243 results about "Superhydrophobic coating" 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 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 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.

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 present invention discloses a composite wear-resistant superhydrophobic coating and a method for using the same. The composite wear-resistant superhydrophobic coating is composed of a surface layer material and a bottom layer material stacked. The bottom layer material includes a mixture of fluorocarbon resin and epoxy resin; the surface layer material includes hydrophobic modified ceramic microspheres, hydrophobic modified nanocellulose coated on the surface of the hydrophobic modified ceramic microspheres, and hydrophobic modified nanocellulose filled inside the hydrophobic modified ceramic microspheres; it has good superhydrophobic performance, strong adhesion, high hardness, and strong scrub resistance.

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 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 discloses a high-light-transmittance heat-insulation super-hydrophobic composite coating as well as a preparation method and application thereof, and relates to the technical field of coating preparation. The composite coating provided by the invention comprises a heat-insulating coating positioned on a bottom layer and a super-hydrophobic coating positioned on a top layer, wherein the heat-insulating coating comprises a binder and heat-insulating material particles dispersed in the binder; the super-hydrophobic coating comprises a micro-nano composite structure composed of modified silicon dioxide nanoparticles and fumed silica nanoparticles, the modified silicon dioxide nanoparticles are silicon dioxide nanoparticles which are prepared through hydrophobic treatment and have the particle size of 80-150 nm, and the mass ratio of the modified silicon dioxide nanoparticles to the fumed silica nanoparticles with the particle size of 15-30 nm is (0.2-0.4) g: (0.1-0.2) g; according to the composite coating provided by the invention, the light transmittance and the hydrophobicity of the composite coating are synergistically improved by regulating and controlling the proportion of silicon dioxide with different scales while the light transmittance, heat insulation and surface super-hydrophobicity are realized.

The invention discloses a super-hydrophobic surface anti-scouring testing device and a testing method, relates to the technical field of super-hydrophobic treatment, and solves the problem of lack of a super-hydrophobic coating anti-scouring performance testing device suitable for a laboratory. A water tank communicates with an air compressor and a water pump; an objective table is arranged at the bottom in the water tank, a linear nozzle is arranged at the top in the water tank, and the objective table is opposite to the linear nozzle; a ducted fan is arranged on the linear nozzle, and the ducted fan is used for blowing the test sample; a motor is arranged on the side wall of the water tank, and a lead screw is arranged at the output end of the motor and provided with a drainage block. The water pump communicates with the bottom of the water tank through a water inlet pipe and communicates with the linear nozzle through a water outlet pipe. According to the method, environmental variables are controlled, so that the test of the super-hydrophobic reagent is standardized and easy to operate; the device can provide super-hydrophobic reagent test conditions of an underwater scene to meet super-hydrophobic reagent development and test requirements of underwater navigation bodies, ships and other underwater equipment in actual research.

The invention relates to a photo-thermal super-hydrophobic coating and a preparation method thereof, and belongs to the technical field of super-hydrophobic coatings. A coating material adopted by the coating comprises the following components in parts by weight: 1 part of nano carbon black, 44 to 5 parts of nano Fe3O4, 2 to 4 parts of 1H, 1H, 2H, 2H-perfluorodecyl trimethoxysilane, 47 to 64 parts of absolute ethyl alcohol, 6 to 8 parts of epoxy resin, 1 to 2 parts of an epoxy resin curing agent and 9 to 18 parts of ethyl acetate; the particle size of the nano carbon black is 15 nm to 25 nm, and the particle size of the nano Fe3O4 is 160 nm to 240 nm; the coating is excellent in super-hydrophobic performance and good in photo-thermal performance and icing resistance, can well protect a base body in a severe environment, and is particularly suitable for being used as a surface coating of a fan blade used in the severe environment. According to the method, the coating material is prepared into suspension liquid, the suspension liquid is sprayed on the base body, the coating surface is uniform, the method is suitable for any base body in any shape, the process is simple, and operation is easy and convenient.

The invention discloses a preparation method of a composite anti-icing coating. The preparation method comprises the following steps: uniformly mixing a polymer base material and a super-hydrophobic nano component to obtain a composite super-hydrophobic coating; coating the surface of a substrate with the super-hydrophobic coating to form a composite super-hydrophobic base material; anti-icing particles are evenly settled on the surface of the composite super-hydrophobic base material, after the surface is dried, a rhombic reticulated knurling wheel is adopted for rolling on the surface of the composite super-hydrophobic base material, and concave and convex ridge structures are formed on the surface of the composite super-hydrophobic base material; and blowing and curing to form the super-hydrophobic composite anti-icing coating. A super-hydrophobic rough surface is constructed through a roll-formed concave-convex ridge ordered millimeter surface structure, so that the composite anti-icing coating disclosed by the invention has outstanding wear resistance, different anti-icing substances are compounded through embedded anti-icing particles, and the super-hydrophobicity and the anti-icing performance are further improved.

The invention discloses a super-hydrophobic waterborne polyurethane coating capable of realizing friction repair as well as a preparation method and application thereof, and relates to the technical field of coatings. The coating comprises the following components in percentage by mass: 5 wt.%-15 wt.% of hydrophobic modified nanoparticles, 15 wt.%-20 wt.% of porous diatomite, 30 wt.%-60 wt.% of waterborne polyurethane and the balance of water, wherein the sum of the mass percentages of the components is 100%; holes of diatomite are filled with hydrophobically modified nanoparticles to form diatomite capsules, and the hydrophobically modified nanoparticles are uniformly dispersed in a waterborne polyurethane emulsion by ingeniously utilizing the hydrophilicity of the surface of the diatomite, so that the uniformly and stably dispersed super-hydrophobic waterborne polyurethane coating is obtained. The super-hydrophobic coating prepared from the coating has friction repair performance.

The invention discloses a preparation method of a PVDF-Q-ZIF-67 / POTS membrane and application of the PVDF-Q-ZIF-67 / POTS membrane in treatment of radioactive waste liquid of a nuclear power plant, and the preparation method comprises the following steps: firstly, blending PVA (polyvinyl alcohol), Que (quercetin) and PVDF (polyvinylidene fluoride) for electrostatic spinning to obtain a PVDF-Q hydrophilic layer, then carrying out electrostatic spinning on the blended LiCl and PVDF to obtain a PVDF base membrane, and then carrying out electrostatic spinning on the PVDF base membrane by adopting ZIF-67, POTS (1H, 1H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H, 2H The method comprises the following steps of: coating a PVDF (Polyvinylidene Fluoride) base membrane with a ZIF-67 / POTS super-hydrophobic coating by using a PVDF-Q-ZIF-67 / POTS super-hydrophobic coating as a raw material, assembling to synthesize a PVDF-Q-ZIF-67 / POTS membrane, and finally introducing the radioactive waste liquid into a direct contact type membrane distillation device adopting the PVDF-Q-ZIF-67 / POTS membrane for treatment, so that the concentration of the radioactive waste liquid and the efficient separation of nuclides can be realized. The PVDF-Q-ZIF-67 / POTS membrane is applied to treatment of nuclear power station radioactive waste liquid, after direct contact type membrane distillation, the flux of the PVDF-Q-ZIF-67 / POTS membrane can be kept stable for a long time, the concentration multiple is high, the nuclide rejection rate is larger than or equal to 99.9%, and the PVDF-Q-ZIF-67 / POTS membrane is stable in chemical property, good in pollution resistance and good in application prospect in the fields of nuclear power stations, nuclear fuel plants and the like.

The present invention discloses a superhydrophobic anti-icing surface based on a super-elliptical topological structure and a preparation method thereof. The superhydrophobic anti-icing surface includes a super-elliptical topological structure substrate and a superhydrophobic coating; the micro-structure of the super-elliptical topological structure substrate has a protection function, protecting the internal superhydrophobic coating from being damaged by impact or worn by friction and becoming ineffective; the superhydrophobic coating has a nanostructure with intrinsic superhydrophobicity, which can reduce the solid-liquid contact area and weaken the solid-liquid heat transfer, thereby delaying icing and reducing ice adhesion, and having anti-icing performance. The superhydrophobic anti-icing surface of the present invention has long-lasting and mechanically robust superhydrophobicity. By using the super-elliptical topological micro-structure to protect the superhydrophobic nanostructure, the problems of poor mechanical robustness and non-abrasion resistance of the superhydrophobic surface are solved, and the long-lasting property and durability of the superhydrophobic surface are enhanced, and it can be applied to fields such as aerospace, energy, and transportation.

The invention belongs to the field of hydrophobic coatings, and particularly relates to a preparation method and application of a transparent super-hydrophobic coating, the preparation method comprises the following steps: blending a polyvinylidene fluoride-trifluoroethylene copolymer, PDMS and a solvent to obtain a spinning solution, and forming a super-hydrophobic transparent coating on the surface of a substrate by electrostatic spinning; the mass ratio of the polyvinylidene fluoride-trifluoroethylene copolymer to the PDMS is (1: 0)-(1: 10), and the concentration of the polyvinylidene fluoride-trifluoroethylene copolymer and the PDMS in the spinning solution is 5-30wt%. The accelerant layer and the cross-linking agent layer are formed on the substrate in advance, the cross-linking agent layer can increase the connection strength between the accelerant layer and the substrate, the cross-linking agent layer is cross-linked with the polyvinylidene fluoride-trifluoroethylene copolymer and PDMS in the electrostatic spinning solution, and the super-hydrophobic coating formed through electrostatic spinning is of a mutually cross-linked nanofiber structure, so that the super-hydrophobic coating has the advantages that the electrostatic spinning effect is good, and the service life of the super-hydrophobic coating is prolonged. The fibers are mutually crosslinked to form a net-shaped structure, and a large number of pores exist in the net-shaped structure, so that the super-hydrophobic coating with super-hydrophobicity and optical transparency is formed.

The invention belongs to the technical field of hydrophobic surface materials, and particularly relates to a method for constructing a super-hydrophobic surface based on amphipathic hollow silicon dioxide Janus nanoparticles, which comprises the following steps: constructing amphipathic Janus particles by using an adhesion polypeptide sequence of an obtained membrane as an adhesion end and 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane as a hydrophobic end; a rapid and efficient surface super-hydrophobic coating is successfully constructed, and the surface is endowed with antibacterial and anti-protein adhesion effects.

The invention discloses a wear-resistant transparent super-hydrophobic coating. The wear-resistant transparent super-hydrophobic coating comprises a transparent super-hydrophobic coating sprayed on the surface of a transparent substrate containing an etching groove, grooves which are uniformly distributed at intervals are formed in the surface of the transparent substrate containing the etching groove; the super-hydrophobic coating is obtained by spraying transparent super-hydrophobic SiO2-based dispersion liquid on the surface of a transparent substrate containing an etching groove, and the transparent super-hydrophobic SiO2-based dispersion liquid contains an alcohol solvent, alkali liquor, a silicon source, a silane coupling agent and a low-surface-energy modifier. According to the method, the surface of the transparent substrate is etched by adopting a laser etching process, and an improved transparent super-hydrophobic SiO2-based dispersion liquid and a spraying process are combined, so that the super-hydrophobic coating with good adhesion performance, wear resistance, hydrophobic performance and anti-reflection performance is constructed on the surface of the transparent substrate; the method can be applied to the fields of automobile glass, textile fabrics, oil-water separation, electronic communication and the like; and the related preparation process is simple, the reaction condition is mild, the method is environment-friendly, and large-scale popularization and application can be realized.

The invention discloses a durable super-hydrophobic composite filler, a preparation method and application thereof, a durable super-hydrophobic composite coating and a coating, and belongs to the technical field of composite micro-nano coatings. The preparation method comprises the following steps: 1) dispersing hydroxylated boron nitride particles with a first solvent, adding acid to adjust the particles to be acidic, then adding a silicon source, and growing micron-sized SiO2 on the surface of hydroxylated boron nitride in situ to obtain first-grade BN-coated SiO2 composite particles; and 2) dispersing the primary BN-coated SiO2 composite particles by a second solvent, adding alkali to adjust the primary BN-coated SiO2 composite particles to be alkaline, then adding a silicon source and a modifier, and growing nanoscale SiO2 on the surfaces of the primary BN-coated SiO2 composite particles in situ to obtain the durable super-hydrophobic composite filler. A super-hydrophobic coating prepared by applying the durable super-hydrophobic composite filler to a coating has the advantages of high mechanical property and excellent durability, the preparation process is simple and environment-friendly, and the preparation and application of the environment-friendly, large-scale and large-area super-hydrophobic coating are expected to be realized.

The invention relates to a melamine sponge with a chitosan-wheat straw biochar coating as well as a preparation method and application of the melamine sponge. The preparation method comprises the following steps: crushing wheat straws, and pyrolyzing under an anaerobic condition to obtain biochar; the biochar is soaked in a Prussian blue dispersion liquid for modification, and Prussian blue modified biochar is obtained; dispersing the material in a chitosan acetic acid solution for reaction to form a chitosan-charcoal composite system; adding PDMS (Polydimethylsiloxane) to carry out siloxane reaction to form stable composite sol; and finally, spraying the composite sol on the surface of the pretreated melamine sponge to form the super-hydrophobic coating. Through the synergistic effect of Prussian blue, chitosan and PDMS, the hydrophobicity and oil adsorption capacity of the material are remarkably improved, the water contact angle of the obtained sponge material can reach 168 degrees, the adsorption capacities to normal hexane and chloroform respectively reach 34 g / g and 80 g / g, and the sponge material has good cycle stability and wide application prospects in the fields of oil-water separation and environmental pollution treatment.

The invention discloses a preparation method of a wear-resistant photo-thermal super-hydrophobic coating, and the preparation method comprises the following steps: (1) adding SiO2 nanoparticles and a dispersant into deionized water for dispersion, then adding a fluorine-containing silane coupling agent, and fully stirring to obtain a fluorine-modified SiO2 dispersion liquid; (2) depositing candle ash, adding the obtained candle ash into the fluorine-modified SiO2 dispersion liquid, performing ultrasonic dispersion, and performing stirring reaction to obtain a super-hydrophobic coating; and (3) spraying the obtained super-hydrophobic coating on a pretreated base material, and drying to obtain the wear-resistant photo-thermal super-hydrophobic coating. The process method is simple, and the obtained coating has good photo-thermal performance, super-strong hydrophobic performance and abrasion resistance and excellent photo-thermal anti-icing performance.

The invention discloses a preparation method of a low-energy-consumption anti-icing / deicing super-hydrophobic coating, and belongs to the field of preparation of anti-icing coatings. The invention aims to solve the problems that the existing super-hydrophobic coating with the photo-thermal electric heating function adopts a fluorine-containing material as a raw material, and is poor in cycling stability and high in energy consumption. The method comprises the following steps: 1, preparing graphene slurry; 2, preparing an anti-icing / deicing super-hydrophobic coating solution; and 3, preparing the coating. The method is used for preparing the low-energy-consumption anti-icing / deicing super-hydrophobic coating.

The invention relates to the technical field of super-hydrophobic coatings, and provides a transparent super-hydrophobic coating and a preparation method thereof.The transparent super-hydrophobic coating sequentially comprises a bottom layer, a middle layer and a top layer from bottom to top; the bottom layer comprises the following raw materials: epoxy resin, a curing agent and a solvent in a mass ratio of 1: 0.5: (50-60); the middle layer is a coarse structure layer constructed by using candle ash; and the raw materials of the top layer comprise fluorine-containing silane and a solvent in a ratio of 1: 200-300. According to the technical scheme, the problem that the hydrophobicity of a coating in the prior art is poor is solved.

This invention discloses a method for preparing a fluorine-free superhydrophobic nano-silica cotton fabric, belonging to the field of superhydrophobic textile technology. The invention utilizes trichlorooctadecylsilane (OTS), γ-glycidyl etheroxypropyltrimethoxysilane (KH-560), and hexadecyltrimethoxysilane (HDTMS) to modify silica, obtaining a fluorine-free superhydrophobic coating. This coating, applied to the surface of the cotton fabric, results in a fabric with both low surface energy and a rough surface structure, exhibiting excellent superhydrophobic properties. Furthermore, it also imparts durability, self-cleaning, and stain-resistant capabilities to the hydrophobic coating.

The invention discloses a preparation method of a fluoride-free firm photo-thermal super-hydrophobic anti-icing coating, which comprises the following steps: S1, cleaning the surface of a base material: cleaning the surface of the base material by adopting one or more treatments such as abrasive paper polishing, alcohol and the like; s2, preparing a coating, namely mixing 100 parts of epoxy resin A and epoxy resin B, 6.2-36 parts of a PDMS prepolymer, 0.5-2 parts of a PDMS curing agent, 1-5 parts of carbon nanotubes, 40-50 parts of silicon dioxide and 250-300 parts of alcohol, stirring the mixed solution on a magnetic stirrer at a high speed for 20-50 minutes at room temperature, spraying a uniform suspension obtained by magnetic stirring onto a pre-treated base material, curing for 20-10 hours at room temperature to 110 DEG C, and drying to obtain the coating. The components of the prepared coating are fluoride-free components, the coating has a multi-stage micro-nano structure and a compact nano structure, the contact angle of the coating is larger than 150 degrees, meanwhile, the coating has mechanical and chemical stability, excellent liquid drop bounce performance and high-speed water flow puncture resistance, and the coating has the advantages of being green, environmentally friendly and suitable for large-area preparation; the method has remarkable progress in the field of preparation of super-hydrophobic coatings.

The invention discloses a light heating super-hydrophobic coating and a preparation method thereof, and relates to the technical field of hydrophobic paints.The light heating super-hydrophobic coating is composed of a modified fluorosilicone resin solution, a modified nanoscale carbon-based material, a functional additive, polypyrrole resin, an adhesion promoter and the like. The preparation method comprises the following steps: firstly, preparing fluorosilicone resin, introducing a benzoxazine monomer into a structure as an anticorrosive resin matrix to prepare a modified fluorosilicone resin solution, introducing a photo-thermal layer by adding a modified carbon-based material, and preparing a sprayable super-hydrophobic coating by combining hydrophobic silicon dioxide, a filler aid and the like; according to the coating, the characteristics of light energy conversion through lattice vibration of carbon black and carbon nano tubes and hydrophobicity of nano silicon dioxide are utilized, and polypyrrole is added into a resin system, so that the light heating performance of the coating and the ground surface energy of fluorine and silicon elements are further guaranteed, and benzoxazine resin is subjected to ring opening polymerization; and the coating has excellent corrosion resistance, wear resistance, weather resistance and the like.

The invention belongs to the field of coatings, and particularly discloses a super-hydrophobic organic coating as well as a preparation method and application thereof. The organic coating comprises the following components: organic resin and organic silicon modified composite particles; the mass ratio of the organic resin to the organic silicon modified composite particles is 1: (0.05-0.2); the composite particles contain nano diamond particles and a carbon material; the particle size of the carbon material is 1-30 [mu] m. A coating layer formed by the super-hydrophobic paint has the characteristics of super-hydrophobic performance and high hardness, the water contact angle of the coating layer is not less than 160 degrees, the water rolling angle of the coating layer is not more than 4 degrees, and the pencil hardness of the coating layer is 5H-7H. In addition, a coating formed by the coating has super-hydrophobic durability, specifically, after a friction experiment, the coating still keeps the super-hydrophobic capacity, the water contact angle is still larger than 150 degrees, and the coating has long service life during application.

The application provides a fluorine-free transparent super-hydrophobic coating and a preparation method and application thereof, and belongs to the technical field of coating materials. A three-dimensional network structure formed by self-assembly of a bisamidate derivative (1,4-di[(3,4-dioctyloxyphenyl)-bisamidyl]benzene, BPH-8) is used as a template, tetraethyl orthosilicate (TEOS) is used as a silica precursor to be adsorbed on the surface of the template to perform sol-gel polymerization to form silica with high transparency, then BPH-8 is removed by calcination to obtain a fibrous silica transparent surface, then octyltrichlorosilane is used for hydrophobic modification of the silica surface to obtain a transparent super-hydrophobic coating. The fluorine-free transparent super-hydrophobic coating prepared by the application has a water contact angle of 162.7°, a rolling angle less than 3°, an average visible light transmittance of 84.8%, and good self-cleaning capacity, and has potential application value in the fields of building glass, vehicle window glass, rearview mirror, optical lens, solar photovoltaic and the like.

The invention belongs to the technical field of nano materials and environment-friendly functional coatings, and discloses a preparation method and application of a lignin-based super-hydrophobic coating. The method comprises the steps that lignin is pretreated with ethylene carbonate to break steric hindrance and improve the grafting rate, then hexadecyl trimethoxy silane is added for grafting to form a hydrophobic chain, and surface energy is reduced; then adding silicon dioxide and N, N-dimethylformamide, carrying out ultrasonic dispersion to synergistically construct a micro-nano coarse structure, spraying the micro-nano coarse structure on a base material by using a spraying method, and putting the base material into a drying oven for curing, so as to obtain the lignin-based super-hydrophobic coating material. According to the method disclosed by the invention, a high-activity epoxy group is grafted on a lignin skeleton through ethylene carbonate pretreatment, so that steric hindrance in a three-dimensional space is broken, and dense anchor points are provided for a subsequent hydrophobic chain; then cocondensing with hexadecyl trimethoxy silane to form an alkyl-siloxane double network, and cooperating with nano silicon dioxide to construct micro-nano double roughness, so that a stable super-hydrophobic core under a fluorine-free condition is realized, and the technical route is simple and efficient.