摘要
将聚酯多元醇、ＴＤＩ投入反应瓶里，在８０～１２０℃下保温搅拌反应２ｈ，降温至５０～７０℃，加入扩链剂、丙酮和催化剂，并在此温度下搅拌２～４ｈ，然后在乳化釜中在高速搅拌下进行乳化，乳液减压蒸馏脱除丙酮，过滤得产品。
Polyester polyols and TDI are put into a reactor, stirred and reacted for 2h, while the temperature is kept at 80-120. And then chain extender, acetone and catalyst are added into the mixture, with the temperature reduction to 50-70, and stirred at the same temperature for 2-4h. Emulsification is carried out in an emulsifying pot at a high stirring speed. The emulsion is distilled under a reduced pressure and left acetone free to give the title product after the filtration.
出处
《皮革化工》
1999年第3期31-33,共3页
Leather Chemicals
关键词
水性聚氨酯
皮革
光亮剂
aqueous polyurethane
leather
top finishing agent
emulsion
