EFFECT OF GLASS POWDER ON ACID RESISTANCE OF ENAMEL COATING

Mingyong Shu, Haiying Yin, Qingdong Zhong, Xi Shi and Hongbo Han
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Mingyong Shu: State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200072, P. R. China†School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, P. R. China
Haiying Yin: #x2020;School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, P. R. China
Qingdong Zhong: State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200072, P. R. China
Xi Shi: State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200072, P. R. China
Hongbo Han: State Key Laboratory of Advanced Special Steel, Shanghai University, Shanghai 200072, P. R. China†School of Biological and Chemical Engineering, Panzhihua University, Panzhihua 617000, P. R. China

Surface Review and Letters (SRL), 2017, vol. 24, issue 03, 1-9

Abstract: Enamel glaze was added with glass powders of different sizes and masses and fired into enamel coatings on the surface of low-carbon steel. Acid resistance of the enamel coatings in H2SO4 solution was analyzed by X-Ray Diffraction (XRD), Scanning Electron Microscope (SEM) and mass loss of acid corrosion. As was discovered in research, the acid corrosion quantity in the enamel coatings decreased with the decrease in the particle size of the glass powder when the particle size of the additive glass powder reduced from 100μm to 1–2μm and heated the prepared enamel coatings in the H2SO4 solution until 80∘C and kept for 48h. When the additive amount of the glass powder increased from 5% to 20%, the surface of the enamel coating was smooth and flat with good glossiness and without defects like obvious bubbles and cracks, and the acid corrosion quantity decreased with increase in the additive amount of glass powder, which decreased from 43.24mg/cm2⋅d to 4.28mg/cm2.d, satisfying the acid-proof performance requirements of industrial enamel coatings.

Keywords: Glass powder; enamel coating; acid resistance (search for similar items in EconPapers)
Date: 2017
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DOI: 10.1142/S0218625X17500366

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