160 results about "Synthetic rubber" patented technology

The invention belongs to the technical field of sealing materials, and particularly relates to a rubber composite sealing material and a liquid phase preparation method and application thereof. According to the liquid-phase preparation method of the rubber composite sealing material, provided by the invention, based on deep understanding of a liquid-phase synthesis process of first liquid-phase pre-dispersion and then condensation, a modified carbon black dispersion liquid, a modification auxiliary agent and a modified synthetic rubber latex dispersion liquid are prepared, so that carbon black and the auxiliary agent can be promoted to be uniformly and stably dispersed in a synthetic rubber system; the dispersion uniformity of the carbon black and the auxiliary agent is improved, so that the vulcanized rubber composite sealing material is not easy to have insufficient or excessive local crosslinking or structural defects, thereby improving the mechanical property, air tightness and cold resistance of the rubber composite sealing material, and being a high-performance rubber composite material; the technical problem that a high-performance rubber material is difficult to prepare by an existing preparation method is solved.

The sustainable hydraulic hose comprises of an inner-tube, reinforcement which renders robustness to the hose to withstand higher pressures and finally the cover compounds which is the exterior most part of the hose. The present invention relates generally to a sustainable hydraulic hose which is substantially minimizing the use of conventional fossil fuel derived raw materials. Nitrile (NBR) / SBR based innertube is used along with Nitrile (NBR) / SBR based cover compounds and the hydraulic hose accounts for at least 50 % and extendable up to 80 % sustainability. Unlike conventional hoses, which may use petroleum-based synthetic rubbers, sustainable options often incorporate recyclable or biodegradable materials like elastomers, fillers, rubber additives, plasticizers which is derived from bio- origin without depleting the non-renewable resources and at the same time it is ensured that the hoses meet high standards for both performance and environmental impact, providing users with assurance of their eco-friendly credentials.

The invention relates to a hot melt adhesive film for bonding TPO and an epoxy plate and a preparation method thereof, the hot melt adhesive film comprises the following raw materials by mass: 10-30 parts of a polyolefin elastomer, 20-40 parts of synthetic rubber, 10-30 parts of modified synthetic rubber, 10-30 parts of tackifying resin, 10-30 parts of softening oil, and 1-5 parts of a cross-linking agent. The modified synthetic rubber is a mixture of maleic anhydride grafted SEBS rubber and epoxy modified SBS rubber; uniformly mixing the polyolefin elastomer, the synthetic rubber, the modified synthetic rubber, the tackifying resin and the softening oil, and granulating through a granulator; and uniformly mixing a cross-linking agent and the obtained particles, putting the mixture into a double-screw extruder, and carrying out melt extrusion to obtain the hot melt adhesive film. The hot melt adhesive film disclosed by the invention has high bonding strength on TPO and epoxy plates, and is simple in preparation process and convenient to use.

The invention provides steel wire rubber formula rubber based on bionic synthetic rubber. The steel wire rubber formula rubber comprises 70-90 parts of bionic synthetic rubber, 10-20 parts of butadiene rubber, 6-10 parts of zinc oxide, 0.5-1 part of stearic acid, 2-4 parts of an anti-aging agent, 1-2 parts of an adhesive, 3-6 parts of reinforcing resin, 0.4-2.5 parts of a resin curing agent, 50-100 parts of carbon black, 1.5-2.5 parts of an accelerant and 5.5-7.5 parts of a vulcanizing agent. The invention further provides a preparation method and application of the formula adhesive for the steel wire adhesive. The steel wire rubber formula rubber based on the bionic synthetic rubber provided by the invention is excellent in processability and good in steel wire frictioning effect, and the steel wire rubber has high bonding performance with a steel wire after vulcanization.

Provided is a rubber material for a tire having an excellent balance among wear resistance, fuel efficiency, and a wet grip property, a masterbatch and a rubber composition for a tire suitable for producing the same. A masterbatch contains: a rubber component which is at least one selected from the group consisting of a natural rubber and a synthetic rubber; a reinforcing filler that contains hydrophilic fumed silica; and a silane coupling agent, in which a content of the hydrophilic fumed silica is 13 parts by mass or more and 130 parts by mass or less, and a content of the silane coupling agent is 1 part by mass or more and 40 parts by mass or less, with respect to 100 parts by mass of the rubber component, and a mass ratio of the hydrophilic fumed silica in 100 mass % of the reinforcing filler is 50% or more.

Disclosed is a grip (100, 300, 500, 1100) that includes a material (104, 1110) having a wrist end (120, 520, 1112), a finger end (122, 522, 1114), and sides that extend from the wrist end to the finger end. The wrist end of the material has a concave shape that (i) is between the sides of the protective material and (ii) defines at least two legs (128A, 128B, 1120, 1122) on opposite sides of an apex (126) of the concave shape. A wrist strap (102, 1102) is attached to a leg of the wrist end. A hand covering (1600, 1700) comprising a palm protection area (1702) having a non-woven composite material exposed on a first face and a synthetic rubber material exposed on a second opposite face, the palm protection area having different widths at different locations along an axis that extends between a wrist end (1606) and a finger end (1604); and a wrist securing member (1708) at the wrist end.

The invention relates to a planar flexible bandage material having two opposing outer surfaces, wherein the first outer surface is formed by a synthetic rubber compatible with human skin and the second outer surface by a material which, in conjunction with a planar flexible fixing element, can create a hook and loop connection, as well as a system of bandage material that can be cut to size and a planar flexible fixing element material.

The present invention relates to a foamable polymer composition containing a polymer selected from the group consisting of polyolefins (PO),polyolefin elastomers (POE), polyolefin block co-polymers (OBC), ethylene vinyl acetate copolymers (EVA), EVA / PO copolymers, EVA / OBC copolymers, polyvinylchloride (PVC), polymers of styrene, natural and synthetic rubbers, polyamides, polyimides, and combinations thereof, a functionalized particulate bicarbonate, and thermally expandable microspheres, to methods for manufacturing a foamed polymer using such foamable polymer composition, and the use of said foamed polymers.

The application relates to the technical field of synthetic rubber, in particular to a nitrile rubber, a preparation method and application thereof, wherein the preparation method adopts at least potassium saponification soap and / or sodium saponification soap of disulfated rosin acid, C 10 -C 13 A composite emulsifier system composed of linear alkyl benzene sulfonic acid and naphthalene sulfonic acid formaldehyde condensate sodium salt and a low-temperature emulsion polymerization process, and the obtained nitrile rubber can be used in the field of oil-resistant sealing in a hydraulic oil operation environment.

The application discloses a kind of preparation method and system of butadiene-styrene latex using emulsion coagulant modification, belong to high polymer material and synthetic rubber technical field.The application includes: the solution containing lactone compound, linear polymer with upper critical solution temperature is mixed with butadiene-styrene latex, and homogeneous premix system is formed;Under preset temperature condition, the hydrolysis reaction of the lactone compound in the homogeneous premix system is carried out, and the pH value of system drops;When the pH value of the system drops to the isoelectric point of the linear polymer, the dissolution state of the linear polymer under the preset temperature changes from hydrophilic extended conformation to hydrophobic collapse conformation, so as to coalesce latex particles in the butadiene-styrene latex.The application realizes the separation of coagulation reaction and mixing process in time, effectively inhibits the problem of local concentration polarization caused by glue deposition and particle size distribution widening, and the obtained rubber particle is uniform in size and excellent in mechanical property, suitable for industrial production.

A bioremediating composition including a consortial culture with at least one fungal culture and at least one bacterium culture, a growth medium with a waste material that includes synthetic rubber and method for producing a biodegradable byproduct from a waste material that includes synthetic rubber, preparing the growth medium with the waste material, and incubating the growth medium with at least one bioremediating composition with at least one fungal and one bacterium culture.

The invention discloses an environment-friendly rubber composition and a production method thereof, and belongs to the technical field of synthetic rubber. The rubber composition provided by the invention comprises the following components in parts by weight: 150200 parts of modified raw rubber; 50-60 parts of white carbon black; 110 to 130 parts of pottery clay; 31-43 parts of a softening agent; 5-8 parts of zinc oxide; 1-2 parts of stearic acid; 1-3 parts of polyethylene glycol; 2-5 parts of a silane coupling agent; the modified raw rubber is prepared by carrying out high-temperature reaction on raw rubber, a modifier and an organic solvent in the presence of inert gas. According to the environment-friendly rubber composition produced by the invention, the temperature resistance and the strength of the rubber can be enhanced by modifying the rubber, and the white carbon black and the argil are used for synergistic reinforcement, so that the strength and the cost are both considered, and the cost is controllable; a large amount of argil is used as a low-cost extender in the components, so that the economical efficiency is higher.

The present application relates to a kind of preparation method and application of recycled asphalt, waste modified asphalt waterproofing membrane is cut into cutting material by cutting machine, cutting material is put into special double screw extruder, and is converted into molten state recycled asphalt.The present application also utilizes layered silicate clay and biodegradable resin to modify recycled asphalt, for preparing recycled asphalt system modified asphalt or recycled asphalt containing waterproofing membrane, realizes the recycling of waste modified asphalt waterproofing membrane, especially for the recycling of waste modified asphalt waterproofing membrane containing polyester fiber, recycled asphalt system modified asphalt prepared by recycled asphalt can also reduce the dependence on petroleum chemical composition-artificial synthetic rubber required for traditional modified asphalt, and the preparation method of the present application also has the advantages of low energy consumption, little pollution, reduce carbon dioxide emissions and the like relative to existing recycling technology.

The utility model belongs to the technical field of workpiece installation and welding, and particularly relates to intelligent equipment based on uranium concentration plant flat plate supporting arm installation. A base is arranged on the portal, a six-axis mechanical arm is installed on the base, and a welding gun, a collision sensor and a welding seam tracking sensor are arranged at the tail end of the six-axis mechanical arm. And a crawler-type walking mechanism is arranged. The track is made of synthetic rubber. And a three-stage composite lifting mechanism is arranged. And a hydraulic and servo position control system is arranged. The utility model solves the problems of quality, cost and efficiency in the welding process of mounting the flat plate support arm to the door-shaped frame.

The invention discloses an energy-saving normal-pressure plasticizing device for a flexible high polymer material, the energy-saving normal-pressure plasticizing device comprises a plasticizing tank, a stirring structure, an electromagnetic induction heating device and a pressure reducing valve, the top of the plasticizing tank is provided with a feed port and the pressure reducing valve, and the side wall of the bottom of the plasticizing tank is provided with a discharge port; the pressure reducing valve is provided with a valve inlet and a valve outlet which are communicated with each other, the stirring structure comprises a main stirrer and an auxiliary stirrer, the main stirrer has a first stirring speed, the auxiliary stirrer has a second stirring speed, and the first stirring speed is different from the second stirring speed; the electromagnetic induction heating device is at least partially arranged on the outer side surface and the bottom surface of the plasticizing tank; wherein the flexible high polymer material is a rubber product, synthetic rubber and a mixed rubber material. The plasticizing device is efficient, energy-saving and environment-friendly, solves the industrial problems of high pollution and high energy consumption, and has extremely high application value.

The invention discloses high-strength anti-aging styrene-butadiene rubber and a preparation method thereof, and belongs to the field of synthetic rubber modification. Porous reticular ZnO aggregated by 6.5 nm ZnO nanoparticles is synthesized by a hydrothermal method by using a composite surfactant of PVP K30 and polyvinyl alcohol 600 in a ratio of 1: 1, and the ZnO is not dried after synthesis so as to avoid aggregation; the preparation method comprises the following steps: carrying out surface modification with a silane coupling agent KH560, carrying out segmented temperature control mixing with styrene-butadiene rubber, carbon black N330 and other assistants, and carrying out pre-crosslinking and gradient heating vulcanization to obtain a finished product. A porous net structure allows rubber slurry to fully permeate, the contact area of the filler and a matrix is increased, and efficient reinforcement is realized by low mixing amount; znO nano-particles can convert ultraviolet light into visible light, and the aging resistance is enhanced by matching with the scattering effect of a porous structure; the coupling agent modifies and optimizes the interfacial compatibility, the problem that agglomeration and performance of a traditional filler are difficult to consider is solved, and the finished product has high strength and excellent aging resistance and meets the requirements of tires, sealing elements and other scenes.

This invention provides a device and method for extracting synthetic rubber latex residue, belonging to the field of synthetic latex production technology. The device and method include a support structure and an extraction structure. The support structure includes a support plate and an extraction cylinder, with the extraction cylinder fixed to one side of the top surface of the support plate. The extraction structure includes an annular frame, a lifting component, and an extraction component. Vertical plates are fixed to both sides of the annular frame, and the ends of the vertical plates are fixedly connected to the outer surface of the extraction cylinder. A transfer component is installed inside the annular frame, and the lifting component is mounted on the transfer component. The extraction component is mounted on the lifting component. This invention eliminates the need for repeated disassembly and assembly during latex residue extraction, saving time and improving extraction efficiency. It also facilitates the collection and reuse of the latex residue, reducing resource waste.

This invention relates to the field of materials testing technology, specifically to a device for testing the fatigue tensile strength of synthetic rubber. The device includes a support assembly, an environmental conditioning assembly, a tensile testing assembly, and a discharge assembly. An environmental chamber is mounted on a base. A hoisting structure is used to hold the synthetic rubber to be tested. A sealed door is slidably mounted inside the environmental chamber, providing an entrance for the synthetic rubber. The environmental conditioning assembly is located inside the environmental chamber. A support rod is fixed inside the environmental chamber, and a sliding block is slidably mounted on the support rod. Two first clamping rods are rotatably mounted on the support rod, and two second clamping rods are rotatably mounted on the sliding block. A control component is used to control the first and second clamping rods to simultaneously clamp the synthetic rubber to be tested. A reciprocating movement component is used to control the reciprocating movement of the sliding block and the second clamping rods to drive the synthetic rubber to be tested for tensile testing. This device solves the problems of insufficient environmental simulation capability and unreliable clamping in existing technologies, achieving accurate fatigue tensile testing under multiple environmental conditions.

The invention belongs to the field of rubber oil application, and relates to a method for extracting and purifying a rubber oil component in a thermoplastic elastomer. The invention relates to thermoplastic elastomer particles, in particular to thermoplastic elastomer particles taking oil-filled styrene polymer synthetic rubber as a base material, a product and a method for extracting and purifying rubber oil from the particles and the product. The method comprises the following steps: (1) mixing thermoplastic elastomer particles or a product containing the thermoplastic elastomer particles with an extraction solvent, stirring, and filtering to obtain an extraction solution; (2) adding a precipitator into the extract, stirring, filtering and concentrating to obtain a concentrated solution; and (3) mixing the concentrated solution with methanol, extracting, separating liquid, concentrating and drying to obtain the rubber oil. The extraction solvent is a mixed solution of toluene and petroleum ether. The rubber oil obtained through the extraction and purification method is low in impurity content, operation is easy, and a specific extraction device is not needed.

This invention relates to the field of rare earth catalytic synthesis of rubber, and discloses a branched butadiene-isoprene copolymer and its preparation method. The preparation method includes the following steps: under a protective atmosphere, a composite branching agent is added to a butadiene and isoprene monomer solution, and then a rare earth catalyst is added to react fully to obtain the butadiene-isoprene copolymer; wherein the composite branching agent is prepared as follows: under a protective atmosphere, alkyl aluminum is added dropwise to a sulfur dichloride solution and reacted fully to obtain the desired composite branching agent; the present invention constructs a sulfur dichloride-alkyl aluminum composite branching agent, which is used in the branched butadiene-isoprene copolymerization reaction to obtain a branched copolymer with high cis structure content, excellent mechanical properties and processing properties.

The invention discloses a pressure-sensitive adhesive tape for a CMP process. The pressure-sensitive adhesive tape comprises a first release film layer, a first pressure-sensitive adhesive layer, a base material layer, a second pressure-sensitive adhesive layer and a second release layer from top to bottom in sequence, the first pressure-sensitive adhesive layer is obtained by coating a first adhesive pre-coating material and then curing; the first adhesive pre-coating material is prepared from the following raw materials in parts by weight: 100 parts of a rubber pressure-sensitive adhesive prepolymer, 5 to 20 parts of tackifying resin, 0.25 to 1.5 parts of a curing agent, 0.5 to 2 parts of a photoinitiator and 0.5 to 2 parts of a cross-linking agent; the rubber pressure-sensitive adhesive prepolymer is a copolymer obtained by carrying out modified polymerization on synthetic rubber by one or more acrylate monomers. According to the pressure-sensitive adhesive tape for CMP, the photoinitiator and the cross-linking agent are introduced into the first adhesive layer, cohesion of the adhesive layer is effectively improved through dual curing of thermosetting and UV curing, and in the CMP process, adhesive is not prone to being left on the surface of a machine base.

This invention belongs to the field of synthetic rubber preparation technology, specifically relating to low Mooney viscosity atactic 1,2-polybutadiene, its preparation method, and its applications. The preparation method of the low Mooney viscosity atactic 1,2-polybutadiene includes the following steps: under a protective gas atmosphere, adding a phosphate ester compound to a molybdenum compound, aging and cooling, then adding toluene to obtain a main catalyst; placing a trialkylaluminum alkane solution in an ice-water bath, adding aryloxy ligands dropwise to the container, and reacting in an ice-water bath to obtain a co-catalyst; dissolving butadiene in an alkane solution, adding the co-catalyst, main catalyst, activator, and molecular weight regulator respectively, and carrying out a polymerization reaction to obtain low Mooney viscosity atactic 1,2-polybutadiene. This invention provides a method for preparing low Mooney viscosity atactic 1,2-polybutadiene with high conversion rate; the obtained 1,2-PB has a low Mooney value and a high 1,2-structure content; it can be applied to rubber additives and damping materials to improve their performance.

The application relates to a raw rubber composition and an anti-aging agent composition, the raw rubber composition comprising: raw rubber, and alkylated diphenylamine of the application. The alkylated diphenylamine contained in the rubber composition of the application comprises a high content of C9 disubstituted diphenylamine, a low proportion of small molecular weight components, good compatibility with rubber, is not easy to precipitate, has better long-term protection effect, even if used alone, has application effect in protecting production and processing of synthetic rubber and long-term storage, and has better effect when used in combination with a phenolic antioxidant such as an antioxidant 1520 analogue (antioxidant 1530).

The utility model discloses a high-temperature-resistant insulating rubber hose which comprises a rubber hose main body, an anti-rolling structure is arranged on the outer side of the rubber hose main body, and the anti-rolling structure comprises a lantern ring, a supporting plate and a bottom plate. According to the utility model, the inner rubber layer made of the HNBR hydrogenated nitrile synthetic rubber material is arranged on the inner side of the rubber hose main body, and the HNBR hydrogenated nitrile synthetic rubber material has oil resistance, water resistance, high temperature resistance, low temperature resistance, low compression deformation and high sealing performance, so that the rubber hose can be normally used in a temperature range of-45 DEG C to + 130 DEG C; the anti-rolling structure is mounted on the outer side of the rubber hose main body, and the detachable anti-rolling structure is mounted on the part, easily rolled by a vehicle, of the rubber hose main body, so that the rubber hose main body is supported and protected, and the pressure generated when the vehicle passes through is shared; and the situation that material circulation is affected due to the fact that the rubber hose is subjected to large pressure in the material conveying process is avoided, or the situation that the rubber hose is damaged after being rolled for a long time is avoided.

A heel-cup structure for climbing shoes having increased edge-contact properties and friction on uneven surface where the heel area has a protrusion around the outer sole area under the heel and rimmed indentation between the heel counter and the outer sole. The heel-cup structure with protrusion of the outer sole made of soft, polymeric, synthetic rubber material provides a device to latch onto a thin edge of the rock surface in contact, to effectuate edging and heel-hooking.

The invention belongs to the technical field of synthetic rubber, and particularly relates to a rubber material which has the characteristic of high wear resistance and can be used for pneumatic elements. The rubber material comprises the following raw material components: graft modified molybdenum disulfide and graft modified polytetrafluoroethylene micro powder, and the graft modified molybdenum disulfide and the graft modified polytetrafluoroethylene micro powder are prepared by the following plasma-grafting method: S1, plasma pretreatment; s2, chemical grafting treatment; and S3, post-processing. The rubber material at least has the beneficial effects that products such as air cylinder sealing rings and air pump diaphragms prepared from the rubber material have sufficient mechanical properties and outstanding wear resistance, and the specific level of the latter is that the air tightness (frequency) of the latter is at least 15,000,000 times during motion fatigue wear, and the air tightness is far higher than the existing qualified standard of the nitrile rubber industry.

A sealing system for a roller bearing including a first annular shield and a first sealing cover. A first face of each that includes a coupling surface that is covered with a rubbery coating made of a synthetic rubber. The coupling surface of the first annular shield is coupled to a corresponding coupling surface of a rotating ring of the roller bearing, and the coupling surface of the first sealing cover is coupled to a corresponding coupling surface of an outer ring of the roller bearing. Each of the first annular shield and the first sealing cover is pressed from a metal sheet with a first face entirely rubberized with the rubbery coating.

The utility model discloses a continuous kneading device for synthetic rubber production, which comprises a kneading machine body and a feeding cylinder, the feeding cylinder is fixedly connected to the top of the kneading machine body and is communicated with the kneading machine body, and a detachable vibration filtering assembly is mounted in the feeding cylinder. Sundry discharging ports are formed in the positions, corresponding to the vibration filtering assemblies, of the left side and the right side of the inner wall of the feeding cylinder, shielding covers are slidably connected to the positions, corresponding to the sundry discharging ports, of the outer side of the feeding cylinder in the vertical direction, and fixing frames are installed on the left side and the right side of the feeding cylinder. The continuous kneading device for synthetic rubber production is reasonable in structural design and convenient to use, the vibration type filter screen design is adopted, sundries can be prevented from being clamped into filter holes in the feeding process, therefore, the cleaning frequency of the filter screen can be reduced, continuous discharging of normal materials can be guaranteed, meanwhile, the filter screen is designed to be quick to detach, and the service life of the filter screen is prolonged. And when the device is blocked or damaged, the device can be quickly detached and cleaned, and has higher practicability.

The invention discloses a polyethylene-propylene-3-methyl-1-butene polymer as well as a preparation method and application thereof, and belongs to the technical field of synthetic rubber. The polyethylene-propylene-3-methyl-1-butene polymer has the following molecular structure, wherein n and m are both polymerization degrees; y is branched nodes, and the number of the branched nodes is 5-6; n / (m + n) is equal to 0.38-0.42, the hydrogenation degree is 99.5-99.8%, and the viscosity index modifier is easy to dissolve in mineral oil, high in thickening capacity, low in shear shift index (SSI) and excellent in viscosity-temperature characteristic, has a good modification effect on lubricating oil and is particularly suitable for being used as a base oil viscosity index modifier.