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Multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric, preparation method and application

A composite fabric and thermal insulation technology, applied in chemical instruments and methods, applications, protective clothing, etc., can solve the problems of heat concentration on the surface of the material, human body burns, overheating damage, etc., and achieve high-efficiency safety protection, reasonable function sharing, and low-temperature heat insulation. Guaranteed effect

Active Publication Date: 2012-11-21
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric, preparation method and application
  • Multistage-spreading heat-dissipation fire-proof heat-insulation composite fabric, preparation method and application

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preparation example Construction

[0055] The present invention also provides a method for preparing the above-mentioned fire-proof and heat-insulating composite fabric with multi-stage expansion and heat dissipation. After the finished layers or compound layers are stitched and fixed first, the metal foil 11 is uniformly and point-bonded to the front with a high-temperature-resistant adhesive to form an airtight, flat, and undamaged natural thickness of 5-15mm. The actual compaction thickness is 3-8mm, and the square meter mass is 400-1500g / m 2 The fire-resistant and heat-insulating composite fabric includes all layers except the lining fabric 32 and the fire-resistant comfort layer 4 to form a multi-stage heat dissipation channel 5 .

[0056] More preferably, the natural thickness of the sum of the phase-change temperature-limiting layer 2 and the spacer composite film insulation layer 3 is ≤14mm, and the mass per square meter is ≤1100g / m 2 .

Embodiment 1

[0059] Adopt the four-layer structure of the fire-proof and heat-insulating composite fabric with multi-stage expansion and heat dissipation of the present invention and the materials in the following table, and adopt the preparation method of the present invention to prepare the fire-proof and heat-insulating composite fabric, and place it under the fire conditions of 800°C , the measured inner side is the highest temperature and the maximum duration of the reverse limit as shown in the following table embodiment 1 column. The actual visual observation shows that the surface is intact, and there are no obvious embrittlement points or cracks when rubbing and bending. After cooling, put it into the same fire field conditions again, the limited maximum temperature and the longest duration time of the second treatment obtained are shown in the table below, indicating that there is no change; Kneading and bending without obvious embrittlement points or cracks. This proves that th...

Embodiment 2

[0061] Using the four-layer structure of the fire-proof and heat-insulating composite fabric with multi-stage expansion and heat dissipation of the present invention and the materials in the following table, and using the preparation method described in the present invention to prepare the fire-proof and heat-insulating composite fabric, place it under the fire conditions of 1000 ° C , The measured inner side is the highest temperature defined by the reverse side and its longest duration as shown in the second column of the following table embodiment. The actual visual observation shows that the surface is intact, and there are no obvious embrittlement points or cracks when rubbing and bending. After cooling, put it into the same fire site again. The maximum limited temperature and the longest duration of the obtained second treatment are shown in the table below. It shows that there is no change, and the longest duration is slightly increased, which is the material. It is cau...

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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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A41D31/02B32B15/14B32B15/08B32B3/12B32B15/02B32B37/00B32B37/12
Inventor 于伟东郝立才王科王鲁州
Owner DONGHUA UNIV
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