Heat insulation composition for improving heat insulation and soundproofing functions, containing aerogel, and method for manufacturing heat insulation fabric by using same
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Solution Overview
Problem
Aerogel's low mechanical stability and reduced heat insulation properties when coated with polymers pose challenges in creating effective heat insulation and soundproofing materials.
Innovation Solution
A heat insulating material composition is developed by mixing aerogel powder with an adhesive binder, carbon black powder, and additives like mineral oxides and aqueous acrylic resin, which is then applied to fabrics using a specific manufacturing method to enhance heat insulation and soundproofing properties while maintaining mechanical stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If polymer coating is applied to aerogel surface, then mechanical stability is improved, but heat insulation property is significantly decreased
Solution Approach 1:
The patent uses aerogel, a highly porous material with 98% air content, as the core insulation component. The porous structure provides excellent heat insulation while maintaining low density. The polymer coating is applied only on the surface without penetrating into the porous interior, thus preserving the thermal insulation properties while providing mechanical stability.
Solution Approach 2:
The patent creates a composite material system combining aerogel particles with polymer coating. The aerogel provides thermal insulation functionality while the polymer matrix provides structural stability. This composite approach allows both materials to contribute their respective advantages without compromising each other's properties.
2Loss of energy
If aerogel is used as insulation material, then heat insulation property is improved, but mechanical stability deteriorates due to high porosity and low density
Solution Approach 1:
The patent applies a thin polymer film or coating on the surface of aerogel particles. This thin protective layer provides mechanical strength and structural stability to the fragile aerogel without significantly affecting its thermal insulation properties, as the coating thickness is minimized to preserve heat transfer resistance.
Solution Approach 2:
The polymer coating acts as an intermediary between the aerogel particles and the external environment. It provides mechanical support and protection to the aerogel structure while allowing the aerogel to maintain its thermal insulation functionality. The coating serves as a bridge that connects the structural requirements with the thermal performance requirements.
3Strength
If polymer penetrates into aerogel interior, then mechanical stability is improved, but porosity is reduced and heat insulation property decreases
Solution Approach 1:
The patent specifically designs the polymer coating to remain on the surface of aerogel particles without penetrating into the porous interior. This surface-only coating approach maintains the high porosity (98% air content) of the aerogel, which is critical for its thermal insulation performance, while still providing the necessary mechanical stability through the external polymer layer.
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 composition significantly improves heat insulation and soundproofing performance at both low and high temperatures, prevents surface cracking, and maintains open pores, effectively addressing the limitations of traditional aerogel-based materials.
Implementation Method 1
aerogel... has very low heat conductivity, it is highly favored as a heat insulation material
Implementation Method 2
carbon black powder... for further improving heat insulation and soundproofing properties
Implementation Method 3
adhesive binder... for further improving heat insulation and soundproofing properties
Implementation Method 4
maintains open pores... effectively addressing the limitations of traditional aerogel-based materials
Data Source
Figure 1
AI summary
The present invention relates to a heat insulation composition, containing aerogel, with improved heat insulation and soundproofing properties, and a method for manufacturing a heat insulation fabric by using the same. The heat insulation composition is prepared by mixing solvent, aerogel powder, adhesive binder and carbon black powder, thereby improving the heat insulation property at an extremely low temperature and at a high temperature, and also enhancing the soundproofing property.