二步光氯化悬浮法制备高氯含量的氯化等规聚丙烯  

Preparation of chlorinated isotactic polypropylene with high chlorine content by two-step photo-chlorination suspension

作　　者：叶庆国[1] 

机构地区：[1]青岛化工学院,266042

出　　处：《现代化工》2000年第3期32-35,共4页Modern Chemical Industry

基　　金：青岛市科委资助!项目 ( 9695G0 60 1 0 4 )

摘　　要：采用二步光氯化悬浮法制备了高氯含量的 CIPP,研究了氯化温度、通氯量、固液比以及光照时间和方式等对 CIPP含氯量的影响。制备了含氯量在 61 %～ 63 %的高氯 CIPP,筛选出滤波介质并解决了光氯化法生产高聚物时灯易结膜的技术难点。得出的最佳工艺条件是 :在第一阶段 m( PP)∶ m(氯苯 ) =1∶ ( 8.5～ 9) ,反应温度 ( 1 1 0± 2 )℃ ,光照 5h,通氯速率为 4 0 cm3/min;第二阶段 m ( CPP)∶ m ( CCl4 )∶ m ( H2 O) =1∶ 3∶ 1 0 ,反应温度 70～ 75℃ ,光照反应时间 6～ 8h,通氯速率为 4 0cm3/min。The process of two step photo chlorination suspension is used to prepare chlorinated isotactic polypropylene (CIPP) with high chlorine content. The effects of chlorination temperature, chlorine flow rate, solid liquid ratio and light exposure time and method on the chlorine content of CIPP are investigated. CIPP with a high chlorine content of 61%～63% is prepared, the medium for wave filtration is selected and the problem of filming on the lamp surface caused polymer is solved. The optimal reaction conditions are as follows: in the first phase, m (PP)∶ m (chlorobenzene) =1∶ (8.5～9), reaction temperature:(110±2)℃, exposure time : 5 hours, chlorine flow rate : 40 cm 3/min.; in the second phase, m (CPP)∶ m (CCl 4)∶ m (H 2O) =1∶3∶10, reaction temperature: 70～75℃,photo reaction time: 6～8 hours, chlorine flow rate: 40 cm 3/min.

关 键 词：氯化等规聚丙烯 光氢化悬浮法 制备 二步法 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]