Fire-Extinguishing Sheet Composition for Early Aerosol Suppression
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Solution Overview
Problem
Existing fire-extinguishing formed articles, such as those described in PLT 1, do not effectively extinguish fires in an early stage, particularly in environments where fires can break out in places, facilities, devices, tools, or structures.
Innovation Solution
A fire-extinguishing sheet comprising a fire-extinguishing agent that generates an aerosol upon thermal decomposition, containing a potassium compound and a binding agent, such as tripotassium citrate and potassium chlorate, which releases a potassium radical to break burning chains and extinguish fires quickly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fire-extinguishing formed article is used, then fire suppression capability is provided, but the fire cannot be extinguished in an early stage
Solution Approach 1:
The patent changes the chemical composition parameters of the fire-extinguishing agent by incorporating specific potassium compounds (such as potassium citrate and potassium chlorate) that decompose at lower temperatures to generate fire-extinguishing aerosols. This parameter change enables the material to activate more quickly at lower temperatures, allowing early-stage fire extinction while maintaining reliable fire suppression capability.
2Reliability
If a fire-extinguishing agent is incorporated into a formed article, then fire protection is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent merges the fire-extinguishing agent directly into the formed article structure, creating an integrated fire protection solution. The fire-extinguishing composition is incorporated into the formed article during the manufacturing process, combining the structural function with the fire protection function in a single component, thereby achieving fire protection without significantly increasing manufacturing complexity.
Solution Approach 2:
The patent uses composite materials by combining the fire-extinguishing agent (containing potassium compounds and binding agents) with the formed article material. This creates a composite structure where the fire-extinguishing properties are integrated into the article itself, providing fire protection while maintaining relatively simple manufacturing processes through the use of composite material technology.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The fire-extinguishing sheet effectively extinguishes fires in early stages by generating an aerosol, demonstrating high productivity and mass production capabilities, particularly effective for lithium ion batteries.
Implementation Method 1
a fire-extinguishing agent capable of generating a fire-extinguishing component by thermal decomposition upon reaching a prescribed temperature
Implementation Method 2
the fire-extinguishing component is an aerosol
Data Source
AI summary
A method for preparation of a fire-extinguishing sheet including a fire-extinguishing agent and binding agent, wherein the fire-extinguishing agent is capable of generating a fire-extinguishing component by thermal decomposition upon reaching a prescribed temperature, the fire-extinguishing agent comprises tripotassium citrate and potassium chlorate, and the binding agent comprises polyvinyl butyral. the method includes the steps of dissolving the binding agent into a solvent to obtain a solution of the binding agent, mixing tripotassium citrate and potassium chlorate in a solvent and milling the mixture to obtain a fire-extinguishing agent slurry, mixing the solution of the binding agent and the fire-extinguishing agent slurry and milling the mixture to obtain a coating material, coating the coating material on a sheet and drying the coating material on the sheet and optionally cutting the sheet.