【摘要】 通过测量纳米二氧化硅水体系、纯丙乳液 纳米二氧化硅混合体系的 ζ电位 ,确定了在纯丙乳液中加入纳米二氧化硅的最佳 pH值条件 ,即 pH值为 6 .2 9～ 7.4 9.通过红外光谱证实了在混合体系中纳米二氧化硅与纯丙乳液发生了接枝交联 ,从而提高了混合乳液的储存稳定性和成膜性能 .文中还以纳米二氧化硅增强的纯丙乳液制备了高性能的建筑涂料 .更多还原

【Abstract】 This study, by testing the zata potentials of acqueous silica nanoparticles and the composite system of silica nanoparticles and acrylate emulsion respectively, formed the optimal condition of adding silica nanoparticles into acrylate emulsion system. The infrared spectra analysis testified the grafting reaction between silica nanoparticles and acrylate emulsion system, which improved the performance of the composite emulsion. High quality building paints can be produced by this acrylate emulsion enhanced by silica nanoparticles.更多还原