蓖麻油改性阳离子水性聚氨酯的合成与应用  

Synthesis and Application of Castor Oil Modified Cationic Waterborne Polyurethane

作　　者：周建华 刘晨 刘庚 查向华 张禹 程文静 Zhou Jianhua;Liu Chen;Liu Geng;Zha Xianghua;Zhang Yu;Cheng Wenjing(College of Light Industry Science and Engineering,Shaanxi University of Science&Technology,Xi’an,Shaanxi 710021,China;National Demonstration Center for Experimental Light Chemical Engineering Education,Shaanxi University of Science&Technology,Xi’an,Shaanxi 710021,China;HT Fine Chemical Co.,Ltd.,Qingyuan,Guangdong 511500,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]陕西科技大学轻化工程国家级实验教学示范中心,陕西西安710021 [3]清远市宏图助剂有限公司,广东清远511500

出　　处：《针织工业》2019年第11期36-40,共5页Knitting Industries

基　　金：广东省清远市科技计划项目（2018D008）;陕西省科技厅自然科学基础研究计划项目（2017JZ003）

摘　　要：通过预聚体法,以蓖麻油为交联剂,甲基环氧丙基二羟乙基季铵盐为亲水扩链剂,亚硫酸氢钠为封端剂,合成了反应型蓖麻油改性阳离子水性聚氨酯。研究了甲基环氧丙基二羟乙基季铵盐用量对聚氨酯乳液的粒径、稳定性以及黏度的影响,并将蓖麻油改性阳离子水性聚氨酯用于棉织物固色整理。结果表明,该方法成功合成了反应型蓖麻油改性阳离子水性聚氨酯;当甲基环氧丙基二羟乙基季铵盐用量为10%时,所制备乳液具有较好的稳定性,且对棉织物的固色效果优良,固色处理后染色棉织物的耐皂洗色牢度和耐摩擦色牢度均提高1级。Reactive castor oil modified cationic waterborne polyurethane emulsion was synthesized by prepolymer method using castor oil as a cross-linking agent,methyl epoxypropyl dihydroxyethyl quaternary ammonium salt as a hydrophilic chain extender and sodium bisulfite as a blocking agent.The influence of the dosage of methyl epoxypropyl dihydroxyethyl quaternary ammonium salt on the particle size,stability and viscosity of polyurethane emulsion was studied,and castor oil modified cationic waterborne polyurethane was used in fabric fixing finishing.The results showed that the reactive castor oil modified cationic waterborne polyurethane was successfully synthesized.In particular,the polyurethane emulsion had good stability and good fixation effect on cotton fabric when the dosage of methyl epoxypropyl dihydroxyethyl quaternary ammonium salt was 10%.Both of the soaping fastness and rubbing fastness of the treated fabric could be improved by one level.

关 键 词：蓖麻油 阳离子水性聚氨酯 固色剂 合成 稳定性 棉织物 固色效果 

分 类 号：TS195.2[轻工技术与工程—纺织化学与染整工程]