茂金属线型低密度聚乙烯结构分析  

Analysis Structure of Metallocene Linear Low Density Polyethylene

作　　者：国海峰 李艳[2] 姜进宪 

机构地区：[1]中国石油石油化工研究院大庆化工研究中心,黑龙江大庆163714 [2]中国石油大庆油田工程有限公司,黑龙江大庆163712

出　　处：《塑料》2016年第2期81-83,共3页Plastics

摘　　要：以自主研发的茂金属线型低密度聚乙烯(m LLDPE)产品m LLDPE-1为目标产品,选择典型的同类进口产品m LLDPE-2,对2种产品的微观结构及产品性能进行对比分析。结果表明:m LLDPE-1与m LLDPE-2相对分子质量及其分布相当,共聚单体在分子链上基本都是孤立存在的,均显示出交替共聚倾向;但m LLDPE-1的共聚单体在分子链上的分布与m LLDPE-2存在差异,这种差异导致m LLDPE-1产品冲击性能优于m LLDPE-2,拉伸性能及撕裂性能略差。Two kinds of metallocene linear low density polyethylene resins with the same type were analysised on the structure and properties. Two resins were independent development products and typical imports products which was named as mLLDPE-1 and mLLDPE-2 respectively. The results showed that the relative molecular mass and molecular mass distribution of the two metalloeene resins was similar. The comonomers were all isolated on the molecular chain, tend to display alternating copolymerization, but the comonomer distribution was different, which caused mLLDPE-1 showed more excellent impact resistance properties, but the tensile and tear properties was slightly lower than mLLDPE-2.

关 键 词：茂金属线型低密度聚乙烯 序列分布 分子链结构 结晶 相对分子质量 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]