皮革科学与工程2017，Vol.27Issue(6)：40-43,4.
涂层用无溶剂双组份聚氨酯的制备
The Preparation and Application of Solvent-free Two-component Polyurethane for Coating
蒋文佳 1余冬梅 2王小君 2龙志云1
作者信息
- 1. 广州冠志新材料科技有限公司,广东广州510670
- 2. 浙江传化股份有限公司,浙江杭州311215
- 折叠
摘要
Abstract
This paper studies the differences in reactivity about terminal hydroxyls component A,which are synthesized by various kinds of polyols and polyisocyanates.The effects of the ratios of component A and B,the types and dosages of catalysts,and the acetic acid dosages on curing time and application performance of coatings,are also discussed.The experimental results show that:component A,which is copolymerized by N220 and PNA,has higher reactivity and better film-forming physical properties.The optimum application performance of polyurethanes and comprehensive properties of films are obtained when the molar ratio of-OH∶-NCO in component A and B is 1∶1.7,the catalyst of dibutyhin diacetate dosages is 0.5 ‰ and the acetic acid dosages is 4.7％.关键词
双组份/聚氨酯/配比/涂层Key words
two-component/polyurethane/textile coating分类
轻工纺织引用本文复制引用
蒋文佳,余冬梅,王小君,龙志云..涂层用无溶剂双组份聚氨酯的制备[J].皮革科学与工程,2017,27(6):40-43,4.
