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260 results about "Sodium monofluorophosphate" patented technology

Sodium monofluorophosphate, commonly abbreviated MFP, is an inorganic compound with the chemical formula Na₂PO₃F. Typical for a salt, MFP is odourless, colourless, and water-soluble. This salt is an ingredient in some toothpastes.

Rust-resistant agent for concrete reinforcing bar and preparation method thereof

InactiveCN101948264AExcellent chelating antirust abilityGood migration and diffusion propertiesRebar corrosionAlkali soil
The invention discloses a rust-resistant agent for a concrete reinforcing bar and a preparation method thereof. The rust-resistant agent for the concrete reinforcing bar is prepared based on a gas-phase corrosion inhibitor prepared by reacting a dicarboxylic acid with organic amine. The rust-resistant agent for the concrete reinforcing bar comprises the following raw materials in percentage by mass: 5 to 10 percent of sodium monofluorophosphate, 2 to 5 percent of calcium gluconate, 20 to 40 percent of the gas-phase corrosion inhibitor and the balance of water. The rust-resistant agent for theconcrete reinforcing bar of the invention does not comprise nitrite, comprises the gas-phase corrosion inhibitor and has a function of migrating and diffusing in the concrete. Compared with the traditional rust-resistant agent for the reinforcing bar, the rust-resistant agent for the concrete reinforcing bar has the advantages of excellent corrosion inhibition and rust-resistant properties, high environmentally-friendly property and the like, can be widely applied to fresh reinforced concrete construction of harbour engineering, coastal buildings, buildings in saline and alkaline lands and other buildings with the requirements of preventing the concrete reinforcing bar from rust and corrosion, and can also be applied to the repair of the reinforced concrete structures in major construction projects and routine maintenance.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER

Method for preparing polystyrene/sodium monofluorophosphate microcapsule corrosion inhibitor

The invention discloses a method for preparing a polystyrene/sodium monofluorophosphate microcapsule corrosion inhibitor, which comprises the following steps of preparing the sodium monofluorophosphate into water solution of sodium monofluorophosphate, adding emulgator and stirring for dissolution so as to prepare water phase, dissolving the polystyrene into PS (poly styrene) solvent to prepare oil phase, mixing the water phase and the oil phase for preparing W/O type emulsion, preparing protective colloid into water solution, adding the water phase into the prepared W/O type emulsion and stirring for mixing to obtain W/O/W complex phase emulsion, taking the mixed liquid out for standing and taking out a sediment layer after full volatilization of PS solvent, washing the precipitated particles with water, after sedimentation and filtration, drying in a vacuum drying box, thus obtaining the polystyrene/sodium monofluorophosphate microcapsule corrosion inhibitor particles. The polystyrene/sodium monofluorophosphate microcapsule corrosion inhibitor prepared by the method has good water resistance performance, can reduce the effect of external effect and additives, can be directly mixed into the cement or coated on the rebar of cement, and is contributed to improving the durability of the reinforced cement, and the size of the particle is convenient to regulate.
Owner:SHENZHEN UNIV

Anticorrosive paint containing dimethyl sulfoxide

The invention discloses an anticorrosive paint containing dimethyl sulfoxide. The anticorrosive paint is composed of a component A and a component B, wherein the component A is prepared from the following raw materials in parts by weight: 84-90 parts of epoxy resin E44, 10-15 parts of high chlorinated polyethylene resin, 10-15 parts of precipitated barium sulfate, 1-2 parts of titanium tetrafluoride, 2-4 parts of sodium monofluorophosphate, 2-4 parts of dimethyl sulfoxide, 2-3 parts of ethylene glycol monobutyl ether, 2-4 parts of ethyl acrylate, 3-5 parts of urea, 2-3 parts of polyacrylamide, 2-3 parts of diethylamine, 2-3 parts of diphenylmethane diisocyanate, 3-5 parts of diisooctyl phthalate, 1-2 parts of ethylene diamine tetra methylene phosphonic acid sodium, 5-7 parts of hydrotalcite, 1-2 parts of dimethylethanolamine, 15-20 parts of compound modifier, 25-30 parts of dimethylbenzene, 10-15 parts of n-butyl acetate, 0.8-1 parts of dilauryl thiodipropionate, 0.8-1 parts of vinyltriethoxysilane and 0.5-1 part of methyl silicone oil. A paint film prepared by the invention has the advantages of good adhesive force to metal, small structure pores, compact structure, good adhesive force, good flexibility, high impact strength and strong corrosion resistance, and plays an efficient protection effect on base metal.
Owner:ANHUI MINGZHU PIGMENT TECH

Zingiber corallinum hance health-care toothpaste

The invention relates to the field of daily-use chemical industry, in particular relates to health-care toothpaste and more particularly relates to application of zingiber corallinum hance essential oil in preparation of the health-care toothpaste. The health-care toothpaste contains not less than 0.1 percent by mass of zingiber corallinum hance essential oil. A preparation method of the zingiber corallinum hance health-care toothpaste comprises the following steps of: uniformly stirring deionized water, sorbitol, polyethylene glycol, sodium monofluorophosphate, saccharin sodium salt, sodium carboxymethylcellulose, xanthan gum and sodium lauryl sulfate according to formula ratios to obtain a mixture; and adding calcium carbonate, silica, calcium hydrophosphate, the zingiber corallinum hance essential oil and essences in the mixture according to formula ratios, stirring at a high speed and then homogenizing to obtain the health-care toothpaste. According to the zingiber corallinum hance health-care toothpaste, the zingiber corallinum hance essential oil and sodium monofluorophosphate are matched to generate a synergistic effect, therefore the bacteria resistance and bacteriostasis capabilities of the toothpaste are enhanced and the favorable effects of diminishing inflammations, easing pain and eliminating ozostomia can be achieved.
Owner:重庆市超临界精细化工生产力促进中心有限公司
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