28 results about "Ammonium borate" patented technology

Intumescent composition comprising an acid donor (A), a carbon donor (B), a binder polymer (C) and a blowing agent (D). The acid donor (A) is selected from the group consisting of ammonium polyphosphate, ammonium dihydrogen phosphate, ethylenediamine phosphate, ammonium pentaborate, guanylurea phosphate, diguanidine phosphate and mixtures thereof. The carbon donor (B) is selected from the group consisting of glucose, arabinose and other monosaccharides, lactose, maltose and other disaccharides, starch, cellulose, dextrin and other polysaccharides, sorbitol, erythritol, pentaerythritol, dipentaerythritol, mannitol and other polyhydric alcohols and mixtures thereof. The blowing agent is provided in the form of microsphere particles comprising a thermoplastic polymer shell encapsulating a propellant, which microsphere particles are expandable microspheres.

An object of the present invention is to provide a compound useful as a cocatalyst for use in the polymerization reactions of olefins, dienes and acetylenes. According to the present invention, there can be provided a fluorinated alkylammonium borate compound represented by the following formula (1) [the definitions of the respective symbols in the formula are as described in the specification.] which is useful and highly active as a cocatalyst for use in the polymerization reactions of olefins, dienes and acetylenes, a composition containing the same, and a method for producing them. #imgabs0#

The application relates to a three-dimensional hollow network structure boron nitride, and a main process of a preparation method thereof is as follows: taking citric acid, sodium borate and strontium carbonate as raw materials, a boron-containing precursor is obtained through a sol-gel method; then, the boron-containing precursor is pre-nitridated under a nitrogen-containing atmosphere to obtain a pre-nitridation product; next, the pre-nitridation product is uniformly mixed with ammonium borate and ammonium chloride through ball milling, and then is placed into a high-pressure reaction kettle to react, so that the three-dimensional hollow network structure boron nitride is obtained. The three-dimensional hollow network structure boron nitride prepared by the application has a connected network structure formed by multiple cavity units, has high purity, provides a new idea for preparation of a hollow boron nitride structure, and has a good application prospect in the fields of gas adsorption, water pollution treatment, hydrogen storage and a drug carrier.

The invention relates to the technical field of aluminum soldering flux, and particularly discloses flux core soldering flux for an aluminum brazing tin wire and a preparation method and application of the flux core soldering flux. The flux core soldering flux for the aluminum brazing tin wire comprises the following components in parts by mass: 15 to 25 parts of ammonium salt, 53 to 64 parts of triethanolamine, 10 to 19 parts of zinc citrate, 1 to 8 parts of stannous salt, 0.4 to 1.2 parts of fluorine surfactant, 0.5 to 2 parts of corrosion inhibitor and 0.1 to 0.8 part of defoaming agent. The amine salt is a compound of ammonium fluoride, ammonium fluoborate and ammonium dihydrogen phosphate. The method has the advantage of improving the aluminum material welding quality.

The invention belongs to the technical field of semiconductors, particularly relates to an efficient and uniform TiN film layer cleaning process and device, discloses a cleaning process and device named'efficient and uniform TiN film layer cleaning process and device ', and aims at solving the problems that an existing TiN film layer is not uniform in cleaning, a base material is corroded, the environment is polluted and the operation safety is poor. The method is characterized in that chemical cleaning liquid containing ammonium fluoroborate, hydrogen peroxide and the like is adopted, ultrasonic activation, multi-stage soaking, rinsing and high-pressure washing are assisted, and accurate cleaning is achieved through an automatic mechanical arm and a central control system. The method can realize thorough, uniform and lossless cleaning of sediments, remarkably improves efficiency, reduces cost, prolongs the service life of equipment, and ensures operation safety and environment friendliness.

The application discloses a processing technology of a multi-row-hole stainless steel collecting pipe and relates to the technical field of metal processing. The processing technology of the multi-row-hole stainless steel collecting pipe comprises the following process steps: pre-cleaning, temperature rising, primary cooling, secondary cooling and tertiary cooling. Magnesium propenoate is filled in the pre-cleaned multi-row-hole stainless steel collecting pipe blank, temperature rising and heat preservation are carried out, primary cooling is carried out in a mixed atmosphere of argon and hydrogen, secondary cooling is carried out in a salt tank with molten salt liquid being ammonium borate, and finally, tertiary cooling is carried out in air cooling, so that the multi-row-hole stainless steel collecting pipe is prepared. The multi-row-hole stainless steel collecting pipe prepared by the application has high impact resistance and good corrosion resistance.

This invention discloses a method for large-size ammonium fluoroborate single crystal vapor phase growth, comprising the following steps: weighing two or more compounds containing NH4, B, O, and F as raw materials in a stoichiometric ratio of 1:4:6:1, mixing them thoroughly, adding a transport agent to obtain an initial mixture, and loading the initial mixture into a crystallization vessel; during the crystal growth stage, seed crystals or suspended seed crystals are selected by geometric selection and temperature screening among the grains; the crystallization vessel is dynamically heated within the temperature gradient zone of a vertical tube furnace, the dynamic heating being achieved by independently raising or lowering the temperatures of the high-temperature and low-temperature zones to dynamically control the temperature gradient of the crystal growth zone, so as to match it with the temperature gradient required at each stage of the crystal growth process; the raw materials crystallize in the crystal growth zone under the transport agent, resulting in large-size ammonium fluoroborate crystals. This invention produces large-size single crystals, is simple to operate, and highly practical, representing a superior ammonium fluoroborate single crystal growth process.

The invention discloses a flame-retardant modified phenolic aerogel composite material and a preparation method thereof, and the method comprises the following steps: mixing phenolic resin, an alcohol pore-forming agent, a flame retardant containing phosphorus and nitrogen elements, a curing agent and a surface modifier according to a specific mass ratio to prepare a precursor solution; and dipping a fiber fabric in the solution, and sequentially carrying out curing, flame-retardant modified solvent replacement, normal-pressure drying and vacuum drying to obtain the composite material. The flame-retardant modified solvent is replaced by a boric acid solution or an ammonium borate solution. Through an innovative step-by-step flame-retardant strategy, the phosphorus-nitrogen flame retardant is fixed on a gel network, and a flame-retardant layer is introduced on the pore surface through replacement of a boron-containing solution, so that synergistic interaction of a flame-retardant function is realized. According to the method, the limit oxygen index and the thermal stability of the material are remarkably improved, meanwhile, the low-density and low-thermal-conductivity nano-porous structure of the material is well maintained, expensive supercritical drying is successfully replaced with normal-pressure drying, and the production cost is greatly reduced.

The application discloses a barrier type oxide film forming method of a gas diffusion plate, and belongs to the technical field of surface treatment of supporting parts for manufacturing semiconductor display panels. The method is used for an aluminum alloy gas diffusion plate for a TFTArray section CVD process, and sequentially performs a pretreatment process, a barrier type anodic oxidation process and a post-treatment process. A 0.2-0.4 mu m non-porous dense barrier type anodic oxidation film is formed on the surface of the gas diffusion plate through a neutral ammonium borate electrolyte system and in combination with a specific step voltage control program of boosting-constant voltage. The application realizes passivation of the aluminum alloy base through the barrier type anodic oxidation film, reduces the surface activation energy of the base, improves the process stability in a CleanCycle period, fundamentally solves the problem of initial defects caused by adsorption of foreign matters by a conventional porous oxidation film, and has high film layer density, thin thickness, high process controllability, can realize mass production and is fully suitable for the use requirements of high-end display panel CVD processes.

The invention discloses a low-cost high-purity potassium fluoborate preparation method based on ammonium fluoride, and belongs to the field of inorganic salt chemical industry, the method comprises the following steps: S1, reacting by-product ammonium fluoride with the purity of more than or equal to 99% with boric acid to synthesize an ammonium fluoborate solution; s2, at 60-80 DEG C, precisely dropwise adding a potassium chloride solution into the ammonium fluoborate solution at a rate of 1-2 mL / (min.L), and carrying out a replacement reaction; s3, performing crystallization and purification by adopting a two-stage gradient cooling program from fast to slow; s4, a low-temperature saturated potassium fluoborate solution and absolute ethyl alcohol are sequentially adopted for targeted washing, and impurities such as chloride ions are effectively removed; and S5, performing vacuum drying to obtain a product. According to the method, the phosphorus fertilizer industrial byproduct ammonium fluoride is originally adopted to replace expensive hydrogen fluoride or fluoboric acid, so that the raw material cost is reduced by 90% or above; meanwhile, impurity inclusion is effectively inhibited, the problem of impurity introduction caused by byproduct raw materials is solved, and the electronic-grade high-purity potassium fluoborate with the main content larger than or equal to 99.95% and the chloride ion smaller than or equal to 10 ppm can be stably prepared.

The present application relates to the field of zinc-iron alloy plated steel sheet surface treatment, in particular to a chromium-free surface treatment liquid for zinc-iron alloy plated steel sheet and a preparation method thereof. The treatment liquid is prepared from the following raw materials: cationic water-based polyurethane emulsion, phosphoric acid or phosphate, silicate, titanium salt, silane coupling agent, and water. In the present application, triethanolamine is used as the catalyst and hydrophilic chain extender of cationic water-based polyurethane, and boric acid is used as the neutralizing agent. The obtained cationic water-based polyurethane structure contains ammonium borate salt, and the polyurethane emulsion has excellent stability without stratification and precipitation, and also has good corrosion protection effect on iron.

This invention discloses a high-strength corrosion-resistant pipeline steel component and its preparation method, relating to the field of steel material technology. The high-strength corrosion-resistant pipeline steel component prepared by this invention comprises, from the inside out, a pipeline steel component base layer and an anti-corrosion layer. The high-strength corrosion-resistant pipeline steel component is prepared by first pre-treating the pipeline steel component base layer with a temperature rise, then applying tension to the pre-treated base layer using a tensioner, followed by coating the outer surface of the pre-treated base layer with an anti-corrosion material, and then continuing to heat and cool under a nitrogen-containing gas atmosphere. The pipeline steel component base layer, by mass fraction, comprises the following components: 0.09–0.11% C, 11–14% Cr, 0.4–1% Si, 0–0.03% S, 0–0.03% P, 0.03–0.08% Ti, with the remainder being Fe. The anti-corrosion material includes ammonium borate, polyacrylonitrile, aluminum oxalate, and ammonium polyvanadate. The high-strength corrosion-resistant pipeline steel component prepared by this invention exhibits high strength and good corrosion resistance.

The invention belongs to the technical field of acrylic glue, and particularly relates to glue for a composite current collector, a preparation method of the glue and the composite current collector, and the preparation method comprises the following steps: S1, dissolving tetra-n-butyl tetraphenyl ammonium borate in deionized water to prepare a modified solution; s2, hollow silicon dioxide particles are added into the modified solution, the reaction temperature is controlled to be 70-75 DEG C, stirring reaction is conducted for 1-1.5 h, and pre-modified particles are obtained; s3, filtering to remove reaction residues which are not completely reacted on the surfaces of the pre-modified particles, washing with deionized water, and drying at 90-95 DEG C to obtain modified particles; s4, adding the modified particles into acrylic acid glue, and stirring for 0.5-1 hour to obtain glue for the composite current collector; according to the invention, tetra-n-butyl tetraphenyl ammonium borate is combined with hydroxyl groups on the surfaces of hollow silicon dioxide particles to form an organic-inorganic hybrid interface, benzene rings and boric acid groups in the molecular structure can provide thermal stability, and a synergistic effect is formed in cooperation with the heat resistance of silicon dioxide, so that the high-temperature tolerance of a glue system can be improved.

A method of debonding first and second substrates bonded together by a cured product of a cationically curable composition is disclosed. The composition comprises an epoxy component, expandable microspheres, and a cationic polymerisation initiator, wherein the microspheres contain an expanding agent that expands under heat, thus causing the microspheres to expand. The method comprises heating the cured product to cause thermal expansion of the microspheres, thereby reducing the tensile strength of the bond formed by the cured product by ≥50% and leading to at least partial debonding of the substrates. The microspheres may be 2-80 microns in diameter and may contain silica and a gas, especially an alkane gas like isobutane. The epoxy component may be 2-vinyloxyethylglycidyl ether and the initiator may comprise (4-isopropylphenyl)(4-methylphenyl)iodonium tetrakis(pentafluorophenyl)borate or an ammonium salt of tetrakis(pentafluorophenyl)boric acid. Preferably, the first substrate is an electronic component and the second substrate is a printed circuit board.

The application relates to the technical field of semiconductor manufacturing, in particular to a water-soluble protective film and a preparation method and application thereof; the water-soluble protective film is prepared from raw materials comprising the following components: 2wt%-8wt% of a film forming agent; 0.05wt%-0.5wt% of a fluoride removing agent; 0.05wt%-0.5wt% of a buffer; and the balance of a solvent; the fluoride removing agent comprises ammonium tetraborate and / or ammonium gluconate. Compared with the prior art, the water-soluble protective film is prepared from raw materials comprising specific components, the components realize good mutual interaction under specific proportioning conditions, the water-soluble protective film can complex and absorb Al surface F ‑ under certain conditions, and can physically isolate water vapor, so that corrosion of the Al surface is effectively avoided; meanwhile, the water-soluble protective film is soluble in water and can be removed through water washing operation, the operation is simple, and the cost is low.

To provide a production method enabling high-yield and simple production of high-quality sulfonium borate salts.SOLUTION: A method for producing a sulfonium borate salt comprises a step of forming the sulfonium borate salt by reacting an ammonium borate salt with a sulfonium salt. The ammonium borate salt preferably has a structure represented by NH4+[(Y)kB(Phf)4-k]-. See the specification for definitions of Y, Phf, and k in the formula. The sulfonium salt is preferably an aromatic sulfonium salt.SELECTED DRAWING: None

The invention discloses a method for preparing a porous carbon material by taking waste plastic as a carbon source in an air atmosphere and application. The method comprises the following steps: uniformly mixing ammonium pentaborate tetrahydrate and a carbon source to obtain a pyrolysis precursor; covering ammonium pentaborate tetrahydrate above the pyrolysis precursor, and vibrating to enable the pyrolysis precursor to be more compact; transferring the pyrolysis precursor covered with ammonium pentaborate tetrahydrate into a tubular furnace, carbonizing in an air atmosphere, and naturally cooling to room temperature to obtain a pyrolysis product; adding water into the pyrolysis product, stirring, washing with water, filtering to respectively obtain filtrate and filter residues, and drying the filter residues to obtain the B / N co-doped porous carbon material. Compared with a traditional method, inert atmosphere protection is not needed, the cost and resource consumption are remarkably reduced, and the method has universality, environment friendliness, economical efficiency and high efficiency. The preparation process is simple, the period is short, the yield is high, the method is suitable for industrial large-scale production, and a new way is provided for precisely synthesizing the functional porous carbon material through air pyrolysis under mild conditions and expanding the application field of the functional porous carbon material.

The invention relates to the technical field of semiconductor manufacturing, in particular to a water-soluble protective film and a preparation method and application thereof. The water-soluble protective film is prepared from the following raw materials: 2-8 wt% of a film-forming agent; 0.05 wt%-0.5 wt% of a fluorine removal agent; 0.05 wt% to 0.5 wt% of a buffering agent; and the balance of a solvent; the fluorine removing agent comprises ammonium tetraborate and / or ammonium gluconate. Compared with the prior art, the water-soluble protective film provided by the invention is prepared from the raw materials comprising specific content components, all the components realize good overall interaction under a specific proportioning condition, and the formed water-soluble protective film can complex and absorb F <-> on the surface of Al, and can physically isolate water vapor under a certain condition, so that the water-soluble protective film has the advantages that the water-soluble protective film has good corrosion resistance and corrosion resistance; therefore, the Al surface is effectively prevented from being corroded; meanwhile, the water-soluble protective film is soluble in water and can be removed through water washing operation, operation is easy, and cost is low.

The application discloses a kind of composite oxygen barrier coating and preparation method thereof, comprising the following steps: cobalt salt and 2-methylimidazole are dissolved in solvent to form first mixed solution, after substrate is immersed in first mixed solution, the substrate removed is sequentially washed, dried, calcined and cooled, and transition layer is formed on the surface of substrate, to obtain first intermediate;Carboxylic acid and ammonium borate are dissolved in water to form second mixed solution, and second mixed solution is heated, and the above-mentioned first intermediate is immersed in heated second mixed solution, and then the first intermediate removed is heated in sections, to obtain second intermediate;Phosphoric acid and aluminum dihydrogen phosphate are dissolved in water to form third mixed solution, and the above-mentioned second intermediate is immersed in third mixed solution, and then the second intermediate removed is sequentially dried, calcined and cooled, to form oxygen barrier layer on the surface of transition layer, to obtain the required composite oxygen barrier coating.

The application relates to the technical field of land improvement, in particular to a seaweed acid type multifunctional long-acting soil conditioner as well as a preparation method and application thereof. The soil conditioner comprises a core particle layer and a slow-release layer coated on the surface of the core particle layer. The core particle layer comprises organic materials, nano silicon, calcium magnesium polyphosphate, magnesium hydride, ammonium borate, rhamnose and a binder. The slow-release layer comprises clay minerals and seaweed acid salt. The mass ratio of the clay minerals, the seaweed acid salt, the organic materials, the calcium magnesium polyphosphate, the nano silicon, the magnesium hydride, the ammonium borate, the rhamnose and the binder is controlled within a certain range. The soil conditioner provided by the application has good slow-release performance, can slowly and durably release effective components, has multiple functions such as improving soil quality, providing nutrition, promoting crop growth and improving resistance, and the components can synergistically act to effectively solve the problems of soil acidification, heavy metal pollution, micro-plastic pollution, pesticide pollution and antibiotic pollution in agricultural production.

The preparation method comprises the following steps that cobalt salt and 2-methylimidazole are dissolved in a solvent to form a first mixed solution, a base material is soaked in the first mixed solution, then the taken-out base material is washed, dried, calcined and cooled in sequence, a transition layer is formed on the surface of the base material, and a first intermediate is obtained; dissolving carboxylic acid and ammonium borate in water to form a second mixed solution, heating the second mixed solution, dipping the first intermediate in the heated second mixed solution, and then heating the taken first intermediate in stages to obtain a second intermediate; phosphoric acid and aluminum dihydrogen phosphate are dissolved in water to form a third mixed solution, the second intermediate is soaked in the third mixed solution, then the taken-out second intermediate is dried, calcined and cooled in sequence, an oxygen barrier layer is formed on the surface of the transition layer, and the needed composite oxygen barrier coating is obtained.

The invention discloses a technology for enhancing water resistance and luminous intensity of a SrAl2O4: Eu < 2 + >, Dy < 3 + > (SAO) long-afterglow material by an ammonium pentaborate combustion method, which is characterized in that CO (NH2) 2 is used as a fuel, NH4B5O8 is used as a reducing agent and a reactant, and a SrAl2B2O7 green long-afterglow material sample with good optical property and excellent water resistance is synthesized by a one-step combustion method. The SrAl2O4: Eu < 2 + >, Dy < 3 + > long-afterglow material treated by the method has ultrahigh brightness and excellent water resistance, the luminous intensity is only reduced by 16% after the material is soaked in water for 30 days, and the operation is simple and rapid.

A method for preparing hexagonal boron-nitride includes processing a boron-containing aqueous solution, including introducing a water-soluble ammonium salt to the boron-containing aqueous solution, to obtain a processed solution, evaporating the processed solution to obtain a powder mixture, the powder mixture comprising ammonium borate and non-boron residues, and heat treating the powder mixture to obtain hexagonal boron nitride at a temperature in a range of 600 to 1000°C. A system includes a boron-containing aqueous solution source, at least one tank for boron-containing aqueous solutions, a first nitrogen source configured to introduce a water-soluble ammonium salt, a second nitrogen source that is different from the first nitrogen source configured to introduce ammonia gas, a solution evaporation system configured to hold at a temperature in a range of 50 to 300°C, and a powder heating system configured to hold at a temperature in a range of 600 to 1000°C.

The application relates to the technical field of medical devices, and discloses a sterile liquid dressing and a preparation method thereof. The sterile liquid dressing is obtained by adding EGF, silicon rubber modified chitosan, epoxy group modified quaternary ammonium borate, polyacrylic acid resin IV, ethyl acetate, menthol, polyethylene glycol and purified water into a stirrer and stirring. In the stirring process, a large number of epoxy groups in the epoxy group modified quaternary ammonium borate and phenolic hydroxyl groups in the silicon rubber modified chitosan can produce ring-opening reaction and crosslinking with each other, and are better adsorbed on the surface of the skin, so that the film forming effect is better, and the repair and antibacterial effect on the skin are promoted. The chitosan in the silicon rubber modified chitosan and the quaternary ammonium salt groups in the epoxy group modified quaternary ammonium borate both have good antibacterial effect, and the quaternary ammonium salt in the epoxy group modified quaternary ammonium borate has high substitution degree, so that the antibacterial effect is further improved.

The application provides an outdoor intumescent steel structure fireproof coating and a preparation method thereof, and relates to the field of fireproof coatings.The fireproof coating comprises a matrix and a curing agent, and the matrix raw materials are bisphenol A type epoxy resin, low-viscosity aromatic epoxy resin, aerogel, ammonium polyphosphate, ammonium pentaborate, pretreated expanded graphite, composite filler, polyamide wax, dispersant and reactive diluent; and the curing agent raw materials are polyamide resin, low-viscosity aromatic epoxy resin, reactive diluent, melamine, carbon black powder, glass fiber, hydrogenated castor oil and attapulgite.The fireproof coating can form a uniform and stable coating layer, has strong adhesion to the steel structure, is resistant to high temperature and humid heat, effectively avoids problems such as peeling, bulging and cracking during use, and has excellent freeze-thaw resistance, acid resistance, alkali resistance, salt mist resistance and ultraviolet radiation resistance, so that the fireproof performance of the coating does not attenuate during long-term outdoor use, and the service life of the coating is effectively prolonged.

The present invention discloses a highly efficient flame-retardant artificial board, a flame retardant thereof, and a preparation method. The flame retardant for the artificial board comprises a polyphosphate compound, ammonium borate, boric acid, and delignified biomass cellulose in a mass ratio of 5:(3-5):(2-5):(2-4). The flame retardant of the present invention utilizes the synergistic effect of the polyphosphate compound, ammonium borate, and boric acid to significantly enhance the carbonization ability of the artificial board under high temperature conditions, forming a dense carbon layer, thereby effectively preventing the transfer of heat and oxygen and significantly improving the flame retardant effect. The prepared green and highly efficient flame-retardant artificial board has an oxygen index of over 37%, does not release toxic or harmful gases during combustion, and has excellent environmental performance. By using cellulose as a carrier for the flame retardant and combining it with the antioxidant properties of boric acid, the present invention not only enhances the mechanical properties of the artificial board, but also improves its thermal stability, achieving a good balance between flame retardancy and mechanical properties.

A compound may be useful as a co-catalyst for polymerizing olefin, diene, and acetylene. A fluorine-containing alkylammonium borate compound of formula (1):wherein each symbol is as defined in the specification, may be highly active and useful as a co-catalyst used for the polymerization reactions of olefin, diene, and acetylene, compositions containing same. Production methods of such a fluorine-containing alkylammonium borate compound are also provided.

The invention provides a compound ammonium fluoroborate, an ammonium fluoroborate nonlinear optical crystal and a preparation method and application thereof. The chemical formula of the compound is (NH4) 2B2OF6. 2H2O, the molecular weight of the compound is 223.72, the chemical formula of the crystal is (NH4) 2B2OF6. 2H2O, the molecular weight of the crystal is 223.72, the crystal belongs to an orthorhombic system structure, the space group of the crystal form is Cmc21, and the cell parameters are that a is equal to 9.00 + / -0.2, b is equal to 9.97 + / -0.2, c is equal to 9.00 + / -0.2, alpha is equal to 90 degrees, beta is equal to 90 degrees, gamma is equal to 90 degrees, and Z is equal to 4. The crystal is grown by adopting a room temperature solution method and a hydrothermal method, the crystal has a relatively large frequency multiplication coefficient and nonlinear optics, the ultraviolet cut-off edge is lower than 200nm, and the crystal shows relatively good comprehensive performance. In addition, the nonlinear optical crystal also has the advantages of wide light transmission wave band, stable physical and chemical properties, high mechanical hardness, difficulty in fragmentation and deliquescence, easiness in cutting, polishing, processing and storage and the like.