Warm-keeping fabric taking polyurethane aerogel as interlayer material and preparation method of warm-keeping fabric

An interlayer material and aerogel technology, applied in the field of thermal fabrics, can solve the problems of difficulty in meeting the requirements of clothing materials, insufficient softness, etc., and achieve good thermal insulation function, good thermal insulation effect, and the effect of improving softness.

Active Publication Date: 2021-02-05
南京汇科高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the research status of the prior art, polyurethane aerogels are widely used in the field of building materials, and there are obvious researches in the field of home improvement clothing. The main reason is that its softness is not enough to meet the material requirements for clothing preparation.

Method used

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  • Warm-keeping fabric taking polyurethane aerogel as interlayer material and preparation method of warm-keeping fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A kind of thermal insulation fabric with polyurethane airgel as interlayer material, its method preparation comprises the steps:

[0059] (1) Add 0.75mol of pentaerythritol into a three-necked flask, and vacuumize at 90-92°C for 1.5h to remove moisture;

[0060](2) Add 300mL dimethyl sulfoxide as a solvent, control the temperature to 70°C, add 0.075mol toluene diisocyanate and 0.015mol dibutyltin dilaurate to react, and the reaction time is 1.5h;

[0061] (3) After the reaction is completed, add 3mL silicone softener (model: SI-R101, Laiyang Shengbang Silicone Technology Co., Ltd.), and stir well;

[0062] (4) Put it in the mold and let it stand for 18 hours to make it into a wet gel. The size of the mold is: 100cm×50cm×5cm (length×width×thick); put the wet gel into a large amount of deionized water for replacement for 3 days, 24h for deionized water;

[0063] (5) via CO 2 Supercritical drying makes thin-layer soft polyurethane airgel a, and the electron microscope p...

Embodiment 2

[0066] A kind of thermal insulation fabric with polyurethane airgel as interlayer material, its method preparation comprises the steps:

[0067] (1) Add 0.5mol of pentaerythritol into a three-necked flask, and vacuumize at 90-92°C for 1.5h to remove moisture;

[0068] (2) Add 250 mL of dimethyl sulfoxide as a solvent, control the temperature at 60 ° C, add 0.05 mol of toluene diisocyanate and 0.01 mol of dibutyltin dilaurate to react, and the reaction time is 1.5 h;

[0069] (3) After the reaction is completed, add 5mL silicone softener (model: SI-R101, Laiyang Shengbang Silicone Technology Co., Ltd.), and stir evenly;

[0070] (4) Put it in a mold and let it stand for 12 hours to make it into a wet gel. The size of the mold is: 100cm×50cm×5cm (length×width×thick); put the wet gel into a large amount of deionized water for replacement for 4 days. 24h for deionized water;

[0071] (5) via CO 2 Supercritical drying to prepare a thin layer of soft polyurethane airgel b;

[00...

Embodiment 3

[0074] A kind of thermal insulation fabric with polyurethane airgel as interlayer material, its method preparation comprises the steps:

[0075] (1) Add 1.0mol of pentaerythritol into a three-necked flask, and vacuumize at 90-92°C for 1.5h to remove moisture;

[0076] (2) Add 350mL dimethyl sulfoxide as a solvent, control the temperature at 80°C, add 0.1mol toluene diisocyanate and 0.02mol dibutyltin dilaurate to react, and the reaction time is 2h;

[0077] (3) After the reaction is completed, add 7mL silicone softener (model: SI-R101, Laiyang Shengbang Silicone Technology Co., Ltd.), and stir evenly;

[0078] (4) Put it into a mold and let it stand for 24 hours to make it into a wet gel. The size of the mold is: 100cm×50cm×5cm (length×width×thick); put the wet gel into a large amount of deionized water for replacement for 4 days, 24h for deionized water;

[0079] (5) via CO 2 Supercritical drying to prepare a thin layer of soft polyurethane airgel c;

[0080] (6) Put the ...

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 relates to a warm-keeping fabric taking polyurethane aerogel as an interlayer material and a preparation method of the warm-keeping fabric, and the preparation method comprises the following steps: firstly, preparing soft polyurethane aerogel, then putting the soft polyurethane aerogel between two layers of polyester fibers, and carrying out hot press molding on the two layers of polyester fibers and the polyurethane aerogel by adopting a hot press method to prepare the warm-keeping fabric. The warm-keeping fabric with the polyurethane aerogel as the interlayer material has the advantages of being light in weight, good in warm-keeping effect, good in softness and the like, and has good application prospects.

Description

technical field [0001] The invention belongs to the field of thermal insulation fabrics, and in particular relates to a thermal insulation fabric with polyurethane airgel as an interlayer material and a preparation method thereof. Background technique [0002] Airgel is a superporous structure obtained by wet gel after removing the liquid medium, which is a nanoporous amorphous solid material. In 1931, Kistler of Stanford University prepared airgel by hydrolyzing water glass with hydrochloric acid combined with supercritical drying technology, which marked the birth of airgel. Since then, many studies related to aerogels have been reported, and since then, aerogel materials have received extensive attention in the field of materials. [0003] Polyurethane is the abbreviation of polyurethane, which is a polymer material containing the characteristic unit of carbamate group (-NHCOO-) in the molecular chain segment. Most of the properties of polyurethane products obtained thr...

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): B32B27/02B32B27/36B32B27/40B32B3/24B32B27/12B32B37/10C08L75/04C08L83/04C08J9/12C08G18/32C08G18/76C08G101/00
CPCB32B27/40B32B27/12B32B3/266B32B37/10C08J9/122C08J9/0061C08G18/3206C08G18/7614B32B2262/0276B32B2307/304C08G2101/00C08J2205/026C08J2203/06C08J2203/08C08J2375/04C08J2483/04
Inventor 崔永明赵逸飞石从众陈悟董雄伟朱立成
Owner 南京汇科高分子材料有限公司
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