摘要
采用偏光显微镜、旋转流变仪及毛细管流变仪等对用氢调法生产的高熔体流动速率(MFR)抗冲击共聚聚丙烯(PP)K9928H、进口同类PP及用可控流变法生产的PP K9928进行结构性能分析与评价。结果表明:K9928H的MFR接近或略低于进口同类PP,乙烯含量和乙丙橡胶含量高于进口同类PP,综合力学性能较好,外观、色泽正常,加工稳定性好;K9928H的重均分子量和相对分子质量分布(Mw/Mn)与进口同类PP接近,但其Mw/Mn大于K9928。
Properties and structure of impact copolymer polypropylene（PP）K9928H with high melt flow rate made via hydrogen as regulator,K9928 made via controllable rheological method and imported similar PP were analyzed and evaluated by polarized light microscope（PLM）,rotational rheometer and capillary rheometer and other equipments. The results show that the melt flow rate of K9928 H is close to or slightly lower than that of the imported similar PP,while the ethylene content and ethylene-propylene rubber content of K9928 H is higher than those of the imported similar PP. K9928 H has good mechanical properties,appearance and color and good processing stability. The weight average molecular mass and relative molecular mass distribution of K9928 H are close to those of the imported similar PP,but the relative molecular mass distribution of K9928 H is more than that of K9928.
出处
《合成树脂及塑料》
CAS
北大核心
2015年第2期56-60,共5页
China Synthetic Resin and Plastics
关键词
聚丙烯
高熔体流动速率
抗冲击共聚合
性能
polypropylene
high melt flow rate
impact copolymerization
property
