Multilayer Fire-Resistant Material with Chemical Bonding
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Solution Overview
Problem
Conventional fire-resistant materials tend to rapidly carbonize and crack when exposed to flames, leading to direct heat transfer to the interior and reduced fire resistance duration due to the lack of chemical bonding between organic and inorganic components.
Innovation Solution
A multilayer fire-resistant material composed of organic/inorganic composites, where inorganic particles with reactive functional groups are chemically bonded to an organic matrix, forming a char layer that maintains structural integrity and prevents cracking, thereby enhancing mechanical and fire-resistant properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fire-resistant materials are exposed to flame, then rapid carbonization and foaming occur to resist fire, but the material cracks and peels after long term heating, allowing heat to transfer to the interior
Solution Approach 1:
The invention uses an organic/inorganic composite material where inorganic particles (such as metal hydroxides, metal oxides, or ceramic particles) are dispersed in an organic polymer matrix. This composite structure combines the fire-resistant properties of inorganic materials with the binding capabilities of organic polymers, creating a char layer that maintains structural integrity during prolonged fire exposure without cracking or peeling.
2Object-affected harmful factors
If organic polymer and inorganic flame retardant are physically blended, then flame retardant properties are achieved, but the material easily melts, ignites, or produces flaming drops under exposure to flame
Solution Approach 1:
The invention creates a composite material where inorganic flame retardant particles are dispersed within an organic polymer matrix. The inorganic particles (such as metal hydroxides, metal oxides, or ceramic particles) provide flame retardancy while the organic polymer provides structural binding. This composite structure prevents the material from easily melting or igniting under flame exposure, as the inorganic particles reinforce the organic matrix and reduce its flammability.
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 multilayer structure effectively prevents heat transfer to the interior, significantly extending the duration of fire resistance and meeting UL94-V0 standards by maintaining the structural integrity of the char layer without cracking.
Implementation Method 1
inorganic particles having a second reactive functional group, wherein the inorganic particles are chemically bonded to the organic component via a reaction between the first and the second reactive functional groups
Implementation Method 2
the heated area of the conventional fire resistant material can be carbonized rapidly and expand 8 ̃10 times in volume over the original material size due to foaming, intumescent, and carbonization agents contained therein
Implementation Method 3
the heated area of the conventional fire resistant material can be carbonized rapidly and expand 8 ̃10 times in volume over the original material size due to foaming, intumescent, and carbonization agents contained therein
Implementation Method 4
the heated area of the conventional fire resistant material can be carbonized rapidly and expand 8 ̃10 times in volume over the original material size due to foaming, intumescent, and carbonization agents contained therein
Implementation Method 5
The multilayer structure effectively reduces penetrating cracks or peeling that easily occurs in single layer structures
Data Source
AI summary
A multilayer fire-resistant material is provided, which comprises two or more layers formed of homogeneous or heterogeneous materials, with at least one layer being an organic/inorganic composite. The organic/inorganic composite comprises an organic component of a polymer, oligomer, or copolymer having a first reactive functional group, and inorganic particles having a second reactive functional group. The inorganic particles are chemically bonded to the organic component via a reaction between the first and the second reactive functional groups.