195results about How to "Improve coloring efficiency" patented technology

The invention provides a tungsten trioxide/polyaniline core-shell nanowire array radiochromic film and a preparation method thereof. The preparation method comprises the following steps: dissolving white tungstic acid in aqueous hydrogen peroxide liquor to prepare peroxide tungstate liquor; coating the peroxide tungstate liquor on an electric conductive face of a clean electric conductive substrate; dissolving tungstate in alcohol to form precursor liquor, fixing the electric conductive substrate in a reaction kettle, adding the precursor liquor into the reaction kettle, carrying out a reaction at 150-250 DEG C for 8-16 hours, and taking out and carrying out thermal treatment at 300-450 DEG C for 1-3 hours to obtain a tungsten trioxide nanowire array; and mixing aniline and dilute sulphuric acid to form electrolyte for preparing polyaniline and carrying out electro-polymerization on polyaniline to obtain the tungsten trioxide/polyaniline core-shell nanowire array radiochromic film. The preparation process is convenient to control, lower in preparation cost and easy to realize industrialization. The film has the advantages of large spectrum adjustment range, abundant radiochromic types, high coloring efficiency, fast response speed, long cycle life and the like.

The invention discloses a textile deepening agent and a preparation method thereof. The textile deepening agent comprises the following steps of: 1) mixing nano silica, a silicane coupler and alcohol, and reacting for 16-30 hours at a temperature of 10 DEG C to 35 DEG C to obtain silicane coupler modified nano silica solution; 2) using methyl methacrylate to displace alcohol, adding butyl acrylate, hexadecane and water, after uniformly mixing, mixing with dodecy sodium sulfate water solution, and obtaining emulsion after the mixture is dispersed; and 3) under the protection of protective gas, increasing a temperature of the emulsion to 50 DEG C to 90 DEG C, adding potassium peroxydisulfate water solution, initiating a polymerization reaction, and obtaining the textile deepening agent after reacting for 2-4 hours at the temperature of 50 DEGC to 90 DEG C. The preparation method is simple, is easy to implement, and is easy to be applied in the industrialized large-scale production. The invention further discloses a textile deepening agent, a silica particle is connected with a polymer through the surface silicane coupler, so that the coloring efficiency of a dye is increased, a color of dyeing textile is deepened, and the textile is provided with a remarkable washing resistant property.

The invention relates to a method for preparing a vertically aligned tungsten oxide nano structural electrochromic film. The method comprises the following steps of: 1) dissolving tungstic acid in a mixed solution of hydrogen peroxide and water, heating until tungstic acid is fully dissolved, and cooling to obtain transparent sol; 2) coating the obtained transparent sol on the surface of fluorine-doped tin oxide (FTO) conducting glass which is subjected to ultrasonic washing in a spinning way, and calcining to obtain the FTO conducting glass with a tungsten oxide crystal seed layer; and 3) preparing a reaction solution containing the transparent sol, hydrochloric acid, urea and solvent, immersing the obtained FTO conducting glass with the tungsten oxide crystal seed layer in a hydrothermal kettle in which the reaction solution is filled, preserving heat at the temperature of between 150 and 180 DEG C for 6 to 12 hours, naturally cooling to room temperature, washing and drying to obtain the vertically aligned tungsten oxide nano structural electrochromic film. A preparation process is simple and low in cost; by the method, the electrochromic properties such as color change speed, coloration efficiency, cycling stability and the like of the film are effectively improved; and the method has the industrial application prospect in the aspect of preparing the film on the surface of the glass.

The invention relates a preparation method of an electrochromic film having a photonic crystal structure. The preparation method solves the problem that the existing electrochromic material has irreversibility so that material reflectivity is not improved and solar absorptance is not reduced. The preparation method of the electrochromic film having a photonic crystal structure comprises the following steps of 1, base material surface treatment, 2, colloidal solution preparation, 3, film-type colloidal crystal template preparation, 4, solution preparation, 5, electrode preparation and 6, film electrochemical preparation. A polyaniline photonic crystal film having an inverse opal structure and prepared by the preparation method has excellent electrochromism response performances. The preparation method can be used for the field of preparation and production of the electrochromic film having a photonic crystal structure.

The invention discloses a printing and dyeing process which comprises the following steps: (1) preprocessing; (2) dyeing, namely putting a preprocessed fabric into a dyeing solution, heating the dyeing solution to 45-55 DEG C at speed of 1-2 DEG C/min, and keeping the temperature for 20-40 minutes; adding sodium chloride, heating to 60-70 DEG C at the speed of 1-2 DEG C/min, and keeping the temperature for 20-40 minutes; adding sodium carbonate, heating to 80-90 DEG C at speed of 0.2-1 DEG C/min, and keeping the temperature for 20-40 minutes; finally cooling at the speed of 1-2 DEG C/min to finish the dyeing process; (3) post-processing. According to the printing and dyeing process, the dye-uptake rate and the dye-uptake process are adjusted to be optimal through controlling temperature ranges in the dyeing process, so that a printed and dyed product is good in dyeing uniformity and high in color fastness. The printing and dyeing process is simple, can realize large-scale industrialization production and bring good economic benefits to enterprises, and has a wide prospect.

The invention relates to a method for preparing a nickel oxide electrochromic film by a hydrothermal method. The method comprises the following steps of: dissolving nickel acetate tetrahydrate in a mixed solution of alcohol and n-butyl alcohol, dropwise adding ammonia water to the mixed solution after the nickel acetate tetrahydrate is dissolved to obtain sol; coating the sol to the surface of FTO (Fluorine-doped Tin Oxide) conductive glass in a rotary manner, drying the sol to obtain the FTO conductive glass with a crystal seed layer; mixing the nickel acetate tetrahydrate, urea and a solvent to obtain a reaction solution; immersing the FTO conductive glass with the crystal seed layer to the reaction solution for carrying out hydrothermal reaction; keeping the reaction solution for 6 hours to 12 hours under the condition of 160 DEG C to 180 DEG C, cooling the reaction solution to the room temperature, cleaning, drying and roasting to obtain the nickel oxide electrochromic film. The preparation method disclosed by the invention is simple, low in cost and likely applied to the glass surface film-making industry. The nanometer structure nickel oxide film directly grows on the surface of the FTO conductive glass by a hydrothermal method, so that the nickel oxide and the substrate have better binding force for being beneficial to electron conduction. Meanwhile, the electrochemical stability of the film is also improved.

The invention relates to a bifunctional device based on tungsten trioxide and prussian blue. A tungsten trioxide film serves as a cathode, a prussian blue film serves as an anode, and an electrolyte is filled between the cathode and the anode, so that the bifunctional device is formed. The bifunctional device has electrochromism and capacitive performance, and the energy storage level of the bifunctional device can be visually displayed by color change. The device disclosed by the invention can serve as an electrochromism device and can also serve as a capacitor device, and is a bifunctional device with electrochromism and capacitive performance.

The invention discloses an electrochromic material based on electrically induced acid effect and an electrochromic device prepared from the electrochromic material. The electrochromic material based on the electrically induced acid effect is prepared by mixing electrochromic molecules and electrolyte; the electrochromic material based on the electrically induced acid effect is used for preparing the electrochromic device; the structure of the electrochromic device is composed of a first electrode, an electrochromic medium, an ion exchange membrane, auxiliary medium and a second electrode. According to the electrochromic material disclosed by the invention, an electrically induced acid part and an acid response part are connected with a molecule, then the coloring efficiency of the electrochromic material served as the electrochromic device can be improved, and the response speed of the electrochromic device also can be increased. After proton being transferred, since the protonated acid response part is connected with a proton donor part of the electrically induced acid through a covalent bond, the acid response part and the proton donor part do not diffuse away from each other, then the proton recovery can be accelerated, namely the color fading speed of the electrochromic device is increased.

The invention discloses silicon-dioxide antireflection coating liquid, a preparation method of the silicon-dioxide antireflection coating liquid and application of the silicon-dioxide antireflection coating liquid in polyester fabrics. The preparation method is simple, easy, mild in condition and easy to control, and the solid content of the prepared antireflection coating liquid is high. The preparation method comprises the following steps: adding a silicon-dioxide aqueous dispersion liquid which is sold on the market, and a silane coupling agent into alcohol so as to obtain a reaction liquid, adjusting the pH value of the reaction liquid to 3-8, rising the temperature to 20-50 DEG C, and reacting for 12-40 hours so as to obtain the nano-silicon-dioxide antireflection coating liquid with the alcoxyl groups on the surface finally. The prepared silicon-dioxide antireflection coating liquid with the alcoxyl groups on the surface can be used for deepening finish of one polyester fabric, and an antireflection film with a nanoporous structure is built on the surface of the fabric, so that the fabric has the rich-color effect, the deepening durability is improved and the hygroscopicity and the wearing comfort of the fabric are not changed.

The invention discloses an ultrafast-response overcharge-prevention electrochromic device and a preparation method thereof. The ultrafast-response overcharge-prevention electrochromic device comprisesa first transparent electrode, an ionic conduction layer, an organic electrochromic layer, an inorganic electrochromic layer and a second transparent electrode which are arranged in a sequentially laminated way. The ultrafast-response overcharge-prevention electrochromic device has the following beneficial effects that (1) the ionic conduction layer has the great pore diameter and is provided with many pore passages and facilitates positive ion transmission, so that the response speed of the device is accelerated; (2) the cooperative action of a plurality of positive ions is realized in the electrochromic process of the electrochromic device, so that the device has very high regulation capability; (3) in the ultrafast-response overcharge-prevention electrochromic device, a resin layer perse has good insulation capability, so that the electricity leakage can be prevented without adding an electron blocking layer; and (4) the wetting performance of a solid-liquid interface is better than that of solid-solid interface contact, so that the steric hindrance between interfaces is reduced, and the very high coloring efficiency is realized.

The invention relates to a preparation method of a quasi-solid electrochromic device. The device consists of a first substrate, a first transparent conductive layer, an electrochromic layer, an ion transmission layer, an ion storage layer, a second transparent conductive layer and a second substrate sequentially. The preparation method comprises the following steps: (1) preparing the first functional substrate; (2) preparing the second functional substrate; (3) preparing the ion storage layer; (4) performing alignment heating and laminating; (5) removing bubbles by a high-pressure kettle; and (6) gluing frames. The preparation method of the quasi-solid electrochromic device has the advantages of simple method, low investment cost, high quality controllability of finished products, and high color-changing uniformity, and can realize large-area industrialized production.

The invention discloses an electrochromic polymer material based on a combined strategy and preparation of an electrochromic device. The electrochromic polymer material based on the combined strategyis formed by mixing an electrochromic polymer and electrolyte. The electrochromic device is prepared by the electrochromic polymer material based on the combined strategy. A structure of the electrochromic device is composed of a first electrode, an electrochromic medium, an ion exchange membrane, an auxiliary medium, and a second electrode. The coloring efficiency and coloring contrast ratio of the electrochromic device are improved, the response speed of the electrochromic device is accelerated, and the time of bistable state display is prolonged; and the electrochromic polymer material based on the combined strategy has the advantages of color adjustability and excellent circulation reversibility.

The invention discloses an aniline oligomer derivative with electrochromic property and a preparation method thereof. A class A electrochromic material obtained by the method is a linear aniline oligomer derivative with aniline oligomer in the middle and amino and carboxyl groups respectively at two ends, and the class A electrochromic material is obtained by reacting dicarboxylic anhydride with an aniline oligomer. A class B electrochromic material is a three-arm star-type aniline oligomer derivative and is prepared by reacting a triphenylamine homolog as a intermediate with the a class A linear aniline oligomer derivative; a class C electrochromic material is a three-arm star-type block aniline oligomer derivative prepared by introducing a polyethylene glycol ether chain into the obtained class B three-arm star-type aniline oligomer derivatives, and is a block copolymer with an electrochromic hard segment and an ionic conduction soft segment. The obtained class C three-arm star-type block aniline oligomer derivative also has outstanding characteristics of electrochromic and ion conduction functions, and can solve the problem of microphase separation of an electrochromic layer and ionic conductor layer of a conventional electrochromic device.

The invention discloses a coloring device for a 3D (Three Dimensional) printing model. The coloring device comprises a mixing device, a moving device, a spraying device and a drying device, wherein the mixing device comprises a pigment box and a guide pipe; one side face of the pigment box is connected with the top of the moving device; the pigment box is provided with a plurality of pigment regions; outlet ends of the pigment regions are connected with a mixing cavity; a motor is arranged in the mixing cavity; a rotary shaft of the motor is fixedly provided with a stirrer; the lower end of the mixing cavity is connected with one end of the guide pipe; the other end of the guide pipe is connected with the spraying device; spraying nozzles, which are uniformly distributed, are arranged at the lower end of the spraying device; a fixed rod is arranged at one side of the outer part of the spraying device; the spraying device is connected with the outer side of the bottom of the moving device through the fixed rod; the outer side of the spraying device is connected with the drying device; an air outlet of the drying device is aligned to the spraying nozzles. According to the coloring device disclosed by the invention, pigments are uniformly mixed in the mixing cavity through the stirring of the stirrer and a blended color has uniform color and luster; the pigments which are uniformly blended are sprayed on the 3D model through the spraying nozzles which are uniformly distributed on the spraying device, so that the 3D model is uniformly colored.

The invention provides a semitransparent polymer solar cell having a gaschromic function and a preparation method thereof and belong to the technical field of organic optoelectronic devices. From bottom to top, the solar cell consists of an ITO conductive glass cathode, a PFN cathode buffer layer, a PTB7-Th:FOIC active layer, a MoO3 anode buffer layer, a Ag anode and a WO3/Pt gaschromic structurallayer. An active layer acceptor material FOIC has the very strong light absorption from a visible light area to a near-infrared area (600-950nm) and has the high electron mobility of 1.2*10-3cm2V-1s-1, extinction coefficient can be as high as 2*105 m-1 cm-1, and a low band gap is 1.32 eV. A WO3 film has strong absorption in the infrared and visible wave bands of a solar spectrum in a colored state and is combined with a semitransparent polymer solar cell device, the capability of absorbing light in the visible and infrared area of the device is remarkably enhanced under the hydrogen introduction condition, and accordingly the purpose of improving photoelectric conversion efficiency is achieved.

The invention belongs to the technical field of electrochromic materials, and discloses an electrochromic material and an electrochromic device based on dynamic metal-ligand complexation. The electrochromic material is formed by mixing metal ions, the electrochromic material and an electrolyte, the electrochromic device is designed based on the dynamic metal-ligand complexation, and the structureof the electrochromic device is divided into a liquid electrochromic device structure and a solid electrochromic device structure. The liquid electrochromic device structurally comprises a first electrode, an electrochromic medium and a second electrode. The solid electrochromic device structurally comprises a first electrode, an electrochromic medium, an ion exchange membrane, an auxiliary mediumand a second electrode. The electrochromic material and the electrochromic device realize adjustable full-visible spectrum and high contrast, and have the advantages of high coloring efficiency, quick electrochromic response, excellent cycle reversibility, ultralow cost and simple preparation process.

The invention relates to a dye grinding device, in particular to a dye grinding device for leather dyeing. According to the technical problem to be solved, the dye grinding device for leather dyeing is provided. In order to solve the technical problem, the dye grinding device for leather dyeing is provided, and comprises a support, a first bearing pedestal, a first rotating shaft, a first small belt pulley, a first flat belt, a second bearing pedestal, a second rotating shaft, a second small belt pulley, a box body and the like. A grinding body is arranged in the middle of the right side wall of the interior of the support, first penetrating holes are formed in the middle of the top and the middle of the bottom of the grinding body, and first sealing rings are arranged in the first penetrating holes. A grinding box is arranged inside the grinding body, and a first rubber guide sleeve is arranged in the middle of the top of the grinding box. The dye grinding device for leather dyeing achieves the effects that dye grinding operation is more sufficient and more thorough, and ground dye is fine and smooth, the dye coloring efficiency is improved, the phenomenon that due to the fact that dye is coarse, leather is damaged is avoided, the dye recovery efficiency is high, and the grinding efficiency is high.

The invention relates to a hair-coloring elastin composition as well as a preparation method and a using method thereof. The hair-coloring elastin composition is prepared from water and the following raw material components in percentage by weight: 1-20% of pigments, 1-30% of film forming agents, 0.1-10% of hair protecting and conditioning agents, 0.2-3% of emulsifying agents and 0.1-3% of thickening agents, wherein the film forming agents are selected from one or more of acrylic (ester) copolymers, polyurethane-14/acrylic (ester) copolymers AMP salts; the pigments are cosmetic-grade coatings. The hair-coloring elastin composition is capable of uniformly and completely covering the whole hair at 360 degrees and is conveniently removed; the hair-coloring elastin composition can be removed by using hair shampoos with surfactants; the original hair color can be restored; the colors can be conveniently dyed, removed and replaced according to the requirements; the hair-coloring elastin composition can achieve one-time temporary coloring, has good hair protecting and coloring effects, and is free of strong shaping effect; the colored hair style is natural and smooth.