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Low thermal conductivity glass fiber composite material and preparation method thereof

A low thermal conductivity, composite material technology, applied in chemical instruments and methods, glass/slag layered products, lamination auxiliary operations, etc., can solve problems such as high thermal conductivity, poor cotton fastness, fiber falling, etc., Achieve the effect of low thermal conductivity and superior thermal conductivity

Active Publication Date: 2020-01-14
富仕德新材料制造(淮安)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary glass fiber needle-punched cotton has high thermal conductivity and unsatisfactory thermal insulation effect in some special fields such as automotive insulation materials.
In addition, the poor fastness of cotton can cause fiber drop, which is very irritating to people.

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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  • Low thermal conductivity glass fiber composite material and preparation method thereof
  • Low thermal conductivity glass fiber composite material and preparation method thereof
  • Low thermal conductivity glass fiber composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment discloses a glass fiber composite material with low thermal conductivity, which includes a cotton non-woven fabric layer, a hot-melt adhesive film layer, and a glass fiber cloth layer. Airgel powder is dispersed in the cotton non-woven fabric layer; the cotton non-woven fabric layer The upper and lower sides of the non-woven fabric layer are respectively combined with the glass fiber cloth layer through the hot melt adhesive film layer.

Embodiment 2

[0027] This embodiment discloses a method for preparing the above-mentioned low thermal conductivity glass fiber composite material, comprising the following steps:

[0028] Step 1. Disperse the airgel powder into each layer of cotton net through the powder-dispersing device, and then form a cotton felt by needling the several layers of cotton nets dispersed with the airgel powder;

[0029] Step 2. Apply the hot melt adhesive on the surface of the cotton felt;

[0030] Step 3: Composite glass fiber cloth on the surface of the cotton felt.

[0031] In some embodiments, the airgel powder is silica airgel powder, and other prior art airgel powders should also fall within the protection scope of the present invention.

[0032] The hot melt adhesive is one of PA, PES and TPU, and the hot compress temperature is 140-180°C.

[0033] The present invention reduces the thermal conductivity of the material by adding airgel powder, and then covers the cotton with a layer of inorganic fi...

Embodiment 3

[0037] Such as figure 1 , 4 As shown in , 5, this embodiment discloses a powder loosening device, comprising a powder container 11, a powder inlet is provided on the top or upper part of the powder container 11, and a rotating shaft 12 is provided in the inner cavity of the powder container 11; the rotating shaft 12 is connected to the container The bottom of the powder box 11 is rotatably connected by a bearing, and the rotating shaft 12 is driven by a motor. The bottom of the powder container 11 is provided with two groups of first lower powder holes, and the two groups of first lower powder holes are symmetrically distributed around the rotating shaft 12; figure 2 As stated, the two empty bins 13 are arranged symmetrically on both sides of the rotating shaft 12 and are connected to the rotating shaft 12, and each empty bin 13 is limited between the corresponding first lower powder hole and the rotating shaft 12; One side of the first lower powder hole is open; two sieve ...

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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PUM

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Abstract

The invention discloses a glass fiber composite material with low thermal conductivity. The glass fiber composite material comprises a cotton non-woven fabric layer, hot melt adhesive film layers andglass fiber fabric layers, wherein aerogel powder is dispersed in the interior of the cotton non-woven fabric layer; and the upper and lower sides of the cotton non-woven fabric layer are respectivelycompounded with a glass fiber fabric layer through a hot melt adhesive film layer. The invention also discloses a method for preparing the glass fiber composite material with low thermal conductivity. The glass fiber composite material provided by the invention has the following advantages: the thermal conductivity is reduced; and after compounding of the glass fiber composite material, the fastness of components is large, and powder is prevented from falling down.

Description

technical field [0001] The invention relates to the technical field of functional textile products, in particular to a glass fiber composite material with low thermal conductivity and a preparation method thereof. Background technique [0002] Glass fiber is an inorganic non-metallic material with excellent performance. It has various types and has the advantages of good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. It is made of glass balls or waste glass through high-temperature melting, wire drawing, winding, weaving and other processes. The diameter of its single filament is several microns to more than 20 microns, which is equivalent to a hair. 1 / 20-1 / 5 of that, each bundle of fiber precursors consists of hundreds or even thousands of monofilaments. [0003] Glass fiber needle-punched felt is a kind of composite material. By compounding glass fiber on needle-punched cotton, a multi-layer functional textile material is obtai...

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): B32B9/02B32B17/02B32B5/06B32B7/12B32B17/12B32B9/04B32B37/12B32B38/00
CPCB32B5/06B32B5/26B32B7/12B32B9/047B32B17/067B32B37/1207B32B38/00B32B2037/1223B32B2038/008B32B2250/02B32B2250/20B32B2262/062B32B2262/101B32B2307/30
Inventor 王少伟邵亚国
Owner 富仕德新材料制造(淮安)有限公司