气固相法合成氯化聚氯乙烯的动力学  

Kinetics of synthesis of CPVC by gas-solid phase method

作　　者：张向京[1] 蒋子超[1] 郭欣欣[2] 武朋涛[1] 刘婷婷[1] 高晓洋 胡永琪[1] 

机构地区：[1]河北科技大学化学与制药工程学院,河北省石家庄市050018 [2]石家庄工大化工设备有限公司,河北省石家庄市050011

出　　处：《合成树脂及塑料》2014年第5期10-13,共4页China Synthetic Resin and Plastics

基　　金：国家科技支撑计划课题(2009BAC64B09);河北省高等学校创新团队领军人才培育计划资助(LJRC010)

摘　　要：在紫外光引发条件下采用气固相法在流化床反应器中合成氯化聚氯乙烯,研究了聚氯乙烯(PVC)氯化的动力学行为,考察了不同反应温度、反应时间、紫外光强度和氯气含量对PVC氯化反应的影响,通过自由基反应机理建立了PVC氯化反应的动力学模型,并对方程参数进行了估值。结果表明:该动力学模型可以很好地描述PVC的氯化行为,反应的表观活化能为82.6 kJ/mol,指前因子为9.97×1010 s-1。Chlorinated polyvinyl chloride was synthesized via gas-solid phase method in a fluidized bed reactor by ultraviolet initiation. The kinetic behavior of polyvinyl chloride （PVC） chlorination was studied. The effects of reaction temperature, reaction time, concentration of chlorine and ultraviolet light intensity on chlorination of PVC were investigated. The kinetic model of chlorination of PVC was established according to radical reaction mechanism and the parameters were estimated. The results show that the kinetic equation model is well agreed with the reaction experimental data, and the activation energy is 82.6 kJ/mol, the pre-exponential factor is 9.97×10^10 s^-1.

关 键 词：氯化聚氯乙烯 气固相 动力学模型 紫外光 流化床反应器 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]