266 results about "Nitrile" patented technology

The present application discloses a battery cell and a preparation method therefor, a battery, and an electric device. The battery cell comprises a positive electrode sheet, a negative electrode sheet, and an electrolyte. The electrolyte comprises a first non-aqueous electrolyte solution close to the positive electrode sheet and a second gel electrolyte close to the negative electrode sheet. The first non-aqueous electrolyte solution comprises a first solvent and a first lithium salt, and the first solvent comprises a nitrile-based solvent. The second gel electrolyte comprises a polymer layer and a second non-aqueous electrolyte solution accommodated in the polymer layer. The second non-aqueous electrolyte solution comprises a second solvent and a second lithium salt, and the second solvent comprises a linear monoether solvent. The battery cell has long cycle life and good rate performance.

The invention relates to the technical field of high polymer materials, in particular to a method for improving the heat resistance of melamine phenolic resin by using phthalonitrile, which comprises the following steps: uniformly mixing phthalonitrile resin powder and melamine phenolic resin powder at room temperature, and then curing and molding the uniformly mixed powder at 200-280 DEG C to obtain the heat-resistant melamine phenolic resin. The melamine phenolic aldehyde-nitrile group copolymer resin is obtained. According to the method for obtaining the melamine phenolic-nitrile resin with high thermal stability, high wear resistance and high mechanical property through copolymerization, not only can the thermal stability of the resin be greatly improved, but also the mechanical property can be enhanced, and the processing window of the melamine phenolic resin can be widened.

The invention discloses a polyarylene ether nitrile nanofiber membrane and a preparation method of the polyarylene ether nitrile nanofiber membrane through double-solvent synergistic electrostatic spinning, and relates to the field of high polymer material preparation. The method comprises the following steps: preparing two electrostatic spinning solutions with obvious volatilization rate and dissolution parameter difference, and alternately depositing two types of fibers on a collecting surface by adopting dual-channel synergistic electrostatic spinning; in the deposition and drying process, chain segments at fiber cross points are induced to swell, mutually diffuse and cure in situ to form bonding points by utilizing the poor evaporation rate of a high / low volatile solvent and the poor solvent-polymer compatibility, so that the self-densification and the structure stabilization of the nanofiber membrane are realized. The obtained nanofiber membrane has high-density in-situ bonding points and remarkably improved mechanical properties, does not need additional post-treatment such as hot pressing or solvent spraying, and is suitable for application such as interlayer reinforcement and interface toughening of composite materials. The process has continuity and controllability, and the density and mechanical properties of the membrane body can be customized by adjusting a solvent system and spinning parameters.

The invention relates to the field of polymer functional membrane materials, and particularly provides a composite sulfonated polyarylene ether nitrile sulfone proton exchange membrane and a preparation method thereof. Sulfonated poly (arylene ether nitrile sulfone) is synthesized through nucleophilic substitution reaction, and the sulfonated poly (arylene ether nitrile sulfone) and sulfonated cobalt phthalocyanine are subjected to blending and casting to form a membrane, so that the provided composite sulfonated poly (arylene ether nitrile sulfone) proton exchange resin contains a sulfonic acid structural unit, a sulfone structural unit, a polar cyano group and a phthalocyanine structural unit; the problem that an existing proton exchange membrane is low in sulfonation degree and proton conductivity can be solved, and the proton exchange membrane has the advantages of being high in structural stability, good in mechanical property, excellent in thermal stability and high in safety. The introduction of sulfonated cobalt phthalocyanine can effectively improve the internal structure of the sulfonated polyarylene ether nitrile sulfone proton exchange membrane, promote the conduction rate of water molecules in the membrane, and further improve the proton conductivity of the sulfonated polyarylene ether nitrile sulfone proton exchange membrane. In addition, the manufacturing process is green and simple, the compounding cost is low, and the application prospect is very wide.

The invention discloses a fast-charging electrolyte with wide temperature range and high voltage and application thereof.The electrolyte comprises a cosolvent, a solute and a film-forming additive, the cosolvent comprises a fluoro-carboxylic ester compound and a nitrile compound, the fluoro-carboxylic ester compound and the nitrile compound both have wide liquid range and strong oxidation resistance, and the solute and the film-forming additive form a film. And a foundation is laid for wide-temperature and high-voltage application of the electrolyte. The fluorocarboxylate compound enables the electrolyte to have obvious weak solvation characteristics, and promotes rapid desolvation of lithium ions at low temperature and high rate; the nitrile compound has a high dielectric constant, so that the conductivity of the electrolyte is improved. And the two can exert respective advantages and show a synergistic effect, so that the multiplying power and the cycle performance of the lithium ion battery under wide temperature range and high voltage are greatly improved.

Provided in the present invention are a functionalized monomer, a raw material composition containing same for hydrogenated nitrile butadiene rubber, and a preparation method for hydrogenated nitrile butadiene rubber. In the functionalized monomer, a hydroxyl group, an ether group, an ester group and a long-chain alkyl branched structure are integrated into one macromolecular chain; and the functionalized monomer subsequently serves as a raw material monomer for preparing hydrogenated nitrile butadiene rubber, which can obtain hydrogenated nitrile butadiene rubber having better cold resistance and oil resistance.

One embodiment of the nonlinear light-absorbing material disclosed herein comprises a compound represented by the following formula (1) as its main component. In formula (1), R 1 ~R 10 Each group can be a hydrogen atom, halogen atom, saturated hydrocarbon group, haloalkyl group, unsaturated hydrocarbon group, hydroxyl group, carboxyl group, alkoxycarbonyl group, aldehyde group, acyl group, amide group, nitrile group, alkoxy group, acyloxy group, thiol group, alkylthio group, sulfonic acid group, acylthio group, alkylsulfonyl group, sulfonamide group, primary amino group, secondary amino group, tertiary amino group, or nitro group.

The application discloses a kind of flame-retardant polyamide composite material and its preparation method and application, belong to polymer material technical field, the flame-retardant polyamide composite material, including the following weight parts of component: 48~82 parts nylon resin, 3~9 parts carboxylated polyarylether nitrile, 24~40 parts bromine class flame retardant, 54~72 parts glass fiber.The carboxylated polyarylether nitrile of the present application is added to nylon resin, carboxylated polyarylether nitrile and resin and flame retardant have better compatibility, not easy to be decomposed when material is heated and burns, the carboxyl group of the carboxylated polyarylether nitrile and the end amino group of nylon molecular chain react, form stable chemical bond, to effectively improve the thermal stability of composite material, protect material in a certain range from the influence of external temperature, can significantly improve the mechanical strength and thermal stability of polyamide composite material at high temperature, improve the high-temperature aging strength retention rate of composite material.

The invention provides a method for synthesizing 6-aminocapronitrile from caprolactam. The method comprises the following steps: a gasification device is sequentially provided with a uniform distribution part, an efficient dispersion part, a high-temperature gasification part and an in-situ separation part from top to bottom; liquid-phase caprolactam is injected from the top end of the gasification device, and ammonia gas is injected through the efficient dispersion part; in the efficient dispersion part, liquid-phase caprolactam is broken in a first circular tube nest under the shearing action of gravity and ammonia gas to form liquid drops, and after high-temperature gasification, a gas phase is output from the side part of the gasification device, then enters the reactor filled with the monolithic catalyst from the bottom of the reactor, reacts through the monolithic catalyst and is output from the top of the reactor. According to the invention, caprolactam can be efficiently gasified, coking is not easy to generate, the retention time of a gas-phase reactant in the reactor can be accurately controlled, the reaction efficiency is greatly improved, the discharge amount of wastes in the production process of hexamethylenediamine is reduced, the cost is reduced, the economic benefit is improved, and a guarantee is provided for green, environment-friendly and safe production.

The application discloses a microorganism-loaded activated carbon composition, a nitrile-containing wastewater pretreatment process and device and the device, and belongs to the technical field of microorganism culture and wastewater treatment device. In view of the technical problems that the electric conduction capacity and biodegradation efficiency of biological filler are poor when an electric catalysis internal circulation aeration biological filter is used for pretreatment of nitrile-containing wastewater in the prior art, and only the biodegradability of wastewater is improved, and the organic nitrile cannot be converted into available substrate, the application provides a microorganism-loaded activated carbon composition, which comprises activated carbon loaded with Shewanella oneidensis or Rhodococcus globerulus at a mass ratio of 1:2 to 1:3, and the amount of the activated carbon loaded with Shewanella oneidensis or Rhodococcus globerulus is 10 9 ~ 10 10 CFU / g, and the composition has good electric conduction capacity and biodegradation efficiency. The application further provides a nitrile-containing wastewater pretreatment process and device, which comprises the following steps: introducing nitrile-containing wastewater into the device body, and sequentially using electric treatment and a micro-nano bubble generator for treatment, and has the advantages of low power consumption, low treatment cost, convenient and safe operation, green and environment-friendly process and the like.

1. The name of the design product: packaging bag (purple food-grade child nitrile glove). 2. The use of the design product: used for packaging of glove products. 3. The design points of the design product: in the combination of shape and pattern. 4. The picture or photo that best indicates the design points: front view. 5. The design product is a thin product, and the left view, right view, top view and bottom view are omitted.

The present invention relates to a process for the production of specialty mercaptans from C4 oligomerization product. The oligomer product from the commercial C4 oligomerization process is separated in desired fractions of C8 and C12 olefins and these streams are further used as feed stock for the production of the specialty mercaptans such as tert octyl mercaptan (TOM) & tert dodecyl mercaptan (TDM). These fractionated oligomer stream (C8 and C12) from the C4 oligomerization process reacts with hydrogen sulfide in presence of pretreated cation exchange resin catalyst using appropriate inhibitors such as amine precursors, nitriles and metals to produce respective sulfur compounds tert-octyl mercaptan (TOM) and tert dodecyl mercaptan (TDM).

Provided is a binder composition for a power storage device, which is capable of producing a power storage device electrode having excellent surface state, adhesion, and ion conductivity, and which is capable of improving the cycle life characteristics of a power storage device. This binder composition for an electricity storage device contains a polymer (A), a nonionic surfactant (B), and a liquid medium (C), and the polymer (A) contains an alpha, beta-unsaturated compound derived from an alpha, beta-unsaturated compound when the total of repeating units contained in the polymer (A) is taken as 100 mass%. The polymer (A) contains 1-50 mass% of a repeating unit (a1) derived from a [beta]-unsaturated nitrile compound and 40-80 mass% of a repeating unit (a2) derived from an unsaturated carboxylic acid ester, and the content ratio of the nonionic surfactant (B) is 0.1-10 parts by mass per 100 parts by mass of the polymer (A). The liquid medium (C) is at least one substance selected from the group consisting of aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, ketones, esters, ethers, glycol ethers, lactams, lactones, and amides.

The invention provides a preparation method of lithium hexafluorophosphate with low fluorine emission, and relates to the technical field of preparation of lithium hexafluorophosphate, the preparation method comprises the following steps: by taking anhydrous lithium fluoride as a lithium source in a closed reaction kettle, adding a carbonic ester and nitrile mixed organic solvent system, and adding ammonium pentafluorophosphate or an organic complex thereof as a phosphorus-containing precursor, in-situ generation and directional reaction of the fluorine-phosphorus-containing active substance are realized by controlling the slow release rate of the precursor. The solid weakly-alkaline fluorine trapping agent is arranged in the system and can dynamically adsorb or complex generated hydrofluoric acid and other fluorine-containing byproducts, so that fluorine dissipation is reduced. The reaction process is divided into three continuous windows of low-activity pre-reaction, directional main reaction and activity stabilization by regulating and controlling the reaction temperature, the stirring rate and the solvent polarity in stages, so that controllable reaction and uniform conversion of fluorine-containing phosphorus substances are ensured. And after the reaction is finished, gradually carrying out cooling crystallization, solid-liquid separation and drying to obtain a high-purity lithium hexafluorophosphate product. Therefore, generation and emission of hydrofluoric acid are remarkably reduced.

This invention relates to the field of rubber materials, specifically to a high-temperature resistant and crack-resistant rubber material and its preparation method. The rubber material, by weight, comprises the following components: 100 parts rubber matrix, 40-80 parts composite reinforcing filler, 3-10 parts crosslinking agent, 5-15 parts antioxidant, 3-8 parts vulcanization activator, and 2-8 parts processing aid; wherein the rubber matrix comprises hydrogenated nitrile butadiene rubber and ethylene propylene diene monomer (EPDM) rubber, with a weight ratio of 60-80:20-40. The rubber material prepared by this invention, when used as a shoe sole, meets the comfort and durability requirements of daily wear, and is also suitable for the higher requirements of abrasion resistance and damage resistance in light outdoor and work scenarios. It solves the problems of limited application scenarios and single performance of existing shoe sole materials, significantly improving the market competitiveness of shoe sole products, and has extremely high practical value and market application prospects.

The invention relates to the field of polymer chemistry, in particular to the production of a rubber mixture resistant to aggressive liquid environments. The claimed rubber mixture resistant to aggressive liquid environments is based on butadiene-nitrile and ethylene-propylene rubbers and contains stearic acid as a softener, zinc oxide as an activator, captax and thiuram as an accelerator, sulfur as a vulcanizer and technical carbon P324 as a filler, and according to the invention, additionally contains adipic acid and ED20 epoxy resin in the following ratio of components per 100 parts by mass of BNK / EPDM, kh: Butadiene-nitrile rubber (SKN-40) 60 Ethylene-propylene rubber (EPDM) 40 Sterain (softener) 2.0 Adipic acid 1.0-3.0 ED-20 2.6 Zinc oxide (activator) 5.0 Captax (accelerator) 1.2 Sulfur (vulcanizing agent) 1.8 Filler P324 (technical carbon) 45 Thiuram (TMTD) 0.8

This invention belongs to the field of polymer protective materials technology, and discloses a nitrile glove modified with bio-based itaconic acid ester rubber latex and compounded with an antibacterial agent, as well as its preparation method. The glove uses carboxylated nitrile butadiene latex as the matrix, introduces a bio-based itaconic acid ester rubber latex pretreated with a silane coupling agent as a reactive interfacial compatibility component, and uses nano-silver-zinc composite particles and reactive quaternized chitosan to form an immobilized composite antibacterial phase. The glove is prepared through blending, impregnation molding, surface immobilization treatment, gradient vulcanization, and post-treatment. The resulting glove possesses excellent flexibility, low-temperature embrittlement resistance, oil resistance, and long-lasting antibacterial properties, and the antibacterial components are not easily migrated or detached, making it suitable for food processing, medical auxiliary protection, and low-temperature operations.

The invention discloses a preparation method of nitrile rubber, which comprises the following steps: (1) adding water, a vinyl nitrile monomer and an ionizable initiator into a polymerization kettle, stirring, heating, and cooling after the reaction is finished to obtain a reaction compound with an emulsification effect; (2) in the polymerization reaction, adding water, a cosolvent and the reaction compound obtained in the step (1), introducing nitrogen for replacement, then adding a deoxidant, a chain transfer agent with a surface activity function, conjugated diene and a vinyl nitrile monomer, heating, adding an ionizable initiator, and measuring the conversion rate of the reaction monomer in each period of time; and when the conversion rate is greater than 70%, adding a terminator and an anti-aging agent, stirring, degassing, adding a coagulant, flushing and drying to obtain the nitrile rubber. According to the preparation method, soap-free polymerization of nitrile rubber can be realized, the complexity of a post-treatment process is reduced, the environmental friendliness and economic benefits are improved, and the problem that the cleanliness of a product is difficult to improve is solved.

A process for the hydrocyanation of an organic compound containing at least one olefinic group comprising reacting the organic compound with hydrogen cyanide in the presence of a catalyst complex comprising at least one transition metal and a phosphorus-containing ligand comprising a calixarene backbone and at least two aryl phosphite or aryl phosphoramidite groups chemically bonded to the backbone.

The application belongs to the field of medicine synthesis, and particularly relates to a preparation method of 2,2-disubstituted-4-phenyl butyronitrile derivative, which comprises the following steps: mixing phenetole, nitrile and alkali agent in a molar ratio of 1.0:3.5-4.5:2.5-3.5 in aprotic solvent with a dielectric constant (epsilon) less than 20 at 60-100 DEG C for 12-30 hours; after the reaction is completed, the cooled reaction system is adjusted to be neutral, and the product is collected and purified. The phenetole is subjected to elimination reaction under alkaline conditions to generate a carbon-carbon double bond, and is subjected to addition reaction with the nitrile to obtain the 2,2-disubstituted-4-phenyl butyronitrile derivative. Meanwhile, the raw materials used are low in price and easy to synthesize, the cost is greatly reduced, the industrialization prospect is wider, and the operation is simple, so that the process technology has more competitive value.

This invention discloses a method for synthesizing monosubstituted sulfonylamidinium compounds. In an air atmosphere, using commercially available primary sulfonamides and nitriles as substrates, inexpensive trifluoromethanesulfonic anhydride as a catalyst, and trifluorotoluene as a solvent, the product can be efficiently obtained. Compared with existing technologies, this method has the following advantages: inexpensive and readily available reactants; no need for cumbersome synthesis methods; simple reaction system; high atom economy with 100% atom utilization; broad substrate range, compatible with various functional groups; and simple operation.

The application belongs to the technical field of fine chemical intermediates production, and particularly relates to a method for preparing 6-amino capro nitrile, which takes caprolactam and liquid ammonia as raw materials, and first dissolves the caprolactam in a liquid ammonia dissolving tank to obtain a uniform solution, then sends the solution into a static mixing and heating unit for step-by-step vaporization and gradient temperature rise, and then sends the solution into an ammonolysis reactor to generate a catalytic ammonolysis reaction, and finally obtains 6-amino capro nitrile after cooling, gas-liquid separation and rectification of the reaction product; the method uses liquid ammonia as a solvent and a raw material, cancels a high-temperature heating process of the caprolactam alone, effectively inhibits polymerization and coking, greatly reduces the ammonia capro material amount ratio, reduces energy consumption, improves production capacity, and can directly use crude caprolactam containing oligomers, so that raw material utilization and industrialization adaptability are significantly improved.

The application discloses a method for preparing hexamethylene diamine by hydrogenation of adiponitrile, which comprises the following steps: preparing a reaction solution by hydrogenation reaction of adiponitrile, and preparing the hexamethylene diamine by post-treatment; wherein the hydrogenation reaction system further comprises an adsorbent and mother liquor generated in the post-treatment process. By returning the mother liquor containing nitrogen heteroheptacycle Schiff base, amide and other impurities of the hydrogenation ammonia by-product to the reactor and adding the adsorbent in the reaction, the content of the reaction by-product AMCPA can be reduced to below 5 mg / kg, and the polarographic value of the hexamethylene diamine product is less than or equal to 20 mmol IB / t-HMD, compared with the production process without recycling the mother liquor according to the application.

This invention provides a carboxylated nitrile butadiene latex, its preparation method, and its application. The carboxylated nitrile butadiene latex, by mass parts, is composed of the following raw materials: butadiene, acrylonitrile, methacrylic acid, emulsifier, dispersant, electrolyte, ferrous sulfate, reducing agent, molecular weight regulator, oxygen scavenger, initiator, and demineralized water. The emulsifier is a mixture of anionic and cationic emulsifiers; the anionic emulsifier is sodium dodecyl sulfate, and the cationic emulsifier is a glycosyl gemini cationic surfactant. The mass ratio of the anionic emulsifier to the cationic emulsifier is 1:0.05–0.1. This carboxylated nitrile butadiene latex not only has low gel content and high mechanical stability, but its preparation method is also simple and controllable, making it easy for industrial production.

The invention relates to the technical field of rubber materials, in particular to a high-temperature-resistant and high-hardness rubber ring and a preparation method thereof, and the high-temperature-resistant and high-hardness rubber ring comprises the following raw materials in parts by mass: 30-50 parts of hydrogenated nitrile rubber, 30-35 parts of a composite reinforcing aid, 3-5 parts of a filler, 5-15 parts of ethylene propylene diene monomer, 5-15 parts of a plasticizer, 2-6 parts of an active agent, 0.5-1.5 parts of a vulcanizing agent, 0.5-1.5 parts of an accelerant, 0.1-0.6 part of a lubricant and 0.3-0.4 part of an anti-aging agent. The rubber ring disclosed by the invention has relatively good hardness, ageing resistance, flame retardance and wear resistance.

The application belongs to the technical field of chemical separation, and particularly relates to a device and method for recycling and regenerating extractants in a hexafluorobutadiene extractive distillation system. The application adopts a normal-pressure regeneration system for the cyclic regeneration of nitrile, ketone, organic amine and alcohol ester extractants. The used extractants are sequentially passed through a primary separation tower, a first separation tower, a second separation tower and a third separation tower, and acid, water and light and heavy component impurities are effectively removed at normal pressure, so that qualified regenerated extractants are finally obtained and directly returned to the extractive distillation tower for cyclic use. The application optimizes the process flow, reduces the energy consumption of equipment, and does not need to continuously add extractants, so that efficient cyclic utilization of the extractants in the hexafluorobutadiene purification process is realized, and the application is particularly suitable for large-scale industrial production of electronic-grade hexafluorobutadiene.

The invention relates to the field of battery electrolytes, in particular to an additive, an electrolyte containing the additive and a battery containing the electrolyte, the additive is trimethylsiloxy nitrile, and the electrolyte comprises an organic solvent, an electrolyte lithium salt and an additive, the additive in the electrolyte comprises one or more of trimethylsiloxy nitrile, fluoroethylene carbonate, ethylene sulfate, vinylene carbonate and 1, 3-propane sultone; the electrolyte lithium salt is a mixed lithium salt of lithium hexafluorophosphate and lithium difluorophosphate; the organic solvent comprises one or more of carbonic ester, carboxylic ester, fluoro-carbonic ester and fluoro-carboxylic ester. According to the additive, the electrolyte containing the additive and the battery containing the electrolyte, the cycle performance and the high-temperature performance of the ternary high-nickel lithium ion battery can be improved.

The application provides a method and device for continuously synthesizing sebacic nitrile from sebacic acid. The method comprises continuously reacting in n reaction kettles, wherein raw materials containing sebacic acid, ammonia and a catalyst are introduced into a first reaction kettle for reaction, and the product of an (n-1)th reaction kettle is introduced into an nth reaction kettle for reaction, and n is greater than or equal to 2. The method can effectively improve the product quality of sebacic nitrile, greatly reduce energy consumption, and has high yield, few impurities, light color and high quality.

Provided is a catalyst for a gas-phase catalytic oxidation reaction, containing: a metal oxide containing at least Mo, V and Sb; and Sb2O4.