有机硅改性蓖麻油基水性聚氨酯的制备及性能  

Preparation and Performance of Castor-oil-based Polyurethane Modified with Organosilicone

作　　者：陆亚东 葛硕硕 张萍波 唐敏艳 俞晓琴 包燕敏 高学文 LU Yadong;GE Shuoshuo;ZHANG Pingbo;TANG Minyan;YU Xiaoqin;BAO Yanmin;GAO Xuewen(School of Chemical and Material Engineering of Jiangnan University,Wuxi 214122,China;Kunshan Jialipu Making-plate Adhesive Ink Co,Ltd,Kunshan 215300,China;Jiahe Industrial(Suzhou)Co,Ltd,Suzhou 215021,China)

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122 [2]昆山嘉利普制版胶粘剂油墨有限公司,江苏昆山215300 [3]嘉合实业(苏州)有限公司,江苏苏州215021

出　　处：《中国塑料》2018年第9期118-123,共6页China Plastics

基　　金：江苏省产学研联合创新资金项目(BY2014023-08)

摘　　要：端羟丙基聚二甲基硅氧烷(HP-PDMS)取代部分多元醇原料蓖麻油,通过预聚体法制得植物油基水性聚氨酯(WPU)。利用醇羟基和异氰酸酯基之间的反应,引入不同含量的HP-PDMS到WPU链段中,制备出WPU/HP-PDMS复合材料。同时利用全反射傅里叶变换红外光谱测试、透射电子显微镜测试、热稳定性测定、静态接触角测试及拉伸测试探讨复合材料的疏水性、热稳定性和拉伸性能的变化。结果表明,HP-PDMS成功改性蓖麻油基WPU;随着HPPDMS含量的增加,复合材料的初始热分解温度(T5%)从225℃增加到248.5℃,同时,少量HP-PDMS的引入可以一定范围内提高材料的疏水性及拉伸强度。A series of plant-oil-based waterborne polyurethane(WPU)samples were synthesized using hydroxypropyl-terminated polydimethylsiloxane(HP-PDMS)and castor oil as raw materials by a prepolymer method.The different content of HP-PDMS was introduced into the polyurethane molecular chains to obtain the HP-PDMS/WPU hybrid composites through the chemical reaction between the OH groups on HP-PDMS and the NCO groups on IPDI.The hydrophobicity,thermal stability and mechanical properties of the composites were investigated by FTIR,TEM,thermal analysis,static contact angle and tensile experiment.The results indicated that the modified nanocomposites were synthesized successfully and their thermal degradation characteristic temperature at 5%weight loss was enhanced from 225℃to 248.5℃due to the incorporation of HP-PDMS.Both the tensile strength and hydrophobicity of the composites could be fairly enhanced with the addition of small amounts of HP-PDMS.

关 键 词：端羟丙基聚二甲基硅氧烷二元醇 植物油基水性聚氨酯 预聚体法 复合材料 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]