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Fire-proofing and heat-insulating composite fabric with second order phase transition temperature limit, and preparation method and application thereof

A composite fabric, temperature-limiting technology, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problems of short pause time, burns or burns, and weak flame impact resistance of thermal protective fabrics or clothing, reaching Easy to adjust the structure and the effect of forming processing

Inactive Publication Date: 2015-07-08
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the fabric has good flame-retardant and anti-static properties, it will still cause burns and burns quickly when it is actually used in a high-temperature fire scene.
[0011] Although the thermal protection fabric or clothing obtained by the above patented technology has a good fire-proof and heat-insulating effect, in practical applications, the thermal protection fabric or clothing has the problems of weak flame impact resistance and short pause time in the fire field. Burns or burns will occur within a few seconds to tens of seconds when worn in a high-temperature fire field. The essence is that the thermal insulation and high-temperature durability of textile materials in the face of a strong heat flow environment in a fire field are insufficient.

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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  • Fire-proofing and heat-insulating composite fabric with second order phase transition temperature limit, and preparation method and application thereof
  • Fire-proofing and heat-insulating composite fabric with second order phase transition temperature limit, and preparation method and application thereof

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preparation example Construction

[0058] The present invention also provides a method for preparing the above-mentioned two-stage phase change step temperature-limited fire-proof and heat-insulating composite fabric, which is characterized in that the steps are: firstly, the above-mentioned metal foil 11 except the metal foil felt heat-reflecting composite layer 1 The finished layers or compound layers are stitched and fixed to form a composite fabric, and then the metal foil 11 is uniformly and point-bonded on the outermost surface with a high-temperature-resistant adhesive to form a natural thickness of 5-15mm, and the actual compression The thickness is 3-8mm, and the square meter mass is 400-1500g / m 2 A two-stage phase change ladder temperature-limited fire-resistant and thermally insulating composite fabric.

[0059] More preferably, the natural thickness of the sum of the first phase-change temperature-limiting layer 2, the second phase-change temperature-limiting layer 3 and the spacer composite film in...

Embodiment 1

[0062] Using the five-layer structure of the fire-proof and heat-insulating composite fabric with two-stage phase change step temperature limit 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 at 800 ° C Under the conditions of the fire scene, the maximum temperature and the maximum duration of the measured inner side, namely the reverse side, are shown in the Example 1 column of the table below. Actual visual observation shows that the surface is intact, and there are no obvious embrittlement points or cracks when kneading 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 cr...

Embodiment 2

[0064] Using the five-layer structure of the fire-proof and heat-insulating composite fabric with two-stage phase change step temperature limit of the present invention and the materials in the following table, and using the preparation method of the present invention to prepare the fire-proof and heat-insulating composite fabric, place it at 1000 ° C Under the conditions of the fire scene, the maximum temperature and the maximum duration of the measured inner side, namely the reverse side, are shown in the column of Example 2 in the following table. Actual visual observation shows that the surface is intact, and there are no obvious embrittlement points or cracks when kneading 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 caused ...

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Abstract

The invention relates to a fire-proofing and heat-insulating composite fabric with second order phase transition temperature limit, and a preparation method and application thereof. The composite fabric is composed of a heat reflection layer, two phase transition temperature limit layers, and an interval composite heat-insulating layer, which are at a right side, and a fire-retardant composite layer at a back side; and the layers are arranged in a laminated structure. When the right side of the composite fabric is effected by an open fire strong heat flow environment, the back side can maintain a safe temperature state close to human skin below 50 DEG C; and the whole fabric morphology and mechanical property are stable. The composite fabric has a natural thickness of 5-15mm, a compaction thickness of 3-8mm and weight per square meter of 400-1500g / m<2>, and is a completely closed, adhesive, sewed fire-proofing and heat-insulating fabric. The composite fabric can be used for individual protection and environment heat insulation in special high-temperature occasions, such as fire protection, military, adventure, safe escape and industry.

Description

technical field [0001] The invention relates to light and thin flexible composite material technology for heat insulation and protection of human body or ambient temperature. It is an important material for various body protection and environmental heat insulation in occasions, and belongs to the field of textile composite materials and functional technical textiles. Background technique [0002] Fire and special occasions, such as exploration, open fire and high temperature construction, space technology, war, etc., all have fire protection and heat insulation requirements. Therefore, the development and application of fire-resistant and heat-insulating fabrics has always been a hot spot in practical research. There are many potential dangers in the hot environment of the fire site: the high temperature environment of the fire site, especially the risk of burns to the human body from radiant heat; the danger of human body burns caused by the ignition of protective equipmen...

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 Patents(China)
IPC IPC(8): B32B3/12B32B15/02B32B15/08B32B15/14B32B27/02B32B7/12B32B37/12
Inventor 于伟东杜赵群郝立才陈金静王科王鲁州
Owner DONGHUA UNIV
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