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558 results about "Weather resistance" patented technology

Elastic thermal insulating coating

InactiveCN103342936AEnvironmentally friendly and excellent performanceExcellent thermal insulation effectReflecting/signal paintsWeather resistanceTitanium dioxide
The invention belongs to the technical field of architectural coating and particularly relates to an elastic thermal insulating coating. The elastic thermal insulating coating comprises the following components by weight percent: 40-50% of film forming agent, 10-20% of titanium dioxide, 4-10% of hollow glass bead, 5-7.5% of filler, 3-6% of dispersing agent, 1-3% of wetting agent, 1.6-4.0% of coalescing agent, 0.1-0.2% of cellulose, 0.1-0.5% of thickening agent, 0.2-0.5% of antifoaming agent and the balance of water. According to the technical scheme, all the materials are environment-friendly, and excellent thermal insulating effect and weather resistance are achieved due to the adoption of the hollow glass bead and rutile-type nanometer titanium dioxide. The hollow glass bead coating has a broad market space.
Owner:KUNSHAN DACHUAN COLORANT MATERIAL

Composite board and preparation method and application thereof

This invention discloses a composite panel, its preparation method, and its application, belonging to the field of building panel technology. The composite panel comprises, from the outside to the inside, a decorative layer, an anti-warping reinforcement layer, a foamed core layer, and a balancing layer, with a thermal expansion release structure at the edge. The anti-warping reinforcement layer uses a high-modulus glass fiber mesh to improve the panel's stiffness and suppress bending deformation; the balancing layer and decorative layer form a symmetrical structure to offset bending stress caused by temperature gradients; the thermal expansion release structure allows for micro-displacement of the panel to release thermal stress. This invention, through the synergy of the anti-warping reinforcement layer, the balancing layer, and the thermal expansion release structure, can effectively reduce the warping deformation of exterior wall cladding under thermal cycling conditions, while also possessing advantages such as weather resistance, thermal insulation, lightweight, and environmental friendliness. The preparation process is simple, suitable for large-scale production, and can be widely applied to composite imitation stone exterior wall cladding.
Owner:HUNAN CITY UNIV

Weather-resistant and high-temperature-resistant silicone leather protective film and preparation method thereof

This application relates to the field of protective film materials technology, and discloses a weather-resistant and high-temperature-resistant silicone leather protective film and its preparation method. The weather-resistant and high-temperature-resistant silicone leather protective film of this application comprises a knitted fabric substrate layer and an organosilicon composite layer stacked sequentially from bottom to top; wherein, the raw materials of the organosilicon composite layer include: methyl vinyl silicone rubber, modified fumed silica, hydroxyl silicone oil, hydrogen-containing silicone oil, platinum catalyst, UV stabilizer, flame retardant, and antioxidant; the modified fumed silica is obtained by modifying fumed silica with a composite silane coupling agent, and the specific surface area of ​​the fumed silica before modification is 200~400 m² / g. 2 / g. The preparation method of this application is simple and efficient. Through the steps of substrate pretreatment, mixing of adhesives, composite molding, and post-treatment, the resulting weather-resistant and high-temperature resistant silicone leather protective film has excellent mechanical strength, weather resistance, high-temperature resistance, and flame retardant properties.
Owner:JETAYO TECH CO LTD

A weather-resistant, high-hardness composite anti-corrosion coating and its preparation method

PendingCN122080731AInhibition of germinationImprove gloss retentionAnti-corrosive paintsEpoxy resin coatingsDisulfide bondingBenzoic acid
This invention discloses a weather-resistant, high-hardness composite anti-corrosion coating and its preparation method, belonging to the field of anti-corrosion coating technology. The preparation method includes: firstly, synthesizing an epoxy resin containing dynamic disulfide bonds by reacting dithiodibenzoic acid and epichlorohydrin in an alkaline aqueous phase; secondly, constructing a low surface energy siloxane network using hydroxyl-terminated polydimethylsiloxane and methyltriethoxysilane; subsequently, introducing chlorzoxazone and N-acetyl-p-aminophenol as composite organic corrosion inhibitors, blending them with the resin to obtain a composite base material; finally, adding graphene, carbon nanotubes, and inorganic anti-corrosion fillers, and cross-linking and curing to form a film using a polyamine curing agent. This invention suppresses microcracks through the dynamic stress relief of disulfide bonds, combined with the weather-resistant barrier of the siloxane network, the active interface passivation of the heteroatom corrosion inhibitor, and the three-dimensional synergistic mechanical bonding of carbon-based nanomaterials, achieving a perfect unity of ultra-strong corrosion resistance, excellent weather resistance, and high mechanical hardness in the coating.
Owner:ZENGCHENG BOYA CHEM CO LTD

Ceramization composite process applied to metal substrate

PCT designated stageWO2026129408A1AnodisationMicro arc oxidationWeather resistance
Disclosed in the present invention is a ceramization composite process applied to a metal substrate, comprising the following steps: 1) performing micro-arc oxidation treatment on a metal substrate; and 2) performing post-treatment on the metal substrate obtained in step 1). In the present invention, micro-arc oxidation treatment is performed on the metal substrate, which may result in micro-arc oxidation ceramic films of different colors on the surface of the metal substrate, the colors are uniform, and the appearance is beautiful; and then post-treatment is performed on the metal substrate to form protection for the micro-arc oxidation ceramic films and fill micro-pores of the micro-arc oxidation ceramic films, such that micro-film pores on the surface of the metal substrate undergone the micro-arc oxidation treatment are sealed, thereby greatly improving the stain resistance, weatherability, and surface hardness of the metal substrate, preventing film layer pulverization or cracking after the metal substrate is impacted, and solving the problems of poor stain resistance caused by the presence of micro-pores on surfaces, poor weatherability and insufficient surface hardness caused by open and unsealed film pores, and high hardness and brittleness of micro-arc oxidation films of existing micro-arc oxidation processes.
Owner:SUZHOU FIELD TECHNOLOGY GROUP CO LTD

Composite transparent film and method for manufacturing the same

PendingCN122277955Ahigh transparencyExcellent water vapor barrierPolymer sciencePolyvinyl alcohol
This invention discloses a composite transparent film and its preparation method, relating to the technical field of polymer materials. The preparation method of the composite transparent film includes the following steps: (1) melting and blending vermiculite and fluororubber to obtain fluorinated vermiculite; then mixing the fluorinated vermiculite and mica evenly to obtain composite clay; (2) mixing polyvinyl alcohol solution, composite clay, and SESC lignin evenly to obtain a precursor solution, wherein the mass ratio of polyvinyl alcohol, composite clay, and SESC lignin is 45:45:(8-12); then spreading and drying the precursor solution on a substrate by casting, followed by heat treatment to obtain the composite transparent film. The composite transparent film of this invention possesses excellent water vapor barrier properties, ultraviolet absorption capacity, good transparency, high mechanical strength, and weather resistance.
Owner:THE GBA NAT INST FOR NANOTECHNOLOGY INNOVATION

High-weather-resistant three-color paint and preparation method thereof

This invention provides a high weather-resistant three-color paint and its preparation method. The high weather-resistant three-color paint includes a white primer, a red primer, a blue primer, a topcoat, a clear coat, and a curing agent. Modified silica is added to the white primer, red primer, blue primer, topcoat, and clear coat. The modified silica is obtained by copolymerizing hydroxyl hyperbranched polymer-coated nano-silica, 2,4-dihydroxybenzophenone-grafted cyanuric chloride, and hydroxyl acrylate. This modified silica possesses a three-dimensional cross-linked network structure, which directly enhances the mechanical properties of the paint film. It also incorporates abundant ultraviolet absorbing groups, significantly improving the weather resistance of the paint film. Simultaneously, the large number of active hydroxyl groups it contains enhances the adhesion of the paint film. During the curing process, the isocyanate groups of the curing agent combine with the hydroxyl-containing components in the system to form a highly integrated and dense paint film structure, further improving the mechanical properties, weather resistance, and optimizing acid and alkali resistance of the paint film.
Owner:LIAOCHENG HUARONG PAINT CO LTD

A polyurethane synthetic machine silicon material for wind turbine tower outer wall protection and a preparation method thereof

PendingCN122278206AMeth-Silicon oxide
This invention relates to a polyurethane-modified silicone protective material for the outer wall of wind turbine towers, and discloses a method for preparing the same material. The material is prepared by mixing acrylate-hedged phenol-modified trimethyl silicone oil, isocyanate-modified polyether polyol polyurethane, ultrafine silica, nano-alumina, short-fiber glass, triethylamine, benzoyl peroxide, dioctyl phthalate (DOP), phthalocyanine UV absorbers, dibutyltin diethylene (DDBT), and imidazole antifungal agents in a specific weight ratio. This material exhibits excellent weather resistance, mechanical strength, heat resistance, UV resistance, and antifungal properties, making it particularly suitable for the protection of wind turbine towers. The preparation method ensures the stability and consistency of the material's performance by precisely controlling the proportions of each component and the curing conditions. This material effectively improves the UV resistance, corrosion resistance, weather resistance, and overall durability of wind turbine towers, extending their service life and reducing maintenance costs. This invention provides a high-performance protective material for the outer wall of wind turbine towers, which has significant engineering application value. Especially in environments with long-term high humidity, low temperature, and strong ultraviolet radiation, it can significantly improve the stability and service life of the tower. This polyurethane-modified silicone protective material exhibits excellent protective performance in demanding application environments such as wind turbine towers, and has broad market application prospects.
Owner:BEIJING LEOFLY TECHNOLOGY CO LTD

A cooling setting machine for weather-resistant PVC decorative film and a setting process thereof

PendingCN122323506AWeather resistanceMachine
This invention relates to the field of decorative film cooling and shaping technology, and discloses a cooling and shaping machine and its shaping process for weather-resistant PVC decorative film. The machine includes a machine body with a cooling roller assembly mounted on it. The cooling roller assembly consists of several fixed cooling rollers and movable cooling rollers. A pneumatic drive assembly is provided on the machine body. Each movable cooling roller is equipped with a telescopic drive component arranged vertically. The design of switching between the movable and fixed cooling rollers significantly improves the efficiency of film threading and initial conveying stability. The initial horizontal straight-line arrangement of the equipment minimizes the travel path of the high-temperature film material and ensures a flat and continuous support surface. This effectively avoids sagging, adhesion, or wrinkling problems caused by excessive span in freshly extruded and calendered soft film material, greatly reducing threading difficulty and labor intensity. It also reduces the risk of irreversible deformation of the film material during threading, improving the smoothness of initial conveying and the finished product qualification rate.
Owner:HAINING HUMING PLASTIC STEEL CO LTD

Layered environmentally friendly waterborne radiative cooling coating composition

PendingCN122356912AEngineeringMaterials science
This application provides a layered, environmentally friendly waterborne radiative cooling coating composition, belonging to the field of radiative cooling. The coating composition includes a waterborne radiative cooling primer, a topcoat, and a clear coat. The primer comprises 20-50 parts of a first waterborne emulsion, 10-20 parts of a narrow bandgap optical scatterer, and 10-20 parts of a wide bandgap optical scatterer. The topcoat comprises 20-50 parts of a second waterborne emulsion and 30-60 parts of a wide bandgap optical scatterer. The clear coat comprises 20-50 parts of a third waterborne emulsion. This coating utilizes a synergistic layering of primer / topcoat / clear coat and optimized wide bandgap filler gradation to achieve high solar reflectivity and mid-infrared emissivity at a thinner film thickness, resulting in significant passive cooling. The all-waterborne system disperses and dries at room temperature, resulting in low energy consumption and no VOC risk. The layered structure enhances adhesion, weather resistance, and self-cleaning properties. Compared to high-filler thick-coating processes, this application saves raw materials, energy consumption, and construction steps, extends maintenance cycles, and reduces total life-cycle costs.
Owner:MOGUANG NEW ENERGY TECHNOLOGY (SUZHOU) CO LTD

Weathering resistance testing apparatus and weathering resistance testing method

To provide a weather resistance testing apparatus that can accelerate weather resistance testing while simultaneously improving safety and miniaturizing the equipment. [Solution] The weather resistance testing apparatus 1 comprises a pressurized container 2 capable of holding pressurized gas, a sample holding section 3 disposed inside the pressurized container 2 and capable of holding a sample S, an isolation section 20 inside the pressurized container 2 that defines an internal space V2 unaffected by the pressure inside the pressurized container 2 and has a light-transmitting member 21 that transmits light in at least a portion of it, a light source 4b disposed in the internal space V2 that irradiates light toward the sample S via the light-transmitting member 21, and an optical filter 4c disposed between the light-transmitting member 21 and the light source 4b in the internal space V2.
Owner:TOPPAN HOLDINGS INC

Multilayer encapsulation structure for solar substrates

The application relates to a multilayer encapsulation structure of a solar substrate, comprising a flexible solar substrate, an inner encapsulation layer and an outer reinforcing layer. The flexible solar substrate is sequentially stacked with a flexible transparent substrate, a lower conductive layer, an electrode wire, a photovoltaic layer and an upper conductive layer. The inner encapsulation layer comprises transparent encapsulation glue, an upper inner encapsulation layer and a lower inner encapsulation layer, and the flexible solar substrate is encapsulated between the transparent encapsulation glue, the upper inner encapsulation layer and the lower inner encapsulation layer. The outer reinforcing layer comprises filling encapsulation glue, an upper outer reinforcing layer and a lower outer reinforcing layer, and the inner encapsulation layer is encapsulated between the filling encapsulation glue, the upper outer reinforcing layer and the lower outer reinforcing layer. The flexible solar substrate is encapsulated by the multilayer encapsulation structure, so that the encapsulation structure of the solar cell with improved weather resistance and water and gas resistance is obtained.
Owner:NANO BIT TECH CO LTD

Optical laminate, image display panel, and image display device

The optical laminate provided by this invention comprises an adhesive sheet, an antistatic layer, and an optical film. The antistatic layer satisfies the following formula (1). Wherein, A and B in formula (1) are the surface resistivity (unit: Ω / □) of the antistatic layer before and after the weathering test (test conditions: Z-IN1) specified by German industrial standard DIN75220. The above optical laminate is suitable for use in image display devices used in harsh environments such as automotive applications. -2≤logB-logA≤2 (1).
Owner:NITTO DENKO CORP

Photochromic polyimide material, method for its preparation, coating, coating layer, optical device and applications

Photochromic polyimide material and preparation method, coating, coating, optical device and application; photochromic polyimide material, by introducing photochromic unit into polyimide structure, the material can quickly respond and present color change under ultraviolet light irradiation, and restore to colorless state by visible light or heating; and the polyimide matrix provides high mechanical strength, thermal stability and chemical resistance, so that the material maintains stable color changing ability in multiple light-color changing cycles. At the same time, the weather resistance of the material is greatly improved, which can adapt to outdoor and harsh environment, and expands the application prospect of the material in the fields of intelligent coating, optical device, sensor and the like, thereby solving the problem that the existing photochromic material cannot simultaneously have photoresponsivity, mechanical performance, chemical stability and weather resistance.
Owner:FOSHAN NEW QUANTUM ENVIRONMENTAL PROTECTION MATERIAL CO LTD

High-weatherability multi-color coating and preparation method thereof

The application belongs to the technical field of paint, and particularly relates to a high-weather-resistance multi-color paint and a preparation method thereof. The paint comprises the following components in parts by weight: 80-100 parts of organic silicon polyurethane, 10-15 parts of boron nitride nanosheet, 4-8 parts of nano-silica particles, 2-5 parts of polyurethane fluff micro powder, 1-8 parts of auxiliary agent, and 100-500 parts of solvent. The organic silicon polyurethane is used as the main film-forming resin, and the ternary components of the boron nitride nanosheet layer barrier, the small-particle-size nano-silica particles for constructing the micro-nano hydrophobic structure, and the polyurethane fluff micro powder for assisting in optimizing the film structure are used. The morphology and size effects among the two-dimensional boron nitride nanosheet, the spherical nano-silica particles, and the polyurethane fluff micro powder are utilized, so that the technical problems of the traditional paint, such as insufficient hardness and poor hydrophobic effect, can be solved simultaneously without modifying the fillers, and the overall hydrophobic weather-resistant performance of the coating is significantly improved.
Owner:SHANDONG JINGHONG INTELLIGENT TECH CO LTD

Metal transportable vibration reduction box formed by bending and welding sectional materials

The utility model belongs to the technical field of installation and protection of outdoor electronic equipment, and relates to a metal transportable vibration reduction box formed by bending and welding sectional materials. The defects that an engineering plastic box material is poor in secondary processability, low in size precision and poor in weather resistance, and a common metal transportable box is large in machining difficulty, long in machining period, high in cost, poor in stacking and carrying performance and the like are overcome. Box covers are respectively arranged on the left and right sides of the box body; the box cover comprises a box cover frame, a cover plate is mounted in the box cover frame, the box cover frame is integrally formed by bending and welding an aluminum alloy section I, four grooves I for bending are formed in the aluminum alloy section I, and a groove is formed in the top surface of the aluminum alloy section I; the box body comprises an open type cover plate, a lower bottom plate is arranged at a lower opening of the open type cover plate, box body frames are arranged at a left opening and a right opening of the open type cover plate respectively, the box body frames are integrally formed by bending and welding aluminum alloy sections II, four grooves II used for bending are formed in the aluminum alloy sections II, and a boss is arranged on the top face of the aluminum alloy sections II.
Owner:CHINA INST OF RADIO PROPAGATION

A powder coating with a netted appearance and its preparation method and application

This invention relates to a powder coating with a textured appearance, its preparation method, and its application, belonging to the field of coating technology. The powder coating comprises the following components in parts by weight: 70-80 parts polyurethane resin, 4-6 parts amine curing agent, 0.5-1.5 parts silane coupling agent, and 0.5-3 parts texture agent, and may optionally include functional fillers, fillers, lubricants, and lubricating dispersants. The preparation method is as follows: all components except the texture agent are mixed, melt-extruded, cooled, pulverized, and graded to obtain a base powder; then the texture agent is dry-mixed with the base powder and sieved to obtain the final product. This invention, through the synergistic effect of multiple technical features such as the film-forming system of polyurethane resin and amine curing agent, the improvement of the interfacial compatibility between filler and resin by the silane coupling agent, and the post-addition process of the texture agent, enables the coating to possess both a clear and uniform textured appearance and excellent mechanical properties and weather resistance, making it particularly suitable for coating outdoor metal components with high requirements for decorativeness and durability.
Owner:FOSHAN NUOKE ENVIRONMENTAL PROTECTION TECH CO LTD

A low-density hydrophobic buoyant material and a method for making the same

ActiveCN120923977BFiberPolymer science
The present application relates to the technical field of buoyancy material, and particularly relates to a low-density hydrophobic buoyancy material and a preparation method thereof. The low-density hydrophobic buoyancy material comprises the following components in parts by weight: 50-60 parts of epoxy resin, 35-45 parts of polyurethane modified graphene oxide-hollow glass microsphere composite material, 15-25 parts of polyaniline, 8-12 parts of short carbon fiber, 4-8 parts of diluent and 1-3 parts of curing agent. The low-density hydrophobic buoyancy material has the characteristics of low density and water absorption, excellent bulk modulus and compression strength, and good weather resistance. The preparation method of the low-density hydrophobic buoyancy material is simple in process and easy to control in operation, is conducive to industrialized mass production, and the prepared low-density hydrophobic buoyancy material is stable in quality and superior in comprehensive performance.
Owner:DONGGUAN ZHENGHE CABLE TECH CO LTD

A room temperature curing self-cleaning photocatalytic film based on multi-level interface synergistic enhancement and a preparation method thereof

This invention discloses a room-temperature curing self-cleaning photocatalytic film based on multi-level interface synergistic enhancement and its preparation method. The method includes: (1) preparing monodisperse TiO2 nanocrystals with controllable lattice strain using a non-equilibrium growth method; (2) constructing a TiO2 / UiO-66-NH2 / rGO ternary Z-type heterojunction photocatalytic material; (3) preparing a two-component room-temperature curing all-inorganic binder system composed of acid-catalyzed silica sol (ACSS) and fluorosilane-modified polysilazane; (4) compounding the heterojunction photocatalytic material with the binder system and adding nano-silica dispersion, and forming a coating liquid by ultrasonic-shear synergistic dispersion; (5) depositing it on a glass substrate using a gradient ultrasonic spraying process, and curing it into a film by room temperature-medium temperature stepwise curing. This invention achieves, for the first time, a fully inorganic self-cleaning film with both ultra-high photocatalytic activity and ultra-long weather resistance under room temperature curing conditions through multi-level interface synergy of ternary heterojunction synergistic photocatalytic enhancement, room temperature curing of two-component inorganic binder, and gradient film-forming structure design. It solves the technical problem of the difficulty in unifying photocatalytic activity, film-forming process, optical performance and service life in the prior art.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD

Preparation method of solar concentrating resin

The invention discloses a preparation method of solar concentrating resin. According to the method, bi-phenolic methane and dimethoxypropane are dissolved in the molar ratio being 1:(8-12), meanwhile, 8-12 ml of a catalyst is added, and the mixture is heated to the temperature of 65-70 DEG C and has a reaction at the temperature for 28-32 min; the mixture is cooled to the temperature of 60 DEG C, a first part of liquid caustic soda is slowly and dropwise added, the mixture is heated, and the reaction temperature is kept to range from 65 DEG C to 70 DEG C, reflux is performed for 2 h, the dimethoxypropane which does not react is recovered in a reduced pressure manner, the mixture is cooled to the temperature below 65 DEG C, 55-65 ml of a solvent is added, meanwhile, a second part of liquid caustic soda is dropwise added, reflux is performed for 2 h, a solvent solution turns yellow and is cooled and washed with hot water, a water layer is separated until the solvent solution is transparent, the solvent is evaporated out, and the resin is prepared. The resin has the characteristics of high concentrating property, high precision, good weather resistance, low cost and the like and can comprehensively improve the efficiency and the quality of a solar concentrating power generation system in the aspects of the optical effect, the weather resistance and the technology.
Owner:31HK CO LTD

Polycarbonate polyol compositions, adhesive compositions, water-based polyurethanes, water-dispersible compositions, polyurethanes for synthetic leather, and synthetic leather

To provide a polycarbonate polyol composition, etc., that can provide a polyurethane film with a long pot life, excellent handling properties, good appearance, and excellent weather resistance. [Solution] A polycarbonate polyol composition comprising a polycarbonate polyol having terminal hydroxyl groups, a compound represented by the following formula (A), and a compound represented by the following formula (B), wherein the mass ratio of compound (A) to compound (B) ((A) / (B)) is 0.0001 to 0.1000. JPEG2026091284000019.jpg10170 (In the above formula, R1 is hydrogen or an alkyl group having 1 to 12 carbon atoms, and R2 is an alkylene group having 1 to 12 carbon atoms.) JPEG2026091284000020.jpg11170 (In the above formula, R3 is an alkylene group having 2 to 12 carbon atoms, and may be a linear alkylene group, a divalent alicyclic hydrocarbon group, or a branched alkylene group.)
Owner:ASAHI KASEI KOGYO KABUSHIKI KAISHA

Coating agent, laminate, article including laminate

PendingCN122319206AMethacrylatePolymer science
This invention provides a laminate with excellent weather resistance. The coating agent of this invention comprises a dimer acid di(meth)acrylate resin, a polyfunctional (meth)acrylate compound, a photopolymerization initiator, and a light stabilizer represented by formula (1). Furthermore, the laminate of this invention comprises: a coating layer formed on a substrate layer using the coating agent of this invention; a substrate layer formed using a thermoplastic polyurethane; and an adhesive layer formed on the side of the substrate layer opposite to the side on which the coating layer is formed using at least one resin selected from acrylic, urethane, rubber, and silicone resins.
Owner:JNC CORP

Radiant heating and cooling uniform coating and method of making same

The application discloses a kind of radiant heating and cooling with heat equalizing coating and preparation method thereof, belong to the field of coating technology.The application uses water-based epoxy resin emulsion, water-based epoxy resin curing agent, high thermal conductivity graphite, alpha-aluminum oxide, copper fiber, steel fiber and polypropylene fiber as main raw materials, water-based epoxy resin emulsion and curing agent are reacted to form thermosetting resin matrix with high bonding strength and weather resistance, provide stable support structure for coating;High thermal conductivity graphite and alpha-aluminum oxide as main heat conduction framework, ensure the efficient diffusion of heat in the plane direction;Copper fiber and steel fiber are overlapped in the coating, which significantly improves the heat diffusion efficiency in the plane and thickness direction, avoids local heat accumulation;Polypropylene fiber limits microcrack propagation through bridging effect, enhances the toughness and crack resistance of the coating, ensures the long-term stability of the contact interface of the heat-conducting filler, and finally makes the coating have excellent heat equalizing ability, mechanical strength and corrosion resistance.
Owner:ZHEJIANG AKAN IND CO LTD

A two-component bio-based self-cleaning anticorrosive coating for power transmission lines and a preparation method thereof

The application belongs to the field of polyurethane materials, and discloses a two-component bio-based self-cleaning anticorrosive coating for power transmission lines and a preparation method thereof, which comprises A component and B component with a mass ratio of 1:1-2; the A component is composed of the following components in parts by mass: bio-based polyurethane prepolymer 70-75 parts, hydrotalcite 5-8 parts, stearic acid 6-8 parts, modified fumed silica 3-5 parts, dibutyl titanate 0.1-0.2 parts, substrate binder C 3-5 parts, and substrate binder D 4-6 parts. The B component is composed of the following components: bio-based polyaspartic acid ester 85-90 parts, color paste 3-5 parts, defoaming agent 2-3 parts, leveling agent 1-2 parts, anti-precipitation additive 1-2 parts, and silane 2-4 parts. The two-component bio-based self-cleaning anticorrosive coating for power transmission lines does not need primer and topcoat, can meet the requirements of corrosion resistance, weather resistance and self-cleaning effect, can achieve long-acting self-cleaning effect, can improve construction efficiency, and can simplify the construction process.
Owner:STATE GRID TIANJIN ELECTRIC POWER COMPANY +1

High-voltage wire harness for charging pile

The utility model relates to new energy automobile charging facility technical field especially relates to a high pressure wire harness for charging pile, including high pressure main line, the high pressure main line outer surface is provided with the protection device, both ends of high pressure main line all are fixedly connected with the terminal, the outer surface of two terminal all is provided with a plurality of sawtooth protrusions, the outer surface of protection device is provided with three mounting devices. The utility model discloses a high pressure wire harness for charging pile, three mounting devices through arc connecting block and outer protective layer, the wire harness band cooperation daughter magic tape, mother magic tape reinforcement, connecting plate and screw fixed in charging pile, and the equal interval of multistage fixed avoids displacement wear and tear, guarantees the even interval to be favorable to heat dissipation, promotes the adaptability and stability, and the protection device adopts three layers structure of internal insulation layer, shielding layer, outer protective layer, realizes insulation, anti-electromagnetic interference and weather resistance wear resistance function in layers, solves the problem that traditional single structure is difficult to take into account multiple needs, prolongs the life.
Owner:DONGGUAN GRACE TECH CO LTD

A wood coating that combines durability, hydrophobicity, and flame retardancy, and its preparation method.

This invention discloses a durable, hydrophobic, and flame-retardant wood coating and its preparation method, belonging to the field of timber structure building protection. The wood coating of this invention is a two-layer system, comprising a flame-retardant primer and a hydrophobic topcoat. The flame-retardant primer uses tung oil modified from natural rubber via the Diels-Alder reaction as the film-forming matrix and biochar prepared from agricultural waste straw as a bio-based flame-retardant filler. The hydrophobic topcoat uses polydimethylsiloxane / nano-silica as the core functional component. This invention uses fully bio-based raw materials as its core, and the preparation process is simple and green. Through molecular structure modification and synergistic design of the two-layer system, the coating simultaneously possesses excellent hydrophobicity, flame retardancy and smoke suppression, UV stability, and long-term outdoor durability. After being applied to the wood surface, it can simultaneously solve the core pain points of wood's flammability, moisture absorption, and poor weather resistance, showing broad application prospects in the fields of modern timber structure buildings and the protection of traditional timber architectural heritage.
Owner:SOUTHEAST UNIV

Phase change energy storage heat insulation fluorocarbon coating and preparation method thereof

This invention belongs to the field of resin synthesis technology and discloses a phase change energy storage and thermal insulation fluorocarbon coating and its preparation method. The coating comprises 23-25% PVDF fluorocarbon resin, 8-9% acrylic resin, 10-20% phase change material, and a specific composite solvent system. Through a stepwise dispersion process, the inorganic filler is first ground to ≤15μm, and then the phase change material is slowly dispersed under controlled temperature conditions, solving the technical problems of easy breakage and unstable dispersion of phase change material in solvent-based systems. This invention innovatively combines the thermal management capabilities of phase change material with the extreme durability of solvent-based fluorocarbon resin, and with optimized formulation and refined dispersion process, achieves excellent and long-lasting dynamic thermal insulation performance, providing a high-performance coating solution for building energy conservation and emission reduction. By maintaining the integrity of the PCM microcapsule structure in the solvent-based system, the coating is endowed with dynamic temperature buffering capability, matching the phase change functional lifespan with the weather resistance lifespan of the fluorocarbon resin.
Owner:GUANGDONG WHOLETOPS BUILDING MATERIALS IND

A stay cable center anchor wire clamp that is easy to install

This utility model discloses an easy-to-install center anchor clamp for catenary cables, specifically relating to the field of railway electrical equipment technology. It includes a support frame with N-shaped grooves at both ends. Two arc-shaped blocks are rotatably mounted on the inner surface of the support frame, and a pressing bolt for pressing the arc-shaped blocks is threaded onto the outer surface of the support frame. This easy-to-install center anchor clamp for catenary cables employs a return spring design. In its natural state, the return spring keeps the arc-shaped blocks open, allowing for quick insertion of the catenary cable without additional tools, simplifying the installation process. During disassembly, simply loosening the pressing bolts causes the return spring to automatically release the arc-shaped blocks, facilitating inspection or repositioning of the catenary cable and significantly improving maintenance efficiency. The spacing of the mounting bracket can be adjusted using screws to adapt to different specifications of catenary cables and installation scenarios. The support frame and all components are made of weather-resistant materials, extending their service life.
Owner:SHIJIAZHUANG JINXIONG ELECTRIC HEAT SHRINK MATERIALS CO LTD