EFFECT OF SOLUBLE SALTS OF STEEL SURFACE ON ANTI-CORROSIVE PROPERTIES OF CHLORINATED RUBBER COATING

Journal of Chinese Society for Corrosion and protection

2012, Vol. 32

Issue (6): 460-466 DOI:

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EFFECT OF SOLUBLE SALTS OF STEEL SURFACE ON ANTI-CORROSIVE PROPERTIES OF CHLORINATED RUBBER COATING

HE Youce¹, YU Hongying², JIN Ying¹, SUN Dongbai¹

1. National Center for Material Services Safety, University of Science and Technology Beijing, Beijing 100083

2. Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083

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Abstract

The experiment invested the effect of soluble salts content of substrate surface on the anti-corrosive properties of the coating by GB/T 10834-2008 and ASTM D870-02 standards, and corrosion results were evaluated according to the GB/T 1766-2008 specification. Besides, the morphologies of the coating after immerged were observed by SEM. The result shows that the time order of visible damage of the coating is blistering, flaking and rusting respectively. It is more permeative of the deionized water used by ASTM standard than the salt water used by GB due to the existence of soluble salt on the matrix, which has great attack on the coating. The range of soluble salt changes from 28.02 mg/m² to 43.92 mg/m², which makes the coating damage dramatically, so we think the threshold value is about 43.92 mg/m².

Key words: soluble salt coating immersion threshold limit value

Received: 07 November 2011

ZTFLH:

TG173.4

Corresponding Authors: YU Hongying E-mail: hgyu@nstb.edu.cn

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Cite this article:

HE Youce, YU Hongying, JIN Ying, SUN Dongbai. EFFECT OF SOLUBLE SALTS OF STEEL SURFACE ON ANTI-CORROSIVE PROPERTIES OF CHLORINATED RUBBER COATING. Journal of Chinese Society for Corrosion and protection, 2012, 32(6): 460-466.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y2012/V32/I6/460

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