711 results about "Ethanediols" patented technology

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.

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 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.

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 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.

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 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.