Preparation and Characterization of a High-Performance Foam Extinguishing Agent with Sulfobetaine and Polyoxyethylene Ether for Solid Fires
Huizhong Ma, Liang Cheng, Lan Zhang, Liyang Ma, Jia Deng, Ao Zhao, Xin Jiang, Fei Wang
TL;DR
This study develops a high-performance foam extinguishing agent by optimizing wettability and adhesion for better solid fire suppression.
Contribution
The novel adhesion evaluation method and optimized foam composition for solid fire suppression are introduced.
Findings
A negative correlation exists between foam adhesion and wettability, influenced by solution viscosity and wetting time.
An 8 wt% Polyoxyethylene ether and 5 wt% Sulfobetaine formulation produces a wetting-type foam for rapid cooling.
A 8 wt% Polyoxyethylene ether and 9 wt% Sulfobetaine formulation creates an adhesive-type foam for persistent attachment.
Abstract
Although extensive studies have been conducted on the component ratios and performance of fire extinguishing foams, most research has not explored the coupling relationship between foam wettability and adhesion. Therefore, this study aims to develop an efficient foam extinguishing agent for solid fires by focusing on both wettability and adhesion. First, the influence of chemical functional groups on foam wettability and adhesion was elucidated, and the contributions of individual components to foam properties were experimentally investigated. Second, adhesion and wettability tests revealed a negative correlation between these two properties, consistent with variations in foam solution viscosity and wetting time. Third, a novel adhesion evaluation method was proposed, defined as the time required for foam to flow a fixed distance on inclined wooden surfaces; longer flow times indicated…
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Taxonomy
TopicsFire dynamics and safety research · Flame retardant materials and properties · Pickering emulsions and particle stabilization