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Aerogel composite cloth taking hot melt adhesive as binder and preparation method for composite cloth

An aerogel and hot-melt adhesive technology is applied in the field of composite fabric and its preparation, and achieves the effects of easy quality control, excellent thermal insulation performance and simple process

Inactive Publication Date: 2014-09-10
航天海鹰(镇江)特种材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017]In order to solve the problems in the development and application of airgel fabrics that the airgel material is not firmly combined with the inner and outer fabrics, the airgel powder is easy to escape, and the airgel is transparent after compounding. To solve the problems of poor wettability and poor flexibility, the invention provides an airgel composite cloth with hot melt adhesive as a binder and a preparation method thereof

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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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The airgel material with a thermal conductivity of 0.016w / m·k and a thickness of 1.5mm is used as the core layer for polyester and spandex fiber blended non-woven fabric, and the above airgel material is cleaned and purged by a brush. Then the upper and lower surfaces are covered with PTFE hot melt adhesive, and the upper layer is covered with a grammage of 45g / m 2 , the yarn count density is 230T nylon woven fabric, and the weight of the lower layer is 110g / m 2 Polyester woven fabric, pressurized by a hot roller with a temperature of 120°C and a pressure of 800N, trimmed and packaged. The thermal conductivity coefficient of the obtained composite airgel cloth is 0.017w / m k, and the moisture permeability is 4500g / (m 2 ·24h)), the flexural rigidity is 0.6mN·cm, and no dust escapes from the surface of the cloth. The cloth can be used for cold clothing.

Embodiment 2

[0038] The acrylic fiber non-woven fabric is used for reinforcement, the thermal conductivity is 0.017w / m·k, and the airgel material with a thickness of 2mm is used as the core layer. The above airgel material is cleaned and purged through viscose. The upper and lower surfaces of the airgel material are covered with TPU hot-melt adhesive, the upper layer is covered with 150g PU artificial leather, and the lower layer is covered with 150g nylon woven fabric. Side wrap. The thermal conductivity coefficient of the obtained composite airgel cloth is 0.019w / m k, and the moisture permeability is 3600g / (m 2 ·24h)), the flexural rigidity is 1.3mN·cm, and no dust escapes from the surface of the cloth. The fabric can be used for cold-proof shoe uppers, sleeping bags, floor mats, etc.

[0039] All the fiber-reinforced airgel materials used in the present invention can be purchased from Aerospace Haiying (Zhenjiang) Special Materials Co., Ltd.

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 discloses aerogel composite cloth taking a hot melt adhesive as a binder and a preparation method for the aerogel composite cloth. The composite cloth takes a fiber enhanced aerogel material as a core layer, and a layer of fabric covers each of the upper part and the lower part of the core layer; the hot melt adhesive serving as the binder is arranged between the core layer and the fabrics. Sticky glue of the fiber enhanced aerogel material is cleaned and swept; after the hot melt adhesive covers the upper part and the lower part of the fiber enhanced aerogel material, the hot melt adhesive is respectively covered with layers of cloth; the aerogel composite cloth is cut and packaged after being pressurized by a hot roller. The aerogel composite cloth disclosed by the invention has the advantages of excellent heat insulation performance, high moisture permeation property, high softness, no dust escape and the like, and can be applied to a cold-resistant or fireproof tent, a sleeping bag, a floor mat, shoes, shoe insoles, cloths and hats as well as internal heat insulation decorations of automobiles, airplanes, ships and trains; the application field of the aerogel composite cloth is greatly expanded; furthermore, the technology is simple, the quality is easy to control, and the aerogel composite cloth is suitable for batch production.

Description

technical field [0001] The invention relates to a composite fabric and a preparation method thereof, in particular to an airgel composite fabric with a flexible fiber non-woven fabric reinforced airgel material as a core layer and upper and lower composite fabrics. Background technique [0002] Traditional cold-proof functional fabrics are mainly three-layer structure, the outer layer is nylon fabric with PU coating or PTFE film, the middle is fleece fabric or expanded PTFE material, and the inner layer is soft interlining. However, in extremely cold regions such as the north and south levels, ordinary cold-proof clothing often cannot protect scientific research personnel well, and it is urgent to develop a cold-proof fabric with better performance. [0003] Traditional fire-resistant fabrics are mainly used in high-temperature fields such as fire-fighting clothing. They are mainly composed of outer layers, waterproof and breathable layers, heat insulation layers, and comfo...

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): B32B7/12B32B37/06B32B37/10
Inventor 高志强张凌金承黎黄铌吴锦源许斌
Owner 航天海鹰(镇江)特种材料有限公司
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