872 results about "Superhydrophobe" patented technology

The invention relates to a preparation method of a high-durability multifunctional super-hydrophobic coating. According to the method, a mixed solution of an adhesive and hydrophobic modified nanoparticles is subjected to phase separation through non-solvent induction, so that the hydrophobic modified nanoparticles are coated on the outer layers of adhesive particles to form a uniform suspension, and finally, a micro-nano structure dispersed on the surface and inside of a coating can be obtained. After the surface layer is worn, the newly exposed surface still has an excellent micro-nano structure, namely super-hydrophobic performance; on the other hand, the nanotubes (wires) are added into the suspension, so that the mutual connection among the adhesive particles is further enhanced, and finally, the firm super-hydrophobic coating can be obtained. The super-hydrophobic coating provided by the invention has excellent durability, chemical stability, ultraviolet resistance and thermal stability, and functions of photo-thermal, electric heating, antibiosis, easy deicing, high thermal conductivity and the like, is suitable for various base materials, and is easy to realize large-scale preparation.

The invention discloses a self-adaptive anti-sticking cable and a preparation method and application thereof. The self-adaptive anti-sticking cable comprises a superconducting core wire, a self-adaptive anti-sticking layer, a self-repairing insulating layer and a multifunctional outer sheath which are sequentially arranged from inside to outside. According to the scheme, the problems of debonding, breakdown, energy consumption and failure of a traditional cable in an extreme environment are comprehensively solved through gradient piezoelectric-phase change synergistic dynamic stress compensation, vertical boron nitride insulation network directional blocking, thermoelectric-super-hydrophobic multifunctional outer sheath integration and an extreme environment adaptive self-repairing system.

The invention relates to a preparation method of a radiation refrigeration coating with super-hydrophobic performance. According to the method, hydrophobic modified nano-particles and nano-particles with high reflectivity and high emissivity are blended in an adhesive solution, an adhesive is separated out to form a micron-sized aggregate through a non-solvent induced phase separation technology, and meanwhile, various nano-particles are uniformly coated on the surface of the aggregate, so that a stable suspension system is prepared. The radiation refrigeration coating has excellent radiation refrigeration performance, excellent super-hydrophobicity and good durability, the preparation process is simple, the radiation refrigeration coating is suitable for large-scale industrial application of outdoor scenes such as building outer walls, and a new technical solution is provided for developing efficient and lasting radiation refrigeration materials.

The invention belongs to the technical field of super-hydrophobic materials, and particularly relates to a preparation method and application of magnetic response multifunctional super-hydrophobic biomass aerogel. The super-hydrophobic PDMS-coated CMIL-101 / CS aerogel is prepared by combining chitosan (CS), a magnetic porous carbon material (CMIL-101) and polydimethylsiloxane (PDMS) through a freeze drying technology, so that efficient oil-water separation and organic pollutant microplastic removal are realized. The aerogel utilizes magnetic response and photo-thermal characteristics, promotes oil adsorption and treats high-viscosity oil in a magnetic field, simplifies the purification process, and has important application value for water body remediation.

The invention discloses super-hydrophobic high-thermal-stability piperazine pyrophosphate and a preparation method thereof.The super-hydrophobic high-thermal-stability piperazine pyrophosphate comprises piperazine pyrophosphate, the surface of piperazine pyrophosphate is coated with a vesicle structure, and the vesicle structure is a self-assembly structure obtained after alcoholysis reaction of a polysulfide silane compound and piperazine pyrophosphate. According to the sulfur-containing silane material with piperazine pyrophosphate coated with the vesicle structure, piperazine pyrophosphate has super-hydrophobic performance due to the vesicle structure, super-hydrophobic durability is achieved, good water resistance and extremely low moisture absorption can be kept in a high-humidity environment, and the problem that piperazine pyrophosphate powder absorbs moisture and is agglomerated can be solved. The vesicle structure has the effects of blocking heat and substance transfer and reducing the thermal oxidation rate of PAPP, so that the piperazine pyrophosphate provided by the invention also has excellent thermal stability and final char forming performance, and is beneficial to reducing the dosage of the piperazine pyrophosphate in a flame-retardant high polymer material.

The invention belongs to the technical field of antibacterial super-hydrophobic functionalization of selective laser sintering parts, and particularly relates to a preparation method of a breathable, antibacterial and self-cleaning TPU sports knee pad. According to the invention, SiO2 and TiO2 are grown on GO to obtain super-hydrophobic modified GO, and the super-hydrophobic modified GO-WPU emulsion is prepared through emulsion polymerization. Then, the TPU sports knee pad which is formed through the SLS technology and is of a gradient hollowed-out lattice structure with the hollowed-out degree gradually increasing from outside to inside is coated with an antibacterial and self-cleaning coating. The finally prepared TPU sports kneecap has breathable, antibacterial and self-cleaning functions, and is light to wear and high in buffer protection performance.

The invention belongs to the field of functional activated carbon materials, and relates to a super-hydrophobic activated carbon adsorption material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out hydrolytic polymerization reaction on hydroxyl-containing nanoparticles and organosilane in an alkaline water-containing solvent to obtain the super-hydrophobic nanoparticles, and coating the surface of the activated carbon with the super-hydrophobic nano-particles to obtain the super-hydrophobic activated carbon. Wherein the chemical structural formula of the organosilane is as follows: # imgabs0 # R1 is straight chain alkyl of C10-C20, and R2, R3 and R4 are alkoxy or halogen of C1-C5. The super-hydrophobic activated carbon adsorption material provided by the invention not only has excellent super-hydrophobic performance, but also can avoid blockage of pores of activated carbon, has excellent adsorption performance, and can be widely applied to the field of adsorption treatment of volatile organic compounds.

The invention relates to the technical field of architectural glass coatings, and discloses a functional coating for architectural glass and a preparation method of the functional coating. Comprising the following raw materials in parts by weight: 40-60 parts of water-based acrylic resin emulsion, 0.4-0.6 part of a defoaming agent, 5-15 parts of modified nano zinc oxide, 0.3-0.5 part of a flatting agent, 1.5-2.5 parts of a coalescing agent, 3-5 parts of a curing agent, 2-4 parts of a dispersing agent, 30-45 parts of deionized water and 3-5 parts of a thickening agent. An alternating structure formed by copolymerization of alkenyl ether (ester) and fluorine-containing ethylene is grafted on the surface of nano-zinc oxide, so that the surface of the nano-zinc oxide has fluorine-containing chain segments, and the excellent hydrophobic property of the chain segments and the antistatic capacity of the nano-zinc oxide cooperate with each other, so that the coating has super-hydrophobic property and self-cleaning capacity; the compatibility of the modified nano-zinc oxide and the coating is remarkably improved, and meanwhile, the nano-zinc oxide has a shielding effect on ultraviolet rays in long and medium wave bands, so that a coating film formed by curing the coating has excellent anti-ultraviolet performance.

The invention relates to a preparation method of a water-based environment-friendly coating, in particular to a preparation method of a multi-layer alternating type super-hydrophobic self-cleaning water-based environment-friendly coating, which is characterized in that TiO2 / ZIF-8 micro-nano structure particles with photocatalytic performance are prepared by growing ZIF-8 on the surface of carboxylated modified TiO2 in situ. Perfluorodecyl trimethoxy silane (PFDTES) is used as a main substance with a hydrophobic function, and water-borne epoxy resin (EP) is introduced to hybridize water-borne fluorocarbon resin (FEVE) to serve as a bonding layer. The preparation method comprises the following steps: chemically bonding TiO2 / ZIF-8 / PFDTES and hybrid resin by gamma-aminopropyltriethoxysilane (KH550) carrying activation sites through a site regulation and control technology, so as to form the synergistically functionalized super-hydrophobic self-cleaning water-based environment-friendly emulsion. And the coating isolates the adhesion effect of most bacteria and the harm of domestic sewage. The photocatalytic function can degrade an oil film formed by pollutants such as organic substances and oil stains on the surface of the material. The multi-layer alternate functional coating greatly enhances the corrosion resistance of the substrate material, and prolongs the service life of the material.

The invention relates to the technical field of PDRC coatings, and discloses a novel super-hydrophobic PDRC coating with high mechanical strength. The coating can be prepared by a spraying process with large-scale production and low energy consumption. The PDRC coating is composed of poly (poly (GMA-co-FMA)) modified by a silane coupling agent (KH550) and SiO2 / TiO2 particles. By adjusting the mass ratio of SiO2 to TiO2 and the content of poly (GMA-co-FMA), the optimized PDRC coating shows the solar reflectivity of 91.06% and the emissivity of 93.72%, has the super-hydrophobicity of about 157 degrees, and effectively prevents dust attachment. In addition, the PDRC coating still keeps the reflectivity of 91.06% after 3,000 times of wear-resistant cycles of 250g load, which indicates that the PDRC coating has excellent mechanical durability. Due to the excellent optical performance, the surface temperature of the coating is reduced by about 13.2 DEG C, and the net cooling power of about 109.2 W / m is provided. The PDRC coating can be further processed into variants with different colors without influencing the high reflectivity and emissivity of the PDRC coating, so that the PDRC coating is suitable for practical application.

The invention discloses a preparation method of a super-hydrophobic antibacterial fabric with a photothermal effect, which comprises the following steps: firstly, loading a photothermal preparation on the surface of the fabric to endow the fabric with photothermal performance, and then introducing a composite coating formed by hydrophobic silicon dioxide nanoparticles and a silane coupling agent with an alkane chain, the surface energy of the material is reduced, a micro-nano coarse structure is constructed, and the antibacterial fabric with excellent photo-thermal and super-hydrophobic properties is prepared; the surface water contact angle of the prepared super-hydrophobic antibacterial fabric is 158 degrees, the surface temperature reaches 120 DEG C under the irradiation of near-infrared light, and the super-hydrophobic antibacterial fabric shows excellent photo-thermal cycling stability and super-hydrophobic high-temperature resistance; the antibacterial rate of the super-hydrophobic antibacterial fabric exceeds 99.0% under the synergistic effect of passive super-hydrophobic antibacterial adhesion and active photo-thermal sterilization, and the super-hydrophobic antibacterial fabric is wide in antibacterial range and long in antibacterial life.

The invention discloses a super-hydrophobic self-repairing polyurethane film for photovoltaics and a preparation method of the super-hydrophobic self-repairing polyurethane film. The super-hydrophobic self-repairing polyurethane film is prepared from the following components in parts by weight: polyether polyol, isocyanate, a catalyst, a solvent, a self-repairing auxiliary agent, a chain extender and super-hydrophobic nanoparticles, the super-hydrophobic nano particles are fluorine-silicon polymer nano particles which are modified hydrophobic nano particles obtained by hydrolyzing two or more organic silicon and then introducing a C-F bond through copolycondensation to realize fluorination modification; the service life of the composite material is prolonged, the durability of the composite material is improved, and the material can be self-healed after being damaged by the outside; on the basis of self-repairing, hydrophobic nanoparticles are added to realize a super-hydrophobic surface; the transparent polyurethane film material for the photovoltaic power generation panel can be adhered through electrostatic adsorption or other adhesives, so that the film material is loaded on the photovoltaic panel, the photovoltaic panel is protected, and the photovoltaic panel is prevented from being damaged due to external environment pollution.

The present invention relates to the field of fine chemical technology, and more particularly to IPC C09D163, and more specifically to a flame retardant super hydrophobic coating and its use method. In the present invention, firstly, a low surface energy organosilicon-modified polyurethane prepolymer Si-PUA is synthesized by reacting organosilicon with diisocyanate, and then Si-PUA and P-N halogen-free flame retardant modified epoxy acrylic resin mixed solution are sprayed on the surface of the base to form a low surface energy coating; Then, the nano-silicon dioxide modified by IEM is sprayed on the Si-PUA coating to form a double-layer structure, and cross-linked by a photoinitiator, so as to improve the super hydrophobicity and flame retardant properties of the coating.

The invention discloses a long-acting super-hydrophobic microcapsule as well as a preparation method and application thereof, and belongs to the technical field of super-hydrophobic materials. The long-acting super-hydrophobic microcapsule comprises a shell layer and a reactive core material wrapped in the shell layer, the outer surface of the shell layer is a rough surface formed by raised dispersed particles; the particle bulges are formed by stacking a plurality of nano-particles; the outer surface of the shell layer is covered with a cross-linked polymer network; the cross-linked polymer network is a SiO2 nano-particle network functionalized by polydimethylsiloxane; the material of the shell layer is preferably polyurea formaldehyde, and the material of the reactive core is preferably hexamethylene diisocyanate. The long-acting super-hydrophobic microcapsule provided by the invention shows excellent thermal stability, super-hydrophobicity, self-cleaning property and wear resistance, not only prolongs the service life of the microcapsule, but also ensures the stability and reliability of the microcapsule under complex environmental conditions, so that the long-acting super-hydrophobic microcapsule has great significance in solving the problem of microcapsule hydrophobic function failure caused by environmental factors.

The invention discloses a super-hydrophobic catalyst for catalyzing aqueous phase coupling of ethanol as well as a preparation method and application of the super-hydrophobic catalyst, and aims to provide a super-hydrophobic catalyst which can effectively improve the hydrophobic performance of a pure nickel-based catalyst, promote further coupling of low-carbon alcohol to higher alcohol and improve the water phase coupling of ethanol. According to the technical scheme, the preparation method comprises the following steps: adding a nickel-based catalyst and a super-hydrophobic polymer polydivinylbenzene into a ball milling tank according to a mass ratio of 1: (0-4); and carrying out ball milling for 2-10 hours at the rotating speed of 200-600 rpm to obtain the super-hydrophobic catalyst. The catalyst is used for synthesizing high-carbon alcohol from ethanol in a water phase; belongs to the technical field of synthesis.

The invention discloses a preparation method of photo-thermal super-hydrophobic flame-retardant polyurethane sponge for oil-water separation, which comprises the following steps: introducing a polydopamine (PDA) / MXene material into polyurethane foam through a simple one-step foaming method, then introducing a nitrogen-phosphorus-silicon hybrid flame retardant N3P3 [NH (CH2) 3Si (OEt) 3] 6 through dip-coating and a sol-gel method, and finally preparing the photo-thermal super-hydrophobic flame-retardant polyurethane sponge for oil-water separation. The preparation method of the flame-retardant photo-thermal super-hydrophobic polyurethane sponge for oil-water separation is obtained. The polyurethane sponge prepared by the method not only has stable super-hydrophobicity, excellent photo-thermal conversion performance and excellent adsorption capacity to oil products, but also has better thermal stability.

The invention belongs to the technical field of material surface modification, and relates to a super-hydrophobic-super-hydrophilic reversible conversion material (sporopollen extracted from plants serves as a material matrix) and a preparation method. The invention relates to a super-hydrophobic-super-hydrophilic reversible transformation material. A matrix carrier of the reversible transformation material is sporopollen extracted from plants. The sporopollen is derived from pollen, and the pollen is selected from one or more of entomophilous pollen, aeolian pollen or natural spores. The natural microcapsule is prepared on the basis of natural substances extracted from pollen and spores, the process is simple, and the natural microcapsule has a natural core-shell structure, uniform micron size and micro-nano structure, monodisperse particle size distribution and high physical and chemical stability; and meanwhile, the natural microcapsule can realize super-hydrophobic-super-hydrophilic hydrophilic-hydrophobic reversibility of the surface under pH response.

The invention provides a preparation method of a nano super-hydrophobic material. The preparation method comprises the following steps: firstly, selecting nano silicon dioxide particles with the particle size of 20-50 nanometers, and matching the nano silicon dioxide particles with heptadecafluorodecyl trimethoxysilane and other raw materials; the nano silicon dioxide particles are subjected to surface modification for 3-5 hours at 40-60 DEG C by controlling the volume ratio of absolute ethyl alcohol to deionized water to be (3-5): 1 and the mass ratio of the long-chain alkyl silane coupling agent to the nano silicon dioxide particles to be (0.5-1.5): 1. Adding 0.1-0.5% hydrochloric acid or sulfuric acid for catalysis, and stirring at room temperature for 2-4 hours to form a sol-gel system; ultrasonically cleaning the substrate, activating with a sodium hydroxide solution, coating by a spraying, dip-coating or spin-coating method, and drying and curing at 60-80 DEG C for 2-3 hours to obtain a finished product. The water contact angle of the prepared material is not lower than 150 degrees, the rolling angle is not higher than 5 degrees, the performance is stable in the environment with the temperature ranging from-20 DEG C to 80 DEG C and the humidity ranging from 20% to 90%, and the water contact angle is still not lower than 140 degrees after more than 500 times of abrasive paper friction tests.

The invention discloses a method for preparing a super-hydrophobic antibacterial fabric with a photothermal effect. The method first loads a photothermal preparation on the surface of the fabric to impart photothermal properties, and then introduces a composite coating formed by hydrophobic silica nanoparticles and a silane coupling agent with an alkane chain to reduce the surface energy of the material and construct a micro-nanoscale rough structure, thereby preparing an antibacterial fabric with excellent photothermal and super-hydrophobic properties. The super-hydrophobic antibacterial fabric prepared by the invention has a fabric surface water contact angle of 158° and a surface temperature of 120°C under near-infrared light irradiation, showing excellent photothermal cycle stability and super-hydrophobic high temperature resistance. The super-hydrophobic antibacterial fabric has an antibacterial rate of over 99.0% under the synergistic effect of passive super-hydrophobic antibacterial adhesion and active photothermal sterilization, and has a wide antibacterial range and a long antibacterial life.

The invention provides a photo-thermal super-hydrophobic composite membrane. The photo-thermal super-hydrophobic composite membrane comprises a PVDF (Polyvinylidene Fluoride) nanofiber base membrane, a photo-thermal layer and a hydrophobic layer, wherein the photo-thermal layer is attached to the PVDF nanofiber base membrane, and the hydrophobic layer is attached to the photo-thermal layer. The photo-thermal super-hydrophobic composite film disclosed by the invention has super-high hydrophobicity, excellent photo-thermal conversion performance, excellent stability and good self-cleaning performance, and can be used as an anti-icing film for various base materials.

The present invention discloses a preparation method of a photothermal super-hydrophobic coating with excellent anti-icing / de-icing performance under a low temperature and high relative humidity environment, first by in situ growth of photothermal Cu-MOF nanoparticles on the surface of low thermal conductivity fibrous clay mineral nanoparticles, constructing a two-level nano- / nano-structured composite photothermal particle, which is then subjected to low surface energy modification and introduced into a low thermal conductivity binder, and a binder is induced to phase separate to form a micron-scale binder / low surface energy nanoparticle aggregate by a non-solvent, and finally a photothermal super-hydrophobic coating with a three-level micro- / nano- / nano-structure is constructed by spraying. The three-level micro- / nano- / nano-structure of the coating simultaneously gives the coating excellent photothermal performance and the Cassie-Baxter state stability of the droplet on the coating surface under a low temperature and high relative humidity environment, so that it has excellent passive anti-icing / frosting and active de-icing / defrosting performance in this environment. The low thermal conductivity of the coating further suppresses the heat exchange between the substrate-water droplets, so that the passive anti-icing / frosting performance of the coating is further improved. In addition, the present invention has the advantages of simple preparation method and large-area preparation, laying a solid foundation for the practical application of photothermal superhydrophobic anti-icing coatings.

The invention relates to the technical field of metal organic framework functional materials, and discloses a ZIF-8-based super-hydrophobic MOF as well as a preparation method and application thereof. The preparation method of the ZIF-8-based super-hydrophobic MOF comprises the following steps: taking 2-methylimidazole and a fluorine-containing ligand FL as a mixed ligand, and carrying out coordination reaction on the mixed ligand and Zn ions to obtain a ZIF-8-FL material; the preparation method comprises the following steps: carrying out grafting modification on a ZIF-8-FL material and a modifier under the action of an acid-binding agent, so as to obtain the ZIF-8-based super-hydrophobic MOF; wherein the modifier is alkyl acyl chloride or fluorine-containing anhydride. The ZIF-8-based super-hydrophobic MOF is prepared by introducing the mixed ligand and grafting modification, the process is simple, the cost is low, and the method is suitable for large-scale production; the ZIF-8-based super-hydrophobic MOF prepared by the invention has high chemical stability and excellent hydrophobic performance in an acid environment, and the defect that a conventional MOFs material is easy to degrade is avoided; the oil-water separator has excellent separation efficiency and selectivity in the oil-water separation process, can effectively separate oil-water mixtures in various complex systems, and has wide market application prospects and economic benefits.

The invention discloses polyurethane resin with a super-hydrophobic surface and a preparation method of the polyurethane resin, and belongs to the technical field of modified polyurethane materials. According to the invention, 2, 2 '-diallyl bisphenol A and a fluorine-containing thiol monomer react to introduce a fluorine-containing carbon chain, and then fluorinated modified 2, 2'-diallyl bisphenol A and tetramethoxysilane are used for treating nano zinc oxide, so that the content of active oxygen groups is reduced, a siloxane network structure is formed, the action with water molecules is reduced, and the hydrophobicity is improved. Secondly, the 2, 2 '-diallyl bisphenol A reacts with amino propyl isobutyl POSS to generate a benzoxazine structure, the POSS structure is introduced, the nano-size effect of the benzoxazine structure fills limited movement between molecular chains, a cage-shaped structure serves as a cross-linking point, the mechanical property is improved, and hydrophobicity is achieved. When polyurethane is prepared, 3, 3-bis (hydroxymethyl) azetidine and a benzoxazine structure are subjected to ring opening crosslinking, bonding, dispersity and stability of fluorinated modified nanoparticles and a matrix are enhanced, a complex network structure is formed, the surface roughness is increased, the water contact area is reduced, and super-hydrophobicity is achieved.

A superhydrophobic self-luminous concrete material for 3D printing and a method for preparing the same, belonging to the field of building materials. The superhydrophobic self-luminous concrete includes: cement: 1000-1500 parts; quartz sand: 1000-1300 parts; silica fume: 50-100 parts; water: 300-400 parts; water reducing agent: 8-12 parts; cellulose ether: 1-2 parts; defoamer: 2-3 parts; fiber: 4-8 parts; luminous powder: 75-85 parts; reflective powder: 30-45 parts; metakaolin: 15-25 parts; metal filler: 0.015-0.040 parts; and a superhydrophobic coating. By combining 3D printing with the superhydrophobic self-luminous concrete material, the characteristics of energy saving, environment friendliness, high efficiency and low consumption of the 3D printing are highlighted, and the superhydrophobic self-luminous concrete material can be utilized to efficiently prepare fine and special-shaped components.

The invention discloses a wear-resistant super-hydrophobic heat-insulating coating material which is composed of a resin layer coated on the surface of a base material and HNTs / SiO2 composite aerogel covered on the surface of the resin layer, and the surface of the HNTs / SiO2 composite aerogel is hydrophobically modified by fluorosilane; the contact angle between the surface of the coating and water is 156-161 degrees, and the rolling angle of water drops on the surface of the coating is 3.2-6.4 degrees; the HNTs / SiO2 composite aerogel powder material has the functions of wear resistance, super-hydrophobicity and heat insulation at the same time and is firmly bonded with the resin layer, and the resin layer provides enough adhesive force; the halloysite nanotube (HNTs) / SiO2 composite aerogel is adopted, the defects that traditional SiO2 aerogel is low in strength and large in brittleness are overcome, the heat insulation effect of the coating can be further improved, and meanwhile the obtained super-hydrophobic coating further has super-high abrasion resistance and adhesive force.

The invention discloses an anti-icing wire, a manufacturing production line and a manufacturing method of the anti-icing wire. The anti-icing wire comprises a wire core; the inner-layer aluminum wire is arranged on the outer side of the wire core; the outer-layer aluminum wire is arranged on the outer side of the inner-layer aluminum wire; and the outer surface hydrophobic layer is made of a hydrophobic material and is arranged on the outer side of the outer-layer aluminum wire. The invention discloses a production line for manufacturing an anti-icing wire. The production line is provided with a first cleaning device, a wire sand blasting machine, a second cleaning device, a wire coiling device, a first spraying chamber, a first drying chamber, a second spraying chamber and a second drying chamber which are used for producing the anti-icing wire. The surface of the wire is coated with a large amount of hydrophobic materials, the capture rate of a power transmission line on supercooled water drops can be reduced, the adhesive force between ice and the coating can be reduced, the super-hydrophobic coating can delay freezing of the water drops on the surface of the coating, and therefore deicing or icing prevention is achieved. The anti-icing cable is especially suitable for being used in icing areas, and has a good anti-icing effect.

The present invention relates to a method for simultaneously achieving a superhydrophobic and superoleophobic surface on 5,000 series aluminum alloy in an anodic oxidation process without a pre-patterning step, wherein the uniform anodic oxide film can be produced even without a pre-patterning step, thus making it possible to reduce manufacturing costs, the anodic oxide film can be imparted with superhydrophobicity and superoleophobicity according to a coating composition in which a cross-linked PDMS derivative represented by chemical formula 1 and an organic solvent are used in a specific mixing ratio, the coating composition has a low manufacturing cost and the coating film thickness can be adjusted to several to several tens of nm, thus enabling application to the coating of a microstructured oxide film, and the method can be useful for creating a machine learning database for developing 5,000 series aluminum alloy surface treatment technology.

The present invention belongs to the technical field of coating protection, and discloses a wear-resistant micro-nano structure super-hydrophobic coating with photothermal effect and a preparation method thereof. The method comprises the following steps: spin coating a defoamed PDMS prepolymer and a curing agent mixture onto a substrate for pre-curing treatment; adding micron carbon black particles or nano carbon black particles with photothermal effect into an organic solvent for ultrasonic dispersion to obtain a dispersion; spraying a micron carbon black dispersion on the surface of a substrate coated with PDMS, and then spraying a nano carbon black dispersion to obtain a coating with a micro-nano structure and a photothermal effect; then spraying a layer of PDMS prepolymer and a curing agent mixture diluted with an organic solvent on the surface, and curing at low temperature to enhance the wear resistance and mechanical stability of the coating. The coating prepared by the present invention has good super-hydrophobicity and wear resistance and durability; the photothermal effect significantly increases the temperature of the substrate under the action of sunlight, and has good application prospects in anti-icing.

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.

The invention relates to a superhydrophobic and superoleophilic composite sponge material and the production method thereof. The material of the invention selectively removes petroleum-derived products, oily substances, and organic solvents in water. Additionally, said material has a high sorption capacity.