36 results about "Rubber solvent" patented technology

The invention discloses a preparation method of high-oil-resistance nitrile rubber, which comprises the following components in parts by weight: 275 parts of soft water, 50-55 parts of butadiene and 45-50 parts of acrylonitrile, wherein the addition amount of butadiene and acrylonitrile is 100 parts; the emulsifier is a dodecylbenzene sulfonic acid and naphthalene sulfonic acid formaldehyde condensate sodium salt composite system, and the dosage of the emulsifier is 2.5-5 parts; the initiator adopts persulfate, and the use amount of the initiator is 0.1-0.5 part; 0.1 part of triethanolamine; the preparation method comprises the following steps: synthesizing butyronitrile rubber cement by adopting an intermittent feeding mode of replenishing a molecular weight regulator in batches and a thermal polymerization process, adding a terminating agent and an anti-aging agent, and degassing, condensing, washing and drying to obtain a high-strength butyronitrile rubber product. The nitrile rubber has the Mooney viscosity ML (1 + 4) 100 DEG C of 90-120, the tensile strength of more than or equal to 27.5 MPa and the elongation at break of more than or equal to 450%, and can meet the application requirements in the fields of automobiles, aerospace, sealing washers and the like.

The invention relates to the technical field of recycled asphalt, in particular to a high-consumption RAP fine aggregate recycled asphalt mixture and a preparation method thereof.The high-consumption RAP fine aggregate recycled asphalt mixture is prepared from, by weight, 30-50 parts of RAP fine aggregate, 10-30 parts of RAP coarse aggregate, 25-30 parts of new coarse aggregate, 4-5.2 parts of matrix asphalt, 3-5 parts of cold additive recycled rubber cement, 3-5 parts of mineral powder and 0.2-0.26 part of warm mixing agent. When the total doping amount of the RAP is 60%, the proportion of the fine materials in the total RAP is larger than or equal to 50%, the fine materials can be stably doped, the discarding rate and energy consumption of the fine materials are remarkably reduced, and the RAP fine materials can be consumed in a high proportion.

The invention provides room-temperature vulcanized rubber cement for a static balance patch of an aircraft tire and a preparation method of the room-temperature vulcanized rubber cement, and the room-temperature vulcanized rubber cement is prepared by taking natural rubber as a main material and C5 petroleum resin, an anti-aging agent BLE-W, an anti-aging agent RD, an anti-aging agent 4020, an anti-reversion agent HVA-2, precipitated white carbon black, a silane coupling agent, high-wear-resistance carbon black, a diethyl dithiocarbamic acid accelerant and insoluble sulfur as auxiliary materials. One part is mixed through an open mill or an internal mixer to prepare masterbatch containing insoluble sulfur, then the masterbatch is dissolved in n-heptane to obtain first masterbatch cement, the other part is directly dissolved in n-heptane to obtain second masterbatch cement containing the accelerant SDC, and the two kinds of rubber cement are mixed according to the mass ratio of 1: 1 during use. The rubber cement is moderate in hardness and can perfectly accord with a natural rubber inner liner of an existing aircraft tire, the bonding strength between a static balance sheet using the rubber cement and a tire lining of the tire is high, and the rubber cement has the advantages of relatively high tensile strength and tearing strength, good heat aging resistance and room-temperature vulcanization capacity.

The invention discloses formaldehyde-free soft white adhesive cement and a preparation method thereof, and relates to the technical field of adhesive cement. The cleaning agent is prepared from the following raw materials in parts by mass: 57 to 67.5 parts of deionized water, 0.5 to 0.6 part of sodium bicarbonate, 90 to 108 parts of pre-emulsified liquid, 1 to 1.2 parts of ammonium persulfate, 3 to 4 parts of hybrid nano microspheres and 1.5 to 1.8 parts of propylene glycol methyl ether acetate. Wherein the pre-emulsion is prepared from the following raw materials in parts by mass: 45 to 54 parts of butyl acrylate, 20 to 24 parts of methyl methacrylate, 3 to 3.6 parts of acrylic acid, 5 to 6 parts of alpha-silane-terminated dynamic cross-linking agent, 15 to 18 parts of deionized water, 1 to 1.2 parts of sodium dodecyl benzene sulfonate and 1 to 1.2 parts of fatty alcohol-polyoxyethylene ether. According to the formaldehyde-free white adhesive cement disclosed by the invention, due to the introduction of the components such as the hybrid nano-microspheres and the alpha-silane-terminated dynamic crosslinking agent, the washing resistance, the flexibility after curing and the storage stability of the formaldehyde-free white adhesive cement are effectively improved.

The invention discloses slag modified rubber cement mortar and a preparation process thereof, and relates to the technical field of cement mortar, the addition of rubber particles can improve the sound insulation performance of the cement mortar, but can lead to obvious reduction of the strength of the cement mortar. The polypropylene fiber has the advantages of high tensile strength, friction resistance and the like, so that the strength of the cement mortar can be improved and the durability of the cement mortar can be enhanced by adding the polypropylene fiber into the cement mortar. The rubber particles and the polypropylene fibers are compounded by using the dopamine, and the hydrophilicity of the rubber particle-polypropylene fiber compound is also improved by using the dopamine, so that the water glass solution is better loaded on the surface of the rubber particle-polypropylene fiber compound, and the mechanical property of the cement mortar is enhanced.

The invention relates to a sealing strip EPDM (Ethylene-Propylene-Diene Monomer) rubber sheet and rubber cement dual-purpose butt joint mold which comprises cold mold pressing molds and hot mold heating molds, the cold mold pressing molds are symmetrically arranged, and the two symmetrical hot mold heating molds are arranged between the cold mold pressing molds; according to the method, the phenomena of part appearance bruising, coating scalding and cracking caused by a hot mold are improved, the appearance state of a joint is improved, and the problem of technological limitation of an old mold is solved.

The invention belongs to the field of tire production, and particularly relates to adhesive cement and a preparation method thereof, and the adhesive cement comprises the following components in parts by weight: 18-20 parts of adhesive cement, 280-300 parts of 120 # gasoline, and 1.9-2 parts of tert-butyl phenolic resin. The rubber cement glue is prepared from the following components in parts by weight: 30 to 40 parts of master batch rubber cement glue, 0.1 to 0.2 part of an accelerant NOBS (N, N-Butyl Styrene) and 0.48 to 0.6 part of sulfur. According to the present invention, with the tire blank bonding adhesive cement, the adhesion between the parts is increased so as to improve the bubble and delamination phenomena of the finished tire;

The invention relates to the technical field of polyurethane, and particularly discloses waterborne polyurethane, a preparation method thereof and application of the waterborne polyurethane in printing adhesive cement. The preparation method of the waterborne polyurethane comprises the following steps: S1, at 98-102 DEG C, carrying out heat preservation reaction on 170-180 parts by weight of polyol, 45-55 parts by weight of isocyanate and 5-10 parts by weight of 1, 4-butanediol for 1.5-2.5 hours, then adding 25-35 parts by weight of acetone and 0.08-0.12 part by weight of a catalyst, and continuously carrying out heat preservation reaction until the content of NCO in a system is 0.8-1.2%; s2, adding 515-525 parts of acetone into a system obtained in S1, cooling to 45 DEG C or below, adding 4-6 parts of sulfonate, continuously stirring for 25-35 minutes, then adding 280-320 parts of water, emulsifying for 5-10 minutes, adding 35-45 parts of a diaminocarboxylic acid aqueous solution after emulsification is finished, and uniformly mixing; and S3, carrying out reduced pressure distillation on the system obtained in the step S2, adjusting the pH value of the system to be neutral, and filtering to obtain the waterborne polyurethane. The polyurethane provided by the invention can be used for printing rubber cement, and has the advantage of prolonging the opening time of the printing rubber cement.

Disclosed herein are processes for preparing a resin-extended rubber by mixing at least one thermoplastic resin with a resin-rubber-solvent cement comprising at least one conjugated diene monomer-containing rubber and the resin-extended rubber resulting from such processes. Also disclosed is a resin-extended rubber-solvent-cement comprising at least one conjugated diene monomer-containing rubber, at least one non-polar solvent, and at least one thermoplastic resin as well as a rubber composition comprising a resin-extended rubber.

The utility model relates to the technical field of pad printing equipment, and discloses a rubber cement material pad printing device which comprises a telescopic column, a connecting base, a pad printing mold and a clamping assembly, the connecting base is fixed to the end of the telescopic column through a bolt, the clamping assembly is arranged at the bottom of the connecting base, and the pad printing mold is clamped by the clamping assembly; and the clamping assembly comprises a clamping module, a rotating rod and a small motor, one end of the clamping module is arranged at the position, close to the bottom, in the connecting base, the rotating rod is arranged in the connecting base and is in threaded connection with the clamping module, and the small motor is arranged on the outer side of the connecting base. According to the adhesive cement material transfer printing device, the rotating rod is driven by the small motor to rotate, and the two sections of threads arranged outside the rotating rod are opposite in direction and are in threaded connection with the two first sliding feet correspondingly, so that the two first sliding feet are close to or away from each other, then the arc-shaped clamping blocks and the second sliding feet are driven to move, and a replaced transfer printing mold is conveniently clamped.

The application provides a lithium negative electrode slurry and a homogenizing process thereof. The negative electrode slurry comprises graphite, a conductive agent, a binder, a thickening agent and a solvent. The conductive agent comprises at least one of carbon nanotubes, conductive carbon black and graphene. The thickening agent comprises sodium carboxymethyl cellulose. The binder comprises PAA or a water-based binder copolymerized with PAA, and butadiene styrene rubber. The solvent is deionized water. The total solid content of the negative electrode slurry is 46-50%, and the initial viscosity is 2500-4000 mPa.S. The negative electrode slurry is prepared by combining dry and wet methods. The application has the advantages that carbon nanotubes, carbon black and graphene can be effectively used as the negative electrode composite conductive agent in the water-based negative electrode slurry, the negative electrode slurry has good dispersion effect, good stability, good coating performance and is not prone to delamination, and the negative electrode plate can be effectively improved in resistivity, reduced in impedance, improved in energy density of the battery cell and increased in liquid retention.

The application provides a linear guide rail type rubber solvent fatigue testing instrument, and relates to the technical field of fatigue testing, which comprises a mounting shell, a bottom plate arranged in the mounting shell, a mounting plate fixedly arranged on the bottom plate, a linear guide rail assembly arranged on the front side of the mounting plate, an upper clamping assembly mounted on the linear guide rail assembly, two left-right symmetrical mounting blocks fixedly arranged on the rear side of the mounting plate, a concave part mounted on the mounting blocks, a lower clamping assembly arranged on the concave part, the upper clamping assembly and the lower clamping assembly used for clamping rubber parts, a lifting assembly arranged on the rear side of the mounting plate, a limiting assembly arranged on the lifting assembly, and a cup body arranged on the limiting assembly. The concave part is mounted on the mounting blocks, so that the lower clamping assembly does not move along with the movement of the lifting assembly, the rubber parts and the cup body are more convenient to remove and replace, and the convenience of the device is effectively improved.

The invention relates to the technical field of rubber protective materials, and discloses a synergistically modified ethylene propylene diene monomer glove material with high chemical medium permeation resistance and a preparation method thereof. The glove material comprises synergistically modified ethylene propylene diene monomer rubber, zinc oxide, dicumyl peroxide, sulfur, an accelerant, an anti-aging agent, carbon black, a silane coupling agent and an organic solvent, wherein the synergistically modified ethylene propylene diene monomer rubber constructs a multi-crosslinking system synergistically by introducing a hydrazine hydrazone dynamic covalent network, a coordination structure and an organic-inorganic hybrid structure. The preparation method comprises the following steps: preparing synergistically modified ethylene propylene diene monomer rubber, preparing a rubber compound and rubber cement, and carrying out dip forming on a mold to form the glove material with the multi-layer compact structure. Through multi-scale synergistic modification, the chemical medium permeation resistance, the air tightness, the mechanical property and the aging resistance of the material are remarkably improved, the preparation process is simple, and the material is suitable for the field of high-end dry box protection.

The invention provides a crack defect repairing method for a large rubber-fabric composite flexible sealing ring. The crack defect repairing method comprises the following steps: a) detecting and recording the hardness of the sealing ring in a plane area around a crack defect; b) polishing the crack part to form a repairing area which is tidy in edge and is flush with the original sealing surface, and measuring the size of the repairing area; c) selecting an unvulcanized rubber repair film matched with the hardness of the sealing ring; d) sequentially carrying out sand blasting, solvent cleaning and rubber cement impregnation pretreatment on the repairing fabric; e) cutting rubber repairing films and repairing fabrics according to the types of the crack defects, and alternately arranging and filling the repairing area with the rubber repairing films and the repairing fabrics to form a repairing layer; (f) placing the sealing ring filled with the repairing layer into a heating mold matched with the section of the original sealing ring, heating, pressurizing and vulcanizing to finish repairing; layered repairing and heat vulcanization reinforcing are adopted according to the crack type, on-site rapid repairing of the flexible sealing ring is achieved, the strength and the air tightness are remarkably recovered, meanwhile, the downtime is effectively shortened, and the maintenance cost is reduced.

The utility model relates to the field of rubber chemical machinery, in particular to a rubber cement machine capable of preventing materials from splashing. The mucilage machine capable of preventing the materials from splashing comprises a support, a stirring barrel, a partition plate, a stirring shaft, a motor, a sleeve, a stirring rod, a thin rod, a barrel cover, a screw rod and a protective cover, the support is used for supporting and fixing the whole mucilage machine, and the stirring barrel used for containing mucilage to be stirred is fixedly connected to the upper portion of the support; a partition plate used for partitioning the inner space of the support is fixedly connected into the support. According to the mucilage machine capable of preventing the materials from splashing, through the design that the stirring shaft penetrates through the bottom of the stirring barrel, and the trapezoidal prism structures of the stirring rods and the thin rods are combined, the materials are uniformly stirred from the bottom and pushed upwards in the stirring process, the material splashing phenomenon caused by rotating centrifugal force is effectively reduced, and the stirring efficiency is improved. And the arrangement of the protective cover further enhances the effect of preventing the materials from splashing.

The utility model discloses a filling device for white adhesive cement production and processing, relates to the field of white adhesive cement production, and provides the following scheme aiming at the problem of non-uniform filling during the existing white adhesive cement filling and processing: the filling device comprises a base, the top end of the base is fixedly provided with a bracket I which is arranged in an L shape; a hopper is fixedly installed at the top end of the horizontal section of the first support, a motor groove is formed in the top end of the base, a stepping motor is fixedly installed in the motor groove, a rotating rod is fixedly installed on an output shaft of the stepping motor, and a first rotating disc is fixedly installed at the top end of the rotating rod; first filling material barrels which penetrate through a disc body of the first rotary disc and are distributed in an annular array mode are fixedly installed on the first rotary disc, and a second support which slides in the height direction of the first support and is arranged in an L shape is installed on the vertical section of the first support. The white adhesive cement filling device is novel in structure, white adhesive cement can be uniformly filled, and meanwhile the filling amount can be effectively adjusted according to actual needs.

The present application relates to a kind of rubber cement stabilized macadam mixtures rubber particle gradation optimization method, comprising the following steps: step 1, accurately control the gradation of aggregate;Step 2, determine rubber uniform dosage and cement uniform dosage;Step 3, select six positions of the largest size in particle size size below 9.5mm as replacement position, corresponding to the rubber particles of the same position are made;Step 4, for the aggregate position above particle size 2.36mm, the same volume of rubber particles of the same position is replaced, for the aggregate position below particle size 2.36, the rubber particle gradation is replaced using down-grade half method, obtain six groups of rubber particle gradation scheme;Step 5, prepare ordinary cement stabilized macadam test piece and six kinds of rubber cement stabilized macadam test piece under gradation scheme;Step 6, compare to obtain the best gradation scheme;The present application can realize the determination of the best rubber particle replacement scheme, help to promote the research of rubber particle mixed in ordinary cement stabilized macadam.

The invention discloses a method for rapidly detecting the content of bound acrylonitrile in nitrile rubber cement, which comprises the following steps of: acquiring a near infrared spectrum of the rubber cement by using a near infrared spectrum analyzer, measuring the content of bound acrylonitrile in the rubber cement, and performing spectrum pretreatment on infrared spectrum information; establishing a mathematical model of the processed near infrared spectrum and the corresponding bound acrylonitrile content, evaluating the mathematical model to obtain an accurate near infrared prediction model, and measuring the bound acrylonitrile content in the to-be-measured rubber cement by using the near infrared prediction model. The method disclosed by the invention is based on a near infrared spectroscopic analysis technology, can realize rapid nondestructive measurement of the content of bound acrylonitrile, is simple and convenient to operate and is an environment-friendly analysis method, and an operator does not need to contact a chemical reagent.

The present invention provides a rubber solvent resistance fatigue tester, which relates to the field of fatigue testing technology, including a workbench, a vertical plate fixedly provided on the workbench, a first lifting mechanism provided on the rear side of the vertical plate, an L-shaped connecting rod provided on the upper side of the first lifting mechanism, a first clamping assembly and a force sensor provided on the L-shaped connecting rod, a protruding plate symmetrically provided on the front side of the vertical plate, a concave plate provided on the protruding plate, a second clamping assembly provided on the concave plate, a second lifting mechanism also provided on the front side of the vertical plate, a third clamping assembly provided on the second lifting mechanism, the third clamping assembly being used to clamp a measuring cup, a solvent-resistant component provided in the measuring cup, and the first clamping assembly and the second clamping assembly being used to clamp a rubber sample. The present invention has a simple structure, is easy to use, and has strong operability. By providing a shell, the safety of the device can be effectively improved. By providing a force sensor, the force applied to the rubber sample when it is broken can be more accurately detected, thereby better adjusting the production process and proportioning.

The utility model discloses a kind of rubber cement packaging equipment's rubber cement module, including horizontal displacement mechanism, the mounting bracket of setting in the movable end of horizontal displacement mechanism, the material wheel of rotation setting in mounting bracket for placing adhesive tape, the material pulling mechanism for pulling out adhesive tape along vertical direction, the compression roller assembly for being set to the rear of material pulling mechanism and being used to press the upper and lower surfaces of the outer edge of paper tray on the adhesive tape pulled out and the cutter assembly being set to the upper of compression roller assembly;Horizontal displacement mechanism includes mounting seat, the first screw rod of rotation setting in mounting seat, the first motor of being installed in one end of mounting seat and being connected with first screw rod and the sliding seat of being slidably arranged in mounting seat, sliding seat is provided with screw nut for being used to form thread cooperation with first screw rod, mounting bracket is connected with sliding seat.The utility model has the advantages of small control noise, stable operation, high control precision, and can control rubber cement module to any position according to actual needs, to adapt to different specifications of paper tray rubber cement needs.

The invention provides a method for preparing an anti-overload organosilicon potting glue based on nano-microspheres, comprising: preparing a first mixture formed by organosilicon rubber, a solvent and nano-silicon dioxide microspheres or surface-modified nano-silicon dioxide microspheres; preparing a second mixture formed by a curing agent and a catalyst; and subjecting the first mixture and the second mixture to stirring degassing, pouring degassing and curing to form an anti-overload organosilicon potting glue. The nano-silicon dioxide microspheres are monodisperse silica microspheres with Si-OH surface groups in the range of 50-500nm, or a composite mixture composed of several monodisperse microspheres; the organosilicon rubber is methyl vinyl silicone rubber or hydroxyl silicone rubber; the solvent is one or more of ethyl acetate solvent, cyclohexane solvent or anhydrous ethanol; or one or more of benzene, cyclohexane or n-hexane solvent; the curing agent is an organic silicate or a hydrogen-containing silicone oil; the catalyst includes an organic tin catalyst or an organic platinum catalyst; and the corresponding anti-overload organosilicon potting glue is also disclosed.

The invention discloses high-freezing-resistance super-hydrophobic rubber cement mortar and a preparation method thereof, and belongs to the technical field of building materials.The high-freezing-resistance super-hydrophobic rubber cement mortar is prepared from, by weight, 176-220 parts of water, 400 parts of cement, 540-630 parts of sand, 26-30 parts of rubber particles, 40 parts of silica fume and 60-66 parts of polydimethylsiloxane. Under the condition of not adding other substances, through the synergistic effect of the rubber particles, the polydimethylsiloxane and the silica fume, the freezing resistance and super-hydrophobicity of the cement mortar can be greatly improved, and the healthy service life of buildings in cold regions is remarkably prolonged.

Disclosed herein are processes for preparing a resin-extended rubber by mixing at least one thermoplastic resin with a resin-rubber-solvent cement comprising at least one conjugated diene monomer-containing rubber and the resin-extended rubber resulting from such processes. Also disclosed is a resin-extended rubber-solvent-cement comprising at least one conjugated diene monomer-containing rubber, at least one non-polar solvent, and at least one thermoplastic resin as well as a rubber composition comprising a resin-extended rubber.

The present invention relates to the field of bonding technology, and more particularly to a bonding composition, a preparation method thereof, and applications thereof. The present invention provides a bonding composition, wherein raw materials for preparing the bonding composition include fluororubber, peroxide, and a solvent; the weight ratio of the peroxide, fluororubber, and solvent is 1:(70-150):(700-1500). During application, the bonding composition provided by the present invention can bond metal parts to rubber with good corrosion resistance, good solvent resistance, and good media resistance, thereby extending the service life of the bonded assembly in acidic and alkaline environments.

The utility model provides a movable reciprocating glue spraying and recycling paddle bucket, and belongs to the technical field of glue spraying cotton production equipment. Supports are arranged on the two sides of the fiber web conveying mechanism. A reciprocating glue spraying mechanism is arranged at the top of the bracket; sliding rails are arranged on the support and located below the two ends of the reciprocating type glue spraying mechanism. A mucilage collecting hopper is arranged on the sliding rail in a sliding manner; the bottom of the rubber cement collecting hopper is obliquely arranged, and the end part, facing the center of the fiber web conveying mechanism, of the rubber cement collecting hopper is relatively high; the end, away from the center of the fiber web conveying mechanism, of the rubber cement collecting hopper is provided with a liquid discharging conveying pipe. The glue collecting hoppers are arranged below the two ends of the reciprocating type glue spraying mechanism, glue which is sprayed by the glue spraying mechanism and exceeds the edge of a fiber web can be recycled, the glue recycling proportion is improved, meanwhile, the glue is prevented from being adhered to a chain rod of the fiber web conveying mechanism, and the influence on fiber web conveying is reduced.

The utility model discloses an automatic gluing device for a formed edge part of a conveying belt, which relates to the technical field of rubber conveying belts and comprises a material box and a pasting component, the material box comprises an upper material box and a lower material box which are arranged up and down, and the lower material box is used for storing rubber cement; the upper material box and the lower material box are connected to form a supporting table used for bearing the edge of a belt blank of the conveying belt. The pasting assembly is arranged on the upper material box and comprises a first pasting piece partially extending to the supporting table so as to make contact with the edge of the conveying belt blank and a second pasting piece capable of making contact with adhesive cement and transferring the adhesive cement to the first pasting piece so as to coat the edge of the conveying belt blank. According to the automatic gluing device, the second gluing piece makes contact with the mucilage and transfers the mucilage to the first gluing piece to coat the edge of the belt blank of the conveying belt, manual operation is not needed, the automatic gluing device continuously and evenly smears the mucilage on the edge of the belt blank of the conveying belt along with continuous movement of the forming trolley, and the phenomena that the mucilage is not evenly smeared, the labor cost is increased, and materials are wasted can be avoided.

The application belongs to the technical field of perovskite components, and relates to a preparation method of modified epoxy butyl glue and a packaging method of perovskite components. The preparation method of the modified epoxy butyl glue comprises the following steps: placing butyl rubber after being cut into a round-bottom flask provided with a magnet, then adding a n-hexane solvent to obtain rubber cement; adding m-chloroperbenzoic acid-toluene solution dropwise to obtain glue solution; adjusting the pH value of the glue solution to 7-10 by using a sodium hydroxide solution, and washing the glue solution with distilled water until a glue block is formed; adding 0.5-5.0 wt% of an imidazole or derivative modifier to the glue block, heating on a heating table at 50-60 DEG C and performing magnetic stirring, so that the modifier is mixed with the glue block, and the modified epoxy butyl glue is obtained after 1-2 hours of reaction. The modified epoxy butyl glue contains the imidazole or derivative modifier, improves the packaging yield of perovskite component production and the stability of the perovskite component after packaging, and enables the perovskite component after packaging to have good aging performance.

The invention discloses an interface modification method of a PPTA enhanced carboxyl PC damping film embedded thermoplastic composite material, which comprises the following steps: carrying out surface treatment on an enhanced phase PPTA by using a CaCl2 ethanol solution to improve the numerical value of surface roughness and chemical activity of the enhanced phase PPTA; the method comprises the following steps: treating the surface of a matrix phase polycarbonate (PC) sheet by using dichloromethane and a hydrochloric acid solution, and hydrolyzing a molecular structure on the surface of the PC under an acidic condition to introduce carboxyl; the preparation method comprises the following steps: dissolving functional phase methyl vinyl silicone rubber (VSI) in dichloromethane to prepare damping rubber cement; the three modified materials can be subjected to chemical co-grafting under the action of a silane coupling agent KH560, chemical bonds are mutually formed between two-phase interfaces, and the two-phase interfaces are connected into a whole through molecular bridging, so that the aim of improving the interface performance of the thermoplastic damping composite material is fulfilled; through FTIR (Fourier transform infrared spectroscopy), SEM (scanning electron microscope), EDS (enhanced dispersion spectroscopy), H extraction test, interlayer shear test and the like, co-grafting effectiveness verification is carried out on a sample manufactured by the method, and a foundation is laid for wide application of the PPTA reinforced thermoplastic resin-based damping composite material.

The utility model discloses an improved spraying device for automatically preparing rubber cement for an inflating valve of a butyl inner tube. The device is provided with a curtain coating plate, a curtain coating device, a curtain coating section, a rubber cement circulating storage tank, an automatic prepared liquid storage tank, a preheating section, a drying section, a steam pipe device, a gear type oil delivery pump, an automatic rotary stirring device, an automatic rubber cement leading-out pipeline and a liquid circulating storage barrel, and is characterized in that the rubber cement circulating storage tank stores preliminarily prepared rubber cement; diluted liquid entering the liquid circulation storage barrel through transmission of the gear type oil delivery pump, entering the curtain coating plate through the curtain coating gluing device, spraying mucilage and automatically preparing the liquid storage barrel is uninterruptedly input into the mucilage circulation storage box and is evenly stirred through rotation of the automatic rotation stirring device, the automation degree is high, and it is guaranteed that the concentration of the mucilage is even and stable.

The invention relates to the technical field of bonding, in particular to a bonding composition as well as a preparation method and application thereof. The invention provides a bonding composition. The bonding composition is prepared from fluororubber, peroxide and a solvent, the weight ratio of the peroxide to the fluororubber to the solvent is 1: (70-150): (700-1500). In the application process of the bonding composition provided by the invention, after a metal part is bonded with rubber, the bonding composition has good corrosion resistance, good solvent resistance and good medium resistance, and the service life of the bonding composition in an acid-base environment can be prolonged.