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http://dx.doi.org/10.14773/cst.2013.12.6.295

Development of anti-corrosive coating technique for alloy plated steel sheet using silane based organic-inorganic hybrid materials  

Park, Jongwon (Ulsan Industrial Technology Research Center, Research Institute of Industrial Science & Technology)
Lee, Kyunghwang (Ulsan Industrial Technology Research Center, Research Institute of Industrial Science & Technology)
Park, Byungkyu (Surface Treatment Department, AK ChemTech Co., Ltd.)
Hong, Shinhyub (Surface Treatment Department, AK ChemTech Co., Ltd.)
Publication Information
Corrosion Science and Technology / v.12, no.6, 2013 , pp. 295-303 More about this Journal
Abstract
Silane surface treatments have been developed as an alternative for toxic and carcinogenic chromate-based treatments for years. It is consistently observed that ultra-thin films offer excellent corrosion protection as well as paint adhesion to metals. The silane performance is comparable to, or in some cases better than, that of chromate layers. Based on the tetra-ethylorthosilicate(TEOS) and methlyl trieethoxysilane(MTES), inorganic sol was synthesized and formed hybrid networks with $SiO_2$ nano particle and polypropylene glycol(PPG) on Zn alloyed steel surface. According to SST results, addition of 10nm and 50nm $SiO_2$ nanoparticle in synthesized solution improved anti-corrosion property by its shear stress relaxation effect during curing process. Also, SST results were shown that anti-corrosive property was affected by the amounts of organic compounds.
Keywords
Zn alloy coated steel; hybrid coating; anti-corrosive; temporary corrosion protection;
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