30results about How to "Has super hydrophobic effect" patented technology

The invention discloses a polyvinylidene fluoride (PVDF) based micro-pore film and a preparation method thereof. The polyvinylidene fluoride based micro-pore film comprises a polyvinylidene fluoride micro-pore film provided with a supporting layer in the middle and a low-surface-energy substance coating on the surface of the polyvinylidene fluoride micro-pore film. The preparation method comprises the following steps: selecting two types of polymers, wherein one is polyvinylidene fluoride; dissolving the two polymers into a solvent system to prepare a polymer solution; adding a pore-forming agent into the polymer solution; after uniformly stirring, standing and de-foaming to obtain a film-forming solution; immersing the supporting layer into the film-forming solution to obtain a primary micro-pore film; dissolving and etching the other polymer from the primary micro-pore film to obtain a primary PVDF based micro-pore film; immersing the primary PVDF based micro-pore film into a finishing solution containing the low-surface-energy substance and drawing out from a roller to obtain the PVDF based micro-pore. The film-forming solution is prepared by selecting two types of the incompatible polymers and the surface of the porous film is coated with the low-surface-energy substance, so that a microcosmic rough structure is formed on the surface of the micro-pore film and the super-hydrophobic effect is achieved.

The invention discloses a preparation method of double-self-cleaning fabric. The method comprises steps as follows: 1, modified nano titanium dioxide is added to water; 2, the fabric is irradiated for treatment; 3, the fabric treated in the step 2 is soaked in a modified nano titanium dioxide water solution prepared in the step 1 and then taken out to be dried, and the self-cleaning fabric is obtained. The preparation method adopts a simple process, the cost is low, and industrial production is easily realized. The fabric prepared with the method has double self-cleaning effects including a photocatalytic self-cleaning effect and super-hydrophobic self-cleaning effect and has lasting photocatalytic activity.

The invention discloses a method for preparing a lyophobic heat conduction material with a micro-nano core-shell structure. The method comprises the following steps of: preparing micro-nano particles with different particle sizes by adopting a colloidal sol method at first; utilizing organic matters containing special functional groups to wrap the nano particles on microparticles because nano particle surfaces comprise hydroxyls, and thus obtaining composite particles with core-shell structures; and filling the composite particles into epoxy resin or organic silicon resin so as to prepare a packaging material with high thermal conductivity, super hydrophobicity, good heat resistance and thermal mechanical performance. Compared with a conventional particle filling packaging material or thermal interface material, the material has more excellent performances.

The invention discloses a deicing robot based on an automatic tensioning U-shaped heating mechanism, relates to the technical field of protection equipment for overhead power transmission cables, and solves the problem of deicing the existing deicing mechanism with strong binding force and thick ice layer. The problem of limited ice capacity, including the casing, on which the driving wheel and the driven wheel are installed, the driving motor and the worm gear mechanism are arranged inside the casing, the worm gear is arranged above the worm and meshed with the worm, and the worm wheel and the driving wheel pass through the transmission belt A Transmission connection, the front end of the worm sticks out of the casing and is connected with a rotating body that rotates with the rotation of the worm. The rotating body is equipped with a mechanical deicing mechanism, including a thermal deicing mechanism. The thermal deicing mechanism includes a stepping motor, a transmission belt B, The U-shaped heating plate and the shells symmetrically arranged on both sides of the transmission line can effectively remove the icing with strong binding force and thick ice layer, such as rain rime and mixed rime, and avoid thermal De-icing mechanisms are prone to damage to the interior of power lines due to sustained heat.

The invention discloses a super-hydrophobic chip for enrichment and condensation of molecules as well as a preparation method and an application thereof. The preparation method comprises the following steps: tackifying treatment of a silicon chip which is cleaned is carried out, photoresist is uniformly glued on a silicon chip, and baking is carried out; pre-positioning of the baked silicon chip is carried out for a pattern on a photoetching board and automatic para-position operation is carried out, after pre-positioning is carried out, exposure treatment is carried out, developing treatment is carried out, deep silicon etching treatment is carried out for the silicon chip, crystal film Au is injected on the silicon chip with a silicon column array structure by magnetron sputtering, in order to obtain a template material; graphite which is cleaned is used as a cathode, the template material is used as an anode, the cathode and the anode are placed in an electrodeposition solution in order to obtain a chip with a nanometer silver silicon column array structure, the chip is taken out and cleaned with clear water, and pure argon is used for blowing and drying. The super-hydrophobic chip for enrichment and condensation of molecules has the advantages of hypersensitiveness, fast response, and low loss rate of solvents.

The invention relates to the technical field of material surface engineering, in particular to a super-hydrophobic anti-fouling anti-icing water-based paint which comprises the following components in parts by weight: 10-15 parts of fluoride-grafted nano silicon dioxide on the surface, 40-60 parts of perfluorodecyltrimethoxysilane, 10-20 parts of carbon microspheres, 5-8 parts of modified graphene, 30-40 parts of binder and 100-150 parts of solvent. According to the super-hydrophobic anti-fouling anti-icing water-based paint, the super-hydrophobic material and the near-infrared photothermal material are added, so that the super-hydrophobic anti-fouling anti-icing water-based paint has the dual effects of super-hydrophobicity and photothermal deicing, and the near-infrared photothermal material is modified graphene which is a compound of graphene and CdS; and the super-hydrophobic material is very beneficial to formation of a rough micro-nano structure on the surface of the coating, so that the coating can obtain a larger static contact angle and a smaller rolling angle, the icing time of water drops on the surface of the coating is further prolonged, and a better anti-icing effect is achieved.

The invention discloses anti-fouling automobile interior fabric and a preparation method thereof, belonging to the field of automobiles. The preparation method comprises the steps of mixing silica nanospheres, a fluorine-containing acrylate copolymer, water-based isocyanate and water, and stirring to obtain finishing liquid; dipping automobile interior fabric into the finishing liquid, and sequentially rolling, drying and baking to obtain the anti-fouling automobile interior fabric; the mass fractions of the silica nanospheres, the fluorine-containing acrylate copolymer and the water-based isocyanate in the finishing liquid are respectively 0.2-1.2%, 1.5-8% and 0.1-0.72%. The finishing liquid used in the preparation method provided by the invention adopts the fluorine-containing acrylate copolymer as a main waterproof and oil-repellent substance; the water-based isocyanate is used as a crosslinking agent, so that the abrasion resistance of the surface layer of the anti-fouling automobile interior fabric is improved; the silica microspheres are used as a reinforcing component, so that the wear resistance of the anti-fouling automobile interior fabric is improved.

The invention relates to a method for preparing a sprayable super-hydrophobic coating with heat storage capacity. According to the method, mesoporous crosslinked polystyrene nanotubes and fluorated silicon dioxide pellets are dispersed into the volatile solvent dissolved with a tackiness agent and a phase-change material, and a blended spinning solution is sprayed onto a substrate material with aone-step method. By adoption of the method, the super-hydrophobic energy storage coating is prepared through the one-step spraying method, and the process of preparing composite phase-change materialsis omitted; and moreover, the heat storage capacity and super-hydrophobic performance are excellent, and a new road is opened up for practical preparation applications of the super-hydrophobic energystorage coating.

The invention discloses an automatic deicing mechanism for high-voltage lines with adjustable ice breaking position, relates to the technical field of protection equipment for overhead power transmission cables, and solves the problem that the distance between the cutter heads of the existing deicing mechanism cannot be adjusted or can only be disassembled and assembled at the construction site. The ice breaking position of the blade can only be adjusted under the condition of the machine structure, which includes the casing, the driving wheel and the driven wheel are installed on the casing, the driving motor and the worm gear mechanism are arranged in the casing, and the front end of the worm protrudes from the casing and is connected to a The rotating body rotates with the rotation of the worm. The rotating body is equipped with a mechanical deicing mechanism. The mechanical deicing mechanism includes a rotating column and a plurality of blades uniformly arranged radially along the rotating column. The rotating column is equipped with a blade for adjusting the locking position of the blade. The locking mechanism, through the implementation of this technical solution, can effectively avoid the problem that the distance between the cutter head of the deicing mechanism cannot be adjusted or the ice breaking position of the blade can only be adjusted when the whole machine structure is disassembled at the construction site, and it is suitable for removing ice with different diameters. Overhead lines covered with ice.

The invention discloses an automatic deicing device for overhead high-voltage transmission lines, relates to the technical field of overhead transmission cable protection equipment, and solves the problem that the distance between the cutter heads of the existing deicing mechanism cannot be adjusted or can only be disassembled and assembled at the construction site. The ice breaking position of the blade can only be adjusted under the condition of the machine structure, which includes the casing, the driving wheel and the driven wheel are installed on the casing, the driving motor and the worm gear mechanism are arranged in the casing, and the front end of the worm protrudes from the casing and is connected to a The rotating body rotates with the rotation of the worm. The rotating body is equipped with a mechanical deicing mechanism. The mechanical deicing mechanism includes a rotating column and a plurality of blades uniformly arranged radially along the rotating column. The rotating column is equipped with a blade for adjusting the locking position of the blade. The locking mechanism, through the implementation of this technical solution, can effectively avoid the problem that the distance between the cutter head of the deicing mechanism cannot be adjusted or the ice breaking position of the blade can only be adjusted when the whole machine structure is disassembled at the construction site, and it is suitable for removing ice with different diameters. Overhead lines covered with ice.

The invention discloses super-hydrophobic conductive leather and a preparation method thereof, and belongs to the technical field of intelligent leather products and flexible electronic skin. The preparation method comprises the steps of preparing positively charged polystyrene microspheres by adopting a dispersion polymerization method; and taking the polystyrene microsphere as a template, coating a titanium carbide nanosheet with negative electricity on the surface of the polystyrene microsphere through an electrostatic attraction effect between positive and negative charges, partially removing the template by utilizing an etching agent to obtain an amphiphilic titanium carbide nanosheet, filtering an amphiphilic titanium carbide nanosheet dispersion by taking leather as a filter, and drying to obtain the super-hydrophobic conductive leather. Hydrophilic and hydrophobic acting forces of the amphiphilic titanium carbide nanosheet drive the amphiphilic titanium carbide nanosheet to be directionally arranged on the surface of the leather in a manner that the hydrophilic end faces downwards and the hydrophobic end faces upwards, the titanium carbide nanosheets which are in contact with each other provide conductivity for the leather, hydrophobic chain segments on the titanium carbide nanosheets provide low surface energy required by super-hydrophobicity for the leather, the titanium carbide nanosheets and the hydrophobic chain segments have a synergistic effect, and the hydrophobic and conductive properties of the leather product are synchronously realized.

The invention provides a super-hydrophobic anticorrosive paint and a preparation method thereof, and belongs to the technical field of chemical paints, and the super-hydrophobic anticorrosive paint is a super-hydrophobic surface layer generated by an anticorrosive paint prepared from fluorocarbon resin and long-chain silane, so that the contact angle of water is greater than or equal to 150 degrees, the thickness exceeds 50 microns, and the super-hydrophobic anticorrosive paint has relatively strong durability; and the super-hydrophobic effect is achieved on the whole, and good economic benefits and social benefits are achieved.

The invention relates to the technical field of coatings, and discloses an environment-friendly superhydrophobic anti-impact epoxy resin powder coating and a preparation method thereof. The environment-friendly superhydrophobic anti-impact epoxy resin powder coating comprises the following raw materials in parts by weight: 70-80 parts of modified phenolic epoxy resin, 20-30 parts of nano-clay, 15-20 parts of carbon black, 10-20 parts of aluminum nitride micro-particles, 0.2-0.5 parts of zinc oxide, 0.2-0.5 parts of sodium pentachlorphenate, 0.5-1 part of 2,4-dihydroxybenzophenone, 1-2 parts ofborax and 0.2-0.5 parts of p-phenylenediamine. The environment-friendly superhydrophobic anti-impact epoxy resin powder coating provided by the invention has advantages of relatively good impact resistance, heat resistance and water resistance, and environmental protection.

The invention discloses a SiO2/PAA-b-PS amphiphilic Janus microsphere, a preparation method and application thereof, and belongs to the technical field of leather coatings. The SiO2/PAA-b-PS amphiphilic Janus microsphere is characterized in that one end of the surface of a SiO2 microsphere is modified with a hydrophilic group amino group, and the other end of the surface of the SiO2 microsphere is grafted with an amphiphilic block copolymer PAA-b-PS to provide an organic hydrophobic chain; SiO2/PAA-b-PS amphiphilic Janus microspheres are oriented and arranged on the surface of leather, an inorganic end faces a polyurethane prepolymer coating on the surface of the leather, an organic hydrophobic chain faces air, and the super-hydrophobicity of the coating is realized by utilizing a micro-nano rough structure constructed by the SiO2/PAA-b-PS amphiphilic Janus microspheres and a low-surface-energy substance provided by the organic hydrophobic chain segment; and the reactive group amino group at the inorganic end and the isocyanate group on the molecular chain of the polyurethane prepolymer generate chemical crosslinking while the polyurethane prepolymer generates adhesion to the SiO2/PAA-b-PS amphiphilic Janus microspheres, so that the wear resistance of the coating is improved.

The invention discloses an environment-friendly high-strength elastic coating for interior walls and a preparation method thereof, and the coating comprises the following raw materials in parts by weight: 50-100 parts of high-elastic acrylic emulsion, 5-20 parts of pure acrylic emulsion, 2-5 parts of sodium hexametaphosphate, 2-8 parts of a coalescing agent, 1-5 parts of ground calcium carbonate, 1-4 parts of cellulose ether, 1-2 parts of a multifunctional additive, 1-2 parts of a mildew preventive, 1-2 parts of a flatting agent, 1-2 parts of a thickening agent, 1-2 parts of a dispersing agent, 1-2 parts of a defoaming agent, 1-2 parts of an anti-freezing agent and 50-100 parts of water. After the coating is completely cured, the coating has enough strength to resist destructive power generated by the outside to the coating, the mechanical property is excellent, the adhesive force of the coating can be improved, the self-cleaning and hydrophobic capacity of the coating can be improved, the stability of the coating can be improved, meanwhile, the elasticity is excellent, the self-healing performance is achieved, and the good application prospect and economic benefits are achieved.