Infrared stealth type porous silicon heat insulation car cover material and preparation method thereof

By constructing a functional integrated double-layer composite structure using modified porous silica powder and flake aluminum powder, the shortcomings of car cover materials in terms of heat insulation performance, infrared stealth, and flexibility are solved, thus achieving safety protection for new energy vehicles in high-temperature environments.

CN122037754APending Publication Date: 2026-05-15韩玉伟
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Patent Information

Application Number
CN202610368196.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-24
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing car cover materials are insufficient in terms of heat insulation performance, infrared stealth capability, flexibility, weather resistance and processability, making it difficult to meet the safety protection needs of new energy vehicles in high-temperature environments.

Method used

A functionally integrated double-layer composite structure is constructed using modified porous silicon powder, flake aluminum powder, and infrared absorbing pigments. Through the synergistic effect of the porous silicon heat insulation layer and the infrared stealth control layer, extremely low thermal conductivity and infrared emissivity are achieved. Components such as high-elastic aliphatic waterborne polyurethane are added to improve the material's flexibility and weather resistance.

Benefits of technology

The material has extremely low thermal conductivity, low infrared emissivity, good flexibility and weather resistance, and can maintain efficient heat insulation and infrared stealth performance over a wide temperature range, making it suitable for large-scale production.

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Abstract

The invention discloses an infrared stealth type porous silicon heat insulation car cover material and a preparation method thereof. The material is prepared from functional components such as modified porous silicon powder, high-elasticity aliphatic waterborne polyurethane, organic silicon modified acrylic emulsion, nano cellulose, a liquid polybutadiene toughening agent, a silane coupling agent, flaky aluminum powder, infrared absorption pigment and graphene microchips according to a specific proportion. Through a special charging sequence and a dispersing process, a double-layer composite structure with integrated functions is formed in situ in a primary coating and curing process, the bottom layer is a porous silicon heat insulation layer, and the surface layer is an infrared stealth regulation and control layer; according to the structure, the material has extremely low heat conductivity coefficient and infrared emissivity while maintaining excellent flexibility, bending resistance and adhesive force, the dual functions of efficient heat insulation and infrared detection resistance are achieved, and the material is environmentally friendly, simple in process and suitable for large-scale production.
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