2392 results about "Triazine" patented technology

Provided herein are compounds of Formula (I), or a pharmaceutically acceptable form thereof, and pharmaceutical compositions comprising the same. Also provided herein methods of modulating the activity of cellular targets by administering to a subject a compound of Formula (I), or a pharmaceutically acceptable form thereof. Further provided herein are methods of treating cancer, fibrotic diseases, and inflammatory diseases by administering to a subject a compound of or a pharmaceutically acceptable form thereof.

The invention relates to the technical field of drilling fluids, and discloses a lignite-based modified filtrate reducer for a drilling fluid and a preparation method of the lignite-based modified filtrate reducer. The lignite-based modified filtrate reducer for the drilling fluid is obtained by stirring and mixing the lignite grafted copolymer, the hydroxy propyl cellulose and the graphene oxide, drying and crushing. The steric effect generated by an oxazine ring, a pyridine ring, a triazine ring, a benzene ring and a pyrrole ring grafted into the lignite improves the temperature resistance and salt resistance of the filtrate reducer; the dispersing capacity of clay particles in a drilling fluid system is improved through sulfonic acid hydrated groups, and high-temperature coalescence of drilling fluid clay due to the high-temperature effect is avoided; a sulfonic acid anion group and a quaternary ammonium salt cation group are introduced into the filtrate reducer at the same time, so that the filtrate reducer can form a salt internal bond under the action of electrostatic force, and the salt resistance of the filtrate reducer is improved; the nano silicon dioxide increases the rigidity of the filtrate reducer, so that the filtrate reducer is not easy to curl under the conditions of high temperature and high salt.

The invention relates to the technical field of thickening agents, and discloses a preparation method of a high-temperature-resistant thickening agent for fracturing. According to the preparation method disclosed by the invention, acrylamide, sulfobetaine modified acrylamide and pyrrolidone modified naphthyl melamine are polymerized, so that the thickening agent for high-temperature-resistant fracturing is obtained. A triazine ring structure and naphthyl have high stability, the rigidity of a polyacrylamide molecular chain and the hydrophobic association effect between molecules are enhanced, the high temperature resistance and the salt resistance are improved, and due to the conjugation effect formed by two benzene rings in naphthyl, the thermal stability is further enhanced; by introducing vinyl pyrrolidone, hydrolysis of amido in polyacrylamide can be inhibited, and the temperature resistance and salt resistance of the thickening agent are improved; under a high-salt condition, due to weakening and shielding of mutual attraction of salt ions to anionic and cationic groups in the sulfobetaine, polyacrylamide molecules are more stretched, macroscopically, the viscosity is increased or reduced slightly, and the temperature resistance and salt resistance are improved.

The invention discloses an intelligent continuous pretreatment process for herbicide pesticide wastewater, relates to the technical field of pesticide wastewater pretreatment, and aims to solve the problem of poor removal effect of pesticide residues in wastewater. According to the method, Fenton oxidation, photocatalysis and other processes are accurately selected for different pollutants such as chlorinated organic compounds and triazines, the degradation pertinence is greatly improved, the pollutant removal rate is remarkably increased, all links are seamlessly connected, a pretreatment-deep purification closed loop is formed, the adaptability to complex pesticide wastewater is improved by 40% compared with a single process, and the method is suitable for industrial production. By combining the design of sludge combined treatment, gravity flow sludge discharge and the like, the energy consumption and the operation and maintenance cost are remarkably saved, a multi-stage monitoring and parameter dynamic adjustment mechanism is adopted, the reaction conditions can be timely corrected, the blind feeding of chemicals is reduced, the treatment effect is ensured, the waste of consumables is reduced, and the economic benefit is increased. Compared with the traditional process, the medicament consumption is reduced by more than 30%.

The invention discloses a synergistic compound light stabilizer for an automobile coating and a preparation method of the synergistic compound light stabilizer, and belongs to the technical field of coating additives. The light stabilizer comprises the following components in percentage by mass: 30-50% of a hindered amine light stabilizer, 20-40% of an ultraviolet light absorber, 5-15% of surface modified nano cerium dioxide, 5-10% of a hyperbranched polyester anti-migration aid and the balance of a solvent, wherein the ultraviolet light absorber is a mixture of benzotriazole and triazine in a mass ratio of (1: 1)-(1: 3); the particle size of the nano cerium dioxide is 10-50nm, and the surface of the nano cerium dioxide is coated with a silane coupling agent; the preparation method comprises the following steps: modifying the surface of nano cerium dioxide, shearing and dispersing multiple components at a high speed, and adjusting and filtering a solvent; the weather resistance of the automobile coating is remarkably improved and the service life of the automobile coating is remarkably prolonged through the synergistic effect of a plurality of light stabilizing components and the combination of the photocatalytic degradation capability of the nano cerium dioxide and the anti-migration characteristic of the hyperbranched polyester.

The present disclosure provides a method of treating a fatty liver disease (e.g., non-alcoholic steatohepatitis (NASH)) in a human subject (e.g., an adult human subject) in need of such treatment (e.g., NASH / improving liver fibrosis) with 2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile (resmetirom) or a pharmaceutically acceptable salt thereof. The present disclosure also provides a method of improving liver fibrosis in a human subject (e.g., an adult human subject) in need of such treatment (e.g., NASH / improving liver fibrosis) with 2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile (resmetirom) or a pharmaceutically acceptable salt thereof.

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to an electron transport material, an OLED with the electron transport material and an organic light-emitting device with the electron transport material. According to the electron transport material disclosed by the invention, triazinyl is taken as a framework, phenyl and cyano-substituted biphenyl is taken as a specific substituent group, methyl, adamantyl, phenyl and pyridyl are limited to be matched, and the electron transport material is used as a material for forming an electron transport layer to manufacture an organic electroluminescent device, so that the evaporation process of the device can be smoothly carried out; and the light-emitting efficiency of the organic light-emitting device is effectively improved, and the application prospect is very good.

The invention relates to a preparation method and application of a porous material for preparing methanol through carbon dioxide adsorption and conversion. When the material is prepared, firstly, 4, 4 '4' '-(1, 3, 5-triazine-2, 4, 6-trimethylene) triphenylamine and 1, 2-acenaphthequinone are treated in a mixed solvent containing dioxane / acetonitrile / 6M acetic acid, and AT-COF is obtained; further synthesizing by adopting an impregnation method to obtain IrRu-COF; and finally, uniformly mixing the active gamma-aluminum oxide and the IrRu-COF material to form a carrier dispersion liquid, and then carrying out PEI loading, vacuum impregnation, washing and drying to obtain the PEI functionalized gamma-Al2O3 / COF composite catalyst. The technical closed loop from low-concentration CO2 capture to solar driven conversion is realized, the process flow is simple, and the energy consumption is low.

The invention discloses an efficient wet desulfurization synergist and a preparation method thereof, and relates to the technical field of flue gas desulfurization. The efficient wet desulphurization synergist comprises the following raw materials in parts by weight: 10-20 parts of sodium formate, 5-10 parts of citric acid, 20-30 parts of binary acid, 5-6 parts of a surfactant, 15-20 parts of magnesium salt, 12-18 parts of sodium salt and 2-5 parts of a pH buffer agent. The preparation method comprises the following steps: reacting cyanuric chloride with lauryl amine to generate a monosubstituted compound; then reacting with L-asparaginic acid to generate a disubstituted compound; reacting with diethylenetriamine to generate a bis-triazine ring compound; and finally, reacting with sodium 2-chloroethanesulfonate to generate the surfactant. The high-efficiency wet desulphurization synergist prepared by the invention has a desulphurization effect.

The present application relates to a various novel crystalline forms of 2- [3,5-dichloro -4-(5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yloxy) phenyl]-3,5- dioxo- 2,3,4,5-tetrahydro [1,2,4] triazine-6-carbonitrile represented by the following structural formula-1, which is referred to as Resmetirom. The present application also relates to process for the preparation of various novel crystalline polymorphic forms of compound of formula-1.

The invention discloses an antibacterial and deodorant blended fabric, a preparation method thereof and application of the antibacterial and deodorant blended fabric in underwear, and relates to the technical field of fabrics. When the antibacterial and deodorant blended fabric is prepared, firstly, indolyl polyester is subjected to melt spinning to be prepared into fibers; the preparation method comprises the following steps: reacting fibers, indole and indole-6-formaldehyde, reacting with 4-(aminomethyl)-2, 6-di-tert-butylphenol, and reducing to obtain modified polyester fibers; secondly, the pretreated bamboo fibers react with carbon disulfide and potassium hydroxide; the preparation method comprises the following steps: oxidizing a modified bamboo fiber precursor obtained by reacting the modified bamboo fiber with 1-(2-propenyl)-1, 3, 5-triazine-2, 4, 6 (1H, 3H, 5H)-triketone to obtain a modified bamboo fiber, and oxidizing the modified bamboo fiber precursor to obtain the modified bamboo fiber; the modified polyester fibers and the modified bamboo fibers are blended and woven to obtain fabric, and then the fabric is finished through a finishing agent to obtain the antibacterial and deodorant blended fabric. The antibacterial and deodorant blended fabric prepared by the invention has good antistatic, antibacterial and durable properties.

The invention discloses an oil field desulfurizer and a preparation method thereof. The preparation method comprises the following steps: dissolving 1, 3-propane sultone in toluene, dropwise adding equimolar 1-methylimidazole under an ice-water bath, and heating to room temperature for reaction after dropwise adding; separating out a product after the reaction is finished, and dropwise adding equimolar concentrated sulfuric acid to obtain imidazole ionic liquid; mixing the imidazole ionic liquid with a catalytic promoter to obtain a catalyst; the preparation method comprises the following steps: adding paraformaldehyde, a triazine compound and a catalyst into a solvent, heating to 50-90 DEG C, controlling a reflux reaction for 6-9 hours, and after the reaction is finished, carrying out reduced pressure distillation to remove the solvent and separate out the catalyst, thereby obtaining the oil field desulfurizer. The desulfurizer is a modified triazine compound with a novel structure, N and lateral branch functional groups on a triazine ring of the desulfurizer can react with hydrogen sulfide, and compared with a conventional triazine desulfurizer, a plurality of desulfurization points are added, so that the sulfur capacity is greatly improved.

The invention relates to the technical field of silicone rubber, and discloses flame-retardant and heat-insulating silicone rubber and a preparation method thereof.The flame-retardant and heat-insulating silicone rubber is obtained by reacting a flame-retardant aid with hollow glass beads and then adding the reaction product, methyl vinyl silicone rubber, hydroxyl silicone oil, a reinforcing agent, a flame retardant and a vulcanizing agent into an open mill to be mixed and vulcanized. The flame-retardant auxiliary agent contains a siloxane structural unit and is grafted on the surfaces of the hollow glass beads, so that the compatibility between the flame-retardant auxiliary agent and the methyl vinyl silicone rubber is improved, the hollow glass beads are more uniformly dispersed in a silicone rubber matrix, a uniform heat insulation network is formed, the heat conductivity is reduced, and the heat insulation performance is improved. The flame-retardant auxiliary agent contains nitrogen-rich triazine groups, and generates nitrogen and other non-combustible gases during combustion, so that the oxygen concentration of the combustion atmosphere can be diluted, and the limit oxygen index, flame retardance and high-temperature resistance of the silicone rubber are improved.

The invention relates to the technical field of toughening agents, in particular to a hyperbranched epoxy resin modified MBS toughening agent and a preparation method thereof.The preparation method comprises the following steps that (S1) a cyclotriazine compound, polyglycidyl ether and a catalyst are added into an organic solvent to be mixed, a reaction is conducted for 8-72 h at the temperature of 30-150 DEG C under the protection of nitrogen, and after the reaction is completed, alcohol precipitation and drying are conducted to obtain a hyperbranched epoxy resin modified MBS toughening agent; the hyperbranched epoxy resin is obtained; (S2) adding the hyperbranched epoxy resin into the solvent A, uniformly mixing, then adding MBS resin, stirring for 0.5-1 hour at a high speed under the condition of room temperature, then heating to 70-110 DEG C, stirring for 0.5-1 hour, and removing the residual solvent to obtain the hyperbranched epoxy resin modified MBS toughening agent, and by utilizing the hyperbranched characteristic of the resin, enabling the modified MBS toughening agent to be used for preparing the hyperbranched epoxy resin modified MBS toughening agent. The toughening effect can be achieved by adding a small amount of the toughening agent into common epoxy resin.

The invention discloses a synthesis method of bromo-triazine, which belongs to the technical field of organic synthesis, and comprises the following steps: preparing an alumina-loaded N, N-dimethylaminopyridine catalyst, filling the alumina-loaded N, N-dimethylaminopyridine catalyst in a fixed bed reactor, introducing tribromophenol and metal oxide mixed slurry and cyanuric chloride slurry, carrying out a reaction for 2-4 hours, and carrying out a reaction for 2-4 hours to obtain the bromo-triazine. Raising the temperature for reaction to obtain a crude product solution; and performing post-treatment to obtain a bromo-triazine product. According to the invention, the aluminum oxide loaded N, N-dimethylaminopyridine catalyst is synthesized, and the N, N-dimethylaminopyridine enables the reaction speed to be higher and the yield to be higher; nano aluminum oxide is adopted for loading, so that on one hand, dealkalization synthesis of bromotriazine is realized, and on the other hand, the reaction efficiency is accelerated; the continuous process realizes non-aqueous medium and low-temperature short-time reaction, so that hydrolysis is further avoided; the aluminum oxide loaded N, N-dimethylaminopyridine catalyst is high in activity and stability, the synthesis method is simplified, and the aluminum oxide loaded N, N-dimethylaminopyridine catalyst is suitable for industrial large-scale production.

The present disclosure provides a method of treating a fatty liver disease (e.g., non-alcoholic steatohepatitis (NASH)) in a human subject (e.g., an adult human subject) in need of such treatment (e.g., NASH / improving liver fibrosis) with 2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile (resmetirom) or a pharmaceutically acceptable salt thereof. The present disclosure also provides a method of improving liver fibrosis in a human subject (e.g., an adult human subject) in need of such treatment (e.g., NASH / improving liver fibrosis) with 2-(3,5-dichloro-4-((5-isopropyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenyl)-3,5-dioxo-2,3,4,5-tetrahydro-1,2,4-triazine-6-carbonitrile (resmetirom) or a pharmaceutically acceptable salt thereof.

The invention relates to a heterojunction composite material and a preparation method and application thereof, and belongs to the technical field of catalysts. The preparation method of the heterojunction composite material comprises the following steps: dispersing nano cadmium sulfide in water to obtain a nano cadmium sulfide dispersion liquid, then adding a triazinyl covalent organic framework, fully reacting at 75-85 DEG C, centrifuging, precipitating, washing and drying to obtain the heterojunction composite material. The narrow-band-gap semiconductor cadmium sulfide and the wide-band-gap semiconductor triazinyl covalent organic framework are compounded to form the heterojunction structure composite material photocatalyst, and the narrow-band-gap semiconductor cadmium sulfide and the wide-band-gap semiconductor triazinyl covalent organic framework interact with each other, so that the response range of sunlight is widened, separation and transfer of photo-induced electrons and holes are promoted, and the photoelectric conversion efficiency is improved. Therefore, the photocatalytic oxidation-reduction capacity of the catalyst is improved, and the photocatalytic performance of the catalyst is finally improved. The heterojunction composite material can be applied to the field of cleaning and environmental protection as a photocatalyst, and has excellent hydrogen production efficiency.

The invention relates to the field of oil storage microcapsules, and discloses a porous covalent organic framework oil storage microcapsule as well as a preparation method and application thereof. Under the catalysis of p-toluenesulfonic acid, 4, 4 ', 4' '-(1, 3, 5,-triazine-2, 4, 6-triyl) triphenylamine and trialdehyde phloroglucinol monomers are promoted to be subjected to condensation reaction in the repeated oscillation process, a product is purified to prepare a 4, 4', 4 ''-(1, 3, 5,-triazine-2, 4, 6-triyl) triphenylamine covalent organic framework, and by means of a periodic pore structure of the covalent organic framework, the covalent organic framework can be used for preparing the covalent organic framework. And the lubricating oil is adsorbed and stored and can be controllably separated out to provide lubrication during working, so that a high-performance self-lubricating effect can be realized. In addition, covalent organic frameworks are used as hard particles to be doped into a polymer matrix to modify the polymer matrix, so that the wear resistance of the polymer matrix can be greatly enhanced, and the performance of the self-lubricating bearing material is improved.

The invention discloses a heat dissipation type anti-corrosion coating and a preparation method thereof, and belongs to the technical field of anti-corrosion coatings. The heat dissipation type anticorrosive paint comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 100 parts of heat-conducting water-borne epoxy resin, 4-6 parts of graphene, 0.3-0.5 part of an antioxidant, 0.2-0.4 part of a defoaming agent, 0.2-0.4 part of a flatting agent and 10 parts of first deionized water; the component B comprises the following components in parts by mass: 10-20 parts of a curing agent, 40-60 parts of a toughening agent, 4-6 parts of functionalized boron nitride microspheres and 30-50 parts of second deionized water; the heat-conducting water-borne epoxy resin is 1, 5-naphthalene diphenol modified water-borne epoxy resin; the curing agent is an aromatic amine curing agent; the toughening agent is obtained by carrying out copolymerization on acrylamide, N-(4-aminophenyl) acrylamide, 1, 3, 5-triacryloyl-s-triazine and 3-dimethylamino allyl phosphoric acid; the functionalized boron nitride microspheres are boron nitride microspheres modified by 4-aminobenzoic acid.

The present disclosure relates to stick compositions including 2,4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine, at least one solvent for solubilizing the bemotrizinol, and at least one lipophilic gelling agent, as well as to methods of making and using such compositions.

The invention relates to the technical field of water treatment, in particular to a reverse osmosis membrane and a preparation method thereof. The preparation method of the reverse osmosis membrane comprises the following steps: soaking a base membrane in a water phase solution, taking out the base membrane, drying the surface of the base membrane, coating the base membrane with an oil phase solution, carrying out interfacial polymerization reaction, curing, coating with a modifier solution, and drying to obtain the reverse osmosis membrane, the modifying agent comprises 2, 4, 6-tri (4-aminophenyl)-1, 3, 5-triazine-1, 3, 5-tri (4-methyl phenyl) benzene. The successfully grafted COFs can improve the water permeability of the membrane to a certain extent, and also can improve the pollution resistance, acid resistance and oxidation resistance of the membrane, so that the service life of the membrane is prolonged. According to the invention, different effects of the same type of imino COFs introduced to the reverse osmosis membrane are further compared, so that the excellence of the selected imino COFs is highlighted.

The present invention relates to the field of water treatment technology, and more particularly to a kind of reverse osmosis membrane and preparation method thereof.The preparation method of the reverse osmosis membrane includes:Basement membrane is soaked in aqueous phase solution, after taking out surface drying, oil phase solution is coated on basement membrane and carries out interfacial polymerization reaction, after solidification, coating modifier solution, after drying, obtain reverse osmosis membrane;The modifier includes 2,4,6-tris (4-aminophenyl) ‑1,3,5-triazine ‑1,3,5-tris (4-methylphenyl) benzene.The COFs successfully grafted by the present invention can improve the water permeability of membrane to a certain extent, and can also improve the anti-pollution property, acid resistance and oxidation resistance of membrane, and then improve the service life of membrane.The present invention further compares the different effects that the same type of imino COFs are introduced into reverse osmosis membrane, so as to highlight the excellence of the imino COFs selected by the present invention.

The invention discloses preparation of a phenanthroline-based covalent organic framework photocatalyst and application of the phenanthroline-based covalent organic framework photocatalyst in photocatalytic production of hydrogen peroxide. According to the method, a hydrogen peroxide production experiment is carried out in a water-oxygen system or a benzyl alcohol-water-oxygen system by taking phenanthroline-based COF as a photocatalyst. According to the invention, through regulation and control of molecular flatness engineering, an electron-rich phenanthroline unit (Phen) anchored by a pyridine expansion plane and electron-deficient triazine (TTA) are integrated into a COF skeleton, and a novel electron donor-acceptor (D-A) type COF is synthesized. The COF has the advantages of proper energy band structure, excellent photo-induced electron and hole separation efficiency, strong D-A interaction, good hydrophilicity and the like, and the efficiency of photocatalytic hydrogen peroxide production reaction within a short time is greatly improved. The invention provides a use method of the COF photocatalyst which is cheap, convenient, rapid, efficient and environment-friendly, and has a potential application prospect.

The present disclosure relates to compositions including 2,4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine, avobenzone, and additional organic UV filter(s), as well as to methods of making and using such compositions.

The invention discloses a preparation method of an optical OCA (Optical Clear Adhesive) and application of the optical OCA in a mobile phone folding screen, and relates to the technical field of optical cement, the optical OCA is prepared from the following raw materials in parts by weight: 50 parts of acrylate prepolymers, 2-4 parts of 3-allyl-2-mercapto-3H-quinazoline-4-ketone, 1-3 parts of diallyl disulfide, 1-3 parts of 3-[N, N-dimethyl formamide], 1-3 parts of 2, 3, 5-trimethyl-1, 3-pentanediol monoisobutyronitrile, 1-3 parts of 2, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3 The preparation method comprises the following steps: adding 3-5 parts of N, N-dimethyl-[2-(2-methylpropane-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt, 1-3 parts of allyl succinimido carbonate, 2-4 parts of dicyclopentene methacrylate, 1-3 parts of 1, 3, 5-triacryloyl hexahydro-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5- The invention relates to a graphene quantum dot photoinitiator which is prepared from the following components in parts by weight: 1-3 parts of 1, 3, 5-triazine, 0.8-1.2 parts of a photoinitiator, 1-3 parts of an aziridine cross-linking agent, 1-3 parts of graphene quantum dots, 0.8-1.2 parts of a coupling agent and 40-50 parts of a diluent. The optical OCA adhesive is high in light transmittance and bonding strength, good in weather resistance and excellent in folding resistance.

The present disclosure relates to compositions including 2,4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine and an antioxidant system, as well as to methods of making and using such compositions.

The invention relates to the technical field of high polymer materials, in particular to a light-aging-resistant flame-retardant ABS material for an electric fitting box and a preparation method of the light-aging-resistant flame-retardant ABS material. Comprising the following raw materials: ABS resin, AS resin, ABS high rubber powder, CPE, bromotriazine, carrier-free antimony trioxide master batch, a flame retardant synergist, precipitated barium sulphate, titanium dioxide, a main antioxidant, an auxiliary antioxidant, a lubricant, an anti-dripping agent, a dispersing agent and an ultraviolet absorbent. The material has excellent flame retardant property, and the synergistic effect of the flame retardant components such as the bromotriazine and the like reaches a high flame retardant grade; the ultraviolet absorbent and the titanium dioxide can delay aging and stabilize the color; the melt flow rate is high, and the fluidity is improved through cooperation of high-melt-index ABS and low-molecular-weight AS resin; the mechanical property is good, and the raw materials cooperate to guarantee strength and toughness; the appearance quality is good, pocking marks are avoided, and the glossiness is good. The preparation process is simple, and conventional equipment and reasonable parameters ensure stability and operability.

The invention relates to the technical field of petrochemical engineering, and discloses a preparation method and application of temperature-resistant modified carboxymethyl hydroxypropyl guar gum, carboxymethyl hydroxypropyl guar gum, sodium hydroxide, 2-chloro-4-cardanol quaternary ammonium salt-6-phenyl-s-triazine and the like are subjected to a reaction, and the temperature-resistant modified carboxymethyl hydroxypropyl guar gum is obtained. Quaternary ammonium salt cations are introduced into carboxymethyl hydroxypropyl guar gum and can form electrostatic interaction with sodium carboxylate anions of the carboxymethyl hydroxypropyl guar gum, so that the molecular chain interaction force between guar gum is improved, the tackifying effect can be achieved, and the apparent viscosity is improved. The temperature-resistant modified carboxymethyl hydroxypropyl guar gum has the advantages of high apparent viscosity and good thickening effect, has excellent temperature resistance and shear resistance, and has good practical application in fracturing fluid thickeners due to introduction of an alkyl long chain and formation of a physical cross-linked network through hydrophobic association action, and the temperature-resistant modified carboxymethyl hydroxypropyl guar gum has the advantages of high apparent viscosity and good thickening effect.

The invention relates to a preparation method of a high-lithium-affinity vinylene covalent organic framework material serving as a lithium metal negative electrode interface protective layer. The method comprises the following steps: firstly, by utilizing a simple hydrothermal synthesis method, taking 1, 3, 5-trimethyl-2, 4, 6-triazine (TMT) and 2, 2-bipyridine-5, 5-diformaldehyde (BPY) as monomers, and carrying out Aldol condensation reaction to synthesize a covalent organic framework material connected by a vinylene bond, which is named as viCOF-bpy; the electrochemical performance of the material is verified by modifying the surface of a copper pole piece with the viCOF-bpy material and then assembling a battery. The lithium-loving group on the material skeleton can promote the migration of lithium ions, and the vinylidene has very strong chemical stability, so that the electrochemical performance of the lithium metal battery can be effectively improved.

The invention relates to the technical field of metal working fluids, in particular to a degradable environment-friendly vegetable oil-based semi-synthetic cutting fluid and a preparation method thereof. The cutting fluid comprises 20-30 parts of vegetable lubricating oil, 10-20 parts of an alkali storage agent, 2-5 parts of a corrosion inhibitor, 3-5 parts of a coupling agent, 5-8 parts of a surfactant and 6-11 parts of a composite anti-rust agent, the composite anti-rust agent comprises an anti-rust agent A and an anti-rust agent B, the anti-rust agent A comprises N-[3-(dimethylamino) propyl]-N, N-dimethylformamide, and the anti-rust agent B comprises N-[3-(dimethylamino) propyl]-N, N-dimethylformamide. The antirust agent A comprises at least one of N, N ', N'-trimethyl-1, 3-propanediamine, benzotriazole, sebacic acid and 2, 4, 6-tri (aminocaproic acid)-1, 3, 5-triazine, and the antirust agent B comprises at least one of an imidazoline compound and fatty acid sarcosine ester. The cutting fluid provided by the invention has excellent corrosion resistance, rust resistance, defoaming property, biodegradability and storage stability, and has a good application prospect.