山东建筑大学学报2025，Vol.40Issue(6)：44-53,10.DOI:10.12077/sdjz.2025.06.006
膨胀型钢结构水性环氧防火涂料耐火性能研究
Research on the fire resistance performance of intumescent flame retardant waterborne epoxy coating for steel structures
LU Zhengxuan 1WANG Xuegang 1SU Haitong 2WEI Ranbo 1YUAN Xingdong1
作者信息
- 1. School of Materials Science and Engineering,Shandong Jianzhu University,Jinan 250101,China
- 2. Shandong Institute for Pproduct Quality Inspection,Jinan 250102,China
- 折叠
摘要
Abstract
The study of the Ammonium Polyphosphate/Expandable Graphite(APP/EG)binary intumescent flame-retardant system provides practical support for developing eco-friendly fireproof coatings for steel structures.In this work,a flame combustion apparatus was used to investigate the effects of expandable graphite,thermal insulation fillers(fly-ash cenospheres and basalt flakes),and blended emulsions on the performance of waterborne epoxy intumescent coatings.The microstructure of the resulting char layer was analyzed using Scanning Electron Microscopy(SEM)and Fourier Transform Infrared spectroscopy(FTIR).Results indicate that when the expandable graphite content was 17%,the char layer formed was dense and uniform,with a backside temperature of 207.9℃,an expansion ratio of 18,and an ablation rate of 8%,demonstrating optimal fire resistance.When the mass ratio of fly-ash cenospheres to basalt flakes was 6∶11,the maximum backside temperature reached 220℃,with an expansion ratio of 9.91,and an ablation rate of 14.77%,yielding a relatively uniform char layer.When the epoxy emulsion to silicone-acrylate emulsion ratio was 3∶1,the maximum backside temperature increased to 230.6℃,the expansion ratio decreased to 7.64,and the ablation rate was 16.53%,while the char layer remained uniform.关键词
膨胀型防火涂料/水性环氧/漂珠/玄武岩Key words
intumescent fire retardant coating/waterborne epoxy/cenosphere/basalt分类
建筑与水利引用本文复制引用
LU Zhengxuan,WANG Xuegang,SU Haitong,WEI Ranbo,YUAN Xingdong..膨胀型钢结构水性环氧防火涂料耐火性能研究[J].山东建筑大学学报,2025,40(6):44-53,10.
