70results about How to "Guaranteed water solubility" patented technology

The invention belongs to the technical field of polyvinyl alcohol thin films, and discloses a blow molded water-soluble polyvinyl alcohol thin film and a preparation method and application thereof. The blow molded water-soluble polyvinyl alcohol thin film is prepared from the following components in parts by weight: 100 parts of polyvinyl alcohol resin, 30 to 50 parts of a compound plasticizer, 5to 20 parts of thermoplastic starch, 1 to 20 parts of water-soluble inorganic salt, 1 to 10 parts of water, 1 to 10 parts of a water-soluble additive, 0.05 to 2 parts of a surfactant, 0 to 0.5 part ofan antioxidant, and 0 to 0.5 part of a thermal stabilizer, wherein the compound plasticizer is a complex of glycerin, triethylene glycol, N-methyl pyrrolidone and polyhydroxy compound containing amino function groups. The blow molded water-soluble polyvinyl alcohol thin film has the advantages that the melting and extrusion blowing molding method is adopted; the preparation technology is simple,and the production efficiency is high; the air blocking property and mechanical property are better; the blow molded water-soluble polyvinyl alcohol thin film can be completely and quickly dissolved in water at normal temperature, and can be applied to water-soluble product packages of pesticides, detergents, water treatment agents and the like.

A process for preparing the glucomannan from konjak tuber includes such steps as drying, peeling, slicing, baking, pulverizing, sieving to obtain refined starch, immersing in a solvent, stirring, separating, washing and vacuum drying.

The present invention relates to a production process of a chemical additive special for papermaking, in particular to a method for preparing a liquid fluorescent brightener composition of diphenylvinyl triazine compounds. The invention mainly solves the problems of low fluorescence intensity and low brightness of a single-component liquid fluorescent brightener. The method adopts cyanuric chloride, 4,4'-diamino-2,2'-stilbenedisulfonic acid (DSD acid), aniline, monoethanolamine and 1-R1-2-R2-acrylamide as raw material, and employs four-step reaction. The inventive liquid fluorescent brightener composition has convenient usage, good acid resistance, and good storage stability at a room temperature, and is suitable for continuous adding and metering during automatic production.

The invention relates to a preparation method for extracting a fluorescent graphene quantum dot material from coffee-ground solid waste. According to the preparation method, the coffee-ground solid waste which is low in price and easy to obtain is selected as a carbon source, and a large number of water-soluble graphene quantum dots can be obtained through a simple hydrothermal process. The synthesized quantum dots can be stably dispersed in water, are light yellow under low concentration and are brown under high concentration (that is, the higher the concentration is, the darker the color is). The particle size of the obtained graphene quantum dots ranges from 3 nm to 7 nm, the surfaces of the graphene quantum dots are provided with a large number of carboxyl groups and amino groups, subsequent surface functionalization is facilitated, multi-purpose application can be brought, and meanwhile the excellent fluorescent property is exerted. The synthesized quantum dot material shows the attractive application prospect in the high and new technical fields such as environmental protection, bionanotechnology, new energy resources and nanometer devices, and the synthesizing method is simple, environmentally friendly, rapid, low in energy consumption and suitable for industry expanding.

The invention discloses a method for preparing beta-phenethyl alcohol. According to the method, acetic acid-3-butene-1-alcohol ester and 1,3-butadiene are adopted as raw materials, and the preparation of beta-phenethyl is finished by adopting Diels-Alder, hydrolysis and dehydrogenation reactions. lewis acid supported by fullerol as a carrier is adopted as the catalyst for the Diels-Alder reaction, the atom utilization rate is high, the total yield can reach 87%-95%, the purity of products can reach 99.92wt%-99.98wt%, and an oxidation reaction process and a high-pressure hydrotreatment reaction process are not adopted, so that the production process is safe and environmentally friendly.

The invention discloses a water-dispersible quick-drying low-temperature self-crosslinked acrylate resin for inks and a preparation method thereof. The water-dispersible quick-drying low-temperature self-crosslinked acrylate resin for inks is prepared by copolymerizing the following components in parts by mass: 12-20 parts of hard monomer, 12-20 parts of soft monomer, 4.5-10 parts of first-type hydrophilic monomer, 0.5-2.5 parts of second-type hydrophilic monomer, 0.6-2 parts of crosslinkable monomer, 0.3-0.6 part of initiator and 50-70 parts of solvent. A pH regulator is added to regulate the pH value to 7-8; and 30-60 parts of water is added as a dispersing agent. The ink prepared by using the water-dispersible acrylate resin as the connecting material can implement low-temperature (<50 DEG C) crosslinking curing, and has the advantages of short drying and curing time (the surface drying time is 25-50 seconds), excellent adhesive force (Grade 0) on low-polarity materials (PE (polyethylene) and PP (polypropylene) films), favorable staining power, favorable bonding resistance, favorable water resistance and favorable solvent resistance.

The present invention discloses a high water-solubility precursor medicine, its preparation method and application in pharmaceutical technology. Said invention provides a general formula accorded with said precursor medicine. Said precursor medicine can be made up by using parent medicine and organic aid and making them undergo a certain reaction process. Said invention also provides the concrete steps of its preparation method, and said precursor medicine can be used for preparing several medicines, and has the advantages of high water-solubility, good effect and lower toxic side-effect.

The invention discloses a preparation method and application of an amido carboxylic acid compound. The preparation method comprises the step of subjecting organic carboxylic acid with a structure represented by a formula (I) shown in the description and an amino acid compound with a structure represented by a formula (II) shown in the description to a grinding reaction in the presence of a coupling reagent, thereby preparing the amido carboxylic acid compound with a structure represented by a formula (III) shown in the description. The product prepared by the method is high in yield, is energy-saving and environmentally friendly and does not need aftertreatment. According to the application, the amido carboxylic acid compound is applied to mineral flotation separation as a collector, and the collector has relatively high collection capability and relatively good selectivity and is particularly applicable to the flotation separation of minerals such as wolframite, scheelite, rare earthminerals, cassiterite, ilmenite, bauxite, manganese oxide ores, phosphorite and fluorite.

The invention provides an acrylamide copolymer, as well as a preparation method and an application thereof. The copolymer comprises a structural unit A, a structural unit B and a structural unit C, wherein the structural unit A is a unit having a structure as shown in a formula (1), the structural unit B is at least one unit having a structure as shown in formulae from (2) to (5), and the structural unit C is a unit having a structure as shown in a formula (6); the mass ratio of the structural unit A to structural unit B to structural unit C is 1:(0.001-3):(0.001-0.5); and the viscosity-average molecular weight of the acrylamide copolymer is 30-35 millions. A temperature-endurance salt-resistance product of the acrylamide copolymer has the characteristic of high molecular weight; and the acrylamide copolymer has an advantage of greatly thickening, and can be used as an oil-displacing agent for tertiary recovery of a high temperature and high salinity reservoir.

The invention relates to the field of water-soluble fertilizers, and discloses a preparation method of a water-soluble humic acid fertilizer. The preparation method comprises the following steps of: (1) adding mineral source humic acid and a hydrogen peroxide solution into a colloid mill, and introducing ozone for grinding to obtain oxidized mineral source humic acid; (2) continuously adding a potassium hydroxide solution into the colloid mill for grinding to prepare activated mineral source humic acid; (3) adding citric acid, sodium carboxymethyl cellulose and water into the colloid mill forgrinding, and performing filtering to obtain a colloid humic acid mixed solution; and (4) adding the colloidal humic acid mixed solution into monoammonium phosphate, potassium dihydrogen phosphate, potassium sulfate, magnesium nitrate, urea, trace elements and water, performing stirring and dissolving, conducting filtering and concentrating under reduced pressure, and carrying out spray drying toobtain the water-soluble humic acid fertilizer. According to the method disclosed by the invention, humic acid is oxidized and activated in a high-shear colloid mill to form colloid, and indissolvableand insoluble substances are removed in a manner of filtering twice and concentrating once, so that the humic acid fertilizer with good water solubility is obtained.

The invention discloses a waterproof breathable water-soluble protective material, and relates to the technical field of protective products. The waterproof breathable water-soluble protective material comprises a water-soluble spunbond base material and a hydrophobic coating, or the waterproof breathable water-soluble protective material comprises the water-soluble spunbond base material, the hydrophobic coating and a barrier layer, the raw material of the water-soluble spunbond base material is selected from at least one of polyvinyl alcohol, water-soluble cellulose, polyethylene glycol and water-soluble chitosan, the hydrophobic coating is selected from at least one of a fluorine/silicon resin material, alkoxy silane and an inorganic nano material; and the barrier layer is selected from at least one of a water-soluble melt-blown non-woven fabric, a water-soluble centrifugal spinning non-woven fabric, a water-soluble swelling non-woven fabric and a water-soluble electrostatic spinning non-woven fabric. The waterproof breathable water-soluble protective material is high in barrier efficiency and good in air permeability, and can effectively solve the problem that the protective performance and the air permeability of the existing water-soluble protective material cannot be achieved at the same time.

The invention discloses water-soluble unsaturated polyester. The water-soluble unsaturated polyester is mainly prepared from the following raw materials: monosodium 5-sulfoisophthalate, a raw materialA, a raw material B, a raw material C, a raw material D, a raw material E, glycidyl methacrylate, a catalyst and a polymerization inhibitor, wherein the raw material A is saturated diol with steric hindrance effect; the raw material B is beta-olefinic unsaturated dicarboxylic acid and/or anhydride thereof; the raw material C is saturated polyol with three components or more; the raw material D isC4-C8 saturated diol except the raw material A; and the raw material E is C2-C12 aliphatic diacid. The invention also discloses a preparation method for the water-soluble unsaturated polyester, an aqueous dispersion containing the water-soluble unsaturated polyester, a photoinitiator stabilizing emulsion, a photocurable composition and a photocurable paint.

The invention discloses a preparation method of a water-resistant adhesive for processing a corrugated paperboard, and relates to the technical field of adhesives. The preparation method includes thesteps: (1) polyglutamic acid modification; (2) filler preparation; (3) adhesive preparation. In the modification process of polyglutamic acid, double bonds are introduced to a polyglutamic acid structure by esterification reaction of N-hydroxymethyl acrylamide and the polyglutamic acid, acrylamide copolymers are introduced to the polyglutamic acid structure by polymerization reaction of the N-hydroxymethyl acrylamide and diacetone acrylamide, the adhesive performance of the polyglutamic acid is enhanced, and the water resistance of the adhesive is improved by adding adhesive auxiliaries and modifying 4A molecular sieve activation powder.

A water-soluble povidone-iodine powder preparation, characterized in that it comprises the following parts by weight: 200-300 parts of povidone-iodine, 10-15 parts of potassium iodide, 10-20 parts of potassium iodate, and 5-10 parts of glycerin parts, 10-15 parts of antioxidant, 10-20 parts of pH stabilizer; the available iodine weight percentage content of the povidone-iodine is greater than or equal to 14.0%, the antioxidant is a water-soluble antioxidant, and the pH stabilizer It is potassium dihydrogen phosphate; the particle size of the powder preparation is greater than 200 mesh. The preparation method comprises the steps of dissolving the above-mentioned components in water and stirring uniformly to obtain a povidone-iodine aqueous solution; adding it to a freeze dryer to freeze-dry to obtain povidone-iodine powder, and passing through a 200-mesh sieve to obtain a finished povidone-iodine powder preparation. The homemade povidone iodine is used as raw material, mixed with auxiliary materials and then freeze-dried to obtain a powder preparation. Water is used as a solvent to avoid the residue of organic solvents, and at the same time ensure the water solubility of the prepared powder preparation; the freeze-drying process ensures the powder preparation stability.

The invention discloses a face cream production system, which mainly comprises a high speed crushing machine, stirring separation equipment, a multi-stage filtering device, a dewatering device, fine grinding equipment, water phase processing equipment, oil phase processing equipment and three-phase mixing stirring equipment, wherein the high-speed crushing machine, the stirring separation equipment, the multi-stage filtering device, the dewatering device and the fine grinding equipment are sequentially communicated through a connection pipe; the fine grinding equipment, the water phase processing equipment and the oil phase processing equipment are respectively communicated with the three-phase mixing stirring equipment through connection pipes. Compared with the prior art, the face creamproduction system has the advantages that through the standard operation, plant extraction liquid is subjected to water bath separation, dewatering and grinding; the water solubility is ensured; meanwhile, the particle size is reduced; the water, oil and powder three-phase mixing stirring is provided; the face cream smearing comfort degree is greatly improved; the plant essence can be more easilyattached onto the surface of the skin and can be absorbed by the skin at the same time. Through the implantation and the application of a mechanical production line, the production scale, the specification and the production quantity of the face cream are greatly improved.

The invention discloses a water soluble xanthophyll preparation technology. The technology comprises the following steps: adding marigold oil into a saponification tank, adding an alcohol compound into the saponification tank, heating until the temperature in the saponification tank rises to 75-90DEG C, continuously adding a strong alkaline solution into the saponification tank in a dropwise manner, and fully reacting to obtain nanometer xanthophyll crystals; diluting the nanometer xanthophyll crystals 2-8 times by 70-95DEG C deionized water, and adjusting the pH value to 4-7 by using an acid to obtain a diluted solution; and adding an organic solvent into the diluted solution according to a weight ratio of 1:1-1:3, and extracting 2-5 times to obtain purified xanthophylls. The marigold oil is processed through a special saponification technique to obtain the nanometer xanthophyll crystals, so the technology improves the quality of xanthophyll and increases the production yield of xanthophylls.

The present invention discloses a preparation method of ginger oleoresin microcapsules used for processing of fine dried noodle seasoning materials and relates to the technical field of microcapsules.Polyglutamic acid-poloxamer is used as a wall material to replace already reported maltodextrin, soybean proteins, gelatin and casein, and an embedding rate of the wall material to core material ginger oleoresin is improved based on consumption safety. At the same time, water solubility of the prepared ginger oleoresin microcapsules is ensured, so that the ginger oleoresin microcapsules are completely dissolved in water in use to release contained fragrance and taste of the ginger oleoresin.

The invention relates to a method for demulsifying oil-in-water emulsion. The method comprises the following steps: 1) carrying out an aldimine condensation reaction on lauric aldehyde and hyperbranched polyethyleneimine, and performing reductive amination to obtain amphipathic hyperbranched polyethyleneimine modifier, wherein a feed ratio of the lauric aldehyde to hyperbranched polyethyleneimineis (1-6ml):(2-6g); the core of the amphipathic hyperbranched polyethyleneimine modifier is hyperbranched polyethyleneimine with strong hydrophilic property, and the shell is composed of oleophilic dodecyl and hydrophilic amino; and 2) dispersing the amphipathic hyperbranched polyethyleneimine modifier into the oil-in-water emulsion for demulsifying. According to the method, the oil content of an aqueous phase of the oil-in-water emulsion is less than 5% in a short time, the moisture content of an oil phase can be reduced to 0.1% or less, the residual emulsion layer is extremely thin even disappears, and a clear oil-water interface is formed.

The invention discloses a polygonatum kingianum solid beverage assisting in decreasing blood sugar. The polygonatum kingianum solid beverage assisting in decreasing the blood sugar is prepared from the following components in parts by mass: 55.00-75.50 parts of polygonatum kingianum aqueous extract, 27.00-38.00 parts of polygonatum kingianum polysaccharide, 0.60-4.00 parts of stevioside, 1.30-12.00 parts of citric acid and 0.40-0.80 part of magnesium carbonate. The invention further discloses a preparation method of the solid beverage. The preparation method of the solid beverage comprises thesteps of preparing, weighing, mixing and granulating of the polygonatum kingianum aqueous extract and the polygonatum kingianum polysaccharide and the like. The main active ingredient, the polygonatum kingianum aqueous extract, has antioxidant activity and alpha-glucosidase inhibition, the polygonatum kingianum polysaccharide can reduce fasting a blood glucose level of streptozotocin-induced diabetic mice and relieve the symptoms of "drink more, eat more, urinate more and weight loss" in the diabetic mice. The solid beverage is reasonable in formula, has a better effect in assisting in decreasing the blood sugar, is easy to carry and store, and all quality indexes meet the requirements of standards and specifications such as "solid beverage".

The invention provides waterborne alkyd enamel paint and a preparation method thereof. The waterborne alkyd enamel paint mainly comprises, by weight, 18-45 parts of waterborne alkyd resin, 2.1-8.3 parts of waterborne auxiliaries, 1.9-6.5 parts of pigment, 5-10 parts of fillers and 5-70 parts of water. The waterborne alkyd enamel paint takes water to serve as a thinning agent, different types of waterborne alkyd resin is reasonably blended, the waterborne auxiliaries and the fillers serve as scientific components and are added, the raw materials are mixed, so that high-molecular linear polymers are cross-linked into a meshed macromolecular structure, anti-rusting properties, water tolerance and mechanical properties of the waterborne alkyd enamel paint are improved, the waterborne alkyd enamel paint is low in odor, organic solvents such as benzene and dimethyl benzene are omitted, hazards on human health are avoided, organic matters are less in volatilization in the construction process, and potential safety hazards such as fire disasters are avoided.

The present invention discloses a mulberry leaf black tea solid beverage preparation method and processing equipment. The mulberry leaf black tea solid beverage preparation method mainly comprises the following processing steps of freeze drying, mechanical crushing, constant temperature extraction, low temperature concentration, secondary freeze drying, blending and mixing, wet granulation, and drying and packaging. The processing equipment comprises a processing box, a plurality of supports are fixed to the bottom of the processing box, a plurality of feeding barrels are fixed to the upper end of the processing box, a plurality of feeding openings correspondingly communicating with the feeding barrels are formed in the top of the processing box in a penetrating mode, and a plurality of pre-grinding mechanisms are arranged at the inner top of the processing box. The mulberry leaf black tea solid beverage preparation method has the advantages that the prepared mulberry leaf black tea solid beverage is good in taste, good in resolubility, small in size, convenient to carry, instant to drink and capable of being drunk after being brewed with warm water, the condition restriction problem that mulberry leaf black tea can be drunk after being brewed with hot water is solved, and the mulberry leaf black tea solid beverage can serve as an auxiliary hypoglycemic dietary therapy product to be used for daily postprandial blood sugar control of diabetics.

The invention discloses a near infrared fluorescent polymer probe for recognizing hydrazine as well as a preparation method and application thereof, and in particular discloses the near infrared fluorescent polymer probe of a structure as shown in a formula I. The polymer probe is prepared by carrying out a chemical reaction on near infrared fluorescent molecules and biocompatible chitosan, wherein the near infrared fluorescent molecules, as a near infrared fluorescent response unit, can react with hydrazine to emit red light so as to achieve specific response to hydrazine. Chitosan, as a mainchain composition unit of the polymer, endows the polymer with good water solubility and biocompatibility. The near infrared fluorescent polymer probe provided by the invention can be used for hydrazine detection and imaging in an aqueous solution, living cells and a living body, and has an important application prospect in the fields of environment monitoring, bioimaging and sensing. The formulaI is as shown in the description.

The invention provides water-based epoxy zinc-rich lacquer and painting method thereof. The lacquer includes by weight, 8-15 parts of water-borne epoxy resin, 50.2-71.5 parts of zinc powder mixture, 10-30 parts of curing agent, and 3-15 parts of additive. The product has excellent anti-corrosion property, good mechanical property, and strong adhesive ability. The product has electrical conductivity and protection function for cathode. The product can be used as base coat for storage tank, container, steel structure, steel pipe, ocean platform, vessel, sea port facilities and for harsh and anti-corrosion environment. The product is excellent in property and has broad applications.

The invention discloses a water-soluble ink for embroidery. The water-soluble ink comprises 8-15% of ink, 20-30% of an emulsifier, 20-26% of nanometer titanium dioxide, 0.1-0.5% of an antifoaming agent, 3-8% of butanol etherized melamine resin, 3-5% of a polyol polymer, 30-40% of stearylamine polyoxyethylene ether, 1-3% of an additive, and the balance of water, the polyol polymer is organic filled polyether, the additive comprises, by mass, 10% of ammonia water and 3-5% of glycerin, and the antifoaming agent is an aqueous antifoaming agent. The water-soluble ink for embroidery prepared in the above mode has the characteristics of water solubility, easy cleaning, simple preparation and stable performances.