33results about How to "Improve discoloration efficiency" patented technology

The invention provides an electro-chromic material. The electro-chromic material comprises an upper glass substrate, a conducting reflective layer, an electro-chromic material, a transparent conducting layer and a lower glass substrate which are stacked in sequence. The material performance of the conducting reflective layer of the electro-chromic material is excellent, the electro-chromic material has high reflectivity and stability, a contact-potential barrier between an electrode and the electro-chromic material is reduced, drive voltage is reduced, the electro-chromic efficiency is improved, and the service life of a device is prolonged. In addition, silver alloy having excellent performance serves as a conducting reflective film, and an electro-chromic device is stable in performance.

The invention belongs to the field of materials, and particularly relates to a photochromic material and application thereof. The photochromic material is prepared through a method which includes thesteps that (a) tungsten and / or molybdenum source compounds, a surfactant and a solvent are mixed to obtain a first solution, and the surfactant and acid liquor are mixed to obtain a second solution, wherein the surfactant is one or more of lignosulfonate, heavy alkylbenzene sulfonate, alkyl sulfonate, cetyl trimethyl ammonium bromide, sodium dodecyl benzene sulfonate, polyvinylpyrrolidone, polyvinyl alcohol, disodium ethylene diamine tetraacetic acid, lauroyl glutamic acid, sodium octadecyl sulfate and fatty alcohol-polyoxyethylene ether sodium sulfate; and (b) the second solution is dropwiseadded into the first solution to obtain the photochromic material. The photochromic material has high color changing efficiency, secondary pollution such as waste water cannot be generated in the preparation process of the photochromic material, and the photochromic material is quite suitable for being applied to the fields of decoration materials, information storing materials, laminated glass and the like.

The invention discloses a preparation method of an ITO / WO3 nano composite electrochromic film having a nano mosaic structure. The preparation method comprises the following steps: (1) dissolving prepared ITO nanocrystals in a nonpolar organic solvent to obtain a nanocrystal solution; (2) adding a polar solvent DMF and a ligand exchanger nitronium tetrafluoroborate into the nanocrystal solution, and performing standing or low-speed centrifugal treatment, so that the ITO nanocrystals are transferred into the polar solvent DMF to form an ITO nanocrystal DMF solution; (3) adding a tungsten source precursor into the ITO nanocrystal DMF solution to form a composite solution; (4) adding ethanol into the composite solution to regulate the viscosity and surface tension; (5) coating the solution obtained in the step (4) on a substrate through a spin coating method, a pulling method or a spray coating method to form a wet film; and (6) annealing the wet film in air to obtain the WO3 film. The invention also discloses the ITO / WO3 nano composite electrochromic film prepared through the above method. The preparation method disclosed by the invention is simple and low in cost, thereby being suitable for industrial production.

The invention relates to a microdefect-induced electrochromic intelligent glass composite film group and a preparation method thereof. The microdefect-induced electrochromic intelligent glass composite film group is characterized in that a WO3 layer, an electrolyte layer, a NiO layer and an electrode layer are sequentially arranged on an FTO or ITO surface of an FTO or ITO conductive glass substrate, wherein SiO2 nano microspheres are embedded in the WO3 layer and the NiO layer, the electrolyte layer is a Li < x > Ga < y > O or Li < x > Nb < y > O layer, and the electrode layer is an ITO layer. The beneficial effects of the invention are that: SiO2 nano particles are embedded in the color-changing layer to serve as micro defects; the micro-defect nanospheres and the color-changing layer can form interface defects to promote induced aggregation of ions at a micro-defect interface in the electrochromism process, so that the purpose of improving the color-changing efficiency of the film is achieved, including accelerating the coloring time, increasing the light modulation amplitude, improving the color-changing uniformity and the like. According to the method for preparing the ITO electrode layer through normal-temperature sputtering, the ITO thin film is prepared through normal-temperature sputtering, the performance of the thin film is guaranteed, and meanwhile possible influences of heating on a film system color changing layer and an electrolyte layer are avoided.

The invention discloses a novel antibiosis exterior wall high solid emulsion paint, which comprises the following ingredients: 10-20 parts of glycol, 1-3 parts of phosphatidylcholine bilayer, 10-20 parts of stearamide, 2-6 parts of dimethicone, 1-3 parts of sodium benzoate, 200-300 parts of ultrafine TiO2, 100-200 parts of ultrafine SiO2, 100-200 parts of light calcium, 50-60 parts of barium sulfate, 400-500 parts of pure propanal emulsion, 10-20 parts of ester alcohol-12, 2-6 parts of ethoxylated alky-sodium sulfide, 3-5 parts of ammoniacal liquor, 2-5 parts of naphthopyrans and 100-200 parts of water. The invention also discloses a preparation method of the novel antibiosis exterior wall high solid emulsion paint. The novel antibiosis exterior wall high solid emulsion paint has the advantages of strong antibiosis capability, high color change efficiency and simple preparation technology.

The invention relates to the technical field of glass products, and particularly discloses an intelligent dynamic dimming film and a preparation method and application thereof. The intelligent dynamic dimming film is prepared from the following raw materials in parts by weight: 50-70 parts of carrier resin, 20-30 parts of electrochromic filler, 20-30 parts of modified lithium-based bentonite, 12-20 parts of carbon nanotubes and 8-16 parts of a coupling agent. The color changing response time of the intelligent dynamic light adjusting film is shortened, and the color changing efficiency of the intelligent dynamic light adjusting film is improved.

The invention discloses a preparation method of a tungsten oxide / ammonium molybdate composite film for electrochromism. The method comprises the following steps: firstly, preparing a tungsten oxide film by adopting an optimized hydrothermal method; then depositing ammonium molybdate nanoparticles on the tungsten oxide thin film by adopting an electro-deposition method; and finally obtaining the tungsten oxide / ammonium molybdate composite film material. According to the prepared composite film, the electrochromism performance of tungsten oxide is improved, and the electrochromism efficiency is improved; the preparation method is simple and easy to operate and low in overall cost.

The invention relates to the micro nano printing technology field and especially relates to a manufacturing method of an externally-convex transparent conductive film. The method comprises the following steps of manufacturing a base material; directly filling a conductive material in a uv structure groove through a micro-nano printing mode; transferring the conductive material in the groove to a surface of a transparent base material to form a transparent conductive film through static electricity and viscosity of a uv glue in an uv transfer printing mode; coating a uv resin, preparing a pet optical bare material or other optical base materials after one embedded transparent conductive film is manufactured; coating the uv resin on the pet optical bare material or the other optical base materials or the embedded conductive film; and laminating the two materials in a same-size ratio manner, and then carrying out roller impressing. In the invention, advantages of a small resistance and strong conductivity are achieved, a conductive layer is directly based on an optical material without interference of other media, simultaneously a phenomenon that a waste liquid in yellow photoetchingpollutes an environment is avoided, pollution to the environment is prevented, production cost is reduced, and losses of a source material are reduced.

The invention discloses an intelligent temperature-control adhesive tape, comprising an adhesive tape base body, and an adhesive layer is coated on the adhesive tape base; the adhesive layer comprises the following raw materials in parts by weight: 40-50 parts of epoxy resin, 10-20 parts of cross-linking modification liquid parts, 5-10 parts of modified heat-sensitive material, 3-6 parts of polyester polyol, 1-5 parts of polyethylene glycol, and 1-2 parts of rare earth liquid. The intelligent temperature control tape of the invention adopts epoxy resin as the matrix, and prepares an adhesive layer by cooperating with raw materials such as cross-linking modification liquid and modified heat-sensitive material. The addition of rare earth liquid has the effect of activating raw materials and enhancing the reaction force between raw materials. , and then plasma treatment is performed on the tape substrate, so that the microstructure activity changes, and the bonding strength between the adhesive layer and the tape substrate is improved.

The invention discloses a preparation method of an ITO / WO3 nano composite electrochromic film having a nano mosaic structure. The preparation method comprises the following steps: (1) dissolving prepared ITO nanocrystals in a nonpolar organic solvent to obtain a nanocrystal solution; (2) adding a polar solvent DMF and a ligand exchanger nitronium tetrafluoroborate into the nanocrystal solution, and performing standing or low-speed centrifugal treatment, so that the ITO nanocrystals are transferred into the polar solvent DMF to form an ITO nanocrystal DMF solution; (3) adding a tungsten source precursor into the ITO nanocrystal DMF solution to form a composite solution; (4) adding ethanol into the composite solution to regulate the viscosity and surface tension; (5) coating the solution obtained in the step (4) on a substrate through a spin coating method, a pulling method or a spray coating method to form a wet film; and (6) annealing the wet film in air to obtain the WO3 film. The invention also discloses the ITO / WO3 nano composite electrochromic film prepared through the above method. The preparation method disclosed by the invention is simple and low in cost, thereby being suitable for industrial production.

The invention discloses a W18O49 / WO3 composite film with electrochromic property; a WO3 layer and a W18O49 layer are sequentially deposited on transparent conductive glass from bottom to top. The invention discloses a preparation method of the composite film. The method comprises the following steps: (1) depositing tungsten oxide on the surface of clean transparent conductive glass by using directcurrent (DC) reactive sputtering method, and annealing to obtain the WO3 layer; (2) placing a precursor solution in a reaction kettle, and placing the transparent conductive glass, deposited with theWO3 layer, in the reaction kettle, wherein the WO3 layer of the transparent conductive glass is 0-3mm higher than the liquid level; (3) after the reaction kettle reacts at a preset temperature for apredetermined time, taking out the reaction kettle to obtain the transparent conductive glass having the W18O49 / WO3 composite film. The dense WO3 makes a great contribution to the service cycle stability of the composite film and provides a transition for realization of the WO3 nanostructure morphology with a larger specific surface area, so that the composite film with a higher color changing efficiency is formed.

The invention discloses an electrochromic device. The device comprises a conductive substrate (1), and an electrochromic layer (2), an ionic conducting layer (3), an insulating reflection layer (4) and a counter electrode layer (5) which are deposited on the substrate in turn from bottom to top. Due to various tests, bias voltage which is needed to be applied to the electrochromic device with a single substrate structure is low, so that energy is saved, and the device is high in electrochromic property, bright in color, high in response speed and long in service life. The electrochromic device with the structure is simple in production process and low in cost, can be applied to monochromatic display devices such as subtitle billboards, traffic lights and the like, can obtain different color changes through different electrochromic materials, and is expected to be applied to high-contrast unbiased-view displays. The structure and the preparation technology have great development potential and good application prospects.

The invention discloses polytungstate-hydrotalcite composite photochromic ultrathin film and a preparation method thereof and belongs to the technical field of inorganic composite photochromic materials. The preparation method includes the steps of preparing hydrotalcite stripped with formamide solvent; preparing polytungstate-superpolymer complex solution; and alternately assembling processed substrates with positive charge in the two solutions to obtain the polytungstate-hydrotalcite composite photochromic ultrathin film. The polytungstate-hydrotalcite composite photochromic ultrathin film is fine in photochromism, short in response time, fine in reversibility and high in chromic amplitude, and both chromic strength and thickness of the film can be precisely controlled by changing assembly times.

The invention discloses a preparation method of an efficient color-changing silk-screen printing molybdenum-doped tungsten oxide nano-structure electrochromic film. According to the technical scheme,the method is characterized by comprising the following steps: dissolving tungstic acid in hydrogen peroxide, carrying out oil bath heating and stirring until a clear solution is obtained, adding molybdenum oxide, ethylene glycol and deionized water into the clear solution; then heating an oil bath pot, performing reflux condensation to obtain molybdenum-doped tungsten oxide nano sol, and outperforming centrifugation and washing the sol for later use; dissolving ethyl cellulose in ethanol at room temperature, stirring the mixture to obtain clear and transparent sol, adding terpilenol and the molybdenum-doped tungsten oxide nano sol prepared in the previous step into the sol, and carrying out rotary evaporation on an organic solvent to obtain molybdenum-doped tungsten oxide nano slurry; uniformly coating the molybdenum-doped tungsten oxide nano slurry on an ITO or FTO conductive glass substrate by adopting a silk-screen printing or blade coating method, then calcining the substrate byusing a muffle furnace and naturally cooling the substrate to obtain the molybdenum-doped tungsten oxide nano-structure electrochromic film.

The invention relates to a nanometer complex phase photochromic material and its preparation method. The material comprises polyurethane and a core-shell structured WO3, ZnO and ZnS nano-material. Specifically, the inner core of the nano-material is WO3, ZnO or ZnS nanoparticles with a particle size of 10-50nm. The shell of the nano-material is a surface dressing agent or also called surface modifier, and has thickness of 3-10nm. The nano-material accounts for 0.5%-6% of the total weight of the nanometer complex phase photochromic material. The photochromic material provided in the invention not only changes color under ultraviolet light radiation, but also can change color under visible light, and the color change process has the advantages of short color change time, high response sensitivity, long cycle life, abundant color change and the like.

The invention discloses a preparation method of an Al2O3 / WO3 nano composite electrochromic film having a mosaic structure. The preparation method comprises the following steps: 1) dissolving Al2O3 nanoparticle powder in water through ultrasonic dispersion to form an Al2O3 nanoparticle water solution; 2) adding ammonium metatungstate into the Al2O3 nanoparticle water solution, performing ultrasonic treatment to form a precursor composite solution; 3) adding ethanol and polyethyleneglycol into the precursor composite solution, and performing ultrasonic treatment to regulate the viscosity and surface tension of the solution; 4) preparing a wet film on a conductive substrate through a spin coating method or a pulling method or a spray coating method; and 5) performing heat treatment on the wet film in air to obtain the Al2O3 / WO3 nano composite electrochromic film. The invention also discloses the Al2O3 / WO3 nano composite electrochromic film prepared through the above method. The preparation method disclosed by the invention is simple, can easily realize film forming on various substrates of different shapes, is low in material consumption and is low in cost, thereby being suitable for industrial production.

The invention belongs to the field of materials, and in particular relates to a photochromic material and its application. The material is prepared according to the following method: a) mixing tungsten and / or molybdenum source compounds, a surfactant and a solvent to obtain a first solution; A surfactant is mixed with an acid solution to obtain a second solution; the surfactant is selected from lignosulfonate, heavy alkylbenzenesulfonate, alkylsulfonate, cetyltrimethylammonium bromide , sodium dodecylbenzene sulfonate, polyvinylpyrrolidone, polyvinyl alcohol, disodium edetate, lauroyl glutamic acid, sodium octadecyl sulfate and sodium fatty alcohol polyoxyethylene ether sulfate one or more; b) adding the second solution dropwise to the first solution to obtain a photochromic material. The photochromic material provided by the invention has high discoloration efficiency, and the material will not produce secondary pollution such as waste water during the preparation process, and is very suitable for application in the fields of decoration materials, information storage materials, laminated glass and the like.

The invention discloses a preparation method of a low-energy-consumption screen-printed molybdenum-doped tungsten oxide nano-structure electrochromic film. According to the technical scheme, the method is characterized by comprising the following steps of: dissolving tungstic acid in hydrogen peroxide, performing oil bath heating and stirring until a clear solution is obtained, adding molybdenum oxide, ethylene glycol and deionized water into the clear solution, heating an oil bath pot, conducting reflux condensation to obtain a molybdenum-doped tungsten oxide nano sol, and conducting centrifugation and washing for standby use; dissolving ethyl cellulose in ethanol at room temperature, performing stirring to obtain a clear and transparent sol, adding terpilenol and the molybdenum-doped tungsten oxide nano sol prepared in the previous step into the sol, and carrying out rotary evaporation of an organic solvent to obtain a molybdenum-doped tungsten oxide nano slurry; and uniformly attaching the molybdenum-doped tungsten oxide nano slurry to an ITO or FTO conductive glass substrate by adopting a silk-screen printing or blade coating method, conducting calcining by using a muffle furnace, and performing natural cooling to obtain the low-energy-consumption screen-printed molybdenum-doped tungsten oxide nano-structure electrochromic film.