聚烯烃弹性体性能及结构对比分析  

Comparative Analysis of Properties and Structures of Polyolefin Elastomers

作　　者：王立娟[1] 王焱鹏[2] 王文燕[1] Wang Lijuan;Wang Yanpeng;Wang Wenyan(Daqing Chemical Research Center of Petrochemical Research Institute, PetroChina, Daqing,Heilongjiang,163714;Daqing Petrochemical Co., PetroChina,Daqing,Heilongjiang,163714)

机构地区：[1]中国石油天然气股份有限公司石油化工研究院大庆化工研究中心,黑龙江大庆163714 [2]中国石油天然气股份有限公司大庆石化分公司,黑龙江大庆163714

出　　处：《现代塑料加工应用》2021年第2期34-36,共3页Modern Plastics Processing and Applications

摘　　要：对比分析了2种进口牌号聚烯烃弹性体(POE)产品(POE-A,POE-B)及自制产品(POE-C)的物理性能及分子结构。结果表明:3种产品的熔体流动速率、密度较为接近,POE-A拉伸断裂标称应变相对较高,硬度较低。3种产品相对分子质量分布均较窄,具有大量的无定形态结构,但仍然存在一定量的结晶结构;POE-A采用辛烯为共聚单体,POE-B及自制产品采用丁烯为共聚单体,共聚单体含量较高,支化度大于20/1000C。The physical properties and molecular structures of two imported polypropylene elastomer(POE)products(POE-A,POE-B)and self-made POE-C were compared and analyzed.The results show that the melt flow rate and density of the three products are close,and the nominal strain of POE-A tensile fracture is relatively high,and its hardness is relatively low.The molecular weight distribution of the three products is narrow with a large number of amorphous structures,but there is still a certain amount of crystal structure;POE-A uses octene as comonomer,and POE-B and POE-C use butene as comonomer,the comonomer content is high,and the degree of branching is more than 20/1000C.

关 键 词：聚烯烃弹性体 物理性能 分子结构 改性 

分 类 号：TQ3[化学工程]