High-temperature-resistant and flame-retardant modified asphalt waterproofing membrane

By designing a modified asphalt layer, a graphene aerogel sandwich layer, and a nano-flame-retardant gradient layer, the problems of performance degradation and insufficient flame retardancy of asphalt waterproof membranes at high temperatures are solved, achieving excellent flame retardant performance and heat dissipation capacity in high-temperature environments, and extending the service life of the material.

CN224363464UActive Publication Date: 2026-06-16JINDUN BUILDING MATERIALS (TANGSHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINDUN BUILDING MATERIALS (TANGSHAN) CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Existing asphalt waterproof membranes are prone to physical degradation under high temperature conditions, resulting in decreased waterproof performance, insufficient flame retardancy, and difficulty in meeting building fire protection requirements. Furthermore, they have insufficient heat dissipation capacity, are prone to aging and cracking, produce excessive smoke in fires, and have a short lifespan.

Method used

The design employs a modified asphalt layer, a graphene aerogel sandwich layer, and a nano-flame-retardant gradient layer, combined with flame-retardant additives such as aluminum hydroxide and zinc borate, to enhance the high-temperature stability and flame-retardant properties of the material. Through the active heat dissipation of the graphene aerogel and the multi-layer synergistic effect of the nano-flame-retardant gradient layer, efficient flame retardancy and heat insulation are achieved.

Benefits of technology

It maintains structural stability at 800℃, possesses excellent flame retardant properties and active heat dissipation capabilities, reduces combustion heat and smoke generation, extends material life, and meets waterproof and fireproof requirements in high-temperature environments.

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Abstract

The utility model discloses a kind of high-temperature-resistant, fire-retardant modified asphalt waterproofing membrane, including waterproof main body, the modified asphalt layer is arranged in waterproof main body inside.The high-temperature-resistant, fire-retardant modified asphalt waterproofing membrane, through the setting of graphene aerogel sandwich layer and nano fire-retardant gradient layer, the waterproofing membrane design integration graphene aerogel sandwich layer and nano fire-retardant gradient layer, fire-retardant additive aluminium hydroxide, zinc borate decompose and inhibit combustion when meeting fire, anti-aging agent absorbs ultraviolet rays to prevent asphalt decomposition, graphene aerogel sandwich layer is composed of graphene three-dimensional network and phosphate fire-retardant aerogel, can keep structure stable under 800 ℃, lower than heat conductivity coefficient, with initiative heat dissipation capacity and excellent fire-retardant performance, nano fire-retardant gradient layer, by stable phosphate glass and fire-retardant gas generated by decomposition, reduce combustion heat and smoke, guarantee the durability and reliability of material under extreme conditions.
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