135results about How to "Dispersion system is stable" patented technology

The invention discloses an aqueous heat dissipation coating and a preparation method thereof. The aqueous heat dissipation coating comprises an aqueous dispersoid containing a base resin, nanometer carbon material-coated boron nitride composite powder and optional auxiliary materials. The composite powder comprises boron nitride and a boron nitride-coating nanometer carbon material. The preparation method comprises carrying out grinding dispersion on the aqueous dispersoid containing a base resin and the optional auxiliary materials to obtain dispersive slurry, at least adding slowly the composite powder into the dispersive slurry, carrying out high speed stirring and carrying out standing defoaming. The nanometer carbon material-coated boron nitride composite powder is used as a coating filler so that excellent thermal conductivity of the nanometer carbon material and boron nitride and conductive infrared radiation characteristics of the nanometer carbon material are fully utilized, interface thermal resistance of the nanometer carbon material and boron nitride is reduced, and the coating has the advantages of high thermal conductivity, high infrared radiation rate, construction convenience, safety, environmental friendliness and wide application prospect.

The invention discloses a graphene-modified anti-wear water-based glass coating, which comprises a first component and a second component, wherein the first component is a base film forming agent and comprises 20-40% of modified epoxy resin, 0.5-7% of additive, 0.1-5% of graphene, 1-2% of coupling agent and the balance of water in percentage by weight; the second component is an amine curing agent; the first component is mixed with the second component in the using process; and the weight percentage of the second component in a mixture is 3-30%. The coating has the characteristics of high hardness, good wear resistance, high affinity and adhesion with a glass base, water resistance, good ethanol resistance and the like, and meets the green environment-friendly development trend and requirement. In addition, the coating is simple to prepare and convenient to use, and has an important commercial application value.

The invention discloses a preparation method of an ester type viscosity reduction type polycarboxylate superplasticizer. The method comprises the following steps: (1) preparing an esterified monomer; (2) conducting the copolymerization reaction; (3) conducting the neutralization reaction. According to the technical scheme of the preparation method, methyl methacrylate and dimethylaminoethanol, remaining after the preparation of the esterified monomer, are subjected to ester exchange in the same condition of preparing the esterified monomer so as to obtain dimethylaminoethyl methacrylate as a functional monomer. Therefore, the preparation method is cost-saving and simple in operation. In addition, the functional monomer is directly introduced into the copolymerization reaction to react with other cationic monomers. During the polymerization process, anions, cations and tertiary amine groups are attached to polycarboxylic acid molecular chains, so that the surface adsorbability of cement particles can be improved. The electrostatic repulsion effect between cement particles is improved. Not only the ester type viscosity reduction type polycarboxylate superplasticizer is good in anti-sludge effect for sand and gravel materials high in cement content, but also the ester type viscosity reduction type polycarboxylate superplasticizer is good in dispersibility and viscosity-reducing effect.

The invention discloses a preparation method of an ether viscosity reduction type polycarboxylate superplasticizer, which comprises the following steps: (1) copolymerization reaction; and (2) neutralization reaction. According to the preparation method disclosed by the invention, amide groups are connected to superplasticizer molecules, and then a polycarboxylate molecular chain has anion and cation groups, so that adsorbability on the surfaces of cement particles can be increased, the electrostatic repulsion effect between the cement particles can be increased, and a better viscosity reduction effect on concrete is achieved. Moreover, the amide groups are hydrolyzed under alkaline conditions so as to release potential carboxyl groups again, thereby being favorable for improving the dispersibility and slump retentivity of the superplasticizer and realizing high adaptability to cement of different varieties.

The invention discloses a method for preparing dispersible ultra-fine silicon dioxide. The method is characterized by comprising the following steps of: adding a liquid surface modifier into a precipitated silicon dioxide filter cake raw material; coating the surfaces of silicon dioxide particles in the precipitated silicon dioxide filter cake to form coating liquid by using the liquid surface modifier with strong stirring; and drying and activating the coating liquid to prepare a dispersible ultra-fine silicon dioxide powder product, wherein the surface modifier accounts for 1 to 50 percent of the mass of the silicon dioxide of the precipitated silicon dioxide filter cake. Experiment results show that: according to an SEM image of the dispersible ultra-fine silicon dioxide dispersed in an organic medium, the particle sizes of silicon dioxide particles are between 100 nm and 10 mu m; and the particle sizes of the silicon particles are between 100 and 400 nm and are distributed uniformly when a boric acid ester coupling agent is adopted.

The invention relates to a water-based UV paint, particularly a high-water-resistance quick-photocuring pearlescent water-based UV paint, and a preparation method and application method thereof. The paint is prepared from a water-based polyurethane acrylate resin, a water-based epoxy acrylic resin, a functional monomer, a photoinitiator, a leveling agent, an anti-settling agent, pearl powder and a solvent, wherein the functional monomer comprises at least one of dipentaerythritol hexaacrylate, pentaerythritol triacrylate and trimethylolpropane triacrylate. The number of the functional groups of the dipentaerythritol hexaacrylate, pentaerythritol triacrylate and trimethylolpropane triacrylate is 3 or above. The photocured paint film has the advantages of high crosslinking density, excellent hardness, excellent tensile strength and excellent mechanical properties. The water-based epoxy acrylic resin is introduced on the basis of the water-based polyurethane acrylic resin, thereby enhancing the water resistance of the paint film. By introducing the pearl powder and anti-settling agent, the paint film has gorgeous pearl effects.

The invention discloses a magnetic refrigeration cooling device and control system which comprises a magnetic refrigeration system, a cooling system and a driving control system. The magnetic refrigeration system comprises a magnetic field system, a magnetic working medium device, a refrigeration end and a heating end, a magnetic working medium is placed into the magnetic field system, the magnetic torque of the magnetic working medium is neat or disordered along with change of a magnetic field direction, the cooling system comprises a pump, a disk seamless cooling pipeline, a disk seamless heat absorption pipeline, a draft tube and cooling liquid, and the cooling liquid circulates in the pipeline in a reciprocating manner under driving of the pump. By the aid of a single-chip microcomputer in the adaptive on-off driving control system for an intelligent temperature control switch, on one hand, periodic change of the magnetic field system is controlled, on the other hand, the pump is controlled to drive the cooling liquid to periodically and circularly flow, the cooling efficiency of the system is higher than that of a traditional single cooling system by the aid of magnetic refrigeration technology, magnetic leakage can be effectively decreased, a cooled part can be intelligently cooled, energy is saved, environments are protected, pollution is avoided, and noise is quite low.

The invention discloses aqueous polyurethane, and a preparation method and application thereof. The preparation method comprises: 1) dissolving isocyanate, polyethenoxy ether and a catalyst in a solvent, reacting at 45-95 DEG C for 0.5-3 h to obtain a polyurethane prepolymer, wherein isocyanate is diisocyanate and / or polyisocyanate, polyethenoxy ether is polyether with a single hydroxyl group, the catalyst is triethylenediamine, stannous octoate or dibutyltin dilaurate, and the solvent is one or more of acetone, ethyl acetate, toluene and cyclohexane; 2) reacting the polyurethane prepolymer with a compound containing two or more hydroxyl groups or amino groups, replenishing the solvent of the step 1) to a solid content of 50%-80%, and keeping the reaction until the content of isocyanate is zero, wherein the compound containing two or more hydroxyl groups or amino groups is one or more of a diol, a triol, a dihydric phenol and a diamine; and 3) removing the solvent. The aqueous polyurethane provided by the invention is low in surface tension and good in wetting performance; and after prepared, the aqueous polyurethane can be adsorbed by the surface of a pigment / filling material, helps to prevent the pigment / filling material from flocculating and helps the pigment / filling material to form a stable disperse system.

The invention discloses a water-based electrothermal coating and a preparation method of the water-based electrothermal coating. The coating comprises a water-based dispersion containing a matrix resin, nickel coated carbon nanotube composite powder and auxiliary materials which can be selectively added, wherein the composite powder comprises a carbon nanotube and nickel coated on the carbon nanotube. The preparation method of the water-based electrothermal coating comprises the following steps: the surface of a carboxylated carbon nanotube is subjected to the adsorption of nickel ions, and the nickel ions are reduced to a nickel elementary substance to be served as a nucleation core, chemical nickel-plating is carried out to form the nickel coated carbon nanotube composite powder, and then the composite powder is mixed with the water-based dispersion containing the matrix resin and ground to obtain a composite dispersion paste, and the composite dispersion paste is further compounded with the other auxiliaries to prepare the electrothermal coating. According to the invention, the contact resistance of the original carbon nanotube network can be greatly reduced, so that the coating has the advantages of being low in resistance, high in electrothermal conversion efficiency and the like, is suitable for being used as various electrothermal coatings driven by low voltage, and further has convenience in construction, safety and environmental protection and wide application prospects.

The invention discloses water-base scaling powder and a preparation method and application thereof. The water-base scaling powder is prepared from, by mass, 2.0-4.% of water-soluble rosin resin, 4.5-7.0% of formulated organic acid, 0.1-0.4% of formulated surfactant, 4-8% of organic solvent, 0.1-0.3% of other additives and the balance deionized water. On one hand, the water-base scaling powder is completely suitable for a wave-soldering welding technology, and has the advantages that the weldability is high, the tin penetration property is excellent, postwelding residues are few on the plate surface, the surface insulation resistance is extremely high and the water-base scaling powder is easy to clean; on the other hand, the water-base scaling powder is mild in smell, and in the welding process, the scaling powder is low in smog, high in wettability, free of flashing point and safe to use, and the affinity of the scaling powder is good for water. The preparation method is environmentally friendly and safe, harmless to human body and free of flashing point, the technological conditions are easy to control, and the properties of the prepared water-base scaling powder are stable.

The invention discloses a conductive plugging slurry and a preparation method and application thereof. The conductive plugging slurry comprises the following components in mass percentage: 0.5 to 5% of graphene, 50 to 80% of metal conductive powder, 10 to 30% of resin, 1 to 5% of curing agents, 0.1 to 3% of auxiliaries, and 1 to 10% of solvents. In addition, the preparation method includes: preparing a graphene conductive slurry; preparing a metal powder conductive slurry, and mixing the graphene conductive slurry and the metal powder conductive slurry. The conductive plugging slurry has the uniform and stable slurry dispersion system; and the storage time is long. After solidification, the formed conductive plugging solidified film has stable conductivity, high-temperature-resistant and heat-resistant characteristics, and high stability; and a breaking phenomenon is avoided.

The invention discloses an antifouling antibacterial ceramic glaze, which is prepared from, by weight, 50-60 parts of basic glaze slurry, 7-9 parts of calcium oxide, 3-5 parts of calcium carbonate, 4-6 parts of aluminum hydroxide, 4-5 parts of an antibacterial agent, 5-7 parts of nano zinc oxide, 2-3 parts of sodium hexametaphosphate, 8-10 parts of a phosphoric acid aqueous solution and 2-3 partsof an yttrium nitrate aqueous solution. The invention further discloses a preparation method of the antifouling antibacterial ceramic glaze. By the adoption of the antifouling antibacterial ceramic glaze and the preparation method thereof, the antibacterial agent is added into basic glaze, the antibacterial agent can be uniformly distributed in the glaze, and sintered ceramic can continuously andslowly release silver ions in water, so that a continuous antibacterial effect is achieved; the phosphoric acid aqueous solution and the yttrium nitrate aqueous solution are adopted in the glaze, so that the ceramic sintered by the glaze has good hydrophobicity, dirt cannot be firmly attached to the surface of the coating, the dirt can be washed away when water drops flow past a surface layer, andan antifouling effect is achieved; and a preparation process is simple, the conditions are easy to control, and production cost is low.

The invention discloses a graphene-based nanometer zero-valent iron coating comprising the following components in parts by weight: 1-20 parts of graphene-based nanometer zero-valent iron, 1-15 parts of graphene-based nanometer titanium dioxide, 1-15 parts of graphene-based nanometer aluminum oxide, 1-15 parts of graphene-based nanometer silicon dioxide, 1-15 parts of graphene-based nanometer calcium carbonate, 5-60 parts of epoxy resin, 3-30 parts of polyphenylene sulfide resin, 1-15 parts of an amino resin crosslinking agent, 3-50 parts of a mixed-type organic alcohol solvent, 0.5-1.9 parts of a nonionic surfactant, 0.8-1.6 parts of a dispersing agent, 0.5-1.5 parts of a thickening agent, 0.1-0.3 part of a defoaming agent, 0.1-5 parts of a plasticizer, 0.2-0.5 part of a flatting agent, 1-10 parts of a pigment and 0.5-1.0 part of a filler. The invention also provides a preparation method of the coating. The performances such as high temperature resistance, corrosion resistance, hardness, surface adhesion, weather resistance, acid and alkaline resistance and impact resistance of the coating disclosed by the invention are remarkably improved.

The invention relates to a water-based wetting dispersant which comprises sulfonate, sulfate and polycarboxylate, wherein weight percentage of sulfonate to sulfate is 5-15%: 85-95%, weight percentage of sulfate to polycarboxylate is 10-30%: 70-90%, sulfate is one selected from the group consisting of sodium dodecyl benzene sulfonate, sodium butylnaphthalenesulfonate and sodium sulfanilate, sulfate is one selected from the group consisting of sodium dodecyl sulfate, sodium alcohol ether sulfate and sodium amine ether sulfate, and polycarboxylate is one selected from the group consisting of polyacrylic acid, polymethacrylic acid and maleic-acrylic acid. The invention is advantaged in that the anionic water-based wetting dispersant with a plurality of surfactants as main components is brought forward and has a stable structure, good dissolvability in water and good wetting dispersibility.

The invention discloses a preparation method of a high-fixation-rate nano liquid disperse dye. The method comprises the following steps of: mixing a grinding aid with a certain amount of deionized water to fully swell the grinding aid; adding a disperse dye, propylene glycol, a basic dispersing agent and a wetting agent, carrying out pre-grinding; and adding the residual deionized water; adding ahyperbranched dispersant into the ground system, and perform further grinding; carrying out suction filtration by using a filter screen; adding an anti-flocculating agent and a preservative into a filtrate; and carrying out high-speed shearing emulsification to obtain the high-fixation-rate nano liquid disperse dye. The liquid disperse dye is applied to the printing process of polyester fiber fabric; the fixation rate of the liquid disperse dye on the fabric can be increased; color flooding on the surface of the fabric is prevented; the effect of wash-free printing is achieved; the printed fabric can be endowed with good wearing fastness; the soft hand feeling of the fabric can be guaranteed; and the discharge amount of printing and dyeing wastewater can be reduced.

The invention discloses a process for producing lignin diesel. The method is characterized by comprising the following steps of: uniformly mixing the components of an emulsifier in a ratio, forcibly dispersing the uniformly mixed emulsifier and diesel by a physical means to obtain a stable dispersing system, then adding assistant emulsifier and an oil modifier in a certain ratio, injecting decolored alkali lignin aqueous solution from which impurities are removed into the system at a constant speed, continuously dispersing cyclically for certain times, taking out and naturally settling for 1 to 2 days, and filtering to obtain supernate, namely the lignin diesel. In the process, the lignin diesel is prepared from the waste lignin used as raw materials instead of partial diesel. The process has the advantages of simplicity, easiness in amplification, and industrialization and the like.

The invention discloses a titanium dioxide slurry pretreatment method. The method comprises the following steps of: performing wet grinding on titanium dioxide slurry through a sand grinding machine; grading the titanium dioxide slurry subjected to wet grinding through a hydrocyclone; returning particles with particle size exceeding preset particle size to perform wet grinding again; and collecting particles of which the particle size is less than the preset particle size for performing enveloping process. With the adoption of the method, the problem of flocculation and caking of titanium dioxide under slurrying can be avoided, thus titanium dioxide slurry with outstanding particle-size distribution and capable of effectively serving for the enveloping process can be obtained.

The invention discloses an efficient anticorrosion zinc-type phosphating solution and a preparation method thereof. The zinc-type phosphating solution comprises the raw material formula components of,by weight, 1-15 parts of Zn<2+>, 10-40 parts of PO4<3->, 0.01-1 part of oxidized graphene, 1-15 parts of a GO dispersing agent, 1-15 parts of a stabilizer, 5-15 parts of a pH modifier and 1000 partsof water. According to the prepared phosphating electrolyte, the safe and non-toxic effects are achieved, a phosphating film can be quickly and efficiently prepared, and especially when a metal workpiece serves as a cathode in the phosphating solution for electrolytic phosphating, the workpiece can have a smooth surface and multiple excellent properties such as scratch resistance and aging resistance. The oxidized graphene can be evenly distributed in a coating of the phosphating film, micro-holes in the surface of a phosphate film are effectively filled with the oxidized graphene, thus an isolation layer is formed, the physical shielding effect is achieved, a way through which a corrosive medium directly makes contact with the metal workpiece is blocked, occurrence of electrochemical corrosion is further inhibited, and the corrosion rate is decreased to a large extent.

The invention discloses a veterinary compound levamisole hydrochloride suspension oral liquid and a preparation method thereof. The compound levamisole hydrochloride suspension oral liquid is composed of levamisole hydrochloride, oxyclozanide, cobalt sulfate, agar powder, a suspending aid, a wetting agent, disodium ethylene diamine tetraacetate and a surfactant. A stable and uniform dispersion system is formed under the action of mechanical shearing force by wetting with the wetting agent and using the dispersion characteristic of the surfactant and the suspension aiding characteristic of the suspending aid on the basis of levamisole hydrochloride and oxyclozanide in order to prepare the compound suspension oral liquid, and the oral liquid is taken by cattle and sheep in a feed mixing or drinking water mixing mode to dispel parasites in order to treat and prevent infection of gastrointestinal nematodes, lung nematodes and other parasites in clinics and animal production, and can improve the stress resistance and the immunity of animals.

The invention discloses aqueous printing ink with a flame retardant effect and a preparation method thereof. Raw materials of the aqueous printing ink with the flame retardant effect are prepared fromwaterborne epoxy resin, modified acrylic resin, calcite in powder, an inorganic pigment, a flatting agent, a defoamer and deionized water. Meanwhile, the invention discloses a corresponding preparation method which comprises the following steps: adding the waterborne epoxy resin and the modified acrylic resin into a stirrer to prepare a pre-mixture; preparing mixed color paste from the calcite inpowder and the inorganic pigment; and finally, jointly stirring the two in a reaction kettle with the flatting agent and the defoamer and dispersing and grinding the mixture to obtain a finished product printing ink. The aqueous printing ink with the flame retardant effect solves the problem of volatilization of a solvent. Compared with solvent printing ink, the printing ink is more healthy and environmentally friendly. By adding the modified acrylic resin, water molecules are more easily diffused while improving the adhesive force of the pigment. An alcohol solvent is not added to improve the drying speed, so that the flammable and combustible risk is reduced, and the printing ink has good safety.

The invention discloses a graphene-based nanometre zero-valent zinc coating. The graphene-based nanometre zero-valent zinc coating comprises the following components in parts by weight: 1-20 parts of graphene-based nanometre zero-valent zinc, 1-20 parts of graphene-based nanometre titania, 1-20 parts of graphene-based nanometre calcium carbonate, 5-60 parts of epoxy resin, 3-30 parts of polyphenylene sulphide resin, 1-15 parts of an amino resin cross-linking agent, 3-50 parts of a mixed organic alcohol solvent, 0.5-1.9 parts of a non-ionic surfactant, 0.8-1.6 parts of a dispersant, 0.5-1.5 parts of a thickener, 0.1-0.3 parts of a defoamer, 0.1-5 parts of a plasticizer, 0.2-0.5 part of a flatting agent, 1-10 parts of pigments and 0.5-1.0 part of fillers. The invention provides a preparation method of the coating simultaneously. The performances of high-temperature resistance, corrosion resistance, hardness, surface adhesion force, weather resistance, acid-base resistance, impact resistance and the like of the coating disclosed by the invention are remarkably improved.

The invention discloses a graphene-based nanometer zero-valent aluminum coating comprising the following components in parts by weight: 1-20 parts of graphene-based nanometer zero-valent aluminum, 1-20 parts of graphene-based nanometer zero-valent zinc, 1-15 parts of graphene-based nanometer titanium dioxide, 1-15 parts of graphene-based nanometer silicon dioxide, 1-15 parts of graphene-based nanometer calcium carbonate, 5-60 parts of epoxy resin, 3-30 parts of polyphenylene sulfide resin, 1-15 parts of an amino resin crosslinking agent, 3-50 parts of a mixed-type organic alcohol solvent, 0.5-1.9 parts of a nonionic surfactant, 0.8-1.6 parts of a dispersing agent, 0.5-1.5 parts of a thickening agent, 0.1-0.3 part of a defoaming agent, 0.1-5 parts of a plasticizer, 0.2-0.5 part of a flatting agent, 1-10 parts of pigment and 0.5-1.0 part of a filler. The invention also provides a preparation method of the coating. The performances such as high temperature resistance, corrosion resistance, hardness, surface adhesion, weather resistance, acid and alkaline resistance and impact resistance of the coating disclosed by the invention are remarkably improved.

The invention relates to a ginkgo flavone liposome oral emulsion formula and a preparation method thereof. In the prepared oral emulsion, a ratio of ginkgo flavone to phospholipid is 0.5-1:5:1. The oral emulsion also comprises vitamin E, cholesterol, sorbitol, beta-cyclodextrin, polyethylene glycol (PEG), and lactose. The ginkgo flavone liposome oral emulsion provided by the invention can endure 30min of heat sterilization treatment under a temperature of 121 DEG C, and has high tolerance against low-pH environments. Therefore, a preparation requirement for large change in stomach and intestinal pH values after oral administration is satisfied. The liposome can be digested and absorbed by human body, such that ginkgo flavone pharmacological effect can be improved.

The invention provides modified asphalt and a preparation method thereof, and the modified asphalt comprises the following components in parts by weight: 125-150 parts of matrix asphalt, 15-50 parts of rubber powder, 5-10 parts of furfural extract oil, 5-15 parts of epoxy resin, 5-10 parts of a diluent, 3-8 parts of a curing agent and 6-12 parts of a stabilizer. Effective combination of the rubber powder, the furfural extract oil, the epoxy resin, the diluent and the curing agent is achieved, and the prepared modified asphalt is not prone to layering, has good compactness and flatness, is excellent in pavement performance, can be directly used for road paving and is suitable for industrial production.

The invention belongs to the technique area of evaluating the properties of materials. The steps of operation includes preparing the crane, the setting up the disperse system of the nano powder material to the evaluated, the setting up the background, the measuring the ultraviolet sheidling curve of the material and the evaluating the performance of shielding ultraviolet. Glycol is selected as the dispersant. Siphon technique is utilized to carrier out the automatic film coating, providing high accuracy, good repeatability, fast analysis testing. The method can evaluate the properties of material for shielding ultraviolet, providing the reference frame for developing new nano material and filtering out suitable material for shielding ultraviolet so as to possess wide application prospect.

The present invention discloses a hot-melt adhesive for hardcover book processing, and a preparation method thereof. A purpose of the present invention is to solve the problem of easy cracking in theexisting adhesive for hardcover books. The technical scheme is that the hot-melt adhesive comprises, by weight, 15-25 parts of a thermoplastic polyurethane resin, 3-10 parts of toluene diisocyanate, 30-50 parts of polyol, 2.5-8.5 parts of an anhydride group, 2-5 parts of a filler, 12-24 parts of an epoxy resin, 3-8 parts of bentonite, and 2-8 parts of petroleum wax. According to the present invention, the hot-melt adhesive obtained by using the components through the preparation method has high toughness; and when the hot-melt adhesive is adhered between the surface of the hardcover book and the core of the hardcover book, the cracking due to brittleness is not easily generated so as to prolong the service life of the hardcover book.

The invention discloses uniconazole water dispersible granules and a preparation method thereof. The uniconazole water dispersible granules comprises the following raw materials by mass parts: 0.1-90of uniconazole, 1-10 of moistening agent, 1-10 of dispersant agent, 2-20 of disintergrants and 1-10 of binder. The preparation method is as follows: blending all the raw materials forming the uniconazole water dispersible granules, crushing by ultrafine air flow, pelleting, drying and sieving to obtain the uniconazole water dispersible granules. The uniconazole water dispersible granules overcomethe defects of the powder, is safe to environment, people and livestock and other beneficial living beings, does not easily generate chemical disorder, is easily controlled in release and orientation,does not have dust, has fast speed of granule disintegration and is not polluted by packaging, has good storage stability and simple preparation technique and is suitable for industrialization production.

The invention relates to a nano-scale multifunctional liquid premixed feed and a preparation method thereof. The feed is stable, uniform and transparent liquid and is prepared by emulsifying and stabilizing various active ingredients with a surfactant and a cosurfactant in groups. The preparation process mainly has the following innovations that: the characteristic of the action among the surfactant, an emulsifying agent, a stabilizing agent, an inorganic salt and the active ingredients is skillfully utilized to effectively disperse three types of active ingredients consisting of vitamin, natural pigment and amino acid which are difficult to dissolve together in the same system; and the grains of the colloid have nano-scale sizes ranging from 20 to 60nm. The premixed feed is suitable to be used in the breeding of livestock and poultry and has the effects of meeting an emergency, preventing diseases, keeping health, fattening, effectively improving the intrinsic quality and exterior quality of the animal products and the like.

The invention relates to the technical field of modification of flame retardant, and provides whitened red phosphorus with high flame-retardant efficiency and a preparation method of the whitened redphosphorus. The preparation method comprises the steps of: adding penetrant and emulsifier into water to form a first solution, adding red phosphorus and an aluminum salt into the first solution to form a second solution, heating the second solution to prepare an emulsifying dispersion system, dissolving sodium hypophosphite in water to obtain a sodium hypophosphite solution, and adding the sodiumhypophosphite solution into the emulsifying dispersion system so as to obtain a third solution and prepare a first coating layer at the moment; adding aluminum sulfate octadecahydrate into water to obtain an aluminum sulfate solution, adding sodium carbonate decahydrate into water to form a sodium carbonate solution, adding the aluminum sulfate solution and sodium carbonate solution into the third solution to form a fourth solution, and conducting aging to obtain a second coating layer; adding a formaldehyde solution into melamine to obtain a melamine-formaldehyde resin prepolymer; and addingrutile titanium dioxide and the melamine-formaldehyde resin prepolymer into the fourth solution to form a fifth solution to obtain the whitened coated red phosphorus. The whitened red phosphorus hasa low addition amount, high flame-retardant efficiency, high whiteness, good moisture absorption and good oxidation resistance.