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73 results about "Photo curing" patented technology
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Multi-layer composite board, manufacturing process thereof, refrigerator door body and household appliance shell
PendingCN121179821ALamination ancillary operationsPolyureas/polyurethane adhesivesManufacturing technologyMetallic materials
The invention provides a multi-layer composite board and a manufacturing process thereof, a refrigerator door body and a household appliance shell, and relates to the technical field of composite materials. The invention provides a multi-layer composite board. The multi-layer composite board comprises a base board, a magnetic sheet and a bonding layer. And the substrate is made of a glass material. And the magnetic sheet is compounded on one side of the substrate and can be attracted with a metal material or a magnetic material. The bonding layer is arranged between the substrate and the magnetic sheet and is used for bonding the substrate and the magnetic sheet; the bonding layer comprises raw material components which can be formed through light curing. The multi-layer composite board provided by the invention has the characteristics of magnetic attraction and corrosion resistance, also has the characteristics of simple process, easiness in manufacturing and low energy consumption, and is relatively high in structural stability.
Owner:HISENSE(SHANDONG)REFRIGERATOR CO LTD
Rapid ultraviolet curing conductive silver paste for LTCC (Low Temperature Co-Fired Ceramic) and preparation method thereof
PendingCN120784027ANon-conductive material with dispersed conductive materialCable/conductor manufactureSilver pastePolymer science
The invention discloses rapid ultraviolet curing conductive silver paste for LTCC (Low Temperature Co-Fired Ceramic) and a preparation method of the rapid ultraviolet curing conductive silver paste. The rapid ultraviolet curing conductive silver paste comprises the following materials in parts by weight: 10-25 parts of prepolymer; 1-5 parts of a plasticizer; 60 to 85 parts of silver powder; 3-8 parts of glass powder; 0.5 to 2 parts of a photoinitiator; wherein the prepolymer is hyperbranched polyester acrylate, the branching degree of the hyperbranched polyester acrylate is 0.5-0.7, the hyperbranched polyester acrylate has a sea urchin-shaped structure, and the number-average molecular weight of the hyperbranched polyester acrylate is 16000-22000. The specific hyperbranched polyester acrylate is selected as a prepolymer and compounded with other components in a system according to a specific proportion, the prepared silver paste can be rapidly cured at room temperature under ultraviolet light and can be cured within 5 seconds, the viscosity of the paste is low, powder (silver powder and glass powder) is uniformly dispersed, printing processing is easy, the prepared silver paste is low in resistivity, and the silver paste has good application prospects. And the conductivity is good.
Owner:ZHEJIANG MOKE LASER INTELLIGENT EQUIP CO LTD
Water-based uv primer for floor and preparation method thereof
The application relates to the field of paint technology and discloses a water-based UV primer for floor and a preparation method thereof. The water-based UV primer is formed by mixing water-based UV polyurethane emulsion as a film-forming material, modified jute fiber, defoaming agent, thickening agent and the like as auxiliary materials. The modified jute fiber is prepared by modifying macromolecular substances with polyether and triallyl ether alternately connected on the surface of jute fiber. The macromolecular substance structure contains a large number of triallyl ether structures. The allyl groups can participate in the subsequent photocuring process of the paint, so that the covalent connection of the jute fiber and the paint molecular chain is realized. Therefore, the jute fiber can exist in the form of a chemical core in the coating layer formed by photocuring of the paint, and the jute fiber can strengthen and toughen the coating layer. Meanwhile, the macromolecular substance structure contains a large number of ether bonds, and the ether bonds can improve the adhesion of the paint film, thereby improving the problem of poor interlayer adhesion.
Owner:ZHONGSHAN XINFENG LIGHT CURING MATERIAL CO LTD
High-elasticity chitosan / silk fibroin semi-interpenetrating network hydrogel and photo-curing preparation method thereof
The application relates to a high-elasticity chitosan / silk fibroin semi-interpenetrating network hydrogel and a photo-curing preparation method thereof. The high-elasticity chitosan / silk fibroin semi-interpenetrating network hydrogel is obtained by mixing a regenerated silk fibroin solution and a solution containing acylated chitosan, then performing ultrasonic treatment and photo-curing, the compressive stress is 1000-1200 kPa, the maximum strain is 50-60%, and the Young's modulus is 300-400 MPa. The high-elasticity chitosan / silk fibroin semi-interpenetrating network hydrogel provided by the application has good mechanical properties, elasticity and biocompatibility, and has a good application prospect in the field of biomedical materials.
Owner:WUHAN TEXTILE UNIV
Support structure of plastic spraying and curing conveying line
The utility model provides a support structure of a plastic spraying and curing conveying line, belongs to the technical field of plastic part processing equipment, and aims to solve the problems that the spraying direction and the light curing irradiation direction in a processing bin are fixed, plastic products on a support are not uniformly processed, multiple procedures need to be repeatedly processed, and the processing efficiency is low. Comprising a placing table and a chain mechanism arranged in the placing table, the chain mechanism is connected with a plurality of support bodies, each support body comprises a rotating disc, the bottom of the rotating disc is connected with a gear, the rotating disc and the gear are rotationally connected with one chain link of a chain in the chain mechanism through a connecting shaft, the rotating disc is provided with a frame rod through a supporting sleeve, and the top of the frame rod is provided with a supporting cap. A sliding cavity in a circulating conveying path shape is formed in the containing table, the supporting sleeve is clamped in the sliding cavity, a rack is arranged at the bottom of the table top of the containing table and located on the inner side of the sliding cavity, and the gear on each support body is meshed with the rack.
Owner:CHONGQING YILE PLASTIC PRODUCTS CO LTD
Photo-curable compositions
A photo-curable composition can include a photo-curable resin and a photoinitiator. The photo-curable composition can typically have a shear viscosity of less than 1 Pa·s at 100° C. at a shear rate of 50 s−1 and can typically include a first prepolymer, a second prepolymer, and a reactive diluent.
Owner:STRATASYS INC
Automatic folding and storing equipment for photocuring dry hose
Owner:JIANGSU ZHIJIAQI NEW MATERIAL TECH CO LTD
High solid content lunar soil simulant paste with excellent rheological and retention properties and a method of making the same
The application discloses a high-solid-content simulated moon soil paste with excellent rheological and retention characteristics and a preparation method thereof. The high-solid-content simulated moon soil paste comprises a premixed liquid and a simulated moon soil powder, and the weight ratio of the premixed liquid to the simulated moon soil powder is 1:(78-82). The premixed liquid comprises 90-95 parts of photosensitive resin, 5-10 parts of wetting dispersant, 3-5 parts of water, 3-5 parts of defoaming agent and 1-5 parts of photoinitiator. The high-solid-content simulated moon soil paste is based on the emulsification principle of two mutually insoluble liquids, a certain proportion of aqueous solution is introduced, under the action of the wetting dispersant, the water and the resin interface form a directional molecular layer and are emulsified to reduce the surface tension, according to the Gibbs adsorption formula, the problem that the high solid phase is difficult to reduce the viscosity is better solved, and in combination with the SLA photocuring technology, the photocuring printing of the simulated moon soil paste with the solid content of 62vol% is realized.
Owner:GUANGZHOU PANYU POLYTECHNIC
Composition and method of making article
PendingCN120842483AAdditive manufacturing apparatus3D object support structuresPolymer scienceOrganic chemistry
The invention relates to a composition and a method of making an article. A photocurable composition includes a first component composed of a photocurable compound, a second component composed of a photopolymerization initiator, a third component composed of black particles, and a fourth component composed of non-black particles. The mass concentration of the fourth component in the composition is greater than 100 times of the mass concentration of the third component and less than 3000 times of the mass concentration of the third component.
Owner:CANON KK
Self-adjusting photocuring ice-cold hydrogel as well as preparation method and application thereof
The invention belongs to the technical field of hydrogel materials, and particularly relates to self-adjusting light-curing ice-cold hydrogel as well as a preparation method and application thereof.The self-adjusting light-curing ice-cold hydrogel is prepared from the following raw materials in parts by weight: 10-17 parts of a cool-feeling matrix, 18-33 parts of acrylamide 13C3, 27-42 parts of glycerol, 5 parts of TPGDA, 0.05-0.15 part of a cross-linking agent and 0.1-0.3 part of a photoinitiator, by constructing a synergistic system of antifreeze protein and a konjac glucomannan skeleton, the purpose of gelation and cool sense self-adjustment of an isotope labeling monomer is achieved, and the isotopic labeling monomer can be used for preparing drug-loaded gel dressings, cooling gel pads, cooling gel bags, cooling gel injection products and in-situ injection gel products. The photocuring cross-linking technology is beneficial to rapid forming of the gel dressing, and the stability of the effective components is improved.
Owner:ZHEJIANG HAIYA COMMODITY CO LTD
Small photocuring forming equipment with liquid level flattening function
ActiveCN223685993UAdditive manufacturing with liquids3D object support structuresStructural engineeringMechanical engineering
Owner:GUANGZHOU HUACHUANG ADDITIVE TECHNOLOGY CO LTD
High-concentration oxime ester compound solution and application thereof
PendingCN121717932AOptical filtersPhotosensitive materials for photomechanical apparatusHigh concentrationCombinatorial chemistry
The invention provides a high-concentration oxime ester compound solution and application thereof. The invention also relates to preparation of a photocuring composition taking the solution as a photoinitiator component and preparation of a photoresist. The high-concentration oxime ester compound solution contains at least one compound with a structure shown as a formula I and at least one solvent, the mass of the compound shown as the formula I accounts for 50%-95% of the mass of the high-concentration oxime ester compound solution, and the balance is the solvent or other compounds. The high-concentration oxime ester compound solution disclosed by the invention has remarkable use convenience in a photocuring composition formula, especially in a photoresist production process, and the risk that a photoinitiator is possibly separated out in a low-temperature storage process of photoresist is completely eliminated.
Owner:BEIJING YUNJI TECH CO LTD
Cleaning and curing equipment for photocuring model
ActiveCN223701728UAdditive manufacturing apparatus3D object support structuresMechanical engineeringPhoto curing
The utility model relates to cleaning and curing equipment for a photocuring model. The cleaning and curing equipment comprises a base plate, a housing, a cleaning liquid cabin, a rotating assembly, a storage platform, a curing assembly, a spraying assembly and a curing filter cartridge, the spraying assembly, the cleaning liquid tank and the curing filter cartridge are connected in pairs; the storage platform is mounted on the rotating assembly; a groove is formed in the housing, the storage platform is located in the groove, the groove is communicated with the curing filter cartridge, and the model is placed on the storage platform; a spraying pipe of the spraying assembly is positioned on one side of the model; the curing component is positioned on one side of the model; when the equipment is in a cleaning state and a curing state, the cleaning cover shell and the curing cover shell are arranged in a covering mode. Compared with the prior art, the device has the advantages that cleaning and further curing of the photocuring printing model can be achieved only through one device; the model is cleaned through the spraying assembly, and the usage amount of cleaning liquid can be effectively reduced; the cleaning liquid is filtered through the curing filter cartridge, so that thorough cleaning can be realized, and the cleaning liquid can be reused.
Owner:SHANGHAI JIANQIAO COLLEGE CO LTD
Sulfur-containing photoinitiator, its preparation method and application
The present application relates to a kind of sulfur-containing photoinitiator and its preparation method and application, the sulfur-containing photoinitiator compared with traditional free radical type II photoinitiator BP, it has more optimal photo-curing activity under ultraviolet light irradiation, the energy required for photo-curing is lower, and the migration rate in coating after photo-curing is low, and good use safety.
Owner:TIANJIN JIURI NEW MATERIALS CO LTD
Photocurable ink composition and application thereof
The invention provides a photocuring ink composition and application thereof, and can be applied to the technical field of photocuring materials. Based on the total mass of the photocuring ink composition, the photocuring ink composition comprises the following components in percentage by mass: 0.5%-15% of a benzoyl formate photoinitiator; 8%-20% of an adhesive resin; 15%-70% of a polymerizable acrylate monomer or an oligomer thereof; and 1%-50% of a coloring component. The photocuring ink composition provided by the invention is good in photocuring property, excellent in solvent wiping resistance, low in mobility and small in odor, has a wide application prospect, and is particularly beneficial to popularization and application in the food packaging industry.
Owner:CHANGZHOU TRONLY NEW ELECTRONICS MATERIALS CO LTD +1
Photocured mussel-biomimetic acylhydrazone, preparation method and application thereof
The application discloses a kind of photo-curing mussel biomimetic acylhydrazone and its preparation method and application, the structural formula of the photo-curing mussel biomimetic acylhydrazone is as shown in formula (I).The photo-curing mussel biomimetic acylhydrazone of the application has catechol structure and carbon-carbon double bond, raw material is low in price, synthesis process does not need to modify catechol structure, preparation method is simple, can reduce the synthesis difficulty and production cost of mussel biomimetic material.The mussel biomimetic photo-curing adhesive composition prepared by using photo-curing mussel biomimetic acylhydrazone as raw material has good adhesive property, and can improve the problem of insufficient adhesion and failure of photo-curing adhesive, and prevent falling.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY
Method for rapidly and quantitatively detecting conductivity of photocuring conductive hydrogel
PendingCN121678771AFluid resistance measurementsMaterial resistanceLiquid storage tankChronoamperometry
The invention relates to the technical field of electrical property testing of materials, in particular to a method for rapidly and quantitatively detecting the conductivity of photocuring conductive hydrogel, which comprises the following steps: step S1, pretreatment of a curing container; s2, injecting a hydrogel solution, curing and detecting the conductivity; placing the curing container on a detection base; an electrolyte solution and deionized water are dropwise added into the two liquid storage tanks respectively, the head end and the tail end of the curing container are soaked in the electrolyte solution and the deionized water respectively, then a detection device is used, a chronoamperometry method is adopted for measuring current, and the conductivity is obtained through calculation; the method is high in detection efficiency, rapid and quantitative detection of conductivity is realized, real conductivity detection data can be obtained, the accuracy and reliability of a detection result are ensured, and the problems that an existing detection method is long in detection time consumption, low in detection efficiency, low in conductivity detection data authenticity and poor in detection accuracy are solved. And the accuracy and the reliability of a detection result cannot be ensured.
Owner:SHENZHEN UNIV
Photocuring-based bionic layered ceramic and preparation method thereof
The invention provides bionic layered ceramic based on photocuring and a preparation method of the bionic layered ceramic, and belongs to the technical field of ceramic manufacturing. The preparation method comprises the following steps: mixing first ceramic mixed powder and a first liquid-phase composition to prepare matrix layer slurry; mixing the second ceramic mixed powder and the second liquid phase composition to prepare interface layer slurry; then carrying out 3D photocuring printing on the matrix layer slurry and the interface layer slurry to prepare a layered ceramic biscuit; finally, the layered ceramic biscuit is dried, degreased and sintered, and the bionic layered ceramic is prepared. The first liquid phase composition and the second liquid phase composition independently include a photosensitive resin, a dispersant, and a photoinitiator. The bionic layered ceramic prepared by the method is low in layer thickness, high in layer precision, obvious in toughening phenomena such as crack deflection and crack bifurcation in the fracture process, and relatively high in fracture property and reliability.
Owner:ARMOR ACADEMY OF CHINESE PEOPLES LIBERATION ARMY
Capsaicin-modified bacteriostatic antifouling photocureable coating and application thereof
The invention relates to the field of coatings, in particular to a capsaicin-modified antibacterial antifouling photocureable coating and application thereof. The coating comprises the following components in percentage by weight: 5%-15% of capsaicin acrylate, 10%-20% of an anti-doodling additive, 25%-40% of four-functional-group polyurethane acrylate, 5%-10% of two-functional-group polyurethane acrylate, 5%-10% of a reactive diluent, 3%-8% of a photoinitiator, 1%-3% of a base material wetting agent, 2%-4% of a flatting agent and 0.5%-1% of a defoaming agent. The paint provided by the invention forms a paint film after being subjected to UV curing, has the effects of inhibiting bacteria, preventing mildew, resisting stains and being easy to clean, and can be applied to kitchen and bath aluminum alloy decorative plates.
Owner:GUANGDONG ZHUOHE HIGH-TECH MATERIALS CO LTD
A method for preparing a photo-curable rare earth doped low-oxygen silicon carbide fiber
The application discloses a preparation method of a photocurable rare earth doped low-oxygen silicon carbide fiber, and comprises the following steps: preparing liquid sol A by taking a rare earth metal organic complex and polydimethylsilane as raw materials; obtaining a polycarbosilane precursor B containing a rare earth metal element by evaporating a solvent and high-temperature cracking reaction of the sol A; then preparing modified polycarbosilane by blending reaction of the polycarbosilane precursor B and an unsaturated organic ether; and then performing infusibilization treatment on the modified polycarbosilane by ultraviolet light irradiation under the action of a photoinitiator after melt spinning; and finally obtaining the rare earth doped low-oxygen silicon carbide fiber after high-temperature sintering treatment. f The rare earth element is introduced in the preparation of the precursor, and the rare earth element is uniformly dispersed in the silicon carbide crystal lattice, and the silicon carbide original wire is subjected to infusibilization crosslinking treatment by combining photo-curing, so that the crystal growth and electromagnetic properties of the ceramic can be better improved while the oxygen content of the silicon carbide fiber is reduced.
Owner:XIAMEN DAHUA BENAN CHEM SAFETY RES INST CO LTD
Preparation method of ceramic core for titanium alloy casting
The invention belongs to the technical field of casting forming, and particularly relates to a preparation method of a ceramic core for titanium alloy casting. Comprising the following steps: designing a mold core mold according to a mold core structure, and obtaining the mold core mold through a photocuring 3D printing process; coating the working surface of the core mold with facing layer slurry, adjacent surface layer slurry and reinforcing layer slurry in sequence to obtain a core of a ceramic layer; the cavity of the mold core of the ceramic layer is filled with sodium silicate sand, roasting is carried out, the mold core mold is burnt out, the mold core is integrally sintered, and the ceramic mold core for titanium alloy casting is obtained. According to the method, the advantages of high precision of photo-curing printing and collapsibility of sodium silicate sand filling are combined, so that the problems of high cost, long period and complicated process flow caused by preparation of an existing metal mold and a wood mold and the problem of difficulty in cleaning caused by over-high strength of a ceramic core are effectively solved; the requirements for low surface roughness, high precision and easy core cleaning of the core mold are effectively met, and the core mold is suitable for casting titanium alloy castings with complex inner cavity structures.
Owner:XIAN XIMAI PRECISION CASTING CO LTD
Self-regulating photocurable cooling hydrogel, its manufacturing method and applications
This invention belongs to the field of hydrogel materials technology, and specifically provides self-modulating photocurable cooling hydrogels, their manufacturing methods, and applications. [Solution] The self-regulating photocurable cooling hydrogel consists of 10-17 parts of a cooling matrix and acrylamide- 13 It contains 8-33 parts of C31, 27-42 parts of glycerin, 5 parts of TPGDA, 0.05-0.15 parts of crosslinking agent, and 0.1-0.3 parts of photoinitiator. By constructing a cooperative system between the antifreeze protein and the konjac glucomannan backbone, the objectives of gelation of isotope-labeled monomers and self-regulation of cooling sensation are achieved, and it can be used in the manufacture of drug-carrying gel dressings, cooling gel dressings, and in situ injection gel products. The photocuring crosslinking technology is advantageous for rapid formation of gel dressings and improves the stability of the active ingredient.
Owner:ZHEJIANG HAIJI DAILY NECESSITIES CO LTD
Method for changing surface characteristics by using ink jet technology
The invention discloses a method for changing surface characteristics by using an ink jet technology, and relates to the technical field of surface treatment, and the method comprises the following steps: reducing the surface energy of a hydrophilic material, converting the hydrophilic material into a hydrophobic material, improving the surface energy of the hydrophobic material, and converting the hydrophobic material into the hydrophilic material. According to the method, a hydrophilic material can be converted into a hydrophobic material, the hydrophobic material can be converted into the hydrophilic material, a coating with a specific thickness can be formed on a target base material by printing the photoinitiator and the active monomer and carrying out photocuring, and the coating can change the surface energy of the material, so that the surface energy of the material can be changed. Compared with the prior art, the photoinitiator and the active monomer are added, so that the original hydrophilicity or hydrophobicity of the photoinitiator is converted into the opposite property, the photoinitiator and the active monomer have important significance in controlling the wettability, the pollution resistance and the like of the material, and the final surface energy is accurately controlled by controlling the selection, dissolution and printing processes of the photoinitiator and the active monomer.
Owner:ANHUI FANJIE INTELLIGENT MANUFACTURING CO LTD
Preparation method and application of marine fish-derived methacrylated gelatin gelma hydrogel
The application discloses a preparation method of marine fish source methacrylated gelatin GelMA hydrogel and application thereof, and successfully prepares GelMA by using marine fish source gelatin, forms the hydrogel by ultraviolet curing through a photo initiator lithium phenyl-2, 4, 6-trimethyl benzoyl phosphonate (LAP), and successfully realizes 3D culture of cells. The marine source GelMA has the characteristics of sustainable source and high biological safety, the process of photo curing into gelatin is mild, fast, small in cell damage, simple in operation, and can be applied to the fields of cell culture, tissue engineering, drug screening and personalized treatment, and the like, and at present, marine source GelMA is less reported, and has a good market prospect.
Owner:JIANGSU OCEAN UNIV +1
Photocuring secondary packaging method for active functional component
PendingCN121171899ASemiconductor/solid-state device detailsSolid-state devicesInfrared lampPhysical chemistry
The invention relates to a photocuring secondary packaging method for an active functional component, and belongs to the technical field of aviation composite material forming. The method comprises the following steps: preparing a sprayable photocuring packaging precursor glue solution; according to the thickness of the component, uniformly spraying the photocuring packaging precursor glue solution on the surface of the planar or curved active electromagnetic structure; an ultraviolet lamp or a near-infrared lamp is adopted to irradiate the photocuring packaging precursor, photocuring of the packaging material is completed, secondary packaging processing of the component is achieved, and it is guaranteed that the component is completely wrapped by the secondary packaging material.
Owner:THE RES INST FOR SPECIAL STRUCTURES OF AERONAUTICAL COMPOSITE AVIC
High-adhesive-force UV ink jet curing five-color ink for glass plate and preparation method of high-adhesive-force UV ink jet curing five-color ink
The invention discloses a high-adhesion UV ink jet curing five-color ink for a glass plate and a preparation method thereof, the five-color ink comprises five basic colors of red, yellow, blue, white and black, and the ink is subjected to UV curing by using an ink jet printer. The light-cured ink is characterized by comprising the following main components: 40-70% of a monofunctional light-cured monomer, 1-20% of a bifunctional and multifunctional light-cured monomer, 1-10% of an acidic light-cured monomer, 5-30% of polyurethane acrylate resin, 1-10% of hyperbranched polyester acrylate resin, 3-15% of a photoinitiator, 1-20% of a color paste pigment and 0.1-10% of an auxiliary agent. Compared with the prior art, the water-based UV ink has the advantages that the water-based UV ink has high adhesive force on glass, does not need a glass surface coating to enhance the adhesive force, does not need post-baking secondary curing, and has excellent performances of high adhesive force, high-temperature and high-humidity resistance, high flexibility, scratch resistance, ethanol resistance and the like after being directly subjected to UV curing by using ink-jet printing equipment. The jet printing operation of the ink is simple and rapid, the curing speed is high, the production efficiency can be greatly improved, and the emission of VOC is reduced.
Owner:KUNSHAN BAIROU NEW MATERIAL TECH CO LTD
A photoinitiator and a method for preparing the same
The present application relates to the field of organic photocuring materials, and particularly relates to a photoinitiator and a preparation method thereof.The photoinitiator is prepared by a double modification method, and successfully overcomes the problems of single function, limited applicability and lack of antibacterial property in the existing glycosyl-modified photoinitiator.In general, the technical scheme of the present application not only maintains the high photoinitiation ability and excellent photosensitive characteristics of the hydroxy ketone photoinitiator, but also combines the biocompatibility advantage of the glycosyl modification and the antibacterial / antistatic multifunctionality of the quaternary ammonium salt modification.The photoinitiator can not only be compatible with the photographic plate-making of the pattern surface in various printing processes, but also be used for biological ink to realize 3D biological printing, and has special significance for use scenarios with high biocompatibility requirements, and has great application potential and market promotion value in various high-end fields such as water-based coatings, medical dressings, food contact materials and biomedical hydrogels.
Owner:PEKING UNIV SHENZHEN GRADUATE SCHOOL
Additive manufacturing of high precision fugitive ceramic shells
The application provides a kind of high-precision easy-to-collapse ceramic shell for additive manufacturing, belonging to investment precision casting technical field, comprising slurry, the slurry includes ceramic matrix powder, photocuring resin, dispersing agent and suspending agent, the matrix powder includes EC95 powder, high-purity alumina powder, bauxite powder, micro-fine silicon nitride powder, the mass percentage of each material in the matrix powder is: EC95 powder is 60-80wt%, high-purity alumina powder is 10-20wt%, bauxite powder is 8-15wt%, micro-fine silicon nitride powder is 2-5wt%, after the slurry is prepared, the shell wet blank is prepared by using photocuring 3D printing equipment, then the ceramic shell is formed by using step oxygen supplement process for debinding and baking. The application can reduce the shell making cycle, improve the shell making efficiency, on the basis of ensuring the high-temperature strength of the ceramic shell, improve the size accuracy of the shell and the collapsibility after pouring.
Owner:SHENYANG RES INST OF FOUNDRY
Photoinitiator, and preparation method therefor and use thereof
PCT designated stageWO2025228452A1Organic chemistryEpoxy resin coatingsPolymer sciencePhotoinitiator
Provided in the present application are a photoinitiator, and a preparation method therefor and the use thereof. The photoinitiator has a structure as represented by formula (I). When being applied to a photocuring system, the photoinitiator of the present application has good compatibility and a high initiation activity, does not migrate, has a high atom utilization rate, and can be applied to a hybrid system.
Owner:CHANGZHOU TRONLY ADVANCED ELECTRONICS MATERIALS CO LTD +2
Sealing method
Provided is a sealing method that uses a photo-curable sealant sheet. The sealing method provided comprises, in the following order, a step of obtaining a photo-curable sealant sheet, a step of subjecting the sealant sheet to photoirradiation, and a step of applying the sealant sheet to a target object.
Owner:NITTO DENKO CORP