A chain is no stronger than its weakest link: Weathering resistance of water-based intumescent coatings for steel applications

IF 1.9 4区 工程技术 Q2 ENGINEERING, MULTIDISCIPLINARY
Lars-Hendrik Daus, B. Schartel, V. Wachtendorf, R. Mangelsdorf, M. Korzen
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引用次数: 8

Abstract

A systematic approach was used to investigate the weathering-induced degradation of a common water–based intumescent coating. In this study, the coatings are intended for humid indoor applications on steel substrates. The coating contains ammonium polyphosphate, pentaerythritol, melamine, and polyvinyl acetate. By replacing each ingredient with a less water-soluble substance, the most vulnerable substances, polyvinyl acetate and pentaerythritol, were identified. Furthermore, the weathering resistance of the system was improved by exchanging the ingredients. The coatings were stressed by artificial weathering tests and evaluated by fire tests. Thermogravimetry and Fourier-transform infrared spectroscopy were used to study the thermal decomposition. This study lays the foundation for the development of a new generation of water-based intumescent coatings.
一条链的强度不亚于其最弱的一环:用于钢铁应用的水性膨胀型涂料的耐候性
采用系统的方法研究了普通水基膨胀型涂料的风化降解。在本研究中,该涂料适用于潮湿的钢基材室内应用。该涂料含有聚磷酸铵、季戊四醇、三聚氰胺和聚乙酸乙烯酯。通过用水溶性较差的物质代替每种成分,确定了最脆弱的物质,聚乙酸乙烯酯和季戊四醇。此外,通过组分的交换,提高了体系的耐候性。涂层通过人工风化试验进行了应力测试,并通过防火试验进行了评估。采用热重法和傅立叶变换红外光谱法研究了热分解过程。本研究为开发新一代水性膨胀涂料奠定了基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Fire Sciences
Journal of Fire Sciences 工程技术-材料科学:综合
CiteScore
4.00
自引率
0.00%
发文量
14
审稿时长
2.5 months
期刊介绍: The Journal of Fire Sciences is a leading journal for the reporting of significant fundamental and applied research that brings understanding of fire chemistry and fire physics to fire safety. Its content is aimed toward the prevention and mitigation of the adverse effects of fires involving combustible materials, as well as development of new tools to better address fire safety needs. The Journal of Fire Sciences covers experimental or theoretical studies of fire initiation and growth, flame retardant chemistry, fire physics relative to material behavior, fire containment, fire threat to people and the environment and fire safety engineering. This journal is a member of the Committee on Publication Ethics (COPE).
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