三氟氯乙烯-醋酸乙烯酯-叔碳酸乙烯酯含氟乳液的合成  

Study of Chlorotrifluoroethylene-Vinylacetate-Vinyl Ester of Versatic Acid Containing Fluorine Emulsion

作　　者：施锦辉[1,2,3] 马艳明[1,2,3] 张炉青[1,2,3] 徐安厚[1,2,3] 张书香[1,2,3] 

机构地区：[1]济南大学山东省氟化学化工材料重点实验室,山东济南250022 [2]济南大学化学化工学院,山东济南250022 [3]济南大学山东省氟材料工程技术研究中心,山东济南250022

出　　处：《中国粉体技术》2012年第2期43-46,54,共5页China Powder Science and Technology

基　　金：山东省科技攻关项目;编号:2007GG10003014

摘　　要：以三氟氯乙烯、醋酸乙烯酯、叔碳酸乙烯酯为主要原料,制备固相质量分数约为33%,乳胶粒子粒径为151～205 nm的一系列稳定的三元含氟共聚物乳液,并对聚合物结构进行红外光谱表征,通过透射电镜观察乳胶粒子的形态,讨论乳化剂全氟辛酸铵用量、引发剂过硫酸钾用量及反应温度对共聚胶乳粒径的影响和单体配比对乳液最低成膜温度和聚合物玻璃化温度的影响。结果表明,随着全氟辛酸铵用量和过硫酸钾用量增大和反应温度升高,乳液中乳胶粒子的粒径变小;随着过硫酸钾、全氟辛酸铵用量增加,乳胶粒子数量逐渐增加;随着叔碳酸乙烯酯用量的增加,乳液最低成膜温度和聚合物玻璃化温度都变小。The emulsion copolymerization of chlorotrifluoroethylene（CTFE）,vinyl acetate（VAc）,vinyl ester of versatic acid（VeoVa10） was carried out,forming a serious of stable emulsions with 33% solid in mass fraction and particles in size105~205 nm.Fourier transform infrared spectroscopy of the copolymers were investigated and a transmission electron microscope was used to observe the shape of latex particles.The influences of emulsifier CF3（CF2）6 COONH4 dosage,initiator K2S2O8 dosage and the reaction temperature on the latex particle size and size distribution were discussed.The influences of different monomer ratio on minimum filming temperature of emulsion and glass transition temperature of polymer film were also studied.The results show that increasing CF3（CF2）6 COONH4 dosage,K2S2O8 dosage and reaction temperature make the size of latex particles small.Increasing CF3（CF2）6 COONH4 dosage,K2S2O8 dosage make the number of latex particles large.Along with the increase of VeoVa10 dosage,minimum filming temperature of emulsion and glass transition temperature of polymer film become lower.

关 键 词：含氟聚合物 乳液 乳胶粒子 

分 类 号：TQ317.3[化学工程—高聚物工业]