| The aritical narrate the synthesis technics of epoxy-polyslioxane,the proporation of epoxy-polyslioxane the ability of endurable high temperature studied by experimentation of endurable high temperature, physics mechanistic property, IS and DSC.The epoxy-polyslioxane-phenolic three-component resin as the main base of coating for heat exchanger, compared with epoxy- polyester, powdered zinc inorganic phosphate coating in aspect of endurable high temperature, heat strike,endurable corrosion. The effect of endurable pigments and painting technology to coating property has been discussed.Coatings of epoxy-polyslioxane-phenolic and the heat exchanger paint immersed in 80℃ 3%NaCl solutions for one week,Based on the EIS(Electrochemical Impedance Spectroscopy)displays of two coatings at various immersion time , the relation between impedance characteristics and structure or properties of coatings was discussed respectively. The protective properties of two heat exchanger coatings were evaluated in terms of calculated resulted of impedance data in the case. |
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