文献类型：期刊文献

中文题名：Preparation and Properties of Two-Component and Double-Crosslinking Waterborne Polyurethane-Acrylic Dispersions

英文题名：Preparation and Properties of Two-Component and Double-Crosslinking Waterborne Polyurethane-Acrylic Dispersions

作者：Nan Gao[1,2,3];Zhuo Zhang[1,2,3];Qingzhi Dong[1,2,3]

机构：[1]East China University of Science and Technology, Shanghai, China;[2]East China University of Science and Technology, Shanghai, China;Shanghai Institute of Technology, Shanghai, China;[3]Shanghai Institute of Technology, Shanghai, China

年份：2013

卷号：3

期号：2

起止页码：27

中文期刊名：Open Journal of Organic Polymer Materials

外文期刊名：有机高分子材料期刊（英文）

语种：英文

中文关键词：Waterborne;Polyurethane-Acrylic;Dispersions;Two-Component;Double-Crosslinking

外文关键词：Waterborne Polyurethane-Acrylic Dispersions;Two-Component;Double-Crosslinking

摘要：In this paper, isophorone diisocyanate (IPDI), polyethylene glycol (PEG), dimethylolpropionic acid (DMPA) and internal crosslinking agent trimethylolpropane (TMP) were used to prepare waterborne polyurethane. And then double-crosslinked polyurethane-acrylic composite aqueous dispersion was prepared in which polyacrylate was adopted to modify waterborne polyurethane and some special external crosslinking agents were added including silicone and trifunctional aziridine. The influence of the amounts of internal and external crosslinking agents, emulsifier, initiator on the particle size, particle size distribution, viscosity, molecular weight, as well as water adsorption ratio were studied.
In this paper, isophorone diisocyanate (IPDI), polyethylene glycol (PEG), dimethylolpropionic acid (DMPA) and internal crosslinking agent trimethylolpropane (TMP) were used to prepare waterborne polyurethane. And then double-crosslinked polyurethane-acrylic composite aqueous dispersion was prepared in which polyacrylate was adopted to modify waterborne polyurethane and some special external crosslinking agents were added including silicone and trifunctional aziridine. The influence of the amounts of internal and external crosslinking agents, emulsifier, initiator on the particle size, particle size distribution, viscosity, molecular weight, as well as water adsorption ratio were studied.