中国石化上海石油化工股份有限公司
中国石化上海石油化工股份有限公司-
对中国石化上海石油化工股份有限公司无规共聚聚丙烯（PP-R）管材专用树脂与进口产品在微观结构表征、结晶性能、流变性能、加工性能等方面进行了分析对比。
This paper analyzed and compared the microstructure , crystallizability , rheological property and processability of the random copolymer of propylene ( PP-R ) as speciality resin for pipes and its imported counterpart , the former was synthesized by Shanghai Petrochemical Company limited .