283 results about "Butyl rubber" patented technology

The invention relates to the technical field of photovoltaic packaging materials, and discloses a butyl sealant for a self-repairing photovoltaic module and a preparation method of the butyl sealant. The butyl sealant is prepared from the following substances in parts by weight: 40 to 60 parts of modified butyl rubber, 20 to 35 parts of inorganic filler, 5 to 15 parts of tackifying resin, 2 to 8 parts of plasticizer, 0.5 to 2 parts of anti-aging agent, 0.3 to 1.0 part of bifunctional crosslinking monomer, 0.08 to 0.25 part of composite catalyst, 2 to 5 parts of microcapsule type repairing agent and 3 to 10 parts of drying agent. According to the invention, through the dual-mechanism design of a'sulfydryl-amino-silicon oxygen bond 'dynamic network and the microcapsule type repairing agent, the self-repairing performance and the aging resistance are synchronously and remarkably improved, and the contradiction that'the self-repairing performance and the aging resistance of a traditional material are difficult to consider at the same time' is solved. Tests show that the 12h repair rate of the sealant for 3mm scratches at 50 DEG C is greater than or equal to 98%, the tensile strength retention rate is greater than or equal to 92% after the sealant is subjected to damp-heat aging at 85 DEG C / 85% RH for 1000 h, and the sealant is superior to existing similar products.

The invention discloses a stab-resistant rubber, a preparation method of the stab-resistant rubber and a stab-resistant tire, the stab-resistant rubber comprises the following components in percentage by weight: 40-60% of butyl rubber, 5-15% of aramid fiber, 10-15% of nano silicon dioxide, 10-20% of plasticizer, 1-3% of vulcanizing agent and 5-10% of additive, and the additive comprises an anti-aging agent, an accelerant and a filler which are mixed. The puncture resistance of the puncture-proof rubber is remarkably improved, puncture of a tire by a sharp object can be effectively prevented, and the risks of tire air leakage and tire burst are greatly reduced.

The invention belongs to the technical field of medical materials, and particularly relates to an oral liquid film-covered rubber plug and a preparation method thereof.The oral liquid film-covered rubber plug is characterized in that vulcanized halogenated butyl rubber serves as a base material piece, a functional film is bonded to the surface of the base material piece through a hot-pressing composite technology, and the functional film is prepared by taking ethylene-vinyl acetate copolymer with the VA mass ratio being 28-33% as a base material layer; an ethylene-vinyl acetate copolymer with the mass ratio of VA being 18-22% is used as a transition layer, and polytetrafluoroethylene or high-density polyethylene is used as a functional layer. The novel laminated rubber plug with excellent sealing performance, chemical stability and sterilization compatibility is prepared by utilizing a gradient composite structure and a multi-step process optimization technology, and the laminated rubber plug is simple in preparation method, easy to process and form and wide in application prospect.

The utility model relates to the technical field of butyl rubber plug production, in particular to butyl rubber plug surface impurity flushing equipment which comprises a rotating cylinder, a fixed cylinder and a water collecting tank, and a plurality of mesh holes are formed in the circumferential face of the rotating cylinder and the circumferential face of the fixed cylinder. And the fixed cylinder is positioned above the tank opening of the water collecting tank and is obliquely arranged. The butyl rubber plug cleaning device is provided with the fixed cylinder which cannot rotate and the rotating cylinder which rotates in the fixed cylinder, a plurality of partition plates are fixed on the outer side of the rotating cylinder, a cavity formed between the fixed cylinder and the rotating cylinder is divided into a plurality of isometric cleaning spaces, the butyl rubber plug is pushed to the top from the bottom of the fixed cylinder by the partition plates, the butyl rubber plug is turned over and stirred, and the butyl rubber plug is cleaned. The stirring degree of the butyl rubber plugs in the cleaning space is increased through the vibration assembly in a vibration mode, meanwhile, the multiple downward sprayers are arranged in the rotating cylinder and on the outer side of the fixed cylinder, the sprayers conduct spray washing on the cleaning space, the butyl rubber plugs are comprehensively washed in the stirring process, and therefore the washing efficiency is improved.

The utility model relates to the technical field of medicine packaging, and discloses a puncture-resistant halogenated butyl rubber plug which comprises a rubber plug body, the rubber plug body comprises a puncture hole, a mounting groove is formed in the puncture hole, an injection hole is formed in the bottom of the rubber plug body, and the puncture-resistant halogenated butyl rubber plug is arranged in the mounting groove. And a plurality of groups of rubber gaskets are fixedly mounted on the outer surface of the rubber plug body. The multiple sets of limiting plates can be in an open state by means of continuous descending of the injector, the drainage hole and the injection hole are in a corresponding state, and therefore it is guaranteed that a needle of the injector can enter a medicine bottle, and when the injector leaves from the rubber plug body, due to the arrangement of the buffer spring, the needle can be prevented from entering the medicine bottle. The multiple sets of limiting plates can be restored to the closed state through elasticity, so that it is avoided that liquid medicine seeps from holes or makes contact with air, the dosage of the liquid medicine is reduced or the liquid medicine goes bad, the sealing performance in the medicine bottle can be kept for a long time, the medicine is kept in a relatively stable environment, and the expiration date of the medicine is prolonged.

The utility model discloses toughened hollow glass butyl rubber coating device, including glass body, mechanical arm, conveying roll still includes, glue outlet subassembly, butyl rubber passes through the discharge of glue outlet subassembly, cleaning part, carries out the cleaning to glue outlet subassembly, promotes subassembly, and the glass body is promoted to the oblique upper side. The utility model has the beneficial effects that, through the cooperation operation of glue outlet subassembly and cleaning part, can clean the position of export in real time, avoid the hardening of butyl rubber of export position, indirectly improve the production quality, through the effect of promoting subassembly, can move glass body to the designated station actively, avoid the position of export and the scratch of conveying roll.

This invention provides a modified glass fiber, glass fiber reinforced butyl hot melt adhesive, and their preparation method. The modification method of the glass fiber includes: mixing a silane coupling agent with ethanol, stirring and hydrolyzing to obtain a silane coupling agent solution; placing the glass fiber in the silane coupling agent solution, stirring and reacting at 40-80℃ for 4-6 hours, then filtering, and curing the obtained solid product at 100-150℃ for 0.5-2 hours to obtain pre-modified glass fiber; immersing the pre-modified glass fiber in a toluene solution containing furanylsilane coupling agent, reacting under inert gas protection at 70-90℃ for 1-3 hours, and performing graft modification treatment to obtain the modified glass fiber. The use of silane coupling agent and furanylsilane coupling agent to introduce dynamic covalent bonds, synergistically modifying the glass fiber with a bilayer coupling agent, and introducing the modified glass fiber into the butyl rubber system, can effectively improve the mechanical properties and aging resistance of the butyl rubber while maintaining its original water tightness and air tightness.

The environment-friendly nuclear power high-voltage power cable comprises a cable body, and the cable body comprises a conductor, a semi-conductive shielding layer, an insulating layer, a filling layer, a belting layer, a waterproof layer, an armor layer and an outer protective layer from inside to outside in sequence; the semi-conductive shielding layer is made of a low-smoke halogen-free cross-linked polyolefin semi-conductive material; the insulating layer is made of a radiation-resistant low-smoke halogen-free cross-linked polyolefin composite material; the filling layer is a low-smoke halogen-free polypropylene filling rope; the belting layer is made of a low-smoke halogen-free polypropylene and water-based butyl rubber composite material; the semi-conductive shielding layer tightly wraps the outer side of the conductor, the semi-conductive shielding layer is made of a low-smoke halogen-free cross-linked polyolefin semi-conductive material, is used for uniformizing an electric field on the surface of the conductive wire core and preventing point discharge, and is firmly bonded with the adjacent insulating layer, and the insulating layer is made of a radiation-resistant low-smoke halogen-free cross-linked polyolefin composite material, so that the radiation-resistant low-smoke halogen-free cross-linked polyolefin semi-conductive material has good radiation resistance. And the arrangement of the filling layer, the belting layer and the outer sheath layer improves the comprehensive performance of the cable body and meets the halogen-free, low-smoke, low-toxicity and environment-friendly requirements of the cable.

The invention discloses a sol tower and application thereof. A barrel of the sol tower internally comprises an oil phase area A, a dissolving and separating area B, a feeding area C and a water phase area D from top to bottom in sequence; a glue solution discharge hole is formed in the top of the sol tower, and a water phase discharge hole is formed in the bottom of the sol tower; the feeding area C is provided with a colloidal particle water inlet and a solvent feeding hole; wherein the dissolving and separating area B is provided with a tower plate; the feeding area C is provided with a stirrer. The device can realize colloidal particle dissolution and efficient separation of an oil phase and a water phase in the preparation process of the basic rubber solution of butyl rubber.

The invention relates to an interlayer separant and application thereof. The interlayer separant is used between a polyurethane coating and an asphalt coiled material and is formed by a polyurethane coating, and the polyurethane coating comprises the following components: maleic anhydride modified polyurethane, silane modified polyurethane, maleic anhydride modified colloid and a solvent; the maleic anhydride modified polyurethane is obtained by reaction of raw materials including polyol, maleic anhydride, isocyanate and a catalyst; the silane modified polyurethane is obtained by reaction of raw materials including polyol, a silane coupling agent, isocyanate and a catalyst; the colloid is selected from one or a combination of more of petroleum resin, asphalt, rosin resin, terpene resin, butadiene-styrene rubber and butyl rubber; the maleic anhydride modified colloid is obtained by reacting raw materials including maleic anhydride, colloid and an initiator. The interlayer separant can isolate migration of auxiliaries such as a plasticizer in a traditional polyurethane coating and improve the compatibility and bonding performance of the traditional polyurethane coating and an asphalt coiled material.

To provide a rubber composition and a tire excellent in overall performance of hardness and crack growth resistance.SOLUTION: The rubber composition comprises a rubber ingredient containing a butyl-based rubber, a cyclic amine having double bonds in the ring, and carbon black having a 24M4DBP oil absorption of 170ml / 100g or more.SELECTED DRAWING: None

This invention belongs to the field of tire rubber material technology and discloses a self-healing, puncture-resistant rubber composition and its preparation method. The composition uses solution-polymerized styrene-butadiene rubber, cis-butadiene rubber, and halogenated butyl rubber as the rubber matrix, and incorporates nano-silica, bio-based organic acid surface-modified carbon black, hydrophobically modified lignin, PHA, TESPT coupling agent, compound compatibilizer, and a vulcanization system composed of diphenylurea and sulfur. This invention optimizes interfacial compatibility and crosslinking uniformity through the synergistic effect of multiple components, significantly improving the low-temperature flexibility, abrasion resistance, wet skid resistance, puncture resistance, and puncture repair performance of the rubber, while reducing rolling resistance. It effectively overcomes the problems of rubber embrittlement and uneven filler dispersion in cold environments, and can significantly improve the range and driving safety of pure electric vehicles in low-temperature environments. The preparation method is simple and suitable for large-scale industrial production.

The invention discloses a preparation method of butyl rubber for edge sealing of a photovoltaic module, and belongs to the technical field of adhesives. The preparation method comprises the following steps: putting liquid butyl rubber, polyisobutene and self-made resin into a kneading kettle, stirring and kneading for 1-2 hours at the temperature of 120-130 DEG C, raising the temperature to 160-170 DEG C, then adding a filler and a water absorbent, stirring for 1-2 hours, lowering the temperature to 100-110 DEG C, then adding a catalyst and an adhesive, stirring for 0.5-0.8 hour under the vacuum degree of-0.095-0.011 Mpa, discharging, and finally, cooling to the room temperature to obtain a finished product. The butyl rubber for edge sealing of the photovoltaic module is obtained. The butyl rubber for edge sealing of the photovoltaic module prepared by the invention has excellent flame retardant property and mechanical property.

The invention discloses a water-slowing swelling rubber material, a preparation method, a water stop strip and application, the rubber material comprises the following raw materials by weight: 9-13 parts of natural rubber, 18-26 parts of butyl rubber, 36-50 parts of bentonite, 1-3 parts of titanium dioxide, 18-26 parts of naphthenic oil, 1-3 parts of an accelerator, and 1-2 parts of a vulcanizing agent. According to the water-slowing-expansion rubber material disclosed by the invention, the contact time of bentonite particles and water is effectively delayed, so that the expansion rate of the rubber material is effectively delayed, and the problem of waterproof failure caused by water loss cracking or pulverization of the rubber material is avoided.

The invention relates to a method for producing a pneumatic vehicle tire, comprising the following method steps: a) producing or providing a green pneumatic vehicle tire comprising: i) a green carcass comprising a plurality of strength members embedded in a first vulcanizable rubber mixture, ii) a green tread arranged radially above the green carcass, the present invention relates to a green pneumatic vehicle tire comprising a green carcass comprising a first vulcanizable rubber mixture comprising at least one butyl rubber and / or halogenated butyl rubber, and iii) a green inner liner layer arranged radially below the green carcass comprising a second vulcanizable rubber mixture comprising at least one butyl rubber and / or halogenated butyl rubber, b) applying an aqueous dispersion to the surface of the green inner liner layer to obtain a prepared green pneumatic vehicle tire, wherein the aqueous dispersion comprises one or more dispersed polysiloxane particles, c) vulcanizing the prepared green pneumatic vehicle tire in a vulcanizing mold to obtain a pneumatic vehicle tire wherein the surface of the tire inner liner obtained from the green inner liner is at least partially covered with polysiloxane particles, and d) applying a sealant composition to an application area of the surface of the tire inner liner covered with the polysiloxane particles.

The application relates to the field of auxiliary mechanical equipment for tire production and a self-repairing material processing device, in particular to a butyl rubber self-repairing material composition stirring and cross-linking device. The device comprises a conical containing assembly, a stirring assembly and a vacuum assembly; the conical containing assembly comprises a conical shell and a heating assembly, the conical shell is provided with a feeding opening at the top and a discharging opening at the bottom, and is internally provided with a cavity, and the heating assembly is arranged in the curved surface of the conical shell; the conical shell comprises a conical tip portion, a conical middle portion and a conical bottom portion from bottom to top, the feeding opening is arranged at the top of the conical bottom portion, and the discharging opening is arranged at the bottom of the conical tip portion; the heating assembly is provided with three groups and is arranged in the curved surface of the conical tip portion, the conical middle portion and the conical bottom portion respectively. The device has the advantages of controllable heat duration and non-decreasing modulus, and solves the problems of short material vulcanization heat duration, insufficient vulcanization degree and modulus decrease of the existing vulcanization device.

The invention discloses a photovoltaic water-blocking and oxygen-blocking butyl rubber, the photovoltaic water-blocking and oxygen-blocking butyl rubber is composed of butyl rubber, polyisobutene and a functional auxiliary agent, the functional auxiliary agent at least contains a hyperbranched polymer, and the tail end of the hyperbranched polymer is vinyl. The photovoltaic water-blocking and oxygen-blocking butyl rubber has the characteristics of good component compatibility, good water-blocking and oxygen-blocking performance and good anti-aging performance.

The invention relates to the technical field of sealants, and discloses a high-softness butyl sealant without sticking hands and softening wire harnesses and a preparation method of the high-softness butyl sealant. The butyl sealant is prepared from the following raw materials: 5-15 parts of butyl rubber; 3 to 15 parts of polyisobutene; 3-8 parts of petroleum resin; 30-60 parts of an inorganic filler; 15 to 30 parts of a flame retardant; 0.5 to 1.5 parts of a coloring agent; 5-15 parts of a polyester plasticizer; and 5-15 parts of rubber filling oil. The butyl rubber and the polyisobutene are mixed for use, and the hardness of the sealant is suitable for manual operation through a proper proportion; compared with the common plasticizer, the polyester plasticizer has the advantages that the polypropylene glycol adipate is large in molecular weight, low in volatility and low in mobility, cannot migrate to the wire harness from the sealant, and cannot soften the wire harness; the polyester plasticizer and the rubber filling oil are mixed for use, and the sealant has the effect of not sticking hands but sticking lines through a proper proportion.

This invention discloses a method for preparing impact-resistant and cold-resistant polyvinyl chloride (PVC) conduit, belonging to the field of PVC material technology. In this invention, butyl rubber is complexed with dioctyl sebacate and active silica under the initiation of tert-butyl hydrogen peroxide. This complex acts as a flexible dispersed phase in the PVC matrix, effectively absorbing and dissipating impact energy and lowering the glass transition temperature of the material. This allows the conduit to maintain excellent toughness and crack resistance even at low temperatures. Furthermore, it works synergistically with impact modifiers in the system. Ethylene-vinyl acetate copolymer provides elastomer toughening, while maleic anhydride-styrene graft copolymer acts as a highly efficient compatibilizer and interfacial reinforcing agent. The compounded structure forms a toughening network, achieving toughening from molecular chain segment movement to microstructure, thus improving impact strength. Subsequent addition of reinforcing fibers of the same specification further enhances the strength of the conduit. Overall, this results in a PVC conduit with excellent strength, impact and cold resistance, and thermal properties.

The invention discloses a perovskite quantum dot elastomer, a preparation method thereof and a display device. The elastomer comprises perovskite quantum dots and an allyl ester polymer protective layer matrix, the perovskite quantum dots are dispersed in the matrix, and the allyl acrylate polymer matrix coats the peripheries of the perovskite quantum dots to protect the perovskite quantum dots; the component of the perovskite quantum dot is CsPbX3, X is Cl or Br, the matrix of the allyl ester polymer protective layer is a butyl rubber-OOCCnH2n + 1 polymer, and the perovskite quantum dot is prepared through an in-situ chemical reaction. The allyl ester polymer chain forms a passivation layer on a perovskite quantum dot interface, surface traps are inhibited, and entry of H2O / O2 is prevented. The perovskite quantum dot elastomer has the advantages of good film-forming property, high fluorescence quantum efficiency, good stability, long fluorescence lifetime and adjustable light-emitting wavelength, and can be applied to the fields of backlight display and the like.

The present application relates to a kind of low-temperature-resistant oil-resistant damping rubber composite material for outdoor engineering and its preparation method, belong to damping rubber modification technical field.The low-temperature-resistant oil-resistant damping rubber composite material for outdoor engineering described in the present application is prepared by high-vinyl polybutadiene rubber, butyl rubber, flocculation butyl nitrile rubber / oxidized carbon nanotube composite raw rubber and auxiliary mixing co-vulcanization.The vinyl content of high-vinyl polybutadiene rubber is 83-85%, Mn is 430-470, and the relative molecular mass distribution index is 2.0-2.5.The low-temperature-resistant oil-resistant damping rubber composite material for outdoor engineering described in the present application has a wider damping temperature range, excellent low-temperature damping performance, mechanical properties and oil resistance;Meanwhile, a simple and convenient preparation method is provided.

The invention relates to the technical field of waterproof coiled materials, in particular to a self-adhesive waterproof coiled material and a preparation method thereof. The waterproof roll comprises a polyethylene film, a main body layer, a self-adhesive layer and an isolating film from top to bottom, wherein the main body layer is obtained by extruding, granulating and melting matrix asphalt, butyl rubber, modified vermiculite, a borate compound, an antioxidant and sulfur, dip-coating gridding cloth on two sides, and calendaring and shaping; and the self-adhesive layer is obtained by melting and curing SEBS, hydrogenated petroleum resin, polyisobutene, modified vermiculite, a borate compound, a plasticizer and an antioxidant. Compared with the prior art, the prepared self-adhesive waterproof coiled material has better resistance to damp-heat aging and salt erosion, and is especially suitable for coastal, underground, high-humidity and other severe environments.

The application relates to the technical field of sports goods, and discloses a butyl inner liner PU pasting skin football based on high sealing performance and a preparation process thereof. The butyl inner liner is used to replace a traditional rubber inner liner, the air tightness is improved by more than 60%, the air preservation time is prolonged to more than 30 days without the need of inflation, the modified EVA film is used as a buffer layer, the football has soft touch and excellent resilience, and is not easy to deform after strong impact, the enhanced coating formula is used to improve the tensile strength of the pasting cloth by more than 40%, and the inner liner spherical structure is effectively maintained, the high-viscosity hot melt adhesive bonding layer is used, the peeling strength between the shell and the inner liner is improved by more than 50%, and the delamination is effectively prevented, the butyl rubber sealing rubber strip is arranged at the joint, and the air leakage hidden danger of the joint is completely eliminated, the thickness of each layer of material is accurately controlled, the football weight distribution is ensured to be uniform, and the flight stability is significantly improved, and the preparation process uses hot-pressing compounding to replace solvent bonding, no organic solvent residue is left, and the process is environment-friendly and safe.

Method of filling a pressurised dispensing container (10) with a product to be dispensed; wherein the pressurised dispensing container comprises a container (11) for the product (12) to be dispensed, and a valve fixed to the container; wherein the valve comprises a valve stem (15), a valve body and one or more seals, the valve stem being slidable within the valve body, the one or more seals co-operating with the valve stem for regulating discharge of a fluid; the valve further comprises a sealing gasket for sealing the valve to the dispensing container; and each of the one or more seals and the sealing gasket (14) comprises a polymer material comprising bromobutyl rubber; wherein the product to be dispensed comprises a propellant comprising 1,1-difluoroethane or a derivative thereof and / or 1,3,3,3-tetrafluoroprop-1-ene or a derivative thereof; and wherein the method comprises filling the container with the product to be dispensed through the valve.

The invention provides a high-heat-resistance long-service-life rubber composition for a curing bladder and a preparation method thereof. The invention relates to a high-heat-resistance long-life rubber composition for a curing bladder. The high-heat-resistance long-life rubber composition comprises the following components in parts by weight: 90-100 parts of butyl rubber; 3-10 parts of low unsaturation butyl rubber; 40 to 70 parts of reinforcing filler; 3-10 parts of a phenolic resin vulcanizing agent; 2-8 parts of an active agent; and 1-10 parts of functionalized liquid butyl rubber. The functional liquid butyl rubber with active functional groups is used for replacing traditional castor oil to prepare the rubber composition for the curing capsule, and the prepared rubber composition has excellent heat resistance and long flex life.

The utility model discloses a kind of tire vulcanization dustproof heat preservation composite cover, it is related to composite cover technical field, the side of the inner cover is fixedly connected with outer cover, the side of the outer cover is fixedly connected with round plate, a plurality of annular grooves are set up on the round plate, four rubber pressing blocks are fixedly connected in a plurality of annular groove inner wall, in the utility model, the material of rubber pressing block is butyl rubber, which is obtained by copolymerization of butadiene and styrene, has wear resistance, aging resistance and heat resistance, dust layer is extruded and stored in annular groove by two rubber pressing blocks, when dust layer is damaged, it can be directly taken off from the annular groove set up on round plate, then new structure layer is placed between two rubber pressing blocks, improve product quality, make the service life of tire longer, higher safety, reduce production cost, reduce the replacement frequency and maintenance cost of equipment.

The application provides a sound insulation rubber composite material and a preparation method and application thereof, and belongs to the technical field of rubber, and the preparation method comprises the following steps: butyl rubber and ethylene-propylene-diene rubber are added into a banbury mixer for plasticizing, then carbon black, a metal oxide compound, a modifying additive, a vulcanization activator and an antioxidant are added for mixing, vulcanization accelerators and vulcanization agents are further added for mixing, and then glue is discharged to obtain a rubber compound; the rubber compound is placed in an open mill for thin mixing and storage to obtain a mixed rubber; the mixed rubber is vulcanized on a flat vulcanizing machine to obtain the sound insulation rubber composite material; wherein the metal oxide compound is prepared by calcining and crushing cerium dioxide, titanium dioxide and silicon dioxide; and the modifying additive is prepared by using a functional polymer and modified hollow glass microbeads; the sound insulation rubber composite material has good sound insulation performance and durability, and the preparation process is simple.

The application discloses a high-molecular composite damping brominated grafting agent and a preparation method thereof. The high-molecular composite damping brominated grafting agent is a linear isotactic block copolymer composed of isocyanyl alkyl methacrylate, unsaturated carboxylic acid, 3,5-dibromostyrene and para-alkyl styrene. The application further discloses a method for preparing brominated branched butyl rubber. The method for preparing the brominated branched butyl rubber with wide temperature range and high damping has the characteristics of green environmental protection, stable product quality, easy availability of raw materials, and convenient industrial production.