作　　者： ; ; ;

机构地区： 广东药学院

出　　处： 《涂料工业》 2008年第1期28-30,40,共4页

摘　　要： 合成了不同有机硅改性的阳离子聚氨酯乳液,不同结构的有机硅的加入改善了漆膜的耐水性、耐酸碱及耐有机溶剂的性能,改善了漆膜光泽和手感,提高了漆膜耐热性,改变了乳液的粒径,提高了乳液的稳定性,但是,不同有机硅对产物性能的影响不同。红外光谱分析表明,异氰酸酯已经完全反应,产物中存在氨基甲酸酯。 The title cationic waterborne polyurethane modified with various silicones were prepared. It was found that incorporation of silicone with different structures will improve the water resistance, acid/alkali resistance, solvent resistance, thermal stability of the coatings film, as well as the film gloss and touch - feeling. It also can change the emulsion particle size and improve the stability of emulsion. But different silicones will show different influence on properties of products. FT - IR analysis showed the - NCO were reacted completly, forming urethane.

关 键 词： 水性聚氨酯 阳离子 有机硅 室温自交联 自乳化

领　　域： [化学工程]