38 results about "Diethylene triamine" patented technology

The invention relates to the technical field of OLED (Organic Light Emitting Diode) manufacturing process etching processes, in particular to a silver etching solution for an OLED manufacturing process as well as a preparation method and application of the silver etching solution. The silver etching liquid comprises nitric acid, phosphoric acid, a buffer agent, a metal ion chelating agent and an ionic liquid inhibitor, the ionic liquid inhibitor comprises 1-butyl-3-methylimidazole phosphate, the metal ion chelating agent is selected from at least one of pyromellitic acid, diethylenetriamine pentaacetic acid and ethylenediamine tetramethylene phosphoric acid, and the buffer agent is selected from at least one of sodium chloride, sodium chloride and sodium chloride. The buffering agent comprises acetic acid, and all the components are prepared according to a specific mass ratio. The etching solution can balance the etching rate of silver and indium tin oxide, avoid silver residues and black spot defects, prolong the service life of the solution, reduce the use of a volatile buffer agent, adapt to the OLED fine manufacturing process, improve the product yield and reduce the production cost, and is suitable for etching of a metal substrate in the OLED manufacturing process.

The invention relates to a selective nanofiltration membrane as well as a preparation method and application thereof. The selective nanofiltration membrane comprises a support layer and a separation layer, the separation layer is obtained through interfacial polymerization of an oil-phase reactant and a water-phase reactant; the water-phase reactant comprises a negatively charged monomer and a positively charged monomer; the positively charged monomer comprises any one or a combination of at least two of polyvinylamine, polyethyleneimine, diethylenetriamine, water-soluble chitosan, quaternized polyethyleneimine, polyallylamine or triethylene tetramine. According to the method, monomers with different charges are added into a water phase, so that the nanofiltration membrane is wholly charged and neutral, the interception of sodium sulfate can be effectively reduced, the interception of antibiotics is increased, and the separation of the antibiotics and inorganic salts can be efficiently promoted.

The present application relates to a kind of carbon dioxide mineralization method and carbon dioxide mineralization device.The carbon dioxide mineralization method includes the following steps: mixing absorption liquid and industrial solid waste at room temperature, obtain mortar;Make mortar solid-liquid separation, obtain clear liquid and thick slurry;Carbon dioxide in flue gas is absorbed by clear liquid, obtain carbon-rich absorption liquid;Carbon-rich absorption liquid and thick slurry occur mineralization reaction at 180 DEG C-220 DEG C, obtain mineralized slurry;Make mineralized slurry solid-liquid separation, obtain mineralized ash and mineralized clear liquid;Wherein, absorption liquid includes inorganic base and organic base, organic base includes monoethanolamine, diethanolamine, triethanolamine, 3-methylaminopropylamine, N-methyl diethanolamine, piperazine, diethylene triamine, triethylene tetramine, tetraethylene pentamine and 2-amino-2-methyl-1-propanolamine at least two kinds.The method greatly improves CO2 capture rate and CO2 utilization rate, and organic base consumption is less, absorption liquid regeneration energy consumption is low, and overall economy is good.

The application discloses an oil and gas field polymer solution viscosity protection system with improved ferrous ion tolerance, and belongs to the technical field of oil and gas field chemicals.The system comprises the following components in mass percentage: 5-10% of a ferrous ion stabilizer, 10-20% of a free radical capturing agent, 10-20% of a structure reinforcing agent, 5-10% of a synergist, and the balance of water; the ferrous ion stabilizer is at least one selected from sodium gluconate, potassium gluconate, diethylene triamine pentaacetic acid and hydroxyethylidene diphosphonic acid; the free radical capturing agent is a compound containing phenolic hydroxyl; the structure reinforcing agent is an imidazoline compound; and the synergist is an aldehyde compound.The application method of the viscosity protection system is as follows: the viscosity protection system is first added into liquid water, polymer powder is then added, a gel breaker is further added, and stirring is uniformly performed to obtain a polymer solution.The viscosity protection system significantly reduces the influence of ferrous ions on the viscosity of the polymer solution, and improves the application effect of polyacrylamide substances in the field of oil and gas fields.

The invention discloses an in-situ leaching liquid injection system and method for high-altitude ionic rare earth ore, and belongs to the field of rare earth hydrometallurgy. The system is composed of a liquid injection well pattern, a layered liquid injection device, a first liquid supply system, a second liquid supply system and a collection system. Exploring the thickness of an ore body weathering crust and vertical distribution of rare earth / impurities; the liquid injection hole is vertically divided into an upper layer liquid injection area (1 / 3-1 / 2 of the upper part) and a lower layer liquid injection area (1 / 2-2 / 3 of the lower part); a 1.0-1.4 wt% low-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the upper layer, and co-leaching of impurities such as aluminum and iron is reduced; 1.5-2.5 wt% of high-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the lower layer to ensure efficient leaching of rare earth; and rare earth-rich leaching liquid is collected. Compared with a traditional full-layer high-concentration process, the method has the advantages that the use amount of a leaching agent is reduced by 20-40% while the rare earth leaching rate is kept to be larger than or equal to 90%, the aluminum ion concentration of the leachate is reduced by 30-60%, the agent cost and the follow-up impurity removal load are remarkably reduced, and the method is particularly suitable for the high-altitude, low-temperature, low-air-pressure and thick-weathered crust environment.

The application provides an anti-carbon dioxide corrosion inhibitor, a preparation method and application thereof, and relates to the technical field of oil and gas field corrosion protection. The application provides an inhibitor, raw materials of which include alpha-lipoic acid, diethylene triamine, formaldehyde, 2-naphthyl ethyl ketone and benzyl chloride in a molar ratio of 1.0-1.2:0.8-1.2:1.2-2.0:1.0-1.4:1.0-1.4. The application also provides a preparation method, raw materials are taken according to the molar ratio, alpha-lipoic acid and diethylene triamine are mixed to obtain a first product through reaction; formaldehyde and 2-naphthyl ethyl ketone are mixed with the first product to obtain a second product through reaction; benzyl chloride and the second product are mixed to obtain a finished product inhibitor through reaction. The application also provides application of the inhibitor in preventing carbon dioxide corrosion. The inhibitor has good corrosion inhibition effect, a simple preparation method, a stable structure, and still has superior corrosion inhibition effect in a high salinity environment.

The invention discloses an HRP chemiluminescent substrate system, a kit and a preparation method, the HRP chemiluminescent substrate system is composed of a liquid A and a liquid B which are physically isolated and stored; the solution A is an alkaline buffer system with the pH value of 9.0-9.6, and comprises isoluminol or a salt substrate thereof, a cationic surface active agent CTAC and a metal chelating agent diethylene triamine pentaacetic acid; and the solution B is an acidic solution with the pH value of 4.5-5.5, and comprises an oxidizing agent and a reinforcing agent N-(3-chloro-4-hydroxyphenyl) acetanilide. According to the invention, the reinforcing agent N-(3-chloro-4-hydroxyphenyl) acetanilide is placed in the acidic liquid B, when the acidic liquid B is mixed with the alkaline liquid A, the mixed system is maintained at a specific pH value of 8.3-8.6, and the reinforcing agent is rapidly dissociated into phenoxy anions; and carrying out in-situ capture and enrichment on a micelle interface by CTAC cationic micelles with positive charges, which exist in the solution A in advance, through electrostatic attraction. And in cooperation with a low-ion-strength environment brought by no buffer salt in the liquid B, the system ensures the high activity of the HRP enzyme, realizes directional interface catalysis of the enhancer, and significantly improves the luminous efficiency and stability.

The invention discloses a method for extracting tellurium from a sodium tellurite solution through electrodeposition, and belongs to the technical field of non-ferrous metal hydrometallurgy. The method comprises the following steps: dissolving crude tellurium dioxide in a sodium hydroxide solution at 60-90 DEG C to prepare a sodium tellurite electrolyte containing 200-240 g / L of tellurium and 90-110 g / L of sodium hydroxide; in the electrodeposition process, a composite additive composed of sodium ascorbate, pentasodium diethylenetriamine pentaacetate, sodium citrate and polyvinylpyrrolidone is synchronously added into the electrolyte. And carrying out electrodeposition for 14-15 days under the conditions that the current density is 40-60A / m, the voltage is 15-30V and the temperature is 15-30 DEG C. Through the synergistic effect of the composite additive, tellurite radicals in the anode region are remarkably inhibited from being oxidized into insoluble sodium tellurate, heavy metal impurity ions in the electrolyte are strongly complexed, and therefore the direct recovery rate of tellurium is increased to 90% or above while the better current efficiency is kept, and the purity of the obtained tellurium ingot reaches 99.95% or above.

The application discloses a culture medium and a process method for reducing cell lactic acid accumulation, which is based on a cell basic culture medium, and after removing original copper ion compounds and DTPA, nitrilotriacetic acid, citric acid and histidine in the basic culture medium, contains the following components and concentration ranges: copper chloride 0.2-0.5 mg / L, copper nitrate 0.2-0.5 mg / L, copper sulfate 0.2-0.5 mg / L, diethylene triamine pentaacetic acid 1-5 mg / L, nitrilotriacetic acid 1-5 mg / L, citric acid 1-5 mg / L, and histidine 0.5-3 g / L; the mass concentration ratio of the copper chloride, the copper nitrate and the copper sulfate is 1:1-5:1. Compared with the prior art, the application has the advantages that: compared with the prior art, the culture medium of the application can inhibit lactic acid generation and promote lactic acid oxidation and decomposition through the synergistic effect of copper ions, chelating agents and metabolism-related substances, and the effect of reducing lactic acid accumulation is remarkable.

The invention relates to a preparation method of ultra-pure electronic-grade pentamethyldiethylenetriamine, and belongs to the technical field of purification of electronic chemicals. The invention aims to solve the technical problem that a by-product N, N-dimethyl piperazine in industrial-grade PMDETA is difficult to efficiently remove. According to the method, industrial-grade PMDETA is used as a raw material, and the method sequentially comprises the steps of microfiltration, ion exchange, vacuum distillation and nanofiltration. Wherein the step of vacuum rectification is carried out under the conditions that the absolute pressure is 1.0-8.0 kPa, the temperature of a tower kettle is 125-160 DEG C and the reflux ratio is 2: 1-6: 1, and efficient separation of N, N-dimethyl piperazine and PMDETA is realized by accurately controlling process parameters. The purity of the finally prepared PMDETA product is larger than 99.99%, the content of N, N-dimethyl piperazine is lower than 16 ppm, meanwhile, the content of metal ions is lower than 10 ppt, the number of particles meets the electronic grade standard, and the method is suitable for the fields of semiconductor and integrated circuit manufacturing and the like.

The invention belongs to the field of uranium removal materials, and provides uranium adsorption montmorillonite / chitosan composite hydrogel and a preparation method and application thereof.The preparation method comprises the steps that a diethylenetriaminepenta (methylene phosphonic acid) solution is added into a chitosan suspension to adjust the pH to be acidic, a reaction is conducted, and an organic phosphonated chitosan solution is obtained; mixing the organic phosphonated chitosan solution with a montmorillonite suspension, and carrying out an intercalation reaction to obtain a mixed solution; mixing the mixed solution with a potassium tripolyphosphate solution, carrying out a first cross-linking reaction to obtain a flocculent suspension, carrying out solid-liquid separation, and dissolving the flocculent suspension in water again to obtain a suspension; and uniformly mixing the suspension liquid with a sodium alginate solution, dropwise adding the mixture into a calcium salt solution, carrying out a second cross-linking reaction to obtain gel microspheres, and carrying out solid-liquid separation and washing to obtain the uranium adsorption montmorillonite / chitosan composite hydrogel. According to the preparation method disclosed by the invention, a potassium tripolyphosphate cross-linked organic phosphonated chitosan molecular chain is successfully introduced into a montmorillonite interlayer structure, so that the morphology structure of original montmorillonite is greatly improved, active sites on the montmorillonite lamellar structure are enriched, and the application efficiency of montmorillonite in uranium-containing wastewater is improved.

The invention discloses a modified montmorillonite-based lubricant and a preparation method thereof, and belongs to the technical field of lubricants, oleic acid and diethylenetriamine are cyclized and quaternized to prepare an oleic acid-based imidazoline quaternary ammonium salt corrosion inhibitor, the oleic acid-based imidazoline quaternary ammonium salt corrosion inhibitor is used for organic modification of nano montmorillonite, a silane coupling agent is further adopted for silanization treatment, and the modified montmorillonite-based lubricant is prepared. The preparation method comprises the following steps: preparing silane modified corrosion-inhibition montmorillonite, carrying out in-situ polymerization coating by taking a urea-formaldehyde prepolymer as a wall material to form montmorillonite modified corrosion-inhibition microcapsules, and carrying out copolymerization on acrylic acid, N, N-bis (2-hydroxyethyl) aminomethylene diethyl phosphonate and trifluoromethacrylate to obtain the modified polyacrylate dispersant with heat-resistant and dispersion-stable functions. The microcapsule, a dispersing agent, dibasic acid ester oil, PAO base oil and an antioxidant are compounded in proportion to form the modified montmorillonite-based lubricant.

The invention relates to a method for jacketing elongate articles, such as lines or cable harnesses in particular, by means of an adhesive tape comprising a tape-shaped substrate, which substrate has, on at least one side, a thermally curable, meltable, preferably pressure-sensitive adhesive layer, the adhesive layer comprising an epoxide-functionalized acrylonitrile-butadiene copolymer which has on average more than 1.5 epoxide groups per molecule and comprising the reaction product of phthalic anhydride and diethylene-triamine, the adhesive tape being led in a helix around the elongate article or the elongate article being enveloped by the adhesive tape in the axial direction, the elongate article together with the enveloping adhesive tape being brought into the desired arrangement, in particular into the cable harness plan, the elongate article being held in this arrangement, and the curable adhesive mass being cured by supplying thermal energy, in particular at a temperature of up to 110° C.

The present application provides a kind of bio-based flame retardant-nano calcium carbonate, preparation method and its application in epoxy resin, the present application uses chemical synthesis reaction, preparation with vanillin, polyethylene imine, diethylene triamine and phytic acid as raw material, design multi-arm dendritic compound, combine molecular modification technology, synthesis green environmental protection biomass-based novel flame retardant Trif-V-PP with acid source, carbon source and gas source function, can enhance the flame retardant performance of epoxy resin.In addition, Trif-V-PP is combined with nano calcium carbonate, and the flame retardant performance and mechanical property of epoxy resin can be further enhanced.

The application relates to the technical field of silver-coated nickel powder preparation, in particular to silver-coated nickel powder with compact silver layer and a preparation method, which comprises the following steps: adding nano silver ions, sodium dodecyl benzene sulfonate, deionized water and ethanol into a reaction kettle and stirring, then adding nickel powder after acid washing and sodium potassium tartrate and stirring, adding sodium hydroxide in the stirring process to obtain a nickel powder reduction liquid; adding silver nitrate and diethylene triamine into deionized water, uniformly stirring to obtain a silver source solution, heating the nickel powder reduction liquid in the reaction kettle, dropping the silver source solution into the nickel powder reduction liquid for chemical reaction, obtaining local reaction intensity and reaction consistency of each temperature measuring point in the reaction process, then obtaining reaction abnormality to obtain an expected reaction temperature, and cleaning to obtain wet powder of the silver-coated nickel powder after the reaction is completed, and the silver-coated nickel powder body with compact silver layer is prepared through drying. The application can improve the adjustment precision of the silver coating reaction temperature and guarantee the preparation quality of the silver-coated nickel powder body.

The application provides a non-acid composite active plug removing agent and a preparation method thereof, and belongs to the technical field of plug removing agents.The non-acid composite active plug removing agent comprises the following raw materials: ethylene-vinyl acetate copolymer, a solvent, a mutual solvent, an organic sulfonate, diethylene triamine pentaacetic acid, sodium gluconate, a pH regulator, benzotriazole, hydroxyethyl ethylenediamine triacetic acid and methanol.The non-acid composite active plug removing agent is composed of an organic sulfonate, various active agents and a penetrating agent and the like.Through the penetration and dispersion of molecules, various types of plugging materials in the rock gap throat are dispersed, the pore throat is increased, and an effective seepage channel is formed.The non-acid composite active plug removing agent prepared by the application does not corrode and damage metal pipes and the dense rock body, is not acid-sensitive, does not cause flowback pollution, has a long plug removing and dredging distance, has a good and long-lasting effect, and is a new method for deep plug removing.

The application discloses a method for simultaneously removing ash, reducing acid value and reducing total sediment of ship oil-containing pollutants, and belongs to the technical field of waste oil regeneration and utilization. The method aims to solve the problems of complex process and inability to simultaneously and efficiently remove various impurities in the prior art for treating ship oil-containing pollutants. The ship oil-containing pollutant raw material is heated to 75-85 DEG C, 5% of the raw material by mass of a composite treatment agent composed of polyoxypropylene polyoxyethylene ether block copolymer, triethanolamine, diethylene triamine and solvent oil is added, and constant temperature reaction is carried out for 1-2 hours; then 5% of the raw material by mass of water is added, and constant temperature reaction is continuously carried out for 1-2 hours; finally, the mixture is heated to 90-95 DEG C and then centrifugal separation is carried out, so that qualified marine fuel oil is obtained. The method has one-dose multi-effect and integrated process, and the process is simple; ash, acidic substances and total sediment in the raw material can be efficiently and synergistically removed; the product quality meets the national standard requirements; and the method has remarkable economic and environmental protection benefits.

The present application relates to the technical field of artificial stone preparation, in particular to a resin-based artificial stone and a preparation method thereof. The artificial stone comprises the following components in parts by mass: coal gangue 38-45 parts, carbide slag 28-34 parts, desulfurization gypsum 20-30 parts, mineral powder 18-26 parts, water-based epoxy resin 30-45 parts, diethylene triamine 5-10 parts, modified polyurethane fiber 10-15 parts, and quartz sand 220-260 parts. The present application uses solid waste such as coal gangue as a component of the artificial stone, realizes resource utilization, reduces cost, and adds modified polyurethane fiber to effectively improve the performance of the prepared artificial stone.

The invention belongs to the field of semiconductor processing, and particularly relates to a chemical mechanical polishing solution as well as preparation and application thereof. The chemical mechanical polishing solution provided by the invention comprises the following components: a mixed abrasive particle dispersion liquid, a corrosive agent, an auxiliary agent and water, the mixed abrasive particle dispersion liquid comprises mixed abrasive particles, a dispersing agent and water; the dispersing agent is one or more of a polyethylene oxide-epoxy polypropylene-polyethylene oxide triblock polymer, a phosphate ester copolymer, modified polyethyleneimine, an acrylic acid-acrylamide copolymer ammonium salt, sodium pyrophosphate, polyvinylpyrrolidone and a perfluoroethyl ethanol polyoxyethylene ether agent; the auxiliary agent is one or more of perfluoroalkyl ethyl methacrylate, gamma-aminopropyltriethoxysilane, nitrilo trimethylene phosphonic acid, polyether modified silicone oil, diethylene triamine penta (methylene phosphonic acid), zirconium methacrylate and sodium hexametaphosphate. The polishing solution provided by the invention is stable in corrosion rate, and the chemical mechanical polishing rate and the polishing quality of the SiC substrate can be improved.

The application discloses carbon nanodots for resisting multi-drug resistant bacterial biofilm and a preparation method and application thereof. The carbon nanodots are prepared as follows: taking dopamine hydrochloride and diethylene triamine as raw materials, dissolving in deionized water, transferring the reaction solution to a reaction kettle, reacting at 80-200 DEG C for 1-24h, and subjecting the reaction product to dialysis and freeze-drying to obtain the carbon nanodots. The prepared carbon nanodots are used for resisting multi-drug resistant bacteria, methicillin-resistant Staphylococcus aureus (MRSA) biofilm. The results show that the carbon nanodots have excellent performance of inhibiting the formation of MRSA biofilm and eliminating mature MRSA biofilm. In addition, the carbon nanodots can be applied to the preservation of perishable foods such as strawberries. The preparation method is simple and easy to operate, has low cost and good reproducibility, provides entities and technical guidance for the prevention and treatment of biofilm related infections and food safety protection, and provides a basis for the preparation and application of multifunctional antimicrobial materials.

The invention discloses an ultrahigh-strength medium-modulus carbon fiber surface treatment method, a surface modified carbon fiber and a composite material, the surface treatment method comprises the following steps: (1) carrying out first-stage anodic oxidation treatment on ultrahigh-strength medium-modulus carbon fibers by adopting a nitric acid solution so as to generate carboxyl active functional groups on the surfaces of the ultrahigh-strength medium-modulus carbon fibers; (2) washing and drying the carbon fibers obtained in the step (1); and (3) carrying out second-stage anodic oxidation and electrochemical grafting treatment on the carbon fibers obtained in the step (2) by adopting a mixed electrolyte containing ammonium bicarbonate and diethylenetriamine so as to form nitrogen-containing active groups on the surfaces of the carbon fibers. By means of the method, surface treatment of the ultrahigh-strength medium-modulus carbon fibers can be achieved, the tensile strength and the tensile modulus of the treated carbon fibers are not reduced, and meanwhile the problem that the requirement for the strength of the ultrahigh-strength medium-modulus carbon fiber composite short beam is high is solved.

The invention relates to the technical field of equipment cleaning agents, and particularly discloses a ferrous sulfide cleaning passivator. The ferrous sulfide cleaning passivator comprises, by weight, 0.5-2 parts of an oxidizing agent, 0.3-1 part of a chelating agent, 0.5-5 parts of a stabilizer, 0.2-1 part of a pH regulator and 90-100 parts of water. The oxidizing agent is one or more of sodium perborate, peracetic acid, potassium peroxymonosulfonate, butanedione and nitrobenzoic acid; the chelating agent is selected from one or more of ethylene diamine tetraacetic acid disodium salt, 1-hydroxyethylidene-1, 1-diphosphonic acid, amino trimethylene phosphonic acid, diethylene triamine penta (methylene phosphonic acid), glutamic acid tetrasodium diacetate and methylglycine trisodium diacetate. The ferrous sulfide cleaning and passivating agent provided by the invention has efficient cleaning and passivating effects, is environment-friendly and has a good application prospect.

The application belongs to the technical field of medical materials, and particularly relates to an alkaline phosphatase enzyme label buffer and an alkaline phosphatase enzyme label reagent. The alkaline phosphatase enzyme label buffer in the technical scheme of the application comprises a first chelate formed by nitrilotriacetic acid (NTA), diethylene triamine pentaacetic acid (DTPA) and magnesium ions and a second chelate formed by methionine, threonine and zinc ions, and further comprises the following components in percentage by mass: 0.2-2.0% reduced glutathione, 1.0-2.5% corn peptide, 0.5-10.0% protein, 0.1-2.0% ginsenoside, 0.1-1.0% surfactant, 1.0-5.0% saccharide compound, 1.0-10.0% polyhydric alcohol, 0.05-0.1% preservative and 0.01-0.05% antibiotic, and the rest is non-ionic amphiphilic buffer. The first chelate formed by nitrilotriacetic acid, diethylene triamine pentaacetic acid and magnesium ions and the second chelate formed by methionine, threonine and zinc ions are used in combination, and glutathione, protein and other substances are combined to obtain the alkaline phosphatase enzyme label buffer with long-term stability.

The invention relates to the field of oil and gas exploitation, in particular to a corrosion inhibitor for carbon dioxide corrosion and a preparation method thereof. The corrosion inhibitor for carbon dioxide corrosion comprises the following components: foots, sodium hydroxide, a paper pulp by-product, sulfuric acid, m-phenylenediamine, rosin amine, diethylenetriamine and EDTMP, and the paper pulp by-product is a by-product obtained by using wood as a raw material and preparing paper pulp through a sulfate method. The corrosion inhibitor for carbon dioxide corrosion not only is low in cost, but also is low in corrosion rate.

The application discloses a kind of minoxidil mixed solution and preparation method thereof, it is related to pharmaceutical preparation field.The application is prepared when minoxidil mixed solution, dialdehyde cellulose, minoxidil, diethylene triamine are reacted by emulsion method to obtain cellulose microspheres;Methyl bromide, iodomethane are reacted to obtain modified cellulose microspheres by cellulose microspheres;Octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane are reacted to obtain polysiloxane;Polysiloxane, allyl polyether, chloroplatinic acid are reacted to obtain modified polysiloxane;Modified polysiloxane, modified cellulose microspheres, deionized water are uniformly mixed to obtain minoxidil mixed solution.The minoxidil mixed solution prepared by the application has good bacteriostasis, fat-soluble release, foam stability and low irritation.

The invention discloses a preparation method of a diethylenetriaminepenta (methylene phosphonic acid) rare earth compound, a copolymer composite material and a preparation method of the copolymer composite material. The preparation method of the diethylenetriaminepenta (methylene phosphonic acid) rare earth compound comprises the following steps: mixing a diethylenetriaminepenta (methylene phosphonic acid) aqueous solution with a rare earth salt aqueous solution to prepare a first suspension, the rare earth ions in the first suspension and [DETPMP-H15-n] n-ions dissociated from diethylenetriaminepenta (methylene phosphonic acid) in an aqueous solution are subjected to a coordination binding reaction, and n is a positive integer smaller than 15; reacting the first turbid liquid with polytetrafluoroethylene in a high-pressure reaction kettle for 18-24 hours, so that the rare earth ions and the [DETPMP-H15-n] n-ions are further coordinated and combined to form an aqueous solution containing a diethylenetriaminepenta (methylene phosphonic acid) rare earth compound; and extracting the diethylene triamine penta (methylene phosphonic acid) rare earth compound. The method is simple, efficient, safe and reliable.

The invention provides a high-molecular organic composite suspending agent and a preparation method thereof, and belongs to the technical field of high-molecular materials, and the suspending agent comprises a high-molecular copolymer, an S-PEGMA copolymer, a PNIPAM-Q-CNC composite microsphere suspension, a zirconium complex-silane coupling agent composite system and the like. The high-molecular copolymer is prepared by reacting components such as a PS-Br initiator, 2-acrylamide-2-methylpropanesulfonic acid and the like with cuprous bromide, pentamethyldiethylenetriamine and lauryl mercaptan. The S-PEGMA copolymer is prepared by reacting dipentaerythritol, methacrylic acid, p-toluenesulfonic acid, hydroquinone and the like and then reacting with polyethylene glycol methacrylate and azodiisobutyronitrile. The preparation method comprises the following steps: hydrolyzing microcrystalline cellulose, modifying with glycidyl trimethyl ammonium chloride to prepare Q-CNC, and reacting with N-isopropylacrylamide, N, N '-methylene bisacrylamide and ammonium persulfate to prepare a PNIPAM-Q-CNC composite microsphere suspension.

The application provides a TSV copper layer CMP polishing solution with low dish-shaped recess and a preparation method thereof, and comprises the following components according to the total mass of the polishing solution: 10wt%-15wt% of composite abrasive; 0.01wt%-0.5wt% of inhibitor, wherein the inhibitor is composed of benzotriazole and 3-amino-1,2,4-triazole; 0.1wt%-2wt% of complexing agent, wherein the complexing agent is composed of diethylene triamine penta (methylene phosphonic acid), ethylenediamine and triethanolamine; 0.5wt%-3wt% of oxidizing agent; and pH regulator. The application adopts fumed silica and silica sol to form a composite abrasive system, which can ensure a high removal rate of the copper layer, help to reduce the surface roughness after polishing, and thus balance the polishing efficiency and surface quality; and the application adopts benzotriazole and 3-amino-1,2,4-triazole to form an inhibitor system, which can reduce the degree of dish-shaped recess and erosion, and improve the overall planarization effect.

The application discloses a kind of pipeline temperature-resistant pressure-resistant anticorrosive coating and preparation method thereof, it is related to engineering coating technical field, including the following weight parts components: 50-60 parts of phenolic epoxy resin, 5-10 parts of curing agent, 6-8 parts of ethylene glycol diglycidyl ether, 2.6-3.3 parts of diethylene triamine propyl trimethoxysilane, 2.2-3.5 parts of modified short carbon fiber, 0.9-1.2 parts of aluminum tripolyphosphate, 0.12-0.25 parts of tourmaline, 0.02-0.35 parts of phenol sulfonic acid.The application has the adsorption capacity and porous characteristics of tourmaline firmly combined with each component, by modified short carbon fiber and tourmaline combination adsorption, so as to significantly enhance the pressure resistance of the anticorrosive coating, and make the anticorrosive coating anticorrosive performance of aluminum tripolyphosphate and tourmaline synergistically improved, to realize the purpose of low cost, high strength, high temperature resistance and effective corrosion protection.