双酚S耐黄变聚氨酯水性涂料的制备及性能研究

摘要

As the bisphenol S could improve the UVC yellowing resistance of polyurethane material, with polyester polyol/polyether polyol substituted by bisphenol S, polyurethanes waterborne coating was prepared in this paper. Value of chromatism, tensile strength, elongation at break, hardness and light-induced weight loss of bisphenol S polyurethanes waterborne coating were compared with polyester polyol polyurethanes. Results showed that, bisphenol S polyurethanes waterborne coating had improved the UVC yellowing resistance.%利用双酚S替代传统的聚酯多元醇或聚醚多元醇制备聚氨酯水性涂料，可以提高其耐黄变性能。本文利用双酚S制备了聚氨酯耐黄变涂料，并对其色差值、拉伸强度、断裂伸长率、硬度以及光失重进行了对比研究，证明其具有良好的耐黄变性。