Silane계 유무기 하이브리드 적용 합금도금강판 내식성 향상 코팅 기술 개발
Development of anti-corrosive coating technique for alloy plated steel sheet using silane based organic-inorganic hybrid materials
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Silane surface treatments have been developed as an alternative for toxic and carcinogenic chromate-basedtreatments for years. It is consistently observed that ultra-thin films offer excellent corrosion protectionas well as paint adhesion to metals. The silane performance is comparable to, or in some cases betterthan, that of chromate layers. Based on the tetra-ethylorthosilicate(TEOS) and methlyl trieethoxysilane(MTES),inorganic sol was synthesized and formed hybrid networks with SiO2 nano particle and polypropyleneglycol(PPG) on Zn alloyed steel surface. According to SST results, addition of 10nm and 50nm SiO2 nanoparticlein synthesized solution improved anti-corrosion property by its shear stress relaxation effect during curingprocess. Also, SST results were shown that anti-corrosive property was affected by the amounts of organiccompounds.
Abstract
Silane surface treatments have been developed as an alternative for toxic and carcinogenic chromate-basedtreatments for years. It is consistently observed that ultra-thin films offer excellent corrosion protectionas well as paint adhesion to metals. The silane performance is comparable to, or in some cases betterthan, that of chromate layers. Based on the tetra-ethylorthosilicate(TEOS) and methlyl trieethoxysilane(MTES),inorganic sol was synthesized and formed hybrid networks with SiO2 nano particle and polypropyleneglycol(PPG) on Zn alloyed steel surface. According to SST results, addition of 10nm and 50nm SiO2 nanoparticlein synthesized solution improved anti-corrosion property by its shear stress relaxation effect during curingprocess. Also, SST results were shown that anti-corrosive property was affected by the amounts of organiccompounds.
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