261 results about "Microcrystalline wax" patented technology

The invention provides a universal light-cured resin preparation method, and relates to the technical field of light-cured resin preparation, and the method comprises the following steps: S1, preparation of microcrystalline wax-LMA; s2, preparing an acrylic resin matrix; s3, adding microcrystalline wax-LMA and other fillers into the acrylic resin matrix, and stirring and mixing; s4, then adding a diluent and other additives, and stirring and mixing; and S5, adding a compound photoinitiator, and stirring and mixing to obtain a finished product. Through the compound photoinitiator, the surface and the deep layer of the material are synchronously cured, and almost no curing stress exists, so that the material can be cured into a sheet layer without any buckling deformation in a sunken DLP (Digital Light Processing); and secondly, the microcrystalline wax-LMA forms a microphase separation structure in the material, so that the shrinkage and cracking of the material are greatly reduced, and the effects of improving the strength and the toughness can be achieved.

The invention provides a simulation material for a mechanical test of a press-fitting explosive, which is prepared from the following raw materials in parts by weight: 65.5% of ammonium sulfate, 27%-33% of aluminum powder, 1.5%-4% of microcrystalline wax, 1%-2% of butadiene rubber and 0.2%-0.8% of graphite. The compressive strength and the tensile strength of a grain formed by pressing the simulation material for the mechanical test of the pressed explosive are basically consistent with those of a grain formed by pressing a polyblack aluminin-2 (JHL-2) explosive, the change trend and the change limit of the strength in the mechanical test process can be truly reflected, and effective reference data are provided for mechanical property evaluation; relatively real and reasonable model parameters are provided for the digital design of the mechanical property of the press-fitting explosive; in an aging test, a tensile test, a mechanical compression test and a dynamic Brazilian test, the simulation material for the press-fitting explosive mechanical test can be prevented from being in contact with energetic explosive components, so that the safety of the test is improved, and the potential safety hazard is reduced.

The invention relates to the technical field of rubber material preparation, in particular to a tear-resistant heavy truck engine suspension rubber material and a preparation method thereof. The tear-resistant heavy truck engine suspension rubber material is prepared from the following raw materials in parts by weight: 75 to 90 parts of natural rubber, 15 to 25 parts of butadiene styrene rubber, 8 to 20 parts of reinforced fibers, 12 to 25 parts of carbon black, 3 to 8 parts of an activating agent, 1.5 to 4 parts of an anti-aging agent, 2 to 4 parts of microcrystalline wax, 1.5 to 3.5 parts of an accelerant, 1 to 3 parts of a tackifier, 1 to 3 parts of a dispersing agent, 0.5 to 1.5 parts of sulfur and 0.5 to 1.5 parts of a silane coupling agent. The rubber material provided by the invention has excellent tear resistance, is suitable for heavy trucks and other high-load environments, has good aging resistance, ensures the long service life of the material, and is simple and feasible in preparation method, low in cost and easy to realize large-scale production.

The invention discloses high-wear-resistance tread rubber for an off-the-road tire, and relates to the technical field of tires. According to the technical scheme, the rubber composition comprises the following components in parts by weight: 100 parts of a rubber component, 35-55 parts of carbon black, 4-6 parts of a wear-resistant agent DC-Z-B, 10-20 parts of white carbon black, 1-2 parts of a silane coupling agent, 1-2 parts of alkylphenol tackifying resin, 8-12 parts of a CR multifunctional composite reinforcing agent TDS, 3-5 parts of an anti-aging agent, 1-2 parts of microcrystalline wax, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1.5-2 parts of sulfur and 1.2-2.4 parts of an accelerant. The wear-resistant agent DC-Z-B and CR multifunctional composite reinforcing agent TDS are adopted, through interface optimization, dynamic performance complementation and thermal stability synergy, the wear resistance and tear resistance of the tread rubber can be further improved, and the comprehensive performance improvement of '1 + 1gt, 2' is achieved.

The invention relates to the technical field of new energy automobile air suspensions, and particularly discloses a heat-resistant ozone-resistant air spring outer layer rubber material. The rubber material is prepared from natural rubber, chlorosulfonated polyethylene rubber, ethylene-vinyl acetate rubber, high-activity magnesium oxide, stearic acid, an anti-aging agent, microcrystalline wax, tert-butylphenol formaldehyde resin, reinforcing filler, a plasticizer, zinc oxide, a vulcanizing agent and an accelerant. The invention also discloses a preparation method of the sizing material. The heat-resistant ozone-resistant air spring outer layer rubber material disclosed by the invention has good heat resistance, cold resistance and ozone aging resistance, and also has the advantages of wide application environment range and long service life.

The invention discloses modified precision casting wax as well as a preparation method and application thereof. The modified precision casting wax is prepared from the following raw materials and components in parts by mass: 17 to 25 parts of microcrystalline wax, 10 to 15 parts of paraffin, 5 to 10 parts of stearic acid, 2 to 4 parts of ethylene-vinyl acetate, 2 to 6 parts of lignite wax, 2 to 5 parts of Piccotex75 resin, 10 to 15 parts of terpene resin, 5 to 15 parts of D-mannitol, 5 to 15 parts of adipic acid, 8 to 15 parts of rosin glyceride, 1 to 3 parts of carnauba wax, 2 to 5 parts of candelilla wax, 1 to 3 parts of hydroxyethyl cellulose and 0 to 3 parts of starch. According to the modified precision casting wax disclosed by the invention, the performance of a wax mold is improved by compounding functional aids, so that the modified precision casting wax has high bending hardness and surface hardness, lower shrinkage rate and good dimensional stability, and can be widely applied to the field of high-precision casting.

The invention discloses a cold-resistant high-temperature-resistant hydraulic hose rubber material which comprises the following components in parts by mass: 65-75 parts of nitrile rubber, 5-15 parts of butadiene rubber, 5-10 parts of silicone rubber, 5-10 parts of ethylene propylene rubber, 5-10 parts of hydrogenated nitrile rubber, 10-15 parts of white carbon black VN3, 110-130 parts of carbon black N762, 5-8 parts of a plasticizer DOS, 5-8 parts of a plasticizer TP-90B, 3-5 parts of zinc oxide, 0.5-1.0 part of stearic acid, 1-2 parts of an anti-aging agent KY-405 and 1-2 parts of an anti-aging agent RD. The invention relates to an environment-friendly adhesive which is prepared from the following components in parts by weight: 0.5 to 1.0 part of microcrystalline wax Antilux 654, 3 to 5 parts of homogeneous resin 40MSF, 1.5 to 2.5 parts of sulfur, 1.0 to 1.5 parts of accelerant CZ, 1.5 to 2.5 parts of peroxide F40P-SP2, 0.5 to 1.0 part of assistant cross-linking agent SK8911D70 and 5 to 7 parts of Ricobond 1731HS. The material has excellent low-temperature bending property (less than or equal to-60 DEG C), hot oil resistance, thermal aging resistance and copper-plated steel wire bonding property, and is suitable for hydraulic hose manufacturing in an extreme environment.

The invention discloses a water-in-oil type moisturizing rod composition and a preparation method and application thereof, the water-in-oil type moisturizing rod composition comprises an oil phase and a water phase, the oil phase comprises wax, a suspending agent, grease, an emulsifier and a first functional active matter, and the wax comprises synthetic wax and selective pure ozocerite and / or microcrystalline wax; the emulsifying agent is prepared from lauryl PEG (Polyethylene Glycol)-8 polydimethylsiloxane and / or cetyl PEG / PPG-10 / 1 polydimethylsiloxane, a polydimethylsiloxane / polydimethylsiloxane PEG-10 / 15 cross-linked polymer and / or sorbitan sesquioleate; the water phase comprises alcohol, salt, a second functional active matter and water; the preparation method comprises the following steps: respectively preparing an oil phase and a water phase, adding the water phase into the oil phase, homogenizing, filling and forming. The novel moisturizing rod with the W / O dosage form has a refreshing skin feeling, is beneficial to skin health, and has good formability, good storage stability and satisfactory sensory characteristics.

The invention discloses a preparation method of a ceramic core plasticizer for high-temperature alloy investment casting, and relates to the technical field of plasticizers, and the preparation method comprises the following preparation steps: step 1, adding microcrystalline wax into modified chlorinated paraffin, heating, stirring and melting, adding a heat stabilizer, mixing, continuously stirring, heating for reaction, adding polyethylene wax, and continuously stirring; 2, after cooling, adding stearic acid, and continuously stirring; and 3, granulating and packaging to obtain the special plasticizer for the ceramic core. According to the preparation method of the ceramic core plasticizer for high-temperature alloy investment casting, polar groups such as hydroxyl groups and ester groups are introduced to a chlorinated paraffin molecular chain, strong interaction is formed between the polar groups and hydroxyl groups on the surface of ceramic powder, and a uniform wax coating layer is formed on the surface of powder particles.

The invention provides a fused cast explosive substitute material, a preparation method and application, and the fused cast explosive substitute material comprises the following raw material components in percentage by mass: 0-55% of microcrystalline wax, 0-55% of Fischer-Tropsch wax, 10-15% of light calcium carbonate, 1-4% of stearic acid, 20-44% of sodium sulfate and 8-20% of ammonium sulfate, and the sum of the mass percentages of all the components is 100%. And the mass sum of the microcrystalline wax and the Fischer-Tropsch wax accounts for 30-55% of the total mass of the fused cast explosive substitute. The preparation method comprises the following steps: adding the light calcium carbonate, the sodium sulfate and the ammonium sulfate according to the formula ratio into an acoustic resonance mixing container with the resonance frequency of 40-60Hz, melting and mixing for 10-30 minutes at the acceleration of 10-30g under the condition of 90-120 DEG C to obtain a uniformly dispersed mixed material, then adding the microcrystalline wax and / or the Fischer-Tropsch wax and the stearic acid according to the formula ratio into the mixed material, and uniformly mixing to obtain the product. Melting and mixing for 10 to 30 minutes at the acceleration of 30 to 50g, and then mixing for 10 to 30 minutes at the acceleration of 30 to 50g, so as to obtain the product. The test results of viscosity, density and melting point of a suspension prepared by melting and mixing the substitute provided by the invention are equivalent to the thermophysical properties of a real material formula.

The invention relates to high-melting-point rubber protective wax and a preparation method thereof. The problems of low melting point and poor high-temperature protection performance of the existing rubber protection wax are mainly solved. The wax is characterized by comprising the following components in percentage by mass: 10-25% of fully refined paraffin, 15-40% of semi-refined paraffin, 30-50% of microcrystalline wax, 0-20% of Fischer-Tropsch wax, 0.5-2.0% of polyethylene wax and 0.2-0.8% of an antioxidant. The preparation method comprises the following steps: preparing a mother solution from part of fully-refined paraffin, semi-refined paraffin and an additive in proportion, mixing and stirring, and transferring a sample into a blending kettle after the sample is uniformly molten; and adding the rest paraffin, microcrystalline wax and Fischer-Tropsch wax into a blending kettle according to the proportion, blending, stirring, sampling and analyzing to be qualified, cooling, filtering, and pumping into a granulator for granular forming. The high-melting-point rubber protection wax can play a long-term protection role in a wide temperature range, especially under a high-temperature condition, and effectively prevents rubber products from aging and cracking due to weather influence.

The invention provides high-thermal-insulation wear-resistant rubber and a preparation method thereof. Comprising the following steps: taking raw nitrile rubber, carrying out open milling, adding zinc oxide, stearic acid, microcrystalline wax and an anti-aging agent, and carrying out mixed open milling; adding the thermal-insulation wear-resistant filler into the open milling system, and uniformly mixing; adding an accelerant TMTD and sulfur, carrying out triangular package making for multiple cycles, carrying out thin-passing to obtain sheets, and standing to obtain a rubber compound; and putting the rubber compound into a plate mold, and vulcanizing by using a plate vulcanizing machine. A multi-layer heat insulation structure is formed by adopting the heat preservation and wear-resisting filler compounded by the hydrophobic porous aluminum oxide hollow spheres and the dendritic silicon dioxide, the hydrophobic porous aluminum oxide hollow spheres can effectively prevent heat conduction due to a hollow air filling structure, the heat conductivity is very low, and meanwhile the heat preservation and wear-resisting properties of the hydrophobic porous aluminum oxide hollow spheres are greatly improved due to the hydrophobic characteristic of the hydrophobic porous aluminum oxide hollow spheres. The low-thermal-conductivity ceramic is free from the influence of moisture and keeps stable low thermal conductivity, and the dendritic silicon dioxide can be used as a skeleton support and keeps the stability and durability of the whole low-thermal-conductivity ceramic.

The invention relates to the technical field of composite material engineering, and discloses a method for manufacturing a foam female die of an airplane model, which comprises the following steps: firstly, carrying out gradient grinding on the inner surface of the foam female die; filling the polished foam female die with an epoxy material and a putty material, and polishing again; the polished foam female die filled with the epoxy material and the putty material is coated with a microcrystalline wax sealing layer, and a solvent type release agent is sprayed; and carrying out a wet lamination process on the foam female die filled with the epoxy material and the putty material. A traditional mold is replaced with the corrodible modified foam female mold, so that the single-piece mold manufacturing cost is reduced, the period is shortened, the complex machining process of the traditional mold is not needed, the material cost is low, the manufacturing steps are simple and convenient, manpower and time investment is greatly reduced, the method is particularly suitable for small-batch customized production, and economic benefits are improved.

The invention discloses a rubber sealing material suitable for a gas pipeline and a preparation method of the rubber sealing material, and belongs to the technical field of rubber materials. The rubber sealing material is prepared from the following raw materials in parts by weight: 75 to 90 parts of modified nitrile rubber, 5 to 10 parts of carboxyl-terminated nitrile rubber, 5 to 20 parts of hydrogenated nitrile rubber, 40 to 80 parts of carbon black, 15 to 35 parts of silica powder, 15 to 28 parts of a plasticizer, 4.5 to 5 parts of zinc oxide, 0.8 to 1.2 parts of stearic acid, 1.2 to 2 parts of microcrystalline wax, 3.5 to 4 parts of an anti-aging agent, 2.5 to 3.5 parts of peroxide, 0.2 to 0.5 part of sulfur, 1.2 to 2.5 parts of an assistant vulcanizing agent and 0.6 to 2 parts of an accelerant. The modified nitrile rubber is prepared by grafting silane containing sulfydryl and amino bifunctional groups on nitrile rubber through sulfydryl-double bond click reaction. The rubber sealing material provided by the invention is high in low-temperature resistance, low in compression set value and good in dimensional stability.

This utility model discloses a continuous deoiling device for microcrystalline wax, including a sealed wax melting tank and a deoiling device. The sealed wax melting tank transports the mixture to the inside of a spiral plate heat exchanger via a variable frequency pump. The spiral plate heat exchanger is connected to a high and low temperature integrated machine, which can circulate and cool the coolant flowing inside the spiral plate heat exchanger. The spiral plate heat exchanger transports the crystallized mixture to the inside of a centrifuge. The centrifuge separates the crystallized wax from the filtrate through centrifugal action, and the separated filtrate enters the sealed filtrate tank for recycling. This utility model can achieve continuous deoiling of microcrystalline wax through the synergistic effect of components such as the sealed wax melting tank, variable frequency pump, spiral plate heat exchanger, and centrifuge. At the same time, the curved structure in the channel of the spiral plate heat exchanger forces the fluid to form a strong spiral flow. The high flow velocity and turbulence can scour the wall surface and prevent wax crystals or impurities from depositing.

The invention discloses ointment for preventing infantile hand-foot-and-mouth disease and a preparation method thereof. The ointment is prepared from coptis chinensis, sweet wormwood, honeysuckle, radix sophorae flavescentis, lithospermum, sanguisorba officinalis, radix isatidis, menthol, clove oil, vitamin A oil, vitamin E oil, roxburgh rose seed oil, olive oil, chamomile extract, honey and microcrystalline wax. On the basis of combination of traditional Chinese medicines and western medicines, traditional Chinese medicine components such as coptis chinensis, artemisia apiacea and honeysuckle and western medicine components such as vitamin A and vitamin E are combined, and the ointment for preventing the infantile hand-foot-and-mouth disease is prepared. The components have the effects of clearing away heat and toxic materials, resisting viruses, bacteria and inflammation and the like, and are beneficial to enhancing the immunity of the organism, inhibiting virus diffusion and relieving disease symptoms, so that the occurrence of the infantile hand-foot-and-mouth disease is effectively prevented.

This invention proposes a simulation material for mechanical testing of press-loaded explosives, which, by weight, is made from the following raw materials: 65.5% ammonium sulfate, 27%–33% aluminum powder, 1.5%–4% microcrystalline wax, 1%–2% butadiene rubber, and 0.2%–0.8% graphite. The compressive and tensile strengths of the explosive charge formed by this simulation material are essentially consistent with those of the charge charge formed from polyaluminum black-2 (JHL-2) explosive. It can realistically reflect the trend and limit of strength changes during mechanical testing, and provides effective reference data for mechanical performance evaluation. It also provides relatively realistic and reasonable model parameters for the digital design of the mechanical properties of press-loaded explosives. In aging tests, tensile tests, mechanical compression tests, and dynamic Brazilian tests, using this simulation material avoids contact with energetic explosive components, increasing test safety and reducing safety hazards.

The invention relates to a cold-resistant and high-slip-resistance sneaker sole rubber material and a preparation method thereof. The rubber material is prepared from the following raw materials in parts by weight: 40-60 parts of butadiene rubber, 10-30 parts of isoprene rubber, 30-50 parts of brominated butyl rubber, 2-5 parts of polyethylene glycol, 0.5-1.5 parts of stearic acid, 4-6 parts of zinc oxide, 2-4 parts of a homogenizing agent, 0.5-1.5 parts of an active agent, 1-3 parts of an anti-aging agent, 1.5-2.2 parts of a vulcanizing agent, 1.2-2 parts of an accelerant, 40-65 parts of white carbon black, 4-8 parts of softening oil, 0.5-1 part of microcrystalline wax, 4-8 parts of a tackifier and 2-5 parts of a wear-resistant agent. Compared with the existing product, the sneaker sole rubber material disclosed by the invention has the advantages that the non-slip performance and the cold resistance are greatly improved, the non-slip performance and the cold resistance (namely, the capability of maintaining various performances in a low-temperature environment) are very excellent, and meanwhile, the sneaker sole rubber material also has good shock absorption performance and wear resistance.

The application belongs to the technical field of precision casting, and particularly relates to a high-viscosity and high-strength precision casting adhesive wax and a preparation method thereof. The adhesive wax comprises the following components: 30-40 parts of paraffin wax, 16-24 parts of microcrystalline wax, 25-30 parts of petroleum resin, 8-14 parts of rosin resin, 5-10 parts of EVA, 2-5 parts of LDPE and 0.1-2 parts of additives; wherein the LDPE is composed of two kinds of LDPE with different melt indexes. By introducing the petroleum resin, rosin resin, ethylene-vinyl acetate copolymer (EVA) and low-density polyethylene (LDPE) into the paraffin wax and microcrystalline wax base system, and controlling the proportion between the resin system and the polyolefin reinforcing system, the adhesive wax has high viscosity and hardness at 100 DEG C, and the bending strength is improved. Thus, the comprehensive performance of the adhesive wax is achieved, i.e., the adhesive wax is not easy to sag at high temperature, is not easy to be pressed at room temperature, and is not easy to crack under stress.

Provided is a composition comprising a hydrophobic compound (A) that comprises a hydrophobic compound (A1) and a hydrophobic compound (A2) which differs from the hydrophobic compound (A1), wherein the hydrophobic compound (A1) is a compound selected from the group consisting of modified amine, modified polycarboxylic acid, paraffin wax, and microcrystalline wax, and the hydrophobic compound (A2) is a liquid or solid oil that is not a compound selected from the group consisting of modified amine, modified polycarboxylic acid, paraffin wax, and microcrystalline wax. Thus, provided is a novel composition that makes it possible to impart liquid repellency to a base material.

The present application relates to the technical field of rubber processing aids, and particularly relates to a dispersant for rubber, a preparation method and application thereof.The dispersant for rubber comprises the following raw materials in parts by weight: 20-30 parts of stearic acid, 5-10 parts of microcrystalline wax, 1-5 parts of monoglyceride fatty acid ester, 2-7 parts of dispersing aid, and 1-5 parts of modified sodium lignosulfonate.The dispersant for rubber can improve the wetting and coating capacity of fillers, reduce the Mooney viscosity of rubber compounds, and improve the flowability of mixing and processing.In addition, the dispersant for rubber can improve the dispersion uniformity of fillers in the rubber system, and improve the interfacial bonding strength between fillers and rubber.Meanwhile, the dispersant for rubber can effectively avoid the migration and blooming of small molecule additives, and improve the appearance stability of rubber products.

The invention relates to the technical field of waxy materials, and particularly discloses light touch melting wax as well as a preparation method and application thereof, the light touch melting wax comprises the following components: 30-50 parts of ozokerite, 10-50 parts of microcrystalline wax, 3-7 parts of light microspheres, 6-12 parts of vegetable fat wax and 1-3 parts of a regulator; the touch melting wax prepared by the preparation method disclosed by the invention is light in texture, has temperature-responsive touch melting characteristic and oil locking capability, improves the wrapping and fixing capability of the wax on oily components by optimizing the crystal structure of the wax and introducing oil locking auxiliary components, is high in stability, can still keep stable oil locking performance in the storage process, and avoids oil migration and layering; the air permeability is improved by a network structure formed by dispersing introduced light microspheres, the melting temperature is close to the temperature of human skin, the melting time is less than 10s by adding the light microspheres and the regulator and optimizing the composition proportion of the microcrystalline wax and other raw materials, the product is quickly softened but does not flow when being touched, and a formed film layer is compact and has strong oil locking capacity.

The invention relates to a sealing ring material and a preparation method and application thereof, and belongs to the technical field of diaphragm pump components. The sealing ring material comprises the following components in parts by weight: 100 parts of a rubber matrix; 5 to 10 parts of boron nitride nanosheets; 5 to 10 parts of graphene oxide; 4-8 parts of microcrystalline wax; 3-6 parts of sulfur; 2-4 parts of sodium stearate; 1-4 parts of a vulcanization accelerator; 1-3 parts of zinc oxide; 4-8 parts of an anti-aging agent; the rubber matrix comprises nitrile rubber, chloroprene rubber and isoprene rubber, and the nitrile rubber accounts for 60-80 wt% of the total amount of the rubber. The sealing ring material provided by the invention has relatively good high temperature resistance, is not easy to soften and deform, also has relatively good air tightness and permeation resistance, and has obvious performance advantages when being used as a sealing ring for a diaphragm pump.

The invention discloses a temperature-sensitive hot compress composition based on vegetable wax-traditional Chinese medicine compounding and a preparation method of the temperature-sensitive hot compress composition, and relates to the technical field of thermal therapy materials. The temperature-sensitive hot compress composition based on vegetable wax-traditional Chinese medicine compounding comprises the following components in parts by weight: 25-40 parts of paraffin, 10-18 parts of microcrystalline wax, 15-25 parts of a soft wax compound, 8-15 parts of mineral oil, 5-12 parts of vegetable compound oil, 10-18 parts of a traditional Chinese medicine active system and 0.3-1.5 parts of a natural preservative. The invention further provides a preparation method of the vegetable wax-traditional Chinese medicine compounded temperature-sensitive hot compress composition. The multi-stage phase change temperature zone is constructed, normal-temperature efficient loading of the traditional Chinese medicine is achieved, oxidation and deterioration of the vegetable oil are inhibited, and the problems of traditional Chinese medicine inactivation and vegetable oil oxidation caused by high-temperature preparation of traditional hot compress materials are effectively solved.

The invention belongs to the field of cosmetics, and discloses a hip cream, which comprises the following components by weight: 44-57.5% of petrolatum; 35%-45% of light polar synthetic grease; 3-8% of wool fat; 2 to 5 percent of trihydroxy stearin; 1-5% of microcrystalline wax; 1-3% of oil absorption powder; and 0.5-2% of white beeswax. According to the diaper rash cream disclosed by the invention, petrolatum is taken as a main component, light polar synthetic grease, wool fat, trihydroxy stearin, microcrystalline wax and cera alba are taken as auxiliary components, and the six components are matched, so that the forming capability of an isolating layer and the hardness support during temperature change are remarkably improved, and a better urine isolating effect is realized. Meanwhile, the invention further provides a preparation method of the hip cream.

The invention discloses a mould-resistant halogen-free low-smoke flame-retardant rubber sheath material and a preparation method thereof. The sheath material comprises the following components: 40-60 parts of EVM, 40-60 parts of EVA, 2-10 parts of POE, 20-50 parts of calcium carbonate, 30-60 parts of aluminum hydroxide, 15-30 parts of zinc borate, 5-20 parts of polyether amine modified polystyrene maleic anhydride, 2-10 parts of fire extinguishing capsule powder, 2-10 parts of a mildew inhibitor, 1-10 parts of white carbon black, 1-10 parts of microcrystalline wax, 1-6 parts of an anti-aging agent, 1-5 parts of wear-resistant carbon black, 1-5 parts of a release agent, 0.5-3 parts of a coupling agent, 0.1-2 parts of sulfur and 1-10 parts of an accelerant. The EVA and the EVM are compounded, and the EVM release agent, the polyether amine modified polystyrene maleic anhydride, the fire extinguishing capsule powder and the like are matched, so that the rubber sheath material has excellent tensile property, oil resistance, mold resistance, flame retardance, aging resistance, low temperature resistance and the like.

The invention discloses mine tire sidewall rubber and a preparation method thereof, and relates to the technical field of tires. According to the technical scheme, the rubber comprises the following components in parts by weight: 100 parts of a rubber matrix, 40-55 parts of carbon black, 8-15 parts of basic aluminum sulfate, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 3-6 parts of a composite anti-aging agent, 1-2 parts of microcrystalline wax, 3-5 parts of tackifying resin, 1.8-2.2 parts of sulfur and 1.3-2.1 parts of an accelerant, the composite anti-aging agent is prepared from an anti-aging agent BXA, an anti-aging agent 3100 and an anti-aging agent 4020 according to the weight ratio of (1 to 2): (0.5 to 1.5): (1 to 1.5). According to the invention, the original ternary composite anti-aging agent is matched with the basic aluminum sulfate, so that the technical problem that high flex resistance and high tear resistance of traditional sidewall rubber are difficult to consider under mine working conditions is solved on the premise of not sacrificing processability and elasticity.

The invention discloses a rubber processing aid composition and a preparation method thereof, and belongs to the technical field of rubber processing, the rubber processing aid composition comprises the following raw materials by weight: 100 parts of a rubber matrix, 20-30 parts of ionic liquid grafted hyperbranched polyester, 6-7 parts of a multifunctional anti-aging agent, 2-4 parts of polyethylene wax, and 6-7 parts of microcrystalline wax; the multifunctional anti-aging agent is prepared from selenocystamine hydrochloride and allyl isothiocyanate through a reaction, the ionic liquid grafted hyperbranched polyester is 1-carboxymethyl-3-vinyl imidazole chlorine salt grafted hydroxyl-terminated hyperbranched polyester, and the rubber processing aid composition is applied to the rubber material processing process. According to the present invention, the rubber softening agent has characteristics of good rubber softening effect and good migration precipitation resistance, can effectively improve the dispersion effect of the carbon black or white carbon black and other reinforcing filler in the rubber matrix, can promote the vulcanization process, can easily obtain the high-performance rubber material, and further has good protection effect on the thermo-oxidative aging of the rubber material.

The invention discloses a waterproof UV (ultraviolet) curing coating and a preparation method thereof, trimethylolpropane triacrylate is used as a reactive diluent, 2-hydroxy-2-methyl-1-phenylacetone is used as a photoinitiator, polyurethane acrylate and modified filler are polymerized in the UV curing process of the coating, and a highly crosslinked waterproof UV curing coating is prepared. A perfluorocarbon chain structure and a hydrogen bond network are introduced into a polyurethane acrylate molecular chain, a molecular-level smooth super-hydrophobic layer is formed on the surface of the coating, and permeation of water molecules can be effectively blocked. The modified filler taking microcrystalline wax as a core and silicon dioxide as a shell is added, so that the wear resistance and scratch resistance of the coating can be remarkably improved, and meanwhile, the micro rough structure and the coating with low surface energy cooperatively construct a super-hydrophobic structure, so that the waterproof performance of the UV curing coating is improved.

The application belongs to the technical field of rubber tires, and discloses application of SiO2 / C composite material in a low-heat-generation tire tread.The low-heat-generation tire tread comprises the following raw materials in parts by mass: 100 parts of rubber, 0-50 parts of filler, 10-60 parts of SiO2 / C composite material, 3-8 parts of activator, 2-4 parts of vulcanizing agent, 2-5 parts of antioxidant, 0.5-1.5 parts of microcrystalline wax and 1-3 parts of silane coupling agent.In the application, the biobased SiO2 / C composite material can effectively replace carbon black and white carbon black in the tire preparation process, and the prepared tire has low heat generation.