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A kind of silica airgel composite thermal insulation fabric and preparation method thereof

A silicon dioxide, composite thermal insulation technology, applied in the field of fabrics, can solve the problems of brittleness and easy cracking, low refractive index, low thermal conductivity, etc., and achieve the effect of strong thermal insulation function, excellent washing resistance, and excellent mechanical properties.

Active Publication Date: 2022-01-25
昆山东利新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Whenever the weather cools down, people usually choose to add clothes to resist the cold, but wearing too many clothes will cause cumbersome and inconvenient problems for people, especially when people need to attend some formal occasions, they urgently need a Clothing made of light and warm fabrics to meet people's needs
[0003] Silica airgel is a material with a porous network structure, which has a high specific surface area, low thermal conductivity, and low refractive index. The clothes made by adding it to the fabric have ultra-thin, thermal insulation, and hydrophobic properties. Excellent air permeability, but silica airgel has poor mechanical properties, brittle and easy to crack, which limits its development; at present, there are two main methods for introducing silica airgel into fabrics, one is to directly incorporate silica airgel Silica airgel is coated on the surface of fabrics; the other is to directly mix silica with spinning solution to make fabrics; the silica in the fabrics prepared by the former will gradually lose with daily use and washing process, And the thermal insulation performance of the thermal insulation fabric gradually decreases until it disappears; in the second method, because the silica airgel is prone to agglomeration in the spinning solution, it is easy to cause the blockage of the outlet of the spinning pipeline and increase the maintenance cost of the machine. The direct addition of silica airgel also has a certain effect on the fiber properties

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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  • A kind of silica airgel composite thermal insulation fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A silica airgel composite thermal insulation fabric, the mass ratio of the modified long fiber and the shell material is 1:5.

[0045] The raw material components of the modified long fiber are as follows: in parts by weight, 60 parts of modified tourmaline, 100 parts of base material mixture, 25 parts of potassium hexatitanate whisker, 20 parts of boron carbide, and 30 parts of soluble starch.

[0046] The mass ratio of the modified silica airgel to the fiber substrate is 1:10.

[0047] The raw material components of the modified tourmaline are as follows: in parts by weight, 90 parts of tourmaline, 60 parts of cationic surfactant, and 50 parts of graphene oxide.

[0048] The raw material components of the modified silica airgel are as follows: in parts by weight, 80 parts of ethyl orthosilicate, 40 parts of N,N-dimethylformamide, β-cyclodextrin / metal organic framework 20 parts of compound, 50 parts of n-hexane, 30 parts of polyethyleneimine, 28 parts of crosslinking ...

Embodiment 2

[0064] A silica airgel composite thermal insulation fabric, the mass ratio of the modified long fiber and the shell material is 2:5.

[0065] The raw material components of the modified long fiber are as follows: in parts by weight, 75 parts of modified tourmaline, 110 parts of base material mixture, 35 parts of potassium hexatitanate whisker, 30 parts of boron carbide, and 45 parts of soluble starch.

[0066] The mass ratio of the modified silica airgel to the fiber substrate is 1:5.

[0067] The raw material components of the modified tourmaline are as follows: in parts by weight, 95 parts of tourmaline, 70 parts of cationic surfactant, and 60 parts of graphene oxide.

[0068] The raw material components of the modified silica airgel are as follows: in parts by weight, 90 parts of ethyl orthosilicate, 45 parts of N,N-dimethylformamide, β-cyclodextrin / metal organic framework 25 parts of compound, 55 parts of n-hexane, 33 parts of polyethyleneimine, 30 parts of crosslinking a...

Embodiment 3

[0084] A silica airgel composite thermal insulation fabric, the mass ratio of the modified long fiber and the shell material is 3:5.

[0085] The raw material components of the modified long fiber are as follows: in parts by weight, 90 parts of modified tourmaline, 120 parts of base material mixture, 45 parts of potassium hexatitanate whisker, 40 parts of boron carbide, and 60 parts of soluble starch.

[0086] The mass ratio of the modified silica airgel to the fiber substrate is 3:10.

[0087] The raw material components of the modified tourmaline are as follows: in parts by weight, 100 parts of tourmaline, 80 parts of cationic surfactant, and 70 parts of graphene oxide.

[0088] The raw material components of the modified silica airgel are as follows: in parts by weight, 100 parts of ethyl orthosilicate, 50 parts of N,N-dimethylformamide, β-cyclodextrin / metal organic framework 30 parts of compound, 60 parts of n-hexane, 35 parts of polyethyleneimine, 32 parts of crosslinkin...

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 a silica airgel composite thermal insulation fabric and a preparation method thereof. The thermal insulation fabric in the present invention is mainly woven from composite fibers with a shell-core structure, the core material of the composite fiber is modified long fiber, and the shell material of the composite fiber is mainly composed of modified silica airgel and fiber base material. The composite fiber obtained by compounding the modified long fiber and the shell material has good thermal insulation effect, high antibacterial rate, and excellent mechanical properties. The thermal insulation fabric prepared by using this fiber has good washing resistance. The thermal and antibacterial properties are not significantly reduced, the service life is long, and it has strong practical value.

Description

technical field [0001] The invention relates to the technical field of fabrics, in particular to a silica airgel composite thermal insulation fabric and a preparation method thereof. Background technique [0002] Whenever the weather cools down, people usually choose to add clothes to resist the cold, but wearing too many clothes will cause cumbersome and inconvenient problems for people, especially when people need to attend some formal occasions, they urgently need a Clothing made of light and warm fabrics to meet people's needs. [0003] Silica airgel is a material with a porous network structure, which has a high specific surface area, low thermal conductivity, and low refractive index. The clothes made by adding it to the fabric have ultra-thin, thermal insulation, and hydrophobic properties. Excellent air permeability, but silica airgel has poor mechanical properties, brittle and easy to crack, which limits its development; at present, there are two main methods for i...

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): D03D15/56D03D15/242D03D15/283D04B1/16D04B1/18D04B21/00D02G3/04D02G3/44D02G3/36D02G3/32D01F9/08
CPCC04B35/62245C04B35/80C04B35/636C04B35/653C04B41/4584C04B41/009C04B41/85C04B2235/5276C04B2235/3418C04B2235/3463C04B2235/3217C04B2235/3821C04B2235/425C04B14/4643C04B41/5089C04B41/4596
Inventor 不公告发明人
Owner 昆山东利新材料科技有限公司
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