Preparation method of aerogel heat-insulation textile composite material

A composite material and airgel technology, applied in textiles and papermaking, conjugated artificial filaments, fiber chemical characteristics, etc., can solve the problems of poor thermal insulation performance and poor durability of thermal insulation and temperature regulating fibers and fabrics, and achieve high porosity , low refractive index, and the effect of narrowing the pore size distribution

Inactive Publication Date: 2018-12-18
黄勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention: Aiming at the problems of poor thermal insulation performance and poor durability of thermal insulation and temperature regulating fibers and fabrics in the market, a preparation method of airgel thermal insulation textile composite material is provided

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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  • Preparation method of aerogel heat-insulation textile composite material

Examples

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example 1

[0024] Mix ethyl orthosilicate, anhydrous ethanol and deionized water uniformly in a mass ratio of 1:5:8, and stir for 1 h at a stirring speed of 200 r / min to obtain a mixed solution, and adjust the system with a mass fraction of 10% hydrochloric acid solution The pH is 3, continue stirring for 30 minutes to obtain the base solution, drop the ammonia solution into the base solution at a mass ratio of 1:6, and continue stirring for 1 h to obtain a sol; mix the natural fiber and the sol at a mass ratio of 1:3, Stir vigorously at 80°C for 6 hours to obtain spinning dope, and after gel spinning treatment and drawing three times to obtain composite fibers, the composite fibers are soaked in hexamethyldisiloxane for 1 day, and the mass ratio Add trimethylchlorosilane at 1:6, stir evenly, and let it stand for 1 day to obtain modified composite fibers. Gel thermal insulation textile composite material; the gel spinning conditions are: the diameter of the single hole of the spinneret i...

example 2

[0026] Mix ethyl orthosilicate, anhydrous ethanol and deionized water uniformly in a mass ratio of 1:5:8, and stir at a stirring speed of 350 r / min for 1.5 h to obtain a mixed solution, which is adjusted with a mass fraction of 10% hydrochloric acid solution The pH of the system is 3.5, and stirring is continued for 40 min to obtain a base liquid. The ammonia solution is added dropwise to the base liquid at a mass ratio of 1:6, and the stirring is continued for 2 h to obtain a sol; the natural fiber and the sol are mixed at a mass ratio of 1:3, The temperature was 85°C and vigorously stirred for 7 hours to obtain the spinning dope. After gel spinning treatment and stretching for 4 times, the composite fiber was obtained. Add trimethylchlorosilane at a ratio of 1:6, stir evenly, and let it stand for 1 day to obtain modified composite fibers. Gel thermal insulation textile composite material; the gel spinning conditions are: the diameter of the single hole of the spinneret is 0....

example 3

[0028]Mix ethyl orthosilicate, anhydrous ethanol and deionized water uniformly according to the mass ratio of 1:5:8, and stir at a stirring speed of 500 r / min for 2 hours to obtain a mixed solution, and adjust the system with a mass fraction of 10% hydrochloric acid solution The pH is 4, continue stirring for 50min to obtain the base solution, drop the ammonia solution into the base solution at a mass ratio of 1:6, and continue stirring for 3h to obtain a sol; mix the natural fiber and the sol at a mass ratio of 1:3, Stir vigorously at 90 °C for 8 hours to obtain spinning dope, and after gel spinning treatment and stretching for 5 times, composite fibers are obtained. Add trimethylchlorosilane at 1:6, stir evenly, and let it stand for 2 days to obtain modified composite fibers. Gel thermal insulation textile composite material; the gel spinning conditions are: the diameter of the single hole of the spinneret is 1mm, the extrusion speed is 1.4m / min, the spinning temperature is ...

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 relates to a preparation method of an aerogel heat-insulation textile composite material and belongs to the technical field of textile materials. According to the preparation method provided by the invention, silicon dioxide aerogel is utilized to prepare the aerogel heat-insulation textile composite material by adopting a gel spinning method; the silicon dioxide aerogel is a nano light-weight porous material which takes air as a main component, amorphous-state silicon dioxide as a basic framework and has a complicated three-dimensional network structure; the silicon dioxide aerogel has the characteristics of nano-hole structure, low heat conductivity, low density, low refractive index, low sound velocity and the like; the silicon dioxide aerogel has a unique nano-hole structure so that the aerogel has heat-preservation and heat-insulation properties; the prepared composite material has good heat preservation performance and is not easy to age; natural fibers are immersedinto wet gel so that the gel permeates into the natural fibers, a gel network is completed and a fiber-gel compound is formed, and furthermore, the strength is improved; the prepared aerogel heat-insulation textile composite material has good heat insulation performance and excellent durability.

Description

technical field [0001] The invention relates to a preparation method of an aerogel thermal insulation textile composite material, and belongs to the technical field of textile materials. Background technique [0002] With the improvement of people's living standards and tastes, the function of traditional clothing to cover the body and avoid the cold can no longer satisfy people's lives. [0003] Demand, in addition to requiring novelty in clothing styles, colors, etc., the demand for functional clothing has become more urgent. In recent years, due to the abnormal deterioration of the climate, the winter becomes more and more cold, and people have higher requirements for the thermal insulation function of clothing, and the research on textile thermal insulation composite materials has also become an inevitable trend. [0004] At present, the main products in the thermal insulation material market are down materials, natural wool materials, microfiber insulation materials ...

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): D06M13/513D01F8/18D01F8/02D06M101/06D06M101/12D06M101/10
CPCD01F8/02D01F8/18D06M13/513D06M2101/06D06M2101/10D06M2101/12
Inventor 黄勇张鑫史志新
Owner 黄勇
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