559results about How to "The ratio is scientific and reasonable" patented technology

The invention relates to a feed for early weaned piglets, which belongs to the field of the feed. Main ingredients of the feed comprise expanded corn, full-fat soybean, fat powder, steam fish meal, acidified whey powder, fermented soybean meal, a complex enzyme preparation, a micro-ecological preparation, amino acids, complex vitamins, complex trace elements and the like. The digestive physiological characteristics of the weaned piglets are fully considered on the selection and the processing of raw materials, thereby greatly improving the palatability and the digestion rate of the feed; simultaneously, through the synergistic compatibility of an egg yolk antibody, lactein, sodium humate and the complex micro-ecological preparation, the diarrhea rate of the weaned piglets is reduced, the effects are superior to those of adding antibiotics into the feed, and the feed is the green, environmentally-friendly and nuisanceless feed. An animal feeding experiment proves that the feeding effects are ideal, the palatability is good, the piglets after weaning are high in average feed intake, fast in daily weight gain and low in diarrhea rate, and the feed has a good promoting effect for growth and health conditions of the weaned piglets and can meet the demands of most of raisers at present.

The invention discloses powder coating with super-weathering resistance, a preparation method and an application thereof. The powder coating comprises the following raw materials in parts by weight: 40-90 parts of weather-resistant polyester resin, 3-30 parts of thermosetting fluorocarbon resin, 4-50 parts of curing agent, 0.1-1.5 parts of flatting agent, 0.2-0.8 part of degasifying agent, 0-4.5 parts of defoaming agent and 4-45 parts of pigment and filler. The powder coating with super-weathering resistance provided by the invention has scientific and reasonable proportioning in the aspects of raw material composition and raw materials, fine comprehensive properties such as flexibility, hardness, adhesive force and the like, stable chemical property, easy storage, performances of acid rain, ozone, ultraviolet ray and chemical medicine resistance and the like in long-term outdoor use, environment protection and wide application range. The preparation method provided by the invention has reasonable processes, strong operability, high qualified rate of finished products and capability of realizing industrialized production.

The invention discloses a powder coating with an antibacterial function and a preparation method and an application thereof. The powder coating comprises the following raw materials in the parts by weight: 60-90 parts of resin, 2-40 parts of curing agent, 1.5-10 parts of antibacterial agent color concentrate, 0.5-2 parts of flatting agent, 0-4.5 parts of defoaming agent, 4-30 parts of pigments andfillers and 0-15 parts of other auxiliary agents. The powder coating provided by the invention has the functions of bacterium resistance and broad spectrum and has strong functions of sterilizing andinhibiting various bacteria and mould fungi; the heat resistant temperature of the inorganic antibacterial agent can reach 500 DEG C, and the inorganic antibacterial agent has good heat stability; and the inorganic antibacterial agent is a silver ion antibacterial agent using glass as a carrier, has good transparency and can be made into a transparent antibacterial powder coating which has the advantages of safety and wide application range. The preparation method provided by the invention has reasonable processes, strong operability and high qualified rate of the prepared finished products and can realize industrial production in a large batch.

A polyurethane caulking material for expansion joints of a ballastless track of a high speed railway is disclosed. The caulking material is prepared from two parts A and B. the part A is composed of the following raw materials, by weight, 100 parts of isocyanate and its prepolymer, 10-150 parts of a plasticizer, 5-150 parts of a solid filler, 1-20 parts of a diluents, 1-5 parts of an adhesion promoter, 0-10 parts of a thixotropic agent and 1-3 parts of a water-removal agent. The part B is composed of the following raw materials, by weight, 10-20 parts of modified polyhydric alcohol, 1-5 parts of a diluent, 2-30 parts of a plasticizer, 5-30 parts of a solid filler, 0-5 parts of a thixotropic agent, 0.5-2 parts of an antifoaming agent, 0.1-1 part of an anti-aging agent and 0-0.01 part of a catalyst. The mass ratio of the part A to the part B is 4:1-10:1. The polyurethane caulking material has advantages of good low-temperature curing performance, high displacement capability, low tensile modulus, good bond property and excellent endurance quality and fatigue resistance, and is suitable for expansion joints of a ballastless track of a high speed railway as well as expansion joints of roads and airfield runways.

The invention discloses an antitranspirant foliar fertilizer and a preparation method thereof. The antitranspirant foliar fertilizer comprises the raw materials of copper sulfate, ethylene diamine tetraacetic acid, monopotassium phosphate, zinc sulfate, ferrous sulphate, manganese sulphate, ammonium molybdate, composite rare earth, boric acid, sodium dodecyl sulphonate, urea, fulvic acid, hexanoic acid 2-(diethylamino) ethyl ester, compound amino acid, magnesium sulfate, calcium nitrate, ethylene diamine tetraacetic acid, microbial agent, azone and ammonia water. The antitranspirant foliar fertilizer provides nutrient elements and microbial agents which are required by the growth of plants, the rare earth and amino acid and other beneficial elements, can promote the growth of the plants, improve the yield, the quality, the stress resistance of the plants and the absorbing and operating capabilities on trace elements, simultaneously can effectively reduce the transpiration of the plants and is applied to afforesting in arid regions.

The invention discloses a biological non-antibiotic complete feed for piglets and a preparation method thereof, and belongs to the technical field of animal feed. The invention solves the defects that current piglet feed rich in antibiotics destroys the intestine colony balance of piglets and reduces the piglet immunity. The feed comprises main ingredients of corn, extruded corn flour, dehulled soybean meal, wheat bran, degreased rice bran meal, peanut meal, germ meal and corn alcohol lees. The preparation method is as below: first fully stirring to mix stone powder, calcium hydrogen phosphate and salt into an additive semi-finished product, then adding corn and extruded corn powder, spraying oil for stirring granulation, so as to obtain biological non-antibiotic complete feed for piglets. The feed provided by the invention is mainly used for the piglets with yet incompletely developed immune system.

The invention discloses a method for preparing fine-grain silicon carbide ceramic through reaction sintering. The method sequentially comprises the following steps: preparing a main material comprising 75-90wt% of silicon carbide micro-powder and 10-15wt% of active carbon powder; adding a dispersant and deionized water to the main material, sequentially adding an aqueous solution of organic matters containing high temperature carbon residue and a water-soluble polymer binder solution, and stirring and mixing above materials in a ball mill to prepare a uniformly-dispersed water-based silicon carbide slip; and sequentially carrying out spray granulation, dry press molding, dewaxing, vehicle working, high temperature siliconising sintering and alkali treatment desilication to obtain the silicon carbide ceramic.

The invention provides a composition with anti-tumor effect and application thereof. The composition consists of 0.01 to 10 weight parts of pure bufadienolide compound, extract rich in bufadienolide compound, raw toad venom or toad skin and 0.01 to 99.9 weight parts of medicament with anti-arrhythmic effect. The composition with the anti-tumor effect has the advantage that the match among the components is scientific and reasonable; multiple in vitro tumor cytotoxicity and in vivo tumor inhibiting experiments show that the composition provided by the invention has good anti-tumor effect and plays a role in synergy after combination; and cardiotoxic experiments show that the cardiotoxicity of the composition provided by the invention is obviously reduced, and the composition can reduce the cardiotoxicity caused by primary single use of the bufadienolide compound, the toad venom or the toad skin and plays a role in detoxifying. Therefore, the composition is safer and more effective to use, and is expected to develop a new generation anti-cancer medicament.

The invention relates to high-gloss cathodic electrophoretic paint and a preparation method thereof. The paint comprises emulsion and a color paste; the mass percent of the emulsion is 36 to 40 percent; and the mass percent of the color paste is 5 to 6 percent. The formula of the emulsion takes the mass percent as the unit and comprises 20 to 60 percent of amine modified epoxy resin, 5 to 20 percent of isocyanate sealing element, 30 to 60 percent of deionized water, 0.3 to 0.6 percent of emulsifying agent and 0.3 to 0.6 percent of formic acid. The color paste comprises 10 to 40 percent of quaternary ammonium salt dispersion resin, 35 to 45 percent of deionized water, 5 to 8 percent of dibutyl tin oxide, 10 to 20 percent of kaolin, 5 to 15 percent of carbon black and 2 to 5 percent of emulsifying agent. The method comprises the following step of: after mixing the color paste, the emulsion and the deionized water according to the proportion of 1:7:11, carrying out electrophoresis coating for 3 to 4min at the construction voltage of 200V after curing for 48 to 50h at the temperature of 28 to 30 DEG C. The invention has scientific and reasonable mixture ratio, high gloss of a coated film, good decoration property, high safety and environmental protection.

The invention discloses a down feather composite fiber modified by polypropylene fiber. The down feather composite fiber modified by polypropylene fiber is prepared from the following raw materials in parts by weight: 18-20 parts of superfine duck down powder, 25-30 parts of puffed goose feather powder, 12-15 parts of polypropylene fiber, 3-5 parts of kaolin, 0.3-0.6 part of calcium saccharate, 1-2 parts of wolfberry fruit, 2-4 parts of fruit of Chinese magnoliavine, 1-3 parts of radix rehmanniae, 3-5 parts of cucumber juice, 0.1-0.3 part of ammonium dihydrogen phosphate, 120-130 parts of 1-butyl-3-methyl imidazole dibutyl phosphate, 110-140 parts of 1-ethyl-3-diethyl methyl imidazole phosphoric acid, 2-4 parts of additives and a proper amount of water. According to the down feather composite fiber modified by polypropylene fiber, the components such as the polypropylene fiber, the wolfberry fruit, the fruit of Chinese magnoliavine and the radix rehmanniae are added; the prepared product is soft and smooth in hand feeling, has the characteristics of the down feather, also has the characteristics of being light, soft, warm, breathable, moisture permeable, mildew-proof, mothproof and washable, and is wide in application prospect and further and more competitive in the market.

The invention discloses an aqueous PU velvet resin used for synthetic leather, which comprises the following raw materials by weight percent: 40-50% of aqueous polyurethane resin, 40-50% of water, 2-5% of low-temperature sheep bar powder, 2-4% of silicon dioxide velvet powder, 1-3% of organic silicone oil smoothing agent, 1-4% of extinction powder, 0.5-1% of organic silicon flatting agent, 2-5% of organic silicon antifoaming agent and 0.5-2% of aqueous polyurethane thickening agent. The aqueous PU velvet resin used for synthetic leather of the invention takes water as solvent to replace toxic solvent, such as dimethyl fomamide, butanone and the like and has the advantages of being non-combustible, safe and environment-friendly, saving cost and the like. The aqueous PU velvet resin also has the advantages of good film-forming resistance, firm bonding, coating solvent resistance, cold resistance, hydrolysis resistance and heat-proof aging. Products fabricated by using the resin have the characteristics of plump feel, unique velvet effect, strong real leather quality, fine and smooth texture, good air permeability and the like.

The invention discloses an edible milk tablet having the effect of protecting eyes. Compared with the conventional edible milk tablet, the eye protecting milk tablet is prepared by evenly mixing and pressing the following materials in specified proportion: full-cream milk powder, skim milk powder, lutein, Chinese wolfberry powder, blueberry powder, gelatinized starch and other auxiliary materials.Each 100 g of finished milk tablets comprise the following components in percentage by mass: (5 to 65) percent of full-cream milk powder, (20 to 70) percent of skim milk powder, (0.002 to 0.020) percent of lutein, (1.0 to 15) percent of Chinese wolfberry powder and (1.0 to 10) percent of blueberry powder. The lutein, the Chinese wolfberry powder and the blueberry powder have the effect of protecting the eyes, and the milk tablet prepared by combing the lutein, the Chinese wolfberry powder, the blueberry powder and the full-cream milk powder has stronger eye protecting physiological activity.The components are food, food with homology of herbs and food or nutritional fortifiers approved by health departments. The eye protecting milk tablet comprises the manufacturing process of preheating, multiple dilutions of traceingredients, preparation, tabletting, inspection, packaging, and finished product obtaining. The product is suitable for groups using computer for a long time, young students, elder groups and personnel frequently using eyes to operate fine instruments and drive.

The invention belongs to the technical field of polymer flame retardants and in particular relates to a two-dimensional nano-filler synergistic flame retardant as well as a preparation method and application thereof. The synergistic flame retardant is prepared from the following components in parts by mass: 100 parts of flame retardant, 2 to 500 parts of two-dimensional nano-filler, 5 to 500 partsof plant polyphenol and 1 to 100 parts of polyvalent metal salt. The preparation method of the synergistic flame retardant comprises the following steps: firstly, carrying out multi-coordination complexing reaction on the plant polyphenol and polyvalent metal ions to clad the flame retardant and the two-dimensional nano-filler respectively; then, loading the flame retardant to the surface of thetwo-dimensional nano-filler by utilizing the complexing reaction. According to the two-dimensional nano-filler synergistic flame retardant, the raw materials have a scientific and reasonable ratio anda preparation technology is simple, the raw materials are convenient to operate and low in cost; the prepared synergistic flame retardant has good dispersity and high flame-retarding efficiency; thesynergistic flame retardant is added into a polymer matrix through a solution blending, emulsion blending or melt-blending method; a high-performance flame-retarding polymer composite material with excellent flame-retarding performance, mechanical performance and the like can be prepared and is widely applied.

The invention discloses an acid-proof cathode electrophoretic paint as well as a preparation method and an application method. The electrophoretic paint comprises emulsion and color paste, wherein the emulsion is prepared by steps of mixing amine modified epoxy resin, a totally-closed isocyanate cross-linking agent and an emulsifying agent, uniformly stirring at the temperature of 43 DEG C to 47 DEG C, adding formic acid at the temperature of 45 DEG C to 49 DEG C to perform an acidification reaction for more than 70 minutes, subsequently adding deionized water, uniformly stirring and then filtering. The color paste is prepared by the steps of mixing quaternary ammonium dispersion resin, deionized water, dibutyl tin oxide, kaolin, carbon black, an emulsifying agent, rutile titanium dioxide and titanium-based nanometer paste, uniformly stirring at the temperature not higher than 30 DEG C, grinding the mixture at the temperature not higher than 35 DEG C by use of a grinder until the fineness is not larger than 15 microns, uniformly stirring and filtering. An application process comprises batching, preparation of a tank and an electrophoretic coating process; the preparation of the tank comprises steps of mixing 10-15 parts by weight of the color paste, 35-40 parts by weight of the emulsion and 50-75 parts by weight of the deionized water, and curing for 48-50 hours at the temperature of 28-30 DEG C; and the electrophoretic coating process comprises a step of performing electrophoresis to a to-be-coated element for 3-4 minutes under the voltage of 200V.

The invention provides a foaming-free fast-curing high-strength leak-stopping waterproof polyurethane grouting material. The material is composed of a component A and a component B, wherein the component A comprises isocyanate monomer, isocyanate prepolymer and highly-hydrophobic environment-friendly plasticizer, the component B comprises high-activity polyether polyol, chain-extending cross-linking agent, highly-hydrophobic environment-friendly plasticizer and antioxidant, and a volume ratio of the component A to the component B is 1: 1. The leak-stopping waterproof polyurethane grouting material has low viscosity, is convenient to grout, has the characteristics of no foaming and fast curing and the advantages of good leak-stopping effect, high mechanical strength and wet bonding strength and excellent aging resistance, and is applicable to rapid leak stopping, water prevention and reinforcement of distress in concrete of an underground construction.

The invention discloses an irradiation resistant non-halogen low smoke flame-retardant sheathing material applied to nuclear power stations and a preparation method. The raw materials comprises ethane-vinyl acetate rubber, maleic anhydride stem grafting ethane-vinyl acetate rubber, magnesium hydroxide fire retardant, organic silicon fire retardant, nano cerium oxide, FEF, zinc stearate, stearic acid, vinyl trisilane, Aflux A-16, Aflux A-25, polycarbonate diimine(PCD-50), 2, 2, 4-trimethyl-1, 2-dihydride quinoline, antiager DDA, di-tert-butyl peroxide cumene, triene propylcyanide uric acid ester and decanedioic acid dioctyl, which are heated and mixed to obtain the materials of the invention. The invention features scientific and reasonable formula and proportion, and the process is advanced. The sheathing material features fine irradiation resistance, excellent mechanical properties and long service life, thus being a good irradiation resistant non-halogen low smoke and flame-retardant sheathing material applied to nuclear power stations.

The invention discloses lead-free low-melting sealing glass and a preparation method thereof. The glass comprises the following raw materials in percentage by mol: 20 to 55 percent of P2O5, 5 to 30 percent of TeO2, 0 to 55 percent of ZnO and additives with the content not more than 30 percent of that of total compositions of the glass. The lead-free low-melting sealing glass has the advantages that the compositions and composition proportioning of the glass are scientific and reasonable, and the compositions do not contain lead which pollutes the environment or poisons human body; meanwhile, the glass is environment-friendly and low toxic and has wide softening temperature and thermal expansion coefficient ranges; therefore, the glass can be used in low-temperature packaging among different electronic components. Moreover, the simple and reasonable preparation method has strong operability and high qualified rate of finished products and is suitable for continuous large-scale industrialized production.

The invention discloses a liquid compound trace element fertilizer and a preparation method thereof. The fertilizer comprises the following ingredients by weight percent: 0-1.0% of citric acid, 0-1.0% of ascorbic acid (vitamin C), 0-1.0% of hydroxylamine hydrochloride, 0-1.0% of sorbitol, 0-1.0% of xylitol, 0-1.0% of mannitol, 0.46-38% of ferrous sulfate heptahydrate, 0.13-24% of manganese sulfate monohydrate, 0.18-3.3% of copper sulfate pentahydrate, 0.25-2.3% of zinc sulphate monohydrate, 0.25-4% of disodium octaborate tetrahydrate, 0.08-1.5% of ammonium molybdate, and the balance of pure water, wherein the dosage of the citric acid, the dosage of the ascorbic acid and the dosage of the hydroxylamine hydrochloride cannot be 0 at the same time, and the dosage of sorbitol, the dosage of xylitol and the dosage of mannitol cannot be 0 at the same time. According to the invention, an antioxidant prepared from one, two or more of the citric acid, ascorbic acid and hydroxylamine hydrochloride can effectively inhibit ferrous ions from being hydrolyzed into ferric ions, so that the iron ion absorption efficiency is improved, and the color of the product does not change at a high temperature; the raw material resources are rich, the production cost is low, and the equipment and production technologies are simple.

The invention relates to soybean peptide protein powder with a scientific and reasonable proportion and a preparation method of the soybean peptide protein powder. The soybean peptide protein powder comprises the following raw materials in parts by weight according to dry weights: 44-68 parts of soybean protein isolate, 18-22 parts of whey protein, 8-12 parts of soybean peptide powder, 10-14 parts of fructose, 0.4-0.6 part of silicon dioxide powder, 0.4-0.6 part of milk essence, 0.4-0.6 part of vanilla essence and 0.4-0.6 part of a compound thickening agent. The soybean peptide protein powder is elaborately researched by selecting acknowledged high-quality plant protein-soybean protein isolate and acknowledged high-quality animal protein-whey protein in scientific and reasonable proportion, and adding other components including the soybean peptide powder with abundant nutrition and good absorbency, the fructose with high sweetness and low glycemic index and the like. The product provided by the invention has the scientific and reasonable proportion, the simple preparation method, a good taste and abundant nutrition, has the effects of effectively improving and enhancing the physical quality of human bodies, improving the human immunity, and lowering the hypertension, the hyperlipidemia and the high cholesterol of the human bodies, and is particularly suitable for people at the sub-health state to eat.

The invention discloses an improved fertilizer for saline and alkaline land and a preparation method of the improved fertilizer. The improved fertilizer for the saline and alkaline land is prepared from the following raw materials in parts by weight: 25-28 parts of maleic anhydride, 15-20 parts of citric acid, 20-30 parts of calcium superphosphate, 10-12 parts of a sodium ion adsorbent, 2-4 parts of a microbial agent, 25-32 parts of fulvic acid, 15-20 parts of a trace element fertilizer, 30-38 parts of a chicken manure fermentation fertilizer, 20-35 parts of peat, 3-5 parts of perlite, 5-8 parts of vermiculite and 20-25 parts of smashed straw particles. The invention further provides the preparation method of the improved fertilizer for the saline and alkaline land. According to the improved fertilizer for the saline and alkaline land, various soil improving measures can be synthesized, effects of reducing salt and alkali for the saline and alkaline land are good, the water content of the soil is high, the water retention property and the fertilizer retention property of the soil are good, besides, the survival rate of planted plants is high, and virtuous cycle of the soil of the saline and alkaline land is realized.

The invention discloses feed additive for improving cad pig growth performance and mixed batch. The feed additive comprises following ingredients by parts of weight: 23 to 25 of pericarpium citri reticulatae, 23 to 26 of hawthorn, 27 to 35 malt, 4 to 8 Chinese rhubarb, 15 to 23 Chinese yam, 0.001 to 0,002 Vb12, 9 to 11 chelate iron and 80 to 120 sodium butyrate. The additive is scientific and reasonable in proportion, can improve cad pig growth performance, improves feed conversion and increases hemoglobin content in blood. Fermented soybean meal containing active small peptide can be absorbed and utilized by intestinal tracts easily. The Chinese herb medicine mainly has the function of regulating qi, tonifying spleen and nourishing the stomach. The sodium butyrate can repair small intestine choria of pigs, increases recess depth, reduces potential of hydrogen (pH) in intestinal tracts and prevents harmful bacteria from breeding.

The invention discloses a high-solid terrace coating, a preparation method and application thereof. The coating is prepared from the following raw materials in percentage by weight: 50 to 55 percent of organosilicone modified epoxy resin; 15 to 30 percent of aliphatic amino resin, 4 to 10 percent of plasticizer, 5 to 10 percent of TiO2, 5 to 15 percent of pigment and filler, 4 to 5 percent of reactive diluent, 0.5 to 1.0 percent of defoaming agent, 0.5 to 1.0 percent of dispersant, and 0.2 to 0.5 percent of flatting agent 354. Experimental research shows that the high-solid terrace coating has good corrosion-resistant properties such as acid resistance and alkaline resistance as well as stronger toughness and mechanical property, no volatile solvent exists and the pigment and filler have small consumption in the raw materials of the high-solid terrace coating, and the high-solid terrace coating is an environment-friendly, nontoxic and good terrace coating. The preparation method of the coating has strong maneuverability, high production efficiency and low energy consumption, ensures that finished products obtained through the preparation have high qualification rate, and can realize industrialized large scale production.

The invention discloses a nanomaterial formula for use in stainless steel precision polishing and a preparation process thereof, and belongs to the technical field of high-molecular materials. The nanomaterial formula is prepared from the following components in parts by mass: 50 to 90 parts of nanometer flaky alumina polishing powder, 50 to 90 parts of cerium oxide-silicon oxide compound polishing powder, 0.05 to 2 parts of polishing accelerant, 0.05 to 3 parts of polishing agent, 0.05 to 2 parts of PH regulator, 0.05 to 1 part of corrosion inhibitor, 0.01 to 0.1 part of stabilizer, 0.05 to 0.5 part of chelating agent, and the balance of deionized water. According to a stainless steel precision polishing nanomaterial and a preparation method thereof, the advantages of the nano-flaky alumina, spherical cerium oxide and nano-silicone oxide are combined in the nanomaterial; a flaky material and a spherical material are combined scientifically in a scientific and reasonable mixture ratio, so that the removing rate of the nanomaterial specific to stainless steel in a stainless steel polishing process is increased, and meanwhile a steel material can have a mirror surface. Moreover, the polishing powder used in the preparation process is easy in preparation method, has high stability, is relatively low in cost, and does not cause environmental pollution or equipment corrosion.

The invention discloses water-soluble PU nubuck low-temperature foamex for synthetic leather, prepared by the following raw materials in percentage by weight: 30-40 percent of water-soluble polyurethane, 40-50 percent of water, 2-10 percent of low-temperature nubuck foam powder, 2-5 percent of organosilicon levelling agent, 2-5 percent of organosilicon antifoaming agent and 0.5-2 percent of water-soluble polyurethane thickener. The mixture ratio of each component of the water-soluble PU nubuck low-temperature foamex for synthetic leather is scientific and reasonable, and the components mutually coordinate and jointly act. The nubuck low-temperature foamex has the advantages of good film reforming property and firm adhesion, and coating is resistant to solvent, cold, hydrolysis and thermalageing. The original effect of the leather surface of a finished product prepared from the water-soluble PU nubuck low-temperature foamex can not be influenced; after the leather surface is treated bythe foamex, low-temperature foaming is carried out to produce nubuck leather, and therefore, the effect of the leather surface is unique; moreover, the synthetic leather has exquisite texture, good air permeability and excellent resultant effect of hand feeling, water proofing, adhesion and the like.

The invention relates to a method for preparing dairy cow feed by microbial fermentation, which comprises the following steps of: performing primary culturing on yeast and aspergillus niger, mixing, and performing secondary culturing; fermenting a feed substrate according to a specific ratio, wherein the substrate is prepared by mixing 1 to 3 weight parts of bean pulp, 8 to 10 weight parts of cotton dregs, 6 to 15 weight parts of alcohol meal, 7.5 to 15 weight parts of maize, 25 to 35 weight parts of maize fiber feed, 4 to 8 weight parts of maize peel, 15 to 22 weight parts of bran and 6 to 10 weight parts of ammonium sulfate; and after fermenting, drying and crushing to obtain a feed finished product. The invention also provides dairy cow feed prepared according to the method, which has high crude protein content.

The invention discloses a halogen-free low-smoke flame retardant double-layer insulating outer layer material for an area-1 cable of an AP1000 nuclear power station and a preparation method thereof, belonging to the technical field of cables. The material comprises a base body consisting of ethylene propylene diene monomer, ethylene propylene monomer and ethylene vinyl acetate copolymer rubber, a halogen-free flame retardant smoke suppression system consisting of magnesium hydroxide, aluminum hydroxide, zinc borate pentahydrate, microcapsule-coated ammonium polyphosphate and siloxane, an anti-radiation system consisting of nano cerium dioxide and lead monoxide, a vulcanization system consisting of 98% bis(tert-butylperoxyisopropyl)benzene and N,N'-m-phenylene dimaleimide, a protection system consisting of 2-mercapto benzimidazole zinc salt, para, para'-diisopropylphenyl diphenylamine and nano zinc oxide, a coupling agent composed of vinyltri(beta-methoxyethyoxy)silane, and a lubricating and softening system consisting of stearic acid and microcrystalline wax. The material disclosed by the invention has the advantages of good radiation resistance, excellent mechanical properties and good electrical insulation properties; and the service life of the material reaches 60 years.

The invention discloses a low-viscosity high-early-strength polyurethane repair material for high speed railway slab ballastless track filling layer open joint repair. The repair material consists of two parts, namely a part A and a part B, wherein the part A consists of the following raw materials in parts by mass: 100 parts of isocyanate and prepolymers thereof; the part B consists of the following raw materials in parts by mass: 60-80 parts of reactive hydrogen oligomer, 40-70 parts of a plasticizer, 0.5-2 parts of a defoaming agent and 0.1-1 part of an anti-aging agent; and the volume ratio of the part A to the part B is 1:1. The polyurethane open joint repair material has the advantages of low viscosity, high curing speed, high mechanical strength, high adhesive strength, high toughness and excellent durability, can meet the requirements on rapid construction in skylight time and instant traffic service after repair and can be used for rapid maintenance of the operating high speed railway slab ballastless track structure.

The invention discloses alkyd resin for amino baking paint and a preparation method thereof. The alkyd resin for amino baking paint is prepared from the following components: 10 to 15 parts of dry or half-dry vegetable oil acid, 10 to 15 parts of triatomic alcohol with side chains, 5 to 10 parts of dihydric alcohol with side chains, 20 to 30 parts of phthalic anhydride, 1 to 3 parts of adipic acid, 0.05 to 0.2 part of esterification catalyst, 1 to 5 parts of dimethylbenzene, and 30 to 40 parts of organic solvent. The compositions and the proportions of the raw materials are screened through a lot of experiments, the component proportion is scientific and reasonable, and the alkyd resin for the amino baking paint has good flexibility, shock resistance, rigidity and weather resistance, and is wide in application range. The preparation method of the alkyd resin for amino baking paint is low in production cost, high in preparation efficiency, reasonable in whole process design, strong in operability and easy to implement.

The invention discloses an electrolytic solution used for molybdenum gate screen electrolytic polishing and a preparation method thereof, and application thereof to the molybdenum gate screen electrolytic polishing process. The electrolytic solution consists of the following raw materials: 400 to 450 ml of phosphoric acid, 150 to 200 ml of sulfuric acid, 40 to 60 g of nickel sulfate and 150 to 200 ml of water. Experiment researches show that each ingredient of the electrolytic solution has scientific and reasonable proportion, and can be perfectly used for the electrolytic polishing process of molybdenum gate screens and the like. The molybdenum gate screen electrolytic polishing method of the invention has the advantages of strong operability and good electrolytic polishing effect, and can perfectly remove the burr on the surface of the molybdenum gate screens particularly under the preferable process parameter conditions such as the electrolytic voltage, the time, the temperature and the like, so the quality of the molybdenum gate screens can be improved, the striking rate is obviously reduced after the molybdenum gate screens are assembled to traveling wave tubes, and the performance of the traveling wave tubes is improved.

The invention discloses a method for determining the steel ball ratio based on grinding kinetics. The influence of the raw ore property on grinding work is indirectly reflected mainly by means of thegrinding kinetic parameter K values and the grinding kinetic parameter m values; by calculating the K values and the m values, the optimal steel ball diameter is determined, and finally the steel ballratio is obtained; and through industrial application, it is shown that in grinding products, the content of the products with the coarse grade is decreased by about five percentage points, the content of the products with the over-crushed grain size grade is decreased by about one percentage point, the content of the products with the intermediate easily-separated grain-grade is increased by about nine percentage points, the recycling rate is increased by about two percentage points, the unit steel consumption is decreased by about 10%, and the unit electricity consumption is decreased by about 6%. The method is practicable and high in applicability; the steel ball ratio can be calculated aiming at different types of ores; and in the actual application of a ball grinding mill, the treatment capacity of the ball grinding mill is increased, the grain-size composition of the obtained grinding products is more reasonable, and thus the flotation index is improved.