Fireproof heat-insulation heat-preservation composite material as well as preparation method and application thereof

By combining a continuous refractory fiber braided layer with bimetallic hydroxide and flexible aerogel, the problems of insufficient heat resistance and poor breathability of fire suits in high-temperature environments are solved, providing a lightweight and comfortable fireproof and heat-insulating composite material suitable for fire suits and industrial high-temperature operation protection.

CN122275378APending Publication Date: 2026-06-26INSTITUTE OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES
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Patent Information

Application Number
CN202610459685.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-09
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing fire suits have insufficient heat resistance in high-temperature environments, are bulky and uncomfortable to wear, have poor breathability, have unreasonable connection methods and pose safety hazards, and have an imbalance in thermal insulation, especially in extreme temperature environments.

Method used

It adopts a combination of continuous fire-resistant fiber woven layer, bimetallic hydroxide and flexible aerogel, and is connected by weaving and quilting to form a composite material with a balanced flame-retardant and fireproof outer layer and a heat-insulating inner layer. It avoids polymer adhesives and ensures breathability and safety.

Benefits of technology

It achieves fireproof and heat insulation effects with strong heat resistance, good breathability, and lightweight comfort at high temperatures. It can maintain heat insulation performance above 1050℃, has low thermal conductivity, high tensile strength, and high moisture permeability, making it suitable for fire suits and industrial high-temperature operation protection.

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Abstract

The invention relates to a fireproof heat-insulation composite material and a preparation method and application thereof, the fireproof heat-insulation composite material comprises an outer layer and an inner layer which are laminated, and the outer layer and the inner layer are connected through weaving and / or quilting; the outer layer comprises a first woven layer woven by first continuous refractory fibers, and bimetal hydroxides grow on the surfaces of the first continuous refractory fibers in an in-situ epitaxial mode; the inner layer comprises a second woven layer woven by second continuous refractory fibers, and flexible aerogel is arranged on the surface and / or a cavity of the second woven layer; the interlayer anions of the double metal hydroxide comprise carbonate radicals and / or bicarbonate radicals. The continuous refractory fibers are adopted, so that flame retardance, fire prevention and heat insulation are facilitated; the double-metal hydroxide on the outer layer can release interlayer water and hydroxyl water at high temperature, interlayer anions can be decomposed into carbon dioxide, and active cooling and open fire extinguishing are achieved; the flexible aerogel of the inner layer is beneficial to heat insulation and heat preservation; the connection mode avoids using a polymer adhesive, and the air permeability is good.
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