Geopolymer-Aerogel Composite Layer for Fire Resistance
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Solution Overview
Problem
Current structural insulating panels lack effective fire resistance and thermal insulation, particularly when exposed to high temperatures, limiting their application in building and container insulation.
Innovation Solution
A geopolymer-aerogel composite layer is integrated between a foam material and a facing in structural insulating panels, formed by curing a geopolymer precursor-aerogel composition comprising an aluminosilicate reactant, alkaline activator, aerogel additive, and continuous medium, providing enhanced fire resistance and thermal insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional structural insulating panels are used, then the structure provides basic insulation, but the fire resistance and thermal insulation performance are insufficient when exposed to high temperatures
Solution Approach 1:
The patent applies composite materials by combining geopolymer matrix with aerogel particles to create a geopolymer-aerogel composite layer. This composite structure provides both structural integrity and superior thermal insulation properties, effectively reducing thermal energy transfer while maintaining fire resistance. The aerogel particles dispersed in the geopolymer matrix create a multi-phase composite that outperforms traditional single-material insulation panels.
Solution Approach 2:
The patent utilizes porous materials through the incorporation of aerogel, which is a highly porous material with extremely low thermal conductivity. The aerogel particles introduce a porous structure into the composite layer, creating numerous air pockets that impede heat transfer pathways. This porous architecture is key to achieving the low thermal energy transfer observed in the fire-resistant structure.
2Loss of energy
If foam material is used for insulation, then thermal insulation is provided, but fire resistance is compromised under high temperature exposure
Solution Approach 1:
The geopolymer-aerogel composite layer serves as an intermediary barrier between the external fire exposure and the internal foam insulation material. This intermediate layer protects the foam from direct high-temperature exposure, preventing thermal degradation while maintaining the foam's insulating function. The composite layer absorbs and reflects thermal energy, acting as a protective mediator that preserves both fire resistance and thermal insulation performance.
Solution Approach 2:
The patent employs composite materials to create a multi-functional protective layer that simultaneously addresses both thermal insulation and fire resistance requirements. The geopolymer-aerogel composite combines the thermal insulating properties of aerogel with the high-temperature stability of geopolymer, creating a material that protects the foam substrate from thermal damage while maintaining insulation efficiency.
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 geopolymer-aerogel composite layer significantly reduces thermal energy transfer to the foam material, offering improved fire resistance and thermal insulation compared to traditional panels, as demonstrated by lower temperature rises under similar heating conditions.
Implementation Method 1
The geopolymer-aerogel composite layer significantly reduces thermal energy transfer to the foam material, offering improved fire resistance and thermal insulation
Implementation Method 2
The geopolymer-aerogel composite layer is formed by curing a geopolymer precursor-aerogel composition having an aluminosilicate reactant, an alkaline activator
Data Source
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AI summary
Geopolymer precursor-aerogel compositions. As an example, a geopolymer precursor-aerogel composition can include an aluminosilicate reactant, an alkaline activator, an aerogel additive, and a continuous medium.