975 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 process sizing material pretreatment scheme and a control device thereof, and relates to the field of sizing material heating pretreatment, and the process sizing material pretreatment scheme comprises the following steps: uniformly mixing to-be-treated sizing material raw materials according to a certain proportion to ensure the uniformity of the raw materials; the preparation method comprises the following steps: mixing various raw materials in an open mill, and heating and shearing to enable a rubber material to reach a certain plasticized state; the sizing material runs along the feeding conveying belt, and then the temperature of the sizing material is effectively adjusted through the control device; in the preparation process of the rubber material, the rubber material is monitored and adjusted in real time through a quality detection instrument and method, and after preparation is completed, the rubber material is used for subsequent forming and vulcanization procedures. A process sizing material pretreatment control device is arranged. Therefore, the problems that in the prior art, the quality stability of products and the process operation control of subsequent procedures are affected due to the fact that the quality problem exists in half-part extrusion caused by poor thermal plastication of an open mill on raw sheet rubber in production are effectively solved.

The invention discloses a perfluoroether raw rubber emulsion as well as a preparation method and application thereof, and particularly provides a preparation method of the perfluoroether raw rubber emulsion, which is characterized by comprising the following steps: (1) in the presence of a water medium, an initiator, an emulsifier and a chain transfer agent, carrying out emulsion polymerization reaction on an initial mixed monomer; (2) continuously supplementing the first-stage mixed monomer into a polymerization reaction system until the total yield of the polymerization reaction is 25-67% of the final yield; the percentage of the final yield is mass percentage; and (3) continuously supplementing the second-stage mixed monomer into the polymerization reaction system until the polymerization reaction accumulates to obtain a final product. Perfluoroether raw rubber further prepared from the perfluoroether raw rubber emulsion prepared by the preparation method has one or more advantages as follows: the perfluoroether raw rubber emulsion is resistant to high temperature, small in permanent compression deformation and good in processability, and rubber obtained after vulcanization of the perfluoroether raw rubber has better performance parameters.

The invention discloses a silicone rubber foam material and a preparation method thereof. The silicone rubber foam material is prepared by mixing a component A and a component B in equal mass. The base rubber of the silicone rubber foam material takes vinyl hydroxyl silicone oil as a main body, 110 raw rubber is compounded and added, the mechanical property of silicone rubber foam can be effectively improved, the dispersity of the base rubber in a rubber material can be improved by adding modified aluminum hydroxide powder, the embrittlement degree of the material is reduced, and the flame retardant rating can reach V0; therefore, the material has a good application prospect in new energy battery materials.

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 provides a preparation method of high oil-filled liquid regenerated rubber, and belongs to the field of regenerated rubber manufacturing. The method comprises the following steps: mixing and preheating waste rubber powder and a part of softener; feeding the mixed and preheated raw materials into a double-screw or multi-screw extruder for heating and primary decrosslinking; feeding the raw materials subjected to primary de-crosslinking into a parallel co-rotating twin-screw extruder, adding the rest softening agent for multiple times through a plurality of feeding holes in a machine barrel, and extruding to obtain the high oil-filled liquid regenerated rubber. Compared with traditional regenerated rubber, the processing performance is better, the surface of a product is smoother, the production process is low-carbon and environment-friendly, and the additional value of resource utilization of waste rubber is greatly improved.

The invention relates to the technical field of cables, in particular to a fire-resistant cable suitable for a fire environment heating condition and a preparation method of the fire-resistant cable. The fire-resistant cable comprises an insulating wire core, a fire insulation layer and a sheath layer which are arranged from inside to outside. The fire insulation layer is made of ceramic silica gel cement; the ceramic silica gel cement is prepared from the following components in parts by weight: 20-40 parts of ceramic silica gel, 100-120 parts of methyl vinyl silicone rubber raw rubber, 30-50 parts of white carbon black, 4-6 parts of glass powder, 30-40 parts of aluminum oxide, 20-30 parts of zinc borate, 1-3 parts of zinc oxide, 30-40 parts of mica powder, 7-10 parts of dimethyl silicone oil and 0.3-0.5 part of a platinum catalyst. According to the invention, the mechanical strength and flexibility of the cable at high temperature are improved, and the high temperature resistance and electrical insulation performance of the fire insulation layer and the insulating layer are enhanced.

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 tire rubber manufacturing, and discloses a lunar vehicle tire tread rubber composition, a mixing method thereof and a tire. The rubber composition is prepared by mixing the following raw materials based on 100 parts by weight of raw rubber: 25-75 parts by weight of silicone rubber, 10-45 parts by weight of fluororubber, 15-30 parts by weight of ethylene propylene diene monomer, 30-50 parts by weight of carbon black, 2-8 parts by weight of an active agent and 2-4 parts by weight of an anti-aging agent. The tread rubber composition has excellent weather resistance and high and low temperature resistance, can obviously improve the high and low temperature resistance, and ensures that the tread of the lunar rover tire does not generate large deformation quantity at low temperature (as low as-100 DEG C) and high temperature (as high as 140 DEG C).

The present invention discloses a fluorosilicone rubber, a fluorosilicone rubber hose and a preparation method and application thereof. The fluorosilicone rubber is prepared from the following components calculated by weight: 50 to 70 parts of fluorosilicone raw rubber; 20 to 45 parts of high temperature flame retardant silicone rubber; 30 to 40 parts of fumed silica; 0.5 to 2 parts of diisopropylbenzene peroxide; 5 to 10 parts of hydroxy silicone oil; 1 to 3 parts of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane. The fluorosilicone rubber hose of the present invention has good elasticity and flexibility, convenient installation and layout, convenient maintenance, good vibration-proof effect and high reliability. The bonding strength between the hose and the silicone is good, the fatigue resistance of the hose is excellent, the raw materials of the product are easy to obtain, the cost is low, and it is conducive to large-scale production and improving market competitiveness. The combination of fluorosilicone rubber and high temperature resistant silicone saves the cost of raw materials, and can also achieve the characteristics of high temperature resistance, weather resistance, aging resistance and flame retardancy, and at the same time has a breakthrough development in technology.

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 provides silicone rubber for a composite insulator and a preparation method of the silicone rubber for the composite insulator. The silicone rubber composition is prepared from the following raw materials in parts by weight: 20 to 80 parts of first methyl vinyl silicone rubber raw rubber, 10 to 50 parts of second methyl vinyl silicone rubber raw rubber, 20 to 60 parts of white carbon black, 1 to 15 parts of hydroxyl silicone oil, 80 to 120 parts of aluminum hydroxide, 1 to 10 parts of P-N-Si tracking-resistant auxiliary agent, 0.1 to 2.2 parts of first silane coupling agent, 1 to 4 parts of dimethyl silicone oil and 0.01 to 1 part of release agent. The preparation raw materials of the P-N-Si tracking resistant auxiliary agent comprise a second silane coupling agent, phytic acid and melamine, the aluminum hydroxide is silane modified aluminum hydroxide, and the particle size D50 of the aluminum hydroxide is 1-5 [mu] m. Through cooperation of the P-N-Si anti-tracking auxiliary agent and the silane modified aluminum hydroxide, the filling amount of the aluminum hydroxide can be reduced while the anti-tracking performance of the composite insulator silicon rubber is improved, and the problems of processability and poor mechanical performance are effectively solved.

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 belongs to the field of mineral metallurgy, and particularly relates to a method for treating easily-argillization wrapped uranium-containing raw rubber sulfur-molybdenum ore, which comprises the following steps: carrying out coarse crushing and fine crushing on the easily-argillization wrapped uranium-containing raw rubber sulfur-molybdenum ore, then carrying out first-stage grading to obtain first-stage fine silt and a first-stage material, carrying out coarse grinding treatment on the first-stage material, and then carrying out second-stage grading to obtain second-stage fine silt; performing fine grinding treatment on the second-section material to obtain a fine grinding material; the first-stage fine silt, the second-stage fine silt and the fine grinding material obtained in the step (1) are placed in alkali liquor, pressurization and positive-pressure alkaline leaching treatment are conducted by adopting an oxygen-containing atmosphere, the alkali liquor is an aqueous solution of alkali metal element hydroxide, the pH value of the positive-pressure alkaline leaching stage is controlled to be 10 or above, then solid-liquid separation is conducted, and molybdenum-rich leaching liquor and uranium-rich leaching residues are obtained; and the uranium-rich leaching residues obtained in the step (2) are subjected to acid leaching treatment, and uranium-rich leaching liquid is obtained. According to the method, efficient extraction of molybdenum and uranium can be achieved, and in addition, high-selectivity separation of molybdenum and uranium can be synchronously achieved.

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.

The invention provides a low-hardness solid silicone rubber composition and a preparation method thereof. The low-hardness solid silicone rubber composition comprises the following raw materials in parts by weight: 93-100 parts of methyl vinyl silicone rubber raw rubber, 30-40 parts of white carbon black, 3.3-5.5 parts of a structured control agent, 4-6.5 parts of vinyl-terminated silicone oil, 1-2 parts of a diluent, 0.05-0.2 part of an internal release agent and 0.1-0.3 part of deionized water. The composition provided by the invention improves the processability of later open milling and extrusion molding, increases the smoothness before and after vulcanization, is not easy to separate out and remain, is not easy to migrate after being prepared into a finished product rubber compound, and accords with related food-grade certification. According to the preparation method, the surface glossiness of the rubber material is further improved, and the extrusion molding smoothness of the silicone rubber is 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 discloses a high-strength tungsten-boron silicone rubber radiation shielding material, which is prepared from the following ingredients in parts by weight: 100 parts of methyl vinyl silicone rubber raw rubber, 30 to 50 parts of white carbon black, 90 to 240 parts of tungsten oxide coated boron carbide heterostructure particles, 4 to 10 parts of hydroxyl silicone oil and 1 to 2.5 parts of 2, 5-dimethyl-2, 5-bis-(tert-butylperoxy) hexane. The preparation method comprises the following steps: 1, surface modification of tungsten oxide particles; 2, boron carbide surface modification; 3, grafting the surfaces of the two; and 4, mixing and vulcanizing the raw materials. White carbon black and tungsten oxide coated boron carbide heterostructure particles are introduced into the material, so that the dispersity of tungsten oxide particles in a silicon rubber matrix is improved, the interface interaction between boron carbide and the silicon rubber matrix is enhanced, the high strength of the material is ensured, and the material has excellent mechanical strength and neutron / gamma ray comprehensive shielding performance; the method is easy for mass production and can be used in the field of radiation protection.

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 utility model provides a screw conveyer for processing regenerated rubber, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The spiral conveyor for regenerated rubber processing comprises a rack and further comprises a conveying box, a driving part, a conveying screw and a discharging pipe, the interior of the conveying box is a cavity, the upper portion of the conveying box is open, the bottom of the conveying box is fixedly connected to the rack, the conveying box is obliquely arranged, and the conveying screw is axially fixed in the conveying box and can rotate in the circumferential direction; the conveying screw is parallel to the bottom of the conveying box, the driving part is fixedly connected into the conveying box and connected with the conveying screw, a through discharging port is formed in the bottom of a box body at the highest position of the conveying box, and the discharging pipe is fixedly connected to the bottom of the conveying box and communicated with the discharging port. The screw conveyor for processing the regenerated rubber is high in stability.

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 utility model provides a rubber raw rubber plastication device which comprises a rack, a main roller, an auxiliary roller and a driving mechanism used for driving the main roller and the auxiliary roller to synchronously rotate in different directions, the driving mechanism is installed on the rack and connected with the main roller and the auxiliary roller respectively, and a material taking mechanism is arranged at the bottom of the rack and connected with the main roller and the auxiliary roller. The material taking mechanism comprises a sliding rail, a collecting box, a driving gear and a power part, the sliding rail is fixedly installed at the bottom of the rack, the collecting box is slidably installed in the sliding rail and located between the main roller and the auxiliary roller, one side of the collecting box extends outwards to form a fixing plate, and a tooth groove matched with gear teeth on the edge of the driving gear is formed in the bottom of the fixing plate; the power part is installed on the outer side of the rack, the output end of the power part is fixedly connected with the driving gear, the driving gear is meshed with the bottom of the fixing plate, the power part is started to drive the driving gear to rotate, the fixing plate drives the collecting box to move in the sliding rail, interference of manual collection is reduced, the safety of the equipment is improved, and danger caused by manual collection is prevented.