板表面发生的是有氧气参与的热氧降解,粉化层下的里层发生的是热降解。通过粉化层厚度的测试发现,聚酮的加入明显降低了初始氧化层厚度,从0.2mm降低到0.1mm左右,从而提高了体系的耐老化性能。The thermal oxidation aging properties of polypropylene(PP)/talc blends was studied by adding different kinds of barrier resistance resin PA, EVOH and polyketone with different content. The research displays that the blends,aging properties decrease with the use of PA, change a little with the use of EVOH, and increase much with the use of polyketone. The FTIR results display that the surface of the sample experiences a thermo-oxidative degradation progress and the inner layer below the chalked surface experiences a thermal degradation progress. According to the test results of the oxidation layer thickness, the addition of polyketone decrease the initial oxidation layer thickness of the sample, from 0.2 mm to about 0.1 mm,resulting an improvement of the aging resistance property of the blends.

关 键 词：聚丙烯 阻隔 热氧老化 

分 类 号：TQ325[化学工程—合成树脂塑料工业]