CN106220780B - A kind of preparation method for the camouflage painting color-changing membrane that chameleon is bionical - Google Patents

Abstract

The invention relates to a preparation method of a chameleon bionic camouflage camouflage color-changing film. Mixing with deionized water to obtain a mixed solution; (2) injecting the mixed solution into a silicon dioxide photonic crystal template, standing until the polymerization is completed, and then immersing the template in a hydrofluoric acid solution to obtain a reverse template, and the reverse template is repeated in deionized water. After being cleaned, soaked in deionized water to obtain a chameleon biomimetic film coupled with heat-sensitive macromolecules and nano-metal particles. Compared with the prior art, the present invention can respond to color changes that are sensitive to temperature, visible light, and near-infrared.

Description

A kind of preparation method of chameleon bionic camouflage color-changing film

technical field

The invention relates to a preparation method of a camouflage discoloration film, in particular to a preparation method of a chameleon bionic camouflage discoloration film.

Background technique

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 man-made materials do not have have attracted great attention of scientists. Among them, chameleons have become a research hotspot in bionics because of their ability to rapidly change their colors with environmental factors. Chameleon biomimetic materials can be used in sensors, environmental information encoding and transmission, camouflage concealment, and military industries. In order to achieve the chameleon effect, the main application methods at this stage are: maintaining the same color as the surrounding environment to achieve the purpose of camouflage, such as camouflage painting on military camouflage uniforms; using implanted electronic chips to sense changes in surrounding conditions and control them through computers to change materials The purpose of color, such as chameleon electronic skin; at the same time, various color-changing materials (such as electrochromic, thermochromic, photochromic) can be applied, and the color of the material can be changed by corresponding stimuli to achieve the purpose of preparing chameleon biomimetic materials. The above methods all have the disadvantages of high cost, narrow application area, inability to respond to multiple environmental factors at the same time, and single color change. Therefore, there is still a lot of room for research on the preparation method of chameleon bionic camouflage materials.

With the continuous development of science and technology, people's requirements for chameleon bionic materials are increasing day by day. While achieving response to various environmental factors, it is also required that the material can undergo rich color changes, so as to achieve information transmission and camouflage concealment. Environmental factors mainly include temperature and light. Therefore, materials that are sensitive to both temperature and light are the best choice for preparing chameleon biomimetic materials. As one of the most commonly used color-changing materials, temperature-sensitive polymers occupy an important position in chameleon biomimetic materials with their unique advantages. Thermosensitive polymers are not only sensitive to temperature, but can also respond to infrared light by utilizing the photothermal conversion effect, which greatly expands the response range of materials. However, due to the influence of the properties of the material itself, thermosensitive polymers do not have a rich color response to environmental factors, which is one of its shortcomings. Visible light plays an important role in regulating the color changing behavior of chameleons, and it is also an indispensable environmental stimulus in production and life. However, there are very few thermosensitive polymers that can realize the color change response to visible light. Therefore, how to realize the response of chameleon biomimetic materials to visible light stimulation is an urgent problem to be solved.

Therefore, it is of great practical significance to seek a technical method to realize a chameleon biomimetic material that can simultaneously respond to temperature and full-spectrum illumination stimuli and has bright color changes.

In order to achieve this technical requirement, a high-tech chameleon bionic camouflage camouflage film needs to be made. The specific requirements are: temperature sensitivity, full spectrum sensitivity, rapid response, obvious color change, low cost and easy preparation.

After searching for the prior art, it was found that Yokohama National University used the polymers of isopropyl acrylamide and methacrylic acid to prepare temperature-sensitive polymer materials that are sensitive to temperature between 16 and 32 °C. Changes in ion concentration enable the membrane's response to electrical stimulation. And it takes advantage of the characteristics of temperature-sensitive polymers that change in volume with temperature and current changes, and introduces photonic crystal structures into the polymers to achieve a variety of color responses to temperature. (Ueno K, Matsubara K, Watanabe M, et al. A full-color indicator responsive to electrothermal stimulation [J]. Advanced Materials, 2007, 19(19): 2807-2812.)

However, the existing technology only realizes temperature-sensitive color changing behavior within a narrow temperature change interval, and there is no way to achieve response to higher or lower temperatures, and this technology cannot change the color of light stimuli. response. In addition, the whole preparation process takes a long time and the cost is high, which is not conducive to actual production.

Chinese patent CN104419096A discloses a thermochromic material and a preparation method thereof, wherein the thermochromic material is composed of the following components in parts by weight: 100 parts of polyvinyl chloride, 0.5-3 parts of thermochromic material, processing aids 4-15 parts, the thermochromic material is selected from CoCl ₂ ·2C ₅ H ₁₂ N ₄ ·10H ₂ O. However, this material cannot achieve all colorimetric responses to warm infrared light and visible light.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a method for preparing a chameleon bionic camouflage camouflage color-changing film that can be sensitive to temperature, visible light, and near-infrared in order to overcome the defects of the prior art.

The object of the present invention can be realized through the following technical solutions:

A preparation method of a chameleon bionic camouflage color-changing film, which adopts the following steps:

(1) blend the heat-sensitive polymer monomer with nano metal particles, surfactant, crosslinking agent, co-initiator and initiator in deionized water to obtain a mixed solution;

(2) The mixed solution was injected into the silica photonic crystal template, and after the polymerization was completed, the template was immersed in a hydrofluoric acid solution to obtain a reverse template. The reverse template was repeatedly washed in deionized water and then soaked in deionized water to obtain a thermal Sensitive polymer-coupled nano-metal particle chameleon biomimetic film.

The heat-sensitive polymer monomers are isopropyl acrylamide, isovinyl isobutyramide and methyl vinyl ether, and the concentration is 50-150 g/L.

The nano metal particles include spherical gold nanoparticles with a particle size of 10 to 20 nm, caged gold nanoparticles with a particle size of 30 to 50 nm, spherical nano silver particles with a particle size of 5 to 30 nm, and gold nanoparticles with a particle size of 20 to 30 nm. Cubic nano silver particles or spherical nano copper particles with a particle size of 10-20 nm.

The nano metal particles are preferably 20nm cubic silver nanoparticles with enhanced absorption of 390nm monochromatic light, 5nm spherical silver nanoparticles with enhanced monochromatic light absorption at 400nm, and 20nm spherical silver nanoparticles with enhanced monochromatic light absorption at 420nm. Particles, 30nm spherical silver nanoparticles with enhanced absorption of 430nm monochromatic light, 10nm spherical silver nanoparticles with enhanced absorption of 520nm monochromatic light, 15nm spherical gold nanoparticles with enhanced absorption of 528nm monochromatic light, and 590nm monochromatic light 10nm spherical copper nanoparticles with enhanced absorption and 30nm caged gold nanoparticles with enhanced absorption of 790nm monochromatic light.

The surfactant is polyvinylpyrrolidone, sodium dodecylbenzenesulfonate or cetyltrimethylammonium bromide, and the crosslinking agent is N,N-methylenebisacrylamide. Described co-initiator is tetramethylethylenediamine, and described initiator is ammonium persulfate.

The mass ratio of the heat-sensitive polymer monomer to the surfactant, the crosslinking agent, the co-initiator and the initiator is 1:0.001-0.003:0.01-0.03:0.001-0.003:0.0001-0.0003.

The mass ratio of the thermosensitive polymer monomer to the nano metal particles is 1:1×10 ^-9 to 3×10 ^-9 .

The silicon dioxide photonic crystal template is a silicon dioxide photonic crystal template with a particle size between 250 and 300 nm prepared by the stober method.

The concentration of the hydrofluoric acid solution is 10.0-15.0 g/L.

The inverse template was repeatedly washed in deionized water until the conductivity was 2-5us/cm.

The blended solution of the heat-sensitive polymer monomer and the nano metal particles can also be used as a paint to form a film on the surface of an object.

Compared with the prior art, the present invention has the following advantages:

1. The color response to different temperatures can be achieved by using different heat-sensitive polymers;

2. After adding nano precious metal particles, due to its high thermal conductivity and low specific heat capacity, the photothermal conversion efficiency of infrared light can be enhanced, thereby improving the sensitivity of the film to infrared light, so that the film can be stimulated by changes in infrared light. Rich color display;

3. After adding nano precious metal particles, due to their characteristic absorption peaks on the spectrum, (nano-gold at 528-540nm, nano-silver at 420-440nm, nano-copper at 585-600nm), it can enhance the absorption of these visible light by the film. The photothermal conversion efficiency of these monochromatic lights, that is, the response to these visible lights is also achieved through photothermal conversion;

4. After adding photonic crystals, rich and bright color changes can be expressed through the structural color of photonic crystals to temperature and light stimulation.

Description of drawings

Figure 1 shows the color response of the chameleon biomimetic camouflage color-changing film compounded with 10nm nano-gold particles to temperature changes;

Figure 2 shows the color response of the chameleon biomimetic camouflage color-changing film compounded with 10nm gold nanoparticles to visible light and near-infrared light.

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including 100g/L of isopropylacrylamide, 1.0×10 ⁹ g/L of nano-gold, 2.0g/L of polyvinylpyrrolidone, 1.0g/L of methylenebisacrylamide, Ethylenediamine 0.1g/L and ammonium persulfate 0.0001g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was immersed in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. When the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 2

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including 100g/L of isopropylacrylamide, 2.0×10 ⁹ g/L of nano-gold, 4.0g/L of polyvinylpyrrolidone, 2.0g/L of methylenebisacrylamide, Ethylenediamine 0.2g/L and ammonium persulfate 0.0002g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was immersed in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. When the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 3

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a thermosensitive polymer monomer solution, including 100g/L of isopropylacrylamide, 3.0×10 ⁹ g/L of nano-gold, 6.0g/L of polyvinylpyrrolidone, 3.0g/L of methylenebisacrylamide, Ethylenediamine 0.3g/L and ammonium persulfate 0.0003g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was immersed in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. After the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 4

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including 100g/L of isovinyl isobutyramide, 1.0×10 ⁹ g/L of nano-silver, 2.0g/L of sodium dodecylbenzenesulfonate, and 1.0 g/L of methylenebisacrylamide. g/L, tetramethylethylenediamine 0.1 g/L, and ammonium persulfate 0.0001 g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was immersed in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. When the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 5

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including 100 g/L of isovinyl isobutyramide, 2.0×10 ⁹ g/L of nano-silver, 4.0 g/L of sodium dodecylbenzene sulfonate, and 2.0 g/L of methylenebisacrylamide. g/L, tetramethylethylenediamine 0.2g/L and ammonium persulfate 0.0002g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was immersed in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. When the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 6

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including 100 g/L of isovinyl isobutyramide, 3.0×10 ⁹ g/L of nano-silver, 6.0 g/L of sodium dodecylbenzenesulfonate, and 3.0 g/L of methylenebisacrylamide. g/L, tetramethylethylenediamine 0.3g/L and ammonium persulfate 0.0003g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was soaked in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. After the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 7

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including methyl vinyl ether 100g/L, nano-copper 1.0×10 ⁹ g/L, cetyltrimethylammonium bromide 2.0g/L, methylenebisacrylamide 1.0g/L, tetramethylethylenediamine 0.1g/L and ammonium persulfate 0.0001g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was immersed in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. When the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 8

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including methyl vinyl ether 100g/L, nano-copper 2.0×10 ⁹ g/L, cetyltrimethylammonium bromide 4.0g/L, methylenebisacrylamide 2.0g/L, tetramethylethylenediamine 0.2g/L and ammonium persulfate 0.0002g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was soaked in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. After the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Example 9

All reaction vessels were ultrasonically cleaned in deionized water for 15 min and repeated four times to fully clean the vessels. Prepare a heat-sensitive polymer monomer solution, including methyl vinyl ether 100g/L, nano-copper 3.0×10 ⁹ g/L, cetyltrimethylammonium bromide 6.0g/L, methylenebisacrylamide 3.0g/L, tetramethylethylenediamine 0.3g/L and ammonium persulfate 0.0003g/L. Stir quickly at room temperature, and inject 10 μL of it into the photonic crystal template. Stand at room temperature for 30 min to wait for the completion of the polymerization. The photonic crystal template with thermosensitive polymer was soaked in 50 mL of 1.5% hydrofluoric acid solution, and reacted at room temperature for 6 hours. After the photonic crystals are all etched, take out the photonic crystal counter-template of the heat-sensitive polymer-coupled nano-precious metal particles, rinse with deionized water repeatedly, and then soak in deionized water. The residual hydrofluoric acid is washed away, and then the film is stored in pure water, which is a chameleon biomimetic film with heat-sensitive macromolecules coupled with nano-metal particles.

Figure 1 shows the relationship between the optical band gap and the temperature change of the camouflage camouflage color-changing film of the chameleon bionic. The main performance is that with the increase of temperature, the optical band gap of the photonic crystal structure of the film is blue-shifted. The macroscopic color shows that as the temperature increases from 28 °C to 42 °C, the color of the film gradually changes from purple to red, and there is a one-to-one correspondence between the temperature and the color of the film. Figure 2 shows the relationship between the optical band gap shift of the chameleon bionic camouflage color-changing film and the monochromatic light of different wavelengths. The main performance is that with the increase of the wavelength of the monochromatic light, the shift of the optical band gap increases, and the macroscopic color shows that with the increase of the wavelength of the monochromatic light, the color of the film changes more obviously. In particular, the color response of the film to visible light at 528 nm is realized due to the absorption enhancement effect of the 15 nm nano-gold in the film on the 528 nm monochromatic color.

Example 10

A preparation method of a chameleon bionic camouflage color-changing film, which adopts the following steps:

(1) Combine isopropylacrylamide, a thermosensitive polymer monomer, with spherical gold nanoparticles with a particle size of 10 nm, surfactant polyvinylpyrrolidone, crosslinking agent N,N-methylenebisacrylamide, and co-initiator Tetramethylethylenediamine and initiator ammonium persulfate are blended in deionized water to obtain a mixed solution, wherein the concentration of the thermosensitive polymer monomer is 50g/L, the thermosensitive polymer monomer is mixed with the surfactant, the crosslinker The mass ratio of the linking agent, the co-initiator and the initiator is 1:0.001:0.01:0.001:0.0001, and the mass ratio of the heat-sensitive polymer monomer and the nano metal particles is 1:1×10 ^-9 ;

(2) The mixed solution was injected into the silica photonic crystal template. In this example, a silica photonic crystal template with a particle size of 250 nm prepared by the stober method was used. After the polymerization was completed, the template was immersed in a concentration of 10.0 The anti-template was obtained in g/L hydrofluoric acid solution, and the anti-template was repeatedly washed in deionized water and then soaked in deionized water, and washed to a conductivity of 2us/cm to obtain a thermal polymer-coupled nano-metal particle chameleon biomimetic film.

Example 11

A preparation method of a chameleon bionic camouflage color-changing film, which adopts the following steps:

(1) Combine the thermosensitive polymer monomer isovinyl isobutyramide with 20nm spherical silver nanoparticles, surfactant sodium dodecylbenzene sulfonate, crosslinking agent N,N-methylenebisacrylamide, auxiliary The initiator tetramethylethylenediamine and the initiator ammonium persulfate are blended in deionized water to obtain a mixed solution, wherein the concentration of the heat-sensitive polymer monomer is 80g/L, and the heat-sensitive polymer monomer and the surfactant , the mass ratio of crosslinking agent, co-initiator and initiator is 1:0.002:0.02:0.002:0.0002, and the mass ratio of heat-sensitive macromolecular monomer and nano metal particles is 1:2×10 ^-9 ;

(2) The mixed solution was injected into the silicon dioxide photonic crystal template. In this example, a silicon dioxide photonic crystal template with a particle size of 280 nm prepared by the stober method was used, and the template was immersed in a concentration of 12.0 The anti-template was obtained in g/L hydrofluoric acid solution, and the anti-template was repeatedly washed in deionized water and then soaked in deionized water, and washed to a conductivity of 2us/cm to obtain a thermal polymer-coupled nano-metal particle chameleon biomimetic film.

Example 12

A preparation method of a chameleon bionic camouflage color-changing film, which adopts the following steps:

(1) Combine the thermosensitive polymer monomer methyl vinyl ether with 10nm spherical nano-copper particles, surfactant cetyltrimethylammonium bromide, crosslinking agent N,N-methylenebisacrylamide, The co-initiator tetramethylethylenediamine and the initiator ammonium persulfate are blended in deionized water to obtain a mixed solution, wherein the concentration of the heat-sensitive polymer monomer is 150g/L, and the heat-sensitive polymer monomer and surface active The mass ratio of agent, crosslinking agent, co-initiator and initiator is 1:0.003:0.03:0.003:0.0003, and the mass ratio of heat-sensitive macromolecular monomer and nano metal particles is 1:3×10 ^-9 ;

(2) The mixed solution was injected into the silicon dioxide photonic crystal template. In this example, a silicon dioxide photonic crystal template with a particle size of 300 nm prepared by the stober method was used. After the polymerization was completed, the template was immersed in a concentration of 15.0 The anti-template was obtained in g/L hydrofluoric acid solution, and the anti-template was repeatedly washed in deionized water and then soaked in deionized water, and washed to a conductivity of 5us/cm to obtain a chameleon biomimetic film coupled with heat-sensitive polymer nanoparticles and metal particles.

Example 13

A preparation method of a chameleon bionic camouflage camouflage color-changing film is roughly the same as that in Example 12, except that in step (1), the blended solution of heat-sensitive polymer monomer and nano-metal particles is used as paint, and is used in the object. The surface paint is applied as a film.

Claims (5)

1. a kind of preparation method for the camouflage painting color-changing membrane that chameleon is bionical, which is characterized in that this method uses following steps:

(1) heat-sensible high polymer monomer and nano-metal particle, surfactant, crosslinking agent, aided initiating and initiator are being gone It is blended in ionized water, obtains mixed solution；

(2) mixed solution is injected in silica photonic crystal template, stands and template is immersed into hydrofluoric acid to after the completion of polymerizeing Antitemplate is obtained in solution, antitemplate is impregnated in deionized water after cleaning repeatedly in deionized water, obtains heat-sensible high polymer Coupled nanosecond metallic particles chameleon bionic thin film；

The nano-metal particle include partial size be 10~20nm spherical nanogold particle, partial size be the spherical of 5~30nm The spherical nano copper particle that nano-Ag particles or partial size are 10~20nm；

The heat-sensible high polymer monomer is N-isopropylacrylamide, different vinylisobutyramide, methyl vinyl ether, and concentration is 50~150g/L；

The surfactant be polyvinylpyrrolidone, neopelex or cetyl trimethylammonium bromide, The crosslinking agent is N, and N- methylene-bisacrylamide, the aided initiating is tetramethylethylenediamine, the initiator For ammonium persulfate；

The mass ratio of the heat-sensible high polymer monomer and surfactant, crosslinking agent, aided initiating and initiator is 1: 0.001~0.003:0.01~0.03:0.001~0.003:0.0001~0.0003.

2. a kind of preparation method of the bionical camouflage painting color-changing membrane of chameleon according to claim 1, which is characterized in that The nano-metal particle is the spherical nano silver of the spherical nano-Ag particles of 5nm, the spherical nano-Ag particles of 20nm, 30nm Particle, the spherical nano-Ag particles of 10nm, the spherical nanogold particle of 15nm or 10nm spherical nano copper particle.

3. a kind of preparation method of the bionical camouflage painting color-changing membrane of chameleon according to claim 1, which is characterized in that The mass ratio of the heat-sensible high polymer monomer and nano-metal particle is 1:1 × 10^-9~3 × 10^-9。

4. a kind of preparation method of the bionical camouflage painting color-changing membrane of chameleon according to claim 1, which is characterized in that The silica photonic crystal template is the silica photonic crystal that the partial size of stober method preparation is 250~300nm Template.

5. a kind of preparation method of the bionical camouflage painting color-changing membrane of chameleon according to claim 1, which is characterized in that The concentration of the hydrofluoric acid solution is 10~15g/L, and the antitemplate is cleaned repeatedly in deionized water to conductivity 2- 5us/cm。