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109 results about "Thermal curing" patented technology

Thermal curing is the process of temperature-induced chemical change in a material, such as the polymerization of a thermoset resin. This process is relevant, for example, when a precursor resin is heated and hardens during the manufacturing of composites.

Graphene heat dissipation film and preparation method thereof

The invention discloses a graphene heat dissipation film and a preparation method thereof, and relates to the technical field of heat dissipation materials.The method comprises the steps that graphene powder and doped particles are mixed according to the mass fraction of 5-20%, deionized water is added to serve as a dispersion medium, 0.5-5% of a stripping auxiliary agent is added, treatment is conducted through high-speed shear dispersion and ultrasonic dispersion, and the graphene heat dissipation film is obtained. Uniform and stable modified graphene slurry is formed; coating the modified graphene slurry on a base material layer by layer according to a sequence from low thermal conductivity to high thermal conductivity, controlling the coating thickness by adopting a scraper or a spin coating process, and performing pre-drying treatment after coating each layer; the coated film is dried at the temperature of 80-200 DEG C, and the interlayer bonding strength is enhanced through chemical curing or thermocuring. Through innovative design of a modified graphene material and optimization of a multi-layer gradient structure, comprehensive improvement of thermal conductivity, mechanical properties and stability of the graphene heat dissipation film is realized.
Owner:QINGDAO JINGHU NEW MATERIALS CO LTD

Preparation method of pH-step-by-step thermocuring regulated sodium-magnesium separation nanofiltration membrane

The invention relates to the technical field of membrane separation, in particular to a preparation method of a pH-step-by-step thermocuring regulation sodium-magnesium separation nanofiltration membrane. The method comprises the following steps: (1) pre-treating a base membrane; (2) preparation and treatment of an aqueous phase solution: S1, preparing the aqueous phase solution according to mass fraction: sequentially adding 1.2%-1.6% of piperazine, 0.10%-0.14% of triaminopyrimidine and 0.14%-0.18% of polyethylene glycol into deionized water, and stirring until the piperazine, the triaminopyrimidine and the polyethylene glycol are completely dissolved to form the aqueous phase solution; s2, adjusting the pH value of the water-phase solution to 10-11 by using hydrochloric acid; s3, pouring the water-phase solution of which the pH is adjusted on the surface of the pretreated base membrane, standing, and blow-drying to form a uniform water-phase layer; (3) interfacial polymerization reaction: S1, preparing an oil phase solution: adding 0.10-0.14% of trimesoyl chloride into n-hexane, and performing ultrasonic treatment until the trimesoyl chloride is completely dissolved; s2, pouring the oil-phase solution on the surface of the base membrane subjected to water-phase treatment, and after reaction, pouring out redundant solution to form a polyamide separation layer, so as to obtain a membrane sheet; (4) performing a step-by-step thermocuring process; and (5) cleaning and storing.
Owner:ZHEJIANG JINMO ENVIRONMENT TECH CO LTD

Highly-transparent bio-based polyurethane fluoride-free antifouling coating as well as preparation method and application thereof

The invention discloses a highly-transparent bio-based polyurethane fluoride-free antifouling coating and a preparation method and application thereof.The highly-transparent bio-based polyurethane fluoride-free antifouling coating is prepared by taking tannic acid (TA) as biological polyol, hexamethylene diisocyanate trimer (HDIT) as a cross-linking agent and monohydroxy polydimethylsiloxane (PDMS-OH) as a low-surface-tension material through thermocuring cross-linking, so that the highly-transparent bio-based polyurethane fluoride-free antifouling coating is prepared. And the tannic acid-based polyurethane fluoride-free antifouling coating is prepared. The coating shows up to 99% of optical transparency, has an ultraviolet shielding effect, and has excellent self-cleaning, anti-doodling and anti-artificial fingerprint pollution capabilities, and water, hexadecane, vegetable oil and pump oil easily slide off from the surface without traces. And even if the coating is repeatedly written and erased for 500 times, the coating still keeps excellent anti-graffiti performance. Due to the excellent adhesive force of the TA, the TA can be applied to various base materials. When the coating is bent and folded, the coating is still kept complete, the coating does not crack or peel off, and the coating has a wide application prospect.
Owner:SOUTH CHINA UNIV OF TECH

Epoxidized soybean oil-binary acid bio-based dynamic polymer, preparation method thereof and paper-based strain sensor packaged by epoxidized soybean oil-binary acid bio-based dynamic polymer

The invention provides an epoxidized soybean oil-binary acid bio-based dynamic polymer, a preparation method thereof and a paper-based strain sensor packaged by the epoxidized soybean oil-binary acid bio-based dynamic polymer. The preparation method of the dynamic polymer comprises the following steps: (1) taking epoxidized soybean oil as an epoxy monomer, aliphatic dibasic acid as a flexible monomer and aromatic dibasic acid as a rigid monomer, and carrying out polymerization reaction in the presence of a transesterification catalyst to obtain a dynamic polymer prepolymer; the aliphatic binary acid comprises succinic acid, adipic acid and sebacic acid; (2) removing bubbles from the dynamic polymer prepolymer; and (3) carrying out thermal curing on the dynamic polymer prepolymer to obtain the epoxidized soybean oil-binary acid bio-based dynamic polymer. The epoxidized soybean oil-binary acid bio-based dynamic polymer has good mechanical properties and hydrophobicity, a paper-based strain sensor based on the epoxidized soybean oil-binary acid bio-based dynamic polymer also has good mechanical properties and hydrophobicity, and the sensor has certain application potential in the field of human motion monitoring.
Owner:SHAANXI UNIV OF SCI & TECH

Non-magnetic mobile base glue culture honor wall poster and preparation method thereof

The invention relates to the technical field of home decoration, and discloses a non-magnetic mobile base adhesive culture honor wall poster and a preparation method thereof, and the wall poster sequentially comprises a dynamic adsorption layer, a photocatalysis layer, a degradable base material layer and a water-soluble interface agent layer from top to bottom. The preparation method comprises the steps of raw material preparation, compounding of each layer and the like. According to the wall poster, the bio-based material (bamboo fiber / PLA / PBAT) is used as the base material layer to replace traditional petroleum-based PET, the release amount of VOCs is greatly reduced, the photocatalytic layer can decompose pollutants such as formaldehyde, the indoor air quality can be improved, the cycle index is increased to 300 or above through the gradient microsphere structure, and the replacement frequency is reduced. Compared with traditional coating and thermocuring, the electrostatic spraying and UV curing process is more energy-saving and emission-reducing, gradient arrangement of the microspheres is achieved through segmented electrostatic spraying, and the adsorption stability is improved. And by embedding the NFC chip, the product traceability is realized, the circular economy is supported, and the recycling rate is improved.
Owner:GUANGZHOU PEISEN CULTURE TECHNOLOGY CO LTD

Preparation method of supported porous carbon for catalyzing hydrosilylation reaction

The invention relates to a preparation method of supported porous carbon for catalyzing hydrosilylation reaction, which comprises the following steps: (S1) mixing thermoplastic phenolic resin, polyindole boric acid and a stabilizer, and heating to react to obtain modified phenolic resin; the mass ratio of the thermoplastic phenolic resin to the polyindole boric acid is 100: (15-25); (S2) dissolving the modified phenolic resin, a pore-foaming agent and a curing agent in a solvent, removing the solvent, and crushing to obtain solid particles; (S3) carrying out thermocuring, pre-oxidation, carbonization, activation and oxidation treatment on the solid particles in sequence to obtain oxidized porous carbon; (S4) modifying the oxidized porous carbon with vinyl siloxane to obtain vinyl siloxane modified porous carbon; and (S5) dipping the vinyl siloxane modified porous carbon in an alcoholic solution of platinum salt to obtain the supported porous carbon. The supported porous carbon prepared by the invention has excellent catalytic efficiency and good stability when being used for catalyzing hydrosilylation reaction, and can be recycled.
Owner:FUJIAN XINSEN CARBON

Preparation method of antifouling oil-repellent moisture-permeable cotton fiber and fabric applying same

The invention discloses a preparation method of antifouling, oil-repellent and moisture-permeable cotton fibers and a fabric using the same, and relates to the technical field of fiber surface functionalization treatment. The method comprises the five steps of enzyme dewaxing, weak acid neutralization, perfluorosilane vapor deposition, thermocuring and moisture regaining and humidifying. The method comprises the following steps: firstly, mildly removing waxiness on the surface of the cotton fiber under the buffering of glycine and the assistance of ultrasonic waves by adopting the synergistic effect of lipase and acid cutting enzyme, and controlling the waxiness loss rate to be 0.8-1.2 wt%; then neutralizing the surface of the fiber through a weak acid bath containing citric acid and a silane coupling agent, and controlling the moisture content in cooperation with hot air drying. Carrying out perfluorodecyl / perfluorooctylsilane vapor deposition on the humidified fibers at low pressure, and introducing a trace amount of water vapor to induce Si-O-Si network construction; and the compactness and durability of the coating are further improved through two-stage thermocuring. The obtained fiber has high oil and water repellency and excellent moisture permeability.
Owner:SHISHOU DEYONGSHENG TEXTILE CO LTD

Automatic coating device for thermocuring insulating film

The invention relates to an automatic coating device for a thermocuring insulating film. Comprising a lower film forming mechanism used for forming a cavity where an aluminum sheet needs to be placed on a lower film, an aluminum sheet feeding mechanism used for placing the aluminum sheet into the cavity of the lower film and packaging and cutting the aluminum sheet and an upper film to form a product, and a tool assembling and disassembling mechanism used for loading the product into a thermocuring tool or disassembling the product from the thermocuring tool. The thermocuring and cooling mechanism is used for thermocuring and cooling the product loaded in the thermocuring tool; the tool assembling and disassembling mechanism is used for assembling a thermocuring tool, the post-processing mechanism is used for cutting, detecting and discharging a product subjected to thermocuring, and the transferring mechanism is used for transferring the thermocuring tool between the tool assembling and disassembling mechanism and the thermocuring and cooling mechanism and transferring the product between the tool assembling and disassembling mechanism and the post-processing mechanism. The labor cost is reduced, and the labor intensity and the production cost are reduced; the production quality and the production efficiency are improved, and the applicability is wide.
Owner:适新科技(苏州)有限公司

Thermosetting epoxy resin composition with good storage stability suitable for low curing temperature

The present invention relates to a thermosetting epoxy resin composition comprising a dihydrazide as curing agent, in combination with an accelerator of an imidazolium salt as curing agent, the molar ratio of curing agent to accelerator being 6-120. The compositions are characterized by good storage stability and low cure temperature. The epoxy resin composition is particularly suitable for use as a vehicle body adhesive.
Owner:SIKA TECH AG

A silicone-modified polyimide resin composition and use thereof

Disclosed is a silicone-modified polyimide resin composition comprising a silicone-modified polyimide, a thermal curing agent, wherein the silicone-modified polyimide contains a repeating unit represented by the following general formula (I): in the general formula (I), Ar 1 is a tetravalent organic group having a benzene ring or alicyclic hydrocarbon structure, Ar 2 is a divalent organic group, R is independently selected from a methyl group or a phenyl group, and the thermal curing agent is an epoxy resin, an isocyanate, or a bisoxazoline compound. The silicone-modified polyimide resin composition obtained by the present application has excellent heat resistance, mechanical strength, and light transmittance.
Owner:JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO LTD

Tubular pile maintenance equipment and process thereof

The invention discloses tubular pile maintenance equipment and a process thereof, and relates to the technical field of tubular pile maintenance, the tubular pile maintenance equipment comprises a maintenance box body, a heating mechanism is arranged on the outer side of the maintenance box body and is used for carrying out high-temperature heating treatment on a tubular pile body, and an upper top cover is arranged on the upper surface of the maintenance box body; a water storage tank capable of spraying and moisturizing the pipe pile body is arranged on the upper side of the middle part of the upper top cover; the heating mechanism comprises an exhaust frame, a first filter screen plate is arranged on the left side of the interior of the exhaust frame, and a fan is arranged in the middle of the exhaust frame. And a heating plate is arranged on the right side of the fan. The problems that in the maintenance process of the pipe pile, water spraying natural air drying maintenance or steam heating thermalization maintenance is mostly adopted, the mode can cause the pipe pile to be broken, cost is high, high-humidity and high-temperature maintenance is difficult to conduct, meanwhile, the pipe pile possibly shakes when placed, accurate positioning and moving cannot be achieved, and the maintenance efficiency is high are solved. And the problems of portable taking and placing are solved.
Owner:MAANSHAN BAOFENG PIPE PILE CO LTD

Encapsulation film and photovoltaic module

The application provides a packaging adhesive film and a photovoltaic module. The packaging adhesive film comprises a UV curing buffer layer and a thermal curing adhesive layer which are stacked in sequence, wherein the material of the UV curing buffer layer comprises a modified POE resin and a UV assistant crosslinking agent, the modified POE resin is grafted with a photoinitiator molecular fragment containing and / or a functional group, wherein "*" represents the connection position thereof in the photoinitiator molecular fragment. The pre-crosslinking degree gradually decreases in the UV curing buffer layer along the direction close to the thermal curing adhesive layer, thereby preventing the problem that the packaging adhesive film penetrates into the gap between the solder strip and the cell piece to form a false weld due to excessive flowability, avoiding the problem that the overall pre-crosslinking degree of the UV curing buffer layer is too large to cause hidden cracks on the cell piece during the laminating process, and preventing the problems of yellowing caused by the migration of the initiator and the precipitation of the assistant, and solving the problems of easy formation of false weld and occurrence of hidden cracks on the cell piece during the packaging of the HJT cell.
Owner:ZHEJIANG FORST NEW MATERIAL RES INST CO LTD

Mixture

Provided is a mixture which has a long usable time in a manufacturing process, has little change in characteristics due to heating during bonded magnet molding, and has high mechanical strength even when a thermosetting resin is subjected to a curing reaction under low temperature conditions. A mixture containing an epoxy resin (A), metal element-containing particles (C), and a curing agent (D) having an imidazole structure, the curing agent (D) having an imidazole structure comprising a compound represented by formula (1) and / or a compound represented by formula (2). R1, R2, X, Y, Z, m and n are as described in the specification.
Owner:ASAHI KASEI KOGYO KABUSHIKI KAISHA

Curable composition, semi-cured product, substrate with semi-cured product, laminate, and method for manufacturing the same.

PendingJP2026104099AEpoxyMethacrylate
The present invention provides a curable composition that possesses tackiness and plastic deformability in a semi-cured state and excellent strength after thermal curing, a semi-cured product of the curable composition, a substrate coated with the semi-cured product, a laminate containing the curable composition, and a method for manufacturing the same. [Solution] The curable composition according to the present disclosure contains a monofunctional (meth)acrylate (A1) and a polyfunctional (meth)acrylate (A2), which each contain a linear aliphatic hydrocarbon group that may have an ether bond and / or ester bond between carbon atoms and may have an alicyclic ring with a heteroatom as a substituent. A photopolymerization initiator (B), an epoxy resin (C), a thermosetting agent (D), and a tackifier (E) containing a terpene phenol resin.
Owner:KYORITSU KAGAKU SANGYO KK

Thermal curing apparatus

An apparatus for thermal curing of a lens-forming material contained in a plurality of closed contact lens molds, comprises a curing oven comprising a curing chamber for accommodating a stack of curing trays, with each curing tray of the stack arranged at a respective predetermined vertical level. The curing oven further comprises a supply channel and a baffle separating the supply channel from the curing chamber, the baffle comprising a plurality of supply holes. At a chamber inlet, the curing chamber is fluidly connected with the supply channel via the supply holes only, wherein the plurality of supply holes of the baffle are arranged along a plurality of horizontally extending rows, with one said row of the plurality of rows being arranged at an intermediate vertical level between each adjacent ones of the said predetermined vertical levels at which the curing trays of the stack are to be arranged.
Owner:ALCON INC

Preparation of thermally cured benzocyclobutene-based mq silicone resins and their use in the production of glass fiber composites

The application discloses a preparation of a thermosetting benzocyclobutene-based MQ silicone resin and application thereof in preparing a glass fiber composite material, and comprises the following steps: stirring and reacting an organic silicon source, a solvent, a catalyst and water at 30-50 DEG C for 30-90 min to form a mixed solution A; uniformly mixing divinylsiloxane-benzocyclobutene and the solvent to form a mixed solution B, adding the mixed solution B into the mixed solution A, and heating to 65-80 DEG C for 1-3 h; adding an organic phase after the reaction is completed, washing with water for several times until neutral, removing the solvent by vacuum distillation, and vacuum drying; and obtaining the thermosetting benzocyclobutene-based MQ silicone resin. The thermosetting benzocyclobutene-based MQ silicone resin has excellent dielectric properties, mechanical properties, heat resistance and chemical stability, and the cured resin formed by thermal crosslinking has the properties of low dielectric, high tensile strength, high bending strength, chemical stability and heat resistance.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Reaction products containing benzoxazine, and their cured products

In reaction products obtained by condensation reactions of phenols, diamines, and formaldehyde, the mass loss during thermal curing is reduced. [Solution] The reaction product according to the embodiment includes a first product of formula (1) and a second product of formula (2), wherein the peak area of ​​the second product is 5-15% of the total peak area of ​​the reaction product by HPLC, and the combined peak area of ​​the first and second products is 65-75%. JPEG2026059928000018.jpg80141
Owner:DKS CO LTD

resin sheet

The present invention provides a resin sheet formed from a resin composition containing (A) a thermosetting component and (C) a thermally conductive filler, wherein the (A) thermosetting component contains a maleimide resin, and the thermal diffusivity of the resin sheet after thermal curing is 1.0×10 ‑6 m 2 / s or more, and when observing a region (P1) in a cross section (P) of the resin sheet, the following mathematical formula (F1) is satisfied: the cross section (P) is a cross section taken along a direction perpendicular to the surface of the resin sheet; the region (P1) is a region enclosed by a square having a side length four times the thickness of the resin sheet and including both surfaces of the resin sheet; 0.25 ≤ Ld / Lt ≤ 1... (F1). Ld: The length of the thermally conductive filler (C) having the largest cross-sectional diameter in the perpendicular direction in the perpendicular direction; Lt: The length of the resin sheet in the perpendicular direction.
Owner:LINTEC CORP

Thermocuring device for release film processing

The utility model belongs to the technical field of release film curing devices, and discloses a thermocuring device for release film processing, which comprises a shell part, a conveying channel is formed in the shell part, two air guide parts are mounted on the shell part, each air guide part comprises a hot air guide unit and a heat exchange tube, and the hot air guide units are communicated with the heat exchange tubes. A first gas conveying channel for conveying hot gas flow is formed in the hot gas guiding unit, and a second gas conveying channel is formed in the heat exchange pipe. A heat exchange part is arranged between part of the heat exchange pipes and the first gas conveying channel in a sleeved mode, a third conveying channel is formed in the heat exchange part, and air in the third conveying channel exchanges heat with gas in the heat exchange pipes. The heat exchange piece guides external air to flow, so that the external air exchanges heat with hot air in the heat exchange pipe, and the hot air is conveyed back into the first air conveying channel, so that the device can recycle the hot air, reduce heat loss, improve the thermocuring efficiency of the release film and reduce the use cost of the device.
Owner:FOSHAN JIASIDA THIN FILM TECH CO LTD

High-elasticity weather-resistant composite waterproof roll material and preparation method thereof

The application relates to the technical field of layered products, and discloses a high-elasticity weather-resistant composite waterproof roll material and a preparation method thereof. The roll material is a layered product, and sequentially comprises an upper reinforcing layer, a core layer and a lower reinforcing layer from top to bottom. The core layer is prepared from a bio-based polyurethane prepolymer prepared by reacting a microbial fermentation source long-chain polyester diol with an aliphatic diisocyanate, and is formed by thermal curing in cooperation with a chain extender, a catalyst and inorganic fillers. The long-chain polyester diol is obtained by polycondensation of a hydroxyl fatty acid monomer with a carbon chain length of ten to eighteen, and does not contain a double bond structure in the molecular chain. The application eliminates weak sites of photo-oxidative chain scission in the chain segment from the root of the molecular structure, blocks a chain scission path caused by ultraviolet rays, and maintains the elastic structure integrity of the roll material under long-term illumination.
Owner:SHANDONG QINGCHI WATERPROOF MATERIAL CO LTD

A wear-resistant phenolic resin and preparation method and application in sandpaper

The invention belongs to the technical field of phenolic resins, and discloses a wear-resistant phenolic resin, a preparation method and an application of the wear-resistant phenolic resin in sandpaper. The wear-resistant phenolic resin comprises 100 parts by weight of phenolic resin, 5-25 parts by weight of isocyanate-based fluorine-containing hyperbranched polyimide and 1-1.5 parts by weight of a toughening agent; the hyperbranched polyimide has a dendritic three-dimensional molecular chain structure, high mechanical strength and strong wear resistance, and contains an isocyanate group. During the thermal curing process, the isocyanate group reacts with the phenolic hydroxyl group of the phenolic resin and the hydroxyl group of the toughening agent polyethylene glycol, so that the three are chemically cross-linked, the interface bonding performance of the fluorine-containing hyperbranched polyimide, the toughening agent polyethylene glycol and the phenolic resin is enhanced, the mechanical strength, wear resistance and water resistance of the phenolic resin cured product are improved under the synergistic effect, and the phenolic resin has better practical application in the adhesive for sandpaper.
Owner:GUANGZHOU NO 3 RUBBING MATERIALS CO LTD

Preparation method of water-soluble polyamino phosphorus-nitrogen compound modified titanium carbide compound

The invention discloses a preparation method of a water-soluble polyamino phosphorus-nitrogen compound modified titanium carbide compound, which comprises the following steps: sequentially carrying out nucleophilic substitution on chlorine element in hexachlorotripolyphosphazene molecules by using melamine and ammonia water to synthesize HMN, and then carrying out surface modification on hydroxylated titanium carbide by using HMN to prepare HMN-MXene. And finally, adding the mixture into a mixed solution of an epoxy resin (EP) precursor 1, 4-butanediol glycidyl ether and triethylene tetramine by adopting a solution blending method, so that the obtained mixed solution can be quickly formed at room temperature. After thermocuring treatment, the prepared EP / HMN-MXene composite material is formed by uniformly dispersing surface-wrinkled HMN-MXene nanosheets in an epoxy resin matrix, and has the advantages of low glass transition temperature, excellent flexibility and flame retardant property and fire safety early warning function. Wide application prospects are realized in the fields of flame-retardant polymers, thermal safety monitoring and early warning, flexible sensing and the like.
Owner:STATE GRID ANHUI ELECTRIC POWER CO LTD ELECTRIC POWER SCI RES INST +1

Heating device for thermocuring furnace

The invention discloses a heating device for a thermocuring oven, and belongs to the technical field of thermocuring ovens.The heating device comprises a heating box body, a turnover door plate is arranged on the heating box body, hinges are connected between the turnover door plate and the heating box body, fixing blocks are arranged on the two sides of the heating box body, and heater shells are installed on the fixing blocks; and an extrusion plate is arranged on the heater shell, a fastening bolt is connected between the extrusion plate and the fixing block, and a heating pipe is installed in the heater shell. The heater shell is detachably connected with the fixing block through the extrusion plate and the fastening bolt, the heating pipe is detachably connected with the heater shell through the buckle, and when the heating pipe is damaged or needs to be overhauled, the heating pipe can be rapidly disassembled and replaced, the downtime of equipment is shortened, and the production efficiency is improved; and the workpieces can be automatically popped out of the heating box body after being cured, so that the workpieces are convenient to take.
Owner:SUZHOU AOHE INTELLIGENT EQUIPMENT MANUFACTURING CO LTD

A guide wire hydrophilic thermal curing displacement device

A guide wire hydrophilic heat curing displacement device relates to the technical field of guide wire production and processing equipment, including a heat curing displacement station, the heat curing displacement station includes a driving assembly and a frame body, the driving assembly is installed under the top frame of the frame body; the driving assembly includes a welding base, a telescopic locking assembly, a linear module, a longitudinal driving assembly and a square rail, the linear module, the longitudinal driving assembly and the square rail are respectively installed on the base, and the telescopic locking assembly is installed on the linear module; the telescopic locking assembly includes a roller, a roller seat, a cylinder connecting plate and a telescopic cylinder, the roller is rotatably installed on the roller seat, the roller seat is slidably arranged on the cylinder connecting plate, the telescopic cylinder is fixedly arranged on the cylinder connecting plate and the output end is fixedly connected to the roller seat. The equipment footprint is reduced, collisions between guide wires during transportation are avoided, and the position stability of the guide wire is enhanced. The precise longitudinal movement and positioning of the guide wire tooling are realized, and the production efficiency and product quality are improved.
Owner:HAOFENG INTELLIGENT MANUFACTURING TECHNOLOGY (ZHUHAI) CO LTD

Easily dismantlable resin composition for fixing rotor and dismantling method for rotor

PendingUS20260250479A1Rotational axisPolymer science
There is provided an easily dismantlable resin composition for fixing a rotor which is a resin composition for fixing a rotor used for forming a fixing member (130) of a rotor (100) including a rotor core (110) provided to be fixed to a rotating shaft and provided to include a plurality of hole parts arranged along a peripheral edge part of the rotating shaft, a magnet (120) inserted into the hole part (150), and a fixing member (130) provided in a spacing part between the hole part (150) and the magnet (120), where the resin composition for fixing a rotor contains a thermosetting component, and a cared body obtained after thermally curing the resin composition for fixing a rotor has a structure represented by Formula (1). wi=“152.4” / > (In Formula (1), R1 and R2 each independently represent any of a hydrogen atom, a hydrocarbon group or aromatic group having 1 to 30 carbon atoms, a hydroxyl group, and an alkoxyl group having 1 to 30 carbon atoms.)
Owner:SUMITOMO BAKELITE CO LTD

A rosin-based bio-based benzoxazine, a high-thermal-conductivity liquid-crystal benzoxazine resin, and a preparation method and applications thereof

The application provides a rosin-based bio-based benzoxazine, a high-thermal-conductivity liquid crystal benzoxazine resin and a preparation method and application thereof. First, a binary phenol, an amine and paraformaldehyde are used as raw materials to obtain a double benzoxazine through a Mannich reaction; the double benzoxazine is subjected to an amidation reaction with an amino-containing rosin derivative to obtain a bio-based benzoxazine monomer. The bio-based benzoxazine monomer is subjected to thermal curing to obtain a benzoxazine resin containing a rosin side group. The benzoxazine resin containing the rosin side group has a liquid crystal structure, high heat resistance and high thermal conductivity, and has a good application prospect in the fields of integrated circuits, (LED) lighting and the like. The synthesis process of the application is simple, the reaction condition is mild, the yield is high, the equipment requirement is low, and the application is suitable for large-scale production.
Owner:SHANDONG UNIV

Asymmetric layered pdms electromagnetic shielding material and preparation method thereof

The application discloses a preparation method of an asymmetric layered PDMS electromagnetic shielding material, and specifically comprises the following steps f -Ni, AgNPs@GO powder, AgNPs@GO precursor, AgNWs, f -Ni@GO precursor; through f -Ni@GO precursor and AgNPs@GO precursor to obtain an asymmetric layered aerogel; in combination with AgNWs / PDMS conductive paste, an asymmetric three-layer structure is obtained; vacuum-assisted impregnation of PDMS and thermal curing are performed, and the asymmetric layered PDMS electromagnetic shielding material is obtained. The application further discloses the asymmetric layered PDMS electromagnetic shielding material, and solves the problem that polymer-based electromagnetic shielding composite materials in the prior art are difficult to simultaneously consider high electromagnetic shielding efficiency, low reflection characteristics and absorption-dominant shielding effect under the condition of low filler content.
Owner:XIAN UNIV OF TECH

Easily-processed high-strength bamboo stick and preparation method thereof

The invention relates to the technical field of bamboo sticks, in particular to a high-strength bamboo stick easy to process and a preparation method thereof. The preparation method of the high-strength bamboo stick easy to process comprises the steps of preparation of the modified nanocellulose, preparation of a bamboo stick rough blank and preparation of the bamboo stick. The water-based phenolic resin prepolymer, the nano silicon dioxide and the modified nano cellulose are used as reinforcing modifiers and permeate into the bamboo wood through vacuum pressurization, a synergistic reinforcing structure is formed after thermocuring, the bending strength is improved, the moisture and mildewing phenomena are reduced, the modified nano cellulose is good in hydrophobicity and uniform in dispersion, the toughness can be improved through a flexible interface layer of the modified nano cellulose, and the service life of the bamboo wood is prolonged. And the bamboo canes are subjected to freeze thawing to construct pores and then are subjected to impurity removal by using the composite bio-enzyme, so that the modifier can be assisted to permeate and reinforce the combination, and a'medium temperature-high temperature-medium temperature 'gradient drying is adopted, so that the moisture is controlled, the cracking deformation is prevented, and the yield is improved.
Owner:HUNAN JINBAOLAI BAMBOO PROD CO LTD

A method for preparing a long-lasting anti-icing coating for wind turbine blades

The present invention discloses a method for preparing a long-lasting anti-icing coating for wind turbine blades, comprising preparing a filler with high photothermal properties, preparing a spray coating, constructing a hydrophobic-photothermal-energy storage coating, and performing thermal curing and demolding treatments, thereby finally obtaining a long-lasting anti-icing coating. By meticulously designing the regular microstructure of the coating surface, a combination of low surface energy, low natural light reflection, and high photothermal conversion efficiency is achieved, thereby maximizing the capture and conversion of natural light into thermal energy, and efficiently storing it in an integrated paraffin material. At extremely low temperatures, the stored thermal energy is gradually released, effectively preventing ice from forming on the blade surface. The coating perfectly integrates photothermal conversion, energy storage, and intelligent hydrophobic functions, significantly improving the anti-icing efficiency and durability, and solving the problems of low photothermal conversion efficiency and difficult-to-sustain anti-icing effect of traditional coatings. The coating has broad application prospects in outdoor equipment such as wind turbine blades.
Owner:XIAN UNIV OF TECH