化工进展2024，Vol.43Issue(6)：3301-3309,9.DOI:10.16085/j.issn.1000-6613.2023-0881
疏水改性纳米二氧化硅对无氟泡沫灭火剂性能影响
Effect of hydrophobic ally modified silica on the performance of fluorine-free foam extinguishing agent
摘要
Abstract
The hydrophobic silica nanoparticles(NPs)were obtained by the modification of NPs with trimethylchlorosilane(TMCS),and the modified NPs were added to fluorine-free foam extinguishing agents to investigate the effects of the different modification agrees NPs on the performance of fluorine-free foam extinguishing agents.Thermogravimetric analysis(TGA),scanning electron microscopy(SEM),energy dispersive X-ray spectroscopy(EDX)and water contact angle measurements were used to characterize hydrophobic modified NPs at different TMCS concentrations.The TGA and EDX results confirmed that the effective surface modification of NPs was achieved with TMCS.The water contact angle test results show that when the mass fraction of TMCS is 16.67%.the contact angle of NPs could reach 150.9°.SEM analysis indicated that the dispersion of NPs was improved.The particle size of the modified NPs was mainly distributed between 60-150nm.The results of the foaming property,foam stability and fire extinguishing effectiveness of the modified NPs on the fluorine-free foam solution showed that the modified NPs had the greatest improvement on the foaming property,stability and fire extinguishing effectiveness of the foam when the mass fraction of TMCS was 13.04%.关键词
三甲基氯硅烷/纳米二氧化硅/疏水改性/无氟泡沫灭火剂Key words
trimethylchlorosilane/silica nanoparticles/hydrophobic modification/fluorine-free foam extinguishing agent分类
资源环境引用本文复制引用
曹海珍,王尚彬,欧红香,薛洪来,毕海普,王钧奇..疏水改性纳米二氧化硅对无氟泡沫灭火剂性能影响[J].化工进展,2024,43(6):3301-3309,9.基金项目
国家自然科学基金(21878026) （21878026）
2021年江苏省科技副总项目(FZ20211438) （FZ20211438）
2021年江苏省研究生工作站项目(2021-187) （2021-187）
江苏省高等学校基础科学(自然科学)研究面上项目(1020220949). （自然科学）
