92results about How to "Good solubility and dispersibility" patented technology

The invention provides a regulation and preparation method and application of multicolor fluorescent carbon dots. The preparation method of the fluorescent carbon dots comprises the steps that p-phenylenediamine with the certain mass is dissolved into secondary water, and subjected to ultrasonic blending, or ultrasonic blending is conducted after pH value of the solution is conditioned; the solution is transferred into a hydrothermal reaction still and reacts for 8-10 h at the temperature of 200-220 DEG C, the product is cooled to be at the room temperature and centrifugalized, the supernatantliquid is taken and subjected to dialysis treatment, and a pure carbon dot water solution is obtained; and the carbon dot water solution is freeze-dried, and the different fluorescence emitting carbon dots are obtained. The operation steps are simple, and the raw material does not need to be treated or modified through a surface passivation agent. The obtained carbon dots have the good solubilityand dispersibility in the water solution. The prepared carbon dot quantum yield is high, taking rhodamine B (the quantum yield in ethyl alcohol is 89%) as the reference substance, the quantum yield of the prepared carbon dots is usually between 7.4% and 13.6%, and the prepared fluorescent carbon dots can be applied to removal of free radicals and cell imaging.

Disclosed are a composite collector for low-and-medium-temperature phosphate flotation and a preparation method thereof. The composite collector is composed of 100 parts of carboxylic acid collector, 50-100 parts of hydrocarbon type oil, 1-10 parts of non-ionic surface active agent, 1-10 parts of anionic surface active agent and 80-200 parts of water, wherein the carboxylic acid collector serves as the main collector, the hydrocarbon type oil serves as the auxiliary collector, the non-ionic surface active agent serves as the synergist, and the anionic surface active agent serves as the emulsifier. The preparation method includes steps of uniformly mixing and stirring the components according to the proportion in the speed of 300-1500rad/min at the temperature ranging from 40DEG C to 80 DEG C to obtain the composite collector for low-and-medium temperature phosphate flotation. When in use of the composite collector, the composite collector is added into a pulp mixing barrel to be mixed with pulp sufficiently according to dosage directly, so that floatation can be carried out in a floatation trough at the normal temperature and the operation of heating to pulp is omitted. The composite collector has the advantages that better low-and-medium-temperature flotation effect can be achieved, bubbles generated by the composite collector are favorable for concentrate deposition, the chemical agent usage is small, raw materials for the composite collector are wide in sources, and the composite collector is moderate in price.

The invention discloses a clean fracturing fluid which comprises crude rubber fluid, viscosity accelerant and gel breaker, the crude rubber fluid comprises the following materials by mass percent: 0.1%-0.5% of hydrophobic association polyacrylamide, 0.05%-0.2% of organic acid, 0.1%-0.8% of clay stabilizer and the balance of water; the viscosity accelerant comprises the following materials according to mass percent: 0.05%-0.4% of alkyl amine oxide, 0.1%-0.5% of Gemini surfactant, 0.1%-1.0% of alkyl lower alcohol, 0.05%-0.4% of pH regulator, and the balance of water; the volume ratio of the crude rubber fluid to the viscosity accelerant is 100:(5-10), and the mass of the gel breaker is 0.005%-0.05% that of the clean fracturing fluid. The invention further provides a preparation method of the clean fracturing fluid. The long-term technical problems of high cost and poor temperature resistance performance of the clean fracturing fluid are solved.

The invention relates to the technical field of food processing, and especially relates to essence oil microcapsules and a preparation method thereof. The essence oil microcapsules are composed of the following materials: wall materials, a first emulsifier, a stabilizer, and buffer salt. The core of the essence oil microcapsules is composed of the following materials: core materials, and a second emulsifier. The wall materials are composed of the following components: a component A and a component B; the component A is maltodextrin and/or malt syrup; and the component B is whey protein isolate and/or soy protein isolate. The preparation method of the essence oil microcapsules is capable of obviously raising the oil contents of the essence oil microcapsules; and the oil contents of the prepared essence oil microcapsules can be up to 23-35% while the embedding rates are 90% or higher. The preparation method is simple in technology, and low in cost; moreover, the preparation conditions can be easily controlled. The prepared essence oil microcapsule products have good stability, as well as good solubility and dispersion performance. Thus, the essence oil microcapsules can be widely applied in the industries, including the health-care product industry, the pharmaceutical industry, and so on.

The invention provides a method for determining the content of water in a sample in a process of preparing a composite solid propellant. The content of the water in the sample is measured by adopting a Karl-Fischer moisture meter; when a sample solution is prepared, the sample is dissolved and dispersed by adopting trichloromethane; when the content of the water in the sample is determined, the sample solution is further dispersed by a titration solvent of methyl alcohol and trichloromethane without causing agglomeration, thus the sample feeding problem is solved; a reagent for dissolving and dispersing the sample does not react with a Karl-Fischer reagent or the reaction between the reagent and the Karl-Fischer reagent is interfered. According to the method, the content of the water is determined, the water in the sample can be rapidly determined, the determination time can be controlled to be within 20 min, a testing result is accurate, online detection can be realized, and excellent popularization and application values are achieved.

The invention discloses an environment-friendly water-based cleaning agent for printed circuit boards. The environment-friendly water-based cleaning agent is composed of, by weight, 45-50% of alcohol ether, 20-25% of a solubilizer, 1-2% of alkylamine, 1-2% of a gemini surfactant and 21-32% of deionized water, wherein the sum of the weight percentages is 100%. The environment-friendly water-based cleaning agent is effective in cleaning of residual flux, metal ions, granular pollutants, nonpolar and polar residues and the like on surfaces of the printed circuit boards and is free of phosphorus containing compounds, toxicity and corrosion, safety, environment friendly and extensive in application range.

The invention relates to a compound adjustment method of petroleum sulfonate, which provides a petroleum sulfonate compounded system for oil displacement, which ensures that lamination does not occur when a product is laid within 30 days at normal temperature and a preparation method of the petroleum sulfonate compounded system. The system takes petroleum distillate oil as raw material, takes gaseous sulfur trioxide, liquid sulfur trioxide or fuming sulfuric acid as sulfonating agent, takes petroleum sulfonate, the active matter content of which is larger than 28 percent, formed by neutralizing ammonia or sodium hydroxide as a base, and is formed by adding dodecyl benzene sulfonic acid, heavy alkyl benzene sulfonic acid, alpha-olefin sulfonic acid, alkali or water. The system comprises the following components by mass: 40 to 90 percent of petroleum sulfonate, 0 to 20 percent of dodecyl benzene sulfonic acid, 0 to 20 percent of heavy alkyl benzene sulfonic acid, 0 to 10 percent of alpha-olefin sulfoacid, 0 to 30 percent of alkali and 0 to 40 percent of water. By adopting the technical scheme, the adaptability of petroleum sulfonate products in an oil field is improved, the product stabilizing capacity is enhanced, and the production process of the petroleum sulfonate is simplified.

The invention relates to an emulsion type crude oil viscosity-reduction drag reduction agent applied to high-wax-content pure oil pipe transportation. The emulsion type crude oil viscosity-reduction drag reduction agent mainly solves the problems that in the prior art, wax crystallization of a pipe network exists and wax asphaltene deposition of a pipe wall are serious in winter, and consequently the pipe transportation capability is greatly lowered, and safety transportation of crude oil is affected by return pressure rising. The emulsion type crude oil viscosity reduction and drag reduction agent is prepared from, by weight, 20-30% of macromolecule terpolymer, 20-35% of polyolefin drag reduction agent, 20-40% of higher alcohol, 5-10% of compound emulsifier and 1-5% of emulsion stabilizer. The emulsion type crude oil viscosity-reduction drag reduction agent can be rapidly dissolved into crude oil, so that the viscosity of the crude oil is reduced, the friction resistance of the crude oil is reduced, return pressure is reduced, and the pipe transportation capability is improved.

A thiophene compound having sulfonyl groups which is represented by the formula [1]. It has high heat resistance and high unsusceptibility to oxidation and can improve solubility and dispersibility in various solvents.

[In the formula, R¹ and R² each independently represents hydrogen, halogeno, cyano, etc.; and R³ and R^3′ each independently represents C_1-20 alkyl, C_1-20 haloalkyl, phenyl optionally substituted by W, thienyl optionally substituted by W, etc. (W represents chlorine, etc.).]

The invention relates to a photocuring nano hybrid material with photocuring reactive groups, and preparation and application thereof. Siloxane with photocuring reactive groups (also called photosensitive groups) is subjected to hydrolytic polycondensation under proper conditions to obtain the photocuring nano hybrid material with photocuring reactive groups. The photocuring nano hybrid material contains abundant photocuring reactive groups, has favorable solubility and dispersity, can effectively improve the curability of the photocuring paint, and can also effectively improve the mechanical properties of the photocuring paint.

The invention relates to a metal antirust compound containing oil-soluble polyaniline and application thereof. The invention is characterized in that the antirust compound comprises, expressed in mass percentages, 5 to 30% of oil-soluble polyaniline, 10 to 40% of dodecenylsuccinic acid and 40 to 80% of barium petroleum sulfonate. When the antirust compound provided by the invention is added into a lubricant base oil or/and mineral spirit, the antirust compound has good dissolvability and realizes phase-free separation, a solution system is uniform and stable, a lubricant anti-rust oil, or a solvent dilution type anti-rust oil not containing a film forming agent or a hard-film anti-rust oil can be prepared, and the formed anti-rust oils have the advantages of a small total addition amount, low viscosity and a good antirust effect, in particular, protruding salt mist prevention performance; when the total addition amount of the antirust compound is within 9%, antirust periods of the prepared lubricant anti-rust oil, the solvent dilution type anti-rust oil not containing a film forming agent and the hard-film anti-rust oil under a salt mist condition are greater than 6 d, greater than 11 d and greater than 31 d, respectively, and antirust periods the above-mentioned anti-rust oils under damp and hot conditions are all greater than 60 d.

The invention discloses a plant leaf fertilizer. The plant leaf fertilizer is prepared by the following components in percentage by weight: 12-15% of tea saponin powder, 45-50% of potassium citrate, 35-40% of industrial zinc sulphate, and 0.8-1.3% of ammonium molybdate. The plant leaf fertilizer disclosed by the invention has the advantages of good solubility and dispersibility, low cost, strong pertinence and good application effect.

The invention belongs to the field of metal mineral separation and provides a combined collecting agent for improving production index of carbonous gold ore and application of the combined collectingagent in floatation of carbonous gold ore thereof. The combined collecting agent comprises, by weight, 3-6 parts of a collecting agent J-622, 2-3 parts of ammonium dibutyl dithiophosphate, 0.5-1 partof kerosene and 0.5-1 part of octaphenyl polyoxyethyiene (OP)-10. The floatation comprises the steps that ore grinding is conducted first; sodium hydroxide as a regulator and MFA as a water purifyingagent are added, and size mixing is conducted; an activator and a collecting agent are added, rapid floatation is conducted, and concentrated gold ore 1 and roughing tailings are acquired; regrindingis conducted on the roughing tailings, and the water purifying agent, MFA, is added when regrinding is conducted; and then floatation is conducted, and concentrated gold ore 2 and tailings are acquired. The concentrated gold ore 1 and the concentrated gold ore 2 serve as qualified concentrated gold ore products. According to the combined collecting agent, the aid-dispersion mechanism is utilized;dissolution dispersity of medicament in an ore pulp is increased; consumption of the collecting agent is reduced by a large margin; collecting capacity of gold is improved greatly; the cost of medicament is lowered; and economic benefits of enterprise production is improved.

The invention discloses a 2,4-D dimethylamine salt soluble granule which comprises the following components in percentage by weight: 10-98 percent of 2,4-D dimethylamine, 0.1-15 percent of an adhesive, 0.1-5 percent of a synergist and the balance being filler. A preparation method for the 2,4-D dimethylamine salt soluble granule comprises the following steps of mixing 10-98 percent of the 2,4-D dimethylamine, 0.1-15 percent of the adhesive, 0.1-5 percent of the synergist and the residual filler for granulation, and drying granulated granules. The preparation method is reliable; the obtained 2,4-D dimethylamine salt soluble granule is high in particle strength and high in dissolve dispersion performance; compared with a 2,4-D dimethylamine salt water agent, the 2,4-D dimethylamine salt soluble granule has the advantages of convenience in use and transportation and safety and stability in storage.

The invention discloses a rust-proof cleaning agent and an application thereof to hardware products. The rust-proof cleaning agent comprises a compound builder, a compound anti-rust agent, a surfactant, a sterilizing preservative, a defoaming agent, water and the like. The rust-proof cleaning agent has good lubricating, permeating, emulsifying and dispersing functions and has a washing performancefor animal and plant oil and mineral oil, the cleaning agent can be blended and diluted by deionized water according to rust-proof cleaning process requirements, and the technical requirement of enterprises for cleanliness quality of various universal mechanical parts and hardware products in the manufacturing process. The rust-proof cleaning agent cannot corrode equipment and workpieces in the use process, cannot foam or combust, is free from unpleasant pungent odor, strong in microbial reproduction resistance, long in use cycle and not easy to stink and deteriorate, and the products cleanedby a joint cleaning device are free from rusting after being suspended and exposed in inter-processes for more than 7 days.

The invention relates to an antibacterial lubricant and a preparation method thereof. The antibacterial lubricant comprises the following raw materials in parts by weight: 36-40 parts of tea oil, 12-14 parts of polydimethylsiloxane, 24-30 parts of cellulose ether, 12-15 parts of graphite, 20-30 parts of glycerin monostearate, 5-8 parts of dilinoyl palmitoyl glyceride, 15-26 parts of polyacrylamide, 20-24 parts of polyethylene glycol and 30-34 parts of glycerol. By means of reasonably compounding the tea oil and other additives, the lubricating performance of the lubricant is effectively improved. Meanwhile, since glycerin monostearate and polyethylene glycol are mixed to achieve good dissolving dispersibility to other additives, the lubricating performance of the lubricant is effectively improved.

The invention discloses a preparation method of an oleic acid-lanthanum trifluoride-graphene compounded lubricating oil antiwear agent, belonging to the technical field of lubricating oil. The preparation method comprises the following steps: firstly adding ammonium fluoride and graphene oxide into an ethanol aqueous solution, then adding a lanthanum nitrate solution drop by drop therein under a condition of 60 to 100 DEG C for 2.5 to 3.5h, then adding 120ml of saturated ethanol solution, which contains 4ml of oleic acid, then filtrating 3h later, washing repeatedly by using deionized water and ethanol, and finally drying at 80 DEG C for 12h to obtain the oleic acid-lanthanum trifluoride-graphene compounded lubricating oil antiwear agent. The lubricating oil antiwear agent disclosed by the invention has excellent heat stability and chemical stability, and can prevent oxidation and reaction with metal and the like in hot environment; meanwhile, the lubricating oil has the advantages of being more excellent in stability, lubricating property, oxidation resistance, wear-resisting and anti-friction performance and the like; and the antiwear agent can be widely applied to various mechanical antifriction and wear-resistant fields such as vehicles, boats, tracks and the like.

The invention discloses cuminum cyminum water-solubility essential oil and a preparation method thereof, as well as application of the essential oil to processing of textured soybean protein products, wherein the preparation method of the cuminum cyminum water-solubility essential oil comprises the following steps: (1), performing supercritical extraction to prepare cuminum cyminum essential oil; (2), preparing the cuminum cyminum water-solubility essential oil by emulsification of soybean phospholipids. A method for processing the textured soybean protein products comprises the following steps: uniformly mixing bean pulp, vital gluten, protein isolate and bean dregs, extruding through double screw rods, marinating, adding cuminum cyminum water-solubility essential oil to season, packing and sterilizing, so as to obtain the textured soybean protein products. The invention has the beneficial effects: (1), the extraction rate of the cuminum cyminum essential oil is up to 96%, so that the costs of raw materials are reduced; (2), the cuminum cyminum water-solubility essential oil is high in edible safety and dissolution dispersity; when the cuminum cyminum water-solubility essential oil is added during processing of the textured soybean protein products, not only are product flavors distributed uniformly and deeply, but also later-period re-seasoning working procedures are reduced; (3), the content of diet fibers in the textured soybean protein products is up to 6%.

The invention discloses a real silk dry cleaning agent. The real silk dry cleaning agent comprises the following components in parts by weight: 70-99 parts of deionized water, 0.1-3 parts of a novel environmentally-friendly dispersant, 0.1-2 parts of a wetting agent, 1-5 parts of a solubilizing agent, 0.05-2 parts of a green chelating agent, 1-5 parts of an auxiliary agent and 0.02-0.5 part of a preservative, wherein, the novel environmentally-friendly dispersant is N-dimethyl enamine. According to the real silk dry cleaning agent disclosed by the invention, the original expensive and complicated cleaning mode is broken through; the simple, rapid and effective removal of local stains is realized; meanwhile, the original quality and appearance of the real silk fabric are protected; and theproduct is green and environmentally-friendly, biodegradable and suitable for civilian use.

The invention discloses a carbon dot capable of emitting yellow fluorescence as well as a preparation method and application of the carbon dot. The carbon dot is a yellow fluorescent carbon dot prepared from ethylene glycol-bis(2-aminoethylether)tetraacetic acid (EGTA) and p-phenylenediamine as raw materials through a one-step hydrothermal method. The preparation method of the carbon dot is simpleand convenient, and the prepared carbon dot has extremely small size, good water solubility and excellent light stability. Due to the unique surface structure of the carbon dot, tetracycline antibiotics can be rapidly and sensitively detected in a label-free manner by taking the carbon dot as a fluorescent probe. When the tetracycline antibiotics exist, fluorescence of the carbon dot is effectively quenched by the tetracycline antibiotics, and the content of the tetracycline antibiotics in a sample can be detected according to the change degree of the fluorescence. Compared with a traditionalmethod, a method for detecting the tetracycline antibiotics in the invention is simple, convenient and rapid, does not need additional modification markers, can directly detect samples, and has moreadvantages in practical application.

The problems that zein is easy to aggregate in water, poor in solubility, low in lutein loading efficiency, poor in dissolution controlled release effect and the like are solved. The preparation method of the glycosylated corn protein polypeptide carrying xanthophyll nanoparticles comprises the following steps: 1, carrying out enzyme hydrolysis on zein to obtain corn protein polypeptide with specific molecular weight; 2, preparing a corn protein hydrolyzed polypeptide subjected to glycosylation modification; and 3, preparing the high-load xanthophyll nanoparticles by taking the glycosylated corn peptide as a carrier. The invention has the advantages that: 1, the carrying and controlled release performance of the corn protein on the xanthophyll is improved; 2, the structural stability and digestion release property of the xanthophyll are improved; and thirdly, the nutrition safety is high, and the nutritional value of the fat-soluble lutein component can be improved. The preparation method of the modified corn polypeptide-xanthophyll nanoparticles has the advantages of high embedding efficiency on active ingredients such as fat-soluble xanthophyll, good dissolution dispersibility and strong nutrition functionality.