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A kind of preparation method of infrared camouflage fabric

An infrared camouflage and fabric technology, applied in the field of infrared camouflage fabric preparation, can solve the problems of poor hand feel of infrared camouflage textiles, difficulty in camouflaging all infrared bands, poor rubbing fastness, etc., and achieves excellent infrared camouflage effect and excellent moisture permeability. , Improve the effect of bonding fastness

Active Publication Date: 2020-06-26
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing research on infrared camouflage fabrics can only achieve near-infrared camouflage or mid-to-far infrared camouflage, and it is difficult to achieve full camouflage for the entire infrared band; moreover, many infrared camouflage dyes or pigments and the combination of most low-emissivity materials and textiles The fastness is poor. The infrared camouflage textiles prepared by the coating method have defects such as poor hand feeling, poor rubbing fastness, hygroscopicity and air permeability of the fabric.

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 preparation method of infrared camouflage fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Zinc acetate dihydrate is dissolved in ethylene glycol monomethyl ether, and preparation concentration is the zinc acetate solution of 0.3mol / L; Aluminum nitrate is added in the above-mentioned solution, and the mol ratio of aluminum ion and zinc ion is 1: 10. After complete dissolution, add ethanolamine solution dropwise until the pH of the solution is 6.5, stir in a water bath at 60°C for 4 hours, and then let it stand for 24 hours to obtain the aluminum-doped zinc oxide sol;

[0024] (2) Set the molecular weight to 1.5×10 4 , the degree of deacetylation is that the chitosan of 80% is dissolved in the solute mass fraction 1% acetic acid solution, prepares the chitosan solution of mass fraction 3%; Then the gained aluminum-doped zinc oxide sol in step (1) is added to above-mentioned shell In the polysan solution, the mass ratio of aluminum-doped zinc oxide sol to chitosan is 1:1, then add the cross-linking agent epichlorohydrin accounting for 0.5% of chitosan mass,...

Embodiment 2

[0040] (1) Dissolve zinc acetate dihydrate in isopropanol to prepare a zinc acetate solution with a concentration of 0.75mol / L; add aluminum chloride to the above solution, and the molar ratio of aluminum ions to zinc ions is 1:20, After complete dissolution, add diethanolamine solution dropwise until the pH of the solution is 7.5, stir in a water bath at 75°C for 2 hours, and then let it stand for 48 hours to obtain the aluminum-doped zinc oxide sol;

[0041] (2) The molecular weight is 10×10 4 , the degree of deacetylation is that the chitosan of 95% is dissolved in the solute mass fraction 3% acetic acid solution, prepares the chitosan solution of mass fraction 5%; Then the gained aluminum-doped zinc oxide sol in step (1) is added to above-mentioned shell In the polysan solution, the ratio of aluminum-doped zinc oxide sol to chitosan mass is 1:3, then add the cross-linking agent epichlorohydrin accounting for 1% of chitosan mass, and adjust the pH to 0.1mol / L NaOH solution....

Embodiment 3

[0045] (1) Dissolve zinc acetate dihydrate in isopropanol to prepare a zinc acetate solution with a concentration of 0.6mol / L; add aluminum chloride to the above solution, and the molar ratio of aluminum ions to zinc ions is 1:15, After complete dissolution, add triethanolamine solution dropwise until the pH of the solution is 7.0, stir in a water bath at 70°C for 3 hours, and then let it stand for 36 hours to obtain the aluminum-doped zinc oxide sol;

[0046] (2) The molecular weight is 5×10 4 , the degree of deacetylation is that the chitosan of 90% is dissolved in the solute mass fraction 2% acetic acid solution, prepares the chitosan solution of mass fraction 4%; Then the gained aluminum-doped zinc oxide sol in step (1) is added to above-mentioned shell In the polysan solution, the mass ratio of aluminum-doped zinc oxide sol to chitosan is 1:2, then add the cross-linking agent epichlorohydrin accounting for 0.8% of chitosan mass, and adjust the pH to 0.1mol / L NaOH solution...

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 an infrared camouflage fabric. According to the method, aluminum doped zinc oxide sol is prepared by a sol-gel technology and then blended with chitosansolution to form finishing liquor, the finishing liquor is treated onto a textile by rolling and baking, the textile is dyed by near infrared absorbents such as porphyrin, phthalocyanine and sodium copper chlorophyllin, and finally, the textile with a good camouflage performance for a whole infrared band is obtained.

Description

technical field [0001] The invention belongs to the field of textiles, and in particular relates to a preparation method of an infrared camouflage fabric. Background technique [0002] With the development of science and technology, modern military technology has reached the level that "targets can be destroyed as long as they are discovered". Infrared reconnaissance technology is one of the main reconnaissance technologies in modern warfare. It uses the difference of infrared radiation characteristics between the target and the background to find the target. Infrared camouflage technology mainly achieves the low detectability of the target by reducing or changing the infrared radiation characteristics of the target. [0003] The main working bands of infrared detection technology are the near-infrared region of 1-3μm, the mid-infrared region of 3.5-5μm, and the far-infrared region of 8-14μm. For near-infrared surveillance, the main exposure symptom is the brightness diffe...

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): D06P1/00D06P1/673D06P1/46D06P1/651D06P3/60D06P3/82
CPCD06P1/004D06P1/46D06P1/65106D06P1/673D06P3/60D06P3/8228
Inventor 彭勇刚汪媛纪俊玲陶永新
Owner CHANGZHOU UNIV
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