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246 results about "Silicone Gels" patented technology

Synthetic organosiloxane gels that are formed from synthetic polymers of silicone oxide with organic sidechains (polydimethylsiloxane) by lengthening the polymer chains. Unlike silicone elastomers, they are not treated with amorphous silica. They are used as fillers in breast implants.

Preparation method of heat-conducting silica gel for power module chip packaging

The invention discloses a preparation method of heat-conducting silica gel for packaging a power module chip, which comprises the following steps of: optimizing diamond micro-powder filling, surface etching and particle size compounding, so that the heat conductivity coefficient of the prepared heat-conducting silica gel can reach 3.8-4.5 W / (m.K) which is far higher than that of common silica gel (generally less than or equal to 3.0 W / (m.K)); meanwhile, the specific surface area of the diamond and the interface bonding force between the diamond and silica gel are improved through surface etching, the interface thermal resistance is reduced, a more efficient heat conduction path is formed, the packing stacking density is maximized through particle size compounding, air gaps are reduced, and a more stable and communicated heat conduction network is constructed; the SiC device is high in power density and high in switching speed, and the chip junction temperature is the key to restrict performance and reliability. The material can quickly and uniformly transfer heat of a chip to a heat dissipation substrate, obviously reduce junction temperature and temperature gradient in a module, and improve power density and long-term reliability.
Owner:合肥钧联汽车电子有限公司

Discrete device packaging structure based on direct lead bonding

The invention discloses a discrete device packaging structure based on direct lead bonding, which belongs to the technical field of semiconductor device packaging and comprises a power semiconductor chip, a drain metal substrate, a grid lead terminal, a drain lead terminal, a bonding wire and a supporting shell. The drain electrode metal substrate is connected with the lower surface of the power semiconductor chip through solder. The gate metal electrode on the upper surface of the power semiconductor chip is connected with the gate lead terminal through a bonding wire, and the source metal electrode on the upper surface of the power semiconductor chip is connected with the source lead terminal through solder. The interior of the supporting shell is filled with silica gel or an injection molding process, and the supporting shell covers the power semiconductor chip to serve as an insulating medium. The power density of the device is improved, the parasitic parameter of the whole device is reduced, and the reliability of the interconnection structure is improved.
Owner:XI AN JIAOTONG UNIV

Preparation method of functional additive of antibacterial and mildew-proof dry-mixed putty mortar

The invention relates to the technical field of building materials, and discloses a preparation method of a functional additive of antibacterial and mildew-proof dry-mixed putty mortar, which comprises the following steps: dispersing an inorganic porous carrier in water, and adding a plant polyphenol solution for adsorption loading; then adding soluble silicate, adjusting the pH value of the system to be acidic or weakly acidic, and carrying out in-situ gelation reaction to form a silica gel blocking layer on the surface of the carrier; and adding a metal salt solution to carry out heating coordination reaction, and carrying out solid-liquid separation, washing, drying and crushing to obtain a finished product. Intelligent slow release and oxygen isolation protection of active components are achieved by constructing a pH response type silica gel layer and a metal-polyphenol coordination network, the additive effectively solves the problems of serious delayed coagulation and oxidation discoloration caused by plant polyphenol in an alkaline putty system, an active silicon source generated by dissolution of the silica gel layer can be subjected to a pozzolanic reaction, and the pH response type silica gel layer and the metal-polyphenol coordination network can be used for preparing the alkaline putty. The bonding strength of the putty layer is obviously improved.
Owner:JIANGXI RUNHAI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Silicone gel dressing and production process thereof

The invention discloses a silicone gel dressing and a production process thereof. The silicone gel dressing comprises a three-dimensional cross-linked organic silicone elastomer network and a stably dispersed functional unit, wherein the functional unit comprises a nanosheet layer reinforcing structure formed by stripping organic modified layered silicate and polysaccharide-based microspheres for encapsulating bioactive factors. The production process comprises the steps of nano pre-dispersion preparation, main component mixing and defoaming, active microsphere mild mixing and gradient curing structure forming. The contradiction between technical effect analysis and flexibility is solved through a nanosheet layer enhanced structure, the polysaccharide-based microspheres achieve slow release of bioactive factors, the air permeability and the adhesion are improved through a sandwich porosity gradient structure, the process is accurate and controllable, and the method is suitable for scar management.
Owner:GUANGXI XIEJIAN BIOTECHNOLOGY CO LTD

Insulation state detection method, system, equipment and medium

The invention provides an insulation state detection method, system, equipment and medium, and relates to the field of electronic device detection.The method comprises the steps that a discharge signal of a power module is obtained, high-pass filtering and wavelet noise reduction are conducted on the discharge signal, and a discharge pulse is obtained; recording the morphology change of the bubbles at the three bonding points of the substrate, the electrode and the silica gel of the power module; analyzing the discharge pulse based on a phase resolution partial discharge map to obtain partial discharge parameter changes, and classifying the partial discharge parameter changes to obtain insulation defect types; and performing evaluation according to the morphology change of the bubbles and the insulation defect type to obtain an insulation degradation state. On the basis of collaborative analysis of bubble evolution and discharge characteristics, the insulation state of the high-voltage power module is monitored, in-situ observation of bubble evolution of a glue-solid interface is realized, discharge signal characteristics are extracted, and a mapping relation of bubble form-discharge mode-signal parameters is established.
Owner:NORTH CHINA ELECTRIC POWER UNIV

High and low temperature resistant organosilicone gel and preparation method and application thereof

The invention discloses a high and low temperature resistant organosilicon gel and a preparation method thereof, the organosilicon gel comprises a component A and a component B, the component A is prepared by mixing 100 parts of vinyl-terminated silicone oil and 0.05-0.2 part of a platinum catalyst, and the component B is prepared by mixing 50-70 parts of vinyl-terminated silicone oil, 20-40 parts of a chain extender, 5-15 parts of a cross-linking agent, 0.05-0.2 part of an inhibitor and 0.05-0.3 part of a heat-resistant additive. The organic silicon gel disclosed by the invention is low in viscosity, good in fluidity, colorless and transparent, good in flexibility and low stress after being cured, good in adhesion effect on various base materials, excellent in electric insulativity and high and low temperature resistance, capable of tolerating a high temperature of 240 DEG C for a long time, and free of chain segment crystallization behavior at a low temperature of-77 DEG C. The organic silicon gel is used for packaging protection of various different substrates and electronic components, the reliability and the service life of the components, high-power semiconductor modules and the like at high temperature can be remarkably improved, and the reliability of electronic equipment is guaranteed.
Owner:CHINA BLUESTAR CHENGRAND CO LTD +1

Flexible flame-retardant indoor photoelectric composite cable with multi-layer composite compression-resistant structure

The utility model relates to a flexible flame-retardant indoor photoelectric composite cable with a multilayer composite compression-resistant structure, which comprises a central supporting unit, a cable core assembly, a composite reinforcing layer, a flame-retardant layer and an outer sheath which are sequentially arranged from inside to outside, the adjacent elastic rods are bonded through hot melting to form a 90-degree orthogonal supporting structure, the cable core assembly comprises optical fiber units and power conductors which are symmetrically distributed in four quadrants of a central supporting unit, one optical fiber unit and one power conductor are arranged in each quadrant, and the four macromolecule elastic rods arranged in a cross shape form a supporting framework. A stable internal supporting structure is provided for the whole optical cable, it is ensured that the optical cable structure is not prone to deformation in a complex environment, the section of the macromolecule elastic rod is fan-shaped, the containing groove is filled with thixotropic silica gel, the buffering and damping effect is further enhanced, internal assemblies can be better protected, and the optical cable is suitable for different installation and use environments.
Owner:JIANGSU YOUMI INTELLIGENT TECH CO LTD

Silica gel soaked knitted gloves and preparation method thereof

The invention provides a silica gel soaked knitted glove and a preparation method thereof, the preparation method comprises the following steps: S1, preparing liquid silica gel slurry: mixing a silica gel raw material A and a silica gel raw material B, adding a diluent, uniformly stirring, then adding a defoaming agent and an antistatic agent, uniformly mixing, and defoaming to obtain the liquid silica gel slurry; s2, preheating the glove blank: sleeving the knitted glove blank on a ceramic hand mold, and then preheating; s3, gum dipping: dipping the ceramic hand mold sleeved with the knitted glove blank into liquid silica gel slurry for gum dipping; s4, glue uniformizing, wherein the ceramic hand mold sleeved with the knitted glove blank is subjected to glue draining and rotating; s5, drying, wherein the ceramic hand mold sleeved with the knitted glove blank is pre-dried and then dried at the temperature of 100-130 DEG C; and S6, soaking and drying. The silica gel soaked knitted gloves prepared by the method are softer, the hand back knitting holes have air permeability, and the palm face silica gel layer has excellent heat insulation performance and anti-skid performance.
Owner:NANTONG QIANGSHENG SAFETY PROTECTION TECHNOLOGY CO LTD

An antifouling coating, a method for preparing the same and use thereof

The present application relates to the technical field of marine antifouling coating, in particular to an organic-inorganic composite antifouling coating, a preparation method and application thereof.The raw materials of the antifouling coating include A component and B component in a weight ratio of (7-9):1, wherein the A component includes the following raw materials in parts by weight: 50-75 parts of hydroxyl silicone resin, and 5-20 parts of antifouling agent; the B component includes the following raw materials in parts by weight: 10-30 parts of modified silicone resin, 20-80 parts of silica gel, and 1-10 parts of auxiliary agent; the hydroxyl silicone resin is a two-end hydroxyl silicone oil, and the hydroxyl content in the hydroxyl silicone resin is 0.025-3 wt%.The present application provides a low surface energy antifouling coating applied to marine vessels, and the coating has a uniform and staggered low surface energy surface and a hydrogel surface.The low surface energy antifouling coating has good film elasticity, low surface tension, good impact resistance, high scratch resistance, and a long effective service life of more than seven years.
Owner:HUNAN AEROSPACE SANFENG SCI & TECH CO LTD

Cosmetic composition comprising three different dosage forms from one another

The disclosed content provides a cosmetic composition comprising three different dosage forms from one another, comprising: a first phase comprising an oil-in-water (O / W) type or a water dispersible dosage form; the second phase comprises a silica gel and a hydrogel; and a third phase including a water-in-silicon (W / S) type or a water-in-oil (W / O) type. The cosmetic composition comprising three different dosage forms according to one embodiment is formed by uniformly mixing the three different dosage forms, thereby being able to exhibit excellent adhesion and durability while making the skin feel light. In addition, the cosmetic has a skin care function and a makeup function, so that the makeup process can be simplified.
Owner:AMOREPACIFIC CORP

Flame-retardant ceramic voltage-resistant silica gel composite material and preparation method thereof

The invention relates to a flame-retardant ceramic voltage-resistant silica gel composite material and a preparation method thereof, and the flame-retardant ceramic voltage-resistant silica gel composite material comprises the following components in parts by weight: polysiloxane; a flame retardant enhancing component; a modified pressure-resistant ceramic component; a wear-resistant reinforcing component; polytetrafluoroethylene resin; a lubricating rheological agent; the modified pressure-resistant ceramic component is obtained by pretreating tin oxide particles with a low-density high polymer material and ethyl acetate; and preferably, the tin oxide particles are selected from tin oxide particles with micron-sized particle sizes; the flame-retardant ceramic voltage-resistant silica gel composite material prepared according to the process disclosed by the invention has an improved voltage-resistant characteristic while maintaining good mechanical properties.
Owner:DONGGUAN LONGSUN MATERIAL TECHNOLOGY CO LTD

Silica for waterborne wood coatings and method for its preparation

The present application belongs to the field of coating technology, and discloses a kind of silica for water-based wood coatings and a preparation method thereof.The preparation steps include: preparing a silica solution, adding sulfuric acid to form a silica gel, aging, heating and adjusting the pH to be alkaline, maintaining the condition and adding water glass and sulfuric acid solution, adding a silane coupling agent for surface modification after warming, adjusting the pH to be acidic after aging, re-aging to form a precipitate, washing with pure water, ammonium salt aqueous solution and pure water in sequence, adding a dispersant (HLB value ≥ 15) and an emulsifier, dispersing uniformly under a dispersing machine and an emulsifying machine, and spray drying and air jet pulverizing.The silica has a uniform structure, is easy to disperse, has a particle size of 4.0-6.0 μm, an oil absorption of 2.70-3.00 g / g, a porosity of 1.90-2.20 cm 3 / g, a conductivity of < 50 us / cm, and a loss on ignition of 12.0-16.0%.When used in water-based wood coatings, it has good transparency, weather resistance, scratch resistance and chemical resistance.
Owner:广州凌玮科技股份有限公司 +1

Ecological decorative plate and preparation method thereof

The invention provides an ecological decorative plate and a preparation method thereof, and belongs to the technical field of novel wall materials. The ecological decorative plate comprises perlite particles, cement, inorganic silica gel, a powder curing agent, glutinous rice glue, a waterproof agent and fibers. The preparation method comprises the main technical means of cement-inorganic silica gel-glutinous rice glue composite bonding, fiber and double-layer zinc-aluminum-magnesium net multi-scale enhancement, waterproof agent and self-repairing microcapsule synergistic protection, powder curing agent and stepped curing process optimization, gradient structure design and silane coupling agent interface chemical bonding and the like. The technical problems that a traditional cement-based perlite plate is large in brittleness, prone to cracking, prone to stripping deformation caused by low structural enhancement efficiency, poor in waterproofness, long in maintenance period, difficult to give consideration to environmental protection and performance and the like are solved, and the effects of improving the breaking strength, reducing the water absorption rate, shortening the maintenance period, reducing the cost and the like are achieved. And meanwhile, the comprehensive technical effects of high strength, high toughness, durability and environmental protection are achieved.
Owner:HUAYI BUILDING MATERIALS TECH CO LTD

Composite heat-conducting silicone grease and preparation method thereof

The invention discloses composite heat-conducting silicone grease and a preparation method thereof, and relates to the technical field of heat dissipation materials. The composite heat-conducting silicone grease is prepared from the following components in parts by mass: 5 to 8 parts of base oil, 3 to 6 parts of three-dimensional gel, 85 to 95 parts of composite heat-conducting filler and 0.5 to 3 parts of powder treating agent, and the three-dimensional gel is prepared from micro-crosslinking organic silicon gel and nano hierarchical pore silicon dioxide microspheres according to the mass ratio of (2 to 4) to (1 to 2). According to the invention, a unique gel network is formed in the base oil through the three-dimensional gelling agent, and the three-dimensional gelling agent and the composite heat-conducting filler have a synergistic effect, so that the product has high heat conductivity coefficient, extremely low oil yield, excellent pump-out resistance and certain self-healing ability, and the long-term reliability and the service life of the heat-conducting silicone grease are remarkably improved.
Owner:SHENZHEN BORNSUN IND CO LTD

Soft skin adhesive composition

A silicone gel-forming composition is provided that contains an α-dimethylvinylsiloxy-ω-dimethylhydride-terminated polydimethylsiloxane, an α-dimethylvinylsiloxy-ω-n-butyl-terminated polydimethylsiloxane, and a hydrosilylation catalyst. Upon curing, the gel has good adhesion to skin and is painless to apply and remove from the skin.
Owner:GELEST TECHNOLOGIES INC

Bone-integrative degradable silicone gel scaffold for treating bone nonunion and method of making same

The application discloses a bone-integrative degradable silica gel support for treating bone nonunion and a preparation method thereof, and relates to the technical field of medical implant materials.The preparation method comprises the following steps: hydrogen-containing silicone oil and allyl glycidyl ether are subjected to a hydrosilylation reaction under the action of a platinum catalyst to generate silicone oil containing an epoxy group, then the epoxy group is subjected to ring-opening under the action of a catalyst to obtain silicone oil containing a phosphate group in a side chain; carboxyl-terminated polylactic acid-glycolic acid copolymer is mixed with the silicone oil containing the phosphate group in the side chain, and a condensation reaction is carried out under the action of a condensing agent and a catalyst to obtain a PLGA-P-PDMS-PLGA triblock copolymer; the triblock copolymer, a reactive diluent, a photoinitiator and inorganic reinforcing fillers are mixed to obtain 3D printing slurry; and the printing slurry is printed into a designed bone-integrative support according to set printing parameters by using a light-curing 3D printing technology.The application endows the material with intrinsic osteogenic activity, and realizes the unification of bioactivity, shape memory function and mechanical support.
Owner:JILIN UNIVERSITY

A novel waterproof silicone gel box

This utility model discloses a novel waterproof silicone gel box, including a base box and a lid. A connecting rib is integrally formed along one edge of both the base box and the lid, and the base box and lid open or close using the connecting rib as a fulcrum. Two outwardly protruding snap-fit ​​edges are integrally formed on the outer side of the base box away from the connecting rib. Two protruding plates are integrally formed on the outer side of the lid away from the connecting rib, and snap-fit ​​protrusions are integrally formed on the inner wall of the protruding plates. The lid is fitted onto the base box by the connecting rib, with the protruding plates attached to the surface of the snap-fit ​​protrusions, and the snap-fit ​​protrusions are positioned on the snap-fit ​​protrusions. This utility model has a reasonable structural design. When the lid is closed, the snap-fit ​​protrusions and snap-fit ​​protrusions provide positioning, improving installation convenience and the stability and reliability of the closing mechanism. Furthermore, the two snap-fit ​​protrusions working in conjunction with the two snap-fit ​​protrusions ensure no gaps at the connecting edges, improving the waterproof performance after connection and making it highly versatile.
Owner:中山市知域照明科技有限公司

Method for preparing highly uniform silicone elastomer gel by accurately controlling in-situ cross-linking reaction

PendingCN121628119ASilicone GelsPolymer science
The invention discloses a method for preparing highly uniform silicone elastomer gel by accurately controlling in-situ cross-linking reaction, and relates to the technical field of preparation of high polymer materials and organic silicone gel. The invention relates to a silicone sealant, which comprises the following components: a dispersion medium: 60 wt%-90 wt% of polyorganosiloxane; a first reactant: 10 wt%-30 wt% of polyorganosiloxane containing at least two aliphatic unsaturated groups in the molecule; a second reactant: 0.5 wt%-10 wt% of polyorganosiloxane, the molecule of which at least contains two silicon-bonded hydrogen atoms (Si-H); the catalyst is a platinum-based catalyst and is used for promoting the hydrogen silicification reaction. The preparation method comprises the following steps: 1, mixing a first reactant and a second reactant in a dispersion medium with the viscosity of 2-100 cSt, and removing oxygen through nitrogen substitution; and 2, adding a platinum catalyst into the mixture obtained in the step 1, and carrying out an in-situ cross-linking reaction on the polysiloxane containing the aliphatic unsaturated group and the polysiloxane containing the silicon-bonded hydrogen atom so as to directly form particles.
Owner:SHANGHAI ZHONGKAI KECHUANG BIOTECHNOLOGY CO LTD +3

Silica gel remaining needle patch

The utility model discloses a silica gel indwelling needle patch, and relates to an indwelling needle patch. Comprising a recording strip, release paper, a polyurethane film layer, a microporous silica gel layer, a silica gel adhesive tape strip and an embossed protective layer, the release paper is divided into a first part and a second part, the first part of the release paper is adhered to the polyurethane film layer, an opening is formed in the center of the first part, and the recording strip is arranged on the outer surface of the second part of the release paper; the polyurethane film layer is adhered to the microporous silica gel layer; one surface of the embossed protective layer is divided into a first area and a second area, and the microporous silica gel layer and the silica gel adhesive tape strip are respectively adhered to the first area and the second area of the embossed protective layer. Due to the adoption of the design of the microporous silica gel layer, the air permeability of the indwelling needle patch is improved, the risk of curling and falling off is reduced, the comfort and the fitting feeling of a product are improved, the irritation and the injury to the skin of a patient are reduced, the practicability is improved, and the indwelling needle patch has certain advantages.
Owner:WINNER MEDICAL CO LTD

Method for synthesizing Beta molecular sieve from fly ash

The invention discloses a method for synthesizing a Beta molecular sieve from fly ash, and belongs to the technical field of fly ash resource utilization. The method comprises the following steps: adding sodium carbonate into fly ash as a raw material, mixing and calcining to obtain activated fly ash which is easily soluble in an acidic medium; adding sulfuric acid to decompose the sintered product to dissolve the sintered product, heating and aging to separate silicon from aluminum to obtain silica gel and a metal salt solution, preparing white carbon black from the silica gel, and separating and purifying the metal salt solution to prepare a sodium metaaluminate solution; the preparation method comprises the following steps: putting white carbon black into a sodium metaaluminate solution, adding a template agent, uniformly stirring, putting into a reaction kettle, and crystallizing at high temperature to prepare the Beta molecular sieve. According to the method, the problem of excessive impurities in the traditional method for preparing the molecular sieve from the fly ash is better solved, silicon and aluminum elements in the fly ash can be fully extracted, and the Beta molecular sieve with fewer impurities is prepared, so that green, refined and efficient utilization of the fly ash is realized.
Owner:JILIN UNIVERSITY

Method for preparing silicon-nitrogen compound fertilizer based on solid waste of power plant, compound fertilizer product and application of product

The invention discloses a method for preparing a silicon-nitrogen compound fertilizer based on solid wastes of a power plant, a compound fertilizer product and application of the product. A silicon component is extracted from fly ash by adopting an alkali dissolution process and is converted into silica gel; carrying out calcination activation treatment on the desulfurized gypsum, and converting the desulfurized gypsum into semi-hydrated gypsum which is used as a natural adhesive matrix of the fertilizer; ammonium bicarbonate generated in the ammonia-process carbon capture process is used as a nitrogen source; mixing the semi-hydrated gypsum, fly ash, silica gel and ammonium bicarbonate, granulating, and drying to obtain the slow-release silicon-nitrogen compound fertilizer. Synergistic recycling of the solid waste of the power plant and the carbon capture product is achieved, and efficient environment-friendly fertilizer is provided for agriculture.
Owner:SHENZHEN ENERGY BAODING POWER GENERATION CO LTD

Hot bending tempered glass film

The utility model discloses a hot bending tempered glass film which comprises a hot bending glass substrate, a sandwich adhesive layer and an epoxy resin adhesive edge sealing layer. The edge of the hot bending glass substrate is finely polished, so that the edge is smooth and is not easy to warp. The sandwich glue layer is arranged on the lower surface of the hot bending glass base material, is used for bonding the hot bending glass base material and a mobile phone screen, and comprises a high-transmittance silica gel coating layer, a first base material layer, a silica gel filling layer, a second base material layer and an OCA acrylic glue coating layer which are sequentially arranged from top to bottom. And the epoxy resin adhesive edge sealing layer is used for sealing the edge of the sandwich adhesive layer to prevent dust and impurities from entering. According to the utility model, through the multi-layer sandwich glue layer design of the high-transmittance silica gel coating layer, the silica gel filling layer and the OCA acrylic glue coating layer and the epoxy resin glue edge sealing process, rapid exhaust, strong bonding effect and automatic filling of screen radian tolerance can be realized, bubbles and white edges are effectively reduced, the bonding effect is improved, and the product quality is improved. And the requirements of users on aesthetic property and practicability are met.
Owner:SHENZHEN BASEUS TECH CO LTD

Medical silica gel dressing fixing adhesive tape and fixing method thereof

PendingCN122075239Aquick releaseinfection controlBandagesSilicone tapeDrug release
The invention belongs to the field of medical instruments, and discloses a medical silica gel dressing fixing adhesive tape which comprises an adhesive tape body, and the adhesive tape body sequentially comprises a carrier layer, a silica gel adhesive layer and a stripping liner from outside to inside; the carrier layer is made of an elastic breathable material, and the silica gel adhesive layer is made of medical-grade organic silica gel; a plurality of first microcapsules are dispersed in the silica gel adhesive layer, the first microcapsules are drug-loaded microcapsules, and wall materials of the drug-loaded microcapsules are made of materials responding to the pH value, enzyme concentration or temperature change of a wound environment. Enzyme or ions are released after the second microcapsule is broken, the wall material of the first microcapsule is actively degraded, cascade response of'exudate increase-developing prompt-drug accelerated release 'is realized, a large amount of drugs are quickly released when the exudate appears, and infection or inflammation is effectively controlled.
Owner:SUZHOU YINGSHI POLYMER MATERIALS CO LTD

Novel half-bridge silicon carbide module

The invention discloses a novel half-bridge silicon carbide module which comprises a heat dissipation bottom plate, the upper surface of the heat dissipation bottom plate is fixedly connected with a power module and a shell, the shell is arranged around the power module, the upper portion of the shell is connected with an upper cover in a buckled mode, and the upper cover is used for protecting the power module. A space formed by the heat dissipation bottom plate, the shell and the upper cover is filled with silica gel; through the reasonable layout of the heat dissipation bottom plate, the power module, the shell and the upper cover, the circuit path is shorter and more regular, the generation of stray inductance can be effectively reduced through the shorter circuit path, the voltage spike of the module in the switching process is reduced, the switching loss is reduced, and the efficiency and the reliability of the module are improved.
Owner:合肥钧联汽车电子有限公司

Method for preparing high-oil-absorption and high-reinforcement white carbon black by using fluorine-containing silicon slag

The invention belongs to the field of chemical production, and discloses a method for preparing high-oil-absorption and high-reinforcement white carbon black by using fluorine-containing silicon slag, which comprises the following steps: adding liquid-containing fluorine-containing silicon slag into a hot aluminum hydroxide solution to react until the liquid-containing fluorine-containing silicon slag is clear, and adding water to dilute to obtain a solution A; heating the solution A, adding dilute sulphuric acid in stages to neutralize to a target pH value, stirring, filtering, and carrying out countercurrent washing on the silica gel with pure water until the conductivity of washing water reaches the standard; adding an organic azeotropic solvent into the desalted silica gel, heating and preserving heat, and evaporating out part of the solvent to obtain a white carbon black primary product; and calcining the primary product at 500-800 DEG C, and crushing to obtain the target white carbon black. According to the invention, high-value utilization of the fluorine-containing silicon slag is realized, and the problems of poor reinforcing effect, low oil absorption value and insufficient activity of a traditional process product are solved.
Owner:YUNNAN KAIWEITE NEW MATERIALS CO LTD +1

A strongly bonded glaze layer for stain-resistant ceramic tiles, its preparation method and application

ActiveCN121021196BResist interlaminar shear stressGood toughening effectSilicone GelsGlaze
This invention discloses a strongly bonded surface glaze layer for stain-resistant ceramic tiles, its preparation method, and its application, relating to the field of ceramic tile manufacturing technology. The surface glaze layer comprises a microcrystalline glaze composite layer and a stain-resistant surface layer. The microcrystalline glaze composite layer contains a core-shell structured aluminum zirconium phosphate, and the stain-resistant surface layer contains a core-shell structured calcium-activated silica gel. The two layers are sintered to form Ca-Zr-P-O chemical bonds. This achieves strong interfacial bonding and, through the construction of a dense nanocomposite structure for synergistic stain resistance, results in excellent and long-lasting stain-resistant performance, significantly improving the stain resistance and service life of the ceramic tile. It solves the problem of stain-resistant layers easily detaching and failing during long-term use in existing ceramic tile technologies.
Owner:JIANGXI ZHONGCHEN NEW MATERIALS CO LTD

Silica gel repair mortar composite material layer

The utility model provides a silica gel repair mortar composite material layer which comprises a composite material layer body, and the composite material layer body comprises a mortar layer, a first connecting keel layer, a second connecting keel layer, a first silica gel layer, a second silica gel layer, a first waterproof layer, a second waterproof layer, a first outer decoration layer and a second outer decoration layer. The first connecting keel layer is arranged between the mortar layer and the first silica gel layer, and the second connecting keel layer is arranged between the mortar layer and the second silica gel layer, so that the bonding area between the mortar layer and the first silica gel layer and the bonding area between the mortar layer and the second silica gel layer are enlarged, and the connecting strength between the mortar layer and the first silica gel layer and the connecting strength between the mortar layer and the second silica gel layer are improved; and the effective structural layer cracks.
Owner:顾红霞

Silicone gel composition of walnut extract

PendingUS20260248869A1Silicone GelsMedicine
The present invention provides a new silicone gel composition suitable for preparing an anti-herpes viruses product of natural origin. The new composition is capable of permeating at the target epidermis side of the skin. The new composition is capable of retaining in the target epidermis side of the skin for a certain period. The present invention also relates to the topical use of the silicone gel composition for the treatment of viruses of the herpes family at a posology regime.
Owner:HARTINGTON BUSINESS

Self-crosslinking oil-resistant fluorosilicone gel, preparation method and application thereof

PendingCN122356483APolymer sciencePtru catalyst
This invention discloses a self-crosslinking oil-resistant fluorosilicone gel, its preparation method, and its applications, belonging to the field of special polymer materials technology. The preparation method of the gel includes: ring-opening copolymerization of trifluoropropylmethylcyclotrisiloxane and octylmethylcyclotetrasiloxane under alkaline catalysis to obtain a prepolymer; then reacting it with 3-(methacryloyloxy)propyltrimethoxysilane to introduce self-crosslinking groups, followed by post-treatment to obtain a self-crosslinkable prepolymer; finally, adding an organotin catalyst allows for rapid curing at room temperature to form a three-dimensional network structure. This invention imparts extremely low oil swelling rate to the material by introducing fluorinated segments, while achieving rapid self-crosslinking curing under mild conditions through molecular design. The resulting material possesses excellent oil resistance, ease of application, and good interfacial adhesion, making it suitable for sealing and plugging in harsh oil environments in aerospace, petrochemical, and other fields.
Owner:HAINAN POWER GRID CO LTD +1