Fire-proof and heat-insulating composite fabric with multi-stage expansion and heat dissipation, preparation method and application

Abstract

The invention relates to a preparation method and an application of multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric. The multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric is formed by successively arranging and laminating a metal foil reflection layer, a phase change temperature limitation layer, an interval composite membrane heat-insulation layer and a flame-retardant comfortable layer, wherein the metal foil reflection layer has high reflectivity and an enhanced heat-dissipation function; the phase change temperature limitation layer has functions of high energy consumption absorption and evenly-distributed heat conduction; the interval composite membrane heat-insulation layer has the functions of reflection insulation and even distribution of heat; and the flame-retardant comfortable layer has the functions of low-contact heat conduction, heat insulation and comfort. When the front side of the multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric is under the action of open fire and strong heat flow environment, the back side of the multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric can be kept below 50DEG C which is near the safe temperature state of the human skin, and the integral structural form and the mechanical property are stable. The natural thickness of the composite fabric is 5-15mm, the compression thickness of the composite fabric is 3-8mm, and the square meter quality of the composite fabric is 400-1500g / m<2>. The composite fabric is fire-proof heat-insulation material which is totally sealed, stuck and sewn and can be used for individual protection and environment heat insulation in special high-temperature occasions, such as fire control, military, exploration, safe escape and industry and the like.

Description

technical field [0001] The invention relates to the light and thin flexible composite material technology for heat insulation and protection of human body or environment temperature, and relates to the preparation and application of a multi-stage heat-dissipating fire-proof and heat-insulating composite fabric. The fire-proof and heat-insulating composite fabric is suitable for human body protection and environmental heat insulation in special occasions such as fire protection, military affairs, exploration, industry, etc., and belongs to the field of textile composite materials and functional technical textiles. Background technique [0002] In high-temperature and strong-heat environments such as fire sites, the most important potential dangers include: the high-temperature environment of the fire site, especially the risk of burns to the human body from radiant heat; the ignition of protective equipment by flames and the high-speed heat conduction caused by contact with th...

AI Technical Summary

Problems solved by technology

[0010] Although the heat protection fabric or heat insulation film prepared by the above patented technology has good radiation resistance and heat penetration performance, in practical applications, due to the limitation of the aluminum foil polymer matrix and thermal conductivity, it is affected by high temperature and strong heat. It is easy to cause heat concentration on the surface of the material and local overheating damage. For example, the human body will be burned or burnt in a very short time if used in a high-temperature fire field of 800-1000 ° C.

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