127results about "Thermosensitive paints" patented technology

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 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 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.

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.

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 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 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.

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.

Provided is a cover for an inductive heating cooker including a top plate provided with at least one crater, on which a cooking container is placed, and a working coil arranged on one side of each of the at least one crater of the top plate to inductively heat the cooking container. The cover includes a cover body interposed between the at least one crater of the top plate of the inductive heating cooker and the cooking container, and a high-temperature display part including a thermochromic layer made of thermochromic material and arranged on one side of the cover body, the thermochromic layer changing a color thereof to a first color below a predetermined temperature and to a second color, different from the first color, at at least the predetermined temperature.

This invention relates to an adaptive radiation-cooling coating, comprising, from the inside out, a high-reflectivity primer layer, a thermochromic intermediate layer, and a semi-transparent topcoat layer with ultraviolet (UV) blocking and radiation-cooling functions; the thermochromic intermediate layer is colored below a set temperature value and colorless above the set temperature value. This invention combines the semi-transparent topcoat with UV blocking and radiation-cooling functions, the thermochromic intermediate layer, and the primer, placing the thermochromic intermediate layer between the transparent topcoat and the primer. This allows it to resist high temperatures and UV radiation in the environment. At low temperatures, the thermochromic intermediate layer forms a colored intermediate layer that absorbs solar wavelengths to increase the coating temperature; at high temperatures, the thermochromic intermediate layer becomes transparent, allowing solar wavelengths to pass through and be reflected by the high-reflectivity primer layer, thereby reducing the temperature of the coating system.

The invention discloses a self-adaptive thermochromic anti-icing composite coating suitable for a wood material in an extremely cold region and a preparation method and application of the self-adaptive thermochromic anti-icing composite coating, and belongs to the technical field of wood material surface protection and functional coatings. The problems that an existing functional coating often has out-of-control permeation, weak interface bonding, cracking, peeling and rapid function attenuation on the surface of wood, and icing prevention and temperature regulation and control are difficult to stably achieve for a long time in an extremely cold environment are solved. The composite coating sequentially comprises a permeation curing interface layer, a photo-thermal-electric heating synergistic heat supply layer and a self-adaptive thermochromic super-hydrophobic regulation layer from the surface of a substrate to the top. The method comprises the following steps: 1, preparing the permeation curing interface layer; 2, preparing a photo-thermal-electric heating synergistic heat supply layer; and 3, preparing the self-adaptive thermochromic super-hydrophobic regulation and control layer. According to the application, the anti-icing and de-icing agent is applied to the environment temperature of-30 DEG C to 40 DEG C, and anti-icing, de-icing and temperature regulation and control of a wooden substrate are achieved.

The invention belongs to the technical field of state detection and safety monitoring of power equipment, and particularly relates to a coating material for rapidly positioning a GIL short-circuit point and a preparation method of the coating material. The irreversible thermochromic coating comprises the following raw materials in percentage by weight: 35-45% of resin, 15-30% of monoethanolamine, 10-20% of calcium carbonate, 0.1-5% of PE wax, 0.1-5% of water and 15-25% of irreversible thermochromic microcapsules, the irreversible thermochromic microcapsules comprise a core liquid and a wall material, and the mass ratio of the core liquid to the wall material is 1: (3-4). The coating material provided by the invention can trigger irreversible color change by utilizing local temperature rise of a short-circuit point when a GIL short-circuit fault occurs, so that a permanent developing mark is formed on a pipe gallery shell, the coating material for quickly, intuitively and accurately positioning the short-circuit point is realized, and the coating material has good weather resistance, adhesive force and stability so as to meet the long-term operation and inspection requirements of a GIL system.

This invention relates to the field of thermochromic coating technology, and discloses a method for preparing thermochromic coatings and a window film for their application; comprising the following steps: Step 1: Sodium dodecyl sulfonate and polyvinylpyrrolidone are uniformly mixed at a mass ratio of 1:(0.3~0.4) to obtain a surfactant; Step 2: Modified polyurethane and acrylic resin are added to a solvent, heated and stirred at 50~60℃ for 1~2 hours, and surfactant, pigment, thermochromic microcapsules, defoamer, and plasticizer are added sequentially, and mixing is continued for 40~60 minutes to obtain a thermochromic coating; the polymer material is melt-extruded, biaxially stretched, shaped and cooled to obtain a base film; the pressure is set to 0.8~1N / cm. 2 At a speed of 1~2m / min, the thermochromic coating is evenly applied to the base film and dried at 60~70℃ to produce a smart window film, which can effectively reduce energy consumption.

The invention belongs to the technical field of powder coatings, and particularly relates to a temperature-sensitive color-changing powder coating and a preparation method thereof. The invention aims to solve the problems that the color changing function of the existing temperature-sensitive powder coating is difficult to maintain and the white fog phenomenon exists. The preparation method comprises the following steps: blending a coating precursor, a low-temperature temperature-sensitive microcapsule and a high-temperature temperature-sensitive microcapsule to obtain a coating matrix; performing electrostatic spraying on the coating substrate to obtain a coating precursor; carrying out melt leveling treatment on the coating precursor, and then carrying out low-voltage electrostatic spraying on cured resin to obtain a coating base film; and carrying out curing crosslinking treatment on the coating base film to obtain the temperature-sensitive color-changing powder coating. The prepared temperature-sensitive color-changing powder coating is good in color-changing function durability and capable of effectively inhibiting the rime fog phenomenon.

The application provides a moisture-curing quick-drying type HFG weather-resistant insulating paint and a preparation method and application thereof, and relates to the technical field of paint. The paint comprises the following raw materials: 40-50% end alkoxy high-branched fluorosilicon resin, 0.5-1.0% N-(beta-aminoethyl)-gamma-aminopropyl trimethoxysilane, 3-5% thermochromic microcapsules, 0.02-0.05% graphene, 0.5-1.5% fluorinated boron nitride nanosheet, 5-10% hollow glass microbead, 3-6% fluorinated spherical SiO2, 0.1-0.3% fluorocarbon surfactant, 2-3% defoaming agent, 2-3% leveling agent, and the rest is propyl propionate / dimethyl carbonate azeotrope solvent. The moisture-curing quick-drying type HFG weather-resistant insulating paint can realize surface drying within 3 minutes through a self-spraying tank mode only by relying on ambient air humidity, has good insulating performance, temperature visualization, high environmental protection, high environmental applicability, and is suitable for the scenes of live-line repair of power equipment and non-power-off spraying.

The present disclosure is a body temperature detecting marker for checking body temperature of animals, comprising a display member; a coupling member configured to be capable of being separated from or coupled to the display member; and a color-changing member located between the display member and the coupling member and containing a thermochromic pigment that discolors to a different color or becomes transparent in a predetermined temperature range, wherein the display member is at least partially transparent or translucent so that a color change in the color-changing member is visible.

The invention discloses a temperature-sensitive color-changing intelligent temperature-regulating and heat-insulating coating as well as preparation and application thereof, and belongs to the technical field of heat-insulating materials. The invention relates to a temperature-sensitive color-changing intelligent temperature-adjusting heat-insulating coating, which comprises the following components by mass: 60-80 parts of acrylic acid modified polyurethane resin; 10 to 15 parts of a temperature-sensitive color-changing microcapsule; 6-10 parts of a phase change energy storage microcapsule; 5-8 parts of VO2 (W)-TiO2 composite particles, the particle size of which is 30-80 nm; 0.5 part to 1.0 part of a light stabilizer HALS-770; 1.0 to 2.0 parts of a dispersant sodium dodecyl benzene sulfonate; 0.3 to 0.6 part of a rheological auxiliary agent, namely organic bentonite; and mixing solvents. The cholesteric liquid crystal temperature-sensitive microcapsules, the phase change energy storage microcapsules and the doped VO2 thermal control nanoparticles are compounded and integrated in the same coating system, so that the synergistic temperature control effect of color change indication, phase change buffering and infrared reflection is realized.

The invention relates to the technical field of coating preparation, and discloses a conductive variable-temperature coating and a preparation method thereof.The preparation method comprises the steps that a hysteresis type solvent diffusion field is established, and the diffusion coefficient of a solvent in a microcapsule shell is limited in a non-equilibrium state interval through the steric hindrance effect; constructing a skin-core gradient modulus interface which is soft outside and hard inside, and partially embedding the multi-walled carbon nanotubes into the outer surface of the shell in a viscoelastic state by utilizing radial counter-acting force provided by a glassy-state framework in the shell; injecting deionized water to induce vitrification shrinkage of the surface of the shell, and generating volume shrinkage stress to mechanically occlude and fix the multi-walled carbon nanotubes; according to the preparation method disclosed by the invention, a mechanically-interlocked conductive network is constructed on the surface of the microcapsule through a non-equilibrium state gradient plasticizing and quenching locking process, so that the problems that the microcapsule is easy to damage and the conductive filler is easy to fall off in a traditional blending process are solved.

The invention discloses a building energy-saving colorful coating and a spraying device, the building energy-saving colorful coating comprises a color-changing pigment system, thermal decoloration type reversible thermochromic pigments with different colors are mixed according to different proportions for color matching so as to obtain a color-mixed and colorless color-changing effect, the color-changing pigment system is in a colored state at low temperature, the color-changing pigment system becomes colorless when the temperature rises to a set value, and the color-changing pigment system is in a color-changing state when the temperature rises to a set value; when the temperature is reduced, the original color is recovered; and the base material is used for uniformly developing color and firmly adhering to the surface of a building. According to the invention, a special formula and process are adopted, and various reversible thermochromic pigments are used for complex color blending, so that the coating can reduce the saturation and improve the reflection effect through the heat discoloration property of the reversible thermochromic pigments while ensuring the decoration, and has an excellent energy-saving effect; and meanwhile, the outer wall of the building can form a gradual change effect and form different color effects at different environment temperatures, and the overall attractiveness of the building is further improved.

The invention discloses a metal organosilane thermochromic coating as well as a preparation method and application thereof, and belongs to the technical field of organosilicone and thermochromism. According to the technical scheme, room-temperature vulcanized methyl silicone rubber, imidazole silane and a cross-linking agent are stirred and mixed to be uniform, a cobalt ion alcoholic solution is added for stirring and mixing, then a catalyst is added for uniform mixing, curing is conducted at the room temperature, and the metal organosilane thermochromic coating is obtained. The cobalt ions and the imidazole silane are mixed in a liquid phase to prepare the coating, different color changing effects are generated due to the fact that the coordination state of the cobalt ions and the imidazole silane is influenced by temperature changes, reversible thermochromism can be achieved at the temperature of 40-60 DEG C, and color changing response is rapid. A full-liquid preparation and mixing mode is adopted, a thermochromic material does not need to be additionally prepared and added, and the preparation method is simple, convenient and efficient.

The invention discloses temperature-sensitive fluorescent coating ink based on triplet state-triplet state annihilation up-conversion as well as a preparation method and application of the temperature-sensitive fluorescent coating ink. The ink is composed of a polymer substrate material, silicone rubber polymer nanoparticles loaded with triplet state-triplet state annihilation up-conversion fluorescent dye and a solvent, a temperature-sensitive fluorescent coating is formed on the surface of an electronic component through a dispensing method, a spin coating method, a blade coating method or a spraying method, and a uniform fluorescent film is prepared; exciting the fluorescent film by using laser; a photoluminescence signal is collected through a confocal light path, and spectrum analysis is carried out through a monochromator; the method comprises the following steps: performing micro-area scanning on a fluorescent film on the surface of a measured object by controlling a displacement table or a galvanometer, and capturing spectral information of each pixel point; and according to a pre-calibrated temperature-spectrum relation curve, reconstructing a micro-scale two-dimensional or three-dimensional temperature distribution diagram of the chip in a working state. According to the invention, non-contact and high-resolution real-time temperature imaging of a chip working state microcell is realized, and a key technology is provided for temperature anomaly detection, thermal management optimization and failure analysis of a miniature electronic component.

The invention relates to the technical field of intelligent response materials, in particular to a reversible color-changing pearly-luster thin film material and a preparation method thereof.The thin film material is formed by laminating a bottom layer, a middle layer and a top layer in a cholesteric liquid crystal polymer network layer, the bottom layer contains a right-handed chiral dopant and a functional nano mica sheet, and the basic structure characteristics are given; a photoresponse chiral switch, a thermochromic microcapsule and a conductive nano filler are introduced into the middle layer, so that multiple response functions of light, heat and electricity are realized; the top layer contains a levorotatory chiral dopant, an ultraviolet absorbent and a light stabilizer and provides environmental protection and stability, a structural color is generated through a spiral superstructure formed by molecular self-assembly, and a color changing mechanism is based on continuous change of molecular orientation and screw pitch.

The invention discloses a reversible thermochromic coating and a preparation method thereof, and belongs to the technical field of thermochromic materials, the coating is of a sandwich structure, and the coating sequentially comprises an adhesive layer, an H-SiO2-EPCM functional layer and a protective layer from bottom to top; the H-SiO2-EPCM functional layer is formed by mixing an H-SiO2 photon nano pigment and an organic phase change material; the H-SiO2 photon nano pigment is a silicon dioxide nanosphere with a hollow structure, an amorphous carbon layer exists on the inner wall of a shell layer of the silicon dioxide nanosphere, and a rough and disordered superstructure is arranged on the surface of the shell layer; the organic phase change material is formed by mixing organic fatty acids, and the organic fatty acids comprise lauric acid, myristic acid, palmitic acid and stearic acid. The coating is prepared through spraying, has excellent mechanical and chemical stability and wide substrate adaptability, and has application value in the fields of dynamic anti-counterfeiting, personalized health monitoring, drinking water safety early warning, electronic equipment thermal risk monitoring and the like.