739 results about "Raw rubber" patented technology

The invention discloses a preparation method of flame-retardant silicone rubber resistant to long-term thermal aging, and relates to the technical field of high-molecular compound composition anti-aging rubber. The flame-retardant silicone rubber is prepared from the following components in parts by mass: 75 to 100 parts of methyl vinyl silicone rubber raw rubber, 18 to 28 parts of fumed silica, 20 to 35 parts of aluminum oxide trihydrate, 0.5 to 3 parts of platinum flame-retardant synergist, 2 to 5 parts of heat-resistant additive, 1.5 to 2.5 parts of structured control agent, 1 to 2 parts of cross-linking agent, 2 to 10 parts of anti-aging agent and 8 to 13 parts of fluorinated silicone rubber. Through a synergistic flame-retardant system, the silicone rubber disclosed by the invention shows obvious advantages in flame-retardant capability, can reach a higher flame-retardant grade, effectively delays flame propagation, and reduces the risk of fire disasters. The weather resistance of the silicone rubber is remarkably improved due to the ultraviolet absorption function and the anti-oxidation function of the anti-aging agent, so that the silicone rubber can effectively resist ultraviolet rays and oxidation under the long-term outdoor solarization condition, and the performance reduction and the appearance deterioration are reduced.

The invention discloses ceramic fluorinated silicone rubber and a preparation method thereof. The ceramizable fluorosilicone rubber comprises the following raw materials in parts by weight: 100 parts of fluorosilicone raw rubber, 10-30 parts of fumed silica, 4-8 parts of a structure control agent, 10-20 parts of an organic-inorganic compound fire-resistant filler, 4-10 parts of reinforced fibers, 20-30 parts of a carbon-based ceramic additive and 1-2 parts of a vulcanizing agent. The preparation method comprises the following steps: S1, adding the fluorosilicone raw rubber into a kneading machine, and then adding the fumed silica and the structure control agent to start mixing; s2, adding an organic-inorganic compound refractory filler, reinforced fibers and a carbon-based ceramic additive into the mixed material obtained after mixing in the step S1, and continuously mixing; s3, carrying out vacuum treatment on the material mixed in the S2, cooling the material to room temperature, adding a vulcanizing agent into a double-roller open mill, and uniformly mixing; and S4, performing tabletting vulcanization on the material mixed in the step S3 on a plate vulcanizing machine, and then performing secondary vulcanization in a drying oven to obtain the ceramization fluorinated silicone rubber.

The invention provides a method for preparing liquid reclaimed rubber through co-pyrolysis of lignin and waste rubber, and belongs to the field of rubber production and manufacturing. The industrial lignin, the waste rubber powder and the softening agent are uniformly mixed and then put into a screw extruder, moderate thermal cracking of the lignin and decrosslinking of the waste rubber powder are realized, and the prepared liquid regenerated rubber is added into a rubber composition and can replace tackifying resin, the softening agent and a plasticizer, so that the viscosity of a rubber semi-finished product is improved, the processability of a rubber material is improved, and the service life of the rubber material is prolonged. Meanwhile, the dispersion of the filler is facilitated. Meanwhile, the application range and the exerting effect of the lignin in the rubber material are also expanded, and the high-valued utilization rate of the lignin is improved.

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.

A silicone rubber with UV aging resistance and low water absorption and its preparation method and application are provided. The preparation method uses a coupling agent KH570 and glyceryl monostearate to perform modified treatment on titanium dioxide to obtain modified titanium dioxide, uses a surface-modified coupling agent A171 and glyceryl monostearate to perform modified treatment on fumed silica to obtain modified fumed silica, and further performs subsequent treatment on methyl vinyl siloxane raw rubber, silicone oil, aluminum hydroxide, the modified fumed silica, the modified titanium dioxide, zinc oxide, α-alumina, a coupling agent KH560, a defoamer, iron oxide and a vulcanizing agent to obtain the silicone rubber. The silicone rubber prepared by the preparation method has low water absorption and excellent aging resistance, and its mechanical and electrical properties are also superior.

The invention relates to the technical field of cables, in particular to a fire-resistant cable protection sleeve material, a preparation method of the fire-resistant cable protection sleeve material and a fire-resistant cable. 25 to 40 parts of a flame retardant; 10 to 20 parts of high-temperature-resistant filler; 3-8 parts of a plasticizer; 0.5 to 2 parts of an antioxidant; and 1-3 parts of a coupling agent. According to the embodiment of the invention, through the synergistic effect of the ethylene-vinyl acetate copolymer, the low-density polyethylene and the regenerated rubber, the flexibility and the mechanical strength of the material are remarkably enhanced; novel flame retardants such as boron nitride nanotubes, bio-based iron phytate and nano aluminum hydroxide are used and matched with a temperature-sensitive polymer, so that efficient and environment-friendly flame retardance is realized; meanwhile, the high-temperature-resistant filler is introduced, so that the fire-resistant temperature and the stability of the material are greatly improved. Therefore, the problems of low flame retardant efficiency, no environmental protection, contradiction between mechanical properties and high temperature resistance, performance reduction caused by addition of regenerated materials, poor processing technology compatibility, high cost and the like in the prior art are solved.

The invention discloses a high-resilience rubber material and a preparation method thereof, and belongs to the technical field of rubber preparation. The preparation method comprises the following steps: carrying out heat treatment on the raw natural rubber, mixing with the micro-nano spherical hollow powder, carrying out vacuum mixing, mixing the mixed product with the plasticizer and the processing aid, banburying, carrying out open milling on the banburying product, adding the vulcanizing agent, extruding, and finally vulcanizing. The micro-nano spherical hollow powder is introduced in the rubber production process, the targeted preparation method is designed, the high-resilience rubber material is obtained, the resilience performance of rubber is improved, and the preparation method is simple and suitable for industrial production.

The invention discloses a preparation method of silicone rubber and the silicone rubber, and belongs to the field of silicone rubber. The preparation method comprises the following steps: dispersing fumed silica in an acid solution to obtain a fumed silica solution, dispersing chitosan in a dilute acid solution to obtain a chitosan solution, mixing the fumed silica solution and the chitosan solution, stirring, centrifuging, washing and drying to obtain a coated product; mixing the coated product, magnesium hydroxide, raw rubber, a cross-linking agent, a vulcanizing agent and a catalyst, heating and kneading, and vacuumizing to obtain initial silicone rubber; the preparation method comprises the following steps: dissolving 1-hydroxycyclohexyl phenyl ketone into an organic solvent to obtain a solution A, mixing acrylic acid, phenyl bis (2, 4, 6-trimethylbenzoyl) phosphine oxide and titanium dioxide to obtain a solution B, soaking initial silicone rubber into the solution A, taking out, airing, soaking into the solution B, and carrying out ultraviolet curing, cleaning and airing to obtain the silicone rubber. The heat-conducting property, the mechanical property and the wet friction property of the silicone rubber are greatly improved.

The invention relates to the technical field of waterproof coiled materials, and particularly discloses a self-adhesive modified rubber asphalt waterproof coiled material and a preparation method thereof. The self-adhesive modified rubber asphalt waterproof coiled material comprises a surface isolating membrane, an asphalt layer, a reinforcing layer and a bottom surface isolating membrane from bottom to top, and the asphalt layer comprises the following raw materials: regenerated rubber modified asphalt, SEBS, terpene resin, polyisobutene amine, an antioxidant and an ultraviolet light absorber; the surface isolating membrane and the bottom isolating membrane are selected from sand surface isolating membranes, and the thickness of the surface isolating membrane and the bottom isolating membrane is 0.8-1.2 mm; and the reinforcing layer is a long-fiber polyester base reinforcing layer. The tensile strength of the self-adhesive modified rubber asphalt waterproof coiled material is 4.5-5.6 N / mm < 2 >, the self-adhesive modified rubber asphalt waterproof coiled material does not flow or drip at 70 DEG C and does not crack at-30 DEG C, the self-adhesive modified rubber asphalt waterproof coiled material has high use performance, the joint peel strength of the waterproof coiled material is 3.2-4.2 N / mm, the holding power is greater than 15 min, and the self-adhesive property of the waterproof coiled material is improved.

The invention relates to a waterproof sealing gasket material for a shield tunnel and a preparation method of the waterproof sealing gasket material. The preparation method comprises the following steps: plastifying raw rubber to obtain plastified raw rubber; the preparation method comprises the following steps: stirring and mixing plasticated raw rubber, carbon black N550, calcium carbonate, paraffin oil, zinc oxide, stearic acid, calcium oxide, an anti-aging agent and an organic magnesium compound, mixing in a mixing mill, and cooling to room temperature to obtain a mixture I; stirring and mixing the mixture I, modified NPE particles and an accelerant, mixing, and cooling to room temperature to obtain a mixture II; uniformly mixing the mixture II and sulfur in a mixing mill, vulcanizing at high temperature, and standing at room temperature for 24 hours to obtain the waterproof sealing gasket material. According to the waterproof sealing gasket material, the modified NPE particles of the core-shell structure are added, the compatibility of a water-swelling material and non-polar rubber is improved, the organic magnesium compound is added as a multifunctional auxiliary agent, the interface bonding, vulcanization network and flame retardant performance are synergistically improved, and the waterproof sealing gasket material has good waterproof performance. The prepared sealing gasket material has excellent mechanical properties, heat aging resistance, compression set resistance and flame retardance.

The invention belongs to the technical field of low-temperature silicone rubber mixing, and particularly relates to a low-temperature silicone rubber mixed rubber closed mixing device which comprises a support, the support is placed on the ground, a transition mechanism is installed at the upper end of the interior of the support, and the transition mechanism is used for conducting blocking and discharging transition operation on premixed materials. A transition mechanism is arranged at the upper end of the main mixing mechanism, a premixing mechanism is detachably arranged at the upper end of the transition mechanism, a main mixing mechanism is detachably arranged at the lower end of the transition mechanism, and a rotor mechanism is rotatably connected between the premixing mechanism and the main mixing mechanism. The rubber material performance difference caused by temperature fluctuation is greatly reduced, the stability of product quality is ensured, pre-dispersion of raw rubber, silicone oil and white carbon black can be realized, meanwhile, molecular chain breakage caused by long-time retention of the rubber material in a high-temperature area is avoided, and the physical properties of the material are retained.

The invention relates to the technical field of concrete preparation, and particularly discloses foam concrete with good durability and a preparation method thereof. The invention discloses foam concrete with good durability. The foam concrete is prepared from the following raw materials in parts by mass: 90 to 120 parts of cement, 40 to 60 parts of fly ash, 30 to 55 parts of regenerated rubber powder, 2.7 to 3.5 parts of fiber, 2 to 4 parts of sodium carboxymethyl starch, 0.2 to 0.4 part of inulin, 0.7 to 1 part of foaming agent, 0.43 to 0.92 part of water reducing agent and 63 to 86 parts of water. The foam concrete provided by the invention has good mechanical properties, working performance and durability.

The invention relates to the technical field of external insulating materials for power equipment, in particular to silicone rubber, a preparation method thereof and application of the silicone rubber in a composite insulator. The silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of methyl vinyl silicone rubber raw rubber, 5-20 parts of hydrophobic silicon dioxide aerogel powder, 3-15 parts of conductive and heat-conducting filler, 10-30 parts of modified aluminum hydroxide, 15-35 parts of fumed silica, 1-3 parts of a silane coupling agent and 2-5 parts of a structuring control agent, 1-4 parts by weight of a low surface energy auxiliary agent, and 0.5-2 parts by weight of a vulcanizing agent. The silicone rubber provided by the invention integrates long-acting hydrophobic anti-icing, active low-power-consumption ice melting and excellent arc ablation resistance, has long-term stability, and is especially suitable for high-voltage insulators in severe environments such as heavy ice areas and heavy dirty areas.

The invention provides an easy-to-clean organosilicone temporary bonding material and a preparation method and application thereof, and the easy-to-clean organosilicone temporary bonding material comprises the following components by weight: 40-70% of an organic solvent; 10%-25% of vinyl raw rubber; 10%-35% of hydrogen-containing silicone oil; 1%-5% of a reinforcing agent; 0.5 to 1 ppm of a catalyst; and 0.5%-1.5% of an inhibitor. Conventional vinyl silicone oil is abandoned, vinyl raw rubber is used as a crosslinking main body, the viscosity and stability of the product can be more efficiently regulated and controlled, meanwhile, a proper amount of reinforcing agent is added, the heat resistance and tensile property of the product are improved, the product has the advantages of organic silicon, the bonding requirement is met, and the production cost is reduced through a subsequent high-temperature process. And finally, the cleaning removal performance after de-bonding can also be improved.

The invention discloses a novel insulating silicone rubber packaging material with a self-fusion characteristic, high voltage resistance and weather resistance. The material is prepared from raw methyl vinyl silicone rubber, fumed silica as a reinforcing filler, modified vinyl MQ silicone resin as a tackifier, hydroxyl silicone oil as a structure control agent, modified aluminum hydroxide and the like as raw materials, has a self-fusion characteristic, can be autonomously bonded to form a seamless insulating layer through contact pressing of two lap joint surfaces, and has the initial peel strength of 3.5 N / mm and the tensile strength of 95N / mm. The secondary fusion strength retention rate exceeds 90%; the power frequency withstand voltage under the thickness of 2mm is greater than or equal to 45kV, the power frequency withstand voltage under the thickness of 4mm reaches 66kV, and the volume resistivity is gt; and 1 * 10 < 12 > omega.m, which is improved by more than 50% compared with the traditional material. The product gives consideration to both mechanical performance and weather resistance, the thick wing-shaped sheet structure is adaptive to special-shaped equipment and can be installed in an electrified mode, and an innovative insulation protection scheme can be provided for power transmission and transformation equipment.

The utility model relates to the technical field of rubber cutting, and discloses a regenerated rubber cutting device which comprises a cutting box, one side of the upper surface of the cutting box is fixedly connected with an air blower, the output end of the air blower is fixedly connected with an air inlet pipe, the outer surface of a communicating pipe is fixedly connected with an air nozzle, the two sides of the cutting box are provided with an inlet and an outlet, and the air inlet and the outlet are communicated with each other. A second motor is fixedly connected to one side of the support, a roller is fixedly connected to the output end of the second motor, a conveying belt is arranged on the outer surface of the roller, a cutting groove is fixedly connected to one side of the top end of the support, and a fodder chopper is rotationally connected to the interior of the cutting groove through a rotating shaft. According to the utility model, the possibility of damage to machinery is reduced, manual cleaning is reduced, the working efficiency is increased, the quality of materials is ensured, the capability of sustainable processing is achieved, the effect of accurate processing is increased, the safety is enhanced, the working efficiency is improved, and the practicability of the device is improved.

The invention provides organic silicon capable of being de-bonded by laser as well as a preparation method and application of the organic silicon. The organic silicon comprises the following components: an organic solvent, vinyl raw rubber, vinyl silicone oil, hydrogen-containing silicone oil, a light-absorbing filler, a platinum catalyst and an inhibitor. The invention provides an organic silicon bonding adhesive which is strong in bonding force, strong in chemical corrosion resistance and smooth in film surface. The organic silicon bonding adhesive can be used for smoothly and firmly adhering a wafer to a carrier with certain mechanical strength in a back grinding process; the temporary bonding glue can be separated from the supporting carrier in a laser irradiation mode, the bonded carrier does not need to be additionally spin-coated with a laser release layer material, the processing time is shortened, and meanwhile the problems that the bonding force between the temporary bonding glue and the laser release material layer is not uniform and unstable and the like are solved.

The first aspect of the invention provides the rubber material, and the formula raw materials comprise raw rubber, a reinforcing system, a protection system, a vulcanization system and a processing aid; the processing aid comprises an aid composition capable of inhibiting the surface of the rubber product from being colored, the content of silica gel microspheres is 95%-98%, the content of a salting-out agent is 1%-3%, the content of an anti-agglomeration agent is 1%-2%, and the silica gel microspheres are porous silica gel microspheres. Secondly, the invention provides an additive composition capable of inhibiting the surface of the rubber product from being colored; the invention provides a rubber product in the third aspect, and the additive composition capable of inhibiting the surface color flooding of the rubber product is added in the preparation process of a rubber compound. The assistant composition disclosed by the invention can inhibit the surface flooding of the rubber product caused by various factors, has a multi-dimensional and high-efficiency flooding inhibition function, can endow the rubber product with good wear resistance, can reduce the wear of the rubber caused by external damage and improve the overall performance of the rubber, and has the cost advantage.

The invention belongs to the technical field of cable design and manufacturing, and particularly relates to a heat insulation type cross-linked polyolefin cable which is provided with a polyolefin sheath layer, the polyolefin sheath layer comprises a polyolefin base material, methyl vinyl silicone rubber raw rubber and a cross-linking agent microcapsule, a peroxide cross-linking agent is coated in the form of the microcapsule, and the cross-linking agent microcapsule is coated with a peroxide cross-linking agent. Vinyl reaction polymerization between the silicone rubber caused by exposure of the cross-linking agent in the middle-early stage of extrusion is effectively reduced; when the extrusion temperature rises to a certain degree, the capsule wall of the microcapsule is greatly molten to effectively release the cross-linking agent, and the cross-linking agent is used for initiating a polyolefin molecular chain and a silicone rubber molecular chain to jointly react and be cross-linked together, so that cross-linking aggregation between silicone rubber in a matrix is effectively reduced; and the thermal insulation contribution of the silicone rubber can be developed, and the overall mechanical property of the sheath can be guaranteed.

The invention relates to the technical field of regenerated rubber preparation, in particular to a preparation method of high-performance regenerated rubber based on modified calcium sulfate whiskers and rice husk charcoal, which comprises the following steps: S1, mixing anhydrous calcium sulfate and absolute ethyl alcohol, pouring into a four-mouth bottle, carrying out ultrasonic treatment for 0.5 hour, heating to 80 DEG C while stirring in a water bath kettle, adding a surface modifier, and stirring for 0.5 hour; heating for 5 hours, centrifugally washing, and drying the final product in a vacuum drying oven for 2 hours to obtain the modified calcium sulfate whisker. S2, preparing modified rice husk charcoal; and S3, mixing the modified calcium sulfate whiskers, the modified rice husk charcoal and regenerated rubber by using an open mill, uniformly mixing, putting into a mold, and tabletting by using a press vulcanizer to obtain the high-performance regenerated rubber based on the modified calcium sulfate whiskers and the rice husk charcoal. The industrial by-product calcium sulfate and the agricultural waste rice husk are used as raw materials and have the characteristics of no pollution and regeneration cycle, the high-performance filler is prepared through a green process, and the production cost is reduced while the rubber performance is improved.

A floating beared coned of tablet or power docking station. The cone includes a base and a cap. The cone further includes locks for locking a cone valve of a container and silicone member and is horizontally beared via at least one bearing and a carrier elements of the at least one bearing which is fixed to a cylinder of the cone and placed between and upper carrier plate and a lower carrier plate. The cone is centered via at least one spring pin and eccentrically locked via at least one eccentricity lock and enables eccentrical adaptation and adjustment in all horizontal direction up to 12 mm and opening and closing of the cone valve of the container eliminates hygienical rubber over the entire surface of the cone.

The invention discloses a high-strength acrylate rubber material and a preparation method thereof, and relates to the technical field of high polymer materials. When the high-strength acrylate rubber material is prepared, polyhydroxy imidazolium salt and phosphorus pentoxide react to prepare a functional flame retardant; reacting the pre-modified glass fiber with hydrazine hydrate to obtain modified glass fiber; the preparation method comprises the following steps: carrying out solution polymerization on ethyl acrylate, butyl acrylate, acryloxy propyl bis (trimethylsiloxy) methylsilane and glycidyl methacrylate to prepare acrylate raw rubber; the high-strength acrylate rubber material is prepared by uniformly mixing acrylate raw rubber, the modified glass fiber, a functional flame retardant and triphenyl phosphine, plastifying and thin-passing. The high-strength acrylate rubber material prepared by the invention has excellent flame-retardant, antibacterial, anti-aging and mechanical properties.

The invention discloses a raw rubber plastication device, and relates to the technical field of raw rubber plastication. The device comprises a bottom plate, the upper end face of the bottom plate is fixedly connected with a mounting structure, the upper end face of the mounting structure is fixedly connected with a crushing structure, the upper end face of the crushing structure is fixedly connected with a sealing structure, the upper portion of an inner cavity of the mounting structure is provided with a screening structure, and the front and rear end faces of the crushing structure are provided with gap adjusting structures. An adjusting driving structure is arranged on the side, away from the smashing structure, of the gap adjusting structure, lifting structures are fixedly connected to the four corners of the lower end face of an inner cavity of the mounting frame, a stirring driving structure is arranged in the middle of the lower end face of an inner cavity of the mounting structure, and a plastifying structure is placed on the upper end face of the stirring driving structure. In the using process, the gaps between the longitudinal screening rods are made to be the same through the sliding rods and the adjusting rods, and then the gaps between the longitudinal screening rods are adjusted through the center positioning rod and the adjusting rods under the action of the adjusting driving structure.

The invention provides methyl vinyl silicone rubber. The methyl vinyl silicone rubber is prepared from the following raw materials in parts by weight: 85 to 95 parts of methyl vinyl silicone rubber raw rubber, 27 to 35 parts of modified filler, 0.3 to 1.5 parts of vulcanizing agent, 0.5 to 1.5 parts of assistant crosslinking agent and 0.2 to 0.8 part of bulking agent, the modified filler is prepared from the following raw materials: chitosan, a filler and methacrylic acid, and the dosage ratio of the chitosan to the filler to the methacrylic acid is (25-35) g: 22g: (0.07-0.15) mol; the filler comprises hydroxyapatite and silicon dioxide. The invention also provides a preparation method of the methyl vinyl silicone rubber. The methyl vinyl silicone rubber provided by the invention has excellent tensile strength and damp-heat aging resistance.

The invention discloses a seam allowance wear-resistant rubber for a truck radial tire, and belongs to the field of tires. In order to solve the problem of low air tightness of the bead wear-resistant rubber in the prior art, the bead wear-resistant rubber is prepared from the following components: a raw rubber composition, a carbon black composition, stearic acid, zinc oxide, an anti-aging agent composition, protective wax, softening oil, a resin mixture, light magnesium oxide, insoluble sulfur, an accelerant mixture, a scorch retarder CTP and a hardening reinforcing agent. The process is simple and convenient to operate, the components and the process are optimized, so that the air tightness of the seam allowance rubber material is higher, the rubber material, the filler and the chemical material are dispersed more uniformly, the air tightness of the rubber material is improved, and the aging resistance is improved.

The invention discloses a preparation method and application of a desulfurized regenerated rubber grafted polar group material, which utilizes a large amount of free radicals generated by fracture of chemical bonds of a molecular chain of regenerated rubber in a high-temperature strong-shearing desulfurization process, and the polar group is grafted to the regenerated rubber in a specific time window after desulfurization. The free radicals which are not killed can react with glycidyl methacrylate, maleic anhydride or trimethyl ammonium chloride to be grafted to a regenerated rubber molecular chain, initiators such as peroxide do not need to be added, cross-linking side reaction is avoided in the grafting process, and therefore the processing performance of the material is kept. The grafted and desulfurized regenerated rubber can be used for improving the performance of a rubber / filler composite material, the prepared grafted and desulfurized regenerated rubber is added into a butadiene styrene rubber or natural rubber composite material filled with carbon black or white carbon black, the interaction between the rubber and filler is improved through the grafted regenerated rubber, and the mechanical property of the rubber composite material is improved.

The invention relates to a low-smoke flame-retardant ethylene propylene diene monomer composite material and a preparation method thereof, and belongs to the technical field of polymer composite materials. The composite material comprises the following components: 100 parts of raw ethylene propylene diene monomer rubber, 5-8 parts of a cycloolefin copolymer, 20-25 parts of a modified aluminum hydroxide-magnesium hydroxide flame retardant, 15-20 parts of a phosphorus-nitrogen intumescent flame retardant, 2-5 parts of a melamine modified graphene-layered bimetal hydroxide composite flame retardant and 3-10 parts of a vulcanization system, the vulcanization system comprises 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1-2 parts of an accelerant, 0.5-1.5 parts of sulfur and 1-5 parts of a processing aid. According to the invention, the raw rubber of the ethylene propylene diene monomer is compounded with a small amount of cycloolefin copolymer, so that the smoke formation tendency is reduced from the matrix level, and a ternary synergistic flame-retardant system consisting of the inorganic flame retardant, the phosphorus-nitrogen intumescent flame retardant and the nano composite flame retardant is matched, so that the composite material keeps good mechanical properties at the same time.

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.

A method of functionalising an elastomeric material, such as a rubber particle, is provided. The method comprises the functionalisation of an elastomeric material through the use of an ionic liquid based composition, which comprises a water soluble polymer, a cationic silicate component, and a salt of a vulcanization accelerator, together with a zinc compound, sulphur, and an accelerator. Rubber particles, for example particles from recycled rubber products, functionalised according to the method disclosed can successfully be utilised in virgin rubber masterbatches at concentrations not previously possible.

The invention belongs to the technical field of high polymer materials, and particularly relates to a sizing material composition and a preparation method and application of a rubber compound of the sizing material composition. The rubber composition provided by the invention is prepared from 90 to 110 parts of raw rubber, 3 to 5 parts of an adhesive AS-883, 5 to 8 parts of zinc oxide, 1 to 3 parts of stearic acid, 2 to 5.5 parts of an anti-aging agent, 25 to 35 parts of modified N330 carbon black, 10 to 15 parts of white carbon black, 1.5 to 3.5 parts of aromatic oil, 1.5 to 2.5 parts of a silane coupling agent, 2 to 4 parts of an anti-fatigue agent PL-600, 2 to 3 parts of insoluble sulfur and 2.5 to 5.5 parts of an accelerant. The rubber composition disclosed by the invention has high bonding strength with a composite cord thread and high bonding retention rate after aging, and also has the performance characteristics of high rebound value, good aging resistance and fatigue resistance, high tearing strength and tensile strength and low heat generation. The rubber composition disclosed by the invention is used as the tire body layer hanging rubber of the meridian aircraft tire, and the tire is safer to use.