Preparation method of aerogel warm-keeping cloth

A technology of airgel and composite airgel, which is applied in dyeing, textiles and papermaking, etc. It can solve the problems that the metal film cannot breathe and perspire, affects the flexibility of the body, and will cause stuffiness, etc., and achieves excellent thermal insulation Effects of performance, high strength, increased strength and flame retardancy

Pending Publication Date: 2022-02-08
国佳凝胶科创中心(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, heavy clothes will affect the flexibility of the body, appear bloated and clumsy, and bring a lot of inconvenience to people's travel activities
Coating a layer of metal film on the surface of the clothes can effectively reflect the infrared rays radiated by the human body and achieve a good heat preservation effect, but the dense metal film cannot breathe and sweat, which will cause discomfort such as stuffy feeling

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

[0025] Follow the steps below to prepare an airgel thermal cloth:

[0026] S1. Add the diabase fiber to the NaOH solution with a concentration of 2mol / L at a weight ratio of 1:25, stir for 5 minutes and transfer it to a plasma device with a discharge power of 170W for 8 minutes, take it out and wash it with deionized water To neutrality, place in a vacuum oven and dry at 100°C for 2.5 hours to obtain pretreated diabase fibers;

[0027] S2. Add ethyl orthosilicate, absolute ethanol, methyltrimethoxysilane, and DMF into deionized water, and after stirring for 10 minutes, add the pretreated diabase fiber obtained in step S1, ethyl orthosilicate, and absolute ethanol , methyltrimethoxysilane, DMF, deionized water, the ratio of the pretreated diabase fiber gained in step S1 is 1mol: 10mol: 0.5mol: 0.5mol: 200mL: 2g, with the ammoniacal liquor that is 1:50 by volume ratio Ammonia-alcoholic solution composed of absolute ethanol was adjusted to pH 8, continued to stir for 3.5 hours a...

Embodiment 2

[0032] Follow the steps below to prepare an airgel thermal cloth:

[0033] S1. Add the diabase fiber to the NaOH solution with a concentration of 2mol / L at a weight ratio of 1:25, stir for 4 minutes and then transfer it to a plasma device with a discharge power of 170W for 10 minutes, take it out and wash it with deionized water To neutrality, place in a vacuum drying oven and dry at 100°C for 2 hours to obtain pretreated diabase fibers;

[0034] S2. Add ethyl orthosilicate, absolute ethanol, methyltrimethoxysilane, and DMF into deionized water, stir for 9 minutes and then add the pretreated diabase fiber obtained in step S1, ethyl orthosilicate, and absolute ethanol , methyltrimethoxysilane, DMF, deionized water, the ratio of the pretreated diabase fiber gained in step S1 is 1mol: 10mol: 0.5mol: 0.5mol: 200mL: 2g, with the ammoniacal liquor that is 1:50 by volume ratio Ammonia-alcoholic solution composed of absolute ethanol was adjusted to pH 8, continued to stir for 3.5 hou...

Embodiment 3

[0039] Follow the steps below to prepare an airgel thermal cloth:

[0040] S1. Add the diabase fiber to the NaOH solution with a concentration of 2mol / L at a weight ratio of 1:25, stir for 4.5 minutes and then transfer it to a plasma device with a discharge power of 170W for 9 minutes, take it out and wash it with deionized water To neutrality, place in a vacuum oven and dry at 100°C for 2.5 hours to obtain pretreated diabase fibers;

[0041] S2. Add ethyl orthosilicate, absolute ethanol, methyltrimethoxysilane, and DMF into deionized water, stir for 8 minutes and then add the pretreated diabase fiber obtained in step S1, ethyl orthosilicate, and absolute ethanol , methyltrimethoxysilane, DMF, deionized water, the ratio of the pretreated diabase fiber gained in step S1 is 1mol: 10mol: 0.5mol: 0.5mol: 200mL: 2g, with the ammoniacal liquor that is 1:50 by volume ratio Ammonia-alcoholic solution composed of absolute ethanol was adjusted to pH 8, stirring was continued for 3 hour...

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 preparation method of aerogel warm-keeping cloth. The method comprises the following steps: S1, adding diabase fibers into a NaOH solution, stirring, transferring the above into a plasma device for treatment, washing to be neutral, and drying to obtain pretreated diabase fibers; S2, adding tetraethoxysilane, absolute ethyl alcohol, methyltrimethoxysilane and DMF (Dimethyl Formamide) into deionized water, stirring, adding the pretreated diabase fibers, adjusting the pH value to 8, continuously stirring, and standing to obtain wet gel; S3, aging the wet gel in ethanol, taking out the aged wet gel, soaking the aged wet gel in a mixed solution, washing the soaked wet gel with n-hexane, and drying the washed wet gel to obtain silicon dioxide composite aerogel powder for later use; S4, uniformly mixing the silicon dioxide composite aerogel powder, an adhesive, a thickening agent and a solvent to obtain printing paste for later use; and S5, printing the printing paste on a fabric, and drying to obtain the aerogel warm-keeping fabric. The aerogel warm-keeping cloth prepared by the invention is relatively good in thermal insulation performance, light and breathable.

Description

technical field [0001] The invention relates to a preparation method of an airgel thermal cloth. Background technique [0002] With the advancement of science and technology and the continuous improvement of living standards, people have higher and higher requirements for clothing, and there are more and more types of clothes. The basic function of traditional clothes is to keep warm and protect the body from the cold, and to protect the body. Especially in severe cold seasons or cold places, people often need to wear multiple clothes to keep out the cold. However, heavy clothes will affect the flexibility of the body, appear bloated and clumsy, and bring a lot of inconvenience to people's travel activities. Coating a layer of metal film on the surface of clothes can effectively reflect the infrared rays radiated by the human body and achieve a good heat preservation effect, but the dense metal film cannot breathe and wick away sweat, which will cause discomfort such as stu...

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): D06P1/673D06P1/52D06P1/50
CPCD06P1/67383D06P1/5285D06P1/50
Inventor 王梦纯
Owner 国佳凝胶科创中心(深圳)有限公司
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