水性生态合成革涂饰剂的制备及应用

Preparation and Application of Waterborne Ecological Synthetic Leather Finishing Agents

以尿素为原料,制备出g-C_(3)N_(4),并将其分散到以聚四氢呋喃醚,己二酸为原料合成出聚酯-聚醚多元醇中。再加入异佛尔酮二异氰酸酯(IPDI)进行反应,溶剂稀释。之后以丙烯酸羟乙酯(HEA)作为封端剂,降温,三乙胺中和成盐,然后乳化,旋蒸出有机溶剂,即得水性聚氨酯基涂饰剂。测试结果表明,自制水性涂饰剂的粘度更低,耐水性能更好,表面平整不会出现翘边现象,能可见光下能更好的水解小分子有机物,VOC含量也更低。

g-C_(3)N_(4) was prepared from urea and dispersed into polyester polyether polyol synthesized from polytetrahydrofuran ether and adipic acid.Then isophorone diisocyanate(IPDI)was added for reaction and diluted with solvent.After that,hydroxyethyl acrylate(HEA)was used as the end capping agent,cooled,neutralized with triethylamine to form salt,then emulsified and evaporated out of the organic solvent to obtain the waterborne polyurethane based finishing agent.The test results show that the self-made waterborne finishing agent has lower viscosity,better water resistance,flat surface,no edge warping,better hydrolysis of small molecular organics under visible light,and lower VOC content.