聚四氟乙烯胶乳与碳黑粒子共凝聚行为的研究  

Study on Hetero-coagulation of Poly(tetrafluoroethylene) Latex Particles and Carbon Black Particles

作　　者：朱耕宇[1] 陈雪萍[1] 陆世浚[1] 李胜 翁志学[1] 

机构地区：[1]浙江大学高分子工程研究所,浙江杭州310027 [2]浙江巨圣氟化学有限公司,浙江衢州324004

出　　处：《化学反应工程与工艺》2004年第2期117-120,共4页Chemical Reaction Engineering and Technology

摘　　要：提出了用共凝聚的方法制备填充聚四氟乙烯(PTFE)的思想,以Al(NO3)3、CaCl2、Kcl为凝聚剂进行PTFE分散乳液与碳黑粒子的共凝聚。考察了胶乳种类、凝聚温度、搅拌转速等对共凝聚过程的影响规律,初步探讨了共凝聚粒子的成粒机理。结果表明共凝聚粒子是疏水性的,粒子内碳黑分散均匀。The idea of preparing filled poly(tretrafluorothyleneXPTFF) with hetero-coagulation method was introduced. Hetero-coagulation of PTFE latex particles and carbon black particles was studied with coagulation agents Al(NO3)3, CaCl2 and KCl. The influence of latex type, temperature and agitation speed on hetero-coagulation process were investigated. The mechanism of forming composite particles was discussed. The composite particles prepared by this means were hydropho-bic. The carbon black particles were dispersed in hetero-coagulated particles equably.

关 键 词：聚四氟乙烯胶乳 碳黑粒子 共凝聚 成粒机理 疏水性 

分 类 号：TQ325.4[化学工程—合成树脂塑料工业]