摘要：采用原位化學合成法制備對甲苯磺酸摻雜的聚苯胺/二氧化硅復合材料，并用紅外光譜、掃描電鏡和透射電鏡表征其結構，以合成的聚苯胺/二氧化硅為功能組分，丙烯酸水性乳液為成膜物質，制成水性環保防腐涂料。用電化學測試技術研究復合水性防腐涂料對碳鋼基材的防護效果。結果表明，復合水性防腐涂料使金屬基體的腐蝕電位正移，具有較好的鈍化效果,增強了耐蝕性。

       Absract：Polyaniline-SiO2 was in situ synthesized and doped by p-toluenesulfonic acid (p-TSA). The composites were characterized by FTIR, SEM and TEM. The corrosion performance of polyaniline-SiO2 pigmented waterborne coating on carbon steel was studied by electrochemical testing technique in 3.5% NaCl solution. The tested results showed that a passivation effect and a positive shift of corrosion potential occurred due to the application of coating on metals and the anticorrosion property was enhanced.

       Key Word：polyaniline ,SiO2,waterborne coating,polarization