油墨用水性聚氨酯乳液的制备及性能研究  

Study on synthesis and properties of WPU emulsion for printing ink

作　　者：梁飞 吴晓青[1] 刘苏宇[1] 周彩元[1] 马丽平[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《中国胶粘剂》2009年第12期33-36,共4页China Adhesives

摘　　要：以聚醚二元醇、甲苯二异氰酸酯(TDI)和二羟甲基丙酸(DMPA)为原料,制备了聚醚型芳香族水性聚氨酯(WPU)乳液,研究了R值[n(-NCO)∶n(-OH)]、DMPA用量、中和度和温度等对乳液外观、黏度、吸水率和稳定性等影响。结果表明:当R=2.0～2 5、w(DMPA)=5%、预聚温度为80℃和中和温度为40℃时,WPU乳液符合印刷油墨的使用要求。With polyether diol, toluene diisocyanate （TDI） and dimethylolpropionic acid （DMPA） as raw materials, so an aromatic polyether waterborne polyurethane （WPU） emulsion was prepared. The influences of R value（namely molar ratio of -NCO to -OH）, DMPA contents, neutralization degree, temperature and other factors were investigated on the emulsion properties such as appearance, viscosity, water absorption and stability. The results showed that the WPU emulsion met application requirement of printing ink when the R value was between 2.0 and 2.5, mass fraction of DMPA was 5%, prepolymerization temperature was 80 ℃ and neutral reaction temperature was 40 ℃.

关 键 词：水性聚氨酯 乳液 油墨 

分 类 号：TQ323.8[化学工程—合成树脂塑料工业]