198 results about "Rubber technology" patented technology

The invention relates to the technical field of thermoplastic vulcanizates, and discloses a TPV sealing material and a preparation method thereof. The TPV sealing material is prepared from the following raw materials in parts by weight: 10 to 30 parts of PP resin, 40 to 60 parts of EPDM rubber, 10 to 20 parts of polylactic acid, 15 to 25 parts of filler, 0.5 to 1.5 parts of vulcanizing agent, 0.3 to 1.5 parts of vulcanization accelerator, 5 to 10 parts of compatilizer, 1 to 4 parts of modified heat stabilizer and 0.5 to 3 parts of modified anti-aging agent. Through preparation of the modified heat stabilizer, structural damage or sealing failure caused by thermal aging of a system can be reduced, and the service life of the sealing material is greatly prolonged; the preparation of the modified anti-aging agent can effectively resist the corrosion of environmental factors such as thermal oxidation and ozone to the system, and prevent the problems of cracking, hardening, elasticity attenuation, sealing failure and the like of the sealing material after long-term use.

The present application relates to the technical field of colored tire rubber, and specifically discloses an anti-discoloration rubber composition for colored tires and its preparation method. An anti-discoloration rubber composition for colored tires is prepared by first preparing modified colored silica, then using solution-polymerized styrene-butadiene rubber, natural rubber, and EPDM as the rubber matrix, adding modified colored silica for coloring and reinforcement, and then adding polydicyclopentadiene resin, titanium dioxide, YDH-151 silane coupling agent, zinc oxide, stearic acid, sulfur and TBBS accelerator, protective wax, AFS / LG antioxidant, antistatic agent and other auxiliary agents to prepare the anti-discoloration rubber composition for colored tires. The anti-discoloration rubber composition for colored tires prepared in this application has the advantages of stable color, aging resistance, good tensile strength, strong wear resistance, and strong weather resistance.

The invention relates to the technical field of rubber, and relates to a wear-resistant rubber composite material and a preparation method thereof. The wear-resistant rubber composite material is prepared from the following components in parts by weight: 100 parts of a rubber matrix, 30 to 60 parts of multi-stage core-shell structure composite filler, 10 to 15 parts of carbon black, 1.0 to 2.5 parts of a vulcanizing agent, 0.5 to 2.0 parts of an accelerant, 3 to 6 parts of an active agent and 1 to 3 parts of an anti-aging agent, the multi-stage core-shell structure composite filler sequentially comprises a rigid inorganic nano-particle core, a rigid inorganic nano-particle core and a rigid inorganic nano-particle core from inside to outside, the core is coated with the first shell layer, the first shell layer is a mesoporous silica layer, and a silane coupling agent containing sulfur groups is modified in the mesoporous silica layer; and the second shell layer is coated outside the first shell layer and is a hyperbranched polymer layer. According to the wear-resistant rubber composite material provided by the invention, the comprehensive mechanical property and wear resistance of the rubber composite material are improved.

The invention discloses silicone rubber and a preparation method thereof, and belongs to the technical field of silicone rubber, and the silicone rubber is prepared from the following raw materials: raw vinyl silicone rubber, zinc acrylate, a platinum catalyst, a hydrogen-containing silicone oil cross-linking agent and silicon carbide nanowires. According to the invention, a covalent network based on raw vinyl silicone rubber is constructed in the silicone rubber, and zinc acrylate and silicon carbide nanowires form an ionic network, so that the double-network structure not only can improve the technical problem of high probability of rubber overflow in the preparation process of the silicone rubber, but also can enable the silicone rubber to obtain better mechanical properties.

The invention relates to the technical field of rubber for shoes, in particular to wear-resistant sole rubber and a preparation method and application thereof.The wear-resistant sole rubber comprises raw rubber and additives, the raw rubber is composed of rare earth butadiene rubber and block type high styrene vinyl solution polymerized styrene-butadiene rubber, the additives comprise a reinforcing filler, a plasticizer, a surface modifier of the reinforcing filler, a peroxide bridging agent, an accelerant of the peroxide bridging agent, an anti-aging agent and an iron ion absorbent, the raw rubber and part of the additives are mixed and then internally mixed to obtain a mixture, then the mixture is subjected to thin-passing after being discharged and then processed into a sample sheet, and the sample sheet is subjected to hot pressing to obtain the high-strength rubber. And spreading the obtained first intermediate, adding a peroxide bridging agent, carrying out triangular bag making and sheet discharging, and vulcanizing the obtained second intermediate in a mold to obtain the wear-resistant sole rubber. The wear resistance of rubber soles with special purpose requirements such as sports shoes and outdoor shoes prepared by the invention is greatly improved, and higher wear resistance requirements can be met.

The present invention relates to the technical field of thermally conductive silicone rubber, and in particular to a thermally conductive silicone rubber and a preparation method thereof. The present invention proposes a thermally conductive silicone rubber and a preparation method thereof. A thermally conductive silicone rubber, the raw materials of the silicone rubber include: vinyl-terminated polydimethylsiloxane, vinyl MQ resin, hydrogen-containing silicone oil, ethynyl cyclohexanol, and modified silver powder; the modified silver powder is a mixture containing silicone resin and silver powder. In the thermally conductive silicone rubber provided by the present invention, by using silicone resin-coated silver powder, the thermally conductive silicone rubber of the present invention has suitable fluidity and high thermal conductivity before curing, which can meet the market demand for the use of ultra-high thermal conductivity silicone rubber. The thermally conductive silicone rubber provided by the present invention can be applied to structural heat dissipation components such as ultra-high power light-emitting chips.

The invention relates to the technical field of transformer sealing rubber, in particular to an ACM rubber material for sealing a high-performance transformer and a preparation method of the ACM rubber material. The ACM rubber sizing material for sealing the high-performance transformer comprises the following raw materials: 80-150 parts of acrylate rubber, 5-15 parts of ethylene acrylate rubber, 5-15 parts of epoxy resin, 5-10 parts of graphene oxide, 1-5 parts of tetraethoxysilane, 1-3 parts of dendritic polyamidoamine, 1-2 parts of a plasticizer, 1-3 parts of an anti-aging agent, 1-2 parts of a vulcanizing agent and 0.1-0.5 part of an assistant vulcanizing agent. The preparation method is simple, all the raw materials are uniformly mixed, the crosslinking effect is good, the rubber material strength is high, the service life of the transformer sealing element under the low-temperature working condition can be remarkably prolonged, the leakage rate can be remarkably reduced, the rubber material has the extremely low compression set rate and the high mechanical performance, and reliable guarantee is provided for safe operation of electrical equipment.

The present application relates to the technical field of rubber, in particular to a kind of hydrazide compound, rubber composition and its preparation method and application.The present application provides a kind of hydrazide compound, is mono-hydrazide compound or double hydrazide compound, they have lower melting point, can be well dispersed in rubber matrix in the range of mixing temperature, further ensure its effect.And the hydrazide compound of this kind is added to rubber composition, can obtain the tire product of processing performance improvement, dynamic modulus promotion, anti-wet sliding and balanced rolling resistance.

The invention discloses a rubber material with low vulcanization activation energy as well as a preparation method and application thereof, and relates to the technical field of rubber. The invention provides a rubber material with low vulcanization activation energy. The rubber material is prepared from the following components in parts by weight: 100 parts of rubber, 0.5-5 parts of sulfur, 0.3-5 parts of an accelerant, 3-10 parts of metal oxide, 1-8 parts of stearic acid, 0.5-5 parts of organic alkali and 0-5 parts of a dispersing agent. The method does not need to greatly adjust the original formula of a rubber product, has the advantages of low-temperature rapid vulcanization, maintenance of the original performance of the rubber product and the like, and can realize energy conservation and emission reduction, improve the production efficiency, prolong the service life of equipment and improve the operation comfort of workers.

The invention relates to the technical field of rubber, and provides a high-strength rubber transmission belt as well as a preparation method and application thereof. The high-strength rubber transmission belt is prepared from the following raw materials in parts by weight: 90 to 110 parts of ethylene propylene diene monomer, 6 to 10 parts of aramid fiber, 3 to 9 parts of nylon, 40 to 50 parts of filler, 4 to 6 parts of vulcanizing activator, 5 to 9 parts of paraffin oil, 4 to 7 parts of adhesive, 3 to 4 parts of anti-aging agent, 11 to 15 parts of auxiliary vulcanizing agent, 2 to 4 parts of vulcanizing agent and 0.1 to 0.5 part of scorch retarder. The filler is prepared from the following raw materials in parts by weight: 100 parts of carbon black, 5 to 7 parts of 4-maleimidobenzoic acid and 5 to 7 parts of 2, 2-dimethylolpropionic acid. Through the technical scheme, the problem of insufficient strength of the rubber transmission belt in the related technology is solved.

The invention relates to the technical field of tire rubber, and discloses a cord fabric rubber composition containing composite masterbatch and a preparation method of the cord fabric rubber composition. Composite masterbatch is introduced into the rubber composition, and the rubber composition is prepared by mixing natural rubber, liquid regenerated rubber, cracked carbon black and hexamethylenetetramine. Wherein the glass transition temperature Tg of the liquid regenerated rubber is-60 to-50 DEG C, and the oil content of the liquid regenerated rubber is 4-8wt%; the BET specific surface area of the cracked carbon black is 60-100 m < 2 >. G <-1 >, the ash content is 15-25 wt%, and the ZnS content in the ash content is 5-12 wt%. The added composite master batch can effectively replace part of natural rubber and furnace black, the bonding strength and fatigue resistance of the rubber material are improved and the scorching safety area is expanded on the premise of not influencing the mechanical properties of the rubber composition, and the composite master batch is beneficial to reduction of heavy metal emission and carbon emission and improvement of economic benefits.

The invention relates to the technical field of rubber, and provides an insulating flame-retardant rubber tube for an automobile temperature control system and a preparation method of the insulating flame-retardant rubber tube. The insulating flame-retardant rubber tube for the automobile temperature control system sequentially comprises an inner contact layer, a reinforcing layer and an outer protective layer from inside to outside, the inner contact layer and the outer protective layer are consistent in formula and comprise nitrile rubber, ethylene propylene diene monomer, modified magnesium hydroxide, dioctyl phthalate, zinc oxide, an anti-aging agent, a vulcanizing agent and a processing aid; the reinforcing layer comprises chlorosulfonated polyethylene rubber, modified magnesium hydroxide, boron nitride phosphonitrile, antimony trioxide, diisononyl phthalate, an anti-aging agent, a vulcanizing agent, zinc oxide and a processing aid. According to the insulating flame-retardant rubber tube for the automobile temperature control system, the flame retardance is improved, and the problem that the insulating property is reduced in the long-term use process is solved.

The application belongs to the technical field of rubber, and particularly relates to a chloroprene rubber compound, a preparation method and application thereof, and a rubber pad. The chloroprene rubber compound comprises the following components in mass fractions: chloroprene rubber 40-80 parts; cis-butadiene rubber 20-60 parts; flame retardant 50-90 parts; titanium white powder 4-10 parts; reinforcing agent 42-65 parts; anti-aging agent 1-4 parts; silane coupling agent 4-16 parts; plasticizer 4-12 parts; mildew-proof agent 0.5-4 parts; vulcanizing agent 1-3 parts; activator 0.5-3 parts; accelerator 0.2-15 parts; and the flame retardant comprises flame retardant SFR-3B and aluminum hydroxide. The chloroprene rubber compound provided by the application can further improve the thermal stability of the compound on the basis of ensuring the flame retardant property.

The invention relates to the technical field of anisotropic rubber, and particularly discloses anisotropic radiation-resistant rubber and a preparation method thereof, aiming at the problems that rubber used in nuclear industry such as shock absorption and isolation rubber components is always easy to crack, discolor, harden and the like due to the influence of a nuclear radiation environment at present, and particularly discloses the anisotropic radiation-resistant rubber and the preparation method thereof. Comprising 10%-30% of a rubber matrix, 65%-68% of irradiation-resistant particles, 1%-3.5% of an active agent, 1.2%-3.7% of an anti-aging agent, 3%-5% of a reinforcing agent, 0.8%-1.2% of a softening agent, 0%-0.2% of an accelerant and 0.5%-1.2% of a vulcanizing agent. Each radiation-resistant particle comprises a core layer, a middle layer and a shell layer, the core layer comprises lead tungstate and bismuth oxide, the middle layer comprises a biphenyl-nano SiO2 bonding body, and the shell layer comprises diphenyl acetylene grafted graphene oxide. By introducing the radiation-resistant particles with multiple structures and functional characteristics, the material performance stability of the anisotropic rubber in a radiation environment can be remarkably improved, so that the use requirements of the fields and scenes such as nuclear industry devices and the like are met.

The invention relates to the technical field of rubber, in particular to an off-road tire base rubber composition. Based on 100 parts by weight of natural rubber components, the natural rubber composition further comprises the following components in parts by weight: 20-40 parts of carbon black, 5-15 parts of silicon dioxide hydrate, 5-20 parts of nano zinc oxide, 1-3 parts of stearic acid, 1-3 parts of p-phenylenediamine, 1-3 parts of a ketoamine anti-aging agent, 1-3 parts of bis (triethoxysilyl) propyl tetrasulfide, 1-5 parts of carbon nanotubes CNT, 1-4 parts of N, N '-m-phenylene bismaleimide, 0.5-2 parts of sulfur and 0.5-2 parts of a sulfenamide accelerant. The modulus of the rubber material is improved by adding the CNT, so that the consumption of carbon black is reduced, and heat generation is reduced; by adding nano zinc oxide and carbon nanotubes, the heat conductivity of the rubber material is improved; and by adding the N, N '-m-phenylene bismaleimide, the heat resistance of the rubber material is improved.

The application discloses modified white carbon black wet rubber glue based on white carbon black as well as a preparation method and application thereof, and belongs to the technical field of rubber.The solution blending method is used in the embodiment of the application, and the prepared modified white carbon black can be easily uniformly dispersed in a rubber matrix.Compared with the prior art, the application can further improve the dispersion of high filling amount white carbon black in the rubber material, and can adjust the types and contents of two silane coupling components to control the mechanical properties and fatigue resistance of the wet rubber glue.The white carbon black wet rubber glue can be applied in tire preparation and has excellent comprehensive performance.

The present application relates to the technical field of rubber, in particular to a kind of giant engineering machinery tire anti-split body rubber composition and preparation method thereof. With 100 parts by weight of natural rubber component as benchmark, further comprising the following components: natural rubber 100 parts, carbon black 40-50 parts, zinc oxide 6-8 parts, cobalt salt 0.2-0.4 parts, antioxidant 2246 0.5-1 part, antioxidant S-TMQ 0.2-1.0 parts, N,N'-4,4'-diphenyl methane bismaleimide 0.5-1.5 parts, insoluble sulfur 8-12 parts, accelerator 0.3-0.7 parts, anti-scorching agent 0.05-0.15 parts. The present application solves the shortcomings of lower adhesive property of body rubber and insufficient anti-splitting ability of existing technology under harsh road conditions and hot and humid, steam, salt water environment, greatly reduces the occurrence probability of body delamination and bead bulging under hot and humid environment in Southeast Asia, improves the anti-splitting ability of body rubber, and ensures the service life of giant tire under high load operation.

The application belongs to the technical field of rubber, and particularly relates to an environment-friendly weather-resistant high-wear-resistance handrail belt rubber material and a preparation method thereof. The rubber material comprises, in terms of weight parts, 80-95 parts of styrene-butadiene rubber, 5-20 parts of butadiene rubber, 70-90 parts of carbon black, 6-9 parts of active agent, 3-5 parts of environment-friendly paraffin oil or naphthenic oil, 4-7 parts of anti-aging agent composition, 1-2 parts of accelerator and 1.5-2.5 parts of vulcanizing agent. The anti-aging agent composition is a combined system of p-phenylenediamine anti-aging agent and quinoline anti-aging agent. Through the synergistic effect of the rubber combined system, the gradation optimization of the reinforcing system and the synergistic effect of the anti-aging agent composition, the application simultaneously realizes high wear resistance, excellent weather resistance (ozone and thermal oxygen aging resistance), low-temperature toughness at-45 DEG C and environment-friendly performance of PAHs <= 10 ppm, and the comprehensive performance is significantly better than that of the existing handrail belt material, and the eight-year service life requirement of public places can be met.

The application provides a sound insulation rubber composite material and a preparation method and application thereof, and belongs to the technical field of rubber, and the preparation method comprises the following steps: butyl rubber and ethylene-propylene-diene rubber are added into a banbury mixer for plasticizing, then carbon black, a metal oxide compound, a modifying additive, a vulcanization activator and an antioxidant are added for mixing, vulcanization accelerators and vulcanization agents are further added for mixing, and then glue is discharged to obtain a rubber compound; the rubber compound is placed in an open mill for thin mixing and storage to obtain a mixed rubber; the mixed rubber is vulcanized on a flat vulcanizing machine to obtain the sound insulation rubber composite material; wherein the metal oxide compound is prepared by calcining and crushing cerium dioxide, titanium dioxide and silicon dioxide; and the modifying additive is prepared by using a functional polymer and modified hollow glass microbeads; the sound insulation rubber composite material has good sound insulation performance and durability, and the preparation process is simple.

This invention discloses an organocobalt salt for improving the tensile strength of rubber and its preparation method, belonging to the field of rubber technology. The organocobalt salt for improving the tensile strength of rubber comprises, by mass parts, 140-210 parts of organosilicon vegetable fatty acid, 20-30 parts of solvent, 20-30 parts of cobalt hydroxide, and 10-16 parts of propionic acid. The organosilicon vegetable fatty acid is obtained by reacting rosin with organosilicon maleimide. The organosilicon maleimide is obtained by reacting maleic anhydride with a silicon-containing long-chain fatty amine. The silicon-containing long-chain fatty amine is obtained by reacting methyldiethoxysilane with an unsaturated long-chain fatty amine. The organocobalt salt obtained by this invention has a good effect on promoting the adhesion between metal and rubber while effectively improving the tensile strength of rubber.

The utility model provides nitrile rubber preparation equipment, which belongs to the technical field of nitrile rubber, and comprises a rubber mixing mechanism and a fixed frame, the top of the fixed frame is fixedly connected with a material guide mechanism, and the inner side of the fixed frame is fixedly connected with a storage mechanism. The storage box, the electric heating tube, the temperature controller and the ventilating fan are additionally arranged on the fixing frame, the storage box provides storage space for nitrile rubber, meanwhile, when electric energy is transmitted into the temperature controller through an external control part, the temperature controller detects the temperature in the storage box, and the ventilating fan is arranged in the storage box. When the temperature in the storage box is too low, the temperature controller transmits electric energy to the interior of the electric heating pipe, at the moment, the electric heating pipe conducts heat into the storage box through the electric heating effect, meanwhile, the ventilating fan rotates, the air velocity of the storage box is increased, and then the storage effect of nitrile rubber is improved.

The invention relates to the technical field of sealing rubber, and discloses a high-pressure gas-resistant tear-resistant water heater sealing rubber material and a production process thereof, the high-pressure gas-resistant tear-resistant water heater sealing rubber material comprises the following raw materials by weight: 90-110 parts of a rubber matrix, 60-80 parts of nitrile rubber, and 20-40 parts of hydrogenated nitrile rubber; the acrylonitrile content of the nitrile rubber is 32%-36%; the composite material comprises the following components in parts by weight: 30-45 parts of a reinforcing filler system, 20-30 parts of carbon black N550 and 8-15 parts of nano white carbon black, and the nano white carbon black is precipitated white carbon black. 1.5 to 3 parts of a coupling agent, wherein the coupling agent is at least one of bis-(gamma-triethoxysilylpropyl) tetrasulfide and bis-(gamma-triethoxysilylpropyl) disulfide; the nitrile rubber and the hydrogenated nitrile rubber are cooperatively used, the carbon black N550 and the nano white carbon black in a specific proportion are matched to form a reinforcing system, and meanwhile, the silane coupling agent is used for enhancing interface bonding, so that the material has excellent mechanical properties and high pressure resistance.

The invention relates to the technical field of liquid silicone rubber, in particular to luminous addition type liquid silicone rubber and a preparation method thereof, and the luminous addition type liquid silicone rubber is prepared from vinyl silicone oil, hydrogen-containing silicone oil, a Karst catalyst, an alcohol inhibitor, a cross-linking agent, filler, a white carbon black surface treating agent, a long afterglow luminescent material and the like. The silicone rubber comprises a component A and a component B in parts by mass, the component A comprises 100 parts of base rubber and 0.01-5 parts of a platinum catalyst, and the component B comprises 100 parts of base rubber, 0.5-5 parts of a cross-linking agent, 0.01-3 parts of an inhibitor and 5-50 parts of a long-afterglow luminescent material treated by a silane coupling agent. The base rubber comprises 15-40 parts of white carbon black, 30-70 parts of vinyl silicone oil, 2-15 parts of a white carbon black surface treating agent, 10-35 parts of silicon resin and 1-5 parts of water. According to the invention, a specific luminescent material is added, so that the material has a lasting luminescence function after being cured. And the light-emitting addition type liquid silicone rubber can be applied to the fields of light-reflecting vests, safety clothes, safety signs and the like.

The present invention relates to the technical field of thermally conductive silicone rubber, and in particular to thermally conductive silicone rubber and a preparation method therefor. The present invention provides thermally conductive silicone rubber and a preparation method therefor. The thermally conductive silicone rubber comprises: vinyl-terminated polydimethylsiloxane, vinyl MQ resin, hydrogen-containing silicone oil, ethynylcyclohexanol, and modified silver powder. The modified silver powder is a mixture containing a silicone resin and silver powder. The use of the silver powder coated with the silicone resin in the thermally conductive silicone rubber provided by the present invention enables the thermally conductive silicone rubber to exhibit suitable flowability before curing and a high thermal conductivity coefficient, and to meet use requirements for silicone rubber having ultra-high thermal conductivity on the market. The thermally conductive silicone rubber provided by the present invention can be applied to structural heat dissipation components such as ultra-high power light-emitting chips.

The invention belongs to the technical field of rubber, and discloses an aviation radial tire cap strip adhesive and a preparation method of the aviation radial tire cap strip adhesive. The preparation method comprises the following steps: mixing fast extruding furnace black, high-dispersion white carbon black, a white carbon black dispersing agent, a silane coupling agent, an adhesive, a heat stabilizer, a heat-conducting reinforcing agent and an anti-reversion agent in specific parts by weight, preparing a rubber compound through processes of mixing by an internal mixer, filtering by a filter and the like, preparing the rubber compound into a rubber material semi-finished product in a manner of extruding by an extruder, and packaging the rubber material semi-finished product. The device is used for extruding cap strips. The cap strip adhesive prepared by the invention is low in heat generation, high in tear strength, high in adhesive strength and good in thermal stability, and is more suitable for the requirements of new models on high speed and high load of tires. The rubber material is low in shrinkage rate, good in bonding performance and high in rubber material performance retention rate in the using process, the using safety of the tire is improved, and the service life of the tire is prolonged.

The invention relates to the technical field of liquid silicone rubber, and particularly discloses a wear-resistant liquid silicone rubber composite material and a preparation method thereof. The composite material comprises a component A and a component B, wherein the component A comprises vinyl-terminated silicone oil, nano aluminum oxide double-modified by a polyhydroxy polymer and a vinyl silane coupling agent, and a platinum catalyst; the component B comprises vinyl-terminated silicone oil, hydrogen-containing silicone oil, an inhibitor and active polysilazane, the active polysilazane is modified polysilazane containing vinyl or epoxy group, and the active group of the active polysilazane can chemically react with the active group on the surface of the modified nano aluminum oxide to form a chemically bonded interface transition layer. According to the invention, through a dual modification strategy and introduction of active polysilazane, a chemically bonded rigid-flexible bicontinuous network structure is constructed, so that the wear resistance of the composite material is improved while excellent tensile strength, tear strength and elongation at break are maintained.

The invention relates to the technical field of rubber, in particular to modified polyisoprene rubber and a preparation method and application thereof.The preparation method at least comprises the following steps that polyisoprene rubber is placed on a roller of an open mill, the roller speed of the open mill is controlled to be 20-60 rpm, the roller distance is 0-3 mm, the roller temperature is controlled to be 40-70 DEG C, mixing is conducted, and the modified polyisoprene rubber is obtained; the molecular weight is reduced by chain scission through a mechanical means, the viscosity of the polyisoprene rubber is reduced, the modified polyisoprene rubber is obtained, the processing performance is improved, and the polyisoprene rubber can be used for preparing cyclized rubber resin for photoresist, so that the polyisoprene rubber has huge development potential in the field of adhesives.

The invention relates to the technical field of organic silicon rubber, and discloses single-component organic silicon rubber and a production process thereof. Comprising the following components in parts by weight: 60-80 parts of a polysiloxane base polymer containing vinyl and phenyl, 5-10 parts of a composite cross-linking agent, 0.5-2 parts of an organic tin-amine composite curing accelerator, 10-15 parts of surface modified composite filler, 1-3 parts of an antioxidant, 0.5-2 parts of an ultraviolet light absorber, 2-5 parts of a montmorillonite intercalation body and 1-3 parts of a dynamic imine bond cross-linking agent. And 0.5 to 1.5 parts of a silane coupling agent. A double cross-linked network and ternary composite filler system is constructed through single-component organic silicon rubber by virtue of a multi-component synergistic effect, so that mechanical property enhancement, aging resistance improvement, oxygen barrier property enhancement, self-repairing function perfection and processability optimization are realized; the problems of incomplete curing and short service life caused by a single crosslinking system of a traditional product are solved.

The application relates to the technical field of rubber, and discloses a high-strength rubber transmission belt and a preparation method and application thereof. The high-strength rubber transmission belt comprises the following components by weight: 90-110 parts of ethylene-propylene-diene rubber, 6-10 parts of aramid fiber, 3-9 parts of nylon, 40-50 parts of filler, 4-6 parts of vulcanization activator, 5-9 parts of paraffin oil, 4-7 parts of adhesive, 3-4 parts of anti-aging agent, 11-15 parts of vulcanization aid, 2-4 parts of vulcanizing agent and 0.1-0.5 parts of anti-scorching agent. The filler comprises the following components by weight: 100 parts of carbon black, 5-7 parts of 4-maleimide benzoic acid and 5-7 parts of 2,2-dimethylol propionic acid. The technical scheme can solve the problem of insufficient strength of the rubber transmission belt in the related art.

This invention discloses a modified rubber powder with oil resistance and anti-aging properties, and its preparation method, belonging to the field of rubber technology. Vulcanized rubber powder is pretreated with anhydrous ethanol to obtain pretreated rubber powder; the pretreated rubber powder, a composite modifier dispersion, and a photoinitiator are mixed to obtain a compound; the compound is treated with ultraviolet light to obtain a crosslinked compound; the crosslinked compound is then washed, dried, and sieved through a 40-mesh sieve to obtain the modified rubber powder. This invention uses alkali lignin and nano-titanium dioxide as raw materials, and through coordination self-assembly and click chemistry modification, obtains a modified rubber powder with good oil resistance, anti-aging properties, and good interfacial compatibility. The composite modifier forms a three-dimensional network protective layer on the surface of the rubber powder, which can effectively block oil penetration and significantly improve resistance to ultraviolet and thermo-oxidative aging.