Strong-adhesion high-water-retention forest grassland chitosan-based gel fire extinguishing agent and application thereof

By designing a two-component chitosan-based gel fire extinguishing agent, the shortcomings of existing gel fire extinguishing agents in balancing high-efficiency fire extinguishing, good flowability, long-lasting adhesion, and environmental friendliness are solved. It achieves fire extinguishing effects of rapid gelation at room temperature, strong adhesion, high water retention, and low viscosity, thereby improving fire extinguishing efficiency and environmental friendliness.

CN122441046AActive Publication Date: 2026-07-24SHANDONG UNIV OF SCI & TECH
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Patent Information

Application Number
CN202610921030.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-25
Publication Date
2026-07-24
Estimated Expiration
2046-06-25

AI Technical Summary

Technical Problem

Existing gel fire extinguishing agents have shortcomings in balancing high fire extinguishing efficiency, good fluidity, long-lasting adhesion, and environmental friendliness. They are also difficult to mix with water at room temperature, have high component viscosity, and have long gelation time, which affects long-distance delivery and spraying effectiveness.

Method used

A two-component chitosan-based gel fire extinguishing agent, comprising component A and component B, is used. By carboxymethylating chitosan and its derivatives, the gelation time is controlled, adhesion and water retention are improved, and bio-based materials are used to ensure environmental friendliness.

Benefits of technology

It achieves rapid gelation at room temperature, strong adhesion, high water retention, low viscosity, and easy transportation in fire extinguishing, reducing the risk of environmental pollution and improving fire extinguishing efficiency and resistance to reignition.

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Abstract

The invention discloses a high-adhesion and high-water-retention forest grassland chitosan-based gel fire extinguishing agent and application thereof, and belongs to the technical field of gel fire extinguishing agents. The chitosan-based gel fire extinguishing agent provided by the invention comprises a component A and a component B, wherein the component A is a mixture containing a carboxymethylated chitosan-based compound, solid acid, a preservative and water; and the component B is a mixture containing a water-retaining agent, a cross-linking agent, an inorganic filler, a flame retardant and water. The chitosan-based gel fire extinguishing agent has the advantages of low component viscosity, high adhesion and strong water-retaining property, and the adopted biological materials have degradability, so that the chitosan-based gel fire extinguishing agent has the advantages of greenness and environmental protection. The gel fire extinguishing agent provided by the invention can quickly and uniformly cover the surface of a combustible in a gel form at room temperature, has strong adhesion performance, can effectively avoid loss, also has excellent fire extinguishing efficiency and anti-reburning capability, provides a new method for forest fire prevention, and has popularization value.
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