Study and prediction for the fire resistance of acid corroded intumescent coating

CORC > 力学研究所 > 中国科学院力学研究所 > 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)
	2015
会议名称	9th International Symposium on Safety Science and Technology (ISSST)
会议日期	NOV 04-06, 2014
会议地点	Beijing, PEOPLES R CHINA
通讯作者	Song, WH (reprint author), Tianjin Polytech Univ, Environm & Chem Coll, Tianjin 300387, Peoples R China.
中文摘要	Acid 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.
收录类别	CPCI-S
会议网址	10.1016/j.proeng.2014.10.464
会议录	2014 INTERNATIONAL SYMPOSIUM ON SAFETY SCIENCE AND TECHNOLOGY
会议录出版者	ELSEVIER SCIENCE BV
会议录出版地	AMSTERDAM ; SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
语种	英语
WOS记录号	WOS:000368672900062
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58861]
专题	力学研究所_高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Wang J,Song WH,Zhang M,et al. Study and prediction for the fire resistance of acid corroded intumescent coating[C]. 见:9th International Symposium on Safety Science and Technology (ISSST). Beijing, PEOPLES R CHINA. NOV 04-06, 2014.10.1016/j.proeng.2014.10.464.