浅谈国产DP800 PVC质量的改善  

Brief introduction to the quality improvement of domestic DP800 PVC

作　　者：李玉宝[1] 

机构地区：[1]天津乐金大沽化学有限公司,天津300455

出　　处：《聚氯乙烯》2003年第6期16-19,共4页Polyvinyl Chloride

摘　　要：分析了国产DP800PVC与日本进口DP800PVC的质量差距,并指出了改善DP800PVC质量的常用方法:(1)采用控制PVA配制工艺、选择适合的引发剂及PVC后处理工艺等方法消除"鱼眼";(2)运用两因子DOE的方法设计出PVA1和PVA2的最佳用量和配比,改善增塑剂吸收量;(3)选用Perester类型引发剂,选择适宜的汽提与干燥工艺条件;(4)在聚合体系内加入热稳定剂,并采用耐热终止剂。The quality differences between DP800 PVC products made in China and that imported from Japan are analyzed,and the regular methods to improve the quality of DP800 PVC are indicated,which are as follows:(1)eliminating the 'fish eyes' through controlling the preparation process of PVA,selecting suitable initiators and controlling the after-treatment process of PVC;(2)designing the optimal using amount and ratio of PVA1 and PVA2 by DOE method with two factors,and improving the adsorption amount of plasticizer;(3)selecting perester-type initiators and suitable technological conditions of stripping process and that of drying process;and (4)adding heat stabilizer,into the polymerization system and adopting heat-resistant terminator.

关 键 词：PVC 聚氯乙烯塑料 质量 中国 配制工艺 引发剂 后处理工艺 增塑剂 汽提 干燥 热稳定剂 耐热终止剂 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]