71results about How to "Good alcohol solubility" patented technology

The invention relates to a preparation method of alcohol soluble normal-temperature curing bi-component polyurethane-acrylate resin. The preparation method comprises the following steps of: preparing a substance A; preparing a substance B; and mixing the substance A and the substance B in the proportion of 3-6:1 to obtain the alcohol soluble normal-temperature curing bi-component polyurethane-acrylate resin, wherein the raw material substance A comprises acrylate, epoxy group monomer, vinylacetate or styrene, more than one type of active functional group monomer, initiating agent and industrial alcohol; and the raw material substance B comprises oligomer polyalcohol, polyisocyanate, chain extending agent, catalyst, polyamine, solvent and industrial alcohol. The alcohol is completely used as the solvent, and the alcohol solubility is favorable; compared with a bi-component polyurethane product, the components contain no toxic and dissociative isocyanate, and the obtained product has strong environmental adaptation, low requirements on moisture and interface cleaning degree, high drying speed after being coated, normal-temperature curing, good glossiness, large adjustable range of glass temperature and wide application range.

The invention discloses a method for blasting plant biomass walls with oxygen, comprising the following steps of: firstly, adding ethanol, hydrogen peroxide with concentration of 30% and water to crushed plant biomass, mixing the materials to oxidize and soak the materials, and conveying the oxidized and soaked materials to an oxygen blasting tank via a feeding port of the oxygen blasting tank; secondly, sealing the feeding port of the oxygen blasting tank, regulating the temperature of the gas in the oxygen blast tank at 80-150 DEG C and the pressure within 1-4 MPa by conveying pressure air to the oxygen blasting tank, preserving heat and keeping pressure for 20-200 seconds to soak the plant biomass into ethanol, hydrogen peroxide with concentration of 30%, steam and water; and finally, completely opening the discharge port of the oxygen blasting tank within 3 seconds to reduce the pressure in the oxygen blasting tank to the normal pressure. The invention aims to provide the method for blasting plant biomass walls with oxygen, which can be used for completely and uniformly decomposing the plant biomass and realizing industrialization production and has high production efficiency.

The invention discloses an absorbable medical suture line with good mechanical performance. The absorbable medical suture line comprises, by weight, 100-120 parts of modified polylactic acid, 20-40 parts of polyglycollide, 4-6 parts of sorbitol, 3-5 parts of methyl methacrylate and 5-6 parts of cassia oil. The preparation method of the modified polylactic acid includes: in ice-bath, adding chitosan into perchloric acid, well mixing, dripping sorbic acid chloride, stirring, cooling, preserving heat and purifying to obtain modified chitosan; taking polyethylene glycol, feeding inert gas, heating, preserving heat until the polyethylene glycol melt, adding stannous chloride and lactide, well mixing, heating, preserving heat and stirring, and purifying to obtain intermediate material; dissolving the modified chitosan in mixed solvent, adding triethylamine, well mixing, heating, refluxing, adding the intermediate material, well mixing, continuing refluxing, purifying and drying to obtain the modified polylactic acid.

A silver ion bactericide has a broad-spectrum antibacterial effect and avoids drug resistance as well as strain variation of microorganisms. Therefore, silver ions are currently an important research direction of the biomedical technology industry. According to the invention, an in-situ synthesis method is adopted for the first time to prepare a conductive conjugate polyelectrolyte/silver halide nanocomposite; and a long-acting broad-spectrum antibacterial effect is realized by adopting a silver halide nanocomposite taking the conductive conjugate polyelectrolyte as a carrier as a broad-spectrum antibacterial material and controlling the size of the silver halide nanoparticles complexed in the conductive conjugate polyelectrolyte to regulate the release rate of silver ions. In the invention, the application of the conductive conjugate polyelectrolyte in biomedicine and particularly the antibacterial field is exploited, and an antibacterial material which avoids toxic and side effects to a human body and is easy to spray and regulate and convenient to use is provided; and the antibacterial material has a broad application prospect in various conduits (catheters and air ducts), dressings and preparations as well as the long-acting mould and bacteria prevention of precise instruments.

The invention relates to a preparation method of a Chinese medicinal composition for nourishing blood, benefiting vital energy, regulating menstruation and dissipating cold. The Chinese medicinal composition is prepared by deer embryo, antler gelatin, prepared rehmannia root, ginseng, Chinese angelica, chuanxiong rhizome, bighead atractylodes rhizome, tuckahoe and liquorice. Compared with the prior art, the invention has obvious effect in the treatment, has fine production process, fast acting, increases new optional dosage form, removes the bad smell and improves the patient compliance.

The invention discloses an environment-friendly water-based coating for preparing glitter powder, and belongs to the field of fine chemical engineering. The coating consists of the following components in percentage by weight: 40-50% of alcohol-soluble acrylic resin, 15-22% of alcohol-soluble damar resin, 5-8% of a curing agent and 20-30% of an alcohol solvent. The invention also discloses a preparation method for the coating. The coating is capable of greatly improving the environmental performance by not using benzene solvents; moreover, the components are simple and synergetic with one another, so that the curing time is shortened, the adhesive force is strengthened and the total quality of the coating is improved. Compared with the traditional coatings, the cost of the coating is greatly reduced, the cost of the traditional coatings is about 25 yuan/kg and the cost of the coating is about 9.8 yuan/kg; the curing time of the traditional coatings is about 25-30s and the curing time of the coating is about 10-15s, so that the curing time is greatly shortened; the adhesive force is greatly strengthened; the preparation method is simple and the preparation cost is low.

The invention discloses an alcohol-soluble beta-glucan extract, a preparing method and application thereof and health-care wine, and relates to the technical field of extraction of plant components. The preparing method of the alcohol-soluble beta-glucan extract comprises the steps of taking a medicinal material of hordeum vulgar L.var.nudumHook.f, adding an acid solution, and conducting acid extraction; adding alpha-amylase and glucoamylase into an acid extraction solution for enzymolysis, and then conducting enzyme denaturing to obtain an enzymolysis extraction solution; centrifuging and concentrating the enzymolysis extraction solution to obtain a concentrated solution; adding an ethanol solution into the concentrated solution for alcohol precipitation to obtain an alcohol precipitationsolution; filtering and drying the alcohol precipitation solution. The technology is simple, the operation is convenient, the production period is short, the efficiency is high, and the alcohol-soluble beta-glucan extract is suitable for industrial mass production; the alcohol solublility of the prepared alcohol-soluble beta-glucan extract is good, the alcohol-soluble beta-glucan extract can be dissolved into ethanol of different concentrations and is suitable for producing hordeum vulgar L.var.nudumHook.f beta-glucan products; the alcohol-soluble beta-glucan extract is applied to preparing the health-care wine; the health-care wind contains a large amount of hordeum vulgar L.var.nudumHook.f beta-glucan.

The invention provides bio-based polyurethane water-based ink and a preparation method thereof. The preparation method comprises three steps of preparation of a prepolymer, emulsification desolvation and preparation of ink resin. The bio-based polyurethane water-based ink comprises the following components: bio-based isocyanate, bio-based macromolecular polyol, polypropylene carbonate polyol, a carboxylic acid type hydrophilic chain extender, a sulfonic acid type hydrophilic chain extender and a cross-linking agent, wherein the molar ratio of the bio-based isocyanate to the bio-based macromolecular polyol to the polypropylene carbonate polyol is 3:1:0.5-6:1:0.5, the mass of the carboxylic acid type hydrophilic chain extender is 1-2% of the mass of a polyurethane prepolymer, the mass of the sulfonic acid type hydrophilic chain extender is 2-6% of the mass of the polyurethane prepolymer, and the mass of the cross-linking agent is 1.5%-5.5% of the mass of polyurethane emulsion. According to the ink, the defect that inorganic auxiliaries such as matting powder need to be added to matte resin is overcome, the scratch resistance of the resin can be improved through the added cross-linking agent, and the alcohol solubility of the water-based ink resin is also improved through the addition of the polypropylene carbonate polyol.

The invention specifically discloses a preparation method of flower wine, which is prepared from 1-30kg of flower powder and 1000kg of wine by the following steps: (1) drying flowers at 35-90 DEG C until the water content is less than 3%, and crushing into 350-600-mesh powder to obtain the flower powder; (2) mixing the flower powder, saccharomycetes and water according to the weight ratio of 1: 0.25: 0.5, putting the mixture into a container, and fermenting at the temperature of 36-38 DEG C for 144-168 hours; (3) turning and stirring the fermentation material once every 3 hours in the fermentation process; (4) adding a proper amount of wine into the fermented material, mixing, and fermenting for 360 hours at the temperature of 18-25 DEG C; (5) stirring once every two hours in the fermentation process, wherein the stirring time is 5-8 minutes; (6) after fermentation is finished, carrying out reduced pressure distillation under the conditions that the pressure is-0.07 MPa to-0.1 MPa and the distillation temperature is 35-55 DEG C to obtain 10kg of alcohol liquid with the concentration of 15% V/V or above; and (7) adding 10kg of the alcohol liquid into 1000kg of wine, and uniformly stirring and mixing to obtain the flower wine. The wine is white spirit, yellow wine, grape wine or beer.

The present invention discloses an ionic cathode buffer layer molecule type material, wherein an aryl phosphorus oxygen group is introduced into an ammonium radical ion salt, such that the alcohol solubility and the amorphous property are high, the solubility in the weakly polar solvent can be reduced, and the erosion of the weakly polar solvent can be resisted. The present invention further discloses a preparation method and applications of the ionic cathode buffer layer molecule type material. Compared with the existing organic small molecule cathode buffer layer material, the ionic cathode buffer layer molecule type material of the present invention is used in the multilayer solution processing inversion device structure.

The invention discloses an ink suitable for tempered glass. The ink is prepared from 30-40 parts of multielement acrylate copolymer resin, 2-5 parts of polyketone resin, 3-5 parts of pigment, 1-3 parts of dispersing agent, 0.5-1 part of adhesion promoter, 0.2-0.4 part of chelator, 15-20 parts of ethanol, 1-3 parts of boron oxide, 1-3 parts of aluminum oxide, 1-3 parts of acid-resistant titanium oxide, 1-3 parts of alkali-resistant zirconium oxide, 1-3 parts of low-melting-point silicic acid, 40-50 parts of silicon rubber resin, 3-5 parts of amino resin dye, 1-4 parts of amino resin dye, 1-3 parts of amino resin dye, 50-60 parts of EVA (ethylene-vinyl acetate) resin liquid, 10-15 parts of butyl acetate, 0.2-0.5 part of defoaming agent, 2-3 parts of emulsifier and 6-10 parts of deionized water. The alcohol-soluble multielement acrylate used as the main body resin of the ink is matched with the special synthetic resins to be used for grinding the pigment, thereby enhancing the color developing property and flowability of the ink. The finally added accelerator and chelator enhance the adhesive force and heat resistance of the ink.