The results showed that optimum combination properties of PU emulsion were obtained with appropriate amount of free -NCO group.
英
美
- 结果表明,合成带游离-NCO根PU预聚体乳液,可以有效利用游离-NCO根与水分子的反应进行自交联,得到的PU乳液及其胶膜性能良好。