二乙烯基苯改性无胺型水性聚氨酯的制备及性能研究  

Preparation and properties of divinylbenzene modified amine-free waterborne polyurethane

作　　者：赖小娟[1,2] 张引引 谈泊 刘佳慧[1] 王磊 Lai Xiaojuan;Zhang Yinyin;Tan Bo;Liu Jiahui;Wang Lei(Shaanxi Key Laboratory of Chemical Additives for Industry,Shaanxi University of Science and Technology,Xi’an Shaanxi 710021,China;Shaanxi Research Institute of Agricultural Products Processing Technology,Xi’an Shaanxi 710021,China;PetroChina Changqing Oilfield Company,Oil and Gas Technology Research Institute,Xi’an Shaanxi 710018,China)

机构地区：[1]陕西科技大学陕西省轻化工助剂重点实验室,陕西西安710021 [2]陕西农产品加工技术研究院,陕西西安710021 [3]中国石油长庆油田分公司油气工艺研究院,陕西西安710018

出　　处：《石油化工》2019年第8期832-837,共6页Petrochemical Technology

基　　金：陕西省青年科技新星项目（2018KJXX-023）;西安市科技计划项目（201805024YD2CG8）

摘　　要：以异佛尔酮二异氰酸酯、聚己内酯二元醇、甲基丙烯酸甲酯为主要原料,二羟甲基丁酸为亲水扩链剂,制备了水性聚氨酯-丙烯酸酯乳液(WPUA)预聚体;采用二乙烯基苯(DVB)为新型交联剂与预聚体进行聚合作用,合成交联改性无胺型水性聚氨酯-聚丙烯酸酯(DWPUA)复合乳液;探讨了DVB的加入量,并对DWPUA复合乳液及胶膜进行测试和表征。表征结果显示,合成的DWPUA复合乳液,呈规整的核壳结构,改性后胶膜具有良好的耐热性和拉伸强度。实验结果表明,当DVB含量为0.3%(w)时,胶膜的拉伸强度由16 MPa提高到45 MPa(最大值);改性后的DWPUA胶膜较纯的WPUA胶膜相比,热分解温度提高了。Using isophorone diisocyanate,polycaprolactone diol,methyl methacrylate as the main raw material,dimethylol butyric acid as a hydrophilic chain extender to prepare an aqueous polyurethane-acrylate emulsion(WPUA)prepolymer.Divinylbenzene(DVB)was used as a new crosslinking agent to polymerize with the prepolymer to synthesize a crosslinked modified aminefree waterborne polyurethane-polyacrylate(DWPUA)composite emulsion.The DVB content was discussed and its composite emulsion and film were tested and characterized.The results show that the synthesized DWPUA composite emulsion has a regular core-shell structure,and the modified film has good heat resistance and tensile strength.When the DVB content is 0.3%(w),the tensile strength of the film is increased from 16 MPa to a maximum of 45 MPa.Compared with the pure WPUA film,the modified DWPUA film has an increased thermal decomposition temperature.

关 键 词：二乙烯基苯 新型交联剂 核壳结构 水性聚氨酯-聚丙烯酸酯 热分解 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]