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107 results about "Photo curing" patented technology
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Water-resistant wood-plastic reinforced composite flooring and manufacturing method therefor
PCT designated stage expiredWO2025148338A1Polyurea/polyurethane coatingsWood impregnation detailsPolymer scienceMethacrylate methyl
Provided are a water-resistant wood-plastic reinforced composite flooring and a manufacturing method therefor. Wood flour is boiled in boiling water for 3-4 hours, filtered and dried, to obtain dried wood flour; polypropylene, butyl acrylate, methyl methacrylate, maleic anhydride and dicumyl peroxide are mixed evenly, extruded and granulated, and dried to obtain a compatibilizer; the dried wood flour and polypropylene are mixed evenly, the compatibilizer is added and mixed evenly, then extrusion and granulation, and injection molded, are performed, to obtain a wood-plastic flooring blank; a composite resin emulsion and a photoinitiator are ultrasonically mixed evenly, and the wood-plastic flooring blank is immersed therein, then taken out and dried at room temperature, and then vacuum dried and UV cured, to obtain water-resistant wood-plastic reinforced composite flooring.
Owner:VOHRINGER HOME TECH CO LTD
Device for multi-material photocuring additive manufacturing
PendingCN120461827AManufacturing platforms/substrates3D object support structuresProcess engineeringWorkbench
The invention provides a device for multi-material photo-curing additive manufacturing, and belongs to the technical field of photo-curing additive manufacturing, the device comprises a workbench, the workbench is provided with a lifting column and a printing platform, the printing platform is connected with the lifting column, the lifting column can drive the printing platform to ascend and descend, and the printing platform is used for bearing a printing blank; the number of the printing cleaning assemblies is at least two, each printing cleaning assembly comprises a slurry table and a cleaning table, each slurry table is provided with a slurry groove, and each cleaning table is provided with a cleaning groove; all the printing cleaning assemblies are connected with the moving assembly, and the moving assembly is used for driving all the printing cleaning assemblies to move and enabling the printing platform to be located above any one of the slurry tables or above any one of the cleaning tables. The photocuring additive manufacturing device has the beneficial effects that printing of multiple materials can be achieved through the same photocuring additive manufacturing device, and meanwhile interface pollution of dissimilar materials is prevented.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI
Point self-growing obstacle avoidance robot based on photocuring principle
The invention relates to a tip self-growing obstacle avoidance robot based on a photocuring principle. The tip self-growing obstacle avoidance robot comprises a main body, a moving unit, a first conveying unit, a curing unit and a second conveying unit, the moving unit is arranged on the main body, and the first conveying unit and the second conveying unit communicate with the curing unit; the first conveying unit conveys the liquid curing material to the main body, and the curing unit cures the liquid curing material to obtain a solid growth object; when the solid growth object is formed, the main body moves through the moving unit, so that the solid growth object continuously extends; after the solid growth substance is used up, the dissolving material is conveyed to the main body through the second conveying unit, the solid growth substance is dissolved into a liquid curing material, and reverse growth and recovery of the solid growth substance are realized.
Owner:HARBIN INSTITUTE OF TECHNOLOGY (SHENZHEN) (INSTITUTE OF SCIENCE AND TECHNOLOGY INNOVATION HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN)
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
Feeding device for photocureable coating
A photocureable coating feeding device is characterized by comprising a box body, a box cover is arranged on the box body, a supporting seat is arranged in the box body, a liquid suction pump is arranged on the supporting seat, a liquid inlet pipe is arranged on the liquid suction pump, a storage bin is arranged in the box body, a filter box is arranged in the storage bin, a protruding block is arranged on the filter box, and the protruding block is connected with the supporting seat. A sliding groove is formed in the storage bin, a limiting hole is formed in the storage bin, and a limiting column is arranged in the limiting hole; the photocureable coating is discharged into the storage bin through the liquid inlet pipe, impurities are removed through the filter box, when the storage bin is full, the liquid discharge pump is started, the liquid discharge pipe extends out of the box body to be connected with use equipment, when the storage barrel needs to be replaced, the liquid suction pump is connected with the other storage barrel, and during replacement, the liquid suction pump is connected with the storage barrel. The photocureable coating stored in the storage bin is uninterruptedly discharged out of the box, so that a time vacuum period occurring when the storage barrel is replaced is avoided, and obvious layering cannot occur when the photocureable coating storage box is used.
Owner:SHANGNING HEARTWOOD (TIANJIN) TECH CO LTD +1
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-curing material, preparation method and application thereof and orthopedic external fixation support
The invention belongs to the technical field of medical instruments, and particularly relates to a photocuring material, a preparation method and application thereof and an orthopedic external fixation support. The photocuring material disclosed by the invention is prepared by carrying out photocuring on raw materials comprising the following components: 40 to 50 parts of polyurethane acrylic acid, 20 to 30 parts of epoxy acrylate, 5 to 10 parts of isobornyl methacrylate, 8 to 16 parts of acrylate monomer and 0.5 to 2 parts of photoinitiator. The invention further provides an orthopedic external fixation support made of the photocuring material. The photo-curing material disclosed by the invention is good in mechanical property and flexibility, capable of meeting the application requirements of external fixing braces for orthopedics, free of pungent smell, low in heat productivity during curing and very good in safety. Therefore, the photo-curing material and the orthopedic external fixation brace prepared from the photo-curing material have good application prospects.
Owner:SICHUAN YANGZIJIANG MEDICAL EQUIP 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
Heat dissipation and dust prevention device for curing machine
The utility model relates to the technical field of photocuring, and discloses a heat dissipation and dust prevention device for a curing machine, which comprises a rack, a conveying device is fixedly connected inside the rack, a conveying belt is arranged on the outer wall of the conveying device, a curing machine device is fixedly mounted on the rear side of the top wall of the rack, a heat dissipation shell is fixedly connected on the front side of the top wall of the rack, and the heat dissipation shell is provided with a heat dissipation hole. An air blower is fixedly connected to the right side of the top wall of the heat dissipation shell, the front end of the left side of the air blower communicates with an extraction pipe, the left end of the extraction pipe communicates with a filter shell, an adsorption sponge is slidably mounted on the inner wall of the filter shell, and a plurality of filter columns communicate with the top wall of the filter shell at equal intervals. According to the cooling device, outside air is extracted, so that airflow is output through the annular spray head after being filtered and dried, a workpiece can be cooled, meanwhile, under the guidance of the guide plate, the airflow can synchronously cool the side face of the workpiece, and the working efficiency is improved.
Owner:SHANGHAI YITIAN PAINT CO LTD
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
Residual material cleaning device for SLA photocuring printer
ActiveCN222819559UAdditive manufacturing apparatus3D object support structuresComputer printingProcess engineering
The utility model provides a residual material cleaning device for an SLA photocuring printer, which belongs to the technical field of photocuring printers and comprises a support frame, a residual material cleaning component, a material collecting disc and a driving component, the support frame is mounted on an operating platform inside the SLA photocuring printer, the residual material cleaning component is slidably connected onto the support frame, and the driving component is mounted on the material collecting disc. The remaining material cleaning assembly is detachably connected to the supporting frame and located above the mesh plate, the material collecting disc is detachably connected to the supporting frame and located below the mesh plate, and the driving assembly is used for driving the remaining material cleaning assembly to slide on the supporting frame, so that the remaining material cleaning assembly moves from one end of the mesh plate to the other end of the mesh plate to clean remaining materials adhering to the mesh plate, and the remaining materials fall onto the material collecting disc. According to the residual material body cleaning device for the SLA photo-curing printer, manual cleaning operation on residual material bodies of the SLA photo-curing printer is replaced, so that the residual material body cleaning operation is convenient, and the cleaning efficiency is improved.
Owner:HEBEI VOCATIONAL & TECH UNIV OF SCI & TECH
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
Antibacterial formaldehyde-free decorative base paper and preparation method thereof
The invention provides antibacterial formaldehyde-free decorative base paper and a preparation method thereof, and relates to the technical field of decorative base paper preparation, the antibacterial formaldehyde-free decorative base paper comprises the following raw materials by weight: 50-70 parts of softwood pulp fiber, 20-50 parts of hardwood pulp fiber, 20-40 parts of titanium dioxide, 2-5 parts of chitosan-guanidine salt microspheres, 2-5 parts of an antibacterial synergist, and 1-3 parts of a stabilizer. By introducing a chitosan-guanidine salt microsphere sustained-release system, the cost is controlled, the whiteness stability is improved, and a long-acting antibacterial function is realized; by optimizing the ZnO-TiO2 heterojunction ratio and combining with the air suspension spraying and photocuring process, the photocatalytic activity and the antibacterial agent distribution uniformity are enhanced, the antibacterial efficiency is synchronously improved, and VOC emission is reduced; the waterborne polyurethane partially replaces melamine resin and cooperates with the formaldehyde catching agent, so that formaldehyde release is effectively inhibited.
Owner:ZHE JIANG XIA WANG ZHI YE YOU XIAN GONG SI
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