278 results about "Liquid rubber" patented technology

The invention relates to a high / low-temperature-resistant wear-resistant tear-resistant fluorosilicone rubber compound and a preparation method thereof, and belongs to the technical field of special rubber materials, the high / low-temperature-resistant wear-resistant tear-resistant fluorosilicone rubber compound comprises the following components: raw fluorosilicone rubber, a reactive liquid rubber compatibilizer, a reinforcing filler, a tear-resistant aid, a high-temperature-resistant aid, a vulcanizing agent, an accelerant, an anti-aging agent and an anti-attrition filler, the provided reaction type liquid rubber compatibilizer contains vinyl carboxyl liquid fluorosilicone rubber, the tear-resistant auxiliary agent contains zinc polymethacrylate, the high-temperature auxiliary agent contains vinyl fluorosilane modified carbon nanotubes, and the anti-friction filler contains molybdenum disulfide and layered nano zirconium phosphate which are treated by oxygen plasma. The high and low temperature resistance stability, oil resistance, wear resistance and tear strength of the fluorosilicone rubber are synergistically improved by regulating and controlling the multi-cross-linked network structure of the fluorosilicone rubber, strengthening the interface action of the rubber and the filler and optimizing the composite vulcanization system, meanwhile, structuralization of a rubber compound is prevented by optimizing the preparation process, and the requirement for adaptability to severe working conditions is met.

The present invention relates to a solid electrolyte membrane, a method of manufacturing the same, and an all-solid-state secondary battery including the same. A solid electrolyte membrane includes a solid electrolyte, a high molecular weight polymeric binder having a weight average molecular weight of about greater than 75,000 g / mol (g / mol) but less than or equal to 1,000,000 g / mol, and a low molecular weight non-polar liquid rubber (non-polar elastomer), where the low molecular weight non-polar liquid rubber has a weight average molecular weight of about 2,000 g / mol to about 75,000 g / mol, and a viscosity of about 1 centipoise (cps) to about 100,000 cps. The all-solid-state secondary battery includes the solid electrolyte membrane.

Adhesive compositions including 20 wt. % to 80 wt. % of a polymer selected from the group consisting of a radial styrene-isoprene block copolymer, a radial styrene-butadiene block copolymer, and combinations thereof, and 3 wt. % to 80 wt. % of a liquid rubber having a molecular weight of 300 Daltons to 100,000 Daltons, where the liquid rubber is selected from the group consisting of an isoprene rubber, a butadiene rubber, and combinations thereof. Such adhesive compositions exhibit high cohesive integrity as well as high adhesion and peel properties.

An adhesive for a tennis ball includes base rubber. The base rubber contains, as a main component thereof, liquid rubber having a number average molecular weight of not less than 10,000. The adhesive has a shear viscosity of not greater than 2,000 Pa·s. A tennis ball includes a hollow core made of a rubber material. The core includes two hemispherical half cores. The two half cores are adhered to each other by using the adhesive for a tennis ball.

The invention provides a capillary crystalline waterproof agent, a preparation method and application, and the capillary crystalline waterproof agent comprises the following raw materials in parts by weight: 80-100 parts of a non-cement-based cementing material, 15-25 parts of an alkali activator, 1.5-2.5 parts of a thickener, 12.5-22.5 parts of a flexibilizer, 0.1-0.3 part of a dispersant and 5-10 parts of a water reducer, the flexibilizer is formed by mixing carboxyl-terminated liquid rubber modified epoxy resin and inorganic ceramic particles according to the mass ratio of 7: (3-5), and the dispersing agent is alkylphenol polyoxyethylene ether. Under the action of the dispersing agent, the toughening agent can be uniformly dispersed in the concrete, so that the overall toughness of the concrete is improved. The improvement of the overall toughness not only can bear deformation or shrinkage cracking of the concrete caused by evaporation of moisture, temperature difference and external stress, but also can better resist cracking from the source, reduce cracks and pores, prevent moisture from permeating and improve the impermeability of the concrete; and the bending resistance of the concrete after complete water permeability and self-healing can also be improved.

An adhesive for a tennis ball of the present disclosure includes base rubber and a filler. The base rubber contains, as a main component thereof, liquid rubber having a number average molecular weight of not less than 10,000. The filler has an average nitrogen specific surface area of not less than 40 m2 / g. A tennis ball of the present disclosure includes a hollow core made of a rubber material. The core includes two hemispherical half cores. The two half cores are adhered to each other by using the adhesive for a tennis ball.

The invention provides a preparation method of odor-free liquid rubber, and belongs to the field of rubber production and manufacturing. The method comprises the following steps: mixing raw materials; removing odor at low temperature; heating and softening; water-cooling and deodorizing; raising the temperature; and carrying out thermal degradation, cooling and glue discharging. According to the invention, after solid rubber is mixed with an auxiliary agent, especially a deodorant, the mixture is subjected to molecular chain breakage by a high-shear extruder and water-cooling deodorization, the molecular chain is further broken by a reheating and high-temperature extruder, reactive deodorization can be carried out in each extrusion stage and water-cooling stage, and finally cooling is carried out by a cooling device. And preparing the high-molecular-weight rubber into the low-molecular-weight odor-free liquid rubber.

The invention belongs to the technical field of all-solid-state lithium batteries, and particularly relates to a binder for a battery as well as a preparation method and application of the binder. The binder for the battery comprises a polymer containing hydroxyl, amino or sulfydryl and a polymer containing oxirane group or isocyanate group, at least one of the polymer containing hydroxyl, amino or sulfydryl and the polymer containing oxirane group or isocyanate group is a liquid rubber polymer. The binder for the battery has the beneficial effects that the binder for the battery has good compatibility with sulfide, and the structure of the sulfide cannot be damaged; in addition, the binder for the battery has relatively high mechanical strength, relatively high elongation at break and relatively high tensile strength, can ensure that an electrode and a sulfide electrolyte membrane prepared from the binder have excellent mechanical properties, and is suitable for preparing a solid-state battery by a roll-to-roll process; the binding agent for the battery has a wide electrochemical window, and has good compatibility with a high-voltage positive electrode and a lithium alloy negative electrode.

The invention relates to the technical field of fiber reinforced composite materials, in particular to a basalt fiber reinforced composite board in a dynamic heavy load environment and a preparation method. The basalt fiber reinforced composite board comprises an upper surface layer, an upper reinforcing layer, a core layer, a lower reinforcing layer and a lower surface layer. According to the invention, rigid nanoparticles and carboxyl-terminated nitrile rubber are introduced to construct a rigid-flexible composite toughening system, and nano aluminum oxide and silicon dioxide are taken as rigid particles and are uniformly dispersed in an epoxy cross-linked network, so that slippage and crack propagation of molecular chains can be effectively hindered, and the rigidity and damage resistance of a matrix are improved; meanwhile, the carboxyl-terminated nitrile rubber is used as reactive liquid rubber, after carboxyl of the carboxyl-terminated nitrile rubber reacts with epoxy groups, the carboxyl-terminated nitrile rubber is distributed in a matrix in a sea-island structure and can serve as stress concentration points, a large amount of crazing and shear bands can be induced, and a large amount of impact energy can be consumed; and the impact toughness is greatly improved while the high strength of the material is maintained.

The invention discloses chain end modified liquid rubber, mixed rubber, a preparation process, a tire and a vehicle, and belongs to the technical field of liquid rubber and manufacturing thereof. According to the liquid rubber, butadiene monomers and a chain transfer agent are added in batches in the preparation process, negative ion active centers are frequently transferred to the chain transfer agent from the tail end of a polybutadiene-based lithium active chain to form new initiation growth centers, then newly introduced butadiene monomers are initiated to grow, the dosage of an n-butyllithium initiator is remarkably reduced, and the stability of the liquid rubber is improved. The production cost is greatly reduced, the generation of sewage is greatly avoided, the monomer concentration of the final rubber product can reach about 80 percent by weight, the productivity is improved, and large-scale production is facilitated; the rubber also enables the filler to have good dispersibility, and has good compatibility with base rubber such as styrene butadiene rubber, natural rubber and the like.

The invention discloses a rubber composite material, a steel-rubber composite lining plate and a preparation process thereof, and the rubber composite material comprises the following raw materials: natural rubber, butadiene styrene rubber, ethylene propylene diene monomer, dual-modified white carbon black, organic modified rectorite, reinforced fibers, a vulcanizing agent, a vulcanization accelerator, an anti-aging agent, a softening agent and an activating agent. The reinforced fibers are formed by compounding modified carbon fibers and aramid pulp. The steel-rubber composite lining plate comprises a steel plate base body, a rubber composite layer and an interface bonding layer, the rubber composite layer and the steel plate base body are vulcanized and formed through the interface bonding layer, a dovetail-shaped groove is formed in the surface of the steel plate and subjected to plasma treatment, and the interface bonding layer is a coupling agent and a liquid rubber prepolymer. The rubber composite material disclosed by the invention has excellent tensile strength, wear resistance and aging resistance; the steel-rubber composite lining plate is firm in interface bonding, effectively solves the problem of rubber layer stripping under high-temperature and impact working conditions, and effectively prolongs the service life when being applied to equipment such as a mill.

The invention relates to a special single-coating type heat vulcanization adhesive for bonding butyl rubber and metal and a preparation method thereof, and the special single-coating type heat vulcanization adhesive comprises liquid rubber, a vulcanizing agent, diphenylmethane-4, 4 '-diisocyanate MDI, epoxy modified phenolic resin, pigment carbon black, fumed silica, titanium dioxide, zinc oxide and an organic solvent. According to the single-coating type heat vulcanization adhesive, the bonding strength of butyl rubber and metal is greatly improved, the bonding performance is excellent, the bonding strength is obviously higher than that of a heat vulcanization adhesive of metal and an elastomer material, the high temperature resistance and salt resistance of a bonding interface are excellent, the peel strength is still kept to be 11 kN / m or above in a salt spray experiment and a boiling water experiment, and the service life of the adhesive is prolonged. The environment resistance such as wear resistance, corrosion resistance and heat resistance is excellent.

The invention relates to the technical field of tire rubber manufacturing, and discloses a tread rubber composition containing modified liquid rubber. According to the rubber composition, solution polymerized styrene-butadiene rubber and butadiene rubber are used as rubber substrates to construct a rubber system, and high-specific-surface-area white carbon black (BET is greater than or equal to 180m / g) is also added into the rubber system. The modified liquid rubber is added into the rubber system. The modified liquid rubber is prepared by melting and grafting unsaturated regenerated liquid rubber and maleic anhydride in the presence of a free radical initiator, and waste tire resources are effectively utilized. The modified liquid rubber can be used as a wetting agent, a coupling agent and a cross-linking active matter in the tread rubber composition at the same time, can effectively improve the dispersibility of the white carbon black, enhance the interface bonding force of the white carbon black and the rubber composition, weaken the Payne effect and enhance the wear resistance of the rubber composition, and does not affect the rolling resistance and wet skid resistance of the rubber composition. And the low-energy-consumption requirement of a new energy automobile is met.

The invention discloses a degradable liquid rubber plug and a method for plugging a shaft by using the same, and relates to the technical field of petroleum engineering well plugging. The invention provides a degradable liquid rubber plug and a shaft plugging method. The rubber plug is prepared from 10 wt%-20 wt% of polylactic acid particles, 3 wt%-6 wt% of sodium alginate, 1 wt%-3 wt% of nano silicon dioxide, 0.2 wt%-0.5 wt% of ammonium persulfate and the balance water. In a shaft environment at 90-130 DEG C, the initial viscosity of the rubber plug system is 80 + / -5 mPa.s, the rubber plug system is thickened to 5000 mPa.s within 20 min to form gel, and the pressure bearing capacity is larger than or equal to 20 MPa; and when meeting an acidic solution with the pH value of 1-3, the coating can be completely degraded within 60-120 minutes without solid phase residues. The temporary plugging device is suitable for temporary plugging of the well depth within 3000m, and drilling and milling operation is not needed for unplugging.

The present invention relates to a method for preparing a liquid rubber, and relates to a method for preparing a liquid rubber, including performing polymerization reaction of a conjugated diene-based monomer in the presence of an organic solvent and a catalyst composition (S10), wherein the catalyst composition includes a catalyst including a compound represented by the following Formula 1, and a liquid rubber prepared therefrom:wherein R, R1 to R4, and o, p, q and r are described herein.

The invention relates to the technical field of rail shock absorbers, in particular to a liquid rubber composite rail shock absorber which comprises an upper iron base plate and a lower iron base plate which are located between a steel rail and a sleeper, the upper iron base plate is arranged close to the steel rail, the lower iron base plate is arranged close to the sleeper, and a shock absorption base plate is arranged between the upper iron base plate and the lower iron base plate. A damping unit is arranged between the upper iron base plate and the vibration reduction base plate in a matched mode, or the damping unit is arranged in the vibration reduction base plate and comprises at least two damping liquid cavities which are vertically communicated with each other, damping liquid is arranged in the damping liquid cavities, and the damping liquid can vertically flow through the damping holes. The shock absorber in the scheme can realize full-band self-adaptive variable stiffness and damping characteristics, has excellent dynamic and static stiffness ratio and good bearing performance, and is reliable in sealing and long in fatigue life.

The invention relates to the technical field of track shock absorbers, in particular to a floating slab vibration isolator for a liquid rubber composite track, which comprises an upper seat plate, a lower seat plate and a middle partition plate, an upper rubber body is arranged between the upper seat plate and the middle partition plate, an upper hydraulic cavity is formed between the upper rubber body and the middle partition plate, and a lower rubber body is arranged between the lower seat plate and the middle partition plate. A lower hydraulic cavity is formed between the lower rubber body and the middle partition plate, damping liquid is arranged in the upper hydraulic cavity and the lower hydraulic cavity, the damping liquid in the upper hydraulic cavity and the damping liquid in the lower hydraulic cavity can flow mutually, a containing cavity used for containing the upper rubber body is formed in the upper base plate, and a ventilation cavity is formed between the top wall of the upper rubber body and the cavity top wall of the containing cavity. A plurality of ventilation holes located above the ventilation cavity are formed in the upper seat plate, and the lower rubber body comprises an upper supporting body, a lower cover body and a middle hydraulic body. According to the vibration isolator in the scheme, metal, rubber and a flow channel structure are optimally designed, so that the ratio of dynamic stiffness to static stiffness is adjustable, and liquid sealing is reliable.

To provide a tire capable of improving grip performance during cornering. [Solution] A tire having a tread portion and a belt layer, wherein the tread portion has at least one rubber layer, and a cap rubber layer that forms the tread surface of the tread portion is made of a rubber composition containing a rubber component, liquid rubber, and a terpene-based resin, and the belt layer has a steel cord consisting of 1 to 4 filaments, and the outer diameter D of the filaments is 0.45 mm or less, and when Y=A / P is defined as A (mass%) and P (mass%), Y is 0.50 or more and Y / D is 1.6 or more.

The invention relates to the technical field of petroleum and natural gas drilling engineering, in particular to a solid-free well killing fluid and a preparation method thereof, and the solid-free well killing fluid comprises the following raw materials in parts by weight: 80-100 parts of a base fluid, 25-35 parts of a composite additive, 8-12 parts of a soluble thickener, 6-10 parts of a liquid-phase anti-collapse agent and 3-5 parts of a lubricating aid. According to the high-density well killing fluid, a high-density system is constructed through the additive solution A of the composite additive, the specific gravity upper limit of a traditional salt weighting agent is broken through, the hydrotropy stabilizing effect of triethanolamine is combined, salting-out of high-concentration components is avoided, and the problem that specific gravity increase of traditional solid-free well killing fluid is limited is effectively solved; the system viscosity is increased, a liquid rubber plug can be formed, exchange dilution of the well killing fluid and residual sewage in a shaft is effectively blocked, performance degradation caused by dilution of the well killing fluid is avoided, and material waste caused by supplementing of the well killing fluid is also reduced.

The invention provides a preparation method of modified epoxy acrylate resin, which comprises the following steps: (1) mixing epoxy-terminated polyisoprene liquid rubber, unsaturated binary acid and a catalyst A for reaction A, and then adding polyol and a catalyst B for reaction B to obtain a modifier; and (2) mixing epoxy resin, unsaturated monocarboxylic acid, a catalyst A and a polymerization inhibitor for reaction C, then adding the modifier and the cross-linking agent in the step (1), and uniformly mixing to obtain the modified epoxy acrylate resin. The synthetic process is simple, the reaction endpoint is clear, the resin toughness is improved, the resin curing shrinkage rate is reduced, and the wettability with glass fibers is improved.

The utility model relates to the technical field of rubber bushing production, in particular to rubber bushing forming equipment which comprises a supporting mechanism and a forming mechanism used for producing a rubber bushing, and the forming mechanism is fixed above the supporting mechanism. The forming mechanism is arranged, the refrigerator is started after material injection is completed, the refrigerator cools water in the water tank, the water pump is started after a period of time, cooling water in the water tank enters the flow dividing pipe under the action of the water pump, and cooling water in the flow dividing pipe enters the cooling pipe in a flow dividing mode. Cooling water flowing through the cooling pipes cools liquid rubber in the forming grooves, the cooling water absorbing heat in the cooling pipes converges and enters the collecting pipes, water in the collecting pipes returns into the water tank again through the water return pipes, the liquid rubber in the forming grooves is cooled in the mode, the temperature of water flow around all the forming grooves can be kept consistent, and the forming efficiency is improved. In this way, the cooling speed of the liquid rubber in each forming groove can be kept consistent, and the cooling efficiency is effectively improved.

The utility model discloses a waterproof and breathable antibacterial fabric for vamp, which comprises a breathable surface layer and a breathable lining cloth. The inside of the breathable surface layer is coated with a liquid rubber coating. The breathable surface layer and the liquid rubber coating are punctured to form densely distributed conical micropores. The cross-sectional area of the micropores gradually decreases from the inside to the outside. The breathable surface layer and the breathable lining cloth are bonded by glue. The breathable lining cloth is coated with a quaternary ammonium polyethylene imine zinc oxide or cuprous oxide particle solution coating. The conical micropores are opened in the liquid rubber coating. When the inside gas expands and generates pressure on the inside opening of the conical micropores, the pressure formed at the opening of the conical micropores is transmitted to the front end to form strong air pressure, and the front end of the conical micropores is opened under pressure. Conversely, liquid cannot enter from the front end of the conical micropores, forming an efficient waterproof and breathable effect. The breathable lining cloth is coated with a quaternary ammonium polyethylene imine zinc oxide or cuprous oxide particle solution coating, which has good antibacterial effect and is beneficial to foot health.

A method for forming an article of footwear can include arranging a scaffold layer over a last having a shape of the article of footwear to form a scaffold assembly, where the scaffold layer comprises a textile with a mesh structure. The method can further include applying a liquid rubber to an upper portion and sole portion of the scaffold assembly to form one or more layers of rubber over the scaffold layer of the scaffold assembly, thereby forming a seamless article of footwear, and removing the formed article of footwear from the last.

Provided is a rubber composition that can extinguish in a short time a fire caused by a sudden temperature rise in a battery cell, and has excellent adhesion, workability, and conformability to an object to be protected. [Solution] According to the present invention, there is provided a rubber composition comprising 50 to 2000 parts by mass of a metal hydroxide per 100 parts by mass of a matrix polymer, the matrix polymer comprising a liquid rubber and a solid elastomer, and the mass ratio of the liquid rubber to the solid elastomer is 95:5 to 50:50.

An improved rubber composition and method to create the improved rubber composition is achieved by milling reduced graphene oxide (“RGO”) in liquid rubber to induce a reduction of bulk density of the reduced graphene oxide while maintaining dispersibility in rubber without using a solvent-based process resulting in an industrially scalable process and an improved rubber composition.

The present invention relates to the technical field of thermal insulation materials, specifically disclosing a polyurethane-based spray material and its application in composite thermal insulation layers with EPDM. The polyurethane-based spray material comprises components A and B. Component A, by mass, comprises 50%-70% isocyanate prepolymer, 10%-20% liquid rubber, 10%-20% ablation-resistant resin, 5%-10% fiber filler, and 1%-5% plasticizer. Component B comprises 45%-70% amino-terminated polyether, 1%-3% vulcanization crosslinking agent, 2%-6% vulcanization activation accelerator, 5%-15% chain extender, 10%-15% fiber filler, 10%-15% ablation-resistant resin, and 1%-5% plasticizer. By introducing the liquid rubber curing system into the spray insulation material, the bonding strength between the polyurethane-based spray insulation material and the EPDM insulation material is enhanced, enabling the production of a polyurethane / EPDM rubber composite thermal insulation layer. This provides a new solution for the production of engine spray insulation layers.

The present application claims a kind of deep-drawing and high-temperature-resistant block structure polyurethane adhesive for lithium ion battery packaging and its preparation method, the adhesive is prepared by uniformly mixing the following components by weight parts: 100 parts branched liquid rubber polyol-polyether-branched liquid rubber polyol polyurethane copolymer;3-5 parts high molecular weight ultraviolet light initiator;20-35 parts isocyanate end-capped high-temperature-resistant hydrolysis polyester polyol.Compared with the solvent-based polyurethane adhesive on the market at present, the adhesive of the present application does not contain organic solvent, has the advantages of non-toxic, safe to use, environment-friendly, etc., and its water resistance, yellowing resistance, deep-drawing resistance, high-temperature resistance and other properties are very outstanding after composite curing with the substrate, especially suitable for the special requirements of lithium ion battery aluminum-plastic composite packaging material.

Embodiments provide rubber sealants and rubber sealant formulations for use in high pressure hydrogen storage and transportation. Example sealant formulations include mixtures of ethylene propylene diene monomers (EPDMs) or EPDM-like materials, optional thermally conductive fillers, optional hydrogen barrier fillers, reinforcing fillers, liquid rubbers, antioxidants, optional abrasion resistance additives, and curing agents (e.g., cross-linking agents). Example formulations are capable of peroxide curing to produce thermosetting elastomers with excellent thermomechanical properties. Example sealants provide very low equilibrium hydrogen concentrations and reduced swelling.

The invention provides liquid rubber used for water pumping energy storage and having storage stability and a preparation method thereof. The liquid rubber comprises 40-70 parts of density adjusting asphalt, 30-55 parts of a high-molecular polymer emulsion, 1-3 parts of a dispersant, 1-3 parts of a defoaming agent, 0.5-3 parts of a stabilizer and 1-3 parts of an ultraviolet aging agent. Wherein the density adjusting asphalt comprises modified anionic emulsified asphalt and a density adjusting agent, and the density adjusting agent comprises rosin resin and / or coumarone resin; the density range of the modified anionic emulsified asphalt is 0.99-1.05 g / cm < 3 >, the density range of the high-molecular polymer emulsion is 1.06-1.18 g / cm < 3 >, and the density range of the density regulator is 1.05-1.15 g / cm < 3 >. By adding the density regulator into the liquid rubber, the density difference between the modified anionic emulsified asphalt and the high-molecular polymer emulsion is reduced, and the overall stability of the liquid rubber is improved.

The invention relates to the field of rubber pad processing, and particularly discloses a rubber pad embossing production line and a production method.The rubber pad embossing production line comprises a frame, a drying box, a conveying mesh belt, a first pressing and holding assembly and a second pressing and holding assembly, and the middle of the conveying mesh belt is located in the drying box and provided with a plurality of forming holes; the first pressing and holding assembly and the second pressing and holding assembly are located on the feeding side and the interior of the drying box correspondingly, and the composite layer is subjected to pre-pressing and secondary pressing through the two sets of pressing rollers so that forming and patterning of liquid rubber on the conveying mesh belt can be achieved. Under the condition that the embossing quality is ensured, the embossing efficiency is improved.