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 ›› 2020, Vol. 39 ›› Issue (1): 91-94.

• • 上一篇    下一篇

改性膨胀玻化微珠对三相泡沫性能的影响

高维英，孙均利，吕 鹏，赵 敏   

  1. 中国人民警察大学，河北 廊坊 065000
  • 收稿日期:2019-09-07 出版日期:2020-01-15 发布日期:2020-01-15
  • 作者简介:高维英（1975-），女，山西天镇人，中国人民警察大学科研部副教授，博士，主要从事消防材料及火灾调查研究，河北省廊坊市安次区西昌路 220 号，065000。
  • 基金资助:
    国家重点研发计划项目（2016YFC0800609）；河北省重点研发计划自筹项目（18215602）

Influence of modified expanded vitrified microspheres on the properties of three phase foam

GAO Wei-ying, SUN Jun-li, LV Peng, ZHAO Min   

  1. China People's Police University, Hebei Langfang 065000, China
  • Received:2019-09-07 Online:2020-01-15 Published:2020-01-15

摘要： 采用两种不同物化性质的氟碳表面活性剂对膨胀玻 化微珠进行表面改性，研究其表面特性对三相泡沫的发泡性、泡沫 稳定性、油气密封性和抗烧性能的影响。研究结果表明：固水接触 角在 0~90o ，膨胀玻化微珠疏水性增强（即接触角增大）有助于改 善三相泡沫的发泡性和泡沫的稳定性；膨胀玻化微珠表面疏油性 强于疏水性对改善油类三相泡沫灭火剂的泡沫稳定性、油气密封 性及抗烧性能更有效；改性后的三相泡沫排液期间气体不容易排 出体系，而是在三相泡沫和汽油之间形成水气两相泡沫区，可持续 近 10 h，气体最终在三相泡沫和杯壁结合处（最薄弱的地方）完全 释放，表明三相泡沫极其致密和稳定。

关键词: 三相泡沫, 膨胀玻化微珠, 表面特性, 油类灭火剂

Abstract: Expanded vitrified microspheres were modified with two different fluorocarbon surfactants, and the influence of expanded vitrified microspheres surface characteristics on the foamability, the foam stability, the sealability to oil and the burning resistance of three phase foam was researched. The results showed that the increase of microsphere hydrophobicity (that is to increase the contact angle of solid and water) was helpful to improve the foamability and stability when the contact angle was in the range of 0o ~90o . For the three phase foam for oil fire control and extinguishing, the stronger oleophobicity of microspheres than the hydrophobicity is more effective to improve the foam stability, the sealability to oil and the burning resistance of three phase foam. When the liquid drained from the modified three phase foam, the gas was not easy to exhaust, so a watergas two phase foam area was formed between the three phase foam and the gasoline, which could last for nearly 10 h. Finally, the gas was completely released at the junction of the three phase foam and the breaker wall (the weakest place), indicating that the three phase foam is extremely dense and stable.

Key words: three phase foam, expanded vitrified microsphere, sur? face characteristic, extinguishing agent for oil fires