Preparation method of chameleon bionic camouflage painting color-changing film

A technology of chameleon and color-changing film is applied in the field of preparation of camouflage color-changing film to achieve the effects of improving photothermal conversion efficiency, enhancing absorption and improving sensitivity

Active Publication Date: 2016-12-14
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this material cannot achieve colorimetric response to all warm infrared light and visible light.

Method used

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  • Preparation method of chameleon bionic camouflage painting color-changing film
  • Preparation method of chameleon bionic camouflage painting color-changing film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] All the reaction containers were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the containers. Prepare thermosensitive polymer monomer solution, including isopropylacrylamide 100g / L, nano gold 1.0×10 9 g / L, polyvinylpyrrolidone 2.0g / L, methylenebisacrylamide 1.0g / L, tetramethylethylenediamine 0.1g / L and ammonium persulfate 0.0001g / L. Stir rapidly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 minutes until the polymerization is complete. Soak the photonic crystal template with the thermosensitive polymer in 50 mL of hydrofluoric acid solution with a mass concentration of 1.5%, and react at room temperature for 6 hours. After the photonic crystal is completely etched, take out the photonic crystal anti-template with thermally sensitive polymer coupling nano-noble metal particles, rinse it repeatedly with deionized water, then soak it in deionized water, chang...

Embodiment 2

[0035] All the reaction containers were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the containers. Prepare thermosensitive polymer monomer solution, including isopropylacrylamide 100g / L, nano gold 2.0×10 9g / L, polyvinylpyrrolidone 4.0g / L, methylenebisacrylamide 2.0g / L, tetramethylethylenediamine 0.2g / L and ammonium persulfate 0.0002g / L. Stir rapidly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min until the polymerization is complete. Soak the photonic crystal template with the thermosensitive polymer in 50 mL of hydrofluoric acid solution with a mass concentration of 1.5%, and react at room temperature for 6 hours. After the photonic crystal is completely etched, take out the photonic crystal anti-template with thermally sensitive polymer coupling nano-noble metal particles, rinse it repeatedly with deionized water, then soak it in deionized water, change the...

Embodiment 3

[0037] All the reaction containers were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the containers. Prepare thermosensitive polymer monomer solution, including isopropylacrylamide 100g / L, nano gold 3.0×10 9 g / L, polyvinylpyrrolidone 6.0g / L, methylenebisacrylamide 3.0g / L, tetramethylethylenediamine 0.3g / L and ammonium persulfate 0.0003g / L. Stir rapidly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min until the polymerization is complete. Soak the photonic crystal template with the thermosensitive polymer in 50 mL of hydrofluoric acid solution with a mass concentration of 1.5%, and react at room temperature for 6 hours. After the photonic crystal is completely etched, take out the photonic crystal anti-template with thermally sensitive polymer coupling nano-noble metal particles, rinse it repeatedly with deionized water, then soak it in deionized water, change th...

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Abstract

The invention relates to a preparation method of a chameleon bionic camouflage painting color-changing film. The preparation method comprises the following steps: adding thermo-sensitive macromolecular monomers, nano-metal particles, a surfactant, a cross-linking agent, an auxiliary initiator and an initiator into deionized water to mix to obtain a mixed solution; (2) pouring the mixed solution into a silicon dioxide photonic crystal template, standing until polymerization is finished, soaking the template into a hydrofluoric acid to obtain a reverse template, washing the reverse template in the deionized water repeatedly, and soaking the reverse template in the deionized water to obtain a thermo-sensitive macromolecular coupling nano-metal particle chameleon bionic film. Compared with the prior art, the preparation method of the chameleon bionic camouflage painting color-changing film has the advantage that the chameleon bionic camouflage painting color-changing film has sensitive color change correspondence on temperature, visible light and near-infrared light.

Description

technical field [0001] The invention relates to a preparation method of a camouflage color-changing film, in particular to a preparation method of a chameleon bionic camouflage color-changing film. Background technique [0002] There are many kinds of creatures in nature. After hundreds of millions of years of evolution and development, they have many special abilities to adapt to the natural environment. The abilities that these artificial materials do not have have attracted great attention from scientists. Among them, chameleon has become a research hotspot in bionics because of its ability to rapidly change color with environmental factors. Chameleon bionic materials can be used in sensors, environmental information encoding and transmission, camouflage and concealment, and military industry. In order to achieve the chameleon effect, the main application means at this stage are: to maintain the same color as the surrounding environment alone to achieve camouflage purpos...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/54C08F222/38C08F216/18C08F2/44C08K3/08C08J5/18C09K9/00C09D133/24C09D129/10C09D7/12
CPCC08F2/44C08F216/18C08F220/54C08J5/18C08J2329/10C08J2333/24C08K3/08C08K2003/0806C08K2003/0831C08K2003/085C08K2201/003C08K2201/011C09D7/61C09D129/10C09D133/24C09K9/00C08F222/385
Inventor 胡晓斌延阳徐洲
Owner SHANGHAI JIAO TONG UNIV
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