超临界CO2中CPVC树脂的生产  

Production of CPVC resin in supercritical CO2

作　　者：李珍珍 黄鹏 LI Zhenzhen;HUANG Peng(Jiangsu Chemical Design Institute Co.,Ltd.,Nanjing 210000,China)

机构地区：[1]江苏省化工设计院有限公司

出　　处：《氯碱工业》2019年第12期32-36,41,共6页Chlor-Alkali Industry

摘　　要：介绍了超临界CO2中CPVC树脂的生产方法:PVC粉末在超临界CO2中分散溶胀,通人氯气,用紫外线照射,进行氯化反应。反应完成后,冷却降温,将超临界CO2转变为液相,初步分离液相CO2后,减压膨化制得疏松型CPVC。The production method of CPVC resin in supercritical CO2 is introduced.PVC powder disperses and swells in supercritical CO2,then chlorine gas is added and chlorination is carried out by UV irradiation.After the reaction is completed,supercritical CO2 is converted into a liquid phase by cooling.After the liquid phase CO2 is initially separated,the loose CPVC is prepared hy vacuum expansion.

关 键 词：CPVC 超临界 CO2 自由基 紫外线 氯化反应 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]