2464 results about "Coating materials" patented technology

The invention relates to a self-cleaning nano coating material and a preparation process thereof, and belongs to the technical field of functional coatings. The coating material is prepared from nano silicon dioxide, nano aluminum oxide, graphene nanosheets, nitrogen-doped titanium dioxide, fluorinated silane, polyurethane, polydimethylsiloxane, a microcapsule repairing system, ethanol and deionized water according to a specific proportion through a multi-layer composite structure. The preparation process comprises the steps of base material surface pretreatment, reinforced particle surface modification, base material dissolution, functional additive introduction and multi-layer coating preparation. Through bottom layer enhancement, middle layer flexible buffering and surface layer functional design, excellent mechanical strength, wide-spectrum photocatalytic performance, self-repairing capacity and environmental adaptability are achieved. The problems that in the prior art, a self-cleaning coating is insufficient in mechanical performance, low in photocatalytic efficiency, lack of a self-repairing function and poor in weather resistance are solved, the service life of the coating is remarkably prolonged, and the functional stability of the coating is remarkably improved.

The invention relates to the field of coating material production, and discloses a coating formula calculation method and system based on self-learning feedback parameter correction, and the method comprises the steps: obtaining raw material basic parameters, target performance requirements and process feedback data of historical production batches, combining a material screening mechanism and an environment working condition correction strategy, and calculating a coating formula; constructing a coating formula initial input matrix; performing multi-dimensional variable normalization processing on the initial input matrix of the coating formula, introducing a feature sensitivity analysis model, and extracting a key variable group influencing the coating performance in the feature sensitivity analysis model; based on the performance response relation mapping model, analyzing error distribution between model prediction output and actual detection data by using a prediction deviation recognition mechanism, and extracting learning error features; a self-learning feedback updating mechanism is introduced, and dynamic weight optimization is conducted on the parameter correction factor set; and performing sample test and performance verification on the corrected candidate formula set. The method has the advantage that the coating formula precision is improved.

The invention discloses a high-pressure soft water medium treatment and supply system, which belongs to the technical field of seawater desalination treatment, and comprises a multi-dimensional ion detection module for detecting the concentration distribution characteristics of target inhibition ions in original seawater to generate a corresponding coating material selection instruction; the electric field dynamic coupling module captures a termination signal according to the coating material selection instruction; the shock wave generation module starts a main pump to generate fluid shock waves to execute sediment breaking action according to the termination signal; the monitoring module is used for monitoring the finally output softened water ion concentration and reversely calculating the pollution index of the coating surface; and the heat cycle feedback device is used for starting a self-cleaning mode according to the pollution index and transmitting waste heat in the cleaning process to the pump set. The electric field dynamic coupling adsorption and fluid shock wave cooperative treatment technology is adopted, high-efficiency ion capture, dynamic sediment removal and waste heat recycling can be achieved, energy consumption is remarkably reduced, and continuous and stable operation of the system is guaranteed.

The invention discloses a security camera lens production process dynamic multi-parameter process monitoring method, and relates to the technical field of multi-parameter process monitoring. The method comprises the following steps: collecting process parameters and waviness characteristic data; collecting optical characteristics and physical response data of security camera lens raw materials; discretizing the data, and generating raw material standard data according to material types and performance; collecting real-time polishing data, and calculating to obtain a polishing deviation factor vector; calculating a weight through an entropy weight method to obtain a polishing alarm correction index, giving an alarm and adjusting polishing parameters when the polishing alarm correction index exceeds a threshold value, and obtaining corrected geometric feature data; the method comprises the following steps: collecting data in a coating stage, obtaining coating material response and processing environment data through a two-dimensional feature extraction method, and respectively calculating a material response deviation index and a processing environment disturbance index; and combining the two indexes to obtain the comprehensive deviation index of the coating process. According to the comprehensive deviation index of the coating process, the production process of the security camera lens is monitored in real time.

The invention belongs to the technical field of crucible coating optimization, and relates to an intelligent coating optimization method for quartz crucible surface treatment. According to the method, coating material data, surface treatment environment data, coating process data and performance test data are collected, the performance test data serve as a real result label of a training set, denoising, missing value processing and normalization are carried out on the collected data, and through a Pearson's correlation coefficient and a principal component analysis method, the coating material data, the surface treatment environment data, the coating process data and the performance test data are obtained. According to the method, a group of key features are screened out, data dimensions are reduced, main information influencing the coating performance is reserved, a deep neural network model is trained, the coating performance is predicted through the model, and coating process parameters are optimized by adopting a particle swarm optimization algorithm based on the predicted coating performance, so that the coating performance is optimized. According to the method, the optimal parameter combination can be effectively searched, blindness and high cost of a traditional optimization method are avoided, a closed-loop intelligent coating optimization process is formed, and the optimization efficiency and performance of the coating process are remarkably improved.

The invention discloses a gas-insulated switchgear gas leakage repairing method, system, equipment and medium, and relates to the field of equipment repairing. The method comprises the following steps: scanning the gas insulated switchgear to position a gas leakage part, and preprocessing the gas leakage part; determining a scheme for blending a target interpenetrating network coating material according to the characteristics of the air leakage part and the working environment, and coating the pretreated air leakage part with the blended target interpenetrating network coating material to form a target coating; curing parameters are determined according to the type and thickness of the interpenetrating network coating material and the working environment, the power of a heating source is determined through the curing parameters, the target coating is cured through the heating source based on the power of the heating source, and the curing parameters comprise curing time, temperature, humidity and air pressure; and performing air leakage detection on the cured air leakage part to evaluate the repair effect. By implementing the technical scheme provided by the invention, the air leakage problem can be effectively and durably repaired.

The invention provides an aerogel-based heat-preservation, heat-insulation and waterproof composite coating material for a building outer wall and a preparation method thereof, and belongs to the field of building materials. Through hydrophobic modified silicon dioxide aerogel, a lightweight heat insulation frame is provided, and the waterproofness and compatibility are improved; the mechanical property and the crack resistance are enhanced through the modified potassium titanate nanofibers, and self-adaptive heat insulation is achieved; the thermoelectric effect, the wear resistance and the thermal regulation performance are optimized through plasma treatment and polyaniline coated tungsten carbide nanoparticles; the heat management performance, the crack resistance and the comprehensive heat insulation and waterproof capacity are improved through graphene oxide composite modified boron nitride; the flexibility, the hydrophobicity and the interfacial compatibility are improved through organic silicon modified bisphenol A epoxy resin; and the performance of the coating is optimized through the synergistic effect of the components.

The invention relates to the technical field of epoxy resin coatings, and discloses an inorganic composite nano anticorrosive coating material and a preparation method thereof. The inorganic composite nano anticorrosive coating material comprises a component A, a component B and a component C, wherein the component C is obtained by mixing a functional modified inorganic composite nano material and aluminum sorbate; the component A is obtained by mixing modified epoxy resin, a defoaming agent and an anti-settling agent, and the component B comprises a polyamide curing agent. The inorganic composite nano anticorrosive coating material disclosed by the invention has excellent toughness, wear resistance, corrosion resistance, antibacterial and antifouling properties and ultraviolet resistance.

The invention discloses a device and a method for testing wear resistance of a coating material in a high-temperature environment, and relates to the technical field of coating material testing, and the device comprises a workbench, a friction force loading mechanism, a test force loading mechanism, a high-temperature heating system, a force detection unit and a computer. The friction force loading mechanism provides stable friction force, the test force loading mechanism accurately applies test force, the high-temperature heating system creates a high-temperature environment, and the force detection unit detects force data in real time and transmits the force data to the computer for processing and analysis. The second driving mechanism is unique in structure and can accurately control test force loading, the circulating cooling unit is further arranged to protect the transmission shaft, the high-temperature furnace meets different temperature requirements, inert gas can be introduced to prevent high-temperature oxidation, and compared with a vacuum testing machine, the manufacturing cost can be greatly reduced. The problem that an existing detection device cannot accurately test the wear resistance of the coating material in a high-temperature environment is solved, and powerful support is provided for research, development and application of the coating material in the fields of aerospace and the like.

The invention discloses an antibacterial corrosion-resistant coating and a preparation method thereof, and relates to the field of coating materials. The coating is prepared from the following components in percentage by mass: 2 to 5 percent of nano silver ion loaded mesoporous silicon dioxide nano particle antibacterial aid, 5 to 10 percent of zinc powder-containing corrosion inhibitor, 3 to 8 percent of nano montmorillonite, 30 to 40 percent of modified epoxy resin, 20 to 30 percent of polyurethane prepolymer and other aids. The nano silver ion antibacterial auxiliary agent is loaded in mesoporous silica nanoparticles through an ion exchange method, the zinc powder corrosion inhibitor is prepared through stirring and ball milling dispersion, and the modified epoxy resin is modified by adopting a silane coupling agent. The preparation process of the coating comprises the stages of premixing, grinding and refining, initiating polymerization and post-treatment, wherein a grinding medium is zirconium oxide beads with the diameter of 0.5-2 mm. The coating has excellent antibacterial and corrosion-resistant performance, is suitable for metal surface protection, and can effectively solve the problems that an existing coating is not lasting in antibacterial effect, insufficient in corrosion-resistant performance and not ideal in comprehensive performance.

The invention relates to the field of vacuum coating, in particular to a crystal hot-fix rhinestone vacuum coating device and a crystal hot-fix rhinestone vacuum coating process. The invention aims to solve the technical problem that the coating quality is reduced in the next coating process due to the fact that original coating materials are easy to accumulate and remain on the surface and in the heating container in the long-term high-temperature state and coating process of the heating container. In order to solve the technical problem, the vacuum coating device for the crystal ironed diamonds comprises a main box body, vacuum equipment is arranged at one end in the main box body, the vacuum equipment comprises a tank body, a plating material evaporation device is arranged in the tank body, the plating material evaporation device comprises a fixing column, the bottom of the fixing column is fixedly connected with the tank body, and the bottom of the fixing column is fixedly connected with the tank body. Threads are arranged outside the lower ends of the fixing columns. The evaporation disc can be replaced through the coating material evaporation device, and the replaced evaporation disc is cleaned, so that the phenomenon that the previous coating raw materials are easy to remain and accumulate around the evaporation disc in the long-term coating process is avoided.

The invention relates to the technical field of cable production, in particular to a fireproof insulation cable fireproof material coating device which comprises a coating machine main body, a first positioning cylinder and a second positioning cylinder are arranged on the two sides of the coating machine main body respectively and are both installed on a workbench, a cable core is arranged in the coating machine main body, and the cable core is arranged in the coating machine main body. The outer side of the cable core is coated with a fireproof layer, the coating device comprises a first positioning mechanism and a second positioning mechanism, the wound and bent cable core can be straightened, the surface of the straightened cable core is smoother, the cable core can enter the coating machine body more evenly, coating materials can be evenly attached, deviation in the coating process is reduced, and therefore the coating precision is improved, and the service life of the cable core is prolonged. And the cable core can be centered and positioned to ensure that the cable core is always in the central position in the coating process, so that the thickness of the fireproof layer on the outer side of the cable core is uniform and consistent, and the phenomenon that the local part is too thick or too thin due to position deviation is effectively avoided.

The invention relates to the field of coating materials, and provides a high-wear-resistance stainless steel-based composite coating which is composed of dumbbell-shaped silver-doped silicon carbide, sea urchin-shaped titanium dioxide, 304 stainless steel powder, NiCrBSi nickel-based autolytic alloy powder and the like. The silver-doped silicon carbide is prepared through sol-gel, high-temperature carbonization and acid pickling, and the titanium dioxide filler is obtained through hydrothermal synthesis and calcination. Supersonic flame spraying deposition is adopted, the compactness and bonding strength are enhanced through laser remelting, and finally the wear resistance, the pollution resistance and the antibacterial performance are improved through vacuum annealing, mechanical polishing and hydrophobic coating modification. The design of dumbbell-shaped silver-doped silicon carbide and urchin-shaped titanium dioxide is adopted, high-wear-resistance, antibacterial and high-binding-force coating performance is achieved, the problems of wear resistance and bacteriostasis are solved, and the coating is suitable for the fields of cabinet door plates and the like.

The invention provides a water-based intumescent fireproof coating as well as a preparation method and application thereof, and relates to the technical field of coating materials. The water-based intumescent fireproof coating is prepared from the following components in parts by weight: 25 to 35 parts of water-based silicone acrylic emulsion, 40 to 60 parts of flame retardant, 15 to 25 parts of water, 5 to 10 parts of titanium dioxide and 1 to 5 parts of coalescing agent, wherein the flame retardant is ammonium polyphosphate modified by 1-cyclohexylpiperazine. According to the water-based intumescent fireproof coating disclosed by the invention, the silicone acrylic emulsion is used as a main film forming substance, the 1-cyclohexylpiperazine modified ammonium polyphosphate is used as a flame retardant, and the titanium dioxide is used as a filler to form a fireproof intumescent system, so that the water-based intumescent fireproof coating has the advantages of simple production process, excellent performance, environment friendliness and the like; and the prepared fireproof coating has good fireproof performance and durability.

The invention relates to the technical field of ceramic substrates, and provides a bending-resistant aluminum oxide multilayer ceramic substrate and a preparation method thereof. The bending-resistant aluminum oxide multilayer ceramic substrate comprises the following raw material components in parts by weight: 95-110 parts of aluminum oxide, 3-8 parts of a plasticizer, 6-12 parts of an auxiliary agent, 4-7 parts of a binder, 3-6 parts of a dispersant and 60-70 parts of a solvent, the preparation method of the additive comprises the following steps: A1, adding calcium oxide into ethanol, adding glucose, stirring until the materials are uniformly mixed, and concentrating to obtain a glucose coated material; a2, carrying out annealing treatment on the glucose coated material to obtain a carbon coated material; and A3, uniformly mixing the carbon-coated material with magnesium oxide and titanium dioxide, and carrying out ball milling to obtain the auxiliary agent. According to the technical scheme, the problem of low mechanical property of the aluminum oxide ceramic substrate in the prior art is solved.

The invention relates to a high-temperature-resistant insulating coating material for an electromagnetic wire as well as a preparation method and application thereof. The method comprises the steps that the surface of a wire is pretreated; the preparation method comprises the following steps: preparing raw materials of the glass component according to a ratio, melting glass, ball-milling and sieving to obtain glass powder, and then adding the ceramic component and the auxiliary additive component to obtain an inorganic filler; the preparation method comprises the following steps: mixing organic silicon resin, inorganic powder, a solvent, a pigment and an auxiliary agent in proportion to obtain uniform slurry; the method comprises the following steps: coating a wire with a coating, curing the wire after coating is completed, and naturally cooling the wire to room temperature after curing is completed. The electromagnetic wire surface coating can be prevented from aging, peeling, cracking, stripping and losing efficacy at the high temperature of 500 DEG C, the performance of high insulation, impact resistance, long service life and the like of the coating material in the high-temperature environment is improved, it is guaranteed that equipment can tolerate severe natural environments or machine part working environments, and the electromagnetic wire surface coating has high stability and long service life.

The invention relates to the technical field of ITO coating materials, and provides a low-sheet-resistance and high-light-transmittance ITO coating film and a preparation method thereof.The preparation method comprises the steps that S1, an yttrium-doped zirconium oxide substrate is prepared; s2, performing surface activation on the yttrium-doped zirconium oxide substrate; s3, performing magnetron sputtering in a radio frequency magnetron sputtering chamber, and forming a layer of ITO film on the surface of the yttrium-doped zirconia substrate; and S4, annealing treatment and gradient cooling treatment are carried out. The epitaxial growth of the ITO coating film is optimized through the prepared yttrium-doped zirconia substrate, and the magnetron sputtering, annealing and gradient cooling processes are combined, so that the microstructure of the film is optimized, the carrier mobility and the uniformity and stability of the film are improved, the grain boundary defect and carrier scattering loss in the ITO coating film are reduced, and the performance of the film is improved. The low sheet resistance and high light transmittance of the ITO coating film are synergistically improved, and the obtained ITO coating film has important application value in the fields of high-performance optoelectronic devices, transparent conductive films and the like.

The invention relates to a bio-based degradable UV-curable coating material for a microcapsule fire extinguishing agent, the microcapsule fire extinguishing agent and a preparation method and application of the bio-based degradable UV-curable coating material for the microcapsule fire extinguishing agent. The bio-based degradable UV-curable coating material for the microcapsule fire extinguishing agent is prepared from the following components in parts by weight: 100 parts of bio-based hyperbranched polyurethane / acrylate prepolymer; 10-150 parts of a reactive flame-retardant monomer, 0.1-5 parts of a photoinitiator and 0-70 parts of a solvent. The coating material for the microcapsule fire extinguishing agent is a thermal response type material, when the coating material is prepared into a shell layer of the microcapsule fire extinguishing agent and the environment temperature reaches a preset threshold value, the shell layer is rapidly broken due to thermal expansion coefficient difference and chemical bond fracture, internal fire extinguishing liquid is released, the process can be completed within 3 seconds or less, rapid response in the initial stage of a fire disaster is ensured, and fire extinguishing efficiency is improved. The thermal response speed is high, the microcapsule fire extinguishing agent can be rapidly broken in the early stage of a fire, rapid release of fire extinguishing liquid is achieved in the early stage of the fire, efficient fire extinguishing is achieved, a fire source is controlled in time, and fire spreading is effectively prevented.

The invention provides an antifriction wear-resistant Zr / ZrN / ZrCuN composite coating as well as a preparation method and application thereof, and relates to the technical field of surface coating materials. The invention provides an antifriction wear-resistant Zr / ZrN / ZrCuN composite coating which comprises a Zr bonding layer, a ZrN supporting layer, a ZrN transition layer and a ZrCuN composite layer which are sequentially stacked, and the ZrCuN composite layer comprises a ZrN ceramic phase and doped Cu. The Zr / ZrN / ZrCuN composite coating provided by the invention has the advantages of high plastic deformation resistance, low friction coefficient, high wear resistance, good film-substrate binding force and excellent comprehensive performance, can prolong the service life and improve the functions of medical metal materials such as titanium alloy and the like, and is completely suitable for the surface protection requirements of medical apparatuses and instruments, tools and molds and mechanical parts.

The invention relates to the field of thermal barrier materials, and discloses a coating material, a preparation method thereof and an environmental barrier coating. The chemical formula of the coating material is MAlO3, and M comprises at least one of Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb and Lu. The coating material provided by the invention has excellent fracture toughness, relatively low thermal conductivity, relatively high thermal expansion coefficient and good CMAS corrosion resistance.

The embodiment of the invention provides a preparation method of an NCA coated modified material, and belongs to the technical field of preparation of battery materials, the method comprises the following steps: providing nickel-cobalt-containing lithium aluminate NCA particles as a matrix material, and carrying out dispersion treatment on the NCA particles to ensure uniform particle size; the method comprises the following steps: forming a reaction mixing system by using a uniformly dispersed solution and a coating material containing aluminum oxide or magnesium oxide, and heating and stirring under a specific temperature condition so that the coating material can be effectively deposited on the surfaces of NCA particles; stirring is controlled based on preset time and speed parameters, and a coating material is promoted to be uniformly and firmly attached to the surfaces of NCA particles, so that the problem that a coating layer is not uniformly distributed or is poorly combined with a matrix is solved; and carrying out high-temperature heat treatment on the NCA particles with the coating layers under the protection of nitrogen so as to enhance the interface stability. Through the scheme of the embodiment of the invention, the problem of how to solve the problem of uneven distribution of the coating layer or poor combination with the matrix in the preparation process of the NCA coating modified material can be solved.

The invention discloses a coating and hot-pressing process of a PHA material, and belongs to the field of packaging material coating. The process comprises the following steps: tightly combining a molten PHA coating material with a base material through hot pressing; the PHA coating is further compacted through a hot press polish roller, and bubbles between the PHA coating and the base material are eliminated; then entering a cooling device, rapidly cooling through internal water circulation so as to cure the PHA coating, and meanwhile, spraying a trace amount of deionized water mist so as to prevent the base material from being dried and embrittled due to high temperature; entering a recrystallization zone, regulating and controlling the crystallinity of PHA, and balancing the mechanical property and degradation rate. The PHA can be well bonded with various base materials (such as paper, fabrics and films) in the hot pressing process, and an additional adhesive is not needed. Therefore, the technological process is simplified, and the cost is reduced. And the PHA can be uniformly coated on the surface of the base material through the hot pressing process to form a compact coating, so that the performance consistency of the product is ensured.

The invention discloses a radiation-resistant high-entropy alloy magnetron sputtering coating and a preparation method thereof, and belongs to the technical field of radiation-resistant coating materials. On the basis of the multi-element synergistic effect and lamination interface design of the high-entropy alloy, FeCrNi and FeNiCrMn are used as target materials, and the coating with the nanometer lamination structure is prepared by accurately regulating and controlling the target current, the gas flow, the deposition time and other process parameters of magnetron sputtering; meanwhile, accurate control over the single-layer film thickness and the interface density is achieved by adjusting the coupling relation between the sputtering power and the deposition rate, and it is ensured that all unit layers are flat and compact, and interface combination is complete. And a multi-heterogeneous interface is formed through the design of a laminated interface, so that a defect capture network is formed, the hardness of a single-layer coating is improved, the hardening rate after irradiation can be lower than that of a traditional single-layer coating, and the problems of crystallization and brittleness failure induced by irradiation are effectively relieved.

The invention relates to the technical field of coating materials, in particular to a high-scratch-resistant and wear-resistant coating material and a preparation method thereof.The high-scratch-resistant and wear-resistant coating material is prepared from, by weight, 20-30 parts of tetraphenol ethane tetraglycidyl ether epoxy resin, 15-25 parts of polyurethane modified polytetrafluoroethylene, 15-25 parts of acrylate modified polysilazane and 5-15 parts of modified nano tungsten carbide. 2-5 parts of a curing agent, 1-3 parts of a dispersing agent and 0.5-1 part of an antioxidant; the preparation method comprises the steps of raw material mixing, stirring, coating, drying, heat treatment and the like. Through matching of specific raw materials, the prepared coating paint not only can improve the scratch resistance and wear resistance of a metal matrix, but also has good high temperature resistance, high humidity resistance and corrosion resistance, and the performance is not affected when the coating paint is used in different environments.

The invention relates to the technical field of coating materials, and discloses a pure titanium micro-arc oxidation coating for a vacuum cup and a preparation method thereof.The preparation method comprises the following steps that surface pretreatment is conducted, specifically, a pure titanium vacuum cup inner container workpiece is sequentially subjected to degreasing, acid pickling and ultrasonic cleaning; preparing an electrolyte, namely adding 15-25 parts by weight of a silicon-containing compound, 5-12 parts by weight of metal salt, 3-8 parts by weight of an antibacterial agent and 1-5 parts by weight of a stabilizer into deionized water, and controlling the pH value to be 8.5-10.5; and performing micro-arc oxidation treatment. According to the invention, a silane compound in the micro-arc oxidation electrolyte contains a high-activity silanol group which is subjected to condensation reaction with titanium hydroxyl on the surface of a pure titanium substrate under the action of an electric field to form stable covalent bonding, so that the bonding strength of the coating and the substrate is enhanced; metal ions generated by metal salt electrolysis are co-deposited with titanium ions through plasma discharge, a composite oxide structure is constructed, and micro defects on the surface of a titanium substrate are sealed.

Provided is a method for determining the adhesive penetration into at least one porous coating material which is pressed with at least one carrier plate and at least one adhesive layer arranged on the carrier plate. The adhesive penetrates or rises into the at least one porous coating material during the pressing process.

The present invention provides a high-entropy alloy coating material, comprising: FeCoCrNiAl high-entropy alloy powder and yttrium powder; the weight of the yttrium powder is 0.5-1.0 wt.% of the weight of the FeCoCrNiAl high-entropy alloy powder. A method for preparing a wear-resistant coating by plasma cladding is also provided. By using the plasma cladding process with the high-entropy alloy-based coating material, a FeCoCrNiAl coating with a single BCC structure can be directly prepared on the surface of a substrate without further heat treatment, and a high-performance wear-resistant coating can be obtained while effectively reducing costs.

The invention discloses a low-absorption high-emission radiation refrigeration coating material, which comprises a bottom coating and a surface coating, the bottom coating comprises BaSO4 with different particle sizes and a film forming substance, and the surface coating comprises a surface layer filler and a film forming substance. The invention also discloses a preparation method of the material, which comprises the following steps: dispersing and mixing BaSO4 with different particle sizes, a film-forming substance and a solvent to obtain bottom layer slurry, and filtering to obtain a bottom layer coating; dispersing and mixing a surface layer filler, a film-forming substance and a solvent to obtain surface layer slurry, and filtering to obtain a surface layer coating; the prime paint is sprayed on the surface of the base material, and then the surface paint is sprayed on the surface of the prime paint; and curing to obtain the coating. The material has excellent solar spectrum reflection performance, high infrared radiation performance of an atmospheric window and relatively good ultraviolet aging resistance, and can be applied to multiple fields of high-end optical instrument detection, communication electronics, petrochemical engineering, energy-saving buildings and the like.

The invention provides a bipolar plate composite coating and an electrolytic bath, and relates to the technical field of coating materials, the bipolar plate composite coating provided by the invention comprises Ti element, Ta element and Si element, and the composite coating has better corrosion resistance and smaller interface contact resistance. Moreover, the composite coating provided by the invention does not use noble metal, so that the cost is relatively low. In conclusion, the bipolar plate composite coating provided by the invention has relatively good conductivity, relatively good corrosion resistance and relatively low cost.

The invention discloses a protective coating for an aluminum alloy heat exchange tube and a preparation method of the protective coating, and relates to the technical field of coating materials. The protective coating for the aluminum alloy heat exchange tube at least comprises the following raw materials in parts by mass: 100 parts of bisphenol A epoxy resin; 28 to 32 parts of polyether amine D230; 8 to 12 parts of a modified MgAlCe-BTC-LDH filling material; 4 to 6 parts of polydopamine modified hexagonal boron nitride; 35 to 45 parts of propylene glycol methyl ether acetate; and 1-2 parts of a dispersant. The modified MgAlCe-BTC-LDH filler prepared by the invention realizes triple functions of Ce element oxidation resistance, BTC corrosion inhibition and layered barrier, and the polydopamine modified hexagonal boron nitride prepared by the invention effectively improves the heat-conducting property, solves the contradiction between insulation and heat conduction, and adapts to the protection requirement of an aluminum alloy heat exchange tube.