Nanotechnology-Enhanced Rubber for Tire Manufacturing

High-load tire tread rubber composition that improves electrical conductivity of truck and bus tires using silica as the main reinforcing agent. The composition contains a carbon nanotube masterbatch and optimized amounts of silica, zinc oxide, stearic acid, vulcanizing agent, and accelerator. The carbon nanotubes enhance electrical conductivity while the silica provides the necessary reinforcement. The composition has electrical conductivity of 100 MΩ or less, allowing static electricity dissipation from tires.

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A tread rubber composition and preparation method for tires with improved electrical conductivity, low rolling resistance, and wet grip. The composition contains specific amounts of conventional carbon black, white carbon black, silane coupling agent, and protective wax. The preparation method involves mixing the components in a specific order to improve dispersion of the carbon nanotubes.

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Tire tread rubber composition for improved wet road performance, snowy road performance, and abrasion resistance in tires, especially for electric vehicles with heavy loads. The composition uses surface-modified nanocellulose crystals with isocyanate groups as a reinforcing agent instead of traditional carbon black. The nanocellulose crystals improve dispersibility by surface modification with isocyanate. The isocyanate-modified nanocellulose provides better wet grip, snow traction, and wear resistance compared to unmodified nanocellulose.

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Rubber composition for tire sidewalls that reduces heat generation and improves electrical conductivity without negatively impacting other tire properties. The composition contains natural rubber, polybutadiene rubber, carbon black, zinc oxide, stearic acid, antioxidants, wax, resin, oil, sulfur, and modified carbon nanotubes. The modified carbon nanotubes are made by oxidizing and coupling multi-walled carbon nanotubes. This provides lower heat generation compared to regular carbon nanotubes while maintaining electrical conductivity.

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Preparation method to improve dispersion of high-dispersion anti-aging nano filler for tires. The method involves modifying graphene and TiO2 nanoparticles separately, then mixing them in a ball mill to obtain a nano filler with improved dispersion in rubber compounds. This improves tire performance by preventing aging and cracking when exposed to UV radiation during use. The modified graphene and TiO2 nanoparticles have synergistic effects that enhance dispersion when combined.

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Rubber compositions containing nanoparticle fillers made of multiple layers of graphene distributed throughout the rubber matrix. The graphene nanoparticles are initially incorporated into a masterbatch with a non-rubber matrix like plasticizer resins. This allows easier handling and dispersal of the nanoparticles compared to using them directly in the rubber compound. The masterbatch is then added to the main rubber mixture to distribute the nanoparticles throughout the rubber composition. This provides improved physical properties like dynamic shear modulus and glass transition temperature when the rubber is cured. The nanoparticle graphene flakes have sizes between 0.1-1 micron and stack heights between 1-3 layers.

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A composition for tire treads with improved braking and wear performance while maintaining fuel efficiency. The composition contains rubber, silica, and cellulose nanofibers. The cellulose nanofibers can be either unmodified CNF or modified mCNF. Adding these nanofibers to the tire tread improves the braking and wear properties without sacrificing fuel efficiency compared to traditional tire tread compositions.

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Low rolling resistance and high wet slip resistance polystyrene-butadiene rubber composite material for tires. The composite material is prepared by in-situ modification of nano-silica with a terminal siloxane-based liquid fluororubber and a silane coupling agent. This improves dispersion of the nano-silica in the rubber matrix. The modified nano-silica enhances the rolling resistance and wet slip resistance compared to unmodified nano-silica. The modification involves hydrolyzing the silanol groups on the nano-silica surface with the terminal siloxane groups from the liquid fluororubber and the silane coupling agent.

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High wear-resistant green tire tread rubber composition with improved dispersion and wear resistance. It uses a unique surface modification and grafting process for nano-silica filler. The nano-silica is treated with phthalic acid diester to anchor the surface, then grafted with polystyrene using an organic dibasic acid. This forms a hard shell with high connection strength and barrier properties to isolate the nano-silica. The modified nano-silica is mixed with solution-polymerized styrene-butadiene rubber to prepare the high wear-resistant green tire tread rubber composition.

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Rubber composition for tire treads that improves braking performance without sacrificing wear and fuel efficiency. The composition uses modified carbon nanotubes, silane, natural rubber, and a dispersant. The nanotubes are dispersed in a solidified masterbatch form instead of using a dissolving agent. This improves dispersion and bonding between the nanotubes and rubber compared to conventional nanotube addition methods. The modified nanotubes, natural rubber, and silane provide improved braking. The dispersant helps disperse the nanotubes in the rubber matrix. This composition provides better braking without degrading wear and fuel efficiency compared to adding nanotubes directly to the rubber.

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Un-modified fuller’s earth nanoclay and carbon black reinforced elastomeric nanocomposite that gives excellent wet grip and superior processing characteristics for the tire tread. The composite is reinforced with dual filler composition, which comprises un-modified fuller’s earth nanoclay and primary filler as carbon black, in a tread portion.

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Rubber composition for tire treads that contains modified carbon nanotubes to improve wear resistance and tensile properties. The carbon nanotubes are surface-treated to disperse better in the rubber matrix and avoid agglomeration. The modified carbon nanotubes have specific length (10-15 μm) and bulk density (1-2 g/cm³) ranges to optimize dispersion without degrading rubber compound properties.

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Tire used for a vehicle or the like that improves the rolling resistance performance and resistance performance. The tire is adhered to the surface of the tire by using a dispersion liquid containing a metal oxide having a diameter of at least a single nano level.

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Rubber composition for tires containing nanocellulose, silica, and/or carbon black that improves both tensile strength and elongation compared to using nanocellulose alone. The nanocellulose used is water-insoluble with a dispersed water pH of 4.5-6.5. The nanocellulose amount is 0.1-30 parts by mass relative to the diene rubber. The silica and carbon black total is 0.1-80 parts by mass relative to the diene rubber.

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Low heat generation and high wear resistance silica/rubber composite material for tires that improves tire tread performance by reducing rolling resistance and improving wear resistance. The composite material contains silica, rubber, coupling agents, and functional additives. The functional additives have structures containing a silicon-oxygen-carbon (Si-O-C) group and a hydroxy group (-OH). The additives improve interface bonding between the silica and rubber matrix. The composite material has lower heat generation and better wear resistance compared to standard silica-filled rubber.

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High-performance composite rubber for tires with improved cold resistance and toughness using nanomaterial modification. The composite rubber comprises a matrix of styrene-butadiene, butadiene, and natural rubber, nano-fillers like carbon black, clay flakes, and carbon nanotubes, and a silane coupling agent. The nanomaterials improve cold resistance and toughness compared to conventional rubber. The composite rubber is prepared using a mixing apparatus with a rotating plate and stirring rods that have gravity autotransmission components. The rotating plate and rods have gyro rotating sleeves with fins and magnetic balls to change the center of gravity and assist rotation. This improves mixing efficiency, disperses the nanomaterials, and reduces bubbles and pores during mixing.

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A biphase nano filler for styrene butadiene rubber (SBR) that improves strength, elongation, and UV resistance compared to carbon black filler alone. The filler is a composite of spiral nano carbon fibers with nanoscale TiO2 particles loaded on the fiber surfaces. The spiral carbon fibers provide reinforcing properties, and the TiO2 enhances UV resistance. The composite filler can replace a small amount of carbon black in SBR formulations to significantly boost mechanical performance and UV stability.

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Rubber composition for tire treads that improves wear resistance while maintaining wet road braking performance and low fuel consumption. The composition contains a masterbatch with carbon nanotubes and natural oil added to the base rubber. The masterbatch has a weight ratio of 0.1:1 to 1:1 of carbon nanotubes to natural oil. This masterbatch is mixed into the rubber composition along with silica filler. The carbon nanotubes and natural oil enhance wear resistance without sacrificing wet grip or fuel efficiency compared to using just silica filler.

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Rubber composition for tire treads with improved dispersion of carbon nanotubes. The composition contains a master batch with dispersed carbon nanotubes that is mixed with the main rubber components. This allows more uniform distribution of carbon nanotubes in the rubber compared to adding them directly. The master batch has a carbon nanotube content of 1-100 parts by weight per 100 parts rubber. By dispersing the carbon nanotubes first, it avoids issues like agglomeration and requires simpler processing compared to modifying the nanotubes or using multiple steps to disperse them in the rubber.

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Rubber composition for tire treads with improved wear and braking performance. The composition contains metal oxide-coated carbon nanotubes as filler. The coating improves dispersion and compatibility with the rubber matrix. This allows reduced filler loadings compared to uncoated carbon nanotubes. The metal oxide coating also enhances braking and wear resistance. Other components like silica, oils, and curing agents are used. The composition provides a balance of properties like hardness, modulus, elongation, and tack for tire tread performance.

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