【摘要】 以二羟甲基丙酸(DMPA)、甲基丙烯酸甲酯(MMA)、异佛尔酮-二异氰酸酯(IPDI)、聚乙二醇(PEG-1000)、丙烯酸丁酯(BA)、丙烯酸羟乙酯(HEA)等为基本原料,三乙胺(TEA)作为中和剂,采用原位乳液聚合法合成了水性聚氨酯-丙烯酸酯复合乳液(PUA)。较详细地研究了DMPA的加入量、NCO/OH的比值、固含量、引发剂的种类及加入量、乳化剂种类及加入量等对PUA复合乳液性能以及外观的影响。通过傅立叶变换红外光谱、激光粒度分析仪、凝胶渗透色谱等对合成的PUA复合乳液进行了分析和表征。更多还原

【Abstract】 Waterborne polyurethane-acrylate compounded emulsion(PUA) was synthesized with dimethylol propionic acid(DMPA),methyl methacrylate(MMA),butyl acrylate(BA),polyethylene glycol(PEG) as basic raw materials,together with triethylamine(TEA) as neutralizer by way of emulsion polymerization in situ.Such factors as: NCO/OH ratio,the amounts of dimethylol propionic acid(DMPA),kinds and amount of initiator,kinds and amount of emulsifier,NCO/OH ratio,solid content,which affected the properties and appearance of the PUA emulsions were discussed in detail.The hybrid emulsion was characterized by FT-TR,Malvern particle size analyzer andgel permeation chromatography(GPC),etc.更多还原