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46results about How to "Has defoaming effect" patented technology

Low air-entraining viscosity reducing polycarboxylic water reducer and preparation method thereof

The invention discloses a low air-entraining viscosity reducing polycarboxylic water reducer which is formed by free radical polymerization of an alkyl phosphotriester mixture, TPEG and unsaturated carboxylic acid under the action of an initiator and a chain transfer agent. By introducing an alkyl phosphotriester monomer containing two double bonds to a main chain, molecules of the obtained polycarboxylic water reducer are of heterocyclic multibranched structures, so that the thickness of a polycarboxylic water reducer adsorption layer is increased, the plastic viscosity of concrete can be remarkably reduced, and meanwhile, by introducing the phosphotriester structure into the molecules of the polycarboxylic water reducer, the foaming property of the obtained polycarboxylic water reducer can be effectively improved and the air entraining property thereof can be reduced. The low air-entraining viscosity reducing polycarboxylic water reducer prepared by the invention is low in dosage and high in water reducer rate, the air entraining property of the low air-entraining viscosity reducing polycarboxylic water reducer can be reduced, the strength and durability of the concrete are improved while the viscosity of high grade concrete is remarkably reduced, and the raw materials are low in cost, the reaction condition is mild, and the low air-entraining viscosity reducing polycarboxylic water reducer is suitable for being popularized and applied.
Owner:CHINA STATE CONSTR READY MIXED CONCRETE CO LTD +1

Zeolite controlled-release fertilizer and manufacturing method for same

InactiveCN103304311APossesses porous adsorptionAbsorbentFertilizer mixturesPhosphateIon exchange
The invention provides a zeolite controlled-release fertilizer and a manufacturing method for the same. The zeolite controlled-release fertilizer comprises the following raw materials in the parts by weight: 5-15 parts of biochemical potassium fulvate, 30-50 parts of urea, 10-40 parts of monoammonium phosphate, 15-40 parts of inorganic potassium salt, 1-4 parts of magnesium sulphate, 1-4 parts of calcium nitrate, 1-4 parts of zinc sulphate, 10-30 parts of modified zeolite, 2-5 parts of ammonium ferric citrate, 2-5 parts of emathlite, and 1-4 parts of calcium sulphate. The manufacturing method comprises the following steps of: (1) adding the raw materials aforementioned in a crusher, and crushing; (2) performing the operations of steam humidification, granulation and drying on the crushed raw materials to obtain a zeolite controlled-release fertilizer crude product; and (3) screening the zeolite controlled-release fertilizer crude product obtained in the step (2), wherein the oversize product is the zeolite controlled-release fertilizer. Zeolite is used as a carrier for the active ingredients, and the modified zeolite has multi-channel adsorbability, metal ion exchange property, water absorption and water retention property, acid resistance, alkali resistance, heat resistance, potassium fulvate rapid dissolution property, and the like, as well as achieves controlled release by being matched with proper nitrogen, phosphorus, potassium, calcium, magnesium, zinc and the like.
Owner:山东华粮生物工程集团股份有限公司

Oxidized ore flotation mixed-dissolving collecting agent and using method thereof

The invention discloses an oxidized ore flotation mixed-dissolving collecting agent and a using method thereof. The ore oxide collecting agent takes soft fatty amine, acetic acid, water, hydroxyethylcellulose and polyacrylic acid as raw materials, and is formed by mixing the following components of, in percentage by mass, 2-5% of soft fatty amine, 2-5% of acetic acid, 45-50% of water, 10-15% of hydroxyethyl cellulose and 30-35% of polyacrylic acid; the using method comprises the following specific steps of firstly, mixing the soft alicyclic amine and the acetic acid in proportion, adding water and uniformly stirring, the solution is colorless and transparent, then adding hydroxyethyl cellulose and polyacrylic acid, and continuously stirring until the mixture becomes a white emulsion. Theore oxide mixing and collecting agent can be applied to flotation oxide zinc ores, copper oxide ores, quartz, feldspar and other oxidized ores, compared with a traditional amine cation collecting agent, the collecting agent is used as an inhibitor and a collecting agent during zinc oxide ore flotation, the viscosity of the foam can be reduced, and the sorting performance of the zinc oxide mineralscan be improved; the ore oxide collecting agent disclosed has the advantages of being small in using amount, low in viscosity and high in dispersity, good in selectivity and the like, and is suitablefor being used as an ore oxide, in particular to a zinc oxide flotation collecting agent.
Owner:CHINA MINMETALS CHANGSHA MINING RES INST

Green biological inhibition fire preventing and extinguishing material and preparation method thereof

The invention discloses a green biological inhibition fire preventing and extinguishing material which comprises, by weight, 60-100 parts of water, 8-20 parts of aloe extracts, 10-20 parts of basic reagents and 10-20 parts of prepared reagents. The basic reagents include acetone, potassium iodide, potassium bromide, potassium peroxodisulfate and N-isopropylacrylamide, and the prepared reagents include sodium bicarbonate, polydimethylsiloxane, anhydrous sodium sulfite and acrylic acid. A pH (potential of hydrogen) of the biological inhibition fire preventing and extinguishing material is 7-7.3.The invention further discloses a preparation method of the biological inhibition fire preventing and extinguishing material. The method includes the steps: uniformly mixing the aloe extracts and water; sequentially adding the basic reagents and the prepared reagents; adjusting pH and standing. Penetrability and diffusivity of the biological inhibition fire preventing and extinguishing material are improved, fire extinguishing performance is enhanced, and the material is green and environmentally friendly. According to the method, raw materials are uniformly mixed step by step to prepare thebiological inhibition fire preventing and extinguishing material, and the fire extinguishing performance of the material is further enhanced.
Owner:XIAN UNIV OF SCI & TECH

A clean effervescent tablet with the effects of removing pesticide residues and bacteria and its preparation method

ActiveCN107384619BEfficient alkalineEfficiently supplements alkalinityInorganic/elemental detergent compounding agentsBiocideBiotechnologyEffervescent tablet
The invention relates to the technical field of daily chemical products and in particular to a clean effervescent tablet with pesticide residue and bacteria removing effects and a preparation method of the clean effervescent tablet. According to the preparation method disclosed by the invention, a specific surfactant is combined with a special wet granulation process, so that the feasibility of the production process is ensured. The clean effervescent tablet has the advantages that no dryness or stickness is caused; the adhesion of foam to the surface of a disintegrating agent can be inhibited, the disintegration speed is increased and an effervescent effect is quickly exerted; in the disintegration and dispersion process, the efficient alkaline supplementing effect on a solution system is realized by synergizing a bacteria remover with an alkali-source supplement, fruit wax and pesticide left on vegetables and fruits can be effectively removed, and the aims of effectively removing escherichia coli and staphylococcus aureus are achieved. By using the alkali-source supplement with a special structural form, metal ions in the water body and on the surface of the vegetables and the fruits can be effectively chelated, the effects of softening the water body and chelating the metal ions are realized, and the deposition of calcium scales on the surfaces of cleaned materials is prevented; in addition, a variety of calcium scales or stains are dispersed, so that secondary pollution to tableware, the fruits and the vegetables caused by deposition is prevented.
Owner:GUANGZHOU LIBY

Water-based environmentally-friendly coating and preparation process thereof

The invention provides a water-based environmentally-friendly coating and a preparation process thereof. The preparation process comprises the following steps: firstly mixing polydimethylsiloxane, maleic anhydride, trimellitic acid, trimethylolpropane, coconut oil, tetrabutyl titanate and an emulsifying agent to prepare pre-emulsified matter, in a water-based system, adding ammonium persulfate, and performing a reaction under heating to form alkyd resin; after natural cooling is finished, adding ethyl orthosilicate, a dibutyltin dilaurate catalyst and 3-(methacryloyloxy)propyltrimethoxysilane,and performing a reaction under stirring to obtain an intermediate product; in a water-based system in the presence of a surfactant, mixing polymethyl methacrylate, an ethylene-acrylic acid copolymer, butyl acrylate and hydroxyethyl acrylate, performing grinding, pouring the ground material into the intermediate product, and performing uniform mixing under stirring to obtain an A component; and performing uniform stirring on an accelerant and an initiator to obtain a B component. According to the coating and process provided by the invention, when the coating is used, the A component and theB component are mixed and stirred uniformly, the mixed material uniformly coats the surface of an object to be coated, and drying is performed at room temperature.
Owner:戚江浩

A low-air-entraining viscosity-reducing polycarboxylate water reducer and its preparation method

The invention discloses a low air-entraining viscosity reducing polycarboxylic water reducer which is formed by free radical polymerization of an alkyl phosphotriester mixture, TPEG and unsaturated carboxylic acid under the action of an initiator and a chain transfer agent. By introducing an alkyl phosphotriester monomer containing two double bonds to a main chain, molecules of the obtained polycarboxylic water reducer are of heterocyclic multibranched structures, so that the thickness of a polycarboxylic water reducer adsorption layer is increased, the plastic viscosity of concrete can be remarkably reduced, and meanwhile, by introducing the phosphotriester structure into the molecules of the polycarboxylic water reducer, the foaming property of the obtained polycarboxylic water reducer can be effectively improved and the air entraining property thereof can be reduced. The low air-entraining viscosity reducing polycarboxylic water reducer prepared by the invention is low in dosage and high in water reducer rate, the air entraining property of the low air-entraining viscosity reducing polycarboxylic water reducer can be reduced, the strength and durability of the concrete are improved while the viscosity of high grade concrete is remarkably reduced, and the raw materials are low in cost, the reaction condition is mild, and the low air-entraining viscosity reducing polycarboxylic water reducer is suitable for being popularized and applied.
Owner:CHINA STATE CONSTR READY MIXED CONCRETE CO LTD +1
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