主管：中华人民共和国应急管理部
主办：应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU
消防科学与技术

消防科学与技术 ›› 2024, Vol. 43 ›› Issue (4): 433-438.

• •    下一篇

气源及纳米颗粒对氟碳-碳氢表面活性剂泡沫性能影响研究

尚峰举1, 张佳庆1, 李开源2, 李耀强3,4,5   

  1. （1. 国网安徽省电力有限公司电力科学研究院 电力火灾与安全防护安徽省重点实验室（国家电网公司输变电设施火灾防护实验室），安徽 合肥 230601；2. 武汉理工大学 安全科学与应急管理学院，湖北 武汉 430070；3. 应急管理部天津消防研究所，天津 300381；4. 工业与公共建筑火灾防控技术应急管理部重点实验室，天津 300381；5. 天津市消防安全技术重点实验室，天津 300381）
  • 出版日期:2024-04-15 发布日期:2024-04-15
  • 作者简介:尚峰举(1989- )，男，河南许昌人，国网安徽省电力有限公司电力科学研究院（电力火灾与安全防护安徽省重点实验室），安徽省电机工程学会电力消防专委会秘书长，博士研究生，主要从事电力火灾与安全防护研究与管理工作，安徽省合肥市经济技术开发区紫云路299号，230601。
  • 基金资助:
    国网安徽省电力有限公司科技项目（52120523000L）

Study on the performance of fluorocarbon⁃hydrocarbon surfactant foam by gas source and nanoparticles

Shang Fengju1, Zhang Jiaqing1, Li Kaiyuan2, Li Yaoqiang3,4,5   

  1. (1. State Grid Anhui Electric Power Research Institute, Anhui Province Key Laboratory of Electric Fire and Safety Protection (State Grid Laboratory of Fire Protection for Transmission and Distribution Facilities) Anhui Hefei 230601, China; 2. School of Safety Science and Emergency Management, Wuhan University of Technology, Hubei Wuhan 430070,China; 3. Tianjin Fire Science and Technology Research Institute of MEM, Tianjin 300381, China; 4. Key Laboratory of Fire Protection Technology for Industry and Building, Ministry of Emergency Management, Tianjin 300381, China; 5. Tianjin Key Laboratory of Fire Safety Technology, Tianjin 300381, China)
  • Online:2024-04-15 Published:2024-04-15

摘要： 以双子短链氟碳表面活性剂（Gemini）和两性碳氢表面活性剂（LAMC）为核心组分制备了环保型泡沫分散体。研究了纳米SiO2颗粒和压缩气源种类对泡沫分散体起泡性、稳定性及铺展特性的影响。结果表明，纳米SiO2颗粒与短链氟碳表面活性剂存在分子间相互作用，在试验范围内，与压缩空气相比，未添加纳米SiO2颗粒的压缩氮气泡沫高度提升约5.8%，添加浓度为3%的纳米SiO2颗粒后分散体发泡性能略微下降。随着纳米SiO2颗粒的加入，泡沫的稳定性显著增加，氮气泡沫稳定性比空气泡沫提升约5%。纳米SiO2颗粒形成网状结构聚集体堵塞在Plateau边界中，有效延缓泡沫析液和粗化，从而增强泡沫的稳定性。由于氮气和空气自身密度及对泡沫液膜渗透性的不同，压缩空气泡沫在油面上的平均铺展速率较压缩氮气泡沫提升2.6%。研究结果能够为纳米SiO2颗粒在环保型泡沫灭火剂的研发和灭火应用方面提供理论指导。

关键词: 短链氟碳表面活性剂, 碳氢表面活性剂, 纳米SiO2颗粒, 压缩气源, 泡沫性能

Abstract: In this study, environmentally friendly foam dispersions were prepared using twin?chain fluorocarbon surfactants (Gemini) and amphoteric hydrocarbon surfactants (LAMC) as core components. The influence of nanoscale SiO2 particles and the type of compressed gas on the foaming properties, stability, and spreading characteristics of the foam dispersion were investigated. The results revealed that nanoscale SiO2 particles exhibited molecular interactions with short?chain fluorocarbon surfactants, leading to an approximately 5.8% increase in the height of compressed nitrogen foam compared to compressed air foam when 3% nanoscale SiO2 particles were added within the experimental range. The foaming performance of the dispersion slightly decreased after the addition of 3% nanoscale SiO2 particles. However, foam stability significantly increased with the incorporation of nanoscale SiO2 particles, resulting in a 5% improvement in the stability of nitrogen foam compared to air foam. Nanoscale SiO2 particles formed a network?like structure, aggregating within the Plateau borders, effectively delaying foam drainage and coarsening, thereby enhancing foam stability. Due to the inherent differences in density and permeability of foam liquid films between nitrogen and air, the average spreading rate of compressed air foam on the oil surface increased by 2.6% compared to compressed nitrogen foam. The findings of this study provide theoretical guidance for the development and firefighting applications of environmentally friendly foam extinguishing agents containing nanoscale SiO2 particles.

Key words: short?chain fluorocarbon surfactants, hydrocarbon surfactants, nanoscale SiO2 particles, compressed gas source, foam performance