326results about How to "Reduce surface activity" patented technology

The invention discloses a lithium ion battery and a positive material, the positive material possesses a core-shell structure, the material of a core layer is at least one of lithium cobaltate, a ternary material and a lithium manganese material, the material of a shell layer is lithium nickel manganese spinel. The preparation method comprises the following steps: preparing the sol shell layer material, then adding the core layer material in the sol, stirring, drying and calcining to prepare the lithium ion battery positive material with the core-shell structure. In addition, the invention also discloses the lithium ion battery prepared by the positive material with the core-shell structure, the end of charge voltage is 4.3-4.7V(vs. Li), the lithium ion battery has excellent charge and discharge cycling performance and high temperature storage performance under high voltage.

The invention provides a preparation method of cubic ultra-fine calcium carbonate particles. The method comprises the following steps: (1) adding a nucleation promoter to calcium hydroxide suspension liquid, wherein the nucleation promoter is selected from more than one of glucose, sucrose or sodium citrate; (2) carbonizing by introducing carbon dioxide until the pH value is 8-12, adding a crystal modifier and ageing for 0.5-10 hours, wherein the crystal modifier is selected from one of sodium chloride, sodium carbonate, sodium bicarbonate or sodium hydroxide; (3) further introducing carbon dioxide and carbonizing until the pH value is 6.5-7.0; (4) coating by adding a coating agent, filtering and drying to obtain a product, wherein the coating agent is selected from a resin acid, a resin acid alkali metal salt, a fatty acid or a fatty acid alkali metal salt. According to the calcium carbonate particles, the particle sizes are 90-180nm, the calcium carbonate particles are in a cubic shape, and the specific surface area is 10-18m<2> / g. Thus, the cubic ultra-fine calcium carbonate particles can be used as functional fillers in coating, rubber, plastic and sealant industries.

Antimicrobial compositions that provide enhanced immediate and residual anti-viral and antibacterial efficacy against rhinovirus, rotavirus, coronovirus, respiratory syncytial virus, Gram-positive bacteria, Gram-negative bacteria and combinations thereof. More specifically, antimicrobial compositions comprising an organic acid or organic acid mixture and a short-chain anionic surfactant having at least one of a large head group; a branched alkyl chain and an unsaturated alkyl chain. Further, products incorporating the antimicrobial compositions of the present invention and methods of using the antimicrobial compositions and products are disclosed herein.

Therapeutic antimicrobial compositions and methods for providing enhanced immediate and residual anti-viral and antibacterial efficacy against rhinovirus, rotavirus, coronovirus, respitory syricytial virus, Gram-positive bacteria, Gram-negative bacteria and combinations thereof. More specifically, therapeutic antimicrobial compositions comprising an organic acid or organic acid mixture and a short-chain anionic surfactant having at least one of a large head group; a branched alkyl chain and an unsaturated alkyl chain, and therapeutic methods of use thereof.

The present invention is a negative electrode material for non-aqueous electrolyte secondary batteries, comprising at least: particles wherein silicon nanoparticles are dispersed in silicon oxide (silicon oxide particles); and a metal oxide coating formed on a surface of the silicon oxide particles. As a result, there is provided a negative electrode material for non-aqueous electrolyte secondary batteries that enables the production of a negative electrode suitable for lithium-ion secondary batteries and the like that provides improved safety and cycle performance over conventional negative electrode materials.

The invention relates to a preparation technology of a powder functional material, in particular to a preparation method of fibrous iron-nickel alloy powder. A coordinated coprecipitation-thermal decomposition-reduction process is adopted to synthesize a precursor coprecipitate product of the fibrous iron-nickel alloy powder in a Ni<2+>-Fe<2+>-H2NCH2CH2NH2-(H3NCH2CH2NH3)<2+>-SG<n->-C2O4<2->-H2O system at the normal temperature and pressure (SG<n-> stands for Cl<->, SO4<2->, NO3<-> and CH3COO<->), and the precursor is thermally decomposed and reduced under an weak reducing atmosphere to obtain the fibrous iron-nickel alloy powder; anti-oxidation treatment of surface of the fibrous iron-nickel alloy powder is carried out in the same device under the regulation and control of the temperature and atmosphere. The whole preparation process is safe, reliable, nontoxic and pollution-free. The iron-nickel alloy powder produced by the preparation method is fibrous and porous, and has small particle size, large specific surface area; and the iron-nickel alloy powder has strong oxidation resistance, and can meet requirements of a plurality of purposes.

The invention relates to microemulsion for improving core wettability. The microemulsion consists of a Gimini quaternary ammonium salt cationic surfactant, a nonionic surfactant and an aid of lower alkyl alcohol; a mass ratio of the Gimini quaternary ammonium salt cationic surfactant to the nonionic surfactant is 1:(1-60); and the aid accounts for 30 to 50 mass percent of the microemulsion. The microemulsion has a characteristics of oil-water miscibility, can improve the wetting condition of a stratum to a neutral weakly waterwet condition, and obviously reduce the surface tension of working fluid so as to reduce capillary pressure, remove water lock, reduce starting differential pressure and contribute to the flowback of the working fluid, so that the stratum is prevented from being damaged by the working fluid and the effect of stably increasing production of an oil gas well is achieved.

The invention provides a silvered aramid conductive fiber and a preparation method thereof. The preparation method is conducted according to the steps as follows: a. coarsening: coarsening the aramid fiber through putting the fiber into a mixed solution of sodium hydroxide, absolute ethanol and the balance of water, and neutralizing the fiber by rinsing; b. hydrolyzing: hydrolyzing the coarsened aramid fiber by putting the fiber into an acid solution; c. activation of palladium salt: activating the hydrolyzed aramid fiber subjected to activation of palladium salt in step b by putting the fiber into a mixed solution of hydrochloric acid, palladium chloride, stannous chloride and the balance of water; d. reducing: reducing the palladium salt activated aramid fiber in step c by putting the fiber into a mixed solution of hydrochloric acid, sodium hypophosphite and the balance of water; e. chemical silvering: chemical silvering the reduced aramid fiber in step d by putting the fiber into a chemical silvering solution of silver nitrate, sodium hydroxide, aqua ammonia, a complex agent, a reducing agent and the balance of water; f. drying: drying the chemical silvered aramid fiber in step e in the conventional manner to obtain the silvered aramid conductive fiber.

The invention provides a surface treatment method of automobile covering parts. The surface treatment method comprises the following steps of: 1) hanging and fixing automobile covering parts to be treated, then carrying out spraying pre-degreasing, dipping main degreasing and spraying degreasing sequentially, and washing with water; 2) carrying out surface conditioning by using a surface conditioning agent, then dipping and phosphatizing, and washing with water; 3) carrying out passivating treatment by using a chromium-free passivating agent, and then washing with water; and 4) carrying out electrophoretic painting, and then washing with water. A three-way degreasing technology of spraying, dipping and spraying is adopted by the scheme of the surface treatment method, so that grease is thoroughly cleaned. Due to a dip technology, the inner cavity of a complex workpiece is also cleaned. A reverse feeding method is adopted by the surface treatment method, and a degreasant of a degreasing work (the third tank) is always kept very fresh, so that the degreasing effect is the best, the utilization rate of the degreasant is also improved, and at the same time, the cost is saved. Due to the implementation of additional degreasing step, grease on the workpiece surface is removed completely, and the binding force of coatings is enhanced, so that the anti-corrosion effect is remarkably improved.

The invention discloses an electrolyte containing an inorganic additive and a lithium-ion battery containing the electrolyte. The electrolyte comprises an organic solvent, a lithium salt electrolyte, the inorganic additive and an organic additive; the inorganic additive is one or a mixture of two or more of dry aluminum oxide, dry silicon oxide, dry magnesium oxide, dry zinc oxide and dry titanium dioxide and has the particle size less than 100 nm. The electrolyte provided by the invention can reduce the surface activity of a cathode material, thereby suppressing side reaction between an electrode material and the electrolyte, increasing a battery charging voltage and improving the cycle comprehensive performance of the electrolyte, can improve wettability and good imbibition of the electrolyte for a diaphragm and suppress a micro-short circuit, can efficiently improve the electrochemical performance of a lithium battery for neutralizing free harmful gases such as hydrogen fluoride and fluorine gas, and can reduce water content in the electrolyte.

The invention relates to a granite powder composite mineral admixture and a preparation method therefor. The admixture contains raw materials, i.e., modified granite powder, modified pulverized coal ash, slag and a reinforced activator, wherein the mass content of the former three kinds of raw materials is as follows: the mass content of the modified granite powder is 40 to 70 parts, the mass content of the modified pulverized coal ash is 10 to 25 parts, the mass content of the slag is 15 to 35 parts, the sum of mass contents of the three kinds of raw materials is 100 parts, and the mass of the reinforced activator accounts for 0.1% to 0.3% the total mass of the former three kinds of raw materials. The preparation method comprises the steps: proportionally weighing the raw materials, i.e., the modified granite powder, the modified pulverized coal ash, the slag and the reinforced activator, mixing the raw materials, then, putting the mixture into a ball mill, carrying out milling until the screening volume of a square-mesh screen with the pore size of 45 microns is lower than 10%, baking the obtained screen underflow, and carrying out cooling, thereby obtaining the granite powder composite mineral admixture. According to the scheme of the invention, the activity of the granite powder is enhanced, the utilization ratio of the granite powder is increased, and thus the economic and social benefits are very good.

The invention discloses a preparation method of a water-based high flash aluminum pigment for automobiles. The method comprises the steps of putting spherical aluminum powder, steel balls as grinding mediums, environmentally friendly solvent oil, oleic acid or erucic acid, and a surfactant into a ball mill, sealing the ball mill, performing ball milling, discharging with the environmentally friendly solvent oil, conveying the materials into a vibrating sieve through a pipeline to sieve, removing screen tailings, performing filter pressing to obtain filter cakes with the solid content being of 80 percent, putting the filter cakes and alcohol or ether solvents with good water compatibility into a reactor for mixing and dispersing, sealing the reactor, increasing the temperature under the protection of inert gases, then dropping water-soluble high polymer monomers and azo-initiators, increasing the temperature after the dropping is finished, holding the temperature, discharging, and performing filter pressing to obtain finished products. The method has the advantages that the environmental protection effect is good; the coating is tight, and a coating layer is difficult to be damaged; the water solubility is good, and the pigment can be directly diluted with water; and the pigment is easy to dissolve in water-based automobile paint systems, and is beneficial to the dispersion of the aluminum pigment.

The invention relates to polyphenylene sulfide (PPS) / nano-calcium carbonate mixture and a preparation method for the fiber thereof. The method includes the steps of mixing polyester slices, nano-calcium carbonate particulates, reactive monomer and other additives in a high speed mixer while rising the temperature to approximately 205 DEG C so as to enable the polyphenylene sulfide slices to intenerate and the nano-calcium carbonate and other additives to be evenly adhibitted onto the polyphenylene sulfide slices, without heavy conglutination between the particles on the polyphenylene sulfide slices. The polyphenylene sulfide (PPS) / nano-calcium carbonate mixture prepared through the method has excellent processability and can be made into textile fiber, thin film or reinforcement plastics by means of melt blown or melt spinning process. The invention can greatly reduce the production cost and bring good economic benefits. The polyphenylene sulfide(PPS) / nano-calcium carbonate mixture has good thermal stability, flame retardancy, chemical corrosion resistance and good mechanical property and spinning property; therefore the polyphenylene sulfide(PPS) / nano-calcium carbonate mixture is widely applicable to the industrial sectors like chemical industry, light industry and mechanical industry, and is particularly good for accelerating the popularization and application of high-temperature house-bag dust removal. The preparation method has the advantages of simple process, easy control, low cost, short production period, environment friendly and particularly being applicable to the industrial production.

The invention provides surface modified titanium dioxide particles and a preparation method thereof. The surfaces of the titanium dioxide particles are coated with a compact inorganic coating layer, the particle size is 0.5-5mum, and the titanium dioxide particles are spherical particles. Water is added into titanium dioxide to prepare suspension liquid, sodium hexametaphosphate is added into the suspension liquid and stirred for two hours, a water-soluble silicon compound is added, and slurry standing is performed to obtain mixed slurry. A membrane forming agent aluminum sulfate prepared solution is added into the mixed slurry of 80-100 DEG C, and inorganic base is added into the mixed slurry to enable the slurry to be stirred evenly, then inorganic acid is added to adjust the mixed slurry to be neutral, and the stirring is kept to enable aluminum salt to be fully hydrolyzed. The inorganic acid is added to adjust potential of hydrogen (pH), then lanthanum oxide is slowly added to perform curing, suction filtration and washing are performed after re-curing, and filter cakes are dried and grinded to obtain the surface modified titanium dioxide particles. The preparation method reduces the titanium dioxide surface activity, increase titanium dioxide dispersibility, improves whiteness and weather resistance of titanium dioxide, and is simple and easy to operate, low in cost and free of pollution.

The invention discloses a reducing-type polycarboxylate superplasticizer and a preparing method thereof. The polycarboxylate superplasticizer is obtained by copolymerizing alkenyl polyether macromonomer, acrylic acid, maleic acid monoalkyl ester and maleic acid polyoxyethylene / polyoxypropylene polydimethylsiloxane ester under the condition of the existence of an initiator and a chain transfer agent and in an aqueous solution with the temperature being 20 DEG C-80 DEG C. The reducing-type polycarboxylate superplasticizer has a good reducing effect under a low admixture dosage; meanwhile, the reducing-type polycarboxylate superplasticizer has a certain water reducing capability and a small influence on the intensity of concrete, and is excellent in performance.

The invention discloses a microemulsion-type washing liquid system for an oil-based drilling fluid and a preparation method thereof. The microemulsion-type washing liquid system mainly solves the problem that the existing washing solution has low washing efficiency, a poor wetting reversion function and poor interface bonding quality. The washing liquid system comprises a microemulsion-type washing agent and a base liquid. The microemulsion-type washing agent comprises, by weight, 100 parts of clear water, 4-6 parts of an anionic surfactant, 3-6 parts of a nonionic surfactant, 6-10 parts of a cosurfactant and 7-15 parts of a salt. The base liquid is an aqueous solution containing a certain mass percentage concentration of a weighting agent and polymers. When the washing liquid contacts with an oil phase in the oil-based drilling fluid, a microemulsion can spontaneously form, can efficiently remove the residual oil-based drilling fluid, has a good wetting reversion capability, guarantees bonding of a cement sheath and an annulus interface and has a wide application prospect.

The invention provides a grape preservative and a preparation method thereof, which belongs to the fruit preservation field. The mentioned grape preservative includes the following ingredients with parts by weight: 0.5-3 parts of cinnamon essential oil, 0.5-2 parts of zanthoxylum bungeanum volatile oil, 0.5-2 parts of sodium alginate, 6-8 parts of sucrose fatty acid ester, 4-6 parts of polysorbate 80, 1-5 parts of propionic acid, 1-4 parts of calcium chloride, 2-4 parts of vitamin C, 2-4 parts of potassium sorbate, 10-20 parts of chitosan citrate solution and 10-20 parts of water. The preparation method comprises the steps of mixing the sodium alginate, sucrose fatty acid ester, polysorbate 80, propionic acid and water and fully dissolving them; then adding the essential oil to get composite essential oils; adding the composite essential oils into the chitosan citrate solution and blending. After picking of grapes, the diseased fruit and bad fruit are removed, the grapes are soaked in the mentioned preservation liquid for 3- 8 min. After taking out the grapes and draining them, the grapes are stored. The grape preservative mentioned in the invention can greatly reduce or delay decrease of quality and decay during storage process of grapes, which has outstanding grape preservation effect.

The invention discloses a Chinese medicine combination for treating cardio-cerebral vascular diseases, which is composed of raw materials with the following parts by weight: 30-50 parts of radix astragali, 20-25 parts of angelica, 15-20 parts of hemlock parsley, 30-50 parts of salvia miltiorrhiza, 15-20 parts of pseudo-ginseng, 15-20 parts of hawkthorn and 20-30 parts of radix puerariae; the Chinese medicine combination of the invention has ingenious compatibility, simple prescription, broad source of raw materials, low price as well as the efficacies of tonifying both qi and blood, balancing yin and yang, activating blood circulation and dissolving stasis; the Chinese medicine combination can soften blood vessels through reducing blood fat and blood viscosity and eliminating blood scales and finally achieve the purposes of smoothing blood circulation and activating cardio-cerebral function; furthermore, the Chinese medicine combination has unique efficacy for resisting atherosclerosis as well as significant curative effect on cardio-cerebral vascular diseases like coronary heart disease, cerebral thrombosis, and the like; the total clinical effective rate can reach over 95% and the Chinese medicine combination can achieve good preventive and health care effect through long-term oral administration and has safe oral administration and no toxicity and side effect.

The invention provides Ta-contained 3D printing cobalt chromium molybdenum alloy powder for the dental department and a preparation method thereof. The chemical components of the alloy power comprise,by weight, 26.0%-30.0% of Cr, 8.0%-10.0% of Mo, 0.5%-5.0% of Ta, 3.0%-8.0% of W and the balance Co. The preparation method of the Ta-contained 3D printing cobalt chromium molybdenum alloy powder comprises the three steps of mother alloy smelting, powder atomization, powder screening and drying treatment. According to the alloy powder, the particle size, the sphericility degree and the mechanicalproperty are ensured, and meanwhile, the gold-procelain bonding property, the thermal stability and the flowability are improved while the oxygen content is reduced, the problems of porcelain crackingand porcelain spalling of a cobalt chromium molybdenum alloy are effectively solved, and obtaining of dental rebuilt parts with the high quality is facilitated.

The invention relates to sulfonic acid modified carboxymethyl hydroxypropyl guar gum, and a preparation method and application thereof. The structural formula of the sulfonic acid modified carboxymethyl hydroxypropyl guar gum is shown in the specification, wherein R is H, and n is 0, 1, 2 or 3; or R is OH, and n is 0-6. The preparation method comprises the following steps: adding carboxymethyl hydroxypropyl guar gum into a reaction vessel, and adding an alcohol water solution; in a nitrogen atmosphere, dropwisely adding a sodium hydroxide water solution, heating to 65-80 DEG C while stirring, dropwisely adding a sulfonating agent, and reacting for 3-10 hours; and regulating the pH value of the solution to 7 with acid, filtering, collecting solids, and drying to obtain light yellow powder, namely the sulfonic acid modified carboxymethyl hydroxypropyl guar gum. The prepared sulfonic acid modified carboxymethyl hydroxypropyl guar gum is high in thickening efficiency, low in surface / interface tension, easy to realize viscosity break and beneficial to flowback.

The invention provides silicon dioxide-based CMP (Chemical Mechanical Polishing) solution which is applied to global planarization of a very large scale integrated circuit silicon substrate and an interlayer medium and a preparation method of the silicon dioxide-based CMP solution. The polishing solution contains the following components in percentage by weight: 10-50 percent of nano silicon dioxide grinding material, 0.1-10 percent of dispersant, 0.1-10 percent of wetting agent, 0.1-10 percent of chelating agent, 0.01-1 percent of pH (Potential of Hydrogen) regulator and the balance of de-ionized water. The polishing solution is prepared through the means of: modifying with a surfactant, strongly and mechanically stirring, performing high-shear grinding, performing ultrasonic dispersion and the like, and the problem of extreme easiness in flocculation and agglomeration of nano-scale grinding material particles is solved. Since the particle size distribution of the grinding material is narrow, the range is selectable, the polishing rate is easy to adjust and control and the polishing solution is alkaline, equipment is not corroded, less damage is caused, cleaning is easy and the environment is not polluted. The silicon dioxide-based CMP solution can be used for chemical mechanical polishing of the very large scale integrated circuit silicon substrate, the interlayer medium, a shallow trench isolation isolator, conductor and damascene metal.

The invention provides activated or inactivated compositions combining quaternary ammonium compounds and anionic surfactants or acids. The invention further provides activated or inactivated compositions combining quaternary ammonium compounds and anionic chelants or polymers. Activated antimicrobial compositions comprised of a quaternary ammonium compound having less than a C20 chain length, and an anionic carboxylate surfactant having C6-C10 chain length are disclosed. Activated compositions of the invention have a pH of between about 1 and 7 and are substantially free of silanes, sulfates and oxidants. Inactivated antimicrobial compositions comprised of a quaternary ammonium compound having less than a C-20 chain length, and an anionic sulfate or sulfonate surfactant are disclosed. Compositions of the invention have a 10 mole to 1 moles ratio of quaternary ammonium compound to anionic surfactant or about 1 mole to 10 moles ratio. Methods of making and employing the compositions are disclosed.

The invention relates to a modified vegetable oil aerial pesticide auxiliary agent, and a preparation method and application thereof, and belongs to the technical field of plant protection. The raw materials of the auxiliary agent include, by weight, 42-56 parts of modified turpentine oil, 14-20 parts of a surfactant, 10-20 parts of a wetting spreader and 10-20 parts of an anti-drifting agent. Theauxiliary agent is low in cost, and can effectively improve liquid medicine performance and droplet performance and enhance control effects. The preparation method includes dissolving the wetting spreader and the anti-drifting agent into the modified turpentine oil, and then mixing with the surfactant. The preparation method is simple and easy to operate, so that large-scale production of the auxiliary agent can be realized. The auxiliary agent can be used to mix with liquid medicine to control crop diseases through an unmanned aerial vehicle, so that liquid medicine droplet performance can be effectively improved, and aerial pesticide control effects in fields can be increased.

An image recording method includes an intermediate image-forming step of forming an intermediate image by applying an ink to an intermediate transfer body, a temperature adjusting step, and a transfer step of transferring the intermediate image onto a recording medium in this order. The ink contains polymer particles and a surfactant which is at least one selected from a compound represented by general formula (1) and a compound represented by general formula (2). In the temperature adjusting step, a temperature of the intermediate image is adjusted to a temperature higher than or equal to a minimum film-forming temperature of the polymer particles. A temperature of the intermediate image in the transfer step is lower than the minimum film-forming temperature of the polymer particles.

The invention relates to the technical field of cosmetics and particularly relates to efficiently atomized spray having a function of skin care and a preparation method thereof. The spray has small droplet diameters and a narrow droplet diameter spectrum. The droplet movement speed is slow and the liquid use amount per unit area is uniform. The spray has a good skin care effect. The spray comprises purified water, glycerol, 1, 3-butanediol, 1, 3-propanediol, 1, 2-hexanediol, 1, 2-pentanediol, betaine, allantoin, polyglyceryl-10-isostearate, PPG-26-butanol polyether-26 / PEG-40 hydrogenated castor oil / water, saccharide isomeride / water / citric acid / sodium citrate, PCA cocoyl arginine ethyl ester, caprylic / capric triglyceride, nicotinamide, purslane extract, water / hydrolyzed royal jelly protein / butanediol, water / glycerol / 1, 2-hexanediol / 1, 2-pentanediol / beta-glucan, menthol lactate / menthol, methyl diisopropyl propionamide, and octanoyl hydroxamic acid / 1, 3-propanediol. The spray is used through a spray bottle, has good atomization effects, high efficiency of deposition on the skin and has good skin care effects.