1031 results about "Fluorocarbon" patented technology

Improved performance ion exchange membranes for use in REM, AEM and DMFC fuel cells, buffered fuel cells, hydrolysis, other applications comprise a molecular matrix of homopolymers, di-monomer, heteropolymers, copolymers, or block-polymers of fluorocarbon and hydrocarbon compounds combined with (i) skeletal support grid to improve durability, handling, reduce membrane swelling, and sequester dopants and nanoparticles from leakage; (ii) microporous membrane formed using a sacrificial filler process enhancing conductivity and limiting fuel crossover; (iii) hetero-ionomeric matrix of two-or-more membrane-bound acids e.g. sulphonic and phosphonic acid expanding usable range; (iv) permanent fillers enhancing conductivity and porosity including nanoparticles, metal-oxides, zeolites, silicates, GOs, CNTs, MOFs, POSS, and others; (v) ionic liquid doping to enhance membrane conductivity; (vi) membrane nanocoating preventing H2O2 diffusion; and / or (vii) catalytic nanocoating with metals, metal-oxides, and MOFs preventing atmospheric toxin catalyst poisoning. Combined with a heterogenous GDI, the IEM is integrated into iBFC power blade and energy bank applications.

Provided are a nanocomposite polyurethane coating for aviation and a preparation method therefor. The coating is a product obtained by mixing a polyaspartic acid ester resin as a raw material with a fluorine-modified nano-SiO2 containing an active amine group and a fluorocarbon resin and reacting same. The nanocomposite polyurethane coating for aviation solves the problems of poor stain resistance, difficulty in cleaning, and poor toughness of existing aircraft skin coatings, and improves the toughness and ease of cleaning of the coating.

The invention discloses a coating as well as a preparation method and application thereof. The coating comprises the following raw materials: potassium silicate; ethyl orthosilicate; a nanometer titanium dioxide sol; rare earth is doped with nano titanium dioxide; compounding zinc oxide nanoparticles; nano silicon dioxide sol; a fluorosilane coupling agent; a fluorocarbon surfactant; a conductive carbon nanotube; nano aluminum oxide sol; an organic silicon modified acrylate emulsion; a boron nitride nanosheet; hollow glass beads; a shape memory polymer; the invention discloses a self-repairing nanofiber. After a coating is formed by using the coating, the coating has the characteristics of high light transmittance, good self-cleaning effect, high hardness, good adhesive force and excellent weather resistance, and can be applied to a photovoltaic module to replace an existing photovoltaic module coating product.

The invention belongs to the technical field of high polymer chemical materials, and particularly relates to a self-repairing composite waterproof board and a preparation method thereof. The invention relates to a high-temperature-resistant graphene coating which is prepared from the following raw materials: bisphenol A diglycidyl ether, fluorosilane modified nano SiO2, graphene slurry, polydimethylsiloxane, epoxy-terminated polydimethylsiloxane, a urea-formaldehyde prepolymer, a silane coupling agent, sodium dodecyl benzene sulfonate, an FSO-100 fluorocarbon surfactant, a CTBN adhesive, a curing agent, an epoxy accelerator DMP-30 and a diluent. Through the collaborative design of the gradient structure of the hard framework and the soft coating, low-surface-energy filler chemical anchoring, microcapsule local material supplementing and thermal triggering dynamic bond rearrangement, the board obtains balance among the bearing strength, long-term hydrophobicity, weather-proof barrier and repeatable thermal self-repairing; and meanwhile, the common defects that room-temperature self-repairing is difficult to realize, hydrophobic particles are easy to agglomerate, a coating is easy to layer and the like are avoided.

The invention relates to the technical field of battery materials, and particularly provides porous aluminum oxide powder applied to a lithium ion battery and a preparation method of the porous aluminum oxide powder. The porous alumina powder of the present application comprises: a porous alumina matrix, the aperture of which is gradually reduced from the surface to the center; the silane coupling agent modification layer covers at least part of the surface of the porous aluminum oxide matrix, and a silane coupling agent has a Si-O-Al bonded network structure; the fluorocarbon hydrophobic layer is coated on at least part of the surface of the silane coupling agent modification layer, and the fluorocarbon hydrophobic layer is of a perfluoroalkyl chain structure. According to the preparation method, the wettability, the interface stability and the moisture resistance of the electrolyte are synchronously improved through cooperation of a gradient aperture structure and silane-fluorocarbon double-layer modification.

The invention provides a modified lithium metal negative electrode and a preparation method and application thereof, and belongs to the technical field of lithium batteries. The modified lithium metal negative electrode comprises a negative electrode conductive substrate and an interface passivation layer formed on the surface of the negative electrode conductive substrate, and the interface passivation layer comprises lithium oxide, lithium sulfide, lithium nitride, lithium fluoride and a fluorocarbon compound; the interface passivation layer is obtained by putting lithium metal into chloroform for dipping treatment to obtain modified lithium metal and then performing plasma treatment. According to the lithium ion battery, the interface passivation film containing the lithium oxide, the lithium sulfide, the lithium nitride, the lithium fluoride and the fluorocarbon is formed on the negative electrode conductive substrate, and in the repeated charging and discharging process of the lithium ion battery, due to the existence of the interface passivation film, non-uniform deposition of lithium ions can be avoided, so that growth of lithium dendrites is inhibited. Furthermore, the coulombic efficiency and the cycling stability of the charge-discharge cycle of the lithium ion battery can be improved, and the service life of the lithium ion battery is prolonged.

The invention discloses a wear-resistant and high-temperature-resistant fluorocarbon powder coating and a preparation method thereof. Comprising the following steps: step 1, adding FEVE resin, a modified filler, a curing agent, a flatting agent and an antioxidant into a high-speed mixer, and mixing for 10-15 minutes until the materials are uniform to obtain a mixed raw material; and 2, transferring the mixed raw material into an extruder, extruding, tabletting, cooling, crushing, and screening with a standard sieve to obtain the fluorocarbon powder coating. The preparation method has the beneficial effects that the modified chitosan and the montmorillonite are compounded, the cerium salt is adopted for further modification, and after the obtained modified filler is added into a coating component, the wear resistance and the high-temperature resistance of a coating are remarkably improved.

The invention discloses a photoresist micro-lens array preparation method and system, and relates to the field of micro-nano optical device manufacturing. The preparation method of the photoresist micro-lens array comprises the following steps: carrying out chemical mechanical polishing treatment on a silicon wafer, spin-coating photoresist on a substrate to form a cylindrical array, and eliminating solvent gradient through pre-drying; forming a fluorocarbon nano film on the surface of the photoresist through plasma deposition so as to reduce the surface energy of the photoresist; realizing hot reflux of the photoresist based on gradient annealing, wherein the gradient annealing comprises a preheating section, a main reflux section and a stable section; on the basis of the preheating section, glass transition stress is avoided, fluorine-containing gas and inert gas are synchronously introduced into the main backflow section to act on a plasma sheath layer, so that the flowing direction of photoresist is regulated and controlled, and the edge coffee ring effect is inhibited; the stable section synchronously performs plasma assistance to lock the shape; and the precision and the consistency of the micro-lens array are improved through segmented temperature regulation and control and a plasma auxiliary technology.

The invention relates to the technical field of batteries, in particular to a gel electrolyte prepolymerization solution, a lithium battery and a preparation method of the lithium battery. The gel electrolyte prepolymerization liquid comprises the following components: an electrolyte which accounts for 70%-99% of the total mass of the gel electrolyte prepolymerization liquid; the cross-linking monomer accounts for 1%-10% of the total mass of the gel electrolyte prepolymerization liquid; an initiator accounting for 0.3-5% of the total mass of the crosslinking monomer; the fluorocarbon surfactant accounts for 0.01%-5% of the total mass of the gel electrolyte prepolymerization liquid, the fluorocarbon surfactant comprises a perfluoroalkyl chain CnF2n + 1, and n is larger than or equal to 6. According to the invention, the fluorocarbon surfactant is introduced into the gel electrolyte pre-polymerization liquid, so that the electrode / electrolyte interface composition and structure are improved, the wettability is improved, the interface stability is improved, the loss of the electrolyte is inhibited, the accumulation of by-products of the positive electrode under high voltage and in the circulation of the negative electrode is reduced, and the cycle life and the stability of the battery are remarkably improved.

An emulsion comprises a first discontinuous phase comprising first droplets, a second discontinuous phase comprising second droplets, and a continuous aqueous phase. The first droplets include at least one first surfactant and at least one first fluorocarbon, and have a first diameter of more than 100 nm. The second droplets include at least one surfactant, at least one drug, and at least one solvent, and have a second diameter of no more than 100 nm.

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

The invention relates to the technical field of polymer composite materials, and discloses a nano-ceramic-based composite insulating coating and a preparation method thereof, and the coating is prepared from a composite resin matrix, a composite functional ceramic filler, a double-reactivity organosilicon linker and an initiator. Wherein the composite resin matrix is composed of vinyl-terminated polydimethylsiloxane and a vinyl ether functionalized fluorocarbon copolymer, and a soft and rigid interpenetrating network structure is formed. The composite functional ceramic filler is prepared from needle-shaped silicon nitride, flaky hexagonal boron nitride, nano silicon dioxide, nano cerium oxide and nano barium titanate. According to the invention, a chemical bonding interface is constructed between the inorganic filler and the organic resin, and the synergistic effect of the composite matrix and the multifunctional filler is optimized, so that the coating has excellent adhesive force, flexibility and thermal shock resistance, obtains high volume resistivity and breakdown strength, and meets the insulation protection requirements under harsh working conditions.

The invention relates to the technical field of waterproof materials, and particularly discloses a high-elasticity waterproof emulsion and a preparation method thereof. The invention discloses a high-elasticity waterproof emulsion. The water-based paint is prepared from the following raw materials in parts by mass: 40 to 60 parts of modified acrylic resin emulsion, 25 to 40 parts of waterborne polyurethane, 3 to 6 parts of hydroxyethyl methylacrylate, 0.5 to 1 part of mercaptopropionic acid, 6 to 8 parts of fluorinated mica sheet, 3 to 6 parts of organic silicon emulsion, 2 to 4 parts of fluorocarbon surfactant, 0.8 to 1.5 parts of adipic dihydrazide, 0.3 to 0.8 part of dynamic cross-linking agent, 3 to 8 parts of compatilizer, 0.5 to 1 part of antioxidant, 0.5 to 1 part of anti-aging agent, 0.5 to 1.5 parts of defoaming agent and 40 to 55 parts of solvent. The modified acrylic resin emulsion is prepared from a monomer comprising diacetone acrylamide. The high-elasticity waterproof emulsion prepared by the invention has relatively good elasticity, waterproof performance and aging resistance.

The present invention relates to the field of cable technology, and discloses a flame-retardant and wear-resistant charging pile cable and a preparation method thereof. The charging pile cable prepared by the present invention comprises a cable core, a heat insulation layer, a shielding layer, and an outer sheath layer. The outer sheath layer is made of thermoplastic polyurethane elastomer as the main raw material, with the addition of maleic anhydride grafted POE, reinforcing fillers, and composite flame retardants and other functional additives, so that the cable has excellent flame retardant and wear resistance. Among them, the reinforcing filler utilizes the synergistic effect between hexagonal boron nitride and polyimide containing siloxane segments and long-chain fluorocarbon structures to improve the wear resistance of the outer sheath layer. The composite flame retardant has higher flame retardant efficiency than traditional inorganic flame retardants.

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 relates to the technical field of high polymer materials, and discloses a high-chemical-resistance TPO material which comprises the following components in parts by mass: 55-65 parts of polypropylene; 35 to 45 parts of a styrene-ethylene / butylene-styrene block copolymer; 0.4 to 0.6 part of a furan end-capping reagent; 0.2 to 0.4 part of a maleimide cross-linking agent; 4-6 parts of modified shell powder; 8 to 12 parts of epoxidized cardanol; 2-4 parts of a heat-sensitive microcapsule, wherein the heat-sensitive microcapsule comprises a shell layer and an inner core; and 0.5 to 1.5 parts of a nano cellulose surface treating agent. Through the synergistic effect of a dynamic cross-linked network and fluorocarbon chain surface modification, when the material is in contact with acid, alkali and an organic solvent, reversible cross-linked bonds release local stress through a fracture-reconstruction mechanism, and microcrack propagation is inhibited; and the compact fluorocarbon layer on the surface forms a chemical inert barrier, so that the permeation rate of a corrosive medium is remarkably reduced, and the structural stability and long-term durability of the material in a complex chemical environment are guaranteed.

The invention relates to the technical field of fluorination equipment, in particular to high-purity fluorocarbonate-based solvent purification equipment, which comprises a purification main body internally provided with a purification cavity; the liquefaction separation module is arranged at the top of the purification cavity and is used for exchanging heat with the crude gas entering the purification cavity, so that the crude gas is liquefied and then subjected to gas-liquid separation; the rotary crystallization module comprises a crystallization pond, a rotary crystal plate group and a collection assembly, the crystallization pond is arranged below the purification cavity and used for receiving the liquefied and separated liquid phase, the rotary crystal plate group partially extends into the crystallization pond, and the rotary crystal plate group continuously rotates, so that liquid in the crystallization pond is crystallized on the surface of the rotary crystal plate group; and then the crystals are collected by the collecting assembly after rotating to the upper part of the crystallizing pond. According to the purification equipment for the high-purity fluorocarbonic ester-based solvent, the high-purity fluorocarbonic ester-based solvent can be continuously obtained in a manner of liquefying and then continuously crystallizing and collecting, so that the purification equipment has a good industrial value.

A method for forming a high aspect ratio (HAR) structure during a HAR etch process, the method comprises sequentially or simultaneously exposing the substrate to a vapor of an etchant including one or more hydrofluorocarbon or fluorocarbon compounds or one or more hydrogen-containing molecules and an additive compound, the substrate having a film disposed thereon and a patterned mask layer disposed on the film; activating a plasma to produce activated one or more hydrofluorocarbon or fluorocarbon compounds or activated one or more hydrogen-containing molecules and an activated additive compound; and allowing an etching reaction to proceed between the film uncovered by the patterned mask layer and the activated hydrofluorocarbon or fluorocarbon compounds or the activated one or more hydrogen-containing molecules and the activated additive compound to selectively etch the film from the patterned mask layer, thereby forming the HAR patterned structure.

The invention relates to the field of paint, in particular to metal anti-corrosion paint based on modified graphene and a preparation method of the metal anti-corrosion paint. The metal anticorrosive paint based on the modified graphene is prepared from the following raw materials: waterborne epoxy resin, fluorocarbon resin, the modified graphene, a compound functional agent, a dispersing agent, a flatting agent, a defoaming agent, an anti-settling agent and the like. The finally prepared metal anticorrosive paint containing modified graphene not only has excellent wear resistance, thermal stability and the like, but also can greatly improve the dispersity and compatibility of the modified graphene material in the system, and effectively avoids the phenomena of precipitation, phase splitting and mass agglomeration of the graphene material in the anticorrosive paint system; and the long-term corrosion resistance and mechanical properties of the coating are further balanced.

The invention relates to a preparation method of core-shell nanoparticles with photo-thermal-phase change dual functions and intracellular delivery application of the core-shell nanoparticles, and belongs to the field of nano materials and cell delivery. The invention provides a photothermal-phase change bifunctional core-shell nanoparticle applied to intracellular delivery of biomacromolecules, the nanoparticle is of a core-shell structure, a high-molecular polymer is taken as a shell, liquid fluorocarbon and a photothermal material are taken as a core, the nanoparticle is prepared by an ultrasonic emulsification method, and the preparation method is simple. The boiling point of the liquid fluorocarbon is low, and the photo-thermal material has good photo-thermal conversion performance, so that the core-shell nanoparticles can quickly generate photo-thermal steam microbubbles under laser induction. Under the synergistic effect of laser and core-shell nanoparticles, generated steam microbubbles are induced to generate micropores in plant cell walls and cell membranes or animal cell membranes, so that the physical barrier of the cell walls and the cell membranes is overcome, and the efficiency of delivering exogenous functional biomacromolecules into cells is remarkably improved.

The invention relates to the technical field of functional coatings, in particular to a graphene reinforced heavy-duty epoxy coating for a marine environment. The invention discloses a graphene-based epoxy resin coating which is prepared from the following raw materials in parts by weight: 60-80 parts of bisphenol A epoxy resin, 5-10 parts of aminated graphene-carbon nanotube composite powder, 3-6 parts of zinc-aluminum-cerium ternary composite phosphate, 3-6 parts of nano boron nitride / silicon dioxide core-shell particles, 15-25 parts of a polyamide-epoxy curing agent, 1-3 parts of a silane coupling agent KH-560 and 5-8 parts of cashew nut shell oil modified phenolic aldehyde amine. The anti-rust paint is prepared from the following components in parts by weight: 0.5-2 parts of carboxylated graphene quantum dots, 2-4 parts of organic montmorillonite, 0.1-0.5 part of a fluorocarbon surfactant, 8-15 parts of a composite anti-rust pigment and 10-20 parts of an organic solvent. The coating is excellent in corrosion resistance, capable of resisting marine corrosion for a long time, resistant to high temperature and resistant to cathodic disbonding, has the functions of aging tracing and biological adhesion resistance, is convenient to construct and stable in performance, and provides reliable protection for ocean engineering.

The invention belongs to the technical field of fluorine-containing fine chemical synthesis, and particularly relates to an oxa-hydrofluoroether compound and a synthesis method and application thereof. The invention relates to an oxa-hydrofluoroether compound, the structure of the oxa-hydrofluoroether compound is shown as a formula (1): # imgabs0 #, in which Rf is F or CF3; r is methyl or ethyl; n is an integer from 1 to 3; according to the oxa hydrofluoroether compound disclosed by the invention, oxygen atoms are embedded into a fluorocarbon chain structure, so that fluorine-containing chain segments of hydrofluoroether are more diversified, and the structure is not limited by a perfluorocarbon chain structure any more; according to the oxa-hydrofluoroether compound, oxygen atoms play a role in reducing surface tension, and the more the oxygen atoms are, the lower the surface tension is; compared with other hydrofluoroether solvents, the hydrofluoroether solvent has higher permeability and better cleaning effect; according to the oxa-hydrofluoroether compound, on one hand, oxygen atoms are embedded into a fluorocarbon chain structure, and on the other hand, the fluorocarbon chain contains branched chains, so that the oxa-hydrofluoroether compound is easy to degrade, and the environmental friendliness is improved.

The invention relates to the technical field of functional coatings, in particular to an environment-friendly water-based strippable coating and a preparation method thereof.The environment-friendly water-based strippable coating is prepared from, by mass, 25%-45% of film-forming resin, 8%-20% of a stripping functional component, 10%-25% of a filler system, 3%-8% of a functional additive and the balance water, the stripping functional component is a ternary system of a wax emulsion, organic silicon modified acrylate and a fluorocarbon modified polymer, through collaborative design of the components, controllable stripping, no residue and no damage of a coating on various base materials such as metal, plastic and glass are achieved, meanwhile, the coating has excellent water resistance, weather resistance and environmental protection performance, and the coating can be widely applied to various substrates such as metal, plastic, glass and the like. The method is suitable for temporary protection in the fields of automobiles, electronics, precise instruments and the like.

The invention discloses a fracturing imbibition system for refracturing a low-permeability tight oil reservoir and a preparation method of the fracturing imbibition system, and belongs to the technical field of fracturing fluids, the fracturing imbibition system comprises: an acid liquid base fluid: hydrochloric acid, hydrofluoric acid, EDTMPS and deionized water; an amphoteric betaine viscoelastic surfactant; biologically modifying the nanoparticles; a Gemini cationic surface active agent; a corrosion inhibitor; and an organic silicon defoaming agent and a fluorocarbon discharge aiding agent. According to the fracturing imbibition system, through the integrated design of the multifunctional surfactant, the problems that a traditional acid fracturing fluid is insufficient in silicate mineral dissolving capacity, high-temperature viscosity is attenuated, and corrosion inhibitor dependence is caused are solved.

The invention relates to the technical field of cables, and discloses a flame-retardant wear-resistant charging pile cable and a preparation method thereof. The charging pile cable prepared by the invention comprises the cable core, the heat insulation layer, the shielding layer and the outer sheath layer, the outer sheath layer is prepared by taking a thermoplastic polyurethane elastomer as a main raw material and adding functional aids such as maleic anhydride grafted POE, a reinforcing filler and a composite flame retardant, so that the cable has excellent flame retardance and wear resistance; wherein the reinforcing filler utilizes the synergistic effect between hexagonal boron nitride and polyimide containing a siloxane chain segment and a long-chain fluoroalkyl structure, so that the wear resistance of the outer sheath layer is improved; compared with a traditional inorganic flame retardant, the composite flame retardant is higher in flame retardant efficiency.

The invention relates to the technical field of medical materials, in particular to a self-lubricating PEBAX / TPU material suitable for a medical catheter and a preparation process of the self-lubricating PEBAX / TPU material. 8-15 parts of a self-lubricating modified material; 1.5 to 3 parts of an antioxidant complexing agent; and 3-5 parts of a compatilizer. According to the self-lubricating PEBAX / TPU material, fluorocarbon chains are enriched on the surface to form a long-acting low-friction layer through fluorinated polyethylene and hydrophobic nano silicon dioxide, an external coating is not needed, an antioxidant Irganox 1010 and carbodiimide synergistically inhibit oxidation and hydrolysis, the chemical stability is remarkably improved, the compatibility of PEBAX / TPU is improved through maleic anhydride grafted POE, and the self-lubricating PEBAX / TPU material has the advantages that the self-lubricating performance is good; the rigid gradient of the conduit is optimized by combining a multi-layer co-extrusion process, the protein adsorption resistance of the surface is further enhanced through plasma treatment and perfluorosilane grafting, the integrity of the material is guaranteed through accurately controlled low-temperature extrusion and low-dose gamma sterilization, and the material is more stable and reliable while the biological safety is maintained. The synergistic improvement of the lubrication durability, the mechanical property and the aging resistance is realized.

The invention discloses a UV varnish applied to a PVC edge band and a preparation process thereof, and relates to the technical field of paints.The UV varnish comprises, by mass, 15-35% of hydroxyl polyester acrylate, 5-10% of a curing agent, 1-5% of a curing agent, 1-5% of a curing agent, 1-5% of a curing agent, and the balance of water. 15-35% of aliphatic polyurethane resin with 3-4 functional groups; 15-25% of an active monomer; 0.2-0.5% of a wetting dispersant; 0.5-1% of a dispersant; 0.2%-0.5% of a defoaming agent; 0.1 to 0.2 percent of a flatting agent; 0.5%-0.8% of a fluorocarbon modified leveling agent; 3.5 to 5% of a photoinitiator; 0.5%-2.2% of a functional auxiliary agent; 5-15% of a matting agent; and 0.5-1% of nano aluminum oxide. According to the UV varnish, the flexibility reaches grade 1, the adhesive force reaches grade 0, the yellowing resistance E * is 1.0-1.5 (grade 1), and after a cold and hot cycle test, a paint film is free of cracks, bubbles, gloss loss and the like.

The invention relates to the technical field of coatings, and discloses a polysilazane-graphene composite electrical equipment insulating and pressure-resistant protective coating and a preparation method thereof. The flame-retardant coating is prepared from the following raw materials in parts by mass: 30 to 50 parts of polysilazane, 3 to 5 parts of telomer, 1 to 3 parts of synergist, 4 to 5 parts of modified silicon dioxide, 4 to 5 parts of modified graphene, 1.5 to 2 parts of multiwalled carbon nanotube, 0.5 to 2 parts of modified zinc oxide, 1 to 2 parts of fluorocarbon surfactant and 130 to 230 parts of tetrahydrofuran. By introducing the telomer, the adhesive force of the coating on a rusty surface is effectively improved, and the properties of high temperature resistance, insulation and pressure resistance, flame retardance, water resistance, ice condensation resistance and the like are enhanced; by introducing the synergist, the modified silicon dioxide, the modified graphene, the multi-walled carbon nanotubes and the modified zinc oxide, the protection capability is further improved. Therefore, the coating disclosed by the invention is excellent in comprehensive protection performance, can meet the long-term operation requirement of power equipment in a complex and severe environment, and is wide in application prospect.

The invention discloses a glass etching device for laser induction and a fluoride-free etching method, and belongs to the technical field of glass etching.The etching device comprises an etching tank and an oil bath heating device, the etching speed can be increased by heating alkaline fluoride-free etching liquid, and the etching efficiency is improved. A composite stirring system of a magnetic stirrer and a stirring paddle can enable the fluoride-free etching liquid to circularly flow, so that the etching uniformity is improved, and the etching reaction is more favorably and stably carried out; the fluoride-free etching method adopts fluoride-free etching liquid, does not contain hydrofluoric acid, is safe and environment-friendly, and can avoid deterioration of through hole characteristics. Under the action of the fluorocarbon surfactant, the etching liquid has excellent wettability, and sodium hydroxide and potassium hydroxide in the etching liquid can perform high-selectivity etching on the glass after laser induction; the glass subjected to fluoride-free etching is high in surface smoothness and higher in through hole roundness, the surface and the inner wall of the through hole are smooth, the roughness of the inner wall of the through hole is smaller than 1 micron, the taper of the through hole is smaller, and a good etching effect is achieved.

The invention discloses a high-weather-resistance fluorocarbon powder coating as well as a preparation method and application thereof in the field of functional polymer materials. The coating disclosed by the invention takes a fluorine-containing polyurethane grafted polytetrafluoroethylene copolymer and phosphorus-silicon synergistic modified nano clay as core modification components. Wherein the fluorine-containing polyurethane grafted polytetrafluoroethylene copolymer is polymerized with monomers such as fluorine-containing diol and isocyanate through a polytetrafluoroethylene emulsion under the protection of nitrogen to form a fluorocarbon-polyurethane double-main-chain structure, so that the crosslinking density and the photooxidation resistance are improved; phosphorus-silicon synergistic modified nano clay is subjected to interlayer intercalation, phosphorus source modification and silane coupling agent treatment to form a physical barrier layer, enhance interface bonding and hinder water vapor permeation. The formula of the coating further comprises an HDI tripolymer curing agent, rutile type titanium dioxide and other pigments and fillers and auxiliaries. The preparation method comprises the following steps: premixing all the components, extruding by double screws, tabletting and crushing, and carrying out jet milling. The product can be applied to the surface of a metal workpiece, and the weather resistance of the product in an extreme environment is remarkably improved.