石油化工2025，Vol.54Issue(10)：1391-1399,9.DOI:10.3969/j.issn.1000-8144.2025.10.002
防火阻燃与力学增强有机硅泡沫复合材料
Fire-resistant and mechanical enhanced silicone foam
摘要
Abstract
Expandable graphite(EG)with intumescent flame-retardant properties and thermally stable micron glass fiber powder(GFP)were selected as synergistic flame retardants and reinforcing fillers for silicon foam(SiF).EG and GFP were uniformly incorporated into the SiF matrix via a physical blending method during the foaming process.In order to explore the effects of the ratio of EG and GFP on the mechanical and thermal stability of foam materials,the fire resistance and flame retardancy of foam were tested by limiting oxygen index,cone calorimeter and flame impact test.The optimized 5 g EG and 5 g GFP achieved a limiting oxygen index of 41.5%,and exhibited significantly reduced heat release and fire grouth rate index of 56.7%,while demonstrating exceptional resistance to 1 300℃fire exposure for 30 min.Moreover,its compressive strength largely increased by 156%,while tensile strength and toughness highly improved by 75.7%and 280%,respectively.The synergistic effects of EG and GFP effectively endowed SiF with high mechanical reinforcement,toughening,and fire-resistant performance.关键词
有机硅泡沫/玻璃纤维/可膨胀石墨/力学性能/防火阻燃Key words
silicone foam/glass fiber/expandable graphite/mechanical performance/fire resistance and flame retardancy分类
化学化工引用本文复制引用
唐沛杰,曾富容,颜渊巍,赵海波..防火阻燃与力学增强有机硅泡沫复合材料[J].石油化工,2025,54(10):1391-1399,9.基金项目
国家重点研发计划(2023YFC3011703) （2023YFC3011703）
国家自然科学基金青年科学基金项目(52303061). （52303061）
