A new decorative material and its manufacturing method

Abstract

The present invention discloses a novel decorative material and a method for making the same. The specific operation of the method is as follows: injecting a uniformly dispersed mixed solution containing nanoparticles into a transparent container connected to an internal container, and sealing the container directly or after volatilizing a portion of the solvent. The mixed solution comprises 20-60 parts of nanoparticles, 40-80 parts of solvent, and 0-10 parts of colorant by mass. The liquid photonic crystal colloid prepared by the present invention can present a unique color of the liquid photonic crystal colloid in a transparent container, and the color also has a strong metallic luster.

Description

Technical Field

[0001] The invention belongs to the technical field of preparation of decorative materials, and in particular relates to a method for preparing liquid photonic crystal colloid to obtain a novel decorative material with special decorative effects for closed containers. Background Art

[0002] Decorations are items that can beautify, such as the outline and sculpture decoration of the decoration effect picture; or add some accessories to the surface of the body or object to make it more beautiful. Decorations can play the role of embellishment and foil. Common decorations include crystal products, artistic sculptures, decorative paintings, metal artworks, glass products, etc. Among them, glass artworks are widely used because of their excellent heat resistance, light resistance, easy cleaning, high light transmittance and other advantages. Among them, handicrafts that use glass containers to seal fluids to achieve artistic scenes such as miniature landscapes and underwater scenes are widely loved by consumers.

[0003] Photonic crystal material is a photonic bandgap material, which was discovered in nature because of its brilliant colors similar to peacock feathers, butterfly wings, opal, etc. Photonic crystal can realize the diffraction of light by virtue of its certain periodic arrangement, and selectively reflect the incident light when the material itself is colorless, realizing the observable bright colors like rainbow, and at the same time, its color has obvious metallic luster.

[0004] When ordinary photonic crystal colloidal emulsion is stored in a container, only at the container wall, due to the influence of the interface force, the photonic crystal spheres may spontaneously arrange into a long-range orderly stacking structure, resulting in the unique iridescent effect of photonic crystals. However, inside the emulsion, due to the existence of colloidal Brownian motion, the photonic crystal spheres are always in a random (long-range disordered) state, making the inside of the emulsion always milky white. Moreover, as long as there is a relatively strong vibration outside, even the photonic crystal spheres arranged in an orderly manner on the container wall will immediately become disordered. Summary of the invention

[0005] The purpose of the present invention is to provide a novel decorative material and a method for making the same, wherein the sample prepared by the novel decorative material can present a unique liquid iridescent effect.

[0006] The manufacturing method of the novel decorative material is as follows: injecting a mixed liquid containing uniformly dispersed nanoparticles into a transparent container connected to the inner container, and sealing the container directly or after volatilizing part of the solvent.

[0007] The mixed solution comprises, by weight, 20-60 parts of nanoparticles, 40-80 parts of solvent, and 0-10 parts of colorant.

[0008] The nanoparticles are selected from at least one of polystyrene, ethylene-propylene resin, polyacrylate, polyurethane, glass microbeads, and ferrosoferric oxide nanoparticles.

[0009] The particle size of the nanoparticles is less than 800 nm, preferably 100-600 nm, and optimally 200-400 nm; the monodispersity index PDI is less than 0.1.

[0010] The solvent is selected from at least one of water, ethanol, ethylene glycol, propylene glycol, glycerol, 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol 200, polyethylene glycol 400, methyl silicone oil, ethyl silicone oil, vegetable oil, and liquid paraffin.

[0011] The colorant is selected from organic pigments or inorganic pigments with a particle size D99 less than 350nm, including titanium dioxide, carbon black, iron black, cadmium red, iron yellow, chrome green, black SP, acid yellow, active red, direct blue, etc.

[0012] The material of the container is selected from inorganic glass, ceramic, polyethylene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polycarbonate, polytetrafluoroethylene, polyurethane, or polyethylene terephthalate.

[0013] The light transmittance of the container is greater than 85%; and the contact angle of the inner wall of the container to water is less than 40 degrees.

[0014] The solvent in the liquid mixture may be a mutually soluble homogeneous phase or an immiscible phase separation system. When the solvent system is an immiscible phase separation system, the separated phase may be in an upper and lower layered state due to density difference, or may exist in the system in the form of micro droplets and spheres.

[0015] In the present invention, a colorant may be added or not. The use of the colorant needs to fully consider the superposition effect of the pigment color and the structural color. For different liquid photonic crystal colors, similar colors or black may be selected for superposition. When black is selected for superposition, the black pigment absorbs the incident light, making the color of the liquid photonic crystal sharper and obtaining a gorgeous composite color expression.

[0016] When the mixed liquid is left standing in a container, the repulsive force of the charge and the interaction of the van der Waals force between the molecules of the monodisperse polymer latex spheres quickly reach equilibrium, completing the formation of non-contact densely packed colloidal crystals filled with solvents. When the mixed liquid is an oil-water phase system, the monodisperse polymer latex spheres in the water phase complete the regular arrangement of liquid photonic crystals at a suitable concentration, while the oil phase exists in the form of layers or oil droplets. At this time, the unique three-dimensional layered sense formed by the oil-water separation form, combined with the color expression of each phase of oil and water, can also create a unique artistic effect.

[0017] The present invention makes use of the color effect of liquid photonic crystal colloids to enable it to be used in the manufacturing technology of a new generation of art crafts. Through the self-arrangement effect of monodisperse polymer latex balls on the inner wall of the container, the colorful color presentation of the container is achieved. At the same time, with the help of the processing and manufacturing technology of the container, a unique fluid channel can be constructed inside the container, so that the observation surface presents a designed pattern effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a digital camera photo of the laminated glass fluid painting produced in Example 1.

[0019] Figure 2 This is a digital camera photo of the fluid painting produced in Example 5. DETAILED DESCRIPTION Example 1

[0020] A polystyrene monodisperse aqueous emulsion (PID 0.05) with a particle size of 230 nm and a solid content of 40% was obtained by soap-free emulsion polymerization. 1000 g of polystyrene emulsion, 5 g of carbon black, and 200 g of ethylene glycol were taken and uniformly stirred to obtain a mixed solution containing particles for use.

[0021] Take two square tempered glass plates with a thickness of 3 mm and a side length of 30 cm, add a 5 mm thick plastic spacer between the two glass plates to control the distance between the two glass plates, and seal the three sides of the two glass plates with waterproof glass glue (commercially available). After the glass glue is completely solidified, a glass groove with a side length of 30 cm and a depth of 5 mm is formed.

[0022] Pour the prepared mixed liquid into the glass tank, seal the opening edge of the glass tank with glass glue, and the production is completed after the glass glue solidifies. Example 2

[0023] Purchase a monodisperse glass microsphere aqueous dispersion with a particle size of 250 nm and a solid content of 10%. Add 1000 g of the glass microsphere aqueous dispersion, 200 g of propylene glycol, 10 g of permanent red dye, and 2 g of N,N-dimethyltridecylamine, stir and mix evenly, then use a rotary evaporator to remove 800 g of the solvent by reduced pressure distillation at 60 degrees Celsius to obtain about 400 g of a concentrated mixed solution containing particles for use.

[0024] Take two square tempered glass plates with a thickness of 3 mm and a side length of 30 cm, take 10 g of the mixed liquid and drop it directly on the center of one glass plate. Use another glass plate to add the mixed liquid between the two glass plates, let the mixed liquid flow level, and then seal the edges of the two glass plates with glass glue. After the glass glue solidifies, the production is completed. Example 3

[0025] A polystyrene aqueous emulsion with a particle size of 200 nm and a solid content of 40% was used. 200 g of polystyrene aqueous emulsion, 50 g of commercially available water-based acrylic paint red, 20 g of acrylic paint diluent, and 100 g of polyethylene glycol 200 were uniformly stirred and mixed to obtain a mixed solution containing particles for standby use.

[0026] Take two square tempered glass plates with a thickness of 3 mm and a side length of 30 cm, take 10 g of the mixed liquid and drop it directly on the center of one glass plate. Use another glass plate to add the mixed liquid between the two glass plates, let the mixed liquid flow level, and then seal the edges of the two glass plates with glass glue. After the glass glue solidifies, the production is completed. Example 4

[0027] Use 200nm poly(methyl methacrylate-acrylic acid-styrene) latex ball water emulsion with a solid content of 40%. Take 300g of polystyrene water emulsion, 100g of methyl silicone oil, 10g of solvent red 135, and 100g of propylene glycol, stir and mix evenly to obtain a mixed solution containing particles for use.

[0028] Take two acrylic plates with a thickness of 1 mm and a side length of 20 cm, take 10 g of the mixed liquid and drop it directly on the center of one acrylic plate, use another acrylic plate to add the mixed liquid between the two acrylic plates, let the mixed liquid flow levelly, and then seal the edges of the two glass plates with epoxy sealant. After the sealant solidifies, the production is completed. Example 5

[0029] Purchase a monodisperse r-Fe3O4 aqueous dispersion with a particle size of 150 nm and a solid content of 10%. Take 600 g of the r-Fe3O4 aqueous dispersion, 40 g of polyethylene glycol 200, 10 g of glycerol, 5 g of ethylene glycol, and 10 g of acid yellow, and stir and mix them evenly to obtain a mixed solution containing particles for later use.

[0030] Add 2g of commercially available red water-based acrylic paint, 3g of blue water-based acrylic paint, 2g of green water-based acrylic paint, 5g of water-based acrylic paint diluent, and 10g of homemade r-Fe3O4 mixed solution into a 500ml beaker in sequence, and stir with disposable chopsticks for 30 seconds to obtain an acrylic mixed solution for use.

[0031] Take two transparent PET plates with a thickness of 1 mm and a side length of 20 cm, take 10 g of the propylene mixture and drop it directly on the center of one acrylic plate. Use another acrylic plate to add the mixture between the two acrylic plates, let the mixture flow level, and then seal the edges of the two glass plates with epoxy sealant. After the sealant solidifies, the production is completed.

[0032] See the completed effect Figure 2 . Example 6

[0033] 30nm silica beads (PDI 0.05) were prepared by the Stober method in the laboratory.

[0034] Take 20g of silica spheres and ultrasonically disperse them in 100g of ethanol until a uniform translucent state is formed. Add 50g of water, 5g of glycerol, 4001g of polyethylene glycol, and 0.5g of water-soluble natural red pigment, and continue ultrasonically dispersing to form a uniform translucent slightly reddish mixed solution.

[0035] Take a sealable glass container, pour the mixture into it, and leave it open at room temperature (or 20°C, 20% humidity). As the ethanol and water in the mixture continue to evaporate, the viscosity of the mixture gradually increases. At the same time, some of the silica spheres in the mixture will accumulate and enrich on the bottle wall. When the concentration is certain (after more than 20g of the solvent has evaporated), an obvious iridescent structural color effect (angular color) can be observed in the glass container. At this time, the sealed container is completed. Example 7

[0036] 250 nanometer polyurethane beads (PDI 0.1) were prepared by microemulsion method.

[0037] Take 50 g of polyurethane beads and 4 g of water-based black dye (BLACK27), and disperse them in 100 g of deionized water by ultrasonication to obtain a mixed solution.

[0038] Take a sealable glass container, pour the mixture into it, and leave it open at room temperature (or 20℃, 20% humidity). As the ethanol and water in the mixture continue to evaporate, the viscosity of the mixture gradually increases. At the same time, some of the polyurethane beads in the mixture will accumulate and enrich on the bottle wall. When the concentration is certain, seal the glass container.

[0039] A red to green effect different from the black dye can be observed in the glass container (there are certain changes depending on the concentration). Since the particle size distribution of the polyurethane beads used is not very uniform, the arrangement is not regular enough. Therefore, the structural color effect of this embodiment is not as strong as other embodiments, but the structural color can still be seen. Example 8

[0040] A polystyrene monodisperse aqueous emulsion (PID0.05) with a particle size of 230 nm and a solid content of 40% was used. 350 nm hydrophilic silica beads (PDI0.05) were ultrasonically dispersed in deionized water to obtain a translucent mixed solution with a solid content of 10%.

[0041] Take 1000 g of polystyrene emulsion, 1000 g of silica mixed liquid, 10 g of carbon black, and 400 g of ethylene glycol, and stir and mix them evenly to obtain a mixed liquid containing particles for use.

[0042] Take two square tempered glass plates with a thickness of 3 mm and a side length of 30 cm, add a 5 mm thick plastic spacer between the two glass plates to control the distance between the two glass plates, and seal the three sides of the two glass plates with waterproof glass glue (commercially available). After the glass glue is completely solidified, a glass groove with a side length of 30 cm and a depth of 5 mm is formed.

[0043] Pour the prepared mixed liquid into the glass tank, seal the opening edge of the glass tank with glass glue, and the production is completed after the glass glue solidifies.

[0044] After the production is completed, place the glass plate flat for a while and observe the upper and lower surfaces of the glass plate. You will find that due to the different densities of the polystyrene balls and the glass balls, completely different effects (pattern effect and structural color effect) will be formed on the two sides of the glass plate.

[0045] The above describes the implementable method of the present invention in detail, but the present invention is not limited thereto. Simple modifications within the technical concept of the present invention or combinations suitable for the present method should be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

[0046] In addition, the various embodiments of the present invention can be arbitrarily combined without contradiction, and as long as they do not violate the concept of the present invention, they should all be regarded as the contents disclosed by the present invention.

Claims

1. A method for making a decorative material, characterized in that: The specific operation of the preparation method is: injecting the uniformly dispersed mixed solution containing nanoparticles into a transparent container connected to the inner container, and sealing it directly or after volatilizing part of the solvent; The mixed solution comprises, by weight, 20-60 parts of nanoparticles, 40-80 parts of solvent, and 0-10 parts of colorant, and the amount of colorant added is not 0; The nanoparticles are selected from at least one of polystyrene, ethylene-propylene resin, polyacrylate, polyurethane, glass microbeads, and ferrosoferric oxide nanoparticles; The solvent is selected from at least one of water, ethanol, ethylene glycol, propylene glycol, glycerol, 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, diethylene glycol, triethylene glycol, polyethylene glycol 200, polyethylene glycol 400, methyl silicone oil, ethyl silicone oil, vegetable oil, and liquid paraffin; The colorant is selected from organic pigments or inorganic pigments with a particle size D99 less than 350nm; The particle size of the nanoparticles is less than 800 nm, and the monodispersity index PDI is less than 0.1; The light transmittance of the container is greater than 85%; and the contact angle of the inner wall of the container to water is less than 40 degrees.

2. The method for making a decorative material according to claim 1, characterized in that: The particle size of the nanoparticles is 100-600nm.

3. The method for making a decorative material according to claim 1, characterized in that: The particle size of the nanoparticles is 200-400nm.

4. The method for making a decorative material according to claim 1, characterized in that: The material of the container is selected from inorganic glass, ceramic, polyethylene, polyvinyl chloride, polystyrene, polymethyl methacrylate, polycarbonate, polytetrafluoroethylene, polyurethane, or polyethylene terephthalate.

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