CAJ | 학술논문

采用乳液聚合法制备了甲基丙烯酸异冰片酯（ IBOMA）改性水性聚氨酯（ WPU）复合乳液，探索了引发剂种类和用量、反应温度、WPU与IBOMA质量比以及保温时间对复合乳液性能的影响，同时采用正交试验对反应条件进行了优化，确定了适宜的反应条件为：IBOMA与WPU固体组分质量比为1∶3，引发剂APS用量为单体质量的0．4％，反应温度80℃，保温熟化2 h。在此条件下，单体IBOMA平均转化率为95?80％，平均吸水率为5?73％，平均拉伸强度为27?8 MPa。并通过FT-IR、TEM、TG等测试方法对该复合材料的性能进行了表征，结果表明：所得乳液为核壳结构，乳液稳定性良好。
채용유액취합법제비료갑기병희산이빙편지（ IBOMA）개성수성취안지（ WPU）복합유액，탐색료인발제충류화용량、반응온도、WPU여IBOMA질량비이급보온시간대복합유액성능적영향，동시채용정교시험대반응조건진행료우화，학정료괄의적반응조건위：IBOMA여WPU고체조분질량비위1∶3，인발제APS용량위단체질량적0．4％，반응온도80℃，보온숙화2 h。재차조건하，단체IBOMA평균전화솔위95?80％，평균흡수솔위5?73％，평균랍신강도위27?8 MPa。병통과FT-IR、TEM、TG등측시방법대해복합재료적성능진행료표정，결과표명：소득유액위핵각결구，유액은정성량호。
The composite emulsion of waterborne polyurethane( WPU) modified by isobornyl methacrylate( IBOMA) was prepared by emulsion polymerization method. The effects of types and dosage of initiator, mass ratio of IBOMA and WPU ( solid component) , reaction temperature and holding time on properties of the composite emulsion were investigated. The optimum conditions were obtained by orthogonal test. Eventually, it was determined that the best conditions of WPU modified by IBOMA were m( IBOMA)∶m( WPU)=1∶3, 0.4% APS as the initiator ( based on the mass of monomer) , reaction temperature 80 ℃ and holding time 2 h. Under the above conditions, the average monomer conversion of IBO-MA was 95?80%, average water absorption was 5.73%, and average tensile strength was 27.80 MPa. The properties of the composite were characterized by FT-IR, TEM and TG. The results showed that the emulsion with core-shell structure was abtained, and its stability was good as well.