714 results about "Ethanediols" patented technology

A P-contained flame-retarding ethanediol polyterephthalate / laminar silicate composition is prepared from dimethyl terephthalate (or terephthalic acid), ethanediol, laminar silicate, P-contained flame retardant, intercalator, dispersing medium and catalyst. Its advantages are high mechanical properties and refractory nature, and simple preparing process.

An additive for the clean fracturing liquid contains the quaternary ammonium salt with long-carbon-chain alkyl, ammonium dimethyloxide with long-carbon-chain alkyl, salicylate, ethanediol ether, low-carbon alcohol and water. A method for fracturing stratum includes such steps as preparing said clean fracturing liquid, pressing it into stratum via the jet hole of oil (or gas) well to form cracks in the stratum, pressing the sand-carrying liquid in it, releasing the pressure to close the crack, and returning the fracturing liquid back onto ground. Its advantages are simple apparatus and operation, and use of the fracturing liquid in very cold condition without heater.

An air conditioner using the cold of liquefied natural gas for automobile is composed of liquefied natural gas cylinder, coiled-tube beat exchanger arranged in said cylinder, sleeve-tube heat exchanger, finned heat exchanger, cold-accumulating ethanediol box, air cooling heat exchanger and liquid pump, which are communicated. The said fined heat exchanger is communicated with engine via low-pressure gas accumulator and condenser. The cooling water of engine is cooled by heat exchanger and then used to cool engine. Its advantages are better transient and steady-state performance and better cold balancing and regulating function.

The invention relates a side chain-containing aliphatic diol modified copolyester section and a preparation method thereof; the section is copolymerized by terephthalic acid, ethanediol, m-benzene dicarboxylic acid diethyl ester-5-sodium sulfonate or potassium sulfonate and side chain-containing aliphatic diol and is synthesized in a semicontinuous polymerzation device. The copolyester section of the invention can be dyed to dark color with cationic dye at room temperature and normal pressure; the crystallization property and the glass state temperature of the copolyester are reduced so that the prepared fibre has extremely soft hand feeling; the manufacturing process has no special demand on devices and the cost is low so that the preparation method is applicable to industrialized production.

A laser weldable PBT-series resin composition comprises a polybutylene terephthalate (PBT)-series resin (A), and at least one resin (B) selected from the group consisting of a polycarbonate-series resin (b1), a styrenic resin (b2), a polyethylene terephthalate-series resin (b3) and an acrylic resin (b4). The PBT-series resin (A) may be a PBT homopolyester, or a PBT-series copolymer modified with not more than 30 mol % of a copolymerizable monomer (e.g., a bisphenol compound or an adduct thereof with an alkylene oxide, and an asymmetrical aromatic dicarboxylic acid). The ratio (weight ratio) of the resin (B) relative to the PBT-series resin (A) [the former / the latter] is about 0.1 / 1 to 1.5 / 1. The resin composition may comprise a glass fiber. The resin composition is excellent in laser weldability, and can improve in welding strength of a shaped article formed from the resin composition.

The invention relates to a cement grinding aid, in particular to a cement grinding aid and a preparation method thereof. The cement grinding aid is prepared from, by weight, 13-18 parts of polymeric polylol, 8-12 parts of tri-isopropanolamine, 12-15 parts of polyol ether, 15-20 parts of ethanediol, 25-30 parts of triethanolamine, 15-18 parts of molasses, 13-15 parts of lignin, 0.03-0.06 part of sodium chloride, 0.5-1 part of silane coupling agents and 40-45 parts of water. By means of the obtained cement grinding aid, in the cement production process, the phenomena of clinker fine particle aggregation and ball pasting can be effectively improved, mobility of clinker particles is enhanced, thereby the pulverization effect of grinding media in a grinding machine for materials is enhanced, grinding efficiency can be improved by 15-20%, the cement machine-hour yield is increased, electricity consumption is greatly lowered, production cost is lowered, in addition, strength of cement at different ages can be remarkably improved, and flowability of the cement is improved.

The invention relates to an organic water soluble fertilizer, which belongs to a novel, efficient and organic hyperconcentration chelate fertilizer and is prepared from plant source organic matters, potassium humate, citric acid, amino acid, vitamin, monosaccharide, fructose, dextrose, polysaccharide, potassium sodium tartrate, zinc sulfate, copper sulfate, manganese sulfate, boracic acid, ammonium molybdate, ethanediol, monoammonium phosphate, monopotassium phosphate, phosphoric acid and the like through the processes of acidification, chelation and concentration. The organic water soluble fertilizer is suitable for being used for all plants in modes of leaf surface spray application, root filling, seed soaking, flushing application, drip irrigation and spray irrigation. The product is nontoxic and does not have hormone or residue, the crop growth and development can be regulated in a balanced way, the metabolism and the photosynthesis of the plants can be promoted, the aging of the plants can be delayed, the quality is improved, the yield is increased, and certain drought resistance, cold resistance and disease resistance effects are realized. 20 percent to 40 percent of soil fertilizer consumption can be reduced through using the organic water soluble fertilizer for many times, and the yield of the crops can be increased by about 10 to 40 percent.

The invention discloses a method for preparing silver nanowires with smaller diameters through mixing polyhydric alcohol, in which, silver nanowires with different diameters, different lengths and smaller diameters can be obtained by regulating the volume ratio, reaction temperature, and reaction time of ethanediol and diethylene glycol. The beneficial effects of the invention are: (1) the silver nanowires with different diameters and different lengths can be obtained, and the diameters of the silver nanowires may be controlled to be 40 nm or lower, even may be reduced to about 20 nm; (2) the reaction condition is not required to be accurately controlled, the uniformity of the diameters of the silver nanowires is easily controlled, the purity is relatively high, and can be prepared in a large scale; and (3) no expensive experiment apparatus is needed and the preparing cost is low.

A fire-extinguishing foaming chemical with covering function features that it contains F1157N or F1203, F3 or OBS or FC-4, JR-400 or sodium algate or CMC or HEC or cationic starch or chitosan or xanthan gum, CAB or LAB or MZL or K12 or APG, ethanediol butylether or propanediol butylether, glycol or diglycol or propanetriol, urea, anticorrosion agent and water through proportioning and compounding. Its advantages are high fire-extinguishing power, strong covering function and high effect on preventing evaporation of oil.

A process for preparing a polyester with low smelting point includes catalytic esterifying reaction between terephthalic acid, meta-phenyldiformic acid, ethanediol and 1,4-butanediol by two stages: at 160-200 deg.C under 0.05 MPa for 1-3 hr and at 220-250 deg.C under 0.15-0.3 MPa for 1-3 hr, and catalytic polycondensation reaction in negative pressure condition. Its smelting point is 100-200 deg.C.

The invention discloses a special high-property coating for chemical equipment. The special high-property coating comprises the following raw materials: novolac epoxy resin, phosphorus-containing acrylic resin, boric acid modified organic silicon resin, polytetrafluoroethylene resin, polyvinylidene fluoride, a carbon nano tube, ammonium polyphosphate, pentaerythritol, alumina powder, pyrophyllite powder, graphite, expanded perlite, modified attapulgite, cerium oxide, n-butyl alcohol, n-amyl alcohol, ethanediol, water, amine resin, melamine polyphosphate, N-phenyl-N'-cyclohexyl p-phenylene diamine, dodecanol, dipropylene glycol mono butyl ether, dimethyl phthalate, a coupling agent and an auxiliary agent. The special high-property coating for the chemical equipment, which is disclosed by the invention, has the advantages of good corrosion resistance and high-temperature resistance, high adhesive power and excellent flame-retardant property, can be used for the chemical equipment, is difficult to desquamate, good in protection effect and capable of prolonging the service life of the chemical equipment.

The invention relates to a nitrogen-doped graphene-loaded Pt-based alloy nanometre electrocatalyst and a preparation method thereof. According to the technical scheme, the preparation method comprises the following steps: uniformly stirring graphene oxide, ethanediol and N-methylpyrrolidone in a mass ratio of (30 to 60): (1100 to 2800): (500 to 1600), and performing an ultrasonic dispersion treatment, so as to obtain a uniformly-dispersed suspension liquid; adding a metal salt solution and an H2PtCl6.6H2O solution in the uniformly-dispersed suspension liquid, uniformly stirring, and performing an ultrasonic dispersion treatment, so as to obtain a precursor; heating the precursor to 90-180 DEG C in an oil bath in a stirring condition, insulating heat, and performing condensation reflux for 1 to 5 hours, so as to obtain a black turbid liquid; performing vacuum suction filtration on the black turbid liquid, sequentially washing by acetone, distilled water and absolute ethyl alcohol, and performing vacuum drying at a room temperature to obtain the nitrogen-doped graphene-loaded Pt-based alloy nanometre electrocatalyst. The preparation method disclosed by the invention is simple in process and low in energy consumption; the prepared nitrogen-doped graphene-loaded Pt-based alloy nanometre electrocatalyst is high in catalytic activity, good in stability, uniform in the dispersion of nanometre particles, and controllable in the particle size of the nanometre particles.

A hot alkali-soluble polyester fibre is prepared through adding 5-sodium sulfonate-ethanediol metaphenyl diformate (SIPE), metaphenyl diformic acid (IPA) and polyethanediol, drying, fusing, spinning, and stretching or thermal deforming to obtain preoriented yarn (POY), drafted yarn (DY), or low-elasticity yarn. Its advantages are high solubility in alkali solution and spinnability and low viscosity.

A process for treating the waste polyester gas generated by preparing poly-ethanediol terephthalate (PET) includes such steps as gas-liquid separation for removing the most of water, diluting it by mixing it with air, preheating, catalytic reaction under the action of catalyst which is the cellular blocks carrying noble metal, and returning the resultant tail gas back to diluting step and using it as the diluting gas.

The invention relates to a manufacturing method of an antibacterial deodorizing polyester fiber, which comprises the following steps of: compounding zinc oxide whiskers with sterilizing and antibacterial functions, palygorskite fibers and various antibacterial agents with different antibacterial effects into a broad-spectrum antibacterial agent; preparing the broad-spectrum antibacterial agent and ethanediol into antibacterial ethanediol in the presence of a tiny amount of sodium hexametaphosphate; when polymerization esterification rate reaches 85%-90%, adding the antibacterial ethanediol to a polycondensation kettle, and polymerizing to prepare a copolyester antibacterial polyester, or blending and fusing the broad-spectrum antibacterial agent and the conventional polyester to prepare a blended antibacterial polyester; and fusing, compounding and spinning the antibacterial polyester as a shell layer and PET (Polyethylene Terephthalate) and PTT (polytrimethylene Terephthalate) serving as a core layer together to obtain the shell-core antibacterial deodorizing polyester fiber.

The invention discloses a bicyclo ring cage substituted sesquialter oxosilane and the method for preparing the same and its application. The compound possesses high sesquialter constructure, the core is cage sesquialter oxosilane, the eight apical angle are 1- oxo- 1- phosphora- 2, 6, 7- trioxa bicyclo [2, 2, 2]- 4- methylene sorbate. The method comprises: dissloving catalyst and solvent, adding bicyclo ring cage coordination silicon, reacting while stirring at room temperature; heating to 60- 70 Deg .C, stopping reaction, sucting, distilling part of solvent from filtering liquid and putting it in fridge for cooling, a large amount of crystal will be generated two days later, putting it at room temperature for 1 hour to make the ethandiol crystal disslove, sucting and drying the crystal at 60 Deg. C. The epoxide resin adjuvant is characterized by ability of increasing toughness, fire-retardancy, heat-proof quality, abradability, weatherability and anti ultraviolet absorption for epoxide resin, and hardening function.

The present invention provides one kind of combined polymer-medicine micelle to control the release of hydrophobic medicine. The micelle contains two or more kinds of amphiphilic block copolymer and one or more kinds of hydrophobic medicine. The amphiphilic block copolymer includes hydrophilic segment of copolymer of ethanediol or ethylene epoxide and epoxypropane; and hydrophobic segment selected from biodegradable PDLLA, PDLA, PLGA and PCL or their mixture. The micelle exists in the state of water dispersing liquid or freeze dried powder. The combined poloymer-medicine may be prepared via solid phase melting and dispersing process, solvent evaporating process or dialysis process. The present invention makes it possible to control the release of medicine effectively.

The invention discloses a preparation method of magnetic chitosan. The preparation method comprises the following steps: dissolving sodium acetate and ferric chloride in ethanediol and reacting; after cooling to room temperature, washing with water and then with anhydrous ethanol; performing vacuum drying to obtain magnetic ferriferrous oxide; adding ultrasonically treated magnetic ferriferrous oxide into a mixed solution, adjusting the PH value to 11 and stirring and heating under the protection of N2; adding ethyl orthosilicate and continuing stirring; separating the product through a magnet and washing until the product is neutral; washing with anhydrous ethanol; performing vacuum drying to obtain Fe3O4 / SiO2 powder; dissolving chitosan in HCl; dropwise adding to the magnetic Fe3O4 / SiO2 water solution under the protection of N2; and adjusting the PH value to be neutral after reaction and performing vacuum drying to obtain the magnetic chitosan. The invention further discloses a method for adsorbing tannic acid. The adsorbing method comprises the following steps: adding magnetic chitosan into water to adsorb and separating through a magnet after saturation adsorption. The obtained magnetic chitosan is stable in chemical performance and renewable and can be recycled.

The invention discloses a composite type nano flame-retardant coating comprising the following raw materials in parts by weight: 22-25 parts of titanium pigment, 10-25 parts of talc powder, 10-15 parts of calcium carbonate, 5-8 parts of mica powder, 5-8 parts of bentonite, 2-8 parts of kaolin, 7-11 parts of a thickening agent solution, 1.0-1.4 parts of a dispersant, 33-40 parts of polyacrylic ester emulsion of which the mass percent is 50%, 0.05-0.2 part of an anti-mildew agent, 0.05-0.2 part of a defoaming agent, 2.1-3.1 parts of propanediol, 1-3 parts of ethanediol, 7-11 parts of purified water, 0.02 part of an initiator, 0.6 part of a leveling agent, 25 parts of a modified ammonia type curing agent, and the balance of a nano flame-retardant composite.

The invention belongs to the technical fields of water pollution treatment and photocatalytic materials, and particularly relates to a visible-light-driven photocatalyst Ag-AgCl-BiOCl and a preparation method and application thereof. The visible-light-driven photocatalyst is a composite photocatalyst which is obtained from AgCl and BiOCl through a coprecipitation method and denoted as Ag-AgCl-BiOCl. The preparation method comprises the steps that ethanediol and water are taken as solvent, the BiOCl-AgCl are subjected to coprecipitation in the solvent, precipitation is irradiated through a xenon lamp, part AgCl is resolved into Ag, and the Ag-AgCl-BiOCl composite photocatalyst is finally formed. The composite photocatalyst effectively increases absorption of the BiOCl within a visible light range, a larger specific surface area and the higher electron-hole separation efficiency are showed, and compared with pure BiOCl and AgCl, better adsorbability and photocatalytic activity are achieved. The visible-light-driven photocatalyst Ag-AgCl-BiOCl can be widely used for dye and pharmaceutical wastewater treatment.

A water-insoluble low-viscosity filming foam-type fire-extinguishing chemical contains perfluoroalkyl betaine or perfluoropolyoxypropene quaternary ammonium salt or perfluoroalkyl sulfonate or perfluoroalkyl sulfate, C12-C16 propylbetaine or C12-C16 ammonium dimethyloxide or C8-C12 sodium alkylsulfate or CX-C10 ammonium dimethyloxide or C8-C12 sodium alkylsulfate or CX-C10 alkyl polyglucoside, ethanediol butylether or propanediol butylether, alcohol-resistant high-molecular matches and water. Its advantage is no environmental pollution.

The invention provides a non-aqueous solvent carbon dioxide capture liquid, method and system and belongs to the field of carbon dioxide recovery. The non-aqueous solvent carbon dioxide capture liquid is prepared from, by weight, 60-80% of organic solvent and 20-40% of composite organic amine. The organic solvent comprises low alcohol and / or ethanediol. The composite organic amine comprises hindrance amine and active amine. The weight ratio of active amine to hindrance amine is (0.4-70):1. Hindrance amine contains primary amine or at least one piece of secondary amine, secondary amine is connected with secondary carbon atoms or tertiary carbon atoms, and primary amine is directly connected with the tertiary carbon atoms. Active amine comprises primary amine or secondary amine. The non-aqueous solvent carbon dioxide capture liquid has relatively low carbon dioxide desorption temperature and relatively low solvent specific heat capacity and latent heat of evaporation, therefore, energy consumption in the desorption process is effectively reduced, and the comprehensive capture cost of carbon dioxide is reduced.

A radon-screening water emulsoid paint used as decorative paint for preventing radon, benzene, xylene and formaldehyde from being educed from wall and adsorbing them contains water, hydroxyethyl cellulose, disperser, defoaming agent, levelling agent, light calcium carbonate, titanium oxide, bentone, talc powder, ethanediol, film forming agent, PVDF-acrylate copolymer and vinyl acetate-acrylate copolymer emulsion, and antibacterial mildew-proof agent.

The invention discloses a zinc-nickel alloy coating and a zinc coating nano modified sealant, and preparation and application methods thereof. The sealant comprises water-soluble polyurethane, a water-soluble silane polymer, a nano polytetrafluoroethylene emulsion, a nano silicon dioxide sol, a wetting agent, an accelerator and deionized water. The wetting agent is one or two of polyether modified alkyl copolymers or sodium 2-ethylhexyl sulfovinate, and the accelerator is one or two of ethanediol and 1,3-propanediol. The nano polytetrafluoroethylene is utilized to enhance the self-lubricating property of the sealing layer, and the nano silicon dioxide is utilized to enhance the hardness of the sealing layer, thereby obviously enhancing the lubricating property and wear resistance of the zinc-nickel alloy and zinc coating.

A biodegradable three-element copolymer with high mechanical and thermal performance is prepared from the raw material used for synthesizing butanediol polysuccinate, the raw material used for synthesizing ethanediol polysuccinate, hexanediol polysuccinate, etc, and the raw materialused for synthesizing ethanediol polyterephthalate, etc through atactic copolymerizing.

The invention relates to the field of synthesis of pharmaceutical chemistry and particularly relates to a specific method for ferroferric oxide, PDA-coated ferroferric oxide, pegylation and final drug-loading and various steps. A preparation method of pegylated polydopamine-coated drug-loaded magnetic nanoparticles specifically comprises the following steps: (1) synthesizing ferroferric oxide by adopting an alkaline coprecipitation method; (2) carrying out auto-polymerization on dopamine under an alkaline condition in the presence of the ferroferric oxide; (3) pegylating PDA-coated magnetic nanoparticles; and (4) carrying anti-cancer drug adriamycin to the magnetic nanoparticles by using hydrophobic interaction. The obtained composite nanodrug delivery system has the advantages of targeting delivery, high drug loading capacity and good biocompatibility.

The invention relates to a catalyst sizing agent for preparing a catalytic membrane electrode of a proton exchange membrane fuel cell. The catalyst sizing agent consists of an electric catalyst, proton conductor polymer distilled water and an organic solvent. The catalyst sizing agent is controlled in a colloid state, so that the pore structure of a prepared catalytic layer of a catalytic membrane electrode is improved, and the cell performance is enhanced. The conventional sizing agent for preparing the catalytic membrane electrode is in a solution state, so that the utilization ratio of a prepared electrode catalyst is not high, the porosity of a catalytic layer is very low, and the gas diffusion process is suppressed. In the invention, the composition and adding sequence of organic solvents in the sizing agent are changed. A preparation method of the catalyst sizing agent comprises the following steps of: conditioning a solution-state catalyst sizing agent with isopropanol, ethanol, ethanediol and the like; and dropwise adding the formed sizing agent into butyl acetate under ultrasonic oscillation condition to form a colloid-state catalyst sizing agent.

The invention provides a fresh flower preservative. The fresh flower preservative is mainly prepared from the following raw materials in parts by weight: 50 parts of saccharose, 0.1-0.9 part of zinc gluconate, 0.2-0.8 part of 8-hydroxyquinoline sulphate, 0.01-0.09 part of boric acid, 0.03-0.09 part of propylene glycol, 0.01-0.05 part of ethanediol, 0.02-0.06 part of citric acid, 0.01-0.07 part of ferrous sulphate, 0.04-0.08 part of monopotassium phosphate, 0.02-0.08 part of potassium sulphate, 0.01-0.09 part of magnesium sulphate, 0.01-0.05 part of an ethylene inhibitor, and 0.02-0.06 part of a growth regulator. The invention further provides a preparation method of the fresh flower preservative. Compared with the prior art, the fresh flower preservative provided by the invention is low in cost, simple to process, capable of effectively preserving flowers, and capable of avoiding environmental pollution.

The invention provides antibacterial ink for ceramic ink-jet printing and a ceramic tile with an antibacterial function. The antibacterial ink for the ceramic ink-jet printing comprises solvents and antibacterial agents which are uniformly dispersed in the solvents; the solvents are water solutions which are formed by 1, 2-propanediol and 1, 2-ethanediol; the antibacterial agents are formed by calcium phosphate and inorganic salt containing one or more antibacterial ions of silver, copper and zinc ions; the mass fraction of the calcium phosphate in the antibacterial agents is of 8 % to 20 % and the abundant is the soluble inorganic salt containing one or more antibacterial ions of silver, copper and zinc ions. The antibacterial ink can be used to printing the ceramic tile with the antibacterial function. Compared with the prior art, the antibacterial ink for the ceramic ink-jet printing has the advantages of enabling functions of the existing ink for the ceramic ink-jet printing to be enriched, enabling the ceramic pile which is produced by utilizing the antibacterial ink to have the antibacterial function, being high in whiteness, solving a color changing problem due to the fact that metal ions which are served as the antibacterial agents are restored or oxidized and being long in antibacterial effect.