IMECH-IR  > 高温气体动力学国家重点实验室
Study and prediction for the fire resistance of acid corroded intumescent coating
Wang J; Song WH; Zhang M; Chen Z(陈阵); Song, WH (reprint author), Tianjin Polytech Univ, Environm & Chem Coll, Tianjin 300387, Peoples R China.
Source Publication2014 INTERNATIONAL SYMPOSIUM ON SAFETY SCIENCE AND TECHNOLOGY
2015
Conference Name9th International Symposium on Safety Science and Technology (ISSST)
Conference DateNOV 04-06, 2014
Conference PlaceBeijing, PEOPLES R CHINA
AbstractAcid corrosion may cause the deterioration of the fire resistance of the intumescent fire retardant coatings, especially for the coatings used in the acid polluted environment. This paper reported the results of an experimental study of degradation in fire protection performance of intumescent coating for steel elements after different times of immersion in the hydrochloric acid solution. After acid erosion, the thickness of the coating thinned, the surface became rough and had cracks and broken holes. The size of the pores in the char layer was larger and uneven, and some 'cement' parts were formed in the char layer. The TG/DTG results showed in the low temperature stage the curve was relatively flat. In the medium temperature stage, the number of the weight loss troughs decreased; the shape of the troughs simplified; and the top weight loss rate increased. In the high temperature stage, the troughs near 593 degrees C flattened gradually, and the top weight loss rate became smaller, while the top weight loss rate became larger around 674 degrees C. And there were significant changes in the thermal dynamic parameters. A prediction method of remained fire resistance property for the acid erosion coatings was proposed, by comprehensively considering the physical and chemical characteristics change trends of the corroded coating. And this method can be a reference for the fire safety evaluation of the built protected steel structure. (C) 2014 Published by Elsevier Ltd.
WOS IDWOS:000368672900062
DepartmentLHD高效洁净燃烧(CPCR)
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Indexed ByCPCI-S
Language英语
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Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58861
Collection高温气体动力学国家重点实验室
Corresponding AuthorSong, WH (reprint author), Tianjin Polytech Univ, Environm & Chem Coll, Tianjin 300387, Peoples R China.
Recommended Citation
GB/T 7714
Wang J,Song WH,Zhang M,et al. Study and prediction for the fire resistance of acid corroded intumescent coating[C]2014 INTERNATIONAL SYMPOSIUM ON SAFETY SCIENCE AND TECHNOLOGY,2015.
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