双向拉伸聚丙烯薄膜原料的生产优化及产品性能  

Operation optimization of product properties of biaxial oriented polypropylene resin

作　　者：于国滨[1,2] 李贵贤[1] 范宗良[1] 竺栋荣 

机构地区：[1]兰州理工大学化工学院,甘肃兰州730050 [2]中国石油兰州石化公司聚烯烃事业部,甘肃兰州730060 [3]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《石化技术与应用》2009年第3期256-258,272,共4页Petrochemical Technology & Application

摘　　要：在中国石油兰州石化公司30万t/a聚丙烯装置上,生产了双向拉伸聚丙烯薄膜原料T38 F,当熔体流动指数控制在(0.30±0.01)g/min,等规度控制在95.5%～97.0%,第一环管反应器的粉料熔体流动指数控制在0.09～0.10 g/min,其分配率为53%左右时,所生产产品与国内同类产品相比,前者综合性能较好,相对分子质量分布较宽,有利于后续加工。The biaxial oriented polypropylene resin T 38 F is produced in the 300 kt/a polypropylene plant of Lanzhou Petrochemical Company. When the melt flow index and isotacticity were controlled at the range of （0.30 ±0. 01 ）g/min and 95.5% - 97.0% respectively,the melt flow index of PP powder and the polymerization split in the first loop reactor were controlled at the range of 0.09 - 0.10 g/min and about 53% respectively, compared with the domestic similar product, the purpose product had better balanced properties and a wider relative molecular mass distribution that was favourable for after processing.

关 键 词：双向拉伸聚丙烯树脂 熔体流动指数 相对分子质量 等规度 分配率 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]