聚碳酸酯基水性聚氨酯的合成与性能研究  

Study on Synthesis and Property of Waterborne Polyurethane Based on Polycarbonate Diol

作　　者：刘都宝[1] 鲍俊杰[1] 高明志[1] 黎群[1] 许戈文[1] 

机构地区：[1]安徽大学化学化工学院安徽省绿色高分子材料重点实验室,安徽合肥230039

出　　处：《化学推进剂与高分子材料》2007年第2期49-51,共3页Chemical Propellants & Polymeric Materials

摘　　要：以聚碳酸酯二醇(PCDL)为主要原料合成水性聚氨酯(WPU)树脂,并与聚四氢呋喃(PTMEG)、聚醚(PO)、聚酯(PS)材料进行对比研究,同时探讨交联剂对成膜性能的影响。研究结果表明,适度交联可提高胶膜的拉伸强度及耐水性,交联使膜的断裂伸长率降低。液态材料PCDLT-981合成的WPU树脂的成膜光泽及断裂伸长率较好,固态材料PCDLT-5652合成的WPU树脂的拉伸强度及耐介质性能更佳。4种多元醇合成的WPU树脂,PCDL水性PU性能最优,有望取代溶剂型合成革树脂。Waterborne polyurethane（WPU） resin was synthesized by using polycarbonate diol （PCDL）（Mn=1 000 and Mn= 2 000） as main raw material, which was contrasted with PTMEG-based, polyether（PO）-based and polyester（PS）-based PU. The effects of cross linker on the properties of PCDL-based PU film were also studied. The results show that moderate crosslink can improve WPU tensile strength and water resistance, and decrease the WPU elongation at break. WPU resin prepared by liquid-state PCDL T-981 has better luster and elongation at break, while WPU resin prepareded by solid-state PCDL T-5652 has better tensile strength and medium resistance. Among the four kinds ofWPU resines prepared by different polyols, the PCDL based WPU properties are the best. It is hopeful that PCDL based WPU replaces the solvent synthetic leather resin.

关 键 词：聚碳酸酯二醇 水性聚氨酯 合成革树脂 性能 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]