325 results about "Silicone Gels" patented technology

The invention relates to a preparation method of a flexible solid hydrogen storage bed body, which comprises the following steps: S1, mixing 74-90% by mass of hydrogen storage alloy powder and 3-16% by mass of carbon-based heat conduction material for 20-50 minutes in a mechanical stirring manner to obtain a dry powder mixture; s2, adding an organic silicon material with the mass fraction of 5-16%, and continuously mechanically stirring for 1-5 hours to obtain a non-dry powder mixture; and S3, carrying out vacuum drying on the non-dry powder mixture in the S2 at 60-100 DEG C for 8-20 hours, and naturally cooling to room temperature to obtain the required novel non-dry powdery hydrogen storage bed body. Through the synergistic effect of the hydrogen storage alloy, the expanded graphite and the double-liquid silica gel, the flexible solid hydrogen storage material is formed on the basis of optimizing the material ratio and the process sequence. The synergistic effect of the materials breaks through the defect that a traditional hydrogen storage bed body is too high in rigidity or in a loose powder state, and finally the hydrogen storage bed body has high hydrogen storage efficiency, stable cycle life and excellent safety performance.

The invention discloses a preparation method and application of a double-layer sound transmission type berberine-loaded gelatin microsphere slow-release antibacterial gel dressing, and belongs to the technical field of gel dressings. The preparation method comprises the following steps: taking vinyl silicone oil and silicon dioxide as raw materials, preparing upper-layer silica gel by adopting a double-component uniform mixing method, and then laminating the upper-layer silica gel and lower-layer berberine-loaded gelatin microsphere hydrogel by adopting a self-laminating method, thereby obtaining the double-layer sound-transmission type berberine-loaded gelatin microsphere slow-release antibacterial gel dressing. By means of the broad-spectrum antibacterial function of berberine, the efficient drug loading function and slow drug release function of gelatin microspheres, the sound transmission and swelling functions of lower hydrogel and the supporting function of upper hydrogel, ultrasonic inspection is conducted through a dressing covering layer, an ultrasonic scanning supporting plane is provided, ultrasonic waves penetrate through the dressing, good imaging is formed, and the application prospect is wide. And antibacterial and repairing effects on local wounds are realized at the same time.

The invention belongs to the technical field of silicon dioxide materials, and relates to a preparation method of medicinal silicon dioxide by a gel method, which comprises the following steps: S1, filtering water glass by an inorganic treating agent, treating the filtered water glass by multiple layers of cation exchange resin to obtain a water glass solution, and treating a sulfuric acid solution by multiple layers of cation exchange resin; s2, firstly adding the water glass solution in the step S1, and then adding the sulfuric acid solution treated in the step S1 to form silica sol; s3, adding sulfuric acid on the basis of the silica sol formed in the step S2, adjusting the pH value to be acidic, stirring, adding a water glass solution, adjusting the pH value to be alkaline, heating and boosting for aging, adjusting the pH value to be acidic, and aging to form silica gel; and S4, washing the silica gel, and performing two-stage spray drying and screening to obtain the silica gel. Compared with related silica products for Grace medicine, the gel forensic medicinal silica synthesized by the invention has the advantages of better heavy metal content, dioxin control and particle size uniformity and lower impurity content, and can be better applied to the field of medicine.

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.

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.

The invention discloses an optical silica gel for high-flexural impact protection, an adhesive film and a preparation method, and the optical silica gel for high-flexural impact protection is prepared from the following raw materials in parts by weight: 30-60 parts of phenyl vinyl silicone oil, 5-15 parts of phenyl vinyl silicone resin, 20-50 parts of phenyl silicone resin, 0.2-5 parts of phenyl hydrogen-containing silicone oil, 0.5-8 parts of phenyl hydrogen-containing silicone resin and 0.1-0.5 part of an inhibitor, 1-10 parts of a tackifier and 0.1-1 part of a catalyst. The high-flexural impact-resistant optical silica gel for protection has a high refractive index and good physical and chemical stability, and a prepared adhesive film can be stable in property and free of yellowing at a high temperature (100-150 DEG C) for a long time (100 h), and can be cured at a high temperature (85 DEG C) and a high humidity (150 DEG C) for a long time (100 h). The coating is free of fogging in the state of high temperature resistance and humidity of 85 kg / m < 3 >, has good adhesion to various base materials, can maintain considerable mechanical strength, and is excellent in overall performance.

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.

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.

The invention relates to the technical field of batteries, in particular to a diaphragm and a preparation method thereof, a secondary battery and an electric device. The separator comprises: a fibrous membrane; and the gel body is arranged in the pores of the fiber membrane, and the gel body comprises a silica gel matrix and solid electrolyte particles dispersed in the silica gel matrix. According to the diaphragm provided by the invention, the pores of the fiber membrane are filled with the gel, the gel and the fiber membrane form an interpenetrating network structure, the number and efficiency of ion conduction channels are improved, the silica gel matrix is used as a carrier to fix the solid electrolyte particles, and a continuous ion conduction path is formed, so that the ion conductivity of the diaphragm is improved, and the service life of the diaphragm is prolonged. The internal resistance of the battery is reduced, so that the rate capability and the cycle life of the battery are improved; meanwhile, pores of the fiber membrane are filled with the gel, so that the thickness of the diaphragm is not additionally increased, the energy density of the battery is improved, and the problem that a coating structure is easy to fall off in the prior art is solved.

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.

The present invention relates to the field of food processing technology, and discloses a fish oil and a refining method thereof. The method comprises: (1) first mixing crude fish oil with water, a complex enzyme, and a chelating agent to obtain a mixed material; the complex enzyme is a combination of protease, phospholipase, and lipase; (2) sequentially separating and washing the mixed material to obtain an intermediate material I; (3) sequentially subjecting the intermediate material I to a first adsorption decolorization, a second adsorption decolorization, and a third adsorption decolorization to obtain an intermediate material II; the adsorption material I in the first adsorption decolorization comprises silica gel; the adsorption material II in the second adsorption decolorization is bleaching clay; and the adsorption material III in the third adsorption decolorization is activated carbon; (4) deodorizing the intermediate material II to obtain a fish oil product. The method provided by the present invention can effectively remove impurities in crude fish oil, retain a high rate of beneficial accompaniments in fish oil, and effectively control the generation of harmful substances in the production process.

The invention belongs to the technical field of heat-conducting interface materials, and particularly relates to low-hardness high-resilience heat-conducting organic silicon gel and a preparation method thereof. The organosilicone gel is prepared from the following components: vinyl-terminated polydimethylsiloxane, hydrogen-containing polysiloxane, an iso-bifunctional chain extender, a heat-conducting powder surface treating agent, heat-conducting filler, a curing inhibitor and a platinum catalyst. The organic silica gel prepared by the preparation method disclosed by the invention has the excellent properties of high heat conductivity, low hardness, difficulty in cracking, capability of keeping high resilience and the like.

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.

The invention relates to the technical field of power semiconductor packaging, in particular to a high-dielectric-property homogeneous polymer coating suitable for a medium-voltage SIC power module and application, the polymer coating is prepared from a solution formed by dissolving dicyclohexyl-3, 4, 3 ', 4'-tetracarboxylic dianhydride and 2, 2 '-dimethyl-[1, 1'-biphenyl]-4, 4 '-diamine in chloroform, and the polymer coating is prepared from a high-dielectric-property homogeneous polymer coating suitable for the medium-voltage SIC power module and a high-dielectric-property homogeneous polymer coating suitable for the high-dielectric-property homogeneous polymer coating suitable for the medium-voltage SIC power module. The dielectric constant of the polymer coating is 4.52 under 1kHz, the dielectric constant of the polymer coating is 3.94 under 100kHz, and the breakdown field strength of the polymer coating is 700kV / mm. The coating is verified through electric field simulation, the maximum electric field intensity in the silica gel can be reduced to 43% or below of the original maximum electric field intensity through the coating with the thickness of 80 microns, and partial discharge can be effectively restrained; meanwhile, compared with an uncoated sample, the partial discharge initial voltage (PDIV) is averagely improved by 101%, and the insulation requirement of a 15kV medium-voltage module is met.

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.

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.

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.

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.

1. The name of this design product: sponge silicone gel patch. 2. The purpose of this design product: It is a skin patch that is applied on the skin. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the key points of the design: main view. 5. This design is a thin sheet structure, and the left view, right view, top view and bottom view are omitted.

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.

The invention relates to the technical field of thermal conductive materials, and in particular to a method for producing a low-oil permeability, low-volatility, non-solidifying thermal conductive silicone gel; the method comprises the following steps: S1: preparing a special silicone oil containing a coupling agent hydrophilic group, an alkoxy group; S2: preparing a dimethyl silicone oil with a comb structure; S3: uniformly mixing the special silicone oil in S1 and the dimethyl silicone oil in S2 with thermal conductive powder in a certain proportion under vacuum conditions, and obtaining the low-oil permeability, low-volatility, non-solidifying thermal conductive silicone gel after standing and hydrolyzing completely. The invention utilizes the principle of molecular design to, on the one hand, introduce the hydrophilic group of the coupling agent into the silicone oil molecule to obtain the special silicone oil that can form a chemical connection with the powder surface; on the other hand, preparing the dimethyl silicone oil with a comb structure, uniformly mixing the above two silicone oils with a thermal conductive filler in a certain proportion, and obtaining the non-solidifying thermal conductive silicone gel with the characteristics of low volatility and low oil permeability after complete hydrolysis.

1. The name of this design product: LED photon silicone facial cleansing device. 2. Purpose of this product design: A facial cleansing device used for cleansing the face. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

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.

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.

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.

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.

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.

The invention relates to the technical field of optical cables, in particular to a factice-free dry-type flame-retardant fire-resistant optical cable and a preparation method thereof.The factice-free dry-type flame-retardant fire-resistant optical cable comprises a plurality of independent fire-resistant optical fiber units, each fire-resistant optical fiber unit comprises an optical fiber unit arranged in a loose tube, and the space between each optical fiber unit and the loose tube is filled with an aerogel water-blocking material; ceramic flame-retardant polyolefin is coated outside the loose tube; a plurality of independent fire-resistant optical fiber units are twisted around the central reinforcing piece to form a cable core, and gaps of the cable core are sealed by silicone gel; the cable core is wrapped by an aluminum foil-ceramic silicone rubber composite tape, and the aluminum foil-ceramic silicone rubber composite tape is wrapped by a braid layer. And a sheath is sleeved outside the braid layer. The loose tube is filled with the nanoscale aerogel water-blocking material, traditional ointment is replaced, the light transmittance is improved, no smoke is released during combustion, cleaning ointment is not needed during construction, wiping is avoided, direct connection is achieved, and the working time is shortened; and a single-sheath structure is adopted, so that the outer diameter and the weight are reduced compared with those of a traditional double-sheath structure, and the cable has better flame-retardant and fire-resistant performance.

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.

A thermal-conductive silicone composition containing (A) 0.5 to 2.5 mass % of a crosslinked silicone gel containing (a) an organopolysiloxane having at least two aliphatic unsaturated hydrocarbon groups per molecule, and having a kinematic viscosity at 25° C. of 10,000,000 mm2 / s or more, and (b) an organohydrogenpolysiloxane having two or more silicon-bonded hydrogen atoms per molecule; (B) 12.5 to 19.5 mass % of a hydrolysable organopolysiloxane compound; and (C) 80 to 85 mass % of aluminum nitride particles having an average particle size of 0.5 pm or more and 1.5 pm or less. A content of coarse particles in the aluminum nitride particles is 1.0 volume % or less relative to the whole. The coarse particles are 10 pm or more in a particle size distribution by laser diffraction. A thermal-conductive silicone composition has excellent coating workability and favorable pumping-out resistance, and is capable of attaining low thermal resistance by being thinly compressed.