101results about How to "Hysteresis loss is small" patented technology

A rubber mixture, comprising (A) at least one rubber selected from the group of ethylene-propylene-diene copolymer (EPDM), ethylene-propylene copolymer (EPM), chloroprene rubber (CR), chloropolyethylene (CM), chloro-isobutene-isoprene (chlorobutyl) rubber (CIIR), chlorosulfonyl polyethylene (CSM), etylene-vinyl acetate copolymer (EAM), alkyl acrylate copolymer (ACM), polyester polyurethan (AU), polyether polyurethane (EU), bromo-isobutene-isoprene (bromobutyl)rubber (BIIR), polychlorotrifluoroethylene (CFM), isobutene-isoprene rubber (butyl rubber, IIR), isobutene rubber (IM), polyisoprene (IR), thermoplastic polyester polyurethane (YAU), thermoplastic polyether polyurethane (YEU), silicone rubber with methyl groups on the polymer chain (MQ), hydrogenated acrylonitrile-butadiene rubber (HNBR), acrylonitrile-butadiene rubber (NBR) or carboxylated acrylonitrile-butadiene rubber (XNBR), (B) at least one oxidic filler, and (C) at least one silicon containing azodicarbamide of the general formula I (R 1 ) 3-a (R 2 ) a Si-R I -NH-C(O) -N=N-C (O)-NH-R I -Si(R 1 ) 3-a (R 2 ) a (I) . The rubber mixture is produced by mixing at least one rubber, at least one oxidic filler, and at least one silicon containing azodicarbamide of the general formula I. It may be used for moldings.

The invention discloses a formula of a tread of a low-rolling-resistance tire and a preparation method thereof. The formula of the tread of the low-rolling-resistance tire comprises the following components: 10-20% of natural rubber, 10-20% of polybutadiene rubber, 20-40% of solution polymerized styrene butadiene rubber, 20-40% of high-dispersion white carbon black, 0.5-1% of a peptizer A-8, 1-2% of a chemical anti-aging agent 6PPD, 1-2% of a physical anti-aging agent microcrystalline wax, 1-3% of an active agent ZNO, 1-3% of an active agent SA, 1-3% of polyethylene glycol PEG, 1-3% of a vulcanizing agent S-325, 1-3% of an accelerant NS, 0.1-0.8% of a special accelerant CTP and 4-8% of a coupling agent SI69. The formula of the tread of the low-rolling-resistance tire has the beneficial effects that the rolling resistance of the tire is low and can reach an A level or a B level, various physical and mechanical properties of the tire are basically consistent to those of a tire having non-low rolling resistance, and the advantages of road holding of the tire on a wetland and a dry land are retained.

The invention provides a method for preparing activated rubber powder by catalytic reaction and activating reaction, and relates to a method for comprehensive utilization of waste and scrap rubber. Compared with the production of regenerated rubber, the method reduces processes of desulfurizing, kneading and refining, thereby avoiding secondary pollution to the environment. The prepared activated rubber powder has excellent compatibility with matrix rubber, and improves the physical and mechanical properties of the product. The formulation comprises the following compositions in weight portion: 100 portions of 30 to 40 meshes of waste rubber powder, 8 to 17 portions of plasticizer-dipentene, 5 to 8 portions of dusting agent-pottery clay, 0.2 to 0.5 portion of catalyst-cuprous chloride, 7 to 1.0 portion of promoting agent-polyalkylphenol disulfide, and 1 to 2.5 portions of dispersing agent-ethanol. The method comprises the following steps: placing the 30 to 40 meshes of waste rubber powder into a high-speed stirring reactor, and heating the waste rubber powder to the temperature of between 80 and 100 DEG C; adding the plasticizer, the dusting agent, the catalyst, the promoting agent and the dispersing agent into the reactor sequentially for reacting for 10 to 20 minutes at a temperature of between 80 and 120 DEG C, and cooling and discharging to produce the activated rubber powder. The prepared activated rubber powder can be used in rubber industry and building industry.

The invention discloses a low-rolling-resistance wet-skid-resistant abrasion-resistant tire tread formula. The low-rolling-resistance wet-skid-resistant abrasion-resistant tire tread formula comprises the following components: 10-20% of natural rubber, 0-20% of polybutadiene rubber, 20-60% of solution polymerized styrene butadiene rubber, 20-40% of high-dispersion white carbon black and 4-8% of a coupling agent SI69. The formula has the beneficial effects that: the hardness of a product is reduced, the wet-skid resistant performance is improved, so that a tire does not easily skid, and thus safety of the tire is improved; the abrasion resistant performance of the tire is excellent, and thus the service life of the tire is greatly increased; the rolling resistance of the tire is low and can reach an A level or a B level, various physical and mechanical properties of the tire are basically consistent to those of a tire having no low rolling resistance, and the advantages of the tire in road holding on a wet land and on a dry land are retained.

The invention discloses low-smoke low-halogen flame-retardant conveyor belt covering glue for a coal mine, and relates to the technical field of conveyor belt covering glue. The covering glue comprises the following chemical components: natural standard rubber, styrene-butadiene rubber SBR1502, cis-butyl BR9000 rubber, polyisobutylene PB1300, an anti-aging agent, zinc oxide, magnesium oxide, stearic acid, a flow release agent, N234 carbon black, nano-aluminum hydroxide, antimony trioxide, decabromodiphenylethane, composite ceramic powder, expanded halogen-free flame-retardant IFR, a multi-purpose synergistic halogen-free flame retardant PNA220, molybdenum salt used as a smoke suppressant, an accelerator and sulfur. The low-smoke low-halogen flame-retardant conveyor belt covering glue disclosed by the invention is used under a coal mine well to meet flame-retardant performance of the conveyor belt, has excellent wear resistance and flame retardancy, and is low in smoke amount and smoketoxicity.

The invention relates to a composition for a tire tread of a tire, in particular to the cowhells color rubber composition for a tire tread of a load bearing radial tire. The cowhells color rubber composition for the tire tread of the load bearing radial tire is characterized by being prepared from the following ingredients in parts by weight: 100 parts of base rubber, 4.0 to 8.0 parts of activating agents, 40 to 80 parts of white carbon black, 4.0 to 8.0 parts of silane coupling agents, 1.0 to 3.0 parts of carbon black dispersing agents, 1.5 to 3.0 parts of accelerants, 3.0 to 6.0 parts of anti-aging agents, 1.0 to 2.0 parts of vulcanizing agents, 0.1 to 0.3 part of scorch retarders and 1.0 to 3.0 parts of processing agents. The cowhells color rubber composition for the tire tread of the load bearing radial tire has the advantages that the attractive degree of the tire is improved; meanwhile, the tire rolling resistance is also reduced; the fuel saving and environment-friendly requirements can be met.

The invention discloses a formula of a snow tire. The formula of the snow tire comprises the following components: 5-15% of natural rubber, 20-40% of solution polymerized styrene butadiene rubber, 15-30% of high abrasion proof carbon black N234, 10-20% of high dispersion white carbon black, 0.5-1% of a peptizer A-8, 0.5-1.5% of a chemical antioxidant 6PPD, 0.5-1.5% of a physical antioxidant microcrystalline wax, 1-3% of an active agent ZNO, 1-3% of an active agent SA, 0.5-1.5% of polyethylene glycol (PEG), 1-3% of a vulcanizing agent S-325, 0.5-1.5% of an accelerant CZ, 0.1-0.5% of a special agent CTP and 4-8% of a coupling agent SI69. The technical scheme provided by the invention has the beneficial effects of low hardness and good elasticity of tire surface glue, low vitrification point of rubber, high wear resistance, good road holding performance on ice and snow covered pavement; therefore, the snow tire can effectively avoid skidding on ice and snow covered pavement, and enhance road safety.

The invention discloses a special highly-wear-resistant rubber material used for tire tread. The material comprises the following raw materials: natural rubber, polybutadiene rubber, modified kaolin, stearic acid modified ultrafine cerium oxide, nanometer calcium carbonate, nanometer titanium dioxide, zinc oxide, stearic acid, sulfur, 2-(4-morpholinyl dithio)benzothiazole, organic silicone-acrylate rubber particles, a methyl methacrylate-butadiene-styrene copolymer, lanthanum dioctyldith iocarbamate, cobaltic yttrium glycinemethane dithioate, N-cyclohexylthiophthalimide, an accelerator M, an accelerator CZ, an antiaging agent MB, lanthanum stearate, calcium stearate, trioctyl trimellitate and dimethyl 4-nitrophthalate. The special highly-wear-resistant rubber material used for the tire tread has the advantages of good mechanical property, high heat resistance and excellent wear resistance, and the material is used for the tire tread with good comprehensive performances and long service life.

The invention belongs to the field of rubber tire manufacturing, and discloses a snow tire, a snow tire tread rubber composition and a rubber composition mixing method. The snow tire tread rubber composition comprises in parts by weight: 100 parts of a rubber component, 35-55 parts of liquid polybutadiene rubber, and 70-90 parts of silica, wherein the mass percentage of the liquid polybutadiene rubber is 13% or more in the total composition. The liquid polybutadiene rubber is introduced into the composition, the plasticizing property of the liquid polybutadiene rubber is utilized, a part of environment-friendly oil is replaced by the liquid polybutadiene rubber, the oil content in tread rubber is reduced, and the liquid polybutadiene rubber has a relatively low glass transition temperature, so that effects of low hardness, low modulus, and low low-temperature hardening degree of the tread rubber can be achieved when a relatively large amount of the liquid polybutadiene rubber is used for filling.

The invention relates to an all-steel radial truck tire tread formula rubber compound and a preparation method and a tire thereof. The all-steel radial truck tire tread formula rubber compound comprises the following basic formula composition (by mass): 100 parts of natural rubber, 40.0-60.0 parts of high-dispersion white carbon black, 1.0-10.0 parts of high-structure wear-resistant carbon black,3.0-7.0 parts of super silane, 1.5-4.0 parts of an activator, 1.0-2.5 parts of an anti-aging agent 1, 0.5-2.0 parts of an anti-aging agent 2, 1.0-3.0 parts of an anti-aging agent 3, 2.0-3.0 parts of aplasticizer, 3.0-5.0 parts of an activator zinc oxide, 1.0-2.0 parts of a vulcanizing agent S, 1.0-2.5 parts of an accelerant, 2.0-4.0 parts of a synergist, and 0.1-0.3 part of an anti-scorching agent CTP. In comparison with the prior art, the invention has the following beneficial effects: by use of the tire thread formula, various physical and mechanical properties of the rubber compound and high speed and durability of the tire can meet the requirements of normal use; and the produced tire has excellent fuel consumption and controllability, and has good controllability, low rolling resistance, high mileage and long service life and is fuel-saving and environmentally-friendly in actual truck loading and use process.

The invention belongs to the technical field of rubber production, and particularly relates to an abrasion-resistant base compound for solid tyres of crane cars. The abrasion-resistant base compound for the solid tyres of the crane cars comprises raw materials in parts by weight as follows: natural rubber, liquid polybutadiene rubber, carbon black N234, white carbon black, a silicon coupling agent, poly-2,3,4-trimethyl-1,2-dihydroquinoline, N-(1,3-dimethyl)-N'-phenyl-p-phenylenediamine, zinc oxide, zinc stearate, N-tert-butylbenzothiazole-2-sulfenamide, tetramethyl-thiuram sulfide, sulfur, N-cyclohexylthiophthalimide and polyamide fibers. The base compound has the higher modulus and the good abrasion resistance, and meanwhile, the base compound is better in reversion resistance and low in hysteresis loss.

A multi-functional rubber ingredient and a preparation method thereof relate to the chemical engineering accessory ingredient and the preparation method thereof. Starch derivate is prepared by adding a strong alkaline solution component A with 15 percent of concentration, a halogenating epihydrin component B and a carbon bisulfide component C to the mixed solution of starch and sodium chloride, and then the multi-functional rubber ingredient is obtained by adding a strengthening agent, a coupling agent and a plasticizer. Firstly the starch xanthate is prepared, and then 100 parts of prepared starch xanthate are used as base stock, then the multi-functional rubber ingredient is obtained by adding 20 to 25 parts of strengthening agent, 0.1 to 1 part of coupling agent and 3 to 10 parts of plasticizer. Using the method to prepare the multi-functional strengthening agent has the simple technique and high grafting ratio, so the multi-functional strengthening agent has good effect when being used as a tyre rubber ingredient and processing an accelerating agent.

The invention discloses a carcass layer tread rubber of an aviation radial tire. A crude rubber system of the carcass layer tread rubber jointly adopts natural rubber and butadiene rubber; a reinforcement system adopts STERLIN V (SV) carbon black and adopts parts of white carbon black; accessory ingredients, including silane coupling agent KH-560, binding agent SL-3090, adhesion promoter AIR-201, adhesion promoter AIR-1 and the like, are added into a formula. The carcass layer tread rubber disclosed by the invention has the advantages of low hardness and stress at definite elongation, soft rubber material and small possibility of generating gaps during repeated deformation; the carcass layer tread rubber can be suitable for the performance requirements of high speed, high load and high refurbishment frequency of a novel tire in the future; before and after ageing, the carcass layer tread rubber has the advantages of high bonding strength of the rubber material and a nylon cord, good fatigue durability, low heat generation, high rebound value and small hysteresis loss; a carcass layer of the tire can be protected from delamination, swelling and tire side puncturing, and the service life and the safe performance of the aviation radial tire are improved.

The invention discloses a rubber composition. The rubber composition comprises rubber, the first filler and the second filler. The first master batches are prepared from the first filler through wet method mixing. The second filler is added to the master batches in the form of powder or the second master batches. The rubber composition can be used for manufacturing tires, and can reduce rolling resistance of tires, improve the slip-resistant performance and improve the wear-resistant performance.

The invention belongs to the technical field of rubber production, and particularly relates to an abrasion-resistant base compound for solid tyres of heavy trucks. The abrasion-resistant base compound for the solid tyres of the heavy trucks comprises raw materials in parts by weight as follows: natural rubber, carbon black N339, aromatic oil, poly-2,3,4-trimethyl-1,2-dihydroquinoline, N-(1,3-dimethyl)-N'-phenyl-p-phenylenediamine, zinc stearate, N-tert-butylbenzothiazole-2-sulfenamide, tetramethyl-thiuram sulfide, sulfur, an anti-scorching agent and P-tert-butylphenol formaldehyde resin. The base compound has the higher modulus and the good abrasion resistance, and meanwhile, the base compound is better in reversion resistance and low in hysteresis loss.

A formula of a snow tire with high tensile strength disclosed by the invention comprises the following components: 5-20% of natural rubber, 40-60% of solution polymerized styrene butadiene rubber, 10-40% of high-dispersion white carbon black, 1-3% of polyethylene glycol (PEG) and 4-8% of a coupling agent SI69. The technical scheme provided by the invention has the beneficial effects that the tire has high tensile strength and low hardness and good elasticity of tread rubber; the rubber has low vitrification point, can maintain soft under low ambient temperature, has good road holding performance, and reduces lag loss and rolling resistance. Meanwhile, the snow tire has physical mechanical properties basically consistent to those of a common tyre, and maintains the advantage in road holding on wet road and dry road.

The invention relates to a method for preparing a tread rubber material through wet-process mixing carbon black masterbatch together with white carbon black. The method includes the following steps that a, the wet-process mixing carbon black masterbatch and the white carbon black are added into an internal mixer; then additives including a coupling agent, an anti-ageing agent, an active agent, oil and one or more of other processing agents are added; afterwards, a vulcanizing agent and an accelerator are added to be evenly mixed and then a rubber compound of tread rubber is obtained; b, the rubber compound is vulcanized, so that vulcanized rubber of the tread rubber is obtained. By the adoption of the vulcanized rubber of the tread rubber, due to the fact that the white carbon black is used at the same time, the rolling resistance of tires is lowered on the premise that the abrasion resistance of the tires is guaranteed, and the wet-skid resistance of the tires is improved.

The invention discloses an engineering tire tread rubber composition. The engineering tire tread rubber composition mainly comprises rubber, carbon black, white carbon black, a white carbon black dispersant, operation oil, sulphur, a sulfuration promoter, a homogenizing agent and other additives. The engineering tire tread rubber composition has the characteristics of high modulus, high dispersity, excellent tear resistance, wear resistance, high mechanical aging coefficient and low hysteresis loss.