915 results about "Butyl rubber" patented technology

The invention relates to the technical field of solar cell module packaging, in particular to a packaging structure for a perovskite-back contact crystalline silicon laminated solar cell and a preparation method of the packaging structure. The packaging structure comprises a front light conversion glass layer, a perovskite top cell layer, an infrared light-transmitting adhesive film layer, a back contact crystal silicon bottom cell layer, an adhesive film layer and a packaging bottom plate which are arranged in sequence, and butyl rubber surrounding the perovskite top cell layer, the infrared light-transmitting adhesive film layer, the back contact crystal silicon bottom cell layer and the adhesive film layer is arranged between the front light conversion glass layer and the packaging bottom plate, and the near infrared transmittance of 780 nm to 1100 nm in the infrared transparent adhesive film layer is 93% to 100%. According to the packaging structure based on the front light conversion glass layer and the infrared light-transmitting adhesive film layer, regulation and control of short-wave ultraviolet and near-infrared spectrums are considered, and the photoelectric property and reliability of the perovskite-crystalline silicon four-terminal laminated device are remarkably improved.

The invention relates to the technical field of building waterproof materials, and provides a multi-layer self-protection self-adhesion waterproof roll and a preparation method thereof. The multi-layer self-protection self-adhesion waterproof roll sequentially comprises an isolating membrane, a self-adhesion glue layer, an elastic polyester felt buffer layer, an adhesive layer and a polymeric membrane layer from top to bottom, and the self-adhesion glue layer is prepared from, by weight, 65-75 parts of butyl rubber, 15-20 parts of SBS modifier, 8-12 parts of tackifying resin I, 0.5-1.5 parts of anti-aging agent, 8-15 parts of filler, 1-3 parts of polyethylene and 1-2 parts of flexibilizer. The tackifying resin I comprises rosin resin. According to the technical scheme, the problems that the self-adhesive waterproof roll does not have the self-protection capability, the peel strength is low and the holding power is poor in the prior art are solved.

The invention relates to an acid-base permeation-resistant protective glove for a glove box and a preparation method thereof, the glove adopts ethylene propylene diene monomer, butyl rubber, halogenated butyl rubber, chloroprene rubber, chlorosulfonated polyethylene rubber and other base materials to significantly improve the acid-base resistance and mechanical properties of the glove, and the glove is especially suitable for strong corrosive environments such as concentrated nitric acid and the like. The preparation method comprises a multi-step mixing process, the shielding component, the reinforcing filler and the filler are reasonably configured, and the particle size of the shielding component is controlled, so that the shielding component is uniformly dispersed in the rubber, and the permeation resistance of the glove is effectively improved. In addition, the wear-resistant furnace black, the white carbon black, the PTFE, the high-density polyethylene, the ultra-high molecular weight polyethylene and other fillers are selected, so that the glove has a higher wear-resistant grade (grade 4), and the service life is prolonged. The preparation method of the glove is simple and easy to implement, and the finished product has excellent acid and alkali permeability resistance, mechanical property, wear resistance and radiation protection property.

Golf balls having core formulations including polybutadiene, butyl rubber, or a blend thereof, and low surface coverage dimple patterns are disclosed. The combination of low surface coverage with particular rubber formulations helps to reduce the flight of the ball while also providing improved aerodynamic consistency and maintaining the appearance of a high-performance trajectory.

The invention provides medium-high molecular weight high-activity polyisobutene and a preparation method thereof, and the preparation method comprises the following steps: mixing hydrogen peroxide and a butyl rubber solution, and reacting for 0.5-20 hours at 20-80 DEG C under the catalytic action of a catalyst to obtain epoxidized butyl rubber; dissolving epoxidized butyl rubber to obtain an epoxidized butyl rubber solution; adding an oxidative cracking reagent into the epoxidized butyl rubber solution, and reacting at 0-80 DEG C for 0.5-20 hours to obtain a polyisobutylene solution; the medium-high molecular weight high-activity polyisobutene has the characteristics of high molecular weight, narrow distribution and higher end group activity, and can be applied to the application fields of traditional high-activity polyisobutene such as additives of lubricating oil, fuel oil, rubber and the like; and the product can be used as a sealing material, a waterproof water-retaining agent, a rubber and plastic modifier and the like, can meet wider application requirements, and has good industrial application value.

The utility model discloses an integrated assembly machine for a perovskite component before lamination. The integrated assembly machine comprises a component conveying line, and an adhesive tape pasting station, a bus bar pasting station, a drainage tape pasting station and a butyl rubber pasting station which are sequentially arranged along the conveying direction of the component conveying line, the adhesive tape pasting station, the bus bar pasting station, the drainage belt pasting station and the butyl rubber pasting station are each provided with a jacking mechanism for jacking a photovoltaic module and a correcting mechanism for correcting the photovoltaic module, and the adhesive tape pasting station is provided with an adhesive tape pasting device above the module conveying line. A bus bar pasting device is arranged at the position, above the assembly conveying line, of the bus bar pasting station, a drainage belt pasting device is arranged at the position, above the assembly conveying line, of the drainage belt pasting station, and a butyl rubber pasting device is arranged at the position, above the assembly conveying line, of the butyl rubber pasting station. According to the utility model, the overall length of the assembly machine is shortened, and the production efficiency is also improved.

The invention belongs to the technical field of protection. The invention provides a D3O-based protective layer structure and a preparation method thereof. The D3O-based protective layer structure comprises an inner layer, an inner tube bundle layer and an outer layer which are sequentially arranged in parallel from bottom to top, the inner layer comprises a polyester fabric and an organic silicon resin based nano titanium boride and titanium carbide composite coating coated on the polyester fabric; the internal honeycomb-shaped tube bundle layer comprises a honeycomb-shaped frame body formed by a thermoplastic elastomer and a filler filled in the frame body, and the filler is a D30 material; and the outer layer is a butyl rubber layer. The single protective property of a traditional protective layer is changed, the performance of multiple composite materials is combined, the protective layer with multiple functions of wear resistance, softness, hardness, elasticity and the like is formed, and the protective layer has the performance of dispersing impact force, absorbing and buffering impact kinetic energy and preventing friction and can be applied to preparation of facilities or protective tools directly facing human body protection and the like.

The invention relates to the technical field of waterproof coiled materials, and provides a macromolecule waterproof coiled material with a hook-and-loop fastener and a preparation method thereof.The macromolecule waterproof coiled material with the hook-and-loop fastener sequentially comprises the hook-and-loop fastener, a macromolecule sheet layer, a blocking layer, an upper gluing waterproof layer, a film-based macromolecule layer, a lower gluing waterproof layer and an anti-sticking layer from top to bottom; the upper adhesive waterproof layer and the lower adhesive waterproof layer are both modified self-adhesive asphalt sizing materials, and the modified self-adhesive asphalt sizing materials comprise asphalt, softening agents, styrene-butadiene-styrene block copolymers, butadiene styrene rubber, butyl rubber, tackifying resin, desulfurized rubber powder, filler and compatilizers. The filler is prepared from the following raw materials: carbon black, silicon dioxide, a silane coupling agent and 5-methylphenol-2-calcium sulfonate; the hook-and-loop fastener is a hook-and-loop fastener, the hook-and-loop fastener comprises a hook-and-loop fastener hook surface layer and a hook-and-loop fastener loop surface layer, and by means of the technical scheme, the problem that in the prior art, the high polymer waterproof roll is low in peel strength is solved.

The invention relates to the technical field of composite materials, in particular to a carbon fiber composite material with both interface performance and damping performance and a preparation method of the carbon fiber composite material. The invention relates to a carbon fiber composite material with interfacial properties and damping properties. The carbon fiber composite material is prepared from the following components in percentage by weight: 65-75% of carbon fibers, 25-35% of a modified butyl rubber resin matrix, 0.5-2% of a butyl rubber film, 0.5-1% of a polyurethane-based sizing agent and 0.1-0.5% of a silane coupling agent, the in-situ growth CNTs technology is adopted, the shearing strength of a fiber-resin interface can be remarkably improved, meanwhile, the butyl rubber film is embedded into every two layers of carbon fiber prepreg of a sandwich structure, directional energy dissipation is achieved through controllable shearing deformation, excellent environmental stability is achieved, the damping performance and interface performance loss after damp-heat aging is lower than 15%, and the damping performance and the interface performance loss after damp-heat aging are lower than 15%. The industrial problem that a traditional carbon fiber composite material is strong but not tough and rigid but not soft is successfully solved, and the carbon fiber composite material is particularly suitable for application requirements of high-end competitive sports equipment.

The invention relates to a film covering process of a butyl rubber plug, which belongs to the technical field of butyl rubber plug preparation and is characterized in that during processing, in the same way as the prior art, a bonding surface of a film belt used for being bonded with a mixed rubber sheet needs to be activated, and then the bonding surface of the film belt is bonded with one side surface of an unvulcanized mixed rubber sheet; the film belt covers and is fixed on the mixing rubber sheet in an adhesion manner, and the key point is that in the covering and fixing process, the film belt is conveyed forwards in a manner of floating on a flowing liquid surface, and is attached and fixed with the mixing rubber sheet above the film belt in the conveying process, so that the film belt is prevented from being pulled by a conventional belt similar to a belt in belt transmission; and the film belt is prevented from being torn and damaged. The film laminating process can prevent the film belt from being torn due to mechanical traction and pulling as much as possible, and the processing process is convenient and reliable.

The invention discloses an integrally-formed multifunctional shoe sole and a preparation method thereof, and belongs to the field of shoe products, the method comprises the following steps: carrying out primary ejection on a first insole material and a second insole material by adopting double-color ejection equipment to obtain an insole parison; in the first insole material, an ethylene-vinyl acetate copolymer, an ethylene-butyl acrylate copolymer, random polyolefin, a styrene-butadiene-styrene block copolymer and an ethylene-butyl acrylate-maleic anhydride copolymer are used as matrix resin; carrying out molding and mold pressing on the insole blank and the laminated sheet rubber, so that the insole blank is foamed and crosslinked at a high temperature, and meanwhile, the sheet rubber is vulcanized and crosslinked at the same temperature; the coated raw rubber sheet is a mixed rubber sheet mainly taking rare earth butadiene rubber, natural rubber, polyacrylate rubber and brominated butyl rubber as main bodies. According to the invention, double-color sole foaming cross-linking and raw rubber vulcanization are integrally combined and molded, the process is simplified, the cost is reduced, and the production environment is improved.

Provided are: an electrolytic capacitor in which a decrease in electrostatic capacity is suppressed even in a high-temperature environment; and a manufacturing method. An electrolytic capacitor comprises: a capacitor element having a positive electrode foil, a negative electrode foil, an electrolytic solution, and a solid electrolyte layer; a case that accommodates the capacitor element; and a sealing body for sealing the case. The sealing body has an elastic body containing an elastomer. The elastomer contains butyl rubber, and is contained in the elastic body at 31 wt% or more. The electrolytic solution contains glycerin in the amount of 40 wt% or more in the solvent of the electrolytic solution.

The invention relates to a butyl hot melt adhesive, which is prepared from the following raw materials in parts by weight: 10 to 30 parts of butyl rubber, 5 to 15 parts of polyisobutene, 25 to 50 parts of amorphous polyolefin, 10 to 30 parts of organic silicon modified polymer, 0.1 to 1 part of lubricant, 0.1 to 1 part of antioxidant, 1 to 30 parts of modified filler and 1 to 20 parts of carbon black, the organic silicon modified polymer comprises a polyurethane polymer terminated by a silane coupling agent. The butyl hot melt adhesive provided by the invention has the characteristics of difficulty in flowing after being heated, good high-temperature stability and excellent bonding performance, can be used for bonding and sealing a car lamp, and can ensure that the car lamp is stable in structure in a high-temperature environment, so that the car lamp can still work normally in hot weather or when the car lamp is close to high-temperature parts such as an engine, and the service life of the car lamp is prolonged.

The invention relates to the field of sealing materials, in particular to a butyl rubber sealing material and a preparation method thereof. Comprising the following components in parts by weight: 50-70 parts of butyl rubber, 30-50 parts of a brominated isobutylene-p-methylstyrene copolymer, 30-50 parts of carbon black, 8-12 parts of an alkyl phenolic resin vulcanizing agent, 3-5 parts of zinc oxide, 1-3 parts of stearic acid, 1-3 parts of an anti-aging agent and 5-10 parts of a plasticizer. The butyl rubber provides ideal air tightness and heat aging resistance, bromine atoms are introduced into the brominated isobutylene-p-methylstyrene copolymer, co-vulcanization with the butyl rubber is achieved, it is ensured that a uniform and stable co-crosslinking network can be formed between the two rubber molecules, and the service life of the rubber is prolonged. The alkyl phenolic resin vulcanizing agent can form a C-C bond with high bond energy with two rubber molecules, so that the thermal aging resistance of the butyl rubber sealing material is effectively improved, the compression set is reduced, and the butyl rubber sealing material with excellent performance is prepared.

The invention provides a magnetic hot-melt flame-retardant damping material. The magnetic hot-melt flame-retardant damping material is prepared from the following raw materials in parts by weight: 5-15 parts of an ethylene-vinyl acetate copolymer; 2-6 parts by weight of butyl rubber; 1-4 parts by weight of a styrene thermoplastic elastomer; 8-15 parts by weight of a tackifier; 7.5-17 parts by weight of a filler; 10-20 parts by weight of a flame retardant; 44-56 parts by weight of magnetic powder; and 1-4 parts by weight of a softening agent. Compared with the prior art, the magnetic hot-melt flame-retardant damping material provided by the invention adopts specific components with specific contents to realize relatively good overall interaction, and the obtained magnetic hot-melt flame-retardant damping material has excellent flame retardance, good vibration absorption and noise reduction effects, good flexibility, high-temperature baking resistance, high-temperature adhesion and washing resistance; and the product has the advantages of good storage stability, long shelf life and light weight, and is suitable for sound insulation, noise reduction and flame retardance near an automobile body and a battery pack.

The invention relates to a lightweight foaming sole material, which comprises the following raw materials by mass: 20-30% of a PA / EBA modified blend; 10% to 20% of a TPEE / EBA modified blend; 10%-30% of an ethylene-butyl acrylate copolymer (EBA); 8%-15% of an ethylene-octylene copolymer POE; 8%-15% of brominated butyl rubber BIIR; 2%-3% of talcum powder; 5%-10% of a coupling agent; 0.5%-1% of a lubricant; 1%-2% of a foaming aid; 0.3%-1% of a cross-linking agent; and 3%-7% of a foaming agent. The foaming sole material provided by the invention has the advantages of high elasticity, tear resistance and wrinkle resistance; the preparation method is simple and low in production cost, and has a wide application prospect in the field of foamed sole materials.

The application relates to the field of chemical-proof fabrics, and particularly discloses a flame-retardant chemical-proof fabric and a preparation process thereof. The flame-retardant chemical-proof fabric comprises, from outside to inside, an outer layer, a bonding layer, a framework layer, a bonding layer and an inner layer which are sequentially contacted, the outer layer is a barrier layer, the inner layer is a barrier layer or an adsorption layer, the framework layer is selected from at least one of a composite fabric of aramid fiber / polyimide fiber, a basalt fiber cloth, a glass fiber cloth, a flame-retardant polyester cloth and a flame-retardant acrylic fiber cloth, the barrier layer is selected from at least one of a PVC / TPU composite film, a PVC film, a PTFE film, a PE film, silicone rubber, fluororubber, butyl rubber, chloroprene rubber and natural rubber, and the adsorption layer comprises a mixed fabric layer formed by nylon fiber and polyester fiber containing an adsorption material. The flame-retardant protective fabric has the advantages of high flame-retardant capacity, good chemical-proof effect, excellent puncture resistance and tensile resistance, can absorb moisture and sweat, and is comfortable to wear.

The invention belongs to the technical field of high-molecular polymers and functional coatings, and particularly relates to a water-based high-molecular composite sound-absorbing and sound-insulating coating and a preparation method thereof. The composite sound-absorbing and sound-insulating coating comprises the following components in parts by weight: 20-40 parts of silicone acrylic emulsion; 15-30 parts of a porous sound-absorbing filler; 20-40 parts of a high-density sound insulation filler; 5 to 10 parts of cross-linked acrylate coated butyl rubber core-shell emulsion; 1-8 parts of a functional auxiliary agent; and 10 to 25 parts of deionized water. Through cooperative use of the porous sound-absorbing filler, the high-density sound-insulating filler and the butyl rubber elastic damping material, the sound-absorbing coefficient and the sound-insulating amount of the coating can be synergistically improved. Core-shell coating treatment is carried out on butyl rubber through cross-linked acrylate, the adhesive force, flexibility and alkali resistance of the coating can be remarkably improved, and meanwhile the acoustic performance of the coating is also improved.

The invention relates to the technical field of photovoltaic packaging materials, and discloses a butyl sealant for a self-repairing photovoltaic module and a preparation method of the butyl sealant. The butyl sealant is prepared from the following substances in parts by weight: 40 to 60 parts of modified butyl rubber, 20 to 35 parts of inorganic filler, 5 to 15 parts of tackifying resin, 2 to 8 parts of plasticizer, 0.5 to 2 parts of anti-aging agent, 0.3 to 1.0 part of bifunctional crosslinking monomer, 0.08 to 0.25 part of composite catalyst, 2 to 5 parts of microcapsule type repairing agent and 3 to 10 parts of drying agent. According to the invention, through the dual-mechanism design of a'sulfydryl-amino-silicon oxygen bond 'dynamic network and the microcapsule type repairing agent, the self-repairing performance and the aging resistance are synchronously and remarkably improved, and the contradiction that'the self-repairing performance and the aging resistance of a traditional material are difficult to consider at the same time' is solved. Tests show that the 12h repair rate of the sealant for 3mm scratches at 50 DEG C is greater than or equal to 98%, the tensile strength retention rate is greater than or equal to 92% after the sealant is subjected to damp-heat aging at 85 DEG C / 85% RH for 1000 h, and the sealant is superior to existing similar products.

The invention provides a three-dimensional noise reduction structure system drainage pipe design method, and belongs to the technical field of building drainage pipes. Discretization analysis is carried out on a three-layer structure of a spiral flow guide structure PVC pipe inner wall, an asymmetric butyl rubber damping interlayer and gradient density foamed aluminum by establishing a three-dimensional noise reduction model; and constructing a vibration transfer matrix and a noise reduction key point matrix. A spiral flow guide structure is optimized through hydraulic calculation, thickness distribution of a rubber damping layer is determined through acoustic impedance testing, foamed aluminum porosity gradient design is carried out, and a small-section noise reduction cross-correlation index is introduced to evaluate the synergistic effect of adjacent structures. The optimal material ratio is solved through a three-dimensional noise reduction optimization equation set, the noise reduction effect is predicted in combination with an acoustic response deep learning model, standardized module design is finally formed through miniaturized sample piece test verification and parameter correction, and organic unification of full-band noise reduction and modular design of the drainage pipe is achieved.

The invention belongs to the technical field of rubber base plates, and provides a vibration and noise reduction rubber base plate with high damping and low dynamic-static ratio as well as a preparation method and application thereof.The vibration and noise reduction rubber base plate is prepared from the following raw materials in parts by mass: 25-50 parts of natural rubber, 45-65 parts of halogenated butyl rubber, 6-12 parts of epoxy natural rubber, 40-50 parts of a reinforcing agent, 9-15 parts of p-tert-octyl bromide phenolic curing resin and 4-6 parts of zinc oxide; 1-3 parts of stearic acid, 3.4-4.5 parts of an anti-aging agent, 3-5 parts of a silane coupling agent, 4-5 parts of an accelerant and 0.8-1.2 parts of sulfur. The rubber base plate has the characteristics of high frequency, high damping, low dynamic-static ratio and excellent anti-fatigue performance.

The invention discloses a stab-resistant rubber, a preparation method of the stab-resistant rubber and a stab-resistant tire, the stab-resistant rubber comprises the following components in percentage by weight: 40-60% of butyl rubber, 5-15% of aramid fiber, 10-15% of nano silicon dioxide, 10-20% of plasticizer, 1-3% of vulcanizing agent and 5-10% of additive, and the additive comprises an anti-aging agent, an accelerant and a filler which are mixed. The puncture resistance of the puncture-proof rubber is remarkably improved, puncture of a tire by a sharp object can be effectively prevented, and the risks of tire air leakage and tire burst are greatly reduced.

The invention discloses a novel cable semi-conductive buffer layer and a preparation method thereof, and relates to the field of electrical materials. The semi-conductive buffer layer comprises a semi-conductive buffer strip and a rubber coating located on the surface of the semi-conductive buffer strip, the semi-conductive buffer strip is a semi-conductive water-blocking tape or a semi-conductive nylon tape, and the rubber coating comprises butyl rubber, a conductive filler, a functional additive, paraffin and a vulcanizing agent. In order to solve the technical problem of poor water resistance of the cable semi-conductive buffer layer, the rubber coating is arranged on the surface of the semi-conductive buffer strip, butyl rubber in the rubber coating has good air tightness, permeation of water molecules is effectively prevented, the risk of breakdown does not exist when the cable runs in a humid environment for a long time, and the service life of the cable is prolonged. And the conductive filler is uniformly dispersed in the rubber coating, so that the volume resistivity and the surface resistance of the buffer layer can be maintained or reduced, the conductivity and the field intensity homogenization effect are good, and the application requirements are met.

The invention belongs to the technical field of polymer sealants, and particularly relates to a silane modified sealant for hollow glass and a preparation method of the silane modified sealant. The modified asphalt is characterized by comprising a component A and a component B, wherein the component A mainly comprises hydroxyl-terminated polybutadiene, asphalt, a plasticizer, a filler, carbon black and a thixotropic agent; the component B is mainly prepared from isocyanate silane, a cross-linking agent, a coupling agent and a catalyst. According to the invention, hydroxyl-terminated polybutadiene is used as basic polymerization, a main chain is a carbon-carbon straight chain and has good compatibility with petroleum asphalt, a compact structure can be formed, and meanwhile, high-activity isocyanate silane and hydroxyl-terminated polybutadiene are terminated to form silane terminated polybutadiene, so that the flame retardance of the petroleum asphalt is improved, and the flame retardance of the petroleum asphalt is improved. And finally, a net structure with excellent weather resistance is formed through siloxane cross-linking and curing, so that the hollow glass has good water-gas sealing property and excellent weather resistance for structural bonding, and therefore, when the hollow glass is manufactured, only one layer of glue is required to be coated, a butyl rubber coating process is reduced, material waste is reduced, and the production efficiency is improved at the same time.

The invention discloses a hyperbranched polyether branching agent with an adjustable structure and a preparation method and application thereof.According to the branching agent, 3-butene-1-alcohol serves as an initiator, a hyperbranched skeleton is constructed through anion ring-opening polymerization reaction and diglycidyl ether, then esterification and end capping are conducted through anhydride, and the hyperbranched polyether branching agent with the adjustable structure is obtained. The tail end of the hyperbranched polyether contains vinyl double bonds, and the ester group structure of the hyperbranched polyether can be regulated and controlled. Different diepoxy compounds are selected to control a main chain structure, and different anhydrides are used for regulating and controlling the chemical composition of branched chains, so that accurate design of molecular weight, polarity and number of functional groups of the branching agent is realized. The branching agent has excellent dissolvability in common organic solvents, and solves the problem of poor dissolvability of the traditional polydiene branching agent. When the star-shaped branched butyl rubber is applied to the synthesis of star-shaped branched butyl rubber, the distribution and number of branched points can be accurately regulated and controlled, the weight-average molecular weight and molecular weight distribution index of the rubber are remarkably improved, and the side reaction of gel is avoided.

The invention relates to the technical field of hydraulic engineering materials, and particularly discloses a corrosion-resistant rubber dam and a preparation method thereof. The rubber dam is prepared by the following steps: forming a composite matrix (in a mass ratio of 60: 25: 15) by using ethylene propylene diene monomer (EPDM), brominated butyl rubber (BIIR) and hydrogenated butadiene-acrylonitrile rubber (HNBR), adding silane coupling agent modified nano zirconium oxide-aluminum oxide composite powder (ZrO2-Al2O3 with the particle size of 30-80nm) as a corrosion-resistant filler, and carrying out two-stage mixing and gradient vulcanization processes. The tensile strength retention rate of the obtained product in a corrosive environment with the pH value of 1-14 is larger than or equal to 92%, the ultraviolet aging resistance life reaches 30 years, the air tightness is improved by 5 times (the leakage rate is smaller than or equal to 2% / month) compared with a traditional EPDM dam, and the dam is suitable for high-corrosive water areas such as seawater backflow and acid rain.

The invention discloses a preparation method of a high-elastic damping foaming material, which comprises the following steps: S1, melting and blending raw materials comprising a basic elastomer, a hydrogenated styrene thermoplastic elastomer, brominated butyl rubber, a foaming agent and a cross-linking agent to form a homogeneous precursor composition; s2, synchronously carrying out chemical foaming and cross-linking reaction on the precursor composition to form a foaming material with a continuous network foam structure; wherein the basic elastomer comprises at least one of an ethylene-vinyl acetate copolymer and a polyolefin elastomer; moreover, in parts by weight, the dosage of the basic elastomer is 50-70 parts, the dosage of the hydrogenated styrene thermoplastic elastomer is 15-35 parts, and the dosage of the brominated butyl rubber is 10-25 parts. By adopting the technical scheme, the foaming material with high resilience, high damping performance and excellent durability can be prepared.

The invention provides thermoplastic vulcanized rubber and a preparation method thereof. The thermoplastic vulcanized rubber comprises a base material and an additive, the base material comprises rubber and thermoplastic polyurethane, and the additive comprises a vulcanizing agent, a compatibilizer and a reinforcing filler; wherein the content of the vulcanizing agent is 3 to 10 parts, the content of the compatibilizer is 0.5 to 5 parts, and the content of the reinforcing filler is 0 to 20 parts based on 100 percent of the weight of the base material; and the compatibilizer comprises epoxidized butyl rubber and maleic anhydride grafted thermoplastic polyurethane. The compatibility of rubber and thermoplastic polyurethane in the thermoplastic vulcanized rubber is excellent, and the thermoplastic vulcanized rubber has a fine microphase structure. And the thermoplastic vulcanized rubber has excellent mechanical properties, excellent elasticity and slip resistance, and excellent wear resistance. The preparation method of the thermoplastic vulcanizate is simple and easy to implement, raw materials are easy to obtain, and the thermoplastic vulcanizate is suitable for mass production.

The invention discloses a wide-temperature-range high-damping rubber composite material and a preparation method thereof. The rubber composite material is prepared from the following raw materials in parts by weight: 70 to 100 parts of butyl rubber, 5 to 30 parts of polar rubber, 1 to 40 parts of small organic molecules AO-80, 5 to 40 parts of functional filler, 1 to 8 parts of plasticizer, 5 to 10 parts of coloring agent, 1 to 3 parts of anti-aging agent, 2 to 6 parts of vulcanizing agent and 1 to 5 parts of accelerant. The polar rubber is selected from one or a combination of more than two of acrylate rubber, ethylene acrylate rubber or ethylene acrylate prevulcanized rubber in any proportion. Compared with the prior art, the composite material provided by the invention shows two loss peaks of a non-polar component at a low temperature and a polar component at a relatively high temperature, effectively widens the effective damping temperature range of the composite material, is suitable for shock absorption and sound absorption industries, and particularly plays a positive role in improving the performance of a damping product serving in a full working temperature range.