402 results about "Benzole" patented technology

The invention discloses a modified polysiloxane coating for a stainless steel pot and a preparation method of the modified polysiloxane coating, and belongs to the technical field of polysiloxane coatings. Comprising the following raw materials in parts by weight: 60-70 parts of hydroxyl polydimethylsiloxane, 20-30 parts of acrylate resin, 15-20 parts of ethanol, 25-30 parts of deionized water, 6-18 parts of modified nano aluminum oxide, 2-4 parts of a friction reducing agent, 0.2-0.4 part of benzophenone and 1-3 parts of a flatting agent. Polysiloxane is used as a main component, so that the coating is endowed with excellent heat resistance; wherein the antifriction agent can improve the wear resistance of the coating; wherein the leveling agent improves the surface flatness of the coating; wherein the modified nano aluminum oxide has good compatibility with polysiloxane, is not easy to agglomerate in the coating, has good dispersity, and can greatly improve the heat resistance, hardness and easy-to-clean property of the coating; the performance is stable and the service life is long; the method has important application value in the technical field of polysiloxane coatings.

The invention discloses a flame-retardant insulating powder coating for a new energy automobile and a preparation method of the flame-retardant insulating powder coating, and belongs to the technical field of coatings. The flame-retardant insulating powder coating for the new energy automobile is prepared from the following raw material components in parts by mass: 380 to 384 parts of epoxy resin, 56 to 58 parts of a toughening agent, 5 to 10 parts of modified flame-retardant filler, 100 to 101 parts of a composite curing agent, 5 parts of a flatting agent, 1 part of benzoin and 0.7 part of an accelerant, the toughening agent is obtained by carrying out a reaction on an isophorone diisocyanate tripolymer, 4-bromophenol and N-p-coumaroyl tyramine; the modified flame-retardant filler is obtained by firstly wrapping hexagonal boron nitride with polydopamine and then modifying with a silane coupling agent; the silane coupling agent is obtained by combining 4-benzonitrile oxygen butyl trimethoxy silane and a sulfydryl silane coupling agent; and the composite curing agent is obtained by combining 4, 4-diaminodiphenylmethane and amino-sulfydryl functional organic polysiloxane.

The invention belongs to the technical field of coatings, and relates to a polysiloxane epoxy hybrid environment-friendly coating and a preparation method thereof. The coating belongs to an environment-friendly solvent type coating with low VOC content, modified epoxy resin is adopted as a base, auxiliaries such as a film-forming agent and a dispersing agent are added, and benzophenone and tertiary amine composite photoinitiator is supplemented, so that the prepared coating has good corrosion resistance, high temperature resistance and the like, and the coating can quickly form a film at normal temperature and under the UV illumination condition, shortens the curing period, and is suitable for large-scale popularization and application. The emission of VOC (volatile organic compounds) is reduced.

The invention relates to the technical field of reaction kettles, and discloses a reaction kettle device for synthesizing benzohydroxamic acid, the reaction kettle device comprises a reaction kettle body and a stirring structure arranged at the top of the reaction kettle body, a discharging pipe is arranged at the discharging end of the reaction kettle body, and supporting legs are arranged on the outer wall of the bottom of the reaction kettle body; three mounting plates distributed in an annular array are fixedly mounted on the inner wall of the reaction kettle body, a driving screw rod is rotationally mounted on the top surface of each mounting plate, the top end of each driving screw rod penetrates through the top surface of the reaction kettle body, and a guide frame is in threaded connection with the outer wall of each driving screw rod; when the feeding cylinder rotates, the transmission shaft is in intermittent contact with the protruding block, negative pressure adsorption and quantitative discharge of auxiliary materials are achieved through vertical sliding of the piston plate and cooperation of the one-way valve, it is guaranteed that raw materials can be accurately injected according to needs through the structural design, errors caused by manual control adding are avoided, the accuracy of the reaction proportion is guaranteed, and the production efficiency is improved. And the product quality stability can be improved.

A polyolefin formulation comprising (A) a polyolefin polymer: x weight percent (wt %) of (B) an alkoxyphenol compound of formula (I); and y wt % of (C) a benzophenone compound of formula (II) as described in the specification: wherein y is from 1 to 8 wt %; wherein x is from 0.1 to 3.0 wt %, with the proviso that x is less than 0.5y; and wherein wt % are based on total weight of the polyolefin formulation. Also crosslinked products made therefrom; methods of making and using same; and articles containing same.

The invention provides a preparation method and application of a low-energy-consumption polyphenylene sulfide (PPS) melt-blown non-woven proton exchange membrane, and belongs to the technical field of preparation of fuel cells and proton exchange membranes. A solid solvent (benzophenone, benzoin, stearic acid, polyvinyl alcohol, beeswax and the like) is introduced into polyphenylene sulfide melt-blowing, so that the processing temperature of polyphenylene sulfide melt-blowing is effectively reduced, and the coefficient of variation of a polyphenylene sulfide melt-blown non-woven fabric material is remarkably reduced; high-uniformity polyphenylene sulfide melt-blown non-woven fabric is used as a substrate supporting layer, proton exchange groups are obtained through sulfonation hydrophilic modification, then a nanofiller capable of promoting and accelerating proton conduction is uniformly dispersed into a proper sulfonated polymer membrane casting solution, and the functionalized modified polyphenylene sulfide melt-blown non-woven fabric is subjected to casting coating, so that the sulfonated polymer membrane is obtained. And finally hot-pressing and strengthening to form the film. The fiber diameter, the capillary flow aperture, the variable coefficient and the mechanical property of the functional modified polyphenylene sulfide melt-blown non-woven fabric can be adjusted by optimizing the doping content of the solid solvent. In addition, the proton conductivity, methanol permeability and other properties of the proton exchange membrane can be improved by optimizing the variety and doping amount of the nanofiller. The polyphenylene sulfide melt-blown non-woven proton exchange membrane disclosed by the invention is low in raw material price, simple in process, green and environment-friendly, and easy for large-scale low-cost production.

The invention belongs to the technical field of building materials, and discloses a bio-based nylon thermal insulation material and a preparation method thereof, the bio-based nylon thermal insulation material comprises the following raw materials by weight: 75-85 parts of PA56, 25-35 parts of poly (p-phenylene terephthalamide), 20-30 parts of a modified filler, 1-2 parts of color masterbatch, 0.5-1.5 parts of a lubricant, 0.5-1.2 parts of an anti-aging agent, and 0.1-0.2 part of a cross-linking agent. According to the technical scheme, the modified filler containing the glass fibers, the hollow glass beads and the rich fluorine atoms has good compatibility with other raw materials, and has chemical action with the anti-aging agent containing a hindered phenol structure, a hindered amine structure and a benzophenone structure, so that the anti-aging performance of the modified filler is greatly improved, and the service life of the anti-aging agent is prolonged. The modified filler and the anti-aging agent can be highly dispersed and stably exist in the nylon heat-insulating material, play a role to the greatest extent, endow the nylon heat-insulating material with excellent and stable mechanical property, hydrophobic property, anti-aging property and the like, and greatly prolong the service life of the nylon heat-insulating material.

The invention relates to the technical field of high polymer materials, and discloses a low-VOC (volatile organic compound) polypropylene composite material and a preparation process thereof, the low-VOC polypropylene composite material comprises the following raw materials: polypropylene, maleic anhydride grafted polypropylene, fluorenyl silicone oil, benzophenone coated talcum powder, activated carbon, an antioxidant, a plasticizer and a lubricant; the interface bonding force between a siloxane long-chain flexible structure and a polypropylene matrix material is improved by preparing fluorenyl silicone oil, the thermal stability of the composite material is effectively improved by combining fluorene rings, thermal decomposition products are reduced, VOC components are physically adsorbed and captured through a multilevel porous structure of activated carbon, VOC volatilization can be effectively reduced, and the environmental protection capacity of the composite material can be enhanced. Meanwhile, benzophenone-coated talcum powder is added into the polypropylene composite material matrix, so that the wear resistance and ultraviolet resistance of the polypropylene composite material matrix are enhanced, and the service life of the polypropylene composite material is effectively prolonged.

The invention relates to a method for synthesizing benzyl sulfoxide through selective oxidation of benzyl sulfide, belongs to the technical field of fine organic synthesis, and can overcome the defects of complex synthesis process steps, complex catalyst preparation, long reaction time and the like in the existing benzyl sulfoxide synthesis. Meanwhile, tert-butyl alcohol is introduced as an inhibitor to regulate and control the reaction process, ethyl acetate is used as a reaction solvent, and benzyl sulfoxide is prepared through selective oxidation. The innovative process has the advantages of mild process conditions, environmental friendliness, no need of adding any catalyst, high product yield and the like. The method shows huge potential and value in the field of industrial application.

The invention discloses modified silicon dioxide microspheres for high performance liquid chromatography and a preparation method of the modified silicon dioxide microspheres, and relates to the technical field of chromatographic packing. When the modified silicon dioxide microspheres for the high performance liquid chromatography are prepared, firstly, (perfluorohexyl) benzene reacts with isophthaloyl dichloride to prepare a perfluorohexyl benzophenone compound; the preparation method comprises the following steps: reacting a perfluorohexyl benzophenone compound with hydrazine hydrate to prepare a perfluorohexyl hydrazone compound; carrying out catalytic decomposition on the perfluorohexyl hydrazone compound to prepare a hydrophobic modified diazo compound; preparing monodispersed non-porous silicon dioxide microspheres by using a sol-gel method; modifying the non-porous silicon dioxide microspheres by an etching template method to prepare mesoporous core-shell silicon dioxide microspheres; and reacting the mesoporous core-shell silicon dioxide microspheres with a hydrophobic modified diazo compound to prepare the modified silicon dioxide microspheres for high performance liquid chromatography. The prepared modified silicon dioxide microspheres for high performance liquid chromatography have the advantages of monodisperse particle size, large specific surface area, small back pressure and high column efficiency.

The invention discloses an anti-ultraviolet automobile window film and a preparation method thereof, and relates to the field of high polymer materials. When the anti-ultraviolet automobile window film is prepared, methylcyclotetrasiloxane, octamethylcyclotetrasiloxane, 3-glycidyl propyl (dimethoxy) methylsilane and 1, 3-bis (3-aminopropyl)-1, 1, 3, 3-tetramethyldisiloxane are subjected to a reaction, and modified polysiloxane is prepared; the preparation method comprises the following steps: reacting benzo [1, 2-d: 5, 4-d '] bis (oxazole)-2, 6-dithiol with 4-aminobenzoyl chloride to prepare a modified ultraviolet absorbent; isophorone diisocyanate, polytetrahydrofuran ether glycol, the modified polypyrrole particles, the modified polysiloxane and the modified ultraviolet absorbent are subjected to a reaction, and the reaction product is spread in a mold. The anti-ultraviolet automobile window film prepared by the invention has good anti-ultraviolet, heat-insulating, flame-retardant and anti-aging properties and good mechanical properties.

The invention discloses an anti-aging and anti-yellowing foaming polyester material and a preparation method thereof, and relates to the technical field of polyester materials. The anti-aging and yellowing-resistant foamed polyester material is prepared from the following raw material components in parts by weight: 3 to 5 parts of anti-ultraviolet SEBS (Styrene-Ethylene-Butylene-Styrene), 3.6 to 7 parts of triethylamine, 4 to 6 parts of flame-retardant and wear-resistant filler, 100 parts of TPEE (Thermoplastic Polyether Ester Ether), 0.9 to 1.1 parts of polymer wax and 0.6 to 0.8 part of foaming agent, the anti-ultraviolet SEBS is obtained by copolymerizing and grafting an unsaturated benzophenone ultraviolet absorbent, SEBS and maleic anhydride; the flame-retardant and wear-resistant filler is obtained by mixing and reacting carboxylated nano silicon dioxide, pentaerythritol and phosphorus oxychloride; the polymer wax adopts EVA (Ethylene Vinyl Acetate) wax; azodicarbonamide is adopted as the foaming agent; the anti-aging and anti-yellowing foaming polyester material disclosed by the invention is relatively good in mechanical property, anti-aging property, flame retardant property and compression resistance.

The invention discloses benzoyl galanthamine hydrochloride and a preparation method thereof.The preparation method comprises the steps that sodium carbonate, benzoyl chloride and the like which are low in price and easy to obtain serve as raw materials and react in DCM at the normal temperature to obtain a benzoyl galanthamine crude product, then the benzoyl galanthamine crude product is converted into hydrochloride, recrystallization and purification are conducted, and the target product benzoyl galanthamine hydrochloride is obtained; the method has the advantages of mild process reaction conditions and high yield, effectively reduces the synthesis cost, avoids the use of dangerous and toxic reagents, and effectively reduces the generation of industrial three wastes; the process is simple, operation is convenient, raw materials are cheap and easy to obtain, and large-scale industrial production is facilitated.

The invention belongs to the technical field of preparation of composite membranes, and discloses a preparation method of a multipurpose nano-material composite membrane, which comprises the following steps: firstly, carrying out preliminary grafting modification on cellulose nanofibers by using a benzophenone derivative to improve the dispersity, and then introducing a preset functional group to carry out deep modification to obtain a modified cellulose nanofiber composite membrane; the mass ratio of the cellulose nanofiber to the benzophenone derivative is (1: 0.05)-(1: 0.2); according to the invention, the dispersity of the nano material and the grafting efficiency of the functional group are effectively improved by finely regulating and controlling the modification process of the nano material, so that the composite film further enhances the multiple functional characteristics of antibacterial property, antifouling property, ultraviolet shielding property and the like on the basis of keeping the original excellent properties; and meanwhile, the construction of the functional gradient ensures that the composite film can exert the optimal performance in different application scenes, interface defects are not easily generated among the functional layers, and the overall performance is not influenced.

The efficient storage tank for benzoyl chloride comprises a tank body, a rubber plug is connected to a feeding port in the top of the tank body in a clamped mode, a rotary joint is installed at a discharging port in the top of the tank body, an output pipe is arranged in the tank body, the top end of the output pipe is connected with the rotary joint, a corrugated telescopic pipe is connected to the rubber plug, and the corrugated telescopic pipe is connected with a hydraulic cylinder. The top end of the corrugated telescopic pipe is connected with the rotating connector through a communicating pipe, the rubber plug is hollow, the bottom of the rubber plug is open, and the rubber plug is communicated with the interior of the output pipe through the corrugated telescopic pipe, the communicating pipe and the rotating connector. The rubber plug, the corrugated telescopic pipe, the communicating pipe, the rotating joint and the output pipe are bridged between the two tank bodies, so that the adjacent tank bodies are communicated with each other, and a plurality of tank bodies are kept to be sequentially arranged and communicated with each other during filling operation; and the operation of filling a plurality of tank bodies can be realized under the condition that the initial tank body position is not moved, so that the tank body filling efficiency is effectively improved.

The invention discloses a preparation method of a low-chlorine composite environment-friendly coal transportation anti-freezing agent, and belongs to the technical field of anti-freezing solutions. The anti-freezing solution is used for solving the technical problems of complex components and poor anti-freezing and metal corrosion resistance of the anti-freezing solution for coal transportation in the prior art. The preparation method of the low-chlorine composite environment-friendly coal transportation anti-freezing agent comprises the following step: uniformly mixing the compound pour point depressant, the modified corrosion inhibitor, the thickening stabilizer and the industrial water to prepare the low-chlorine composite environment-friendly coal transportation anti-freezing agent. The compound pour point depressant comprises an organic pour point depressant and an inorganic pour point depressant; the organic pour point depressant is obtained by reacting unsaturated azole, sodium methallyl sulfonate and fumaric acid; the unsaturated nitrogen is obtained by reaction of an intermediate B and benzaldehyde, and the intermediate B is obtained by reaction of triazole and ethyl chloroacetate; the modified corrosion inhibitor is obtained by carrying out a reaction on potassium thiocyanate, benzoyl chloride and chitosan vanillin Schiff base. The anti-freezing solution prepared by the invention has the advantages of moderate fluidity, good metal corrosion resistance and good anti-freezing performance.

The invention discloses a transparent polyurethane elastomer and a preparation method thereof, and relates to the technical field of polyurethane elastomers, the preparation method comprises the following steps: carrying out vacuum dehydration on polytetrahydrofuran ether glycol-2000 and polytetrahydrofuran ether glycol-1000 for later use; the preparation method comprises the following steps: preheating a reaction container, adding isophorone diisocyanate and benzoyl chloride, uniformly stirring, adding polytetrahydrofuran ether glycol-2000 and polytetrahydrofuran ether glycol-1000, and carrying out heat preservation reaction to obtain a polyurethane prepolymer; uniformly stirring polyether polyol N330, a chain extender, dibutyltin dilaurate, silicone oil, a defoaming agent, an antioxidant and an ultraviolet light absorber, carrying out vacuum degassing, adding into the polyurethane prepolymer, uniformly stirring, pouring into a mold, curing, molding and demolding to obtain the transparent polyurethane elastomer.

The invention provides a preparation method of a flexible hydrogen delivery pipe, and relates to the field of flexible hydrogen delivery pipe manufacturing, and the flexible hydrogen delivery pipe comprises the following raw material components: polytrifluorochloroethylene, nylon 11, polyvinylidene fluoride, a micro-nano carbon material, polyethyleneimine, a compatilizer, a cross-linking agent, an antioxidant, a dispersing agent and a light stabilizer, the cross-linking agent is a thermoplastic polyurethane copolymer, the micro-nano carbon material comprises graphene oxide and graphene nanoplatelets, the dispersing agent is one of EBS, EB-G and PE wax, the antioxidant is antioxidant 1076, and the light stabilizer is one of benzophenone and 2-hydroxybenzoate; the gas barrier material has the advantages of being good in gas barrier property and high in mechanical property on the whole.

The invention relates to the technical field of electronic pouring sealants, and discloses a room temperature / UV dual-curing pouring sealant and a preparation method thereof.The room temperature / UV dual-curing pouring sealant is prepared by sequentially feeding acrylic monoester, tripropyl alcohol diacrylate and acrylic acid, evenly stirring, continuing to add 1-hydroxy-cyclohexyl-phenyl ketone and benzophenone, and stirring to obtain a solution A; and continuing to add silane modified polyurethane, modified benzoxazine and epoxy acrylic acid into the solution A, and stirring in vacuum to obtain the room temperature / UV dual-curing pouring sealant. In the stirring process, a terminal hydroxyl group in the silane modified polyurethane, a hydroxyl group in the modified benzoxazine and an epoxy group in the epoxy acrylic acid are subjected to a ring-opening reaction and are cross-linked with one another to form a molecular cross-linked network, so that the connection is tighter, and the mechanical property is improved. A hydroxyl-terminated group in silane modified polyurethane, a silicon element and a phosphorus element in modified benzoxazine and a benzoxazine structure have good flame retardance, a flame-retardant system is formed, and synergistic flame retardance is achieved.

The invention relates to the technical field of nano-composite water-based resin system design and function coordinated regulation and control, in particular to environment-friendly high-gloss wear-resistant water-based epoxy floor paint and a preparation method thereof. The environment-friendly high-gloss wear-resistant water-based epoxy floor paint is prepared from self-emulsifying water-based epoxy resin emulsion, a modified water-based epoxy curing agent containing biguanidyl and the like; the preparation method comprises the following steps: carrying out synergistic modification on a three-dimensional composite wear-resistant filler containing nano silicon dioxide-carbon nanotube-graphene through a silane coupling agent and dopamine; the light response type composite light stabilizer is compounded by a titanium dioxide grafted hindered amine light stabilizer and a benzophenone light stabilizer; a phase change temperature adjusting microcapsule and a nano-silver-chitosan antibacterial agent can also be added, so that multiple functions are realized. According to the floor paint disclosed by the invention, through an innovative formula and process, wear resistance, luster and weather resistance are remarkably improved, and toughness and crack resistance are enhanced; and the preparation method is environment-friendly and efficient, meets the requirements of multiple scenes, and has high economic value.

The invention relates to a preparation method and device of 2-phenylimidazoline and an obtained product. The method comprises the following steps: adding benzonitrile, ethidene diamine and a catalyst into a reaction kettle, heating the reaction kettle to a reaction temperature in an inert gas atmosphere, starting a reaction, timing from 80 DEG C when the temperature is automatically increased to 155-180 DEG C, preferably 160-170 DEG C and is not increased any more, and reacting for 4-12 hours, preferably about 5-10 hours, after the reaction is finished, carrying out vacuum distillation on the reaction kettle, the product is obtained from the bottom of the reaction kettle (1), the material ratio is that the molar ratio of benzonitrile to ethylenediamine is 1: (1.03-1.20), and the molar ratio of the addition amount of the catalyst to ethylenediamine is (0.004-0.01): 1. The cyanobenzene is almost completely converted, the conversion rate is greater than 99.9%, and the residual quantity of cyanobenzene in the product is less than 0.01%, which is far superior to that of the existing production process.

The invention provides a derivative with a benzophenone structure, a preparation method of the derivative, a photopolymerizable composition and application of the photopolymerizable composition as a photoinitiator. The photoinitiator shows excellent performance in a photopolymerization reaction, and can effectively catalyze the starting of the polymerization reaction especially under the irradiation of ultraviolet light. The compound not only has practical application value as a photoinitiator, but also is widely applied to preparation of various radiation curing materials due to high efficiency. The photoinitiator provided by the invention is suitable for producing, including but not limited to, photoresist, coating compositions, decorative and wear-resistant coatings, varnish, fiber reinforced composite materials, microelectronic packaging materials, plastic substrates, optical fiber coatings, molding materials, UV-cured structural resin and the like. These applications prove versatility and high efficiency of the compounds of formula (I) as photoinitiators.

The invention belongs to the technical field of preparation of adsorption separation functional materials, and discloses a controllable preparation method and application of an S-COFs nanosheet adsorbent. According to the method, 2, 5-dimethyl sulfide terephthalaldehyde DMTTPA and 1, 3, 5-tris (4-aminophenyl) benzene TAPB are taken as monomers, cyanobenzene is taken as a reaction solvent, benzoic acid is taken as a catalyst, aniline is taken as a competitor, and the high-crystallinity S-COF adsorbent is controllably prepared under the condition of high temperature by accurately regulating and controlling crystallization time and combining a dialysis purification technology. The method not only realizes controllable morphology, but also greatly improves the adsorption performance. The method has important economic value in the field of precious metal recovery, the problems of precious metal resource waste and environmental pollution in electronic waste can be effectively solved, and meanwhile, a new thought is provided for designing a low-cost high-performance adsorbent.

The invention belongs to the technical field of organic synthesis, and particularly relates to a preparation method of octocrylene serving as a main component of a sun-screening agent. The invention provides a preparation method of octocrylene serving as a main component of a sun-screening agent, which comprises the following steps: dissolving benzophenone in a polar aprotic solvent, adding zinc powder, heating to 50-70 DEG C under an inert condition, and dropwise adding 2-bromo-2-ethyl cyanoacetate for reaction to obtain a solution containing an intermediate etocrylene; under an ice bath condition, acidifying the solution containing the intermediate etocrilene by using a protonic acid aqueous solution, adding isooctanol, and slowly heating to 15-30 DEG C for reaction; and after the reaction is finished, extracting, washing, drying, filtering and concentrating the reaction liquid to obtain the octocrylene. According to the preparation method, reaction steps are reduced, the preparation process is simple, the operation method is convenient and fast, high-purity octocrylene can be obtained without purifying an intermediate, and large-scale industrial production is facilitated.

The application belongs to the technical field of cable materials, and discloses a cold-resistant and anti-cracking type special cable made of silicone rubber, which comprises a conductor cable core, an inner protective sleeve and an outer protective sleeve from inside to outside, wherein the raw materials of the outer protective sleeve comprise end-vinyl diphenyl siloxane, methyl vinyl siloxane, silane modified nano silicon dioxide, polyborosiloxane, an inhibitor, hydroxyl silicone oil, modified anti-ultraviolet polyurethane, a platinum catalyst and tetra(dimethylsiloxane) silane; diphenyl siloxane with a diphenyl side chain is selected as a main chain, and the modified anti-ultraviolet polyurethane is grafted to effectively destroy the structural regularity, inhibit low-temperature crystallization and prevent cable cracking; 4,4'-diamino benzophenone with anti-ultraviolet function is used as a chain extender and benzotriazole is used as an end-capping agent to be grafted into the polyurethane chain, so that the anti-ultraviolet capacity can be improved and migration can be avoided.

The invention discloses weather-resistant rubber for a plastic track and a preparation method of the weather-resistant rubber, and belongs to the technical field of rubber composite materials. The weather-resistant rubber for the plastic track comprises the following raw materials in parts by weight: 70-80 parts of ethylene propylene diene monomer, 20-30 parts of filler, 5-10 parts of a softening agent, 1-3 parts of a vulcanizing agent, 1-3 parts of an accelerant, 1-3 parts of a coupling agent and 0.6-1.2 parts of an anti-aging agent. The filler is highly dispersed and stably exists in a rubber matrix under the action of the coupling agent; according to the present invention, the anti-aging agent containing the aromatic amine structure and the benzophenone structure, the ethylene propylene diene monomer and the filler are grafted and cross-linked through the chemical action so as to form the stable spatial network structure, such that the anti-aging agent stably exists in the rubber matrix, and is not easily affected by the external environment to migrate so as to provide the good anti-aging effect; and the rubber material is protected, and the service life of the rubber material is prolonged.

The present invention relates to a process for the preparation of a compound of formula (I), a stereoisomer, a salt, a hydrate or a solvate thereof, (II) comprising the step of sulfinylation of a compound of formula (IV) to produce compound of formula (II); (IV) wherein: R1 and R2 are as defined in the claims, wherein said sulfinylation step is performed in the presence of a solvent selected from the group comprising benzene, toluene, ethylbenzene, xylene, chlorobenzene, bromobenzene, fluorobenzene, anisole, nitrobenzene, tetralin, dichlorobenzene, trimethylbenzene, ethylacetate, propylacetate, butylacetate, propanol, butanol, 2- methyltetrahydrofuran, diethylether, methyltertbutylether, cyclopentyl methyl ether, dichloromethane, tetrachloromethane, pentane, hexane, heptane, cyclohexane, decaline and mixtures thereof.

The invention discloses a marine polyethylene insulated cable material and a preparation method thereof, and relates to the technical field of cable materials. According to the invention, the p-hydroxycinnamyl alcohol modified low-density polyethylene is taken as a core, and a rigid benzene ring is introduced, so that the anti-aging performance and the mechanical performance of the polyethylene cable material are remarkably improved; then polyimide is attracted by hydroxyl to coat the surface of the cable, so that the waterproof and corrosion-resistant performance of the cable is improved; and then blending with the modified filler and the 5-methoxy-2-methylphenol, so that the mechanical property of the cable is improved, and the corrosion resistance and the waterproof effect are realized at the same time. The modified filler takes prismatic barium sulfate particles as a raw material, so that the mechanical property of a polymer is remarkably improved, and the ageing resistance of the cable material is enhanced by matching with barium sulfate; and 4-methacryloxybenzophenone and ethylene are polymerized to form an anti-ultraviolet liquid with certain viscosity, and barium sulfate particles are in different orientations under ultrasonic oscillation by virtue of the viscosity of the anti-ultraviolet liquid, so that the mechanical property and photo-thermal aging resistance of the cable are improved.

The invention relates to the technical field of synthesis of organic compounds, and discloses a preparation method of N-Boc-cis-4-hydroxy-L-proline methyl ester, which comprises the following steps: step 1, synthesis of (2S, 4R)-4-p-toluenesulfonyloxy-1, 2-pyrroline dicarboxylic acid-1-tert-butyl ester-2-methyl ester (2): (2S, 4R)-4-hydroxy-1, 2, 4-triazole-2-methyl ester (3) is prepared from (2S, 4R)-4-hydroxy-1, 2, 4-triazole-2-methyl ester and (2S, 4R)-4-p-toluenesulfonyloxy-1, 2-pyrroline dicarboxylic acid-1- The preparation method comprises the following steps: dissolving 1-tert-butyl-2-methyl 2-pyrroline dicarboxylic acid-1-tert-butyl ester-2-methyl ester in dichloromethane; according to the method, (2S, 4R)-4-hydroxy-1, 2-pyrroline dicarboxylic acid-1-tert-butyl-2-methyl ester which is cheap and easy to obtain in the market is adopted as a raw material, after p-benzoylation and acetylation are performed, hydroxyl of the raw material is converted from trans form to cis form, chiral conversion is performed, and finally the target product is synthesized. The used acetate replaces benzoate, the raw materials are cheaper, and the generated by-product acetic acid is more environment-friendly than benzoic acid, so that the method is suitable for large-scale production.

The invention discloses a supercritical foaming shoe sole and a preparation method thereof, and relates to the technical field of foaming materials, the foaming shoe sole is prepared from the following components by weight: 80-100 parts of TPU, 20-30 parts of calcium carbonate, 2-10 parts of N-hydroxymethyl acrylamide, 4-12 parts of modified graphene oxide, 1-5 parts of zinc stearate, 1-5 parts of dimethylaminobenzene, 1-5 parts of vinyl cyclooctene, 0.1-1 part of an antioxidant 1010, and 0.1-1 part of benzophenone; the obtained product has excellent foaming uniformity and weight reduction effect, and keeps good mechanical property balance; the shoe material not only shows excellent wear resistance and durability, but also has remarkable antibacterial and deodorant effects, and effectively solves various problems of traditional foaming soles in practical application.