二次缩聚合成脲醛树脂

USING TOW-STAGE POHYCONDESATION SYNTHETIC UF RESIN

本文针对脲醛树脂应用中甲醛含量高的环保问题 ,采用二次缩聚的工艺合成脲醛树脂 ,降低脲醛树脂中游离甲醛的含量 ,并对合成反应的脲醛比、PH值、温度等工艺条件进行了研究。

In view to the circumstance's problem of high formaldehyde content in UF resin.using tow-stage pohycondesation synthetic UF resin to reduce the free formaldehyde content,and some conditions such as UF ratio,PH value and temperature were studies.