7000 results about "Silicone" patented technology

The invention relates to the technical field of sealing ring hot-press forming, discloses sealing ring hot-press forming equipment, and aims to solve the problems of low finished product taking-out and mold cleaning efficiency and low automation degree in the prior art. The equipment comprises a hot press base, a hot press base and a lower die which are arranged on the hot press base, and a hot press plate and an upper die which are arranged above the hot press base in a lifting manner. The pushing part and the scraping part which work in a linkage mode are arranged, and the pushing part comprises a lifting supporting and pushing piece driven by an electric rod and a top ring and is used for upwards ejecting out a sealing ring formed in a lower mold; the scraping part comprises a rotation guiding part for enabling the supporting and pushing part to rotate during ascending and descending and a silica gel scraper which is elastically connected to the top ring and can be unfolded in the ejection process, and when the electric rod drives the pushing part to ascend to eject out the sealing ring, the rotation guiding part enables the pushing part to integrally rotate, the silica gel scraper is driven to be tightly attached to and scrape the inner wall of the lower mold, and residual rubber is scraped; the production cycle is shortened, and the production efficiency and the automation level are improved.

The invention discloses an extruded and insulated flame-retardant power cable for on-line monitoring of rail transit, and relates to the technical field of power cables, serpentine springs are connected between two adjacent cavity frames and outside corresponding five conductors on the outer side, an outer plastic pipe is connected between two adjacent serpentine springs, the outer plastic pipe is filled with silicone fireproof adhesive, and the outer plastic pipe is connected with the outer side of the serpentine springs. According to the invention, through the cooperation of the cavity frame, the serpentine spring, the inner plastic pipe and the expanding and supporting strip, the outer side of the conductor is provided with a sufficient heat dissipation circulation gap, the heat dissipation speed of the cable is improved, and the inner parts of the outer plastic pipe and the inner plastic pipe are filled with silicone fireproof glue, so that the heat dissipation performance of the cable is improved. The silicone fireproof adhesive expands when meeting fire to form a compact fireproof layer which tightly wraps the outer side of the conductor, and the expanded fireproof layer can fill heat dissipation gaps among the conductors to prevent flame from spreading, so that the cable has good heat dissipation capability, and meanwhile, the flame retardant property of the cable is also ensured.

The invention belongs to the technical field of personal protection equipment, and particularly relates to a lightweight cut-resistant four-dimensional structure fabric based on high-performance composite fibers and a preparation method of the lightweight cut-resistant four-dimensional structure fabric. The structure is based on a high-performance composite fiber material and a nano silicon carbide embedding technology of high-performance polyethylene fibers, the hardness bottleneck of a single material is broken through, and multi-fiber compatibility is improved through cooperation of polyurethane fiber surface activation and polyurethane fiber anti-melting modification. The gradient twist core sheath yarn is a high-performance composite yarn, and the strength and the flexibility are balanced. In the aspect of the oversleeve fabric structure, a three-dimensional protection system comprising a honeycomb structure, a silica gel liner and a skin-friendly inner layer is adopted, so that the integration of multiple functions of hydrophobicity, fusion resistance and buffering of a light-weight cut-resistant material is realized. Under the EN 388 standard, 5-level cutting prevention can be achieved, a single high-performance polyethylene fiber cutting prevention oversleeve can only reach 3-4 levels, the weight of the composite fiber material is reduced by 40% compared with that of a full aramid fiber oversleeve, the thickness is reduced by 25%, and the composite fiber material can be suitable for complex scenes such as petroleum and electric power.

The invention relates to the technical field of cable materials, and provides a flexible EVA cable sheath material and a preparation method thereof. The cable sheath material is prepared from the following raw materials in parts by weight: 25 to 50 parts of ethylene-vinyl acetate copolymer EVA, 15 to 30 parts of ultra-low density polyethylene, 2 to 10 parts of grafted EVA, 2 to 10 parts of flame retardant, 2 to 10 parts of polydopamine modified montmorillonite-boron nitride fiber composite material, 0.5 to 3 parts of flexibilizer, 0.2 to 1 part of silicone and 0.2 to 1 part of organopolysiloxane. A grafting monomer for grafting EVA comprises maleic anhydride and / or an acrylate compound; the polydopamine modified montmorillonite-boron nitride fiber composite material is prepared from montmorillonite, boron nitride fibers, hydroxylated lignin, dopamine hydrochloride and polyethyleneimine through a reaction. Various functional raw materials are compounded, and the obtained cable sheath has good flexibility, flame retardance, thermal deformation resistance, aging resistance and mechanical performance.

The invention relates to an automobile paint surface protective film agent and a preparation method thereof, and belongs to the technical field of automobile beauty. The automobile paint surface protective film agent is prepared from the following raw materials: amino functional polysiloxane, fluorine modified acrylic resin, epoxy modified organic silicon emulsion, functional filler, a surfactant, hydrophobic modified silicone oil, a brightening agent, a penetrating agent, a cosolvent and deionized water, and the raw materials are blended to prepare the automobile paint surface protective film agent. The functional filler is prepared by firstly carrying out surface modification on a polymer and then carrying out click chemistry on dodecanethiol on hydroxylated nano silicon dioxide, and the polymer is prepared by carrying out nucleophilic addition on poly (ethylene glycol) methacrylate Mn360, poly (ethylene glycol) methacrylate Mn500 and isophorone diisocyanate. The automobile paint surface protective film agent is high in film forming speed, a formed film layer has the characteristic of multiple effects, and meanwhile, the wear resistance is also very good.

The present invention relates to an exposed water-based asphalt-based waterproof coating material and a preparation method therefor, and a waterproof laminate. The exposed water-based asphalt-based waterproof coating material comprises anionic emulsified asphalt, a polymer emulsion, a filler, and an auxiliary agent, wherein the anionic emulsified asphalt is prepared by melt-blending matrix asphalt with a composite weather-resistant additive and then emulsifying the resulting blend. The composite weather-resistant additive is a combination of an antioxidant and an ultraviolet absorbent in a mass ratio of 0.5-2:1, and the polymer emulsion is one of or a combination of more than one of a weather-resistant styrene-acrylic emulsion, a weather-resistant pure acrylic emulsion, and a weather-resistant silicone acrylic emulsion. By introducing the antioxidant and the ultraviolet absorbent into the anionic emulsified asphalt, the present invention improves the stability of a waterproof coating material system and avoids a demulsification phenomenon; moreover, by using a weather-resistant polymer emulsion in combination with a filler and an auxiliary agent, the weather resistance of the prepared waterproof coating material is greatly improved; furthermore, by means of the protective effect and the sunlight reflecting effect of white sintered sand adhered to a surface of the coating material, the waterproof system can be used as an exposed product for waterproof construction of buildings that have been in exposed environments for a long time.

The invention relates to the field of new energy battery buffer parts, in particular to an anti-static foaming silica gel buffer part for a new energy battery and a preparation method of the anti-static foaming silica gel buffer part. The anti-static foaming silica gel buffer part is prepared by mixing and foaming anti-static mixed rubber, a foaming agent, hydrogen-containing silicone oil, an inhibitor and a platinum catalyst, the anti-static rubber compound is prepared from the following raw materials in percentage by weight: 37-50% of methyl vinyl silicone rubber raw rubber, 38-45% of white carbon black, 8-15% of anti-static filler and 1-3% of hydroxyl silicone oil; the antistatic filler is composed of an antistatic agent and a silane-containing active agent; the antistatic agent is composed of acetylene carbon black and a single-walled carbon nanotube. Under the action of the silane-containing active agent, the acetylene carbon black and the single-walled carbon nanotubes are interwoven to form a stable supporting antistatic skeleton structure, so that static electricity can be effectively conducted, static electricity accumulation is avoided, the structure is kept stable in long-term use, and the compression resilience and antistatic durability of the buffer part are ensured.

The invention discloses a low-stress assembly structure of an off-axis two-reflector system. The low-stress assembly structure comprises a large-caliber off-axis parabolic reflector clamping mechanism, a small-caliber off-axis parabolic reflector clamping mechanism and a connecting long plate, the large-aperture reflector realizes flexible surface contact support by adopting a hook surface magic tape, the back of the large-aperture reflector protrudes out of the magic tape, the mass of the protruding part of the back and the mass of non-uniformly distributed paraboloids are balanced, and the gravity deformation of the paraboloids is effectively weakened. The small-caliber reflector realizes V-shaped contact clamping through two cylindrical pins which are arranged at an angle of 120 degrees, and the back of the small-caliber reflector also protrudes out of the cylindrical pins. The two clamping mechanisms both adopt a composite constraint mode of rotation limiting of a plane-parallel block, movement limiting of a flexible jackscrew and back silica gel gluing. The two mechanisms are rigidly connected into a whole through the long connecting plate. Through the back protruding supporting design and the flexible constraint mechanism, surface shape distortion caused by clamping stress and self weight is reduced, and the system stability and the optical performance are improved.

The invention discloses a sulfydryl silicon resin, a UV light-cured organic silicon optical adhesive as well as a preparation method and application thereof. The optical adhesive comprises sulfydryl silicon resin, vinyl polysiloxane and a photoinitiator, the molar ratio of sulfydryl in the sulfydryl silicon resin to vinyl in the vinyl polysiloxane is (1.2-1.5): 1; the molar ratio of vinyl in the vinyl polysiloxane to the photoinitiator is 1: (0.3-1.8). The optical adhesive disclosed by the invention can be subjected to rapid photocuring based on a click reaction of sulfydryl-vinyl, the preparation method of the optical adhesive does not need a solvent, and compared with conventional OCA, the optical adhesive has a certain filling advantage in the aspect of a full-lamination process, also has relatively high binding power, relatively low stress relaxation rate and excellent creep recovery rate, and can be used for preparing the optical adhesive. Therefore, the optical adhesive is especially suitable for flexible display application scenes represented by folding screens.

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

The invention provides a bio-based light-cured heat-conducting and insulating composite material, a preparation method and application, and relates to the technical field of radiation curing, and the bio-based light-cured heat-conducting and insulating composite material comprises a bio-based oligomer, a reactive diluent, a modified heat-conducting filler, a free radical photoinitiator and an organic silicon defoaming agent. The bio-based oligomer is selected as a main component of the photocuring coating, and compared with a coating prepared from petroleum-based acrylic resin in the prior art, the coating has the green and environment-friendly functions, and meanwhile, the harm to the environment caused by exploitation and processing of petrochemical products can be reduced.

To provide a head beauty device being usable regularly in a simple operation by integrating various functions and making them routine in the morning, at night and on weekends, and appropriately and automatically spraying a necessary beauty serum at a right time to penetrate the skin.SOLUTION: A head beauty device comprises a body and a detachable brush body, where the brush body includes; a base body on which a plurality of columnar pins are formed, each formed by integrally molding a conductor formed by connecting a stainless-steel electrode member at the tip and a tubular metal member at the end with straight steel wire, and insulating silicon; a wiring board that comes into contact with the cylindrical metal member and delivers a prescribed electric signal to the electrode member; a brush stand that accommodates the base body and the wiring board and has a hole penetrating the base body and the wiring board, formed at a center; and a beauty serum storage tank including a cylindrical body for spraying a beauty serum, formed on a bottom surface, and being inserted into the hole with the cylindrical body facing outward, and where the body includes; signal generation means for generating an electric signal to be transmitted to the wiring board; and an air pump for sending pressurized air.SELECTED DRAWING: Figure 1(a)

The invention discloses a high-elasticity regenerated polyester material for chemical fibers and a preparation method thereof, and relates to the technical field of high polymer material regeneration. The invention discloses a high-elasticity regenerated polyester material for chemical fibers. The composite material is prepared from the following raw materials in parts by weight: 8 to 12 parts of glass fiber, 0.2 to 0.4 part of silane coupling agent KH-550, 4 to 6 parts of absolute ethyl alcohol, 4 to 6 parts of aluminum hypophosphite, 2 to 4 parts of melamine cyanurate, 0.05 to 0.15 part of aryl sodium phosphate, 65 to 75 parts of modified regenerated polyester, 20 to 30 parts of modified bio-based elastomer, 5 to 10 parts of maleic anhydride grafted polyolefin elastomer, 0.3 to 0.8 part of antioxidant and 1 to 2 parts of carbon black master batch. 0.1 to 0.3 part of a silicone lubricant; and 5 to 10 parts of didodecyl dimethyl ammonium chloride. Through supercritical chain extension, nano grafting and gradient crystallization technologies, the mechanical property and elasticity of the regenerated polyester are improved. The modified bio-based elastomer, the flame retardant and the antistatic agent have a synergistic effect, so that the material has high elasticity, flame retardance and antistatic functions. The method is suitable for high-end application in the field of chemical fibers, realizes high-value recycling of waste polyester, and has remarkable environmental protection benefits.

To provide an inkjet printing method exhibiting excellent texture and reduced stickiness.SOLUTION: This inkjet printing method comprises the steps for discharging onto a fabric an ink composition containing an anionic resin and a silicone-acrylic resin having a film elongation of 600% to 1600% to form a wet image, and irradiating the formed wet image with infrared rays to form a dried image.SELECTED DRAWING: Figure 2

The invention particularly relates to colored dual-curing UV paint and a preparation method thereof. The UV paint is prepared from the following raw materials in parts by weight: 15 to 20 parts of trifunctional aliphatic polyurethane acrylic resin, 12 to 16 parts of organic silicon modified polyurethane acrylate prepolymer, 5 to 8 parts of polyether type polyurethane acrylate, 10 to 15 parts of organic silicon-acrylic hybrid resin, 4 to 9 parts of blocked isocyanate, 15 to 25 parts of diluent and 1 to 3 parts of pigment. 3-6 parts of amino modified silicon dioxide, 1-3 parts of a photoinitiator and 0.1-0.3 part of a flatting agent. According to the UV paint, the adhesion, high wear resistance, weather resistance and hydrolysis resistance of the UV paint are remarkably improved by compounding multiple resins and a processing aid, the production efficiency is improved through a dual-curing mechanism combining UV curing and thermocuring, and meanwhile, complete curing and durability of the UV paint are guaranteed; in addition, VOCs emission is greatly reduced, and the low-VOCs environmental protection requirement is met.

The invention belongs to the technical field of secondary batteries, and discloses a polyurethane acrylate emulsion and a secondary battery. The polyurethane acrylate emulsion comprises water and a polymer dispersed in the water; the polymer comprises a core and a shell, the shell covers the core, the core comprises water, and the shell comprises urethane acrylate; the polyurethane acrylate comprises a polyurethane unit and a polyacrylate unit, and the polyacrylate unit comprises an organic silicon chain segment; on the basis of the mass of the polyurethane acrylate, the mass content of the organic silicon chain segment is 0.1%-10%. The polyurethane acrylate emulsion provided by the invention has the characteristics of high bonding strength, electrolyte corrosion resistance and good dispersity to a conductive agent, and when the polyurethane acrylate emulsion is used as a silicon-based negative electrode binder, the polyurethane acrylate emulsion can effectively cope with large volume change of a silicon-based material, the problem of interface failure of a silicon-based negative electrode is solved, and the cycle performance and the dynamic performance of a battery are improved.

A shoe or other footwear has a non-removable multi-layer foot-support member (FSM) embedded within the sole. The uppermost layer is a breathable, stretchable textile configured for direct contact with the foot, offering softness and elasticity. Directly beneath it is a containment layer made of elastic fabric partially infused or impregnated with silicone, which stabilizes and restrains the granular contents below. The central layer includes one or two or three sealed chambers filled with a cured mixture of silicone and polymeric granules, forming a deformable medium that yields under pressure and mimics natural granular terrain or sand. Beneath this is a synthetic textile layer that restricts lateral expansion of the granular mixture, and preserves chamber geometry during use. The bottom component is a semi-rigid base that structurally supports and anchors all overlying layers.

The invention relates to the field of optical display and material engineering, in particular to a silica gel integrated optical film with a 3D light splitting function and a manufacturing method of the silica gel integrated optical film. A silica gel integrated optical film with a 3D light splitting function comprises a transparent optical base material and a microstructure layer, and the microstructure layer is combined on the surface of the transparent optical base material in an integrated forming mode. And the microstructure layer is an anhydrous silica gel-resin composite material obtained by combining organic silica gel with low refractive index and resin with high refractive index through an anhydrous chemical reaction system. The optical film obtained in the invention has excellent interface bonding stability and long-term reliability, the overall thickness of the optical film is small, the optical loss is reduced, the light transmittance is higher, and the overall transmittance can reach 93% or above. And the manufacturing process integration degree and the mold repeated utilization rate are high, the industrial batch production requirement can be met, and the excellent industrial application prospect is achieved.

The automatic three-dimensional stacking equipment for the steel structural parts comprises an I-shaped advancing rail frame, a movable tray, a static tray mechanism, a hollowed-out silica gel pad and a containing table, four telescopic supporting legs are fixedly mounted at the bottom of the I-shaped advancing rail frame, and mounting bases are fixedly mounted at the bottoms of the four telescopic supporting legs; when the air guide pipe is opened, the rectangular coil pipe and the ferromagnetic pipe at the bottom generate an air pressure adsorption effect, and when the air guide pipe is closed, the rectangular coil pipe and the ferromagnetic pipe at the bottom are not influenced by air pressure adsorption, and then adsorption of a short section of steel structural part is matched, so that the adsorption surface of the ferromagnetic pipe and the silica gel soft head can be adjusted; and then adsorption of different steel structural parts, such as adsorption of steel plates of different sizes, is matched, the overall design can adapt to various steel structural parts, the use of molds and funds is reduced, the capacity of being suitable for various production lines is integrally improved, and the production efficiency is improved.

The invention discloses a sealing silica gel ring anti-cracking performance detection device, and relates to the silica gel ring performance detection field, the sealing silica gel ring anti-cracking performance detection device comprises a detection table, a cylinder body and an external pressing mechanism, the external pressing mechanism comprises a U-shaped frame body and a pushing assembly, the inner side of the U-shaped frame body is provided with an accommodating groove, the pushing assembly comprises a connecting rod, one end of the connecting rod is rotatably connected with the U-shaped frame body, and the other end of the connecting rod is rotatably connected with the cylinder body; the other end of the connecting rod is rotationally connected with pushing wheels, and the two pushing wheels push the silica gel ring to enable the silica gel ring to arch outwards. Through the arrangement of the external pressure mechanism, the symmetrically distributed pushing wheels can hunch up part of the area of the silica gel ring, so that the crack detection capability is enhanced, closed or microscopic cracks on the surface of the silica gel ring can be effectively expanded, and the cracks are obviously amplified in the hunched parabola-like area; the silica gel ring is driven to roll continuously in the circumferential direction by combining the composite motion of rotation and axial movement of the barrel, it is ensured that the whole surface of the silica gel ring is subjected to the stretching and arching process, and a blind area of traditional single-point detection is eliminated.

The invention discloses a hydraulic drive double-joint flexible mechanical arm structure. The mechanical arm mainly structurally comprises a mechanical arm body formed by connecting two sets of flexible joint modules in series, each set of joint module comprises three silica gel flexible actuators which are evenly distributed on the circumference, the two ends of each actuator are detachably connected with a supporting disc through a cross beam structure, and sealing rings are arranged at the connecting positions for sealing. The driving system drives the actuators to stretch out and draw back in the axial direction by independently controlling the internal water pressure of the actuators so as to achieve multi-degree-of-freedom movement. In order to restrain radial expansion caused by water pressure, the executors are sleeved with chinlon woven sleeves to serve as restraint layers, and limiting piece structures are arranged between the executors. Through the modular series design and the optimized water pressure driving and radial constraint structure, the adaptability, the movement performance, the sealing reliability and the anti-interference capacity of the mechanical arm are effectively improved, and the mechanical arm is suitable for operation in complex environments such as underwater environments.

The invention relates to a high-temperature-resistant engine oil-resistant sealant based on organic silicon-epoxy hybrid resin and a preparation method of the high-temperature-resistant engine oil-resistant sealant. The high-temperature-resistant engine oil-resistant sealant based on the organic silicon-epoxy hybrid resin is prepared from the following components in parts by weight: 100 parts of an organic silicon-epoxy hybrid polymer, 20 to 25 parts of modified boron nitride, 13 to 17 parts of modified silicon carbide, 8 to 10 parts of mica powder, 3 to 5 parts of graphene oxide, 25 to 30 parts of a curing agent, 0 to 13 parts of hydroxyl-terminated nitrile rubber and 1 to 2 parts of an antioxidant, according to the high-temperature-resistant engine oil-resistant sealant based on the organic silicon-epoxy hybrid resin and the preparation method thereof, the technical problem that the sealant in the prior art cannot meet the requirements of high temperature resistance, engine oil resistance and high cohesiveness at the same time is solved.

The invention relates to the technical field of functional coatings, in particular to an environment-friendly water-based strippable coating and a preparation method thereof.The environment-friendly water-based strippable coating is prepared from, by mass, 25%-45% of film-forming resin, 8%-20% of a stripping functional component, 10%-25% of a filler system, 3%-8% of a functional additive and the balance water, the stripping functional component is a ternary system of a wax emulsion, organic silicon modified acrylate and a fluorocarbon modified polymer, through collaborative design of the components, controllable stripping, no residue and no damage of a coating on various base materials such as metal, plastic and glass are achieved, meanwhile, the coating has excellent water resistance, weather resistance and environmental protection performance, and the coating can be widely applied to various substrates such as metal, plastic, glass and the like. The method is suitable for temporary protection in the fields of automobiles, electronics, precise instruments and the like.

The invention relates to the field of TPU (thermoplastic polyurethane) materials, and discloses a modified TPU material with polarity dirt resistance and low precipitation and a preparation method of the modified TPU material. The polar-dirt-resistant low-precipitation modified TPU material is prepared from the following raw materials in percentage by weight: 40 to 60 percent of TPU, 8 to 18 percent of SEBS (Styrene-Ethylene-Butylene-Styrene), 10 to 15 percent of plasticizer, 8 to 15 percent of compatilizer, 8 to 15 percent of anti-fouling agent, 5 to 10 percent of polarity regulator and 0.1 to 0.5 percent of antioxidant. The anti-fouling agent is composed of acrylic acid modified silicone and ultra-high molecular weight polyethylene with the molecular weight of 5-7 million; the preparation method comprises the following steps: mixing and standing the SEBS, the plasticizer and the polarity regulator; adding a compatilizer and an anti-fouling agent, melting, extruding and pelletizing; and adding TPU and an antioxidant, mixing, carrying out melt extrusion, cooling and pelletizing. The prepared modified TPU material has good mechanical properties, polarity smudginess resistance and low precipitation, and is suitable for 3C electronic products such as data line outer covers, soft rubber coating layers of mice and keyboards and the like.

The invention discloses a high-temperature-resistant high-stripping organic silicon pressure-sensitive adhesive and a preparation method thereof, and relates to a pressure-sensitive adhesive and a preparation method thereof. The invention aims to solve the problems of insufficient temperature resistance, low peel strength and poor binding force with a base material of the existing organic silicon pressure-sensitive adhesive. According to the invention, phenyl siloxane rubber, hydroxyl-terminated polysiloxane and methyl vinyl MQ silicon resin are used as basic raw materials, and polysilazane is used as a heat-resistant modifier to carry out heat-resistant modification on the chemical structure of the pressure-sensitive adhesive; a trifunctional allyl silane monomer is added in the film preparation process, so that the crosslinking density of the system is improved, and the heat resistance of the pressure-sensitive adhesive is further improved; the bonding force between the pressure-sensitive adhesive and a polyimide substrate is improved by adding the peroxysilane coupling agent, and the use of a primer in the coating process is omitted; by adding the hydroxyl MQ silicon resin and the phosphate adhesion promoter, the bonding strength of the pressure-sensitive adhesive is improved, and the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive is prepared. According to the invention, the high-temperature-resistant and high-stripping organic silicon pressure-sensitive adhesive can be obtained.

The invention discloses a pressure detection system, and relates to the technical field of intelligent wearing, and the pressure detection system comprises 1) a flexible substrate layer which is used for fitting skin and sensing external tiny pressure changes; the micro-column array layer is composed of a plurality of micro-column structures and used for amplifying and conducting the pressure change sensed by the flexible substrate layer; the flexible gel sensing layer is used for receiving the pressure transmitted by the micro-column array layer and generating an electric signal; 4) a packaging layer; an interdigital electrode layer is arranged in the flexible gel sensing layer, an electric signal of the flexible gel sensing layer changes along with the change of external pressure, and the detection of a pressure electric signal is realized through the interdigital electrode layer. By means of the design, high-sensitivity response to tiny pressure changes can be achieved, micro-pressure signals are remarkably amplified, meanwhile, the problem of hysteresis effect generally existing in traditional silica gel or metal film materials is solved, and therefore the response speed of the sensor is greatly increased.

The invention discloses a closed-cell heat-conducting flame-retardant foamed silica gel material and a preparation method thereof in the field of organic silicon functional materials. The closed-cell heat-conducting flame-retardant foamed silica gel material is prepared from the following raw materials: basic silica gel, silane modified boron nitride, titanate modified aluminum hydroxide, a foaming agent, a cross-linking agent, a catalyst, an inhibitor and absolute ethyl alcohol. The raw materials are mixed according to a certain mass ratio. Wherein the silane modified boron nitride is prepared by heating, refluxing and reacting boron nitride powder and a silane coupling agent in an ethanol solvent and then drying; the titanate modified aluminum hydroxide is prepared by ultrasonically dispersing aluminum hydroxide powder and a titanate coupling agent in deionized water, adjusting the pH value, reacting and drying. The preparation method comprises the following steps: mixing the basic silica gel with the two modified fillers at a high speed, sequentially adding other raw materials, continuously mixing, transferring into a mold, pressurizing at a certain temperature to complete vulcanization foaming, taking out, washing with water, and drying in vacuum. According to the material, the interface bonding force is improved through the modified filler, and the material has the characteristics of high heat conductivity, high flame retardance and stable closed-cell structure.

The present invention relates to a composition in the form of a water-in-oil emulsion, including, (a) one or more esters formed from at least one fatty acid having more than 13 carbon atoms; (b) a polymer component including one or more polymerized (iso)butenes; (c) at least about 3% by weight of one or more carbohydrate fatty acid ester emulsifiers; (d) one or more fillers comprising hydrophobic silica; and (e) one or more pigments. The composition is substantially free of silicones & alkanes.

The invention relates to the technical field of protective film preparation, and particularly discloses an antistatic silica gel protective film and a preparation method thereof.The protective film comprises a base material layer and an antistatic coating coated on the surface of the base material layer; the base material layer is prepared from methyl vinyl silicone rubber, modified fumed silica, a compound antistatic agent A and a vulcanizing agent, and the antistatic coating is prepared from a compound antistatic agent B and water-based acrylic resin. The preparation method comprises the following steps: banburying, calendering and vulcanizing a compound antistatic agent A, methyl vinyl silicone rubber and modified fumed silica to form the base material layer; and finally, mixing the compound antistatic agent B with water-based acrylic resin to prepare an antistatic coating solution, coating the surface of the base material layer with the antistatic coating solution, and drying and curing to obtain a finished product. The silica gel protective film prepared by the invention has excellent antistatic property, mechanical property, adhesive force and high light transmittance, and is suitable for the fields of electronic equipment screens, optical lenses and the like.

A method of manufacturing a surgical instrument that includes a tissue contacting surface operable to apply ultrasonic energy or RF energy to tissue. The method includes applying a hydrophobic coating that includes silicone to a base surface of the tissue contacting surface to form an applied coating layer having a coating application thickness. The method also includes removing portions of the applied coating layer with a resiliently biased mechanical coating removal tool to form a plurality of removed portions of coating. A removal depth of each removed portion of the plurality of removed portions can each be from 50% to 100% of the coating application thickness such that from 10% to 50% of the applied coating layer is removed from the base surface.