1342 results about "Benzotriazole" patented technology

The invention relates to an insulating weather-resistant powder coating and a preparation method thereof, and belongs to the technical field of coatings, and the powder coating comprises composite modified resin, a dual curing agent, a functional filler, a polyacrylate leveling agent, fumed silica, a benzotriazole ultraviolet light absorber, polytetrafluoroethylene wax powder and the like. A core-shell structure of the composite modified resin is designed, high insulativity is kept through a silane modified epoxy core layer, a weather-proof barrier is provided through an acrylic acid shell layer, and the phase separation problem is solved through interface chemical bonding; a dual-curing mechanism is designed, and isocyanate and acrylic hydroxyl react to form an interpenetrating network while an epoxy core layer is cured by anhydride; a filler synergistic effect is designed, silane coupling agent modified nano boron nitride forms a three-dimensional heat-conducting insulating network, and rutile type titanium dioxide is coated with silicon dioxide, so that ultraviolet aging is resisted. All the components cooperate with one another, so that the coating has excellent insulativity, weather resistance, adhesiveness and the like at the same time.

The invention relates to the technical field of metal surface protection, and discloses a corrosion-resistant self-repairing metal fastener and a preparation method thereof.The corrosion-resistant self-repairing metal fastener comprises a zinc alloy matrix, a nanometer passivation layer, a slow-release corrosion-resistant layer and a self-repairing functional layer, and the nanometer passivation layer, the slow-release corrosion-resistant layer and the self-repairing functional layer sequentially wrap the zinc alloy matrix; the zinc alloy matrix consists of Al, Cu, Mg, Ce and Zn; the nano passivation layer adopts zinc phosphate / silane composite sol to construct a Si-O-P covalent bond network, and plasma is combined to graft epoxy groups to enhance the interface bonding strength; the slow-release anti-corrosion layer is used for loading a pH response type benzotriazole derivative through gradient aperture mesoporous silica, so that the dynamic controlled release of a corrosion inhibitor is realized; the self-repairing functional layer adopts a synergistic effect of a mechanical triggering type sulfydryl siloxane microcapsule and a pH triggering type EDTA chelating agent microcapsule to form a physical plugging-chemical passivation dual-mode repairing mechanism. Through four-stage cooperation of matrix modification, interface strengthening, slow-release regulation and control and intelligent repair, the corrosion resistance of the corrosion-resistant self-repairing metal fastener in a complex environment is remarkably enhanced.

An aqueous ultraviolet-absorbing resin emulsion, and an aqueous resin emulsion composition containing the emulsion is provided, wherein the emulsion is excellent in compatibility with a synthetic resin and light resistance. Also, the emulsion improves stability in blending with an aqueous emulsion of the synthetic resin, and prevents bleed out of the ultraviolet-absorbing resin on the surface of a coating film. Further, the aqueous ultraviolet-absorbing resin emulsion imparts excellent alkali or solvent resistance to a synthetic resin poor in alkali or solvent resistance. More specifically, an aqueous resin emulsion composition comprising (I) an aqueous ultraviolet-absorbing resin emulsion and (II) an other aqueous resin emulsion is provided, wherein the emulsion (I) is obtained by urethanizing (A) a polyol component having an ultraviolet-absorbing group {e.g., 1,1-bis[3-(2H-benzotriazol-2-yl)-4-hydroxy-benzeneethanol]methane}, (B) a polyol if necessary, (C) an alkyl or aryl dialkanolamine compound, and (D) an organic polyisocyanate in (E) an organic solvent, diluting the reaction mixture with (F) an organic solvent having a boiling point lower than 100° C. to give a resin solution, neutralizing the resin solution with (G) a neutralizing agent, and dispersing the resultant in water.

The invention discloses a neodymium iron boron composite magnet and a production process thereof, and belongs to the technical field of magnetic materials. Carrying out sand blasting and phosphoric acid treatment on the neodymium-iron-boron magnet to obtain a pretreated neodymium-iron-boron magnet; and mixing 50-60 parts of epoxy resin, 30-40 parts of polyurethane and 10-20 parts of polysiloxane, then adding 10-20 parts of a solvent, 8-16 parts of filler, 3-5 parts of an auxiliary agent and 1-3 parts of dibenzoyl peroxide, stirring to obtain a protective coating, then spraying the protective coating on the surface of the pretreated neodymium-iron-boron magnet, and curing to obtain the neodymium-iron-boron composite magnet. The auxiliary agent contains a hindered phenol structure, a benzotriazole structure and fluorine atoms, and a hybrid cross-linked network structure is formed among the auxiliary agent, the epoxy resin and the filler, so that the auxiliary agent and the filler can be highly dispersed and stably exist in the protective coating and fully play roles, and the protective coating has the advantages that the protective coating is more stable in performance due to the combined action of the other raw materials in the protective coating; the neodymium-iron-boron composite magnet has excellent and stable water resistance, aging resistance, corrosion resistance and the like.

Modified resin and SGP laminated resin are mixed, extruded and subjected to film casting to prepare a laminated sheet, the laminated sheet is placed between two pieces of glass to be pressed at a high temperature, when the modified resin and the SGP laminated resin are molten, double bonds on the modified resin can be grafted with molecular chains on the SGP laminated resin, and the SGP laminated glass is formed. A main body of a molecular chain of the modified resin is a polyurethane structure containing an organic silicon chain segment, the heat insulation effect of the SGP laminated resin can be improved, and the modified filler contains a multi-cavity structure, so that the heat insulation effect is further improved; and a titanium-containing organic silicon resin chain segment in the modified resin, tin dioxide on the surface of the modified filler and a benzotriazole structure in the modified resin can increase the absorption of ultraviolet rays by the laminated film and reduce the irradiation of the ultraviolet rays.

The invention provides a light conversion film composition. The light conversion film composition comprises the following components in percentage by weight: matrix resin, a light conversion agent and an auxiliary agent, the light conversion agent is a benzotriazole compound, and the auxiliary agent is an organic solvent. The structural general formula of the benzotriazole compound is as follows: # imgabs0 # R1 and R2 are respectively and independently selected from any one or more of H, C1-C20 alkyl and C1-C20 alkyl with at least one methylene substituted by a polyether chain segment, and R3 is independently a chain segment containing a carbon-carbon unsaturated double bond.

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 invention relates to an anti-yellowing automobile composite film and a preparation method thereof, and belongs to the technical field of high polymer materials. The yellow-resistant automobile composite film is prepared from the following components in parts by weight: 60 to 70 parts of PVC (Polyvinyl Chloride) master batch, 10 to 20 parts of TPU (Thermoplastic Polyurethane) master batch, 1 to 2 parts of plasticizer, 0.5 to 0.8 part of flatting agent, 0.1 to 2 parts of yellowing-resistant modifier and 0.1 to 2 parts of modified flame retardant, sym-triazine cyanuric chloride and a benzotriazole intermediate in the anti-yellowing modifier absorb ultraviolet rays and reduce yellowing of the ultraviolet rays on the composite material, and maleimide groups, maleic anhydride and isocyanurate rings for increasing the crosslinking density cooperate with one another, so that the heat resistance of the material is improved, and the yellowing is reduced; phosphorus and nitrogen main chains of phosphonitrilic chloride trimer in the modified flame retardant have a conjugation effect, so that a protective film is formed, oxygen is isolated, and the phosphonitrilic chloride trimer and nitrogen are synergistically flame-retardant; the anti-yellowing automobile composite film prepared by the invention not only has excellent ultraviolet absorption performance, heat resistance and anti-yellowing effects, but also has a good flame retardant effect.

The invention discloses an environment-friendly flame-retardant polyester yarn and a preparation method thereof, and relates to the technical field of textile, and the environment-friendly flame-retardant polyester yarn is prepared from the following raw materials in parts by weight: 100 parts of polyester chips, 10-15 parts of a flame-retardant polymer containing an organic salt structure, 1-3 parts of an antioxidant, 0.8-2 parts of a lubricant, 1-2 parts of benzotriazole sodium and 0.8-1.2 parts of quinoline yellow. The flame-retardant polymer containing the organic salt structure comprises a structural unit introduced by the following monomers: bis (3-aminophenyl) (3, 5-bis (trifluoromethyl) phenyl) phosphine oxide, 3, 7-diamino-5-phenylphenazine chloride and 3, 5-isoxazole dicarboxylic acid. The environment-friendly flame-retardant polyester yarn is good in ultraviolet aging resistance and flame retardance, high in strength and sufficient in softness.

The invention discloses a high-temperature-resistant and corrosion-resistant coating and a preparation method thereof, and belongs to the technical field of coatings. The preparation method comprises the following steps: uniformly stirring 40-50 parts by weight of epoxy resin, 25-35 parts by weight of phenolic resin, 20-30 parts by weight of modified filler, 4-10 parts by weight of pigment and 50-65 parts by weight of solvent, then adding 5-10 parts by weight of curing agent and 0.5-1 part by weight of accelerant, and stirring to obtain the coating. The modified filler contains inorganic fillers such as titanium dioxide and glass flakes, a benzotriazole structure and a hindered phenol structure, and the modified filler has good compatibility with other raw materials and has chemical action with epoxy resin, so that the modified filler can stably exist in the coating, is not easy to migrate and fall off, and plays a role for a long time; under the combined action of other raw materials, the coating has excellent and stable high temperature resistance, corrosion resistance, aging resistance, flame retardance and the like, and the service life is greatly prolonged.

The invention relates to the field of anticorrosive paint, in particular to anticorrosive paint containing lanthanum cerium oxide and a preparation method of the anticorrosive paint. The invention relates to an anticorrosive coating containing lanthanum cerium oxide. The anticorrosive coating is prepared from the following raw materials: 28 to 45 parts of ultraviolet stable composite film forming matter, 5 to 10 parts of composite rare earth filler, 6 to 12 parts of supported synergistic antirust agent, 18 to 30 parts of mixed solvent, 0.8 to 2.5 parts of dispersing agent, 2.7 to 5.3 parts of functional additive and 0.5 to 1.2 parts of nano montmorillonite, the composite rare earth filler is lanthanum cerium oxide-hydroxyapatite composite powder with a core-shell structure, wherein lanthanum cerium oxide is used as a core, hydroxyapatite is used as a shell, and the thickness of the shell layer is 10-20 nm; the ultraviolet stable composite film forming substance comprises epoxy resin and ultraviolet grafting modified polyurethane in a weight ratio of 1: (0.6-2.2); the supported synergistic antirust agent is a mixture of mesoporous silica supported benzotriazole and zinc molybdate. And the obtained coating is high in adhesive force and long in service life.

The invention discloses a carbon-coated lithium iron phosphate positive electrode material and a preparation method thereof, and belongs to the technical field of electrochemical energy materials. The preparation method comprises the following steps: stirring a binder and 80% of a solvent in parts by weight at 50-55 DEG C, adding a conductive agent, and stirring at the temperature lower than 40 DEG C for 2 hours; adding carbon-coated lithium iron phosphate, stirring, adding 20% of a solvent, and stirring; vacuumizing, maintaining the pressure, breaking the vacuum again, vacuumizing again, stirring, and testing the viscosity to obtain positive electrode slurry; and coating on an aluminum foil, and rolling to obtain the positive electrode material. The interior of the binder is of a firm three-dimensional network cross-linked structure, and meanwhile, the binder contains a benzotriazole structure and rich hydroxyl groups, so that the binder is high in adhesive force, and the non-polar part of the binder is beneficial to wetting an electrode by an electrolyte; and the binder and other raw materials have good compatibility, synergistically play a role, and jointly endow the carbon-coated lithium iron phosphate positive electrode material with excellent and stable cycle life, conductivity and the like, so that the carbon-coated lithium iron phosphate positive electrode material has excellent comprehensive performance and is safer to use.

The invention relates to the technical field of PET optical films, and particularly discloses a high-light-transmittance blue-light-resistant PET optical film and a preparation method thereof, and the high-light-transmittance blue-light-resistant PET optical film is prepared from the following raw materials by weight: 70-85% of a polyethylene glycol terephthalate resin matrix; 3%-8% of a benzotriazole anti-blue light agent; 5%-12% of a silicon dioxide nano anti-reflection agent; 2%-6% of nano zinc oxide or nano cerium oxide; 1.5% to 4% of a polycarbodiimide cross-linking agent; 0.5%-3% of an anti-blocking agent; 0.4%-1.5% of an antioxidant; 0.4%-1.0% of an ultraviolet light absorber; the balance is a processing aid; the preparation method comprises the following steps: S1, pretreating the raw materials; s2, a mixing procedure; and S3, extruding and coating. The PET optical film provided by the invention has high optical properties of high light transmittance, blue light resistance and low haze, and has the advantages of high light transmittance and blue light blocking rate of the optical film and improvement of the application range of the optical film.

The invention relates to a phosphorus-free zinc-free seawater special-purpose scale and corrosion inhibitor, which comprises, by weight, 20-25% of sulfonic acid modified polyaspartic acid, 8-12% of quaternized chitosan, 5-10% of a sulfonate copolymer, 5-10% of polyepoxysuccinic acid, 1-3% of benzotriazole or methyl benzotriazole, 0.5-1% of sodium tungstate, and the balance of deionized water. According to the formula, traditional corrosion inhibitors such as phosphorus and zinc are completely abandoned, functions are achieved through natural polymer derivatives such as sulfonic acid modified polyaspartic acid and quaternized chitosan, and the scale and corrosion inhibitor has the following environmental protection advantages that the scale and corrosion inhibitor does not contain phosphorus and zinc elements at all, and water eutrophication and heavy metal accumulation caused by a traditional phosphorus and zinc formula are avoided.

The invention relates to the field of textile processing, and discloses a polyester knitted fabric flame-retardant finishing method, which is characterized in that modified waterborne polyurethane emulsion is finished on a washed and dried polyester knitted fabric by using a dipping and drying method; the modified waterborne polyurethane emulsion is prepared from isophorone diisocyanate, an amine chain extender, a flame-retardant cross-linking agent, modified nano titanium dioxide and the like, and the amine chain extender is prepared from 2-(2, 4-dihydroxyphenyl)-2H-benzotriazole and 2-chloro-4, 6-diamino-1, 3, 5-triazine through a reaction; the flame-retardant cross-linking agent is prepared from 1, 3, 5-tri (2-hydroxyethyl) cyanuric acid and dimethyl methylphosphonate through a reaction; the modified nano titanium dioxide is prepared from modified silane coupling agent modified nano titanium dioxide hybrid silica sol obtained by reaction of tetramethyldisiloxane and vinyltrimethoxysilane, so that the material is endowed with good flame retardant property, the ultraviolet protection property of the material is improved, and the mechanical property of the material is ensured.

The invention relates to the field of organic photoelectricity, and discloses an asymmetric benzotriazole high-efficiency fluorescent isomer for a light conversion film and a synthesis method of the asymmetric benzotriazole high-efficiency fluorescent isomer. The optimal excitation wavelength of the compound is about 280-290 nm, the maximum absorption peak is about 280-350 nm, the strongest emission peak is about 370-440 nm, and the molar extinction coefficient is greater than 20000 L / (mol.cm). The proportion of two isomers generated during hydrogen substitution on a nitrogen atom of benzotriazole is close to 1: 1, and at present, only symmetric products are utilized in most researches, so that the research blank of asymmetric isomers is filled, and the asymmetric products are proved to have efficient fluorescence performance. When the light conversion film is prepared, the asymmetric product can be independently used as a light conversion agent, and the two isomers can be blended according to any proportion to be used as the light conversion agent, so that the atom economy is fully improved, and the method has great significance on future basic research and industrial application.

The invention relates to the field of coatings, and discloses weather-resistant and scratch-resistant coated glass and a preparation method thereof.The coated glass comprises a glass substrate and a functional coating formed by thermocuring of a coating composition, and the coating composition comprises waterborne polyurethane, a functional additive and modified graphene oxide; the functional additive is prepared from silica sol and aminopropyl double-terminated polydimethylsiloxane grafted modified nano titanium dioxide; the modified nano titanium dioxide is prepared by enabling 2-(2, 4-dihydroxyphenyl)-2H-benzotriazole and a chloropropyl silane coupling agent to react, grafting the reaction product on the surface of nano titanium dioxide, and then grafting isophorone diisocyanate and pentaerythritol triacrylate; the modified graphene oxide is prepared by grafting a flame-retardant modifier prepared by reacting 3-amino-1, 2, 4-triazole, an amino silane coupling agent, terephthalaldehyde and DOPO with graphene oxide, and the coated glass prepared by the preparation method disclosed by the invention is high in hardness, good in flame retardance and antifouling effect and excellent in wear resistance and ultraviolet resistance.

To provide a fiber structure suitable for a wear for healthcare and nursing care workers in which inferior light resistance and heat resistance which are intrinsic to cationic dyeable polyester fiber dyed with a cationic dye are simultaneously overcome, and a method for manufacturing the fiber structure.SOLUTION: A fiber structure containing cationic dyeable polyester fiber dyed with a cationic dye contains a benzotriazole-based compound by 0.50 mass% to 3.50 mass% based on the mass of the fiber structure, and contains a zinc pyrithione-based compound by 0.05 mass% to 0.20 mass% based on the mass of the fiber structure.SELECTED DRAWING: None

The invention provides photovoltaic copper paste, a preparation method thereof and application of the photovoltaic copper paste in preparation of solar cells, and relates to the technical field of photovoltaic cell manufacturing, and the photovoltaic copper paste comprises gradient micron-sized copper powder, a nano conductive reinforcing material, an organic binder, glass powder, a reinforcer and an optional additive; the reinforcing agent comprises an antioxidant, a nano interface reinforcing agent, a passivating agent and an optional corrosion inhibitor; wherein the nanometer interface reinforcing agent comprises one or more of aluminum oxide nanoparticles, antimony nanoparticles and graphene quantum dots; the passivating agent is prepared from benzotriazole and a silane coupling agent. According to the improved copper paste formula, the contact resistance performance and oxidation resistance can be improved, and the uniformity of grid lines is improved.

The invention relates to the technical field of rust-proof treatment of metal products, in particular to a rust-proof discoloration-proof packaging system and method for a bronze-plated tire bead wire. The system sequentially comprises a cleaning unit, a surface treatment unit, a drying box, a film coating device, a cooling unit, a post-treatment unit, a take-up device and a packaging system according to the process. The core of the process method is as follows: the steel wire is immediately coated with a special antirust film coating agent to be cured by using waste heat generated after the steel wire is dried, and the film coating agent comprises water-based resin, a silane coupling agent, a conductive polymer, a nano filler and benzotriazole; during packaging, an intelligent packaging system with a built-in humidity response humidity control bag is adopted, and the humidity control bag can automatically release inert gas and a moisture absorbent when the environment humidity reaches a preset threshold value. Multiple synergistic protection on the surface of the steel wire is achieved, the anti-rust period is remarkably prolonged to 12 months or above through dynamic humidity control, meanwhile, the bonding performance and the retention rate of the steel wire and rubber are improved, and energy conservation and environment protection are achieved.

The invention provides a preparation method of tiall peptide, and belongs to the technical field of polypeptide synthesis, according to the preparation method, a small amount of lysis solution is adopted for lysis, a small amount of poor solution composed of methyl tert-butyl ether and n-heptane with the volume ratio of 1-2: 1 is used for crude peptide precipitation, precipitated particles are uniform, large and not prone to caking, the crude peptide impurity level is lower, and the purity of the crude peptide is higher. The method has the advantages that the method is simple in process and easy in subsequent purification step, the amount of generated waste liquid is small, the activating agent 7-(1H-pyrrolo [2, 3-b] pyridine-1-yl)-1H-benzo [d] [1, 2, 3] triazole-1-alcohol is used for activating amino acid, the coupling reaction degree is high, and the target peptide yield is high. The preparation method of the tilpotide has the advantages of being simple, economical, capable of achieving mass production, low in impurity content, high in purification yield, high in yield and the like.

The invention relates to the technical field of scale and corrosion inhibitors, in particular to a preparation method and application of an enhanced boric acid efficient environment-friendly phosphorus-free scale and corrosion inhibitor, and the enhanced boric acid efficient environment-friendly phosphorus-free scale and corrosion inhibitor comprises the following components in parts by weight: 50-100 parts of a water-soluble polyol-boric acid mixture, 0-50 parts of polyepoxysuccinic acid, 0-50 parts of polyaspartic acid, 0-50 parts of benzotriazole and 0-50 parts of zinc chloride. The high intermiscibility of polyhydric alcohol, water and boric acid is utilized, the dosage of boric acid in a solution is effectively increased, the effects of boric acid on scale inhibition, corrosion inhibition, sterilization and the like are amplified, meanwhile, the freezing temperature of the scale and corrosion inhibitor is reduced due to the addition of polyhydric alcohol, the scale and corrosion inhibitor can be used in winter more easily, and the scale and corrosion inhibitor is suitable for popularization and application. The invention provides an implementation way of a novel efficient environment-friendly phosphorus-free scale and corrosion inhibitor, and the scale and corrosion inhibitor has the advantages of environment friendliness, convenience in use and good scale and corrosion inhibition performance.

The invention discloses a polytetrafluoroethylene compensator with good corrosion resistance and a preparation method thereof.The polytetrafluoroethylene compensator is composed of a corrugated pipe, a pipe connecting flange and an end flange, the pipe connecting flange and the end flange are located at the two ends of the corrugated pipe, the corrugated pipe is composed of a lining layer and a base material layer, and the base material layer is made of stainless steel; the preparation method comprises the following steps: firstly, carrying out surface grafting on nano aluminum oxide by using isocyanate silane, and introducing an active reaction group; then part of active groups react with benzotriazole, so that the corrosion inhibition and adhesion enhancement functions are realized; finally, enabling the residual active groups to react with hydroxylated polytetrafluoroethylene activated by alkali treatment, and coating a chemical inert layer on the surface of the residual active groups; the obtained core-shell structure functional filler is dispersed in epoxy resin to prepare a coating, and after the coating is coated on a stainless steel base material and cured, a high-performance compensator with high hardness, strong adhesive force, excellent corrosion resistance and weather resistance is formed.

The invention relates to a TSV (through silicon via)-based copper / titanium / TEOS (tetraethyl orthosilicate) rate selective control CMP (chemical mechanical polishing) solution. The polishing solution is prepared from nanoscale silicon dioxide, a complexing agent, an inhibitor, a surfactant, an oxidizing agent and deionized water, the pH value of the alkaline polishing solution is 8.0; the invention discloses a polishing solution. 2, 2 '-[[((methyl-1H-benzotriazole-1-yl) methyl] imino] diethanol (TT-LYK) and octyl hydroxamic acid (OHA) are used as inhibitors, the two inhibitors act independently or are compounded, and under the synergistic effect of the inhibitors and the complexing agent, the polishing solution has the high polishing rate and the good surface quality performance, meanwhile, the rate of copper / titanium / TEOS can be selectively controlled, and the polishing effect is good. And dish-shaped recesses and dielectric layer erosion after polishing are improved. The polishing solution prepared by the invention is simple in preparation process and easy for large-scale production, and meets the actual requirements of industrial application.

The invention belongs to the field of daily chemicals, and discloses a preparation method of a sunscreen composition, which comprises the following steps: step 1, mixing and dispersing sodium stearoyl glutamate, a part of a thickener, a part of an alcohol solvent and a part of water; step 2, adding a sun-screening agent into the mixture obtained in the step 1; 3, grinding the mixture obtained in the step 2; 4, emulsifying and homogenizing the residual thickening agent, the residual alcohol solvent, the residual water and the mixture obtained in the step 3; the sun-screening agent contains methylene bis (benzotriazolyl) tetramethyl butyl phenol; the weight ratio of the sodium stearoyl glutamate to the methylene bis-benzotriazolyl tetramethyl butyl phenol is (2-7): (45-55). According to the sunscreen composition disclosed by the invention, wide experimental verification shows that the sodium stearoyl glutamate and the methylene bis-benzotriazolyl tetramethyl butyl phenol have obvious sunscreen synergy. Meanwhile, the invention also discloses the composition and application thereof.

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.

The invention provides a thermoplastic polyester elastomer as well as a preparation method and application thereof. The thermoplastic polyester elastomer comprises aromatic dibasic acid residues and aliphatic polyol residues, on the basis that the total molar weight of the aliphatic polyol residues is 100 mol%, the aliphatic polyol residues comprise 66 to 95 mol% of micromolecular diol residues, 2 to 24 mol% of polymer polyol residues and 1.5 to 10 mol% of third polyol residues; the third polyhydric alcohol residues comprise residues derived from a benzotriazole compound and residues derived from a tetramethyl piperidine compound. The thermoplastic polyester elastomer is good in light aging resistance, the surface of a workpiece is not separated out in the processing process and after the thermoplastic polyester elastomer is placed for a long time, and the requirement of automobile interiors for color change of light-color materials after light aging is met.

The invention discloses a composite current collector containing a PTC material and a preparation method thereof, and relates to the technical field of current collectors, and the composite current collector comprises a polymer base film and copper metal layers located on the upper and lower surfaces of the polymer base film. The polymer base film is prepared from the following raw materials in parts by weight: 100 to 110 parts of modified polypropylene, 20 to 25 parts of modified PTC (Positive Temperature Coefficient) material, 1.2 to 1.4 parts of lubricant, 0.3 to 0.5 part of initiator and 14 to 18 parts of filler. According to the synthesized modified polypropylene, benzotriazole and an epoxy group are grafted into a polypropylene molecular chain, so that the binding power of a polymer base film and a copper metal layer and the corrosion resistance of the composite current collector are improved. The synthesized modified PTC material is obtained by loading a thiophene ring and DOPO on nano barium titanate, so that the composite current collector has relatively high ultraviolet resistance, flame retardance and thermal runaway resistance. The composite current collector containing the PTC material is high in use safety in a battery and worthy of popularization and application.

The present invention relates to the technical field of cutting fluids, and in particular to a water-based high-lubricity cutting fluid and a preparation method thereof, comprising triethanolamine, an oily corrosion inhibitor, a lubricating additive, benzotriazole, a surfactant, a potassium hydroxide solution, a pH regulator and deionized water. The water-based high-lubricity cutting fluid in the present invention is compounded by lubricating additives, triethanolamine, an oily corrosion inhibitor, benzotriazole, a surfactant and the like, wherein the sulfide fatty acid ester embedded in the lubricating additive is thrown out from the pores under the action of centrifugal force when subjected to a high centrifugal speed, and adheres to the metal surface to form a dense sulfide film, which plays a lubricating role, can effectively reduce shear stress, reduce friction and power consumption, reduce the temperature of the friction part between the tool and the workpiece and the tool wear, improve the cutting performance of the workpiece material, and improve the lubrication performance of the cutting fluid, so that it has the characteristics of small usage and high cutting quality.

The invention relates to the technical field of road crack repairing materials, in particular to a high-strength polyurethane-based road crack repairing material and a preparation method thereof. The composite material is prepared from the following components in parts by weight: 5 to 10 parts of 1, 4-butanediol, 3 to 8 parts of modified nano silicon dioxide, 10 to 20 parts of superfine calcium carbonate, 8 to 12 parts of chopped basalt fiber, 0.5 to 2 parts of 2-(2H-benzotriazole-2-yl)-4, 6-di-tert-pentylphenol, 0.3 to 1.5 parts of carbodiimide and 0.3 to 0.8 part of organic tin-amine composite catalyst. The mechanical strength and the temperature resistance of the material are remarkably improved through a rigid annular structure of dicyclohexylmethane diisocyanate, the material is endowed with elasticity and deformation resistance through a flexible chain segment of polyester polyol, and a repairing layer can bear load impact and can adapt to crack expansion deformation through the synergistic effect of dicyclohexylmethane diisocyanate and polyester polyol; the composite action of the fibers and the filler can disperse stress concentration, reduce the risk of secondary cracking caused by temperature shrinkage or load, and realize long-term stability of crack repair.