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Research on the influence of wollastonite fibers on the stability of foam extinguishment agent and its effect on the extinguishing efficiency of pool fire
Fire and Materials ( IF 1.9 ) Pub Date : 2020-09-01 , DOI: 10.1002/fam.2908
Xiujuan Li 1, 2 , Ruisong Guo 1 , Xiaodong Qian 2
Affiliation  

Aqueous film‐forming foam (AFFF) is a frequently used foam extinguishment agent for oil fires, but the foam stability of AFFF is not perfect, which results in poor fire extinguishing performance. In order to improve the foam stability of AFFF, wollastonite fibers were explored to increase the performance of foam extinguishment agent. The influences of wollastonite fibers' concentration on foam extinguishment agent's stability are studied. When the concentration of wollastonite fibers is 30.00 g/100 mL, the drainage time is prolonged, which is the best among all the formulas. Moreover, the fire resistance and fire‐fighting performances are increased significantly due to the incorporation of wollastonite fibers. In order to reveal the effect of wollastonite fibers on the stability of foam extinguishment agent, the structure of the foam and the diameter of the bubbles are investigated. The results show that the complexity and compactness of foam layer's structure are very important for foam stability, and the fire‐extinguishing performance is improved due to the introduction of wollastonite fibers.

中文翻译:

硅灰石纤维对泡沫灭火剂稳定性的影响及其对池火灭火效率的影响研究

水性成膜泡沫(AFFF)是用于油火的常用泡沫灭火剂,但AFFF的泡沫稳定性并不理想,导致灭火性能差。为了提高AFFF的泡沫稳定性,探索了硅灰石纤维以提高泡沫灭火剂的性能。研究了硅灰石纤维浓度对泡沫灭火剂稳定性的影响。当硅灰石纤维的浓度为30.00 g / 100 mL时,排水时间会延长,这是所有配方中最好的。此外,由于掺入了硅灰石纤维,耐火性和消防性能大大提高。为了揭示硅灰石纤维对泡沫灭火剂稳定性的影响,研究了泡沫的结构和气泡的直径。结果表明,泡沫层结构的复杂性和致密性对于泡沫的稳定性非常重要,并且由于引入了硅灰石纤维而提高了灭火性能。
更新日期:2020-11-06
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