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195results about How to "Strong adhesion" patented technology

A gravure printing ink composition and a method for preparing the same

This invention discloses a gravure printing ink composition and its preparation method. The ink, by weight, comprises: 15-35 parts chlorinated polypropylene, 10-20 parts EVA-40W, 4-8 parts rosin-modified resin, 0.3-0.8 parts polyketide resin, 0.1-0.3 parts chlorinated ether resin MP45, 0.3-0.8 parts silica, 0.05-0.15 parts antistatic agent, 0.2-0.5 parts dispersant, 0.1-0.3 parts modified aluminum silicate AM660, 8-12 parts benzidine yellow, 6-10 parts fast red BHXL-T, 3-5 parts permanent orange yellow No. 13, 3-7 parts calcium powder, and 30-50 parts mixed solvent. During preparation, each resin is pre-dissolved separately, then mixed with pigments, additives, etc., and ground to a fineness ≤15μm. The ink of this invention has bright colors, good light resistance, excellent adhesion, antistatic properties, and printability, and is particularly suitable for gravure printing on polyolefin films.
Owner:HENAN ZICHEN NEW MATERIALS CO LTD

Water-based corrosion and rust prevention coating and preparation method thereof

This invention relates to the field of anti-corrosion coating technology, specifically to a water-based corrosion-inhibiting anti-corrosion coating and its preparation method. When zinc phosphate is used alone as a corrosion inhibitor in water-based anti-corrosion coatings, it tends to agglomerate and has poor compatibility with resins. The protective coating formed on the metal surface by these water-based anti-corrosion coatings exhibits poor and unstable corrosion resistance. To address these problems, this invention provides a water-based corrosion-inhibiting anti-corrosion coating composed of two components, A and B. Component A contains a self-made composite corrosion inhibitor, ZnP-PEG-IPTS-GO. This composite corrosion inhibitor, through the bridging of IPTS, chemically bonds GO, PEG, and zinc phosphate, achieving an organic combination of "physical shielding" and "active passivation," significantly improving the overall anti-corrosion performance of the coating.
Owner:CHANGZHOU GUANGHUI CHEM

Environment-friendly soft type yoga mat special screen printing ink and preparation method thereof

PendingCN122103960AResolve restricted issuesLow VOC contentInksShock absorber matsScreen printingBenzene
The application discloses an environmentally-friendly soft type yoga mat special silk-screen printing ink and a preparation method thereof, and belongs to the technical field of silk-screen printing inks. The ink comprises the following components in parts by weight: 30-50 parts of main body resin, 5-15 parts of environmentally-friendly pigment, 25-45 parts of environmentally-friendly composite solvent, 1-5 parts of adhesion promoter, 0.5-2 parts of rheological additive, 0.5-2 parts of scratch-resistant additive, and 2-8 parts of environmentally-friendly non-ortho phenyl plasticizer. The ink is extremely environmentally-friendly, meets international export standards, and is free of phthalate plasticizers, benzophenone solvents and heavy metal pigments in the whole process. Instead, the ink uses citric acid ester non-ortho phenyl plasticizers, benzene-free and ketone-free composite solvents and heavy metal-free organic pigments. The VOC content is far lower than the national limit value, the irritating odor is eliminated, and phthalate controlled substances are not detected. The ink meets the EU REACH regulation appendix XVII 51 / 52 and the EN71-3 toy safety standard, and completely solves the problem of limited export of traditional inks.
Owner:JIUJIANG XINCHENG SPORTS GOODS CO LTD

Method for extracting diatom high-viscosity extracellular polysaccharide and application thereof

The application belongs to the technical field of water biological treatment, and particularly relates to a method for extracting high-viscosity extracellular polysaccharides of diatom and application thereof. The method comprises weak acid / weak base buffer system cyclic regulation and ultrasonic-assisted sodium bicarbonate system mild extraction. The weak acid / weak base buffer system cyclic regulation is a cycle of acid stimulation-recovery period-alkali stimulation, and the diatom precipitate is cyclically treated to induce the diatom to secrete extracellular polysaccharides with stable structure and acid and alkali resistance. The ultrasonic-assisted sodium bicarbonate system mild extraction is ultrasonic treatment of the diatom precipitate to efficiently release the extracellular matrix under mild conditions. The extracted extracellular polysaccharides have high molecular integrity, stable structure, significantly improved functional group retention rate, and can maintain stable adhesion performance in acid and alkali environments. The method solves the problems of poor structural integrity of the extracted diatom extracellular polysaccharides, inability to retain adhesion activity and generally insufficient performance in the prior art.
Owner:SANYA INST OF OCEANOGRAPHY OCEAN UNIV OF CHINA

Anti-static and anti-abnormal-sound coating for durable automobile sealing strip and preparation method of anti-static and anti-abnormal-sound coating

The invention discloses an anti-static and anti-abnormal-sound coating for a durable automobile sealing strip and a preparation method of the anti-static and anti-abnormal-sound coating in the field of functional coating materials. The coating is prepared from hydroxy acrylic resin, two special functional fillers, auxiliaries and a solvent. Wherein the vinyl functionalized polypyrrole-silver nanowire hybrid conductive fiber provides a lasting static dissipation path, and the epoxy siloxane grafted perfluoropolyether solid lubricating particles provide long-acting lubrication through chemical bonding so as to eliminate abnormal sound. When the coating is prepared, the resin and the adhesion promoter are dissolved in the mixed solvent to form a resin liquid, then the two functional fillers and the lubricating additive are added after being pre-dispersed, and finally the mixture and the cross-linking agent are mixed and cured. The coating is firmly attached to the surface of the sealing strip through chemical bonding and endows the sealing strip with stable and lasting anti-static, noise-reducing and wear-resisting performance, and the process is simple and convenient and suitable for large-scale production.
Owner:SHANDONG JUNANG NEW MATERIAL TECH CO LTD

Metal card flat ironing machine

The invention relates to a metal card flat ironing machine which comprises a rack, a feeding device, a hot stamping device, a cleaning device, a collecting device and a conveying device. The hot stamping device comprises a hot stamping module, an X-axis driving mechanism used for driving the hot stamping module to move in the X-axis direction and a Y-axis driving mechanism used for driving the hot stamping module to move in the Y-axis direction. The hot stamping module comprises a support, a coloring belt feeding mechanism and a hot stamping mechanism, wherein the coloring belt feeding mechanism and the hot stamping mechanism are arranged on the support. The hot stamping mechanism comprises a hot stamping head and a Z-axis driving mechanism used for driving the hot stamping head to ascend and descend. A coloring belt sent out by the coloring belt feeding mechanism penetrates through the position between the hot stamping head and the metal card to be subjected to hot stamping in the conveying device. According to the metal card flat ironing machine, self-adaptive adjustment of the position of the hot stamping module can be achieved, hot stamping machining of metal cards of different varieties and different specifications can be compatible, and then the diversified and customized surface decoration machining requirements of the metal cards are met.
Owner:GUANGZHOU MINGSEN TECH CO LTD

Two-component epoxy low-surface-energy primer-topcoat paint and preparation method thereof

PendingCN121975398ASolve the problem of reduced adhesionEliminate multi-layer construction processEpoxy resin coatingsPolymer scienceOrganic solvent
The invention relates to a two-component epoxy low-surface-energy primer-topcoat paint which is composed of an agent A and an agent B. The agent A comprises the following components in parts by weight: 150 parts of epoxy resin; 50 to 100 parts of a low surface energy filler; 50-100 parts by volume of a filler; 10 to 20 parts of pigment; 1 to 5 parts of a polymethyl alkyl siloxane defoaming agent; 3-10 parts of a low surface energy auxiliary agent; 30-60 parts of an organic solvent; the agent B is an amine epoxy curing agent; when in use, the mixing weight ratio of the agent A to the agent B is 200: (10-20); in conclusion, the two-component epoxy low-surface-energy primer-topcoat paint provided by the invention can solve the problem that the adhesive force of a traditional coating is reduced due to enrichment of low-surface-energy components on a surface layer through epoxy resin compounding, gradient distribution design of the low-surface-energy components and synergistic filling of multi-stage fillers; the double functions of corrosion prevention and low surface energy can be achieved through single-pass coating, and the coating is suitable for high-altitude, offshore and other complex working conditions.
Owner:SHENZHEN QIONGBA WATERPROOF TECH CO LTD

A superhydrophobic coating combining a solvent-free anti-corrosion primer and its preparation method

ActiveCN117683384BExcellent hydrophobic and oleophobic propertiesExtended service lifeAnti-corrosive paintsEpoxy resin coatings
This invention discloses a superhydrophobic and oleophobic coating combined with a solvent-free anti-corrosion primer and its preparation method. The superhydrophobic and oleophobic coating includes a solvent-free anti-corrosion primer layer, an intermediate paint layer, and a topcoat layer. The solvent-free anti-corrosion primer layer includes epoxy resin, butyl glycidyl ether, pigments, fillers, and additives. The intermediate paint layer includes fluorocarbon resin, diluent, pigments, fillers, and additives. The topcoat layer includes fumed silica and ethanol. This invention, through the mutual compatibility and synergistic effect of the primer layer, intermediate paint layer, and superhydrophobic topcoat layer, enables the overall coating to not only exhibit excellent hydrophobic and oleophobic properties but also possess long-lasting anti-corrosion performance, extending the service life of the metal substrate. It also improves the hydrophobic and oleophobic stability of the superhydrophobic and oleophobic coating, showing promising application prospects.
Owner:WUHAN SUNENG NEW MATERIAL CO LTD

Anthracene methylphenthiazide for use in photosensitive resin compositions and its applications

ActiveCN120987873Binhibit migrationInhibit migration crystallizationOrganic chemistryInks
This invention provides anthracene methylphenthiazide for use in photosensitive resin compositions, relating to the field of photopolymerization. The invention also includes photosensitive resin compositions containing the anthracene methylphenthiazide, photosensitive dry films containing the anthracene methylphenthiazide, and their applications. The anthracene methylphenthiazide of this invention is photosensitizing and can be used as a photosensitizer in photosensitive resin compositions. It also enhances the adhesion of photosensitive resin compositions to various metal surfaces and exhibits low migration characteristics; it can be widely used in photocuring fields such as dry films, paints, coatings, inks, and molding materials.
Owner:HUNAN INITIAL NEW MATERIALS CO LTD

Fireproof insulating paint and preparation method thereof

The invention discloses a fireproof insulating coating and a preparation method thereof, and belongs to the technical field of fireproof coatings. The fireproof insulating paint comprises the following raw materials in parts by weight: 35-40 parts of pure acrylic emulsion, 20-25 parts of epoxy resin, 5-10 parts of a curing agent, 0.5-1 part of a curing accelerator, 5-8 parts of a flame retardant, 6-8 parts of a reinforcing modifier, 5-8 parts of silicon dioxide, 8-10 parts of hollow glass beads, 0.5-1 part of a dispersing agent, 0.3-0.5 part of a defoaming agent and 20-30 parts of deionized water. The fireproof insulating paint prepared by the invention has excellent adhesive force, hardness, flame retardant property and insulating property.
Owner:XIAMEN JINSHANG RESIN CO LTD

A nickel-plated steel sheet with excellent corrosion resistance for battery casing and its manufacturing method.

This invention relates to a nickel-plated steel sheet with excellent corrosion resistance for battery casings and a method for manufacturing the same. In one specific embodiment, the nickel-plated steel sheet comprises: a base steel sheet; a nickel plating layer formed on at least one surface of the base steel sheet; and a nickel-iron diffusion layer formed between the base steel sheet and the nickel plating layer. The nickel plating layer and the nickel-iron (Ni-Fe) diffusion layer are formed by heat treatment after forming an electroplated nickel layer on the base steel sheet and a chemically plated nickel layer on at least a portion of the surface of the electroplated nickel layer. The nickel plating layer contains one or more vacancy elements selected from phosphorus (P), boron (B), tungsten (W), cobalt (Co), molybdenum (Mo), and copper (Cu) on its surface.
Owner:TCC STEEL

An antibacterial composite coating based on quaternized nano zinc oxide, its preparation method and application

This invention discloses a method for preparing and applying an antibacterial composite coating based on quaternized zinc oxide nanoparticles. The preparation method includes: grafting quaternary ammonium salt compounds onto the surface of zinc oxide nanoparticles to prepare synergistic antibacterial nanoparticles; modifying the substrate surface by co-deposition of dopamine and polyethyleneimine to introduce active functional groups; and spraying or dipping the quaternized zinc oxide nanoparticles onto the modified substrate surface to obtain the antibacterial composite coating. This novel antibacterial material preparation scheme can integrate the advantages of zinc oxide nanoparticles and quaternary ammonium salts, while solving key technical problems such as nanoparticle aggregation, weak interfacial bonding, and limited antibacterial efficiency. It is of great significance for promoting the upgrading of hygiene and safety in the fields of medicine, food, and building materials.
Owner:XIAN INT UNIV

Preparation process of self-cleaning FEVE varnish

ActiveCN118580730BGood alkali resistanceLow VOC contentCoatingsPolymer scienceWeather resistance
The application belongs to the technical field of industrial coatings, and discloses a preparation process of self-cleaning FEVE varnish. The preparation process of the self-cleaning FEVE varnish comprises the following steps: (1) preparing a protective latex emulsion; (2) adding a wetting agent and a defoaming agent; (3) adding a composite sol; (4) adding FEVE resin, then adding a curing agent, and preparing the self-cleaning FEVE varnish after aging. The self-cleaning FEVE varnish prepared by the preparation process of the self-cleaning FEVE varnish has excellent adhesion, high weather resistance and good self-cleaning performance, and can be widely applied to building outer walls, transportation equipment, ocean facilities, urban public facilities and the like.
Owner:HUBEI ZHONGGANG METAL MFG CO LTD

A powder coating suitable for laser curing and a method of making and using the same

PendingCN122213820Ahigh surface glossImprove flatnessAnti-corrosive paintsPowdery paints
The application relates to the technical field of powder coating, in particular to a powder coating suitable for laser curing and a preparation method and application thereof. The powder coating for laser curing comprises the following components in parts by weight: resin, curing agent and heat-conducting agent, and other components; the mass ratio of the resin, the curing agent and the heat-conducting agent is 50-90:510:510; the heat-conducting agent is selected from two or more of graphene oxide, nano-aluminum oxide, carbon nanotubes, aluminum nitride and hexagonal boron nitride. The powder coating for laser curing of the application has excellent surface gloss, flatness and substrate adhesion after laser curing, and has good chemical corrosion resistance, and can realize a curing effect equivalent to that of current conventional thermal curing, and has significant application value in the fields of decoration and protection.
Owner:GUANGDONG UNIV OF TECH

Dual-curing conformal coating as well as preparation method and application thereof

The invention relates to the technical field of coatings, in particular to dual-curing conformal coating as well as a preparation method and application thereof. The dual-curing three-proofing paint is composed of siloxane containing oxazolidinyl groups, a UV oligomer containing isocyanate groups, a diluting monomer, a water removal agent, a photoinitiator, a wetting agent, a catalyst and the like. Wherein the siloxane containing the oxazolidinyl group has two functional groups of long carbon chain oxazolidine and siloxane, the long carbon chain oxazolidine can realize rapid moisture curing of oligomer and does not generate volatile harmful substances, and meanwhile, hydrolysis residues of the long carbon chain oxazolidine can plasticize the conformal coating and reduce adhesion loss caused by shrinkage. On the other hand, siloxane groups can form a stronger physical or chemical action with a base material, so that the adhesive force to the base material is improved. In conclusion, the three-proofing paint has excellent low surface tension and high wettability, can effectively wet the polluted surface of the PCB and form interaction, has the characteristics of excellent adhesive force, salt mist resistance, high flexibility and the like, and has very high market application value.
Owner:FUJIAN HUAXIALAN NEW MATERIAL TECH CO LTD

An insulating material for preparing porous copper foil and its preparation method; a method for preparing porous copper foil.

PendingCN122080564ABest anti-blind hole performancestrong adhesionElectroforming processesOrganic insulatorsElectrolytic agentReactive diluent
This invention relates to the field of insulating materials for porous copper foil preparation, and particularly to an insulating material for porous copper foil preparation and its preparation method, as well as a method for preparing porous copper foil. The preparation method includes the following steps: perforating a cathode plate to obtain a cathode plate with multiple blind holes; filling the blind holes with an insulating material for porous copper foil preparation, and curing it to obtain a pretreated cathode plate; the raw materials for the insulating material are: resin, reactive diluent, thixotropic agent, leveling agent, polymerization inhibitor, and photoinitiator. The pretreated cathode plate is used as the cathode and placed in an electrolyte for electrodeposition to obtain porous copper foil. When preparing porous copper foil with the insulating material, the filling material in the blind holes can withstand more than 80 electroplating cycles without peeling off, indicating that the insulating material for porous copper foil preparation possesses excellent adhesion and electrolyte environment durability, enabling a single-filled cathode to support stable electrodeposition over an ultra-long period, significantly extending its effective service life.
Owner:JIUJIANG TELFORD ELECTRONICS MATERIAL CO LTD

Color-developable waterborne polyurethane dust suppressant and preparation method thereof

The invention discloses a color-developable waterborne polyurethane dust suppressant and a preparation method thereof, and belongs to the technical field of dust suppressant preparation, the color-developable waterborne polyurethane dust suppressant comprises the following components by weight: 5-20 parts of waterborne polyurethane, 1-10 parts of latex powder, 0.5-5 parts of organic wax, 0.5-5 parts of color paste, 0.5-3 parts of paper pulp, 0.5-3 parts of a thickener, 0.1-0.5 part of an auxiliary agent, 5-10 parts of a film forming auxiliary agent, and 70-90 parts of water. According to the dust suppressant, waterborne polyurethane serves as a film forming substance and can be combined with coal particles to form a film layer of 1 mm-2 mm, a formed cured film is high in strength, good in toughness and high in adhesive force, pulverized coal particles can be effectively isolated, wind and rain erosion can be resisted, the dust suppression period is long, certain hydrophobicity is achieved, the dust suppressant is not prone to being washed away, the service life is greatly prolonged, and the dust suppressant is suitable for being popularized and used. And the dust suppressant takes water as a dispersion medium, the VOC content is extremely low, the selected coloring agent is environment-friendly, no pollution is caused to soil and underground water, and the development direction of green chemistry is met.
Owner:NANJING ZHIYUAN HIGH-TECH MATERIALS TECHNOLOGY CO LTD

Self-cleaning anticorrosive coating and preparation method thereof

The application discloses a kind of self-cleaning anticorrosive paint and preparation method thereof, belong to coating technical field.The application can significantly improve the anticorrosive effect of primer by adding modified zinc powder and capsule type functional additives in primer, and epoxy modified polyurethane resin and partial chloroethylene-acrylic acid copolymer are compounded as the film-forming resin of primer, and the adhesion promoter is added, which effectively improves the adhesion of primer and metal substrate.In addition, the topcoat of the application uses fluorocarbon resin as the film-forming base material, combines hydrophobic modified nanosilica with surface modifier, can build stable super-hydrophobic structure on the surface of coating, realize efficient self-cleaning;At the same time, the synergistic effect of zirconium phosphate and lanthanum oxide added in the topcoat can not only enhance the wear resistance and weather resistance of the coating, but also inhibit the aging failure of hydrophobic components, ensure the long-term stability of self-cleaning performance, reduce the cost of manual cleaning, as a whole, the formed coating system has excellent adhesion, self-cleaning and anticorrosion effect.
Owner:FOSHAN HUANG GUAN CHEM IND CO LTD

Tackifying emulsion as well as preparation method and application thereof

PendingCN121779932AImprove stabilitySolve the problem of easy phase separationMacromolecular adhesive additivesCoatings
The invention discloses tackifying emulsion as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The tackifying emulsion comprises the following components in percentage by weight: 45-70% of a tackifying polymer D, 0.5-5% of a dispersing agent and the balance of water, wherein the polymer B is prepared from divinyl benzene, phenol and an alpha-methyl styrene oligomer through a reaction, and the polymer C is prepared from triisobutylene and a divinyl ester compound through a reaction. The emulsion provided by the invention has excellent high and low temperature resistance stability, freeze-thaw stability and wide temperature range applicability, and solves the problems of easy phase separation and narrow use temperature range of the traditional petroleum resin tackifying emulsion.
Owner:HENGHE MATERIALS & SCI TECH CO LTD

A thermosetting polyimide and a method for preparing and using the same

PendingCN122587205Aimprove performanceHigh mechanical strength of coating film
The application discloses a thermosetting polyimide and a preparation and application method thereof. The thermosetting polyimide resin has good performance, good heat resistance, high mechanical strength of a coating film and strong adhesion, and comprises the following steps: step 01, stirring and dissolving aromatic diamine into an organic solvent under the condition of nitrogen or argon and at 0 DEG C; step 02, adding aromatic dianhydride into the solution obtained in step 01, stirring for 2-4 hours at 30-35 DEG C, and mixing the solution; step 03, adding a blocking agent into the mixed solution obtained in step 02, and stirring for 16-18 hours; step 04, adding a dehydrating agent into the solution obtained in step 03, and refluxing for 4-6 hours at 150-200 DEG C to obtain a polyimide resin solution; step 05, mixing the polyimide resin solution obtained in step 04 with a cleaning agent to precipitate a solid; and step 06, heat-imidizing the solid obtained in step 05 to obtain the thermosetting polyimide resin.
Owner:ZIGONG ZHONGTIANSHENG NEW MATERIAL TECH CO LTD

A formulation and preparation method of an exosome-based skin medication

This invention provides a formulation and preparation method for an exosome-based skin medication. Taking the preparation of a 100g finished formulation as an example, it consists of active ingredients, a nanogel carrier, a composite stabilizer, a moisturizer, a pH adjuster, a preservative, and deionized water. By constructing a nanogel sustained-release system adapted to exosomes and a composite protection mechanism, the exosomes are stably and slowly released and efficiently absorbed on the skin surface within 7 days. This solves the problems of rapid release, low utilization rate, poor stability, and frequent reapplication required for exosome-based skin medications, thereby improving the skin care and treatment effects of exosomes.
Owner:BEIJING EASENG MEDICAL SCI CO LTD

Copolymers, viscosity-reducing agents comprising the copolymers and positive electrode slurry compositions, positive electrodes comprising the positive electrode slurry compositions, and secondary batteries including the positive electrodes

This invention relates to a copolymer and a viscosity reducer comprising the copolymer, and more specifically, to a copolymer, a viscosity reducer comprising the copolymer, a positive electrode slurry composition, a positive electrode, and a secondary battery. The copolymer is capable of preparing a positive electrode slurry composition with low viscosity and excellent dispersibility, and is capable of preparing a positive electrode with excellent adhesion between the positive electrode active material and the current collector.
Owner:HANSOL CHEM

Via method for glass substrate, mini-led substrate and device

The application relates to a glass substrate via hole method, a Mini-LED substrate and a device. The glass substrate via hole method comprises the following steps: providing a glass substrate, the glass substrate having opposite A and B surfaces; performing laser treatment on the A surface to form pre-penetration array dots, and performing film coating treatment on the B surface to form a protective film; and performing via hole treatment on the glass substrate by using a first etching solution containing HF and H2SO4 to form a via hole extending from the pre-penetration array dots on the A surface to the B surface. The via hole method provided by the application can form a large number of via holes with regular hole shapes, uniform hole diameters and high via hole rates on the glass substrate.
Owner:HUBEI TONGGE MICROCIRCUIT TECH CO LTD

Use of a heteropoly compound / pva composite for water retention in sandy soil

ActiveCN117535058BWill not cause secondary pollutionHas the function of fixing sandAgriculture tools and machinesOther chemical processesSoil sciencePolyvinyl alcohol
This invention discloses the application of a heteropoly compound / PVA composite in water retention of sandy soil. The invention prepares the heteropoly compound / PVA composite by mixing polymer polyvinyl alcohol with a Standberg-type heteropoly compound or its derivatives, which is then used for water retention in sandy soil. The heteropoly compound / PVA composite of this invention can significantly improve the water and fertilizer retention capacity of sandy soil, and has high adhesion ability. It can withstand strong winds in arid regions, is not easily blown away and loses its effectiveness, and will not disperse into the air causing particulate pollution. After gradually losing water, the sand amendment forms a porous membrane on the surface of the gravel, maintaining the soil's aeration and permeability, and plays a positive role in the restoration of degraded soils in desert areas.
Owner:SOUTH CHINA UNIV OF TECH

Processing method for antiseptic treatment of heating radiator

The invention belongs to the technical field of heating radiator machining, and particularly relates to a heating radiator anti-corrosion treatment machining method which comprises the steps that S1, a to-be-machined heating radiator is subjected to polishing treatment, after surface oxide skin and burrs are removed, acid pickling, water washing and drying treatment are conducted in sequence, and a pretreated heating radiator is obtained; s2, the pretreated heating radiator is subjected to etching treatment through a micro-nano etching agent, washing and drying are conducted after etching, and an etched heating radiator is obtained; s3, the inner surface and the outer surface of the etched heating radiator are evenly coated with the silane coupling agent base coating liquid to form a coating, flash drying and low-temperature pre-curing treatment are conducted, and the surface-modified heating radiator is obtained; s4, within 60 min after flash drying and low-temperature pre-curing treatment are completed, fluorocarbon anti-corrosion paint is sprayed to the inner surface and the outer surface of the surface-modified heating radiator through the electrostatic spraying technology; and S5, the sprayed surface-modified heating radiator is placed in baking equipment, coating curing is conducted, the heating radiator is cooled to the room temperature, anti-corrosion machining is completed, double combination of physical occlusion and chemical bridging is achieved, and the adhesive force of the coating is improved.
Owner:SICHUAN AOFEIER TECHNOLOGY CO LTD

Optical fiber collimator, MEMS optical acceleration sensor and preparation method

The invention provides an optical fiber collimator, an MEMS optical acceleration sensor and a preparation method. The optical fiber collimator comprises a self-calibration coupling unit, a self-focusing collimation unit and a light beam steering adjusting unit. The self-calibration coupling unit is provided with an axial inner hole, and the self-focusing collimation unit and the light beam steering adjusting unit are both installed in the axial inner hole and are oppositely arranged. The first end face, facing the self-focusing collimation unit, of the light beam steering adjustment unit is not perpendicular to the axis of the axial inner hole. Light rays incident through the self-focusing collimation unit are reflected by the first end face to be turned and emitted out of the self-calibration coupling unit; the optical fiber collimator integrates the light beam steering and angle adjusting functions, after the system is installed, the direction of the emergent light beam can be optimized in real time by adjusting the light beam steering adjusting unit in the circumferential direction, and the installation difficulty is greatly reduced.
Owner:SHANGHAI BAIANTEK SENSING TECH CO LTD +1

Full-crosslinking layered fluorine-containing epoxy super-hydrophobic coating and preparation method thereof

The invention discloses a full-crosslinking layered fluorine-containing epoxy super-hydrophobic coating and a preparation method thereof, and belongs to the technical field of super-hydrophobic coatings. The coating comprises the following raw material components: epoxy resin, fluorine-containing epoxy acrylic resin, KH560 modified nano silicon dioxide, a curing agent, an accelerant and the like. The preparation method of the coating comprises the following steps: carrying out surface grafting modification on the nano silicon dioxide particles by using a KH560 siloxane coupling agent; the preparation method comprises the following steps: synthesizing fluorine-containing epoxy acrylate low-surface-energy resin by using tridecafluorooctyl methacrylate, glycidyl methacrylate and isobornyl methacrylate; the coating is prepared by adopting a step-by-step spraying method, the primer is epoxy resin, the surface wear-resistant super-hydrophobic layer is fluorine-containing epoxy acrylate low-surface-energy resin blended modified nano silicon dioxide particle filler, and the three components are integrally crosslinked through epoxy groups. According to the method, the adhesive force and durability of the coating can be improved, and the coating has good super-hydrophobic performance and is suitable for various working conditions.
Owner:HARBIN INST OF TECH +2

High-transmittance radiation refrigeration film and preparation method thereof

The invention discloses a preparation method of a high-transmittance radiation refrigeration film, which comprises the following steps: mixing a transparent resin matrix with a diluted monomer solution, adding an ultraviolet light absorber, a surface additive and a photoinitiator, and carrying out ultrasonic dispersion to obtain a coating liquid; the surface of a transparent polymer base material is coated with the coating liquid, and the coating liquid is irradiated and cured by 365nm ultraviolet light to form the radiation refrigeration film. The visible light transmittance of the obtained film is larger than or equal to 92%, the ultraviolet rejection rate is larger than or equal to 99%, the infrared emissivity in the atmosphere window wave band is larger than or equal to 0.90, and cooling can be effectively achieved through radiation heat dissipation. The surface of the film is hydrophobic, the water contact angle is larger than 90 degrees, and the film has potential self-cleaning maintaining capacity. The method is simple in process, can be quickly cured at room temperature, is suitable for large-area continuous production, and has the advantages of low cost and high industrialization potential.
Owner:NANJING UNIV +1

High-strength bolt machining process and device

The invention relates to the technical field of bolt production, and particularly discloses a high-strength bolt machining process and device. Comprising the following steps: S1, material selection: selecting an alloy steel blank containing C, Si, Mn, Cr, Mo, V and the balance of Fe; s2, cold heading forming is conducted, specifically, the alloy steel blank is placed in a multi-station cold heading machine, and a bolt blank is formed through continuous cold heading and forging; s3, heat treatment is conducted, specifically, the bolt blank is subjected to quenching treatment and then subjected to tempering treatment, and a bolt base body is obtained; and S4, surface treatment is conducted, specifically, phosphating treatment is conducted on the surface of the bolt base body in sequence to form a phosphating layer, the composite coating is coated, and the high-strength bolt is obtained. The high-strength bolt machining process can be used for manufacturing connecting components requiring high reliability under complex working conditions such as heavy load, vibration and impact, and the high-strength bolt machining process has the advantages that the toughness, fatigue resistance and delayed fracture resistance are improved while high strength is kept.
Owner:SHANGHAI HIGH STRENGTH BOLT FACTORY CO LTD

An anticorrosive electronic-grade coating agent and a preparation method thereof

This invention relates to the field of coating technology, specifically to an anti-corrosion electronic-grade coating agent and its preparation method. The anti-corrosion electronic-grade coating agent, by weight, comprises the following raw materials: 5-8 parts acrylate, 10-20 parts fluorinated acrylate, 9-11 parts fluorosilicone resin, 0.6-2 parts coupling agent, 0.06-1 part initiator, and 80-130 parts hydrofluoroether. The coating agent prepared by this invention exhibits excellent corrosion resistance, high adhesion, good insulation, and is safe to operate without a flash point.
Owner:KAIYI NEW MATERIAL TECH (SHANGHAI) CO LTD