摘要： 采用半连续乳液聚合法，以丙烯酸酯类单体，配以环氧丙烯酸酯、乙烯基硅氧烷功能单体，合成了一种硅丙乳液，以此作为有机成膜物质添加至无机硅酸钾溶液中，与锌粉混合制备高附着力高柔韧性水性无机富锌涂料。通过红外光谱（ FT-IR）、透射电镜（ TEM）对合成硅丙乳液的形态结构进行表征；利用扫描电镜（SEM）对改性后的杂化涂膜及其富锌涂层的表面形貌进行分析；使用电化学阻抗谱（EIS）测试了富锌涂层的耐腐蚀性。结果表明：经自制的硅丙乳液改性后的富锌涂层附着力 0级，柔韧性 1 mm，耐腐蚀性明显提高。

关键词: 附着力, 柔韧性, 水性无机富锌, 乳液聚合, 硅丙乳液

Abstract: A silicone modified acrylic emulsion has been prepared by using a semi-continuous emulsion polymerization method, with acrylate monomers and other functionalmonomers of epoxy acrylate and vinyl siloxane, which was added as an organic film-formingmaterial into the inorganic potassium silicate solution, which was then mixed with zinc powderto prepare a waterborne inorganic zinc-rich coatings with excellent adhesion and flexibility.The morphology and structure of the synthesized silicone modified acrylic emulsion werecharacterized by infrared spectroscopy（FT-IR）and transmission electron microscopy（TEM）. The surface morphology of the modified hybrid coatings film and its zinc-rich coating wasanalyzed by scanning electron microscopy（SEM）. The corrosion resistance of zinc-rich coatings was tested using electrochemical impedance spectroscopy（EIS）. The results showed that the zinc-rich coatings modified by the homemaesilicone modified acrylic emulsionprovided the adhesion of rate 0 and flexibility of 1 mm, and the corrosion resistance is obviouslyimproved.

Key words: adhesion, flexibility, waterborne inorganic zinc-rich, emulsion polymerization, silicone modified acrylic emulsion

中图分类号: 

• TQ635.2