阅读说明：本技术 一种快速、简单的机械膨胀变色机理装置的制备方法 (Preparation method of rapid and simple mechanical expansion color change mechanism device ) 是由 苏彬 彭灵慧 于 2020-05-29 设计创作，主要内容包括：本发明公开了一种快速、简单的机械膨胀变色机理装置的制备方法,由空心管、双层弹性膜、底色填充物及活塞组成,所述双层弹性膜固定包覆所述空心管的一端,所述底色填充物填充于所述空心管内,所述活塞设置于所述空心管的另一端,本发明的装置成本低、制备简单、操作容易,可控制,方法所用设备简单,光控双层弹性膜及底色填充物材料的颜色组成、结构和性能可以根据需要进行控制。装置具有结构稳定、快速响应、全色谱、大尺寸及可重复变色等特点。该变色装置,主要用作变色显示、广告、军事伪装及装饰等领域。(The invention discloses a preparation method of a quick and simple mechanical expansion color change mechanism device, which consists of a hollow tube, a double-layer elastic membrane, a ground color filler and a piston, wherein the double-layer elastic membrane is fixedly coated on one end of the hollow tube, the ground color filler is filled in the hollow tube, and the piston is arranged at the other end of the hollow tube. The device has the characteristics of stable structure, quick response, full chromatogram, large size, repeatable color change and the like. The color changing device is mainly used in the fields of color changing display, advertisement, military camouflage, decoration and the like.)

1. A quick, simple mechanical expansion mechanism device that discolours which characterized in that: the color printing ink is composed of a hollow tube, a double-layer elastic film, a ground color filler and a piston, wherein the double-layer elastic film fixedly wraps one end of the hollow tube, the ground color filler is filled in the hollow tube, the piston is arranged at the other end of the hollow tube, and the diameter and the length of the hollow tube are respectively 1 mu m-1 cm and 1 mm-1 m; the thickness of the double-layer elastic film is 100-500 mu m, the thickness ratio of an upper layer to a lower layer in the film is 10/1-1/10, the upper layer film is a mixed film of an elastic polymer and an inorganic pigment, and the lower layer film is a pure elastic polymer; the mass ratio of the inorganic pigment in the upper layer film is 0.1-70%; the mass ratio of the dye in the ground color filler is 0.01-70%.

2. The fast, simple mechanical expansive color change mechanism device of claim 1, wherein: the double-layer elastic membrane is made of a high-molecular elastic material.

3. The fast, simple mechanical expansive color change mechanism device of claim 2, wherein: the high-molecular elastic material is one or a combination of more of natural rubber, synthetic rubber, polyurethane and polybutylene terephthalate adipate.

4. The fast, simple mechanical expansive color change mechanism device of claim 1, wherein: the ground color filler is one or more of aqueous solution of dye, organic solution or dyed hydrogel and dyed plasticine.

5. The fast, simple mechanical expansive color change mechanism device of claim 1, wherein: the preparation method of the double-layer elastic film comprises the following steps:

(1) dissolving a high-molecular elastomer precursor into an organic or inorganic solvent by a mechanical stirring/vibration method, wherein the mass percentage concentration of a polymer in a mixed solution is 1-90%, so as to form an elastomer solution A, and dividing the elastomer solution A into two parts;

(2) dispersing inorganic pigment particles in one part of the solution A obtained in the step (1) by a mechanical stirring/vibration method, and mixing to form a uniform mixed solution B; wherein, the mass percentage concentration of the inorganic dye particles is 1 to 70 percent;

(3) pouring the solution A into a culture dish, fully spreading the culture dish, and putting the culture dish into an oven to be dried to be semi-dry;

(4) and (4) pouring the mixed solution B into the elastomer culture dish obtained in the step (3), and putting the elastomer culture dish into an oven to be dried completely to obtain the double-layer elastic membrane.

6. The fast, simple mechanical expansive color change mechanism device of claim 5, wherein: the stirring temperature in the step (1-2) is 30-120 ℃.

7. The fast, simple mechanical expansive color change mechanism device of claim 5, wherein: the stirring speed in the step (1-2) is 50-200 r/min.

8. The fast, simple mechanical expansive color change mechanism device of claim 5, wherein: the stirring time in the step (1-2) is 1-5 hours.

9. The fast, simple mechanical expansive color change mechanism device of claim 5, wherein: the step (3) of drying to be semi-dry refers to removing part of the solvent and keeping the adhesion of the solvent, wherein the drying temperature is 50-120 ℃, and the time is 10-240 min.

10. The fast, simple mechanical expansive color change mechanism device of claim 5, wherein: and (4) drying to be completely dry refers to removing the solvent in the elastomer to obtain the solid elastomer, wherein the drying temperature is 50-120 ℃, and the drying time is 10-720 min.

Technical Field

The invention relates to the field of color-changing display and camouflage devices, in particular to a preparation method of a quick and simple mechanical expansion color-changing mechanism device.

Background

The color-changing material or technology has wide application prospect in the fields of display, military camouflage, sensing and the like. However, the current research on color-changing material devices still has major disadvantages, for example, the existing color-changing materials or devices have high material cost, complicated devices (such as patent CN103105794B), long response time (such as patent CN109594112A) and the problem that only certain colors can change color (such as patent CN103757938B), which limits their applications. The light-regulating double-layer elastic film provided by the invention is used for regulating the light transmission and the reflectivity of the elastic film through mechanical expansion so as to display/hide the bottom color filler. The color A of the double-layer elastic film is shown before color change, and the color B of the ground color filler is shown after color change, so that the effect of quick color change is achieved. The light-modulation double-layer elastic film has the characteristics of low price, easiness in preparation, good light modulation effect, fatigue resistance and the like. Therefore, the color changing combination can be adjusted at will by utilizing the light to regulate the double-layer elastic membrane to combine with the ground color filler, the tubular object and the piston and matching the color A of the double-layer elastic membrane and the color B of the ground color filler at will, so that the color changing device can realize the controllable color changing regulation of the full-color spectrum color. The device has the characteristics of simple manufacture, low cost, programmable control, quick color change response, wide color spectrum and the like. Meanwhile, the device can change color as required, so that the device has the potential of being applied to the fields of display, military camouflage and the like. At present, most of related elastic color-changing films can only realize the change of two colors, and no quick response and full-color spectrum color-changing device prepared by the related elastic films is reported.

Disclosure of Invention

The invention aims to solve the problems and provide a quick and simple preparation method of a device with a mechanical swelling and color changing mechanism.

The invention realizes the purpose through the following technical scheme:

the invention consists of a hollow tube, a double-layer elastic film, a ground color filler and a piston, wherein the double-layer elastic film fixedly wraps one end of the hollow tube, the ground color filler is filled in the hollow tube, the piston is arranged at the other end of the hollow tube, and the diameter and the length of the hollow tube are respectively 1 mu m-1 cm and 1 mm-1 m; the thickness of the double-layer elastic film is 100-500 mu m, the thickness ratio of an upper layer to a lower layer in the film is 10/1-1/10, the upper layer film is a mixed film of an elastic polymer and an inorganic pigment, and the lower layer film is a pure elastic polymer; the mass ratio of the inorganic pigment in the upper layer film is 0.1-70%; the mass ratio of the dye in the ground color filler is 0.01-70%.

Further, the double-layer elastic membrane is made of a high-molecular elastic material. Preferably, the high molecular elastic material is one or more of natural rubber, synthetic rubber, polyurethane and polybutylene terephthalate adipate.

Further, the ground color filler is one or more of aqueous solution of dye, organic solution or dyed hydrogel and dyed plasticine.

The preparation method of the double-layer elastic film comprises the following steps:

(1) dissolving a high-molecular elastomer precursor into an organic or inorganic solvent by a mechanical stirring/vibration method, wherein the mass percentage concentration of a polymer in a mixed solution is 1-90%, so as to form an elastomer solution A, and dividing the elastomer solution A into two parts;

(2) dispersing inorganic pigment particles in one part of the solution A obtained in the step (1) by a mechanical stirring/vibration method, and mixing to form a uniform mixed solution B; wherein, the mass percentage concentration of the inorganic dye particles is 1 to 70 percent;

(3) pouring a certain mass of the solution A into a culture dish, fully spreading the whole culture dish, and putting the culture dish into an oven to be dried to be semi-dry;

(4) and (4) pouring the mixed solution B into the elastomer culture dish obtained in the step (3), and putting the elastomer culture dish into an oven to be dried completely to obtain the double-layer elastic membrane.

Wherein the stirring temperature in the step (1-2) is 30-120 ℃. The stirring speed in the step (1-2) is 50-200 r/min. The stirring time in the step (1-2) is 1-5 hours. The step (3) of drying to be semi-dry refers to removing part of the solvent and keeping the adhesion of the solvent, wherein the drying temperature is 50-120 ℃, and the time is 10-240 min. And (4) drying to be completely dry refers to removing the solvent in the elastomer to obtain the solid elastomer, wherein the drying temperature is 50-120 ℃, and the drying time is 10-720 min.

The core of the color change principle of the invention is a double-layer elastic film. The double-layer elastic film can regulate and control the optical transmittance of the film in the expansion/recovery process so as to display/hide the underlying ground color filler. The color A of the double-layer elastic film is shown before color change, and the color B of the ground color filler is shown after color change, so that the effect of quick color change is achieved. The color A of the double-layer elastic film and the color B of the ground color filler can be adjusted and combined at will, so that the color changing device can realize controllable color changing adjustment of full-color spectrum colors.

The invention has the beneficial effects that:

compared with the prior art, the device has the advantages of low cost, simple preparation, easy operation and controllability, and simple equipment used in the method, and the color composition, structure and performance of the light-operated double-layer elastic film and the ground color filler material can be controlled according to requirements. The device has the characteristics of stable structure, quick response, full chromatogram, large size, repeatable color change and the like. The color changing device is mainly used in the fields of color changing display, advertisement, military camouflage, decoration and the like.

The method has the following specific advantages:

(1) the obtained color-changing device has obvious color-changing effect, simple principle and stable structure;

(2) the preparation method is simple, low in energy consumption, low in cost and short in flow;

(3) the color change response speed is high (within 1 second), and the color can be changed repeatedly (the service life is more than 1 ten thousand times);

(4) full spectrum color change, and color matching (change among various visible light colors) is carried out at will according to color change requirements;

(5) the size is controllable, and the device can be combined into a display array according to the requirements of color change and graphics, and the size of the display array is arbitrary.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a spectrum of the present invention;

FIG. 4 is a top view of an array structure of the present invention;

FIG. 5 is a side view of an array structure of the present invention.

In the figure: 1-hollow tube, 2-double-layer elastic film, 3-ground color filler, 4-piston and 5-steel plate.

Detailed Description

The invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1 and 2: the invention comprises a hollow tube 1, a double-layer elastic film 2, a ground color filler 3 and a piston 4, wherein the double-layer elastic film fixedly wraps one end of the hollow tube, the ground color filler is filled in the hollow tube, the piston is arranged at the other end of the hollow tube, and the diameter and the length of the hollow tube are respectively 1 mu m-1 cm and 1 mm-1 m; the thickness of the double-layer elastic film is 100-500 mu m, the thickness ratio of an upper layer to a lower layer in the film is 10/1-1/10, the upper layer film is a mixed film of an elastic polymer and an inorganic pigment, and the lower layer film is a pure elastic polymer; the mass ratio of the inorganic pigment in the upper layer film is 0.1-70%; the mass ratio of the dye in the ground color filler is 0.01-70%.

Further, the double-layer elastic membrane is made of a high-molecular elastic material. Preferably, the high molecular elastic material is one or more of natural rubber, synthetic rubber, polyurethane and polybutylene terephthalate adipate.

Further, the ground color filler is one or more of aqueous solution of dye, organic solution or dyed hydrogel and dyed plasticine.

The preparation method of the double-layer elastic film comprises the following steps:

(1) dissolving a high-molecular elastomer precursor into an organic or inorganic solvent by a mechanical stirring/vibration method, wherein the mass percentage concentration of a polymer in a mixed solution is 1-90%, so as to form an elastomer solution A, and dividing the elastomer solution A into two parts;

(2) dispersing inorganic pigment particles in one part of the solution A obtained in the step (1) by a mechanical stirring/vibration method, and mixing to form a uniform mixed solution B; wherein, the mass percentage concentration of the inorganic dye particles is 1 to 70 percent;

(3) pouring a certain mass of the solution A into a culture dish, fully spreading the whole culture dish, and putting the culture dish into an oven to be dried to be semi-dry;

(4) and (4) pouring the mixed solution B into the elastomer culture dish obtained in the step (3), and putting the elastomer culture dish into an oven to be dried completely to obtain the double-layer elastic membrane.

Wherein the stirring temperature in the step (1-2) is 30-120 ℃. The stirring speed in the step (1-2) is 50-200 r/min. The stirring time in the step (1-2) is 1-5 hours. The step (3) of drying to be semi-dry refers to removing part of the solvent and keeping the adhesion of the solvent, wherein the drying temperature is 50-120 ℃, and the time is 10-240 min. And (4) drying to be completely dry refers to removing the solvent in the elastomer to obtain the solid elastomer, wherein the drying temperature is 50-120 ℃, and the drying time is 10-720 min.