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4125 results about "Dioxyethylene Ether" patented technology

High slump retaining type polycarboxylic acid water reducing agent with sustained-release effect and preparation method thereof

The invention relates to a high slump retaining type polycarboxylic acid water reducing agent with a sustained-release effect and a preparation method thereof. The preparation method is characterized by comprising the following steps of: preserving 5-30 mol% of monomer A, 30-60 mol% of monomer B, 20-55 mol% of monomer C at 60-80 DEG C for 1-3 h under the effect of an initiator, a chain transfer agent and a polymerization inhibitor; copolymerizing the monomers to obtain a polymer with molecular weight of 30000-100000; and then adding alkali to neutralize the polymer, wherein the total amount of the monomers A, B and C is 100 mol%; the monomer C comprises a slump retaining auxiliary 1 and a slump retaining auxiliary 2 according to a mol ratio of 1:20-13:20; the monomer A is isopentene alcohol polyoxyethylene ether, allyl polyethylene glycol, 1-methyl-2-allyl polyethylene glycol or allyl poly diglycidyl ether with polymerization degree n of 20-60; and the monomer B is acrylic acid or methacrylic acid. The high slump retaining type polycarboxylic acid water reducing agent with the sustained-release effect, provided by the invention, has the advantages of excellent slump retaining property, substantially no loss for slump degree within 3 h and wide applicability.
Owner:CHINA STATE CONSTR READY MIXED CONCRETE CO LTD

Anti-bacterial hand-washing solution and preparation method thereof

The invention specifically relates to an anti-bacterial hand-washing solution and a preparation method thereof, belonging to the field of washing agents. The anti-bacterial hand-washing solution is mainly composed of fatty alcohol polyoxyethylene ether sodium sulfate, cocoamidopropyl betaine, alkyl glucoside, polyquaternary ammonium salt, fatty glyceride, humectant, mixed plant extract, tetrasodium ethylenediamine tetraacetate, sodium chloride, citric acid, jojoba oil, 1,2-pentanediol and essence. The preparation method comprises the following steps: dissolving fatty alcohol polyoxyethylene ether sodium sulfate, cocoamidopropyl betaine and fatty glyceride with water with a total amount of 70 to 80%; uniformly mixing jojoba oil, polyquaternary ammonium salt, humectant and alkyl glucoside; and mixing two mixed solutions obtained in the previous two steps, adding the rest components and carrying out uniform mixing under stirring. The anti-bacterial hand-washing solution provided by the invention has skin-care, skin-moistening, antibacterial, bacteriostatic, anti-allergy, soothing, anti-inflammatory and hand-microcirculation-improving effects and is a multifunctional hand-washing solution with strong sterilization and detergency capabilities and substantial skin-care and skin-moistening effects.
Owner:WALCH GUANGZHOU COMMODITY

Sulfur-containing bis-imidazoline type carbon dioxide corrosion inhibitor and preparation method thereof

The invention discloses a sulfur-containing bis-imidazoline type carbon dioxide corrosion inhibitor and a preparation method thereof. The corrosion inhibitor comprises the following components in percentage by weight: 20-50 percent of sulfur-containing bis-imidazoline quaternary ammonium salt, 1-5 percent of nonionic surfactant, 40-70 percent of low molecular alcohol solvent and 5-10 percent of alkynol, wherein a sulfur-containing bis-imidazoline compound has a general formula of a structure which is shown in the specification; the number of carbon atoms in R of the formula is 5 or 8; the nonionic surfactant is fatty alcohol-polyoxyethylene ether or alkylphenol ethoxylate; the low molecular alcohol solvent is methanol, ethanol, isopropanol or ethylene glycol; and the alkynol is propargyl alcohol or hexynol. In the invention, the sulfur-containing bis-imidazoline compound which is generated through dehydration between dicarboxylic acid and polyamine molecule, dehydration reaction in the molecule and further reaction with the sulfur-containing compound is adopted; the molecule contains a plurality of active adsorption centers such as two diazo five-membered heterocyclic rings, a sulfur-containing group and the like; and a formed organic adsorption membrane has better protection effect on carbon steel.
Owner:UNIV OF SCI & TECH BEIJING

Preparation method of polyacrylate emulsion containing silicon, fluorine and phosphate group

The invention relates to a preparation method of polyacrylate emulsion containing silicon, fluorine and a phosphate group. The polyacrylate emulsion is widely applied in the fields of leather, paper and architectural decoration and finishing paint due to excellent caking property, film-forming property and mechanical properties. According to the preparation method provided by the invention, butyl acrylate, methyl methacrylate, styrene, hydroxypropyl methacrylate, vinyl triethoxy silane, phosphate functional monomer and dedecafluoroheptyl methacrylate are taken as polymerization monomers, lauryl sodium sulphate and fatty alcohol-polyoxyethylene ether are taken as emulsifiers, peroxysulphate is taken as an initiator, and a pre-emulsification seeded emulsion polymerization process is adopted for preparing the polyacrylate emulsion. According to the polyacrylate emulsion obtained by adopting the preparation method provided by the invention, fluorine, silicon and the phosphate group are introduced into a molecular structure, flame retardance, low temperature resistance, corrosion resistance, water resistance, anti-scouring property, mechanical properties and adhesiveness with materials such as metal and cement of a polymer emulsion film are obviously improved, and the obtained polyacrylate emulsion can be applied to leather, textile, metal antirust paints and decorative finish paints for an internal wall and an external wall of a building material and has good development prospect.
Owner:南京紫鸿生物科技有限公司 +1

Emulsion type carbon fiber sizing agent containing graphene oxide and preparation method thereof

ActiveCN104389176AAffect spreadImprove performanceCarbon fibresEpoxyFiber
The invention discloses an emulsion type carbon fiber sizing agent containing graphene oxide and a preparation method thereof. The sizing agent is prepared from a nonionic epoxy emulgator, epoxy resin, graphene oxide and a water dispersion medium. The preparation method of the emulsion type carbon fiber sizing agent comprises the following steps: taking epoxy resin, adding polyethylene glycol and an organic solvent, adding a coupling agent at the reflux temperature and reacting for 2-2.5 hours, adding alkylphenol ethoxylates, stirring for 1-2 hours, then pumping vacuum and extracting the organic solvent, lowering the temperature to room temperature to obtain the nonionic epoxy emulgator; and adding epoxy resin on the basis of the obtained nonionic epoxy emulgator, then slowly and quantitatively adding a graphene oxide aqueous solution, and finally adding the water dispersion medium until the phase is converted to obtain the emulsion type carbon fiber sizing agent. By virtue of the emulsion type carbon fiber sizing agent, the defects of economy, safety, environmental pollution and hygiene caused by a large quantity of organic solvents required for the solution type carbon fiber sizing agent can be overcome; the prepared sizing emulsion has the characteristics of being small in granularity and uniform in pavement on the surface of the carbon fiber.
Owner:HARBIN INST OF TECH

Neutral blockage removing agent composition used for oil recovery formation in oilfield and preparation method thereof

The invention relates to a neutral blockage removing agent composition used for an oil recovery formation in an oilfield. The neutral blockage removing agent composition is prepared from the following raw materials in parts by weight: 30-36 parts of disodium polyepoxysuccinicate, 18-25 parts of sodium gluconate, 2-3 parts of polyethylene glycol, 2-4 parts of triethanolamine, 9-12 parts of ethyl lactate, 7-10 parts of fatty alcohol polyoxyethylene ether sodium sulfate, 8-12 parts of amino acid sodium, 10-15 parts of activated attapulgite, 0.1-0.2 part of vanadium pentoxide, 5-7 parts of lipase, 5-8 parts of sorbitan fatty acid ester, 15-18 parts of P-hydroxy sodium sulfonate, 3-7 parts of tert-butyl hydroperoxide and 0.1-0.3 part of diethylene glycol monolaurate. The neutral blockage removing agent composition has high blockage removing speed, is neutral, is free of corrosion and can quickly dissolve material scales, asphalt sediment scales, carbonate scales, silicate scales and the like generated by an ASP flooding system; waste liquid for blockage removal can be degraded and does not need to be discharged onto the ground to be subjected to sewage treatment, the formation in the oilfield is cleaned to remove the blockage, no corrosion, dead angle, precipitation or secondary well blockage is generated, and the blockage removal time does not exceed 24 hours.
Owner:GANSU HEIMA PETROCHEM ENG

Blocking remover for reservoir of oil well

The invention discloses a blocking remover for a reservoir of an oil well. The blocking remover is applied to the technical field of oil extraction in an oil field, comprises an agent A and an agent B, and is characterized in that the weight percentage of the agent A is 25-35%; the weight percentage of the agent B is 65-75%; the agent A comprises the following components by weight: 45-50% of petroleum mixed xylene, 1-2% of nonyl phenol polyoxyethylene (4) ether, and the balance of 0# diesel oil; the agent B comprises the following components by weight: 6-10% of glacial acetic acid or sulfamic acid, 2-2.5% of ammonium bifluoride, 2% of ammonium chloride, 1-2% of citric acid, 1.5-2% of corrosion inhibitor 7801, 3-5% of tertiary butanol, 0.5-1% of octyl phenol polyoxyethylene (10) ether and the balance of water. The blocking remover has the following effects that: the agent A and the agent B are respectively prepared so as to be beneficial to storing the blocking remover for a long time, the agent A of the blocking remover has strong dissolving capacity on crude oil heavy components, such as wax colloid asphalt, and the washing oil efficiency on oil sand is more than 90%. The dissolving rate of the agent B of the blocking remover on carbonate is more than 80%, and the corrosion speed on N80 steel is low and is smaller than 2 g/m<2>.h.
Owner:PETROCHINA CO LTD

Environmental-friendly micro emulsion cutting fluid

The invention relates to an environmental-friendly micro emulsion cutting fluid, which belongs to the field of chemical industry. The invention aims to provide the environmental-friendly micro emulsion cutting fluid, which not only is capable of protecting the environment but also is capable of performing cooling and lubrication actions in the metal cutting abrasive machining process. The environmental-friendly micro emulsion cutting fluid comprises 10# industrial white oil, sodium petroleum sulfonate, oleic acid, triethanolamine, alkylphenol polyoxyethylene OP-10, alkyl alcohol amido phosphate ester 6503, an antirusting agent monomer, tetradecyl alcohol or stearyl alcohol, benzotriazole, sodium tetraborate, sodium carbonate, triazine compound / benzisothiazolinone bactericide (NEUF652), a defoaming agent MS-455 and water. The environmental-friendly micro emulsion cutting fluid not only has the advantages of good lubricity of an emulsion-type cutting fluid and strong cleaning capacity of synthetic cutting fluid but also is capable of overcoming the defects that the emulsion-type cutting fluid is easy to go bad and stink and has a short service life and the synthetic cutting fluid has poorer lubricating property, and has the characteristics of good lubricity, strong cooling and cleaning capacity, long service life and the like.
Owner:FAW GROUP
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