摘要
采用聚酯二元醇与甲苯二异氰酸酯 (TDI)和二羟甲基丙酸 (DMPA)反应合成水性聚氨酯分散体 ,进一步制成涂料。讨论了影响水性聚氨酯涂膜性能的因素 ,结果表明 ,当—NCO/—OH量比为 1 2时 。
The waterborne polyurethane dispersion was synthesized by the reaction of polyester glycol with toluene diisocyanate(TDI) and dimethylolpropionic acid(DMPA),and the coatings can be made based on it. The factors influenced on the properties of waterborne polyurethane film were discussed. And the results showed that the waterborne polyurethane coatings have good mechanical properties. When the suitable ratio of —NCO/—OH was equal to 1 2, the synthetic method was proved feasible and its technical parameters such as the reaction temperature and reaction time were obtained with adding DMPA in dissolved state and with NMP.
出处
《精细与专用化学品》
CAS
2004年第15期26-28,25,共4页
Fine and Specialty Chemicals
