IPDI/HMDI配比对水性聚氨酯膜性能的影响  

Effect of IPDI/HMDI Ratio on Properties of Waterborne Polyurethane Films

作　　者：王洲一 洪士博 龙浩 向斌[2] 陆莹 赵志恒 WANG Zhouyi;HONG Shibo;LONG Hao;XIANG Bin;LU Ying;ZHAO Zhiheng(Chongqing Polycomp International Corp,Chongqing 400082,China;School of Chemistry and Chemical Engineering,Chongqing University,Chongqing 400030,China)

机构地区：[1]重庆国际复合材料股份有限公司,重庆400082 [2]重庆大学化学化工学院,重庆400030

出　　处：《聚氨酯工业》2021年第5期24-26,共3页Polyurethane Industry

基　　金：重庆市技术创新与应用发展专项(项目编号:cstc2019jscx-fxydX0051)。

摘　　要：采用异佛尔酮二异氰酸酯(IPDI)、二环己基甲烷二异氰酸酯(HMDI)、聚酯二醇A、聚乙二醇PEG1000和二羟甲基丙酸(DMPA)等制备了不同IPDI/HMDI质量比的玻璃纤维用水性聚氨酯(WPU)集束剂。通过红外光谱、差示扫描量热、热重损失、拉伸性能以及吸水测试等分析对比了WPU胶膜的性能。结果表明,随着WPU集束剂中HMDI用量增加,胶膜的T g逐渐向低温移动,热重损失率、吸水率以及断裂伸长率降低,拉伸强度先增大后减小。A series of waterborne polyurethane(WPU)for fiberglass treatment with different IPDI/HMDI mass ratios were prepared by isophorone diisocyanate(IPDI),dicyclohexylmethane diisocyanate(HMDI),polyester diol A,polyoxyethylene glycol PEG1000 and dimethylolpropionic acid(DMPA).The properties of WPU films were analyzed by infrared spectroscopy,differential scanning calorimetric,thermogravimetric analysis,tensile properties and water absorption test.The results showed that,with the increase of the amount of HMDI in WPU film,the T_(g) of the film moved to low temperature,the TG loss rate,water absorption and the elongation at break decreased,while the tensile strength increased first and then decreased.

关 键 词：异佛尔酮二异氰酸酯 二环己基甲烷二异氰酸酯 水性聚氨酯 玻纤集束剂 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]