33results about How to "No obvious stratification" patented technology

The invention discloses a milk beverage stabilizing agent, an acid milk beverage using the same and a preparation method in the technical field of food. The milk beverage stabilizing agent comprises the following components in percentage by mass: 50%-70% of carboxymethyl curdlan, 10%-30% of Arabic gum, 10%-20% of propylene glycol alginate and 5%-10% of guar gum. The acid milk beverage comprises the following components in percentage by mass: 1%-8% of whole milk powder or defatted milk powder, 0.2%-1% of stabilizing agent, 10%-20% of white granulated sugar and the balance of water. The preparation method for the acid milk beverage comprises the following steps: taking 35 to 55 DEG C water, adding the white granulated sugar and the stabilizing agent into the water in turn, and stirring the mixture till the white granulated sugar and the stabilizing agent are dissolved to obtain solution A; taking the 35 to 55 DEG C water, adding the whole milk powder or the defatted milk powder into the water, and stirring the mixture till the whole milk powder or the defatted milk powder is dissolved to obtain solution B; and mixing the solution A and the solution B, cooling the solution to between 15 and 25 DEG C, adjusting pH to 4 by using citric acid solution, and heating, homogenizing and pasteurizing the solution to obtain the acid milk beverage. Because the carboxymethyl curdlan and the Arabic gum are introduced into the stabilizing agent, the stabilizing agent has good emulsifying effect and acid resistance, and can effectively improve the stability of a product.

The invention discloses high-strength and high-durability lightweight aggregate concrete and a preparation method thereof, and relates to lightweight aggregate concrete. Each cubic meter of concrete comprises the following raw materials by weight: 200-380kg of cement, 150-250kg of silica fume, 650-750kg of 5-15mm ceramsite, 180-240kg of water and 4-10kg of a polycarboxylate superplasticizer. The preparation method comprises the following steps: firstly, soaking shale-sintered lightweight ceramisite in saturated limewater, fishing out ceramisite floating on the surface, and reserving the settled ceramisite for later use; respectively weighing the settled ceramisite, the silica fume, the cement, the polycarboxylate superplasticizer and water according to the ratio for later use; adding the settled ceramisite to a stirrer to stir in advance; adding the cement and the silica fume to the stirrer to stir in advance, and then stopping the stirrer; starting the stirrer; firstly adding water which accounts for 1/3 of the total amount to the running stirrer, stirring, and simultaneously adding the rest water and the polycarboxylate superplasticizer to the specified amount; and further stirring until mixing evenly, so as to obtain the high-strength and high-durability lightweight aggregate concrete.

The invention relates to a profile modification agent for an epoxy resin emulsion, which is used for solving the problem of poor selectivity of the conventional organic resin plugging agent. The profile modification agent for an acrylic monomer grafted epoxy resin emulsion is obtained by polymerizing epoxy resin with an acrylic monomer, neutralizing with N,N-dimethylethanolamine and emulsifying with deionized water, wherein the concentration of the epoxy resin in an emulsion system is 300-600 mg/L, the concentration of the N,N-dimethylethanolamine is 3,000-5,000 mg/L, and the crosslinking ratio is 10:1 or 20:1 or 40:1. When the profile modification agent is in use, a large quantity of gel particles of the emulsion enter large pore canals while a small quantity of or no gel particle enterssmall pore canals, the resistance coefficients of the large pore canals are increased, and the resistance coefficients of the small pore canals are increased at a lower frequency in comparison to thelarge pore canals, so that selective plugging can be realized; and moreover, the profile modification agent has high temperature resistance and high salt resistance, and the emulsion system is stable.

The invention relates to the technical field of inorganic materials, in particular to a method for preparing graphene by an arc discharge method. A method for preparing graphene by an arc discharge method, comprising the following steps: (1) preparation of graphene; (2) preparation of graphene conductive ink. The graphene prepared by the arc discharge method in the invention has the advantages of high yield, high purity, good crystallinity and the like. Graphene is used as a conductive filler to synthesize graphene conductive ink. The prepared conductive ink has good dispersion, no obvious layering, high temperature resistance, and excellent electrical conductivity. It has good flexibility and can be applied to flexible and foldable electronic devices, which greatly broadens its application field.

The invention relates to a navigation device in an orthopedics department and a preparation method of the navigation device. A first movable arm and a second movable arm of the navigation device in the orthopedics department are made of modified polyphenylene oxide plastic which comprises polyphenyl ether, polybutylene, HIPS, LDPE, titanium dioxide, an interfacial modifying agent, a toughening modifying agent, glass fiber, antioxygen and a toner. The preparation method comprises the steps of firstly, conducting forced air drying on polyphenyl ether, polybutylene and HIPS, adding raw materials into a charging barrel after the charging barrel in a high-speed injection molding machine is heated, heating the raw materials into the molten state, then injecting the raw materials to a preheated first movable arm mold and a preheated second movable arm mold in twice through nozzles of a hot flow pass, obtaining the first movable arm and the second movable arm through pressure maintaining, cooling forming and mold opening, and assembling the first movable arm and the second movable arm with other components to form the navigation device in the orthopedics department. The obtained navigation device in the orthopedics department is compact and perfect in whole structure, good in toughness and light in total mass, and the strength of the movable arms is high.

The invention discloses a grapefruit essential oil gel and a preparation method thereof. The grapefruit essential oil gel comprises the following components: 1,3-propylene glycol, G260, glycerol, SEPIMAX ZEN, Carbomer 940, methylparaben, water, HA, Beta-glucosan, Tridermol Hydrant, PC2000, SymCalmin, BN, hydroxamic acid, menthyl lactate, CO40, grapefruit essential oil and brilliant blue. The grapefruit essential oil gel disclosed by the invention looks transparent, is in light blue, is beautiful and fashionable and contains a large amount of moistening grease; face is cool and not sticky afterthe grapefruit essential oil gel is used; the grapefruit essential oil gel has excellent whitening and moisturizing effects, is capable of boosting skin metabolism, is long-acting and moisturizing and is capable of keeping skin moisturizing, smooth and elastic; all the subjects have no allergy or symptoms of skin itching, pricking, red and swollen, and the like.

Provide a new preparation method of calamine nitrofurazone pharmaceutical composition, especially the new preparation method of calamine nitrofurazone lotion, the raw materials of described calamine nitrofurazone lotion include calamine, zinc oxide, nitrofurazone, glycerin , sodium carboxymethylcellulose, purified water, characterized in that the method comprises first mixing nitrofurazone, at least a part of sodium carboxymethylcellulose and at least a part of water, and then mixing with the remaining components in the composition A step of. The calamine nitrofurazone lotion prepared by the new preparation method of the invention has the advantages of small sedimentation volume ratio, good uniformity, stable quality, and favorable transdermal absorption.

The invention discloses a composite enzyme preparation, in particular to a composite enzyme preparation for improving feed absorption efficiency. The preparation is mainly synthesized from the following components in parts by mass: 5-15 parts of lipase, 20-30 parts of cellulase, 17-23 parts of mannanase, 8-22 parts of xylanase, 10-25 of protease, 1-5 parts of phytase, 12-20 parts of glucoamylase,20-35 parts of sodium alginate and 20-40 parts of carrageenan. The provided composite enzyme preparation has good water solubility, is dissolved in water to form a stable and uniform liquid state, andhas no obvious layering phenomenon after being stirred fully and mixed uniformly; the loss of activity of composite enzymes during feed processing and feeding can be effectively reduced, the digestion and utilization rate of plant fibers and protein is increased, the feed use rate can be increased, immunity and digestion and absorption capacity of animal bodies can be effectively improved, the disease attacking rate is reduced, and the ecological environment is improved.

The invention relates to the field of polyurethane, in particular to diisocyanate, a polyurethane prepolymer, a preparation method of the polyurethane prepolymer and waterborne polyurethane. The polyurethane prepolymer includes a repeating unit with the structure shown in a formula (II), wherein in the formula (II), the R represents a left residue of a terminal hydroxyl polymer without two terminal hydroxyl groups, the Q represents a left residue of an HDI tripolymer without three -N = C = O or a left residue of an IPDI tripolymer without three -N = C = O, and the n represents the polymerization degree. The waterborne polyurethane is prepared by dispersing the polyurethane prepolymer in water, and the waterborne polyurethane is small in emulsion particle size, high in stability and good in softness after film forming. An experimental result shows that the emulsion particle size of the prepared waterborne polyurethane is 51-91 nm, no obvious stratification phenomenon is produced after a centrifugal test; after film forming, the Shore hardness is 42-53, the tensile strength is 14-19 MPa, and the elongation at break is 630-800%. (shown in the description).

The invention discloses a graphene high-performance environmental-friendly copper sheet strip rolling liquid and a preparation method thereof, and belongs to the technical field of a lubricant. The rolling liquid comprises main components in percentage by weight: 40 to 50% of colleseed oil, 10 to 15% of polyoxyethylene (20) sorbitan tri-oleate, 1 to 2% of oleic acid, 4 to 10% of alcohol, 0.01 to 0.10% of graphene, 0.5 to 2% of sodium hypophosphite, 5 to 10% of triethanolamine and the balance of water. The preparation method of the graphene high-performance environmental-friendly copper sheet strip rolling liquid comprises the following steps: after adding the graphene into the alcohol to carry out ultrasonic processing for a certain time, mixing with the polyoxyethylene (20) sorbitan tri-oleate, the oleic acid and the colleseed oil to obtain an oil-phase mixed liquor; dissolving the sodium hypophosphite and the triethanolamine in the water, adding into the oil-phase mixed liquor, carrying out shearing stirring for a certain time at a certain rotating speed to obtain stock solution of the rolling liquid, and after diluting the stock solution according to a ratio of 1 to 5 to 10, obtaining the rolling liquid which can be used for rolling machining of a copper sheet strip. According to the invention, raw materials are environmental-friendly; the process is simple; the prepared rolling liquid has no toxicity or pungent odor and has an excellent extreme pressure anti-wear property and storage stability.

The invention belongs to the field of gradient ceramic forming, and discloses a gradient ceramic forming device. The device includes a non-aperture mold and a first bracket, a second bracket and a third bracket arranged parallel and opposite in a vertical direction, a conductive carrier is arranged on the first bracket and a conductive carrier is arranged below the third bracket for forming a uniform electrostatic field between the first bracket and the third bracket, the second bracket is provided with a non-hole mold which is externally covered with a heating pad, after ceramic slurry is injected into the non-hole mold, the ceramic slurry is heated by the heating pad so that the weak acid is released from the ester PH modifier after hydrolysis in the ceramic slurry, the weak acid reactswith the curing agent in the ceramic slurry to release high-valence metal positive ions, and the metal positive ions are distributed in the ceramic slurry in a gradient concentration under the actionof an electrostatic field, thereby forming the gradient ceramic. The invention realizes the shaping of gradient ceramics with controllable composition gradient and continuous variation of composition,has simple operation and high shaping efficiency, and is suitable for the preparation of gradient ceramics of various structures and functions.

The invention discloses a pomegranate puree preparation method, which includes adopting mature pomegranates in mid-to-late October in Lintong as raw materials; using artificial pedicle removal; using recycled water to preliminarily clean the surface of pomegranate; after cleaning is completed, sending the pomegranate into a pomegranate peeler through a hoist for peeling treatment; then sending the pomegranate into a beater for pulping after washing is completed; collecting and placing pomegranate peel; when pomegranate pulp is crushed, adding VC with pulp quality of 0.01-0.5% for color protection treatment, and then sending the mixture into a centrifuge for centrifugal treatment; after the centrifugation is completed, adding pomegranate juice into a 201-model filter for cross-flow filtration to obtain clear ruby-red slurry without impurities by ultrafiltration; and acquiring the finished product after homogenization, degassing and sterilization. The preparation method of pomegranate puree ensures the fineness of pulp, uniform texture, no obvious delamination and no other impurities.