223results about "Thermosensitive paints" patented technology

The invention relates to the technical field of metal surface protection, and discloses a corrosion-resistant self-repairing metal fastener and a preparation method thereof.The corrosion-resistant self-repairing metal fastener comprises a zinc alloy matrix, a nanometer passivation layer, a slow-release corrosion-resistant layer and a self-repairing functional layer, and the nanometer passivation layer, the slow-release corrosion-resistant layer and the self-repairing functional layer sequentially wrap the zinc alloy matrix; the zinc alloy matrix consists of Al, Cu, Mg, Ce and Zn; the nano passivation layer adopts zinc phosphate / silane composite sol to construct a Si-O-P covalent bond network, and plasma is combined to graft epoxy groups to enhance the interface bonding strength; the slow-release anti-corrosion layer is used for loading a pH response type benzotriazole derivative through gradient aperture mesoporous silica, so that the dynamic controlled release of a corrosion inhibitor is realized; the self-repairing functional layer adopts a synergistic effect of a mechanical triggering type sulfydryl siloxane microcapsule and a pH triggering type EDTA chelating agent microcapsule to form a physical plugging-chemical passivation dual-mode repairing mechanism. Through four-stage cooperation of matrix modification, interface strengthening, slow-release regulation and control and intelligent repair, the corrosion resistance of the corrosion-resistant self-repairing metal fastener in a complex environment is remarkably enhanced.

The invention relates to the technical field of thermochromic materials, and discloses a thermochromic phase change energy storage microcapsule as well as a preparation method and application thereof. The thermochromic phase change energy storage microcapsule comprises the following preparation raw materials: a core material, a Pickering emulsion template and a wall material, the core material comprises the following components: a leuco agent, a color developing agent and a phase change material; the stable particles of the Pickering emulsion template comprise cellulose nanocrystals; the wall material comprises a resin prepolymer. According to the thermochromic phase change energy storage microcapsule, the cellulose nanocrystals serve as Pickering emulsion stable particles, raw materials are easy to obtain, and the thermochromic phase change energy storage microcapsule is good in stability, good in coating effect, environmentally friendly, free of pollution, sensitive in temperature response, reversible in color change, wide in color change and energy storage temperature interval, good in thermal stability of materials and good in energy storage performance. The preparation method of the material is simple in steps and easy to operate, large-scale production is easy to realize, and the thickness of the microcapsule shell layer can be changed by changing the adding amount of the resin prepolymer.

The invention belongs to the technical field of super-hydrophobic coatings, and particularly relates to a thermochromic photo-thermal super-hydrophobic coating and a preparation method and application thereof. The thermochromic photo-thermal super-hydrophobic coating sequentially comprises a photo-thermal epoxy bottom layer, a thermochromic epoxy middle layer and a super-hydrophobic surface layer from bottom to top in the thickness direction. Wherein phase change microcapsules for packaging phase change materials are distributed in the photo-thermal epoxy bottom layer, and the surfaces of the phase change microcapsules are modified with polydopamine layers and MXene layers in a layer-by-layer self-assembly mode; thermochromic microcapsules are distributed in the thermochromic epoxy middle layer; the super-hydrophobic surface layer is of a micro / nano structure formed by a silane derivative. Through the multifunctional design of integrating photothermal conversion, phase change and thermochromism mechanisms, all-weather ice resistance / ice removal is achieved, the energy utilization efficiency is optimized through an intelligent temperature control mechanism, and a sustainable solution is provided for surface ice prevention in an extreme environment.

A doped pigment for application to an object can be used for measurement of thermal history of the object. In addition, a paint comprising a doped pigment and a doped binder, wherein the pigment and the binder have luminescent profiles which provide for resolution over first and second, different temperature ranges can be used for measurement of thermal history of the object. The pigment can be fabricated by a method which comprises the steps of gelling host precursors in a solvent to form a pigment gel; drying the pigment gel; and calcining the dried pigment gel; and the paint can be fabricated by fabricating a pigment by the above-described method; blending the pigment into water; and blending the blended pigment into a binder.

A composition includes an underfill comprising a polymer having monomer units with substituted Diels-Alder moieties and ester moieties. A first process includes obtaining an underfill comprising a polymer having monomer units with substituted Diels-Alder moieties and ester moieties. A second process includes providing a mixture that includes a curing agent and a monomer comprising substituted Diels-Alder moieties and ester moieties. The second process also includes curing the mixture to form the underfill. A third process includes providing a semiconductor device that includes the underfill. A semiconductor device includes the underfill.

The invention discloses a water-based single-layer self-adaptive thermochromic radiation refrigeration coating and a preparation method thereof. The preparation method comprises the following steps: preparing radiation refrigeration coating dispersion liquid; the radiation refrigeration coating dispersion liquid comprises the following components in parts by mass: 30-40 parts of spherical zirconium dioxide powder, 20-30 parts of deionized water, 25-35 parts of a water-based emulsion, 1.5-3 parts of a wetting dispersant and 7-9 parts of an auxiliary agent, preparing a thermochromic coating dispersion liquid; the thermochromic dispersion liquid comprises 15-25 parts of thermochromic capsules, 27-37 parts of deionized water, 2-3 parts of an ultraviolet light absorber, 35-42 parts of a water-based emulsion, 1.5-3 parts of a wetting dispersant and 7-9 parts of an auxiliary agent; the radiation refrigeration coating dispersion liquid and the thermochromic coating dispersion liquid are mixed according to the mass ratio of 1: 1-4: 1 and stirred to form the self-adaptive thermochromic radiation refrigeration coating. The purposes of self-adaptive radiation refrigeration and heat preservation can be achieved by sensing the temperature change of the external environment to change color.

[Problems] To provide a reversibly thermochromic composition having excellent contrast between a colored state and a decolored state, and excellent light resistance, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition. [Solution] Disclosed is a reversibly thermochromic composition including: (a) an electron-donating color-developing organic compound; (b) a combination of a compound having a specific structure as an electron-accepting compound; and (c) a reaction medium which reversibly induces an electron transfer reaction between the component (a) and the component (b) in a specific temperature range, and a reversibly thermochromic microcapsule pigment encapsulating the reversibly thermochromic composition.

Self-limiting electrospray compositions including a non-charge-dissipative component and / or a charge-dissipative component. Self-limiting electrospray composition including a plurality of charge-dissipative components and excluding a non-charge-dissipative component. Methods for forming layers of self-limiting thickness. Methods for determining a conductivity of a material. Methods for repairing a flaw in a layer on a surface of an object.

The invention belongs to the technical field of graphene, and particularly relates to graphene leather capable of realizing temperature-sensitive color development and a preparation method of the graphene leather. As the graphene heating functional layer adopts the high-thixotropic silver paste, the printed circuit pattern is clear in edge, uniform in thickness and extremely high in consistency with the designed pattern; and a clear interface is formed between a silver paste circuit and leather fibers, and improper penetration is avoided. And the circuit resistance value consistency is excellent (the deviation is controlled within + / -5%), so that rapid, uniform and stable planar heating can be realized after the graphene heating layer is connected, and the local overheating hidden danger is perfectly eliminated. According to the present invention, the natural texture and the soft touch feeling of the leather are maintained while the efficient and safe heating performance with the visual color developing function is achieved.

The invention discloses a hydrophobic thermochromic nano core-shell structure coating and a preparation method and application thereof.The preparation method of the hydrophobic thermochromic nano core-shell structure coating comprises the steps that trimethoxysilane and deionized water are mixed and stirred, and a stock solution is prepared; adding the tungsten-doped vanadium dioxide nanoparticles into an alcohol-water mixed solution of deionized water and absolute ethyl alcohol, and stirring to prepare a vanadium dioxide solution; adding the stock solution and the vanadium dioxide supernatant into deionized water, adding an ammonia water solution, carrying out ultrasonic treatment, and adding acetone to terminate the reaction; centrifuging to obtain a core-shell nanoparticle solution sample; adding waterborne polyurethane into the sample, stirring, spin-coating and drying to obtain a color-changing coating; according to the coating, material oxidation is avoided by adopting a VO2 coated SiO2 core-shell structure, so that the intelligent window has thermochromic performance and hydrophobic performance at the same time, the heat transfer coefficient is increased, and a new thought is provided for promoting development of a spacecraft heat management technology.

The invention relates to the technical field of high-temperature-resistant coatings, in particular to a geopolymer-based reversible color-changing high-temperature-resistant material as well as preparation and application thereof. The geopolymer-based reversible color-changing high-temperature-resistant material provided by the invention comprises the following components in parts by weight: 60 parts of metakaolin, 60 parts of an alkali activator, 30-150 parts of BiVO4 and 30 parts of water, the invention aims to provide an environment-friendly high-temperature-resistant inorganic reversible thermochromic coating by taking a geopolymer as a base material and taking BiVO4 as a pigment filler. A coating further prepared from the geopolymer-based reversible color-changing high-temperature-resistant material provided by the invention is crack-free, has excellent water resistance and wear resistance, is environment-friendly and non-toxic, does not decompose at high temperature, and has excellent reversible thermochromic property.

This invention discloses a method for preparing a thermochromic composite coating with adaptive conductivity, comprising the following steps: The thermochromic material includes a base resin, thermochromic mixed pigments, fillers, and a solvent; the base resin, pigments, fillers, and solvent are mixed and stirred evenly to form a color paste; the color paste is then transferred to a high-speed ball mill for grinding and dispersion for 2 hours to obtain a thermochromic coating; the thermochromic coating is microencapsulated; the microencapsulated thermochromic coating and a nonlinear conductive filler are mixed and ball-milled; molten epoxy resin is added and stirred evenly; a curing agent and a diluent are added for dilution, and the mixture is thoroughly stirred to obtain a final mixture; the mixture is sprayed or brushed onto the surface of an insulating component to form a thermochromic composite coating with adaptive conductivity. The preparation method proposed in this invention is simple, feasible, and low-cost, and has broad application prospects.

The invention discloses an industrial packaging coating integrating anti-counterfeiting, antibacterial and pathogen detection functions and a preparation method thereof, and relates to the technical field of industrial packaging coatings. The coating is prepared from modified polyurethane acrylate, ethyoxyl ethyoxyl ethyl acrylate, 1, 6-hexanediol diacrylate, hydroxyethyl methylacrylate, trimethylolpropane triacrylate, epsilon-polylysine, carbon quantum dot-microencapsulated spiropyrane, a water-based flatting agent, 2, 4, 6-trimethyl-1, 3-pentanediol diacrylate, a water-based curing agent, a defoaming agent, a defoaming agent and a solvent. The cleaning agent is prepared from 2, 4, 6-trimethylbenzoyl diphenyl phosphine oxide, a dispersing agent, lauryl sodium sulfate, pathogen microcapsules and ethyl acetate. The three functions of anti-counterfeiting, antibiosis and pathogen detection are integrated into a single coating, the limitation that a traditional packaging material is single in function is broken through, the anti-counterfeiting reliability is improved, no harmful substance is migrated out, and efficient pathogen screening is achieved; safety standards are met, harmful substance migration is avoided, and the base material is matched with various base materials such as films and fibers and is mechanically strengthened.

The invention discloses an electric arc indication composition suitable for an insulator silicone rubber surface and a preparation method thereof, and belongs to the technical field of functional materials of electrical equipment. The composition comprises the following components in percentage by mass: 0.1-20% of main functional particles, 5-50% of a film-forming material, 60-80% of a solvent and 0-20% of an auxiliary agent, wherein the main functional particles are colored particles coated with Co3 (PO4) 2.8 H2O and ester materials or a combination of the Co3 (PO4) 2.8 H2O and the ester materials; according to the electric arc indicating composition, through the swelling effect of the solvent on the silicon rubber substrate and the synergistic reaction of all the components, the adhesive force and durability of the electric arc indicating composition on the low-surface-energy silicon rubber of the insulator are remarkably improved, and when an electric arc occurs on the surface of the insulator, generated local high temperature triggers the thermochromic combined material to generate irreversible color change; therefore, the position of arc generation can be recorded and indicated visually and permanently.

The invention relates to an intelligent building coating capable of preparing a film with temperature discoloration response and radiation refrigeration functions and a preparation method of the intelligent building coating. Intelligent discoloration of the appearance of a building, visual judgment of the temperature of the building and reduction of the refrigeration energy consumption of the building are achieved. The coating disclosed by the invention is prepared from the following components in percentage by mass: 5 to 15 weight percent of montmorillonite, 5 to 15 weight percent of silicon oxide microspheres, 5 to 15 weight percent of silver tetraiodo-mercurate, 10 to 30 weight percent of polymer with transparent visible spectrum or high infrared emission spectrum emission, 0 to 5 weight percent of functional additive and 30 to 50 weight percent of solvent. The reflectivity of the radiation refrigeration function layer in a solar spectrum waveband area is larger than or equal to 0.87, the emissivity of the radiation refrigeration function layer in the 8-12-micron waveband of an atmospheric window is larger than or equal to 0.81, the refrigeration efficiency under the direct solar radiation condition is larger than or equal to 80 W / m < 2 >, and the film is light yellow and reddish brown at the temperature of 50 DEG C or below so that visual judgment of the building temperature can be achieved. The preparation method provided by the invention is simple in process, the refrigeration energy consumption of the building can be effectively reduced, the building is endowed with good aesthetic characteristics, and the energy efficiency and living suitability of the building can be improved.

A filling material (151) for artificial ganoderma, comprising a plurality of particles (141) at least partially coated by a PCM shell layer (143) containing at least one PCM material, and a thermally conductive shell layer (145) formed on the PCM shell layer (143).

A thermochromic material comprising vanadium dioxide (VO2) nanoparticles dispersed on surfaces of larger scaffolding particles such as amorphous silicon dioxide (SiO2). The SiO2 particles prevent the vanadium dioxide nanoparticles, which are typically less than approximately 40 nm in size, from sintering into larger particles, thus giving the material advantageous properties. A base added to the vanadium precursor solution functionalizes the scaffolding particles. The size of the vanadium dioxide nanoparticles can be changed by changing the size of the scaffolding particles. The material can be dispersed in a coating, film, ink, plastic, or polymer.

The present disclosure relates to a detergent-coating agent composition comprising: a Group IVB metal in an amount of from 50 ppm to 8,000 ppm based on the total weight of the detergent-coating agent composition, and a Group IVB metal in an amount of from 50 ppm to 8,000 ppm based on the total weight of the detergent-coating agent composition; an electropositive metal; a builder comprising a phosphonate and / or a sugar alcohol; and a detergent-coating agent surfactant in an amount of from 50 ppm to 20,000 ppm based on the total weight of the detergent-coating agent composition. The present disclosure also relates to systems and methods for treating a substrate comprising any of the detergent-coating agent compositions disclosed herein and an electrodepositable coating composition. The present disclosure also relates to substrates treated by any of the detergent-coating agent compositions, systems and / or methods disclosed herein.

The present invention provides a reversible thermochromic composition which exhibits black color upon coloration and colorless color upon discoloration, and has excellent light resistance, by using a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition. The means for solving the problem is a reversible thermochromic composition comprising: (a) a fluoran derivative having a specific structure as an electron-donating chromogenic organic compound, (b) a compound having a specific structure as an electron-accepting compound, and (c) a reaction medium which allows the electron transfer reaction between the (a) component and the (b) component to occur reversibly in a specific temperature range, and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition.

The invention relates to the technical field of reversible color-changing coatings, in particular to a reversible color-changing coating for temperature self-detection as well as a preparation method and application of the reversible color-changing coating. The reversible color-changing coating comprises the following raw materials: a reversible color-changing material, a room-temperature curing insulating coating, a heat-conducting filler and a dispersing agent, the reversible color-changing material comprises a long-chain alkyl alcohol solvent, a leuco agent and a gallic acid alkanol ester color developing agent. When the reversible color-changing coating is used, the reversible color-changing coating can be obtained only by coating the lap joint surface of the transformer bushing and curing at room temperature. The reversible color-changing coating disclosed by the invention is good in insulating property, excellent in heat-conducting property, convenient to use and remarkable in color change, and low-temperature light color and high-temperature dark color can be used for temperature self-detection of the lap joint surface of the transformer bushing of the transformer substation, so that inspection of inspection personnel is facilitated.

A label includes a flexible substrate comprising a first side and a second side. The first side is an adhesive, the second side is configured to be printed with a first visible mark, and the second side has a second printed, overlapping mark. The overlapping mark is configured to change opacity below a first transition temperature to obscure the visible mark.

The invention relates to the technical field of coatings, in particular to a two-component quick-drying anti-skid self-cleaning road marking coating and a preparation method thereof, and a component A is prepared from the following raw materials in parts by weight: 30-50 parts of waterborne polyurethane dispersion; 5 to 10 parts of light response self-repairing microcapsules; 3 to 8 parts of iron-doped nano titanium dioxide; 8-15 parts of surface modified antiskid particles; 1-3 parts of a multifunctional silane coupling agent; 0.1 to 0.5 part of a pH regulator; 0.2 to 0.6 part of a bio-based defoaming agent; 0.5 to 1.5 parts of an intelligent temperature-sensitive thickening agent; 0.1 to 0.3 part of a broad-spectrum antibacterial agent; 10 to 40 parts of deionized water; the component B is prepared from the following raw materials in parts by weight: 20-40 parts of a water dispersible isocyanate curing agent; 5-15 parts of a hyperbranched polyether modifier; 1 to 3 parts of hydrophobic nano silicon dioxide; 0.5 to 1.5 parts of a light stabilizer; and 40 to 70 parts of deionized water.

The present invention relates to a package (10) for an aerosol product (1), comprising at least one coated surface area (11) and at least one uncoated surface area (12), wherein a coating (13) on the at least one coated surface area (11) of the package (10) is heat-sensitive, and the coating (13) indicates the application of heat by a permanent color change. The present invention also relates to an aerosol product (1) comprising such a package (10), and a method for manufacturing an aerosol product (1) comprising such a package (10) by printing a polymer on a portion of the package by flexographic printing.

The present invention provides a thermosensitive resin, an environmentally friendly thermosensitive plate and a preparation method thereof. The thermosensitive resin provided in the present application is an important binder in the thermosensitive coating forming the thermosensitive layer, namely, a functional film-forming resin, which can improve the water or fountain solution developing ability of the plate and the ability to resist the erosion of chemicals in the ink, so as to realize the image layer having a thermosetting urethane bond network structure, which can increase the wear resistance of the plate coating and improve the printing resistance of the plate. The environmentally friendly thermosensitive plate provided in the present application is hydrophilic and can realize water development or fountain solution development. It is a green and environmentally friendly thermosensitive plate. Through the thermosensitive resin, crosslinking agent and thermochromic dye with special structure, the sensitivity of the thermosensitive plate is improved, the dot restoration accuracy of the plate is improved; the printing resistance of the plate is improved, and the color restoration uniformity of the image layer is improved by improving the exposure tolerance; the developability and printing resistance of the plate are improved; the platemaking contrast of the plate is improved, and the problem of automatic plate recognition by computer is solved.

The present invention addresses the problem of providing: a reversibly thermochromic composition which has excellent contrast between a color-developing state and a color-decoloring state and also has excellent light resistance; and a reversibly thermochromic microcapsule pigment which contains the reversibly thermochromic composition. The solution is a reversible thermochromic composition and a reversible thermochromic microcapsule pigment containing the reversible thermochromic composition. The reversible thermochromic composition comprises: (a) an electron-donating color-developing organic compound; (b) a combination of compounds having a specific structure as an electron-accepting compound; and (c) a reaction medium that reversibly causes an electron transfer reaction between the component (a) and the component (b) to occur in a specific temperature range.

The invention belongs to the technical field of composite materials, and discloses a temperature-sensitive color-changing food-grade composite material as well as a preparation method and application thereof. The food-grade composite material comprises a metal foil and a modified HDPE film attached to one side or two sides of the metal foil. The modified high-density polyethylene, the temperature-variable microcapsule toner, the titanate coupling agent, the stearate and the nano aluminum oxide are used as main raw materials of the modified HDPE film, and through the synergistic effect of the components, the temperature-variable microcapsule toner is dispersed and stabilized, the compatibility of the temperature-variable microcapsule toner and a resin matrix is improved, and the thermal conductivity of the modified HDPE film is improved; the interface compatibility of the modified HDPE film and the metal foil and the color development performance of the toner are comprehensively improved, so that the prepared food-grade composite material film layer is high in peel strength, stable in color development and high in responsivity. The preparation method provided by the invention is high in processing adaptability and suitable for large-scale industrial production.

The invention is directed to a membrane (1) comprising a waterproof layer (2) having opposed top and bottom surfaces and a weld quality indicator (3) 5 deposited on one of the opposed surfaces of the waterproof layer (2), wherein the weld quality indicator (3) comprises one or more discontinuous lines running substantially parallel and adjacent to an edge (e1, e2) of the waterproof layer (2), wherein the discontinuous line(s) is / are composed of a series of spaced apart areas (on the surface of the waterproof layer) covered 10 with an ink comprising a thermochromic system.

The present invention belongs to the technical field of coatings, and discloses a high-precision temperature warning coating material and a preparation method thereof. The coating material uses a composite resin as a paint base, and adds a diatomite-modified carboxymethyl cellulose / polyacrylic acid composite hydrogel loaded with a temperature-sensitive color-changing active component. The temperature-sensitive color-changing active component is a PdCl2 / MoCl5 dual-doped Ag3InCl6 metal complex, and metal doping improves the activity of the complex; the diatomite-modified carboxymethyl cellulose / polyacrylic acid composite hydrogel is used as a carrier to load the temperature-sensitive color-changing active component, and the modified hydrogel has better adsorption and sensing performance, improves the compatibility of the active component with the paint base, and is more sensitive to color change; polyisobutylene, alkyd resin, and polyester resin are used as a paint base to improve the wear resistance, chemical corrosion resistance, and weather resistance of the coating. The coating material prepared by the present invention has high temperature sensitivity, simple preparation process, and is environmentally friendly.

The present invention relates to a coating of the surface of a household article comprising a decoration (a) comprising a thermochromic pigment compound of formula BiOA1-xBx (I) where: - A and B are chosen from the group consisting of iodine, fluorine, chlorine and bromine, - A and B are different from each other, and - x is from 0 to 1.