24 results about "Boric acid" patented technology

The invention discloses an acidic electroplating zinc-nickel alloy electrolyte, a preparation method and an electroplating method thereof; the electrolyte comprises a basic electrolyte and additives; the basic electrolyte is a weakly acidic solution which comprises zinc ions with mass concentration of 27-38g/L, nickel ions with mass centralization of 23-31g/L, chloride ions with mass concentration of 150-220g/L and boric acid with mass concentration of 25-35g/L at Ph value of 4.8-5.4 and at temperature of 28-35 DEG C; and the additives comprise a brightening agent of 1-12 ml/L, a walk agent of 3-30 ml/L and a disodium ethylenediamine tetraacetate complexant of 10-50 ml/L. The acidic electroplating zinc-nickel alloy electrolyte is rational in proportion and proper in matching; the galvanizing efficient is improved by 30-40% compared with the traditional acidic galvanizing; the corrosion resistance of a zinc-nickel coating can be improved remarkably and the service life of the coating is prolonged; the coating is high in hardness, corrosion resistance, abrasive resistance, pyro-oxidation resistance, compactness and comprehensive performance; the electrolyte does not need to the post-treatment technique, so that the adopted electroplating method is saved in cost, efficient and rapid, convenient in operation and far superior to the traditional alkaline zinc-nickel electroplating.

The invention relates to a preparation method of solid carbon dot fluorescent powder with high quantum yield. The preparation method comprises the following steps: weighing raw materials according tothe following constituents in parts by weight: 0.25 to 1 part of potassium hydrogen phthalate, 0.5 part of sodium azide and 0.25 to 1 part of boric acid; mixing the raw materials, then dissolving themixture in a formaldehyde solution ultrasonically, putting the mixed solution in a microwave oven for heating at the power of 225 to 750 W for 4 to 10 min, and completely evaporating the liquid at theend of reaction to obtain white powder which is nitrogen and boron-doped carbon dots (NBCDs). The preparation method is low in cost, high in preparation speed and easy to operate; the quantum yield (QY) of the prepared solid luminous NBCSs is extremely high, and the absolute solid luminous QY of the NBCSs is 67.7 percent.

The invention provides a soil bio-activator for ginseng continuous cropping and belongs to the field of modernization of Chinese traditional medicine. The soil bio-activator for ginseng continuous cropping can be used for solving the problems of serious ginseng continuous cropping diseases, low yield and poor quality caused by deterioration of the physicochemical and biological characters of old ginseng-grown land soil. The soil bio-activator for ginseng continuous cropping is prepared from 2.0%-8.0% of bacillus subtilis, 2.0%-8.0% of actinomycetes, 5.0%-20.0% of xylanase, 5.0%-20.0% of cellulase, 10.0%-20.0% of urease, 1.0%-4.0% of potassium dihydrogen phosphate, 0.1%-0.5% of ferrous sulfate, 0.1%-0.4% of boric acid, 0.1%-0.5% of manganese sulfate, 0.05%-0.2% of copper sulfate, 0.1%-0.4% of zinc sulfate, 0.05%-0.2% of ammonium molybdate and the balance of organic materials through mixing and compositing. The soil bio-activator for ginseng continuous cropping is used for improving the soil for ginseng continuous cropping in ginseng growing.

The invention relates to an electrolyte used for magnesium alloy anode oxidation treatment and a treatment method. The electrolyte comprises the following components of 20-60ml/L of polyaspartic acid salt, 40-100g/L of alkali metal silicate, 10-40g/L of boric acid or sodium tetraborate, 150-300ml/L of ammonia water or 50-200ml/L of organic amine and 20-60mg/L of sodium gluconate serving as additive, wherein the pH (potential of hydrogen) value of the electrolyte is 11-13. When the electrolyte disclosed by the invention is adopted for anode oxidation surface treatment on the magnesium alloy, one layer of smooth, even and compact ceramic layer with good corrosion resistance is formed on the surface of the magnesium alloy, the electrolyte can not pollute the environment and has a good favorable application prospect.

The invention discloses skin-care permanently-antibacterial DP finishing liquid for shirts and a finishing method. The skin-care permanently-antibacterial DP finishing liquid is prepared from gelatin, Arabic gum, Flos Lonicerae extract, Chinese gall extract, Tween 60, span-80, 25% glutaraldehyde, an emulgator SPO10, butanetetracarboxylic acid, ammonium citrate, triethanolamine, lauric acid, sodium hypophosphite, boric acid, a diphenylethene disulfonic acid derivative, boron trifluoride diethyl etherate, PEG 1500, methylsiloxane, chitosan, N,N-dimethylformamide, demulsifier N-220 series, an appropriate amount of maleic anhydride and an appropriate amount of water. The skin-care permanently-antibacterial DP finishing liquid for shirts has the advantages that a natural antibacterial active substance is wrapped through advanced microcapsulary and releases slowly to achieve permanent antibacterial and deodorization performance and make wearers feel refreshing and comfortable; fabrics finished by the DP finishing liquid are excellent in wear durability, waterproofing performance and non-ironing performance and highly resistant to crease, thereby being time saving and labor saving and excellent in wearability.

The invention relates to a humic acid-containing complete-element water soluble fertilizer. The fertilizer contains potassium humate, potassium fulvate, mannitol, potassium nitrate, potassium dihydrogen phosphate, ammonium biphosphate, urea, N-butyl thiophosphoric triamide, magnesium sulfate monohydrate, boric acid, EDTA chelated manganese, EDTA chelated iron, EDTA chelated copper, EDTA chelated zinc and sodium molybdate. The fertilizer provided by the invention has the advantages of complete nutrition, reasonable proportioning and synergism of all components, good crop growth promotion effect, and good water solubility, can be applied to crops while the crops are irrigated, especially has good effects on economic crops and field crops in dry lands, and is in favor of realizing water saving irrigation.

The invention discloses novel cleaning fluid. The novel cleaning fluid comprises (a) quaternary amine hydroxide, (b) alcohol amine, (c) solvent, (d) silane (e) boric acid ester (borate) and (f) a star-shaped copolymer containing pigment affinity group. The photoresist stripping fluid takes silane, boric acid ester and the star-shaped copolymer containing pigment affinity group as the main metal corrosion inhibitor, so that the base materials, such as metal aluminum, copper and the like can be effectively prevented from being etched basically in compounding and in use; meanwhile, the stripping fluid can effectively remove the photoresist from a wafer, and can directly rinse the cleaned wafer by water. Therefore, the novel cleaning fluid has wide application prospects in metal cleaning, semiconductor wafer cleaning and other microelectronic fields.

The invention provides a method for preparing flowerlike nanometer cobalt by using electro-conductive glass FTO, an anodised aluminum template (AAO) and an aqueous high-molecular adhesive as a combined electrode. The method comprises the following steps: (1) preparation of a working electrode: a step of coating the electro-conductive glass with a solution of the aqueous high-molecular adhesive--polyvinyl alcohol (PVA) through spin coating and bonding the anodised aluminum template so as to obtain the FTO/PVA/AAO combined electrode; (2) preparation of an electrolyte: separately preparing cobaltous sulfate and a boric acid solution and mixing the cobaltous sulfate with the boric acid solution; (3) electrodeposition reaction: a step of carrying out constant-voltage electrodeposition on the combined working electrode; and (4) post-treatment: a step of soaking the working electrode having undergone electrodeposition in sodium hydroxide to remove the anodised aluminum template. According to the invention, FTO/PVA/AAO is used as the combined working electrode and constant-voltage electrodeposition is carried out so as to prepare the novel flowerlike nanostructured cobalt; and the method is simple and fast and has the advantages of mild reaction conditions, short time, high efficiency and no need for high temperature and high pressure conditions compared with conventional methods.

The invention discloses a method for electroplating a goldfinger with a thick gold layer. The method comprises the following processes: a, using copper-clad plate to etch an outer circuit, and forming a goldfinger leading wire; b, coating a coating material so as to form a gold-plating finger area; c, carrying out electronickelling on the gold-plating finger; d, electrogilding on the nickel layer of the gold-plating finger area; and e, removing the goldfinger leading wire and forming a solder mask, wherein a nickel aminosulfonate electroplating liquid is used in the process c for the electronickelling of the gold-plating finger area; and a nickel sulfonic acid electroplating liquid is a mixed solution of 300-600g/L nickel aminosulfonate, 20-50g/L boric acid and 30-70g/L nickel chloride. According to the method, the nickel aminosulfonate electroplating liquid is selected for the electronickelling of the gold-plating finger area, so that the electronickelling efficiency is high, the surface of the electronickelling layer is smooth and does not have residual stress, and the subsequent gold layer can be stably plated without gold throwing; and the goldfinger plated by the method is particularly suitable for electroplating gold layers with the thickness above 30 microinches, the nickel layer can be effectively prevented from being exposed, and the quality of the produced goldfinger can be greatly improved.

The invention discloses high-strength crack-resistant concrete. The main materials used in the concrete include the following raw materials, in parts by weight, 30 to 35 parts of stone, 8 to 10 partsof cement, 20 to 23 parts of sand, 5 to 6 parts of water, 0.3 to 0.5 part of water reducing agent, and 2 to 3 parts of fly ash. The auxiliary materials used in the concrete include the following raw materials, in parts by weight, 8-10 parts of expanded polystyrene granules, 2-4 parts of lignocellulose, 3-4 parts of polypropylene fiber, 4-6 parts of fluororubber, 2-4 parts of quartz sand, 6-10 parts of feldspar, 0.2-0.6 part of sodium silicate, 4-8 parts of boric acid, and 2-3 parts of sodium hydrogencarbonate. According to the invention, the tensile strength of the whole concrete can be enhanced and the concrete can be prevented from breaking by adding the glass wool fiber into the raw materials, and with addition of expanded polyphenyl granules, lignocellulose, polypropylene fiber and fluororubber, the elasticity of the concrete is increased, and when subjected to strong impact, the concrete does not break immediately, thereby avoiding splashing after particle breakage.

The invention relates to a preparation method of pearlescent anti-crease waterproof moisture-permeable polyurethane synthetic leather. The preparation method comprises the steps: weighing raw materials of a surface layer, mixing activated carbon, nitrocellulose, a dried color material, a pearl powder and colored plastic particles, then grinding, adding a proper amount of an acetic acid solution and polyurethane, adjusting the pH to be neutral, carrying out freeze drying, then grinding, adding the remaining raw materials, and stirring, to obtain a surface layer slurry; evenly coating release paper with the surface layer slurry, and drying to form a surface layer; weighing raw materials of a middle layer, mixing expanded graphite, quartz sand, magnesium oxide and aluminum hydroxide, then calcining the mixture, adding a stripping agent BYK-325, then treating for 1-2 h, cooling, then adding boric acid and wood powder, grinding, adding the remaining raw materials, and stirring to obtain a foaming layer slurry; mechanically foaming the prepared foaming layer slurry, then evenly coating the surface layer with the foamed foaming layer slurry, and drying; coating the foaming layer with a water-based polyurethane adhesive slurry, bonding with a base cloth layer, and then drying; and peeling off the release paper, trimming, rolling, and thus obtaining the synthetic leather finished product.

The invention discloses a flame-retardant and wear-resisting rubber material for a borehole cable sheath and a preparation method of the flame-retardant and wear-resisting rubber material. The flame-retardant and wear-resisting rubber material is prepared from nitrile rubber, natural rubber, triethyl citrate, benzoxazine resin, magnesium dimethacrylate, acetyl benzoyl peroxide, ethanol [2-[2-(2-methoxyethoxy)ethoxy]ethyl], triester with boric acid, gamma-aminopropyltriethoxysilane, polychlorinated terphenyl, dimethyldiethoxysilane, tricresyl phosphate, magnesium hydroxide, white jade powder, microcrystalline wax, hydrogenated rosin resin and the like. By matching the nitrile rubber with the natural rubber for use, the flame-retardant and wear-resisting rubber material has the advantages of good mechanical property and processing property, good oil resistance, wear resistance and chemical corrosion resistance, as well as heat resistance and low temperature resistance; by matching the tricresyl phosphate, the polychlorinated terphenyl and the magnesium hydroxide with sodium aluminum carbonate hydroxide for use, the fire-retardant property is enhanced; by adding the white jade powder, nano- tungsten boride and other fillers, high temperature resistance, wear resistance and other physical properties of the material are enhanced.

The invention discloses an efficient total-nutrient chelate fertilizer and a preparation method of the efficient total-nutrient chelate fertilizer, and belongs to the technical field of crop fertilizers. The efficient total-nutrient chelate fertilizer is prepared from the following raw materials by weight: 650-750 parts of urea, 800-100 parts of monopotassium phosphate, 80-120 parts of potassium humate, 75-85 parts of calcium chloride, 55-65 parts of magnesium sulfate, 18-22 parts of ferrous sulfate, 20-25 parts of manganese sulfate, 20-25 parts of copper sulfate, 20-25 parts of zinc sulfate,2-4 parts of ammonium molybdate, 40-60 parts of citric acid, 50-60 parts of tartaric acid, 90-110 parts of EDTA, 35-45 parts of boric acid, 15-20 parts of lanthanum nitrate, 25-30 parts of cerous nitrate, and 30-40 parts of a surfactant. The monopotassium phosphate, the compound trace element and the rare earth element chelate are compounded, the trace element and the rare earth element exist in the non-precipitate inorganic form, and the defect that the traditional micro element fertilizer cannot be compounded with the phosphate is overcome.

The invention relates to the field of aluminum alloys, in particular to an aluminum alloy and a preparation method thereof. The aluminum alloy comprises an aluminum alloy matrix and a hard anodic oxide film located on the surface of the aluminum alloy matrix. The surface of the hard anodic oxide film is provided with micropores. Particles generated in the hard anodic oxidation process adhere to the inner walls of the micropores. The preparation method comprises the steps that, an aluminum alloy precursor needing to be treated is subjected to S1 alkali cleaning, S2 pickling, S3 acid etching, S4hard anodic oxidation, S5 hot water washing, S6 passivation and S7 sealing, thus the aluminum alloy is obtained, wherein an electrolyte used in hard anodic oxidation in the S4 comprises the components of phytic acid, oxalic acid, citric acid, boric acid and lactic acid. The prepared aluminum alloy is higher in corrosion resistance, higher in hardness and better in wear resistance, and can be applied to the fields of aerospace, aviation and computer manufacturing, automobile and rail train manufacturing and the like.

The invention discloses isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton and a preparation method thereof. The composite sound absorbing cotton is formed by a top face layer, a back face layer and a cellucotton layer arranged between the top face layer and the back face layer. The top face layer and the back face layer are made of a non-woven fabric material. The composite sound absorbing cotton is characterized in that the non-woven fabrics are prepared by the following raw materials by weight through a melt-blow method: 100 parts of isotactic polypropylene, 1-2 parts of tall oil acid, 8-10 parts of polybutadiene, 5-7 parts of solid paraffin, 1-2 parts of barium stearate, 2-3 parts of aluminium hydroxide, 14-17 parts of diethylene glycol dibenzoate, 1-2 parts of zinc borate, 12-14 parts of dry shells, 7-9 parts of basalt, 3-5 parts of apocynum venetum, 2-4 parts of white peony roots, 1-2 parts of bighead atractylodes rhizome and 4-5 parts of auxiliary. The isotactic polypropylene/tall oil acid/polybutadiene composite sound absorbing cotton has the advantages of being high in tensile property, large in product void rate and good in breathability, and improves the sound absorbing effect of ordinary sound absorbing cotton.

The invention discloses a seedling-raising substrate and a preparation method thereof, and relates to the field of plant seedling raising. The seedling-raising substrate is prepared from, by mass, sandy soil, magnesium sulfate, rotten cow dung, a water-absorbing water-retaining agent, carburizing rice husk, trachycarpus fortunei bark fibers, calcium magnesium phosphate fertilizer, nitrogen-phosphorus-potassium compound fertilizer, ammonium sulfate, monoammonium phosphate, boric acid, polyaspartic acid, glucosamine oligosaccharides, a plant disease prevention agent and activation resistant bacteria. According to the technical scheme, the substrate has the functions of sufficient fertilizer efficiency, nutrition slow release, disease resistance and stress tolerance, comprehensive nutrition, high pertinence and the like, and various indexes reach the industrial standard. By means of batched production and application in multiple seedling-raising factories, the seedling-raising substrate can increase the germination rate of seeds and seedling emergence rate, seedlings are regular, robust growth is achieved, the seedlings are healthy and strong, rampant growth, root rot, dwarfing and rigidifying do not exist, flower bud differentiation of the seedlings is normal, and the property, yield and quality of the crop variety are guaranteed.

The invention relates to an insecticide-fertilizer for an out-of-season fruit green radish and a preparation method thereof. The insecticide-fertilizer is a high-concentration clear solution water-soluble Insecticide-fertilizer prepared by mixing a macroelement water-soluble fertilizer and a biopesticide. The insecticide-fertilizer comprises the following active ingredients in parts by weight: 14.29 parts of ammonium polyphosphate, 8.93 parts of potassium nitrate, 4.29 parts of phosphoric acid, 22.14 parts of potassium tripolyphosphate, 0.29 parts of zinc sulphate monohydrate, 0.43 parts of boric acid, 4.2 parts of sorbitol, 2.5 parts of mannite, 2.4 parts of xylitol, 2.2 parts of glycerin, 5.26 parts of sulphur submicron powder, 1.21 parts of allicin, 0.18 parts of mandala dry powder, 3.68 parts of plantain herb, 1.53 parts of pepper and 100 parts of softened water. The insecticide-fertilizer can be used for effectively promoting the expansion of a radish fleshy root and inhibiting the plant diseases and insect pests; particularly the prevention effective rate for the soft rot is 100% and the pesticide residue is zreo.

The invention relates to a wood fire-proofing agent. The wood fire-proofing agent is prepared from the following components in parts by weight: 15 to 25 parts of sodium silicate, 0.2 to 0.5 part of amildew preventive, 5 to 15 parts of polysorbate-80, 5 to 10 parts of phosphated castor oil, 10 to 20 parts of melamine, 5 to 10 parts of ammonium sulfate, 10 to 20 parts of magnesium sulfate, 10 to 20parts of boric acid and 50 to 80 parts of water. The invention also provides a preparation method of the wood fire-proofing agent. The wood fire-proofing agent and the preparation method, provided bythe invention, are reasonable in allocation and good in stability and fire-proof performance, and are safe and environmentally friendly.

The invention provides a flame-retardant ethylene propylene diene monomer, and relates to the technical field of high molecular materials. The flame-retardant ethylene propylene diene monomer is prepared from the following composition raw materials: 80 to 100 parts of ethylene propylene diene monomers, 20 to 25 parts of aluminum silicate fiber cotton, 23 to 28 parts of ore slag fiber cotton, 12 to 18 parts of sepiolite fiber cotton, 3 to 7 parts of vermiculite, 14 to 19 parts of expanded perlite, 8 to 13 parts of fiber cement boards, 3 to 8 parts of fiber enhanced calcium silicate boards, 5 to 12 parts of pentaerythrite oleate, 4 to 8 parts of abietic resin, 5 to 9 parts of boric acid, 11 to 15 parts of coronene, 6 to 10 parts of rhodium, 11 to 13 parts of asphalt coal tar, 9 to 16 parts of plasticizers and 17 to 22 parts of light stabilizers. The flame-retardant ethylene propylene diene monomer has the beneficial effects that the price of the raw materials is cheap; the manufacturing process is simple; the flame retardant effect of the prepared ethylene propylene diene monomer is good; no harm is caused on human bodies in the production process.

The invention discloses a soil oxygen-increasing agent. The soil oxygen-increasing agent is prepared from calcium peroxide, hydroxypropyl methyl cellulose, hydrogen peroxide, a stabilizer, a sunflower plate, boric acid, tetrabutyl titanate, urea and the like, and can supplement and realize controlled release of oxygen in soil, promote deeper growth of plant root systems, alleviate root cell asphyxia, reduce damage of hypoxia to roots, and shorten the maturity period of crops in order to lower the cost of agriculture in disguise; through long-term use of the soil oxygen-increasing agent, degradation of soil organic residues can be catalyzed, soil acidity can be neutralized, soil permeability can be increased, soil compaction can be prevented, and the agricultural production efficiency can be increased.