519 results about "Propyl ether" patented technology

The invention relates to a blocking remover of a gas well shaft. The blocking remover comprises, by weight, 5-25% of an alcohol ether compound, 0.5-10% of a dispersant, 1-10% of a cleaning agent, and 0.5-5% of chelating agent, with the balance being a nitrogen-containing polar solvent, wherein the nitrogen-containing polar solvent is one selected from N,N dimethyl formamide, N,N dimethyl acetamide, and N-methyl pyrrolidone, the alcohol ether compound is one selected from glycol-ether, glycol-propyl ether, glycol-butyl ether, and diglycol-ether, the disperant whose micelle particle size is from 20nm to 100nm is a middle-phase microemulsion-type dispersant mixed by kerosene, water, a surfactant and a cosurfactant, the cleaning agent is one selected from allene diamine, acetonitrile and pentylamine, and the chelating agent is one selected from sodium citrate and EDTA. The blocking remover has the advantages that corrosivity is weak, that the speed of dissolving blockage is fast, that the product performance is stable in high temperatures, and that the blocking remover can reduce damages caused by water locking and fouling in areas close to gas wells, and can recover the permeability of storing layers.

The invention relates to a method for obtaining high pure dicarboxylic acid. The method comprises the steps of I. heating a termination fermentation broth for inactivation; II. acidizing to make dicarboxylic acid crystallized and precipitated, and filtering to obtain a filter cake of dicarboxylic acid; III. mixing the filter cake of dicarboxylic acid and an ether solvent to make the dicarboxylic acid dissolved, separating an organic phase and a water phase, wherein the ether solvent is ether, n-propyl ether, iso-propyl ether, butyl ether, amyl ether or hexyl ether; IV. adding organic an adsorbent to the organic phase obtained from the step III, and filtering to remove solid materials; and V. cooling the organic phase obtained from the step IV until dicarboxylic acid is crystallized and precipitated, filtering to obtain a filter cake of crystallized dicarboxylic acid, and drying the filter cake of crystallized dicarboxylic acid to obtain a dicarboxylic acid product with a purity, by weight, higher than 98.5%. The method overcomes the shortages of complex operation, high production cost, low product purity, high colourity, high equipment investment and the like in a conventional refining method.

The invention relates to a long-acting emulsion-type antirust fluid used for metal rust prevention. Every 100 parts of the antirust fluid include the following components according to parts by weight: 3-15 oil soluble surfactant, 1-10 alcohol ether type couplant, 1-10 oily-type rust preventive and the balance base oil, wherein the oil soluble surfactant is any one of petroleum sodium sulfonate with molecular weight ranging from 300 to 800, sodium heavy alkylbenzene sulfonate and sodium sulfanilate, the alcohol ether type couplant is any one of ethyl alcohol, ethyl ether, butyl ether, diethylene glycol monobutyl ether, diethylene glycol propyl ether, butyl glycol ether and ethylene glycol propyl ether, the oily-type rust preventive is any one of barium petroleum sulfonate, dinonyl naphthalenesulfonic acid barium salt and barium soap of petroleum ester oxide, and the base oil is any one of cycloalkyl base oil and paraffin base oil. The long-acting emulsion-type antirust fluid has the advantages of meeting the demands of short-term rust prevention of metal and having lower using cost.

The disclosed preparation method for acetylized glucal comprises: preparing the D-acetylized glucose catalyzed by acids (HClO4, H2SO4, ZnCl2, AlCl3, p-toluenesulfonic acid and methanesulfonic acid); without separation or purification, leading directly the product into HBr or equivalent (such as PBr3 and water) to obtain and then recrystallize the coarse 1-bromoacetyl glucose with one of ethyl ether, propyl ether and isopropyl ether; adding Zn, ZnCl2, methanol and Co-ion catalyst to prepare the coarse target; recrystallizing with alcohol for the refined product. This invention saves step and reduces cost.

The invention provides a preparation method of graphene. The preparation method includes the steps of firstly, preparing graphene oxide; secondly, using a silane coupling agent to modify the graphene oxide; thirdly, adding an initiator in the presence of the modified graphene oxide obtained in the second step, and copolymerizing N-vinyl pyrrolidone and polyethylene glycol monoallyl ether to obtain silane coupling agent modified graphene oxide dispersing liquid using copolymer as the dispersing agent; fourthly, adding gallic acid and tannic acid into the modified graphene oxide dispersing liquid obtained in the third step to perform reduction reaction so as to obtain the end-product graphene. The prepared graphene is promising in bio-application prospect and capable of forming stable and high-concentration dispersing liquid.

The invention discloses a water-based polyurethane composite emulsion and a preparation method thereof. The preparation method is characterized by comprising the following steps: by using acetone or butanone and acrylic monomer as solvents, polymerizing diisocyanate (HDI), isophorone diisocyanate (IPDI), mixed polyester polyalcohol, dihydroxymethylpropionic acid, 1,4-butanediol, trimethylolpropane monoene propyl ether, 2-hydroxypropyl acrylate and 2-hydroxyethyl acrylate to obtain carboxylic polyurethane; neutralizing with tertiary amine, and removing the solvents to obtain a self-emulsified double-bond-containing water-based polyurethane anionic emulsion; and by using the emulsion as a seed, adding acrylate monomer and a right amount interpenetrating-network crosslinking agent monomer to carry out pre-emulsification, and carrying out seed emulsion polymerization to obtain the composite emulsion in an interpenetrating network structure. The invention has the advantages of energy saving, environmental protection, high early bonding force, safe and reliable technique and stable product quality.

The invention relates to a hyperbranched polysiloxane grafted graphene/bismaleimide composite material and a preparation method thereof. The composite material is prepared by casting for forming and comprises 0.1-10 weight parts of graphene modified by hyperbranched polysiloxane, 100 weight parts of diphenylmethane bismaleimide and 10-100 weight parts of bisphenol A diene propyl ether, wherein for further raising the dispersibility of graphene in resins and the interface bonding strength between the graphene and resins, the graphene is modified by conducting silicon-hydrogen addition polymerization; according to the bisphenol A diene propyl ether included in the resins, the prepolymer has low viscosity in a wide temperature range, thus the dispersibility of graphene in benefited; the bisphenol A diene propyl ether can be rearranged into 2,2'-diallyl bisphenol A at a high temperature to react with the diphenylmethane bismaleimide, thus the strength of the resins is guaranteed. The prepared composite material has good mechanical properties and excellent friction properties, and can be used as slide plates of non-lubricated water pumps or dynamic seal coatings of engines, etc.

The core structure of 2-(1',2',3'-triazole-4'-benzyloxy)-1,3,4,6-O-acetyl-D-glucose with an anti-colorectal carcinoma activity is that a 1,2,4-triazole derivative substitutes 2-site of 1,3,4,6-O- acetyl-D-glucose. The above compound has a good activity of inhibiting colorectal carcinoma cells, and can be used as an anti-colorectal carcinoma medicine. A synthesis method of the above compound comprises the following steps: 2-amino-D-glucose hydrochloride and an azidation reagent are used as raw materials to generate a 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate under an alkaline condition; 3-propargyl bromide and phenylcarbinol react under the action of sodium hydride to generate phenyl propargyl ether; and the 2-azido-1,3,4,6-O-acetyl-D-glucose intermediate and phenyl propargyl ether undergo a click reaction in a solvent under the catalysis of monovalent copper to generate 2-(1',2',3'-triazole-4'-benzyloxy)-1,3,4,6-O-acetyl-D-glucose.

The invention discloses high-wear-resistant antibacterial acrylate paint. The high-wear-resistant antibacterial acrylate paint is prepared from the raw materials: an aqueous acrylate emulsion, alkyd resin, organosilicon modified unsaturated polyester resin, silica sol, cellulose acetate butyrate, polyvinyl pyrrolidone, modified nano-titania, calcium carbonate whiskers, octadecyl trimethyl ammonium chloride modified montmorillonite, hollow glass beads, zinc oxide, ethylene glycol mono-n-propyl ether, di-propanediol butyl ether, triethylene glycol monoethyl ether, an anti-settling agent, a humectant, an antifoamer, per-methoxylation melamine resin, 3,5-dimethyl-2-aminobenzoic acid, trimethylaniline, a leveling agent, vinyl triethoxysilane and deionized water. The high-wear-resistant antibacterial acrylate paint provided by the invention is high in hardness, good in wear resistance, excellent in antibacterial performance and long in service life.

The invention discloses a waterproof high-hardness waterborne polyurethane coating which is characterized by comprising the following components in parts by weight: 65-80 parts of modified waterborne polyurethane, 20-35 parts of waterborne polyaniline, 3-6 parts of polyisocyanate, 5-20 parts of nano-silica, 3-9 parts of isopropanol, 5-10 parts of ethylene glycol propyl ether, 0.5-1.6 parts of dipentaerythritol, 15-20 parts of polydimethylsiloxane, 3-8 parts of gamma-isocyanate propyl triethoxy silane, 3-8 parts of polytetrafluoroethylene, 0.5-3 parts of modified carbon nanotubes, 5-20 parts of precipitated barium sulphate, 2-6 parts of amino resin, 3-8 parts of zinc powder and 30-60 parts of water. The waterproof high-hardness waterborne polyurethane coating is good in water resistance, high in harness and long in service life.

Soil is removed from cotton and/or a cotton/wool blend material and the resoilability of the material is reduced by a process which comprises contacting the material with a composition comprising nanoscale particles having a particle size of from 5 to 500 nm wherein the particles are comprised of of precipitated silicas, aerogels, xerogels, Mg(OH)₂, boehmite (Al(O)OH), ZrO₂, ZnO, CeO₂, Fe₂O₃, Fe₃O₄, SiO₂, TiN, hydroxy.apatite, bentoite, hectorite, SiO₂:CeO₂, SnO₂, In₂O₃:SnO₂, MgAl₂O₄, HfO₂, SiO₂ Sols, Al₂O₃ sols, TiO₂ sols, and mixtures thereof and a hydrophilizing agent selected from the group consisting of ethanol, n- or i-propanol, butanols, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether, propylene glycol methyl, ethyl or propyl ether, dipropylene glycol monomethyl or monoethyl ether, diisopropylene glycol monomethyl or monoethyl ether, methoxy, ethoxy or butoxytriglycol, 1-butoxyethoxy-2-propanol, 3-methyl-3-methoxybutanol, propylene glycol t-butyl ether, alcohols, more particularly C_1-4 alkanols, glycols and polyols and polyethylene glycol liquid at room temperature, carboxylic acid esters and mixtures thereof.

The invention discloses an emulsion composition which comprises a cold sensitizer, a heat sensitizer and water, wherein the mass ratio of the cold sensitizer to the heat sensitizer is 1:0.01-100; the cold sensitizer comprises at least one of piperitol, menthyl lactate, hexa-carbon cyclic amide derivative, non-carbon cyclic amide derivative, mint raw oil, mint oil, mint essence, mint leaf extract, water-soluble menthol and water-soluble mint oil; and the heat sensitizer comprises at least one of vanillyl butyl ether, citronellol n-propyl ether, citronellol isopropyl ether, citronellol isobutyl ether, citronellol n-amino ether, citronellol isoamyl ether, citronellol n-hexyl ether, citronellol methyl ether, citronellol ether, gingerol, shogaol, zingerone, capsaicin and capsaicine. According to the emulsion composition and a wet tissue applying emulsion composition, the preparation process is simple, and the cost is low; a plurality of feeling organs of the skin of a human body can be simulated; and compared with a product which only stimulates a single feeling organ of the human body, the emulsion composition has relatively long refreshing time.

The invention relates to a cleaning agent for a crystal lamp and a method for preparing the cleaning agent for the crystal lamp. The cleaning agent is mainly used for cleaning the crystal lamps of home and hotels and can also be used for cleaning other glass products. The cleaning agent is used for overcoming the defects of the prior art, has efficient cleaning capability and quickly disintegrates dust and dirty marks which are adhered to crystal lighting, disassembling, assembling and washing are not needed, so that time and labor are saved; the production technology is simple, and the production process is not dangerous; and after the cleaning agent is used, no water mark is left on crystal lighting surfaces. The cleaning agent selects a formula as follows by weight percent: 1.50-4.50 of coconutt diethanol amide, 1.0-3.0 of fatty alcohol-polyoxyethylene ether aeo-9, 2.0-4.0 of sodium alcohol ether sulphate, 1-3 of propylene glycol n-propyl ether, 3-5 of 2-methyl-2,4-pentanediol, 10.0-15.0 of ethanol, 8.0-10.0 of isopropyl alcohol, 3.0-5.0 of citric acid, 1.0-3.0 of ethylenediaminetetraacetic acid disodium salt, an appropriate amount of essence and the balance of deionized water.

The invention discloses an environment-friendly heat-resistant waterborne polyurethane coating. The raw materials of the waterborne polyurethane coating comprise the following components in parts by weight: 50-80 parts of modified waterborne polyurethane, 10-30 parts of waterborne acrylic resin, 10-20 parts of epoxy resin, 5-8 parts of aliphatic polyisocyanate, 15-30 parts of organically modified clay, 8-20 parts of modified nano-cellulose, 5-20 parts of silk fibroin, 3-8 parts of nanometer titanium dioxide, 10-18 parts of nanometer montmorillonite, 5-8 parts of vegetable oil, 1-1.8 parts of glycerol, 0.5-1.8 parts of ethylene glycol propyl ether, 0.8-1.9 parts of propylene glycol monomethyl ether, 0-1.5 parts of pentaerythritol, 1-3 parts of organosilicone microspheres and 3-6 parts of modified carbon nanotubes. The environment-friendly heat-resistant waterborne polyurethane coating disclosed by the invention has the advantages of good heat resistance, strong water resistance, high hardness and long service life.

The invention provides an environment-friendly acrylate grouting material, as well as a preparation method and an application thereof. The material mainly comprises the following components in parts by weight: a main agent, namely 100 parts of methacrylic acid-beta-hydroxyethyl ester, a crosslinking agent which includes 5-30 parts of hydrophilic compound containing a diallyl ether functional group, 1-5 parts of initiator and 0.5-3 parts of accelerant, 0-20 parts of an adjuvant, and a solvent, namely 2-1,000 parts of water. The method comprises the following steps: firstly, mixing the main agent, the crosslinking agent, the accelerant, the adjuvant and a part of solvent evenly to form a solution A in use; then dissolving the initiator into a residual solvent to form a solution B; and finally mixing the solution A with the solution B evenly, and solidifying at room temperature. According to the grouting material disclosed by the invention, the technical problem that the existing organic grouting material cannot be grouted once after being mixed with an inorganic grouting material, and the technical problem that the existing grouting material has poor durability, low strength, poor water solubility, low water expansion rate and high toxicity are solved.

The present invention relates to a photocurable composition which exhibits excellent adhesiveness not only to thermoplastic resins such as PET and polyimide but also to adherends of metal oxides such as IZO and metals such as gold, more particularly to a photocurable composition which comprises a urethane oligomer (A) having two or more allyl ether and/or vinyl ether groups and a polythiol (B) having two or more thiol groups.

The invention discloses organic silicone modified styrene-butadiene latex and a preparation method thereof. By adopting a core-shell emulsion polymerization process, the latex takes deionized water as a dispersion medium, and butadiene and styrene as main monomers, adopts an organic silicone monomer for functional modification, and uses reactive emulsifiers, such as allyl ether sulfonates, acrylamide sulfonates, maleic acid derivatives and the like. The particle size of the latex is 120-150nm; the particle size distribution presents relatively narrow monodispersion; the liquidity is good; the viscosity is appropriate; the latex has very good mechanical stability and chemical stability, remarkable improvements on alkali resistance, water resistance, yellowing resistance and the like, and particularly solves the defects that present acrylate emulsion in the market is not good in alkali resistance or water resistance when used on a textile coating of a fiberglass mesh, the coating yellows easily, and the present acrylate emulsion is sticky when heated and fragile when cooled, therefore, the comprehensive performance of the latex is greatly superior to those of the commonly used acrylics and modified emulsion.

The invention mainly relates to a new method for preparing porous hydrogel by adopting the low temperature photopolymerization. In the method, the temperature of the low temperature environment is 0-150 DEG C; the hydrogel uses one or two of epoxy acrylate, urethane acrylate, polyester acrylate, polyether acrylate and acrylic resin as a main body; and one or water, ethanol, acetone, methanol, acetonitrile, dioxane, chloroform, ethyl acetate, butyl acetate, tetrahydrofuran, propanol, butanol, dichloromethane, toluene, diethyl ether, propyl ether, heptane, cyclopentane, cyclohexane and petroleum ether is used as solvent; the weight proportion of acrylic resin is 10%-500%; and the initiator adopts common photoinitiator BP, 651, 907, ITX, 1173, 184, 2959, 369, TPO, 819, CQ or 784 and is 0.1wt%-5wt% of acrylic resin.

The invention relates to a preparation method for a nano-antibacterial coating, belonging to the technical field of coating preparation. The preparation method comprises the following steps: performing surface modification on nanometer titania with stearic acid, such that carboxyl in the stearic acid and hydroxyl in nanoparticles perform a reaction like a reaction of acid and alcohol into ester, so as to transform the surface of the titania from the polarity to the nonpolarity, thereby obtaining lipophilic nano titania; then, performing surface modification on nano iron trioxide with vinyl triethoxyl silane and glycidyl 3-(trimethoxysilyl)propyl ether; mixing the lipophilic nano titania and the modified iron trioxide to form colloidal fluid; next, mixing the colloidal fluid and substances, such as polyethersulfone resin to form an antibacterial paint and finally curing the antibacterial paint to form the antibacterial coating. The anti-aging performance of the nano-antibacterial coating prepared by the preparation method is improved by 20 to 25 percent; under the temperature of 200 to 300 DEG C, the antibacterial ratio generally reaches 95 percent or more. The nano-bacterial coating has a good antibacterial effect and can be widely applied to the field of household appliances and daily supplies.

The invention discloses a low-carbon energy-saving gas, relating to a gas fuel, in particular to an industrial or civil gas fuel. The low-carbon energy-saving gas comprises the following components in proportion by weight: 60-80 of dimethyl ether, 20-36 of methanol, 1-3 of additive and 0-0.2 of nano nickel liquid suspension; wherein the additive comprises the following raw materials in proportion by weight: 15-25 of propyl ether, 0.3-0.7 of dicyclopentadienyl iron, 1-2 of naphthenate, 1-3 of anti-livering agent, 1-2 of preservative, 1.5-2.5 of dispersing agent, 8-12 of stabilizing agent, 1.5-2.5 of inhibiting agent, 1-1.4 of lanthanum(III) 2-ethylhexanoate and 0.2-0.4 of nano nickel liquid suspension. The invention solves the problems of overhigh cost, environment pollution and potential safety hazard in the prior art.

The invention discloses a fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating and a preparation method and a utilization method thereof. The coating comprises a coating system and a curing agent; the coating system comprises epoxy resin, polytetrafluoroethylene particles, polyperfluoromethyl isopropyl ether and an organic solvent; the curing agent is prepared by reaction of diethylenetriamine and perfluorobutyric acid. The preparation method includes preparation of the coating system and preparation of the curing agent. The utilization method includes: dissolving the curing agent into a diluent, adding an obtained curing agent solution into the coating system, well mixing, coating to a required surface and curing. The fully-organic multiply-fluorinated epoxy super-hydrophobic composite coating has advantages of excellent super-hydrophobic property, favorable abrasion resistance, water impact resistance, corrosion resistance, high adhesive power, wide application range and the like. The preparation method is simple and easy to implement and suitable for large-scale application.

The invention belongs to the field of preparation of aromatic sulfones organic compounds, and in particular relates to a method for preparing bisphenol S allyl ether (including bisphenol S diallyl ether and bisphenol S monoallyl ether). The method provided by the invention comprises the following steps of: (1) carrying out an etherification reaction: heating and reflowing bisphenol S and allyl halides in an alkaline solution to react for 1-8 hours under the effect of a phase transferring catalyst; (2) recycling the catalyst; (3) separating diallyl ether (DAE) and allyl bisphenol ether (ABE); (4) refining the DAE; and (5) refining the ABE. The method disclosed by the invention has the advantages of simpleness in operation, convenience for recycling the catalyst and the solvent, environment friendliness, high product yield and purity and low manufacturing cost; and the method is suitable for the industrial production.