双重改性水性聚氨酯分散体的制备及研究  

Preparation and research of double modified waterborne polyurethane dispersion

作　　者：刘伟 董永兵 LIU Wei;DONG Yongbing(Shanxi Research Institute of Applied Chemistry(Co.Ltd.),Taiyuan Shanxi 030027,China)

机构地区：[1]山西省应用化学研究所(有限公司),山西太原030027

出　　处：《山西化工》2021年第2期1-3,7,共4页Shanxi Chemical Industry

基　　金：山西省应用基础研究项目(201801D221112);山西省科技成果转化引导专项(201804D131070);山西省科技重大专项(20181101012)。

摘　　要：以聚醚二元醇(PPG)、聚酯二元醇(PPA)、异佛尔酮二异氰酸酯(IPDI)、六亚甲基二异氰酸酯(HDI)三聚体、γ-氨丙基三乙氧基硅烷(KH550)、2,2-二羟甲基丙酸(DMPA)、1,4-丁二醇(BDO)、三乙胺(TEA)和水等为基本原料,合成了双重改性的水性聚氨酯(WPU)分散体。利用激光粒度仪、黏度计、万能拉力机、红外光谱(FT-IR)等方法对分散体的结构和性能进行了分析、测试和表征,并研究了HDI三聚体与KH550加入量对分散体性能的影响。结果表明,w(HDI三聚体)=1.5%(占IPDI质量)、w(KH550)=0.03%(占多元醇质量分数)时,效果相对最佳。The water-borne polyurethane(WPU)dispersion was synthesized with polyester diol(PPG),polyester diol(PPA),isophorone diisocyanate(IPDI),hexamethylene diisocyanate(HDI)trimer,γ-aminopropyltriethoxysilane(KH550),2,2-dihydroxypropylic acid(DMPA),1,4-butanediol(BDO),triethylamine(TEA)and water.The structure and properties of the dispersion were analyzed,tested and characterized by laser particle size meter,viscometer,universal tensile machine and FT-IR.The influence of the amount of HDI Trimer and KH550 on the properties of the dispersion was studied.The results showed that when w(HDI Trimer)=1.5%(IPDI mass),w(KH550)=0.03%(mass fraction of polyols),the effect was relatively best.

关 键 词：HDI三聚体 硅烷偶联剂 改性 水性聚氨酯 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]