High-composite-strength multi-layer thermal insulation material and application

A multi-layer heat insulation material and composite strength technology, applied in the direction of layered products, metal layered products, glass/slag layered products, etc., can solve the problems of woven body damage, woven body and non-woven body are not easy to compound, etc. Achieve the effects of improving weaving strength, increasing seamability, and improving high temperature resistance and heat insulation ability

Pending Publication Date: 2022-07-29
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a high composite strength multi-layer heat insulation material and its application, which overcomes the fact that the multi-layer braids in the prior art are prone to interlayer separation and the suture process is easy to cause The problem of braided body damage, and the problem that braided body and non-woven body are not easy to compound

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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  • High-composite-strength multi-layer thermal insulation material and application
  • High-composite-strength multi-layer thermal insulation material and application
  • High-composite-strength multi-layer thermal insulation material and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] see figure 1 As shown, a stitched multi-layer functional composite material includes a knitted body stitching unit and a non-woven body unit (a first non-woven body functional layer 30) stitched and connected to one side thereof; the knitted body stitched unit includes a knitted body functional layer 10 and the stitching layer 20 arranged on one side of the knitted body functional layer 10, the stitching layer 20 is a stitching coil structure; the first stitching hole 301 runs through the thickness direction of the first non-woven body functional layer 30, and the stitching layer 20 and the first stitching Between the non-woven body functional layer 30, the suture loop and the first suture hole 301 (such as Figure 7 shown) suture connection. The adjacent two first suture holes 301 are distributed in a trapezoid shape.

[0066] The sutured weft yarns 22 and the outermost high temperature resistant weft yarns 12 of the braided functional layer 10 are arranged in a 2:2 ...

Embodiment 2

[0072] see figure 2 As shown, a stitched multi-layer functional composite material, compared with Example 1, is different in that it includes two layers of non-woven body units, namely the first non-woven body functional layer 30 and the second non-woven body respectively. In the functional layer 31, the suture holes of the second non-woven functional layer 31 are the same as those of the first non-woven functional layer 30, and the second suture 41 sequentially penetrates the suture holes and the first suture on the second non-woven functional layer 31. The thread 40 is a protruding loop of the first non-woven functional layer 30 .

[0073] The second non-woven functional layer 31 is a plurality of silicon oxide aerogel rods with a length of 50 mm and a cross-section of 3╳3 mm, and the interval between each rod is 0.5 mm.

Embodiment 3

[0075] see image 3 As shown, a stitched multi-layer functional composite material, compared with Example 1, the difference is that the functional layer 10 of the braided body is a 10-layer shallow cross-bending structure. Others are substantially the same as those in Embodiment 1, and are not repeated here.

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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Abstract

The invention provides a high-composite-strength multi-layer thermal insulation material and application. The multi-layer functional composite material comprises a woven body sewing unit and a non-woven body unit which is at least connected with one side of the woven body sewing unit in a sewing manner, the woven body sewing unit comprises a woven body functional layer and a sewing layer at least arranged on one side of the woven body functional layer, and the sewing layer is of a sewing coil structure; a sewing hole penetrates through the non-woven body unit in the thickness direction, and the sewing layer and the non-woven body unit are in sewing connection through the sewing line ring and the sewing hole through the sewing line. By constructing the suture loop structure on the surface of the woven body suture unit, suture connection of the woven body suture unit and the non-woven body unit is achieved, the connection firmness can be guaranteed, the functionality of the woven body suture unit cannot be affected, operation is easy, and large-scale manufacturing is facilitated. The fabric is reasonable in structural design, can realize the integrity of the woven body sewing unit and the non-woven body unit, and has the effects of high temperature resistance, heat preservation and heat insulation at the same time.

Description

technical field [0001] The invention relates to the technical field of functional composite materials, in particular to a high-composite-strength multi-layer thermal insulation material and its application. Background technique [0002] High-performance fiber fabric is one of the textile composite materials that has attracted much attention in recent years. It is widely used in aerospace due to its advantages of good temperature resistance, high strength, high modulus, good impact resistance, and strong designability. , military, automotive, construction and other fields. At present, the new aerospace vehicles represented by the variable configuration rudder surface of hypersonic aircraft, the flexible thermal protection layer on the leeward surface of aerospace vehicle, and the flexible thermal protection system of variable configuration spacecraft are all suitable for flexible thermal insulation and thermal protection integrated thermal protection materials and structures....

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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IPC IPC(8): B32B9/00B32B5/08B32B5/06B32B9/04B32B17/02B32B17/12B32B15/02B32B15/14B32B3/08D03D15/513D03D27/08
CPCB32B5/02B32B5/26B32B5/06B32B3/08D03D15/513D03D27/08B32B2250/20B32B2262/101B32B2262/103B32B2262/106B32B2262/10B32B2307/306B32B2307/304
Inventor 李文斌李久刚刘洋何加浩刘可帅金鑫鹏徐卫林
Owner WUHAN TEXTILE UNIV
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