气固相法合成氯化聚氯乙烯树脂  

Synthesis of chlorinated polyvinyl chloride resin by gas-solid phase method

作　　者：张向京[1] 郭欣欣[1] 马瑞平[1] 乔永智[1] 熊春燕[1] 胡永琪[1] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018

出　　处：《合成树脂及塑料》2011年第4期5-8,共4页China Synthetic Resin and Plastics

基　　金：国家科技支撑计划课题(2009BAC64B09);青海省重大攻关项目(2008-G-148)

摘　　要：在流化床反应器中,研究了紫外光引发的氯化聚氯乙烯(CPVC)树脂的合成过程,考察了反应时间、反应温度、原料气中(?)(Cl_2)和紫外光强度对产品w(Cl)的影响。较佳的反应条件为:反应时间1.5h,反应温度110℃,原料气中(?)(Cl_2)为30%,紫外光波长为300nm,紫外光强度为211μW/cm^2。合成的CPVC产品中w(Cl)可达68.48%,CPVC的力学性能比聚氯乙烯有较大提高。The authors studied the synthesis process of chlorinated polyvinyl chloride（CPVC） initiated by UV light in a fluidized bed and explored the influences of reaction time, reaction temperature, volume fraction of chlorine gas in feedstock and UV light intensity on chlorine mass content of the CPVC product. The optimal reaction conditions included the reaction time 1.5 h, reaction temperature 110 ℃, volume fraction of chlorine gas in feedstock 30%, UV light wavelength 300 nm and UV light intensity 211 μW/cm2. The chlorine mass content of the CPVC so prepared could reach 68.48% and the mechanical properties of the CPVC improved noticeably in comparison with polyvinyl chloride.

关 键 词：氯化聚氯乙烯 聚氯乙烯 气固相 光催化 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]