73 results about "Sulfenamide" patented technology

The present invention discloses a high thermal conductivity rubber material and a preparation method thereof, and relates to the technical field of rubber production, the high thermal conductivity rubber material comprises a rubber matrix, modified carbon black, a vulcanizing agent, a composite accelerator, an anti-aging agent, zinc oxide, stearic acid, white carbon black, montmorillonite and aramid pulp according to a weight ratio of 100: (40-60): (1.5-3): (2-4): (1-3): (3-8): (1-3): (10-20): (5-15): (3-8); the modified carbon black is prepared by reacting a composite modifier solution prepared from a silane coupling agent, sodium alginate, ammonium polyacrylate, tea polyphenol, polyethyleneimine, nano aluminum oxide and deionized water with carbon black; the composite accelerant is prepared by carrying out pre-dispersion treatment on N-cyclohexyl-2-benzothiazole sulfenamide, tetramethylthiuram disulfide, a rare earth complex and nano zinc oxide. The prepared high-thermal-conductivity rubber material is good in mechanical property and thermal conductivity.

The invention relates to the technical field of preparation of compounds, in particular to a sulfenamide compound and a preparation method thereof. Compared with the prior art, a mild electrochemical method is adopted for preparing the sulfenamide compound forming the N-S bond, in the reaction process, halide salt serving as electrolyte is subjected to oxidation reaction at an anode to obtain free radicals, and after decarburization of an amine compound is promoted by the free radicals and alkali together, the free radicals react with disulfide or mercaptan to form the sulfenamide compound forming the N-S bond; the method disclosed by the invention has the advantages of good substrate compatibility and functional group tolerance, no need of additional addition of an oxidizing agent and a transition metal catalyst, simple reaction post-treatment operation and the like, is convenient to operate, high in atom utilization rate and mild in reaction condition, meets related requirements of green chemistry, and has a good development prospect.

The invention relates to the technical field of tire rubber manufacturing, and discloses a low-odor low-VOC sidewall rubber composition, a mixing method thereof and a tire, a brominated copolymer (BIMS) of isobutene and p-methylstyrene is adopted, and the use of an amine anti-aging agent is canceled; according to the invention, tetrabenzylthiuram disulfide (TBzTD) is adopted as a main accelerant, and a traditional sulfenamide accelerant is replaced; the softening and reinforcing resin is adopted to replace an oil softener, so that small molecular substances in aromatic hydrocarbon oil or naphthenic oil are prevented from being separated out, and phenol possibly generated by using phenolic resin is avoided; carbon black is matched with a small amount of white carbon black, so that odor molecules are effectively adsorbed; and the steps of lifting an upper top peg and opening a charging door for exhausting are added in the plastifying and mixing sections. The synergistic effect of the optimized formula raw materials effectively avoids the generation of odor molecules, the escape of a large number of VOC molecules is improved, and the exhaust step further reduces the residual quantity of the VOC molecules in the final mixed rubber, so that the odor grade of the tire is improved.

This invention discloses an analytical method for benzothiazole contaminants, comprising the following steps: detection by high performance liquid chromatography (HPLC), with the following chromatographic conditions: a phenylhexyl column as the stationary phase, mobile phase A being water, mobile phase B being acetonitrile, and gradient elution; wherein the benzothiazole contaminants are at least one of 2-aminobenzothiazole, 2-hydroxybenzothiazole, benzothiazole, 2-methylbenzothiazole, 2-mercaptobenzothiazole, 2,5-dimethylbenzothiazole, 2-cyanobenzothiazole, ethyl 2-carboxylate benzothiazole, 2-chlorobenzothiazole, 2-bromobenzothiazole, 2-methylthiobenzothiazole, phenylthiocyanate, N-tert-butyl-2-benzothiazole sulfenamide, 2-(2-hydroxyphenyl)-benzothiazole, N-cyclohexyl-2-benzothiazole sulfinamide, dibenzothiazole disulfide, and N,N-dicyclohexyl-2-benzothiazole sulfonamide.

An object of the present disclosure is to provide a rubber composition which comprises a hydrogenated carboxy-modified acrylonitrile-butadiene rubber as a base rubber and from which a crosslinked rubber having excellent mechanical strength and a great friction coefficient is obtained even if the rubber composition is vulcanized at a high temperature. The present disclosure provides a grip rubber composition comprising a base rubber, a vulcanizing agent and a vulcanization accelerator, wherein the base rubber contains a hydrogenated carboxy-modified acrylonitrile-butadiene rubber, the rubber composition comprises a thiuram based vulcanization accelerator in an amount of 4 parts by mass or more, a sulfenamide based vulcanization accelerator in an amount of 0.3 part by mass or more, and a thiourea based vulcanization accelerator in an amount of 0.1 part by mass or more with respect to 100 parts by mass of the base rubber, and a crosslinked rubber obtained by curing the rubber composition at a vulcanizing temperature of 185° C. has a loss coefficient (tan δ) and a complex elastic modulus (E*) (MPa) at a temperature of 25° C. in a ratio (tan δ / E*) ranging from 0.027 to 0.052, wherein the loss coefficient (tan δ) and the complex elastic modulus (E*) (MPa) at the temperature of 25° C. are measured with a dynamic viscoelasticity measuring apparatus (an oscillation frequency: 10 Hz, a strain amplitude: 0.05%, and a tensile mode).

The invention relates to the technical field of rubber, in particular to an off-road tire base rubber composition. Based on 100 parts by weight of natural rubber components, the natural rubber composition further comprises the following components in parts by weight: 20-40 parts of carbon black, 5-15 parts of silicon dioxide hydrate, 5-20 parts of nano zinc oxide, 1-3 parts of stearic acid, 1-3 parts of p-phenylenediamine, 1-3 parts of a ketoamine anti-aging agent, 1-3 parts of bis (triethoxysilyl) propyl tetrasulfide, 1-5 parts of carbon nanotubes CNT, 1-4 parts of N, N '-m-phenylene bismaleimide, 0.5-2 parts of sulfur and 0.5-2 parts of a sulfenamide accelerant. The modulus of the rubber material is improved by adding the CNT, so that the consumption of carbon black is reduced, and heat generation is reduced; by adding nano zinc oxide and carbon nanotubes, the heat conductivity of the rubber material is improved; and by adding the N, N '-m-phenylene bismaleimide, the heat resistance of the rubber material is improved.

A process for manufacturing a rubber composition which comprises more than 50 phr of a diene elastomer rich in ethylene units, a reinforcing filler comprising a carbon black and a vulcanization system comprising sulfur, a sulfenamide as primary accelerator and a thiuram polysulfide or a mixture of a thiuram polysulfide and a guanidine as secondary accelerator is provided. The process comprises mixing the highly saturated diene elastomer, the reinforcing filler and the secondary accelerator by kneading at a temperature above 110° C., in the absence of the sulfur and the primary accelerator, and incorporating the sulfur and the primary accelerator into the rubber composition by kneading at a temperature below 110° C. The process makes it possible to reduce the hysteresis of the vulcanized rubber compositions.

The invention relates to the technical field of NBR composite materials, in particular to a low-temperature-resistant wear-resistant NBR composite material and a preparation method and application thereof. The invention provides a low-temperature-resistant wear-resistant NBR (nitrile-butadiene rubber) composite material, which is prepared from the following components in parts by mass: 100 parts of NBR raw rubber, 2 to 6 parts of zinc oxide, 0.5 to 2 parts of stearic acid, 30 to 80 parts of carbon black, 1 to 3 parts of 2-mercaptobenzimidazole, 2 to 12 parts of oleylamine grafted halloysite nanotubes, 0.5 to 2 parts of sulfur and 0.5 to 4 parts of N-cyclohexyl-2-benzothiazole sulfenamide. According to the low-temperature-resistant wear-resistant NBR composite material, the compatibility of the additive and the NBR raw rubber is good, and the blooming phenomenon is avoided.

The invention relates to the technical field of polymer foam materials, in particular to a rubber-based composite foam material for a middle layer of a shoe sole and a preparation method of the rubber-based composite foam material for the middle layer of the shoe sole. Adding a foaming agent, sulfur, an accelerant N-cyclohexyl-2-benzothiazole sulfenamide and tetrabenzylthiuram disulfide, and carrying out secondary internal mixing to obtain a uniformly mixed styrene butadiene rubber / natural rubber-based rubber compound; putting the rubber compound into an open mill, and discharging bubbles; and finally, carrying out high-temperature curing foaming on the rolled rubber compound by using a plate vulcanizer. The rubber-based composite foam material obtained by the invention has the characteristics of simple process, light weight, uniform foam holes, high elasticity and high tensile strength, and is suitable for middle-layer materials of soles.

The invention discloses a preparation method of (R)-(+)-tert-butyl sulfinamide. The preparation method comprises the following steps: 1, chlorinating a compound I to obtain a compound II; 2, substituting the compound II to obtain a compound III; 3, carrying out chiral oxidation on the compound III to obtain a compound IV; and 4, carrying out N-deprotection on the compound IV to obtain a compound V. According to the method, tert-butyl mercaptan is taken as a raw material, and the target product (R)-(+)-tert-butyl sulfinamide is obtained through four-step reaction of chlorination, substitution, chiral oxidation and deprotection. The safety risk of materials used in the reaction is low, compared with a traditional route, liquid ammonia is not needed to serve as a solvent for cryogenic reaction, the equipment requirement is low, operation is easy, the three-waste amount is small, the yield is high, the product quality is high, and the method is suitable for industrial production.

The invention belongs to the technical field of high polymer materials, and particularly relates to an elastomer composite material and application thereof in shoulder cushion rubber of a tire. The elastomer composite material is prepared from 85 to 100 parts of high-end natural rubber, 0 to 15 parts of 1, 4-polybutadiene polymer, 6 to 12 parts of zinc oxide, 2 to 5 parts of stearic acid, 25 to 45 parts of carbon black, 5 to 15 parts of white carbon black, 1.1 to 1.9 parts of silane coupling agent, 3 to 10 parts of aromatic oil, 1.7 to 5.2 parts of anti-aging agent, 0.4 to 1 part of low rolling resistance modifier, 1.3 to 1.9 parts of insoluble sulfur, 0.2 to 1.2 parts of sulfenamide accelerant, 0.3 to 1.5 parts of anti-vulcanization reducing agent and 0.1 to 0.6 part of scorch retarder. The elastomer composite material provided by the invention can transfer and absorb stress concentrated on a tire shoulder part under a dynamic condition, has the performance characteristics of high tear strength and relatively low heat generation, and is suitable for tire shoulder cushion rubber of an aircraft tire.

The invention discloses a rubber-based high-wear-resistance composite groove belt and a preparation method thereof, and relates to the technical field of wear-resistant materials. Modified ethylene propylene diene monomer and modified polytetrafluoroethylene are internally mixed for 3-5 min, and a rubber matrix is obtained; the preparation method comprises the following steps: sequentially adding modified carbon black, white carbon black, modified nano zinc oxide, stearic acid and paraffin oil into a rubber matrix, uniformly mixing, standing for 16-24 hours, adding sulfur, dicumyl peroxide and N-cyclohexyl-2-benzothiazole sulfenamide, uniformly mixing, and carrying out thin passing for 3-5 times to obtain a rubber compound; and carrying out extrusion molding on the rubber compound, vulcanizing, cooling and sizing to obtain the composite groove belt.

The invention belongs to the technical field of organic synthesis, and particularly relates to a synthetic method of a methionine NH-thioimine derivative and a polypeptide compound thereof. According to the invention, methionine ester or polypeptide molecules containing methionine ester are used as raw materials, and the methionine NH-thioimine derivative stably existing in an inner salt form or a polypeptide compound containing a methionine NH-thioimine structure is obtained through oxidative amination and one-time removal of a trifluoroacetyl protecting group and ester, so as to solve the problem of S, S-dimethyl sulfoxide. The method solves the problem that methionine thioimine cannot be widely applied due to instability of an S, S '-dialkyl thioimine structure in the prior art, realizes stable preparation of an unstable thioimine structure, is simple to operate, mild in condition and good in functional group compatibility, is suitable for preparation of various polypeptide molecules containing methionine NH-thioimine, and has wide application prospects. And a key technical support is provided for construction of a pharmacophore library containing methionine NH-thioimine.

Provided are: a rubber composition which has excellent processability and is capable of maintaining a vulcanization rate within an appropriate range while giving consideration to both excellent wear resistance and flame retardancy; and a conveyor belt. A rubber composition and a conveyor belt manufactured using the same, the rubber composition containing a diene-based rubber including natural rubber and butadiene rubber, a flame retardant including chlorinated paraffin and antimony trioxide, carbon black, sulfur, a vulcanization accelerator including a sulfenamide-based vulcanization accelerator and a guanidine-based vulcanization accelerator, the content of natural rubber is 20-50 mass%, the content of butadiene rubber is 50-80 mass%, the content of chlorinated paraffin is 20-35 parts by mass and the content of antimony trioxide is 5-12 parts by mass with respect to 100 parts by mass of the diene rubber, and the mass ratio of (the total content of sulfenamide vulcanization accelerator and guanidine vulcanization accelerator) / (the content of sulfur) is 1.00 or more. And the mass ratio of (the content of guanidine vulcanization accelerator) / (the content of sulfenamide vulcanization accelerator) is 0.20-0.60.

A rubber composition for a base tread according to an embodiment includes a rubber component containing 70 mass % or more of natural rubber, a first filler that is carbon black having an N2SA of less than 60 m2 / g, a second filler that is carbon black having an N2SA of 60 m2 / g or more and / or silica, sulfur, and a sulfenamide-based vulcanization accelerator. Per 100 parts by mass of the rubber component, the amount of the first filler is 10 to 45 parts by mass, the amount of the second filler is 15 to 30 parts by mass, the total amount of the first filler and the second filler is 35 to 60 parts by mass, the amount of the sulfur is 1.6 to 3.0 parts by mass, and the amount of the sulfenamide-based vulcanization accelerator is 1.6 to 3.0 parts by mass.

The present invention provides a run-flat tire excellent in high-temperature softening inhibition, and a rubber composition from which the tire can be produced. The rubber composition contains a rubber component, a filler, a vulcanizing agent, and a vulcanization accelerator that contains a sulfenamide-based vulcanization accelerator and 1.0 to 2.0 parts by mass of tetrabenzylthiuramdisulfide based on 100 parts by mass of the rubber component, in which a mass ratio (a / b) of a content (a) of the tetrabenzylthiuramdisulfide to a content (b) of the sulfenamide-based vulcanization accelerator is 0.60 to 1.25.

The invention discloses a method for synthesizing a sulfenamide rubber vulcanization accelerator through biological enzyme catalysis, belongs to the field of biochemical engineering, and aims at providing a green and clean method for preparing the sulfenamide rubber vulcanization accelerator through a biological synthesis technology. Specifically, magnetic microsphere immobilized chloroperoxidase is used as a biocatalyst, hydrogen peroxide is used as an oxidizing agent, and a brand-new green synthesis technology of the accelerant is provided. According to the method, no salt-containing wastewater is discharged, the process is good in environmental protection property, the product quality is high, the magnetic microsphere immobilized chloroperoxidase can be recycled through an external magnetic field, and the use cost of the enzyme is reduced. Biological enzyme catalysis is an emerging green biosynthesis technology, is an important trend of sustainable development, and opens up a brand-new and environment-friendly way for organic synthesis.

The present invention addresses the problem of providing a rubber composition having improved heat resistance while suppressing blooming and ensuring tackiness. The means for solving the problem is a rubber composition containing a rubber component, two or more sulfenamide-based vulcanization accelerators, and one or more thiuram-based vulcanization accelerators, wherein the content of each of the two or more sulfenamide-based vulcanization accelerators is 3.7 parts by mass or less per 100 parts by mass of the rubber component, and the total content of the two or more sulfenamide-based vulcanization accelerators is 4 parts by mass or more per 100 parts by mass of the rubber component.

The invention relates to a tear-resistant tire carcass rubber composition. The rubber composition provided by the invention comprises the following components in parts by weight: 60-90 parts of natural rubber; 10-40 parts of styrene butadiene rubber; 30 to 70 parts of a reinforcing agent; 2-6 parts of zinc oxide; 1-3 parts of stearic acid; 1.5 to 5 parts of an anti-aging agent; 1 to 5 parts of resorcinol; 2 to 6 parts of RA-65; 2-8 parts of a plasticizer; 2 to 5 parts of insoluble sulfur; 1 to 2 parts of N-tert-butyl-2-benzothiazole sulfenamide, and 1 to 2 parts of a catalyst; and 0.1 to 1 part of 2, 2 '-dithiobis (benzothiazole). The tire carcass rubber composition has the beneficial effects that the prepared tire carcass rubber composition has good tear resistance, tensile property, rebound resilience, fatigue heat generation resistance, flex cracking resistance, adhesive property and the like, and can meet the requirements of rubber products.

The application discloses a chiral thioimine lipid compound and a preparation method and application thereof, and the preparation method comprises the following steps: stirring sulfenamide, isobutyl alcohol, MS, a metal center chiral cobalt (III) complex anion and super-dry tetrahydrofuran at-40 DEG C for 30 minutes, then adding N-iodosuccinimide, and reacting at the same temperature for 36 hours; after the reaction is completed, the reaction is quenched by using an aqueous Na2S2O3 solution, and the chiral thioimine lipid compound is obtained through separation and purification; the chiral thioimine lipid compound prepared by the application provides a robust and practical method for solving the challenging asymmetric problem in sulfur stereochemistry, and opens up a road for a new type of chiral sulfur-containing compound which has a wide application in the fields of medicine and pesticides.

The invention belongs to the field of rubber materials, and particularly relates to a durable high-resilience rubber composite material and a preparation method thereof. The rubber composite material provided by the invention is prepared from the following raw materials: natural rubber, high trans-1, 4-butadiene-isoprene copolymer rubber, high butadiene rubber, epoxy natural rubber grafted lignosulfonate, tetrapod-like zinc oxide whiskers, nano spherical zinc oxide, stearic acid, an anti-aging agent, a flame retardant, a vulcanizing agent, a first accelerant and a second accelerant. The first accelerant is selected from sulfoxide diethyldithiocarbamate, sulfoxide dibenzyl dithiocarbamate, sulfone dithiocarbamate and sulfone dibenzyl dithiocarbamate, and the second accelerant is selected from sulfoxide diethyldithiocarbamate, sulfoxide dibenzyl dithiocarbamate, sulfone dithiocarbamate and sulfone dibenzyl dithiocarbamate; the second accelerant is 4, 4 '-dithio-dimorpholine, 2-morpholinyl dithio-benzothiazole, N-oxydiethylene-2-benzothiazole sulfenamide, and dibenzoyl morpholine. The invention further discloses a preparation method of the flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame-retardant flame retardant. The rubber composite material provided by the invention has excellent high resilience and use durability.

The object of this invention is to provide a rubber composition that suppresses bloom and maintains tack while improving heat resistance. [Solution] A rubber composition comprising a rubber component, two or more sulfenamide-based vulcanization accelerators, and one or more thiram-based vulcanization accelerators, wherein the content of each of the two or more sulfenamide-based vulcanization accelerators is 3.7 parts by mass or less per 100 parts by mass of the rubber component, and the total content of the two or more sulfenamide-based vulcanization accelerators is 4 parts by mass or more per 100 parts by mass of the rubber component.

The invention relates to N-aryl or alkyl substituted sulfinamide compounds and a preparation method thereof, and relates to the technical field of organic synthesis, the preparation method comprises the following steps: under the irradiation conditions of a photocatalyst and purple light with the wavelength of 365-375 nm, a compound 1 and a compound 2 are subjected to a reaction to obtain N-aryl or alkyl substituted sulfinamide compounds 3-31. According to the invention, carboxylic acid is used as a raw material, cheap ferric trichloride is used as a catalyst, and synthesis of various visible light induced N-aryl or alkyl substituted sulfonamide compounds is realized through a strategy of ligand-to-metal charge transfer. The preparation method disclosed by the invention has the advantages of cheap and easily available raw materials, mild reaction conditions, simplicity and convenience in operation, good substrate universality, easiness in amplification and the like, and industrial production and application can be realized.

The application discloses a kind of tumor in situ catalytic production of hydrogen sulfide nano-drug and its preparation and application, belong to medical technology field.The application is with nano covalent organic framework TfpPA as main body structure, then bond hydrogen sulfide donor small molecule S-benzoyl sulfenamide is prepared to obtain nano-drug, realizes tumor in situ catalytic production H2S.Nano-drug of the application can be delivered H2S to tumor site, induces tumor ICD, while down-regulating IDO1 expression and inhibiting IDO1 activity, to trigger specific anti-tumor immune response to kill tumor, and reverse the immunosuppressive environment of tumor Sensitization immunotherapy effect, finally reach the effect of inhibiting tumor metastasis and recurrence.

The invention discloses a preparation method of a chiral thioimine compound, and belongs to the technical field of visible light catalysis and organic synthesis.The preparation method comprises the steps that a compound containing inert carbon-hydrogen bonds and a sulfenamide compound serve as raw materials, N-[(9R)-6 '-methoxyl cinchonin-9-yl]-8-quinoline sulfonamide serves as a chiral ligand, fluorobenzene serves as a solvent, and the chiral thioimine compound is prepared through a one-step reaction; under the action of a copper salt and an oxidizing agent, the copper salt, a sulfenamide compound and N-[(9R)-6 '-methoxyoctann-9-yl]-8-quinoline sulfonamide form a copper complex under the irradiation of visible light at room temperature in a protective atmosphere, the copper complex enters an excited state under the irradiation of the visible light, and the oxidizing agent is cracked through an energy transfer or single electron transfer process, so that the copper complex is obtained. The free radicals activate inert carbon-hydrogen bonds to generate alkyl free radicals, the alkyl free radicals react with sulfenamide in the copper complex, asymmetric vulcanization of the inert carbon-hydrogen bonds is achieved, and the chiral thioimine compound is obtained.

The invention discloses a rubber product low-temperature vulcanization accelerator and a preparation method thereof. The rubber product low-temperature vulcanization accelerator is prepared from ethylene-propylene diene monomer, ethylene-vinyl acetate copolymer, auxiliaries, 2-mercaptobenzothiazole zinc salt powder, sulfenamide accelerator powder, tetrabenzylthiuram disulfide accelerator powder and accelerator BG powder. According to the low-temperature vulcanization accelerator for the rubber product, various accelerators are combined and used according to corresponding proportions, the problems existing in the using process of a single accelerator are solved, proper processing parameters are adjusted according to the proportions, the production efficiency is improved, the production quality is improved, and the low-temperature vulcanization accelerator is environmentally friendly.

The present invention relates to the field of high polymer material processing, and discloses a rubber in-mold foaming lightweight sports shoe material and a preparation method thereof, the rubber in-mold foaming lightweight sports shoe material comprises the following raw material components by weight: 60-100 parts of a rubber base material, the rubber base material comprises butadiene rubber, styrene butadiene rubber and at least one special synthetic rubber; 30 to 40 parts of a reinforcing filler; 3-8 parts of a vulcanization system comprising sulfur and a sulfenamide accelerator; 5-12 parts of a composite foaming system which comprises an organic foaming agent, a foaming promoter and a nucleating agent; and 3-8 parts of an activation system comprising zinc oxide and fatty acid. A traditional multi-section type processing flow is replaced by an in-mold one-step foaming forming process, and plastifying, foaming, vulcanizing and shaping of a rubber compound are integrated and completed in a single mold procedure through sectional temperature control, pressure coupling regulation and a foaming-vulcanizing rate matching technology, so that the production period is greatly shortened, the energy consumption and equipment occupation are reduced, and the production cost is reduced. Meanwhile, a uniform and fine closed pore structure is formed by utilizing accurate foaming window control and nucleating agent induction effect.

The invention discloses anti-cutting low-heat engineering tire tread rubber based on a composite reinforcing system and a preparation method thereof, and relates to the technical field of tread rubber. According to the technical scheme, the rubber material is prepared from the following components in parts by weight: 0 to 40 parts of natural rubber, 60 to 100 parts of tear-resistant modified rubber NRX-N1, 10 to 20 parts of HT carbon silicon enhancer, 40 to 50 parts of carbon black, 3 to 5 parts of zinc oxide, 1 to 2 parts of stearic acid, 2 to 4 parts of anti-aging agent, 1 to 2 parts of microcrystalline wax, 1.5 to 2.5 parts of sulfur, 0.5 to 1 part of accelerant 833 and 0.5 to 1.5 parts of sulfenamide accelerant. According to the invention, the tear-resistant modified glue NRX-N1, the HT carbon silicon reinforcing agent and the specific alkaline accelerant 833 are innovatively and synergistically compounded, a unique'fiber reinforcement-nano reinforcement-vulcanization network optimization 'composite system is constructed, and a remarkable breakthrough in performance is realized.

The invention discloses a rubber accelerator 3-methylpiperidinyl dithio sulfenamide piperazine as well as a preparation method and application of the rubber accelerator 3-methylpiperidinyl dithio sulfenamide piperazine. The method comprises the following steps: dissolving anhydrous piperazine in absolute ethyl alcohol under a stirring condition, adding an aqueous solution containing sodium hydroxide, stirring at room temperature, cooling, adding carbon disulfide stored in absolute ethyl alcohol, stirring, adding a proper amount of 4-methylpiperidine into the system, standing, dropwise adding iodine and potassium iodide which are dissolved in deionized water, continuing to react after the addition is completed, filtering, washing, and drying to obtain the 4-methylpiperidine. And filtering with deionized water, drying and crushing. The accelerator 3-methylpiperidyl dithiosulfenamide piperazine prepared by the invention has the characteristics of high vulcanization rate of a dithiocarbamate accelerator and moderate scorch period of a sulfenamide accelerator, and can solve the problem of rapid vulcanization of ethylene propylene diene monomer.