Testing the influence of the plasticizers addition on the anticorrosive properties of an epoxy primer by means of electrochemical techniques

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• 作者：Rodrí ; guez ; M.T. ; Gracenea ; J.J. ; Garcí ; a ; S.J. ; Saura ; J.J. ; Suay ; J.J.
• 关键词：Plasticizer ; Epoxy primer ; Anticorrosion ; EIS ; ac/dc/ac
• 刊名：Progress in Organic Coatings
• 出版年：2004
• 出版时间：July, 2004
• 年：2004
• 卷：50
• 期：2
• 页码：123-131
• 全文大小：231 K

文摘

The effect of the plasticizer (butyl benzyl phthalate, BBP) addition on the corrosion resistance properties of paint films has been investigated by means of different electrochemical techniques (EIS and ac/dc/ac) and accelerated tests (salt fog spray). Primers based on epoxy resin were prepared with different plasticizer content (0, 1.5, 3, 5, 11, 16 and 25 % in weight ratio to epoxy resin). An optimum quantity of plasticizer content (1.5–3 % ) was determined that gave the maximum anticorrosive performance of the epoxy primer. Results offered by each one of the techniques were quite similar and the ac/dc/ac one offered the results in a very short time (24h).