541 results about "Superhydrophobe" patented technology

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 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 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 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 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 an anti-icing testing method, device and equipment for a super-hydrophobic surface structure of energy equipment and a storage medium, and relates to the technical field of super-hydrophobic surface testing. Designing a super-hydrophobic surface structure based on the environmental main control factor to obtain a structure parameter set; simulating the super-hydrophobic surface structure by using an environment load condition determined based on the environment working condition matrix and a structure parameter set to obtain an equipment critical vibration frequency, and determining a current surface structure morphology based on the structure parameter set and the equipment critical vibration frequency; and determining a morphology simulation error based on the current surface structure morphology and the actual surface structure morphology of the super-hydrophobic surface structure, and monitoring the super-hydrophobic surface structure based on the morphology simulation error, the structure parameter set, the equipment critical vibration frequency and the preset control mechanical excitation frequency to obtain the ice growth rate and the ice adhesion work. The efficiency of anti-icing testing of the super-hydrophobic surface structure is improved.

The application belongs to the technical field of functional coating materials, and particularly relates to a kind of super-hydrophobic solution based on fumed silica and its preparation method and application, comprising: step one, 20-200nm fumed silica nanoparticles are dispersed in ethanol / water mixed system, and sodium dodecyl benzene sulfonate is added to prevent agglomeration;Step two, under the catalysis of ammonia, tetraethyl orthosilicate and 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane are added dropwise in sequence for fluorination modification;Step three, fluorinated silica nanoparticle suspension is prepared by ultrasonic-assisted reaction;Step four, the solution is sprayed onto the surface of ceramic substrate with micro-nano structure to form a coating;Step five, strong adhesion without adhesive is realized by mechanical anchoring effect.The application realizes super-hydrophobic performance of 153±0.5° high water contact angle and physical adhesion stability under 100-200g load by the synergistic effect of nanoparticle size effect and substrate surface topological structure, low surface energy of fluorinated alkyl chain and Cassie-Baxter air cushion layer effect, and is especially suitable for self-cleaning surface, anti-icing coating and marine corrosion prevention field.

The invention discloses a preparation method of a photo-thermal super-hydrophobic material and a continuous recovery device and method for high-viscosity spilled oil on a water surface, and belongs to the technical field of spilled oil adsorption. The preparation method of the photo-thermal super-hydrophobic material comprises the following steps: selecting a waste textile fabric with compression-recovery performance as a raw material, firstly putting the waste textile fabric in an ethanol solution for ultrasonic treatment, then soaking the waste textile fabric in an aqueous solution containing Tris-HCl and dopamine hydrochloride, and oscillating at a constant temperature; the preparation method comprises the following steps of: soaking in a pyrrole aqueous solution, adding anhydrous FeCl3, oscillating at room temperature, and soaking in an aqueous solution containing Tris-HCl, dopamine hydrochloride and polyethyleneimine after pyrrole is completely polymerized; and finally, soaking in an ethyl acetate solution containing polydimethylsiloxane and a curing agent, and heating and curing after soaking to obtain the photo-thermal super-hydrophobic material. The material not only realizes efficient cyclic utilization of textile wastes, but also has excellent photo-thermal performance and compressible recovery performance under a high-viscosity-wet condition.

The application discloses a preparation method of a flexible super-hydrophobic anti-icing coating and relates to the technical field of super-hydrophobic materials.The preparation method comprises the following steps: preparing nano-silver loaded multi-layer graphene; mixing PVP solution and multi-layer graphene suspension uniformly, adding glucose, stirring uniformly, adding silver-ammonia solution to react when the suspension reaches a set temperature, centrifugally separating after the reaction is completed, obtaining the nano-silver loaded multi-layer graphene product, cleaning by using pure water or ethanol, and drying in an oven for standby; and preparing a flexible super-hydrophobic layer; smearing a mixture of PDMS and a PDMS curing agent on the surface of a glass sheet, uniformly spraying nano-loaded multi-layer graphene powder to the surface of the mixture of uncured PDMS and the PDMS curing agent by using an airbrush, and placing in an oven for curing to obtain the flexible super-hydrophobic anti-icing coating.The preparation method is simple and environment-friendly, can be used on a large scale, and can solve the problems of anti-icing and deicing on various surfaces.

The invention relates to an anti-icing super-hydrophobic coating for an aluminum conductor as well as a preparation method and application of the anti-icing super-hydrophobic coating. Single-ended epoxy fluorosilicone oil is grafted to the surface of an amino-functionalized metal organic framework material through an epoxy-amino ring-opening reaction to obtain a hydrophobically modified metal organic framework material, the hydrophobically modified metal organic framework material has a flexible fluorocarbon chain shell, and according to the design, the mechanical strength of a coating is enhanced through a rigid framework of MOFs; the stress concentration is relieved by utilizing the flexibility of a molecular chain of the fluorosilicone oil. The modified metal organic framework material is further dispersed in a matrix composed of fluorine-containing epoxy resin and an amino fluorosilicone oil curing agent, a multi-layer micro-nano structure is formed through ultrasonic dispersion and spraying curing processes, and the super-hydrophobic coating is obtained. According to the coating, through the synergistic effect of fluorosilane grafting modification and a micro-nano structure, the excellent performance that the static water contact angle is larger than or equal to 155 degrees, the rolling angle is smaller than or equal to 4 degrees, the ice adhesion strength is smaller than or equal to 40 kPa, and the wear resistance is excellent is achieved.

The invention discloses a super-hydrophobic chitosan aerogel PDMS (at) Co-PBA / CS and an application of the super-hydrophobic chitosan aerogel PDMS (at) Co-PBA / CS in oil-water separation. Adding Co-PBA into a chitosan aqueous solution, and then adding PVA; adding acetic acid and glutaraldehyde into the obtained mixed solution, stirring in a water bath, and freeze-drying to obtain Co-PBA / CS aerogel; and dissolving a hydrophobic material and a curing agent in an organic solvent, stirring to obtain a uniform suspension, immersing the Co-PBA / CS aerogel into the suspension, and carrying out vacuum drying to obtain PDMS-coated Co-PBA / CS. The super-hydrophobic chitosan aerogel PDMS (at) Co-PBA / CS prepared by the preparation method disclosed by the invention has relatively high adsorption capacity on both organic solvents and oil, and the removal efficiency is close to 100%. In addition, the composite material also has excellent self-cleaning and photo-thermal conversion performance, and can realize surface cleaning and removal of high-viscosity oil. The multifunctional aerogel provides a new strategy for removing pollutants such as oil in a complex and severe water environment.

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 technical field of super-hydrophobic material underwater stability evaluation, and particularly relates to a super-hydrophobic material liquid-gas interface stability testing device and a super-hydrophobic material liquid-gas interface stability testing method. Laser is irradiated to the surface of a super-hydrophobic material by utilizing the underwater silver mirror phenomenon of the super-hydrophobic material; the stability condition of an underwater gas film of the super-hydrophobic material is explored by measuring the illumination of reflected light, the stability of the super-hydrophobic material under the hydrostatic pressure is quantitatively represented, the relation between microstructure parameters of the super-hydrophobic material and hydrostatic pressure resistance is explored, and accurate evaluation of the liquid-gas interface stability of the super-hydrophobic material under the hydrostatic pressure is achieved. A theoretical basis is provided for designing an underwater high-stability super-hydrophobic material; the device is simple in structure, the method is convenient to operate, the design is rigorous and reliable, the application range is wide, the stability of the gas layer on the surface of the super-hydrophobic material can be quantitatively represented only by measuring the reflected illuminance of a liquid-gas interface, and the error of a test result is small.

The present invention discloses a preparation method of a ZIF-8-based photothermal superhydrophobic anti-corrosion and anti-icing coating, comprising the following steps: S1. Preparation of ZIF-8@PDA particles: Synthesize ZIF-8@PDA particles modified by polydopamine in one step in water; S2. Preparation of the ZIF-8-based photothermal superhydrophobic anti-corrosion and anti-icing coating: Compound and superhydrophobically modify ZIF-8@PDA and carbon materials in a certain proportion, add an adhesive, spray it on the surface of a substrate, and obtain the ZIF-8-based photothermal superhydrophobic anti-corrosion and anti-icing coating after curing. The ZIF-8-based photothermal superhydrophobic anti-corrosion and anti-icing coating material prepared by the present invention exhibits excellent superhydrophobicity, mechanical stability and corrosion resistance. At the same time, the ZIF-8-based photothermal superhydrophobic anti-corrosion coating exhibits excellent passive delayed icing and active photothermal de-icing capabilities on the surface of aluminum alloy. It provides a brand-new strategy for winter de-icing of industrial facilities and equipment.

The invention provides a directional moisture absorption and sweat releasing functional fabric and a preparation method thereof.The fabric comprises a sweat releasing and drying layer, a capillary moisture guiding layer and a hydrophilic moisture absorption layer from outside to inside, the hydrophilic moisture absorption layer is a cellulose acetate electrostatic spinning super-hydrophilic modified layer, the capillary moisture guiding layer is formed by weaving porous polyester yarn, and the hydrophilic moisture absorption layer is a super-hydrophilic modified cellulose acetate electrostatic spinning super-hydrophilic modified cellulose acetate electrostatic spinning super-hydrophilic modified cellulose acetate electrostatic spinning super-hydrophilic modified cellulose acetate electrostatic spinning super-hydrophilic modified fiber. The perspiration drying layer is a silane super-hydrophobic modified layer. Porous cross-section polyester fibers are prepared by adopting a washable template method, the moisture conductivity is improved, an electrostatic spinning cellulose acetate nanofiber membrane is subjected to super-hydrophilic modification, the sweat absorption rate is increased, the skin-friendly performance is improved, a sweat-releasing and drying layer is subjected to silane hydrolysis spraying and then heat treatment to form a super-hydrophobic siloxane coating, the surface dryness is enhanced, and the moisture absorption rate is increased. Unidirectional migration and rapid evaporation of sweat from inside to outside are achieved.

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 relates to the technical field of conductive coatings, and discloses a weather-resistant bio-based conductive coating based on water-based palm wax / shellac and a preparation method thereof, the weather-resistant bio-based conductive coating comprises the following raw materials by mass: 20-30 parts of a natural palm wax nano emulsion, 70-80 parts of a shellac ethanol solution, 1-3 parts of Tween 80, and 30-80 parts of a silver coated copper powder / carbon nanofiber composite material. According to the scheme, the super-hydrophobic barrier is constructed by introducing the water-based palm wax, the moisture absorption rate is reduced, electrochemical corrosion and stress stripping are effectively reduced, and the service life of a base material is prolonged. Meanwhile, lac is added in the scheme, a three-dimensional network structure is formed through crosslinking of the water-based palm wax emulsion and biomass hydroxyl, and the flexibility and moisture resistance of the coating are effectively improved. Specifically, according to the scheme, the water-based palm wax and the shellac are combined and used, so that the weather resistance of the coating is effectively improved, for example, the moisture absorption rate of the coating is reduced to 12% (ASTMD570 standard), and the flexibility of the coating is improved (the elongation at break gt; 50%), the moisture resistance is improved by 3 times (the water vapor permeability lt; 10 g / m < 2 >. Day).

The invention discloses an anti-aging bronze powder pigment and a preparation method and application thereof in the technical field of bronze powder pigments, and the anti-aging bronze powder pigment takes copper-zinc alloy as a base material, and is sequentially connected with a composite chemical passivation layer, a functionalized organic-inorganic hybrid compact barrier layer and a surface super-hydrophobic layer through chemical bonding from inside to outside; wherein the composite chemical passivation layer is formed by treating a passivation solution containing phytic acid, ammonium metavanadate and sodium tungstate; the functionalized organic-inorganic hybrid compact barrier layer is constructed by a silane mixed solution containing 3-mercaptopropyltriethoxysilane, a reaction type ultraviolet light absorber Si-BP, a reaction type hindered amine light stabilizer Si-HALS and tetraethyl orthosilicate through a sol-gel process. Through the design of a multi-layer composite system, the aging resistance of the bronze powder is improved, and meanwhile, the optical decoration performance can be reserved to the maximum extent, so that the dual strict requirements of high-end outdoor applications such as automobile coatings on durability and visual texture can be met.

A superhydrophobic multifunctional coating and a preparation method thereof are provided, which relate to the technical field of coating materials. The superhydrophobic multifunctional coating includes the following components in percentage by volume: 0.1-3.0% of hydrophobic composition, 1.5-12% of texture stabilizer, 17-60% of binder and 25-80% of alcohol-free substrate material. The multifunctional coating not only has the characteristics of high hydrophobicity, high wettability angle greater than or equal to 160+5 degrees, rolling angle less than or equal to 5 degrees, oleophobic property, chemical erosion medium resistance, chemical inertia, low surface tension and the like, but also does not need to pretreat materials, so that the surface physical and chemical characteristics of various materials can be improved.

The invention belongs to the technical field of hydrophobic testing, and particularly discloses a method and system for testing the weather resistance of a super-hydrophobic surface of energy equipment in a natural environment, and the method comprises the steps: collecting the characteristics of the natural environment where the energy equipment is located, constructing a natural environment coupling model, and matching a weather resistance threshold set of the super-hydrophobic surface of the energy equipment; establishing an appearance-wetting-chemical three-axis characteristic space, outputting a dimensionality signal set of the super-hydrophobic surface of the energy equipment, analyzing a failure probability factor, determining a weather fastness judgment early-warning level of the super-hydrophobic surface, collecting geometrical parameters of the super-hydrophobic surface of the energy equipment, establishing a physical constraint boundary, and combining the failure probability factor to judge the weather fastness of the super-hydrophobic surface. And performing energy equipment super-hydrophobic surface optimization feedback. By constructing the natural environment coupling model and the three-axis feature space, the weather resistance of the super-hydrophobic surface of the energy equipment can be comprehensively evaluated, and accurate early warning and optimized feedback are achieved.

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 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 Janus mesh for fog harvesting is a mesh with a superhydrophobic side and an opposed hydrophilic side. The Janus mesh is formed from a brass mesh with opposed first and second sides. The first side has the hydrophobic layer formed thereon and the second side has the hydrophilic layer formed thereon. The hydrophobic layer is formed from ZnO nanowires and stearic acid, and the hydrophilic layer is formed from just the ZnO nanowires. The Janus mesh is made by growing the ZnO nanowires on the first and second sides of the brass mesh using a calcining step. The first side of the brass mesh is sprayed with stearic acid to form the hydrophobic layer. The second side is treated with ultraviolet radiation to degrade any of the stearic acid that migrated to the second side via capillary action, thus forming the hydrophilic layer made from just the ZnO nanowires.

This invention relates to the field of polytetrafluoroethylene (ePTFE) membrane technology. Addressing the problem that existing expanded PTFE films cannot meet the high-performance standards of superhydrophobicity and superoleophobicity, this invention specifically discloses an expanded PTFE composite membrane and its preparation method. The expanded PTFE composite membrane includes an ePTFE base membrane and an fPTFE / SiO2 particle composite layer disposed on the surface of the ePTFE base membrane. The fPTFE / SiO2 particle composite layer includes a PTFE composite and SiO2 particles. The PTFE composite comprises polyethylene oxide and PTFE in a dry weight ratio of 1:10-30, and the SiO2 particles have a particle size of 100-1000 nm. By coating the ePTFE base membrane with PTFE and SiO2 particles to construct the fPTFE / SiO2 particle composite layer, and then modifying the membrane surface with silica-fluorination, the distribution of SiO2 particles can be specifically controlled to impart superhydrophobic and superoleophobic properties to the expanded PTFE composite membrane, with both water and oil contact angles >150°.

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 discloses a wear-resistant and anti-corrosion super-hydrophobic ice-resistant coating and application thereof, and belongs to the technical field of protective coatings. The coating is formed by sequentially compounding a microcosmic framework layer and a nano functional layer, wherein the microcosmic framework layer comprises epoxy resin, a curing agent, polyaniline and a microstructure material; the nano-scale functional layer comprises epoxy resin, polydimethylsiloxane, nano particles, nano # imgabs0 # and polyaniline; and the nano-scale functional layer comprises epoxy resin, polydimethylsiloxane, nano particles, nano # imgabs0 # and polyaniline. The coating disclosed by the invention has super-hydrophobicity, ice resistance, high wear resistance and long-acting corrosion resistance, and is suitable for base material protection in high-corrosion and low-temperature ice-condensation environments of ocean engineering, industrial equipment 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.

The invention discloses a super-hydrophobic coating based on a fluffy ZnO rod-PDMS, belonging to the technical field of super-hydrophobic coatings. A ZnO / polydimethylsiloxane (PDMS) layer is prepared by strictly controlling the ratio of ZnO and PDMS, a prepolymer A solution is added to a n-hexane solution and fully stirred, nano zinc oxide is added and fully stirred to make it uniformly mixed, a curing agent B solution is added and fully stirred, the mixed PDMS / ZnO nanoparticle solution is spin-coated on a glass slide, and the PDMS / ZnO nanoparticle substrate is prepared by curing; on this basis, staggered zinc oxide rods are prepared on the surface of a substrate by a hydrothermal method, and a fluffy microscopic surface coating is formed, after being modified by a FAS-17 solution, the super-hydrophobic coating has excellent self-cleaning performance, high acid and alkali corrosion resistance, and super-hydrophobic performance to various common liquids, and solves the problems of complicated preparation process, high material cost and poor long-term durability.

The invention belongs to the field of new materials, and particularly relates to a super-hydrophobic composite coating with mechanical firmness, self-cleaning property and high wear resistance, a method and application thereof. According to the preparation method, epoxy resin (E51) is adopted as a binder, quartz sand, modified F-TiO nano particles and SiO nano particles are combined, and the quartz sand / F-TiO / SiO coated EP super-hydrophobic composite coating of a double-layer structure is prepared through a simple and convenient blade coating-spraying process. According to the coating, through multi-scale hierarchical structure design and low surface energy modification, a static water contact angle of 151 degrees and 1t are achieved; the rolling angle of 5 degrees shows excellent self-cleaning performance on liquid and solid pollutants. A mechanical stability test shows that in a Taber abrasion test, the coating still keeps good hydrophobicity after being abraded for 3000 cycles under the load of 250 g and abraded for 600 cycles under the load of 750 g; after 500 times of adhesive tape stripping experiments, the static water contact angle is still greater than 120 degrees, the rolling angle is as low as 5 degrees, and excellent wear resistance and substrate adhesion are shown.

This invention provides a process for preparing a superhydrophobic surface of a titanium alloy plate using a laser assisted flow of ethanol. The process involves: rough milling the surface of the titanium alloy plate to remove the oxide layer; introducing flowing ethanol onto the milled surface; using a laser to pass through the flowing ethanol to fabricate a grid structure framework on the titanium alloy plate surface; removing impurities from the surface of the titanium alloy plate; and then modifying it with fluorosilane and performing heat treatment to achieve the superhydrophobic surface. This invention improves the hydrophobicity of the titanium alloy plate, making it easier to achieve superhydrophobicity, reducing water flow resistance, and improving water transport efficiency. Furthermore, this process is cost-effective, easy to control, and allows for stable automated production.