17results about How to "No stratification" patented technology

The application relates to a YAG / Yb:YAG / YAG composite laser transparent ceramic and a preparation method thereof. The Yb:YAG water-based ceramic ink comprises mixed powder composed of Al2O3 powder, Y2O3 powder and Yb2O3 powder, the solid content is 20-25 vol%, the mole ratio of Al2O3, Y2O3 and Yb2O3 is 5:3-x:x, and 0 < x <= 0.3; the dispersant content is 0.2-0.8% of the mass of the mixed powder; the pH control agent is used in an amount controlled to adjust the pH of the Yb:YAG water-based ceramic ink to be between 10-11.5 and the pH of the ink is greater than or equal to 9.5 within 24 hours under the conditions of sealing and 20-25 DEG C; the humectant content is 5-20% of the total volume of the Yb:YAG water-based ceramic ink; the binder content is 0.1-0.5% of the mass of the mixed powder; and the sintering aid content is 0.1-0.5% of the mass of the mixed powder.

The invention relates to high-solid-content AlN ceramic slurry for tape casting, a substrate and a preparation method of the substrate, and belongs to the field of ceramic substrates. The ceramic slurry is prepared from the following components in percentage by mass: 60 to 68 weight percent of high-purity AlN powder, 3 to 6 weight percent of dispersing agent, 3 to 5 weight percent of binding agent, 4 to 6 weight percent of plasticizer, 3 to 6 weight percent of sintering aid and 32 to 45 weight percent of solvent, the mass ratio of the plasticizer to the binder ranges from 3: 5 to 4: 5. By regulating and controlling the proportion of the dispersing agent in the AlN ceramic slurry and the solid content of the high-purity AlN powder, the slurry has excellent flowability, dispersity and stability while maintaining high solid content, and is suitable for a tape casting process. The AlN ceramic substrate prepared through sintering is high in density and excellent in heat conductivity, and engineering application can be achieved.

The invention provides a nano-composite anti-seepage coating for goaf sealing and a preparation method and application thereof. The impermeable coating comprises the following components in percentage by mass: 10 to 30 percent of nano silica sol subjected to surface organic modification, 15 to 35 percent of styrene-butadiene latex subjected to pH buffer stabilization, 0.5 to 10 percent of functional nano material subjected to surface activation treatment, 20 to 60 percent of superfine sand and the balance of short fiber, inorganic powder filler and auxiliaries. The method comprises raw material pretreatment; step-by-step gradient blending is performed; and functions are compounded. According to the application, the nano-composite anti-seepage coating is applied to surrounding rock reinforcement, crack plugging or anti-seepage sealing engineering of a coal mine goaf. The slurry has the advantages of being high in deep infiltration capacity, excellent in surface film forming and internal compatibility and stable in performance, an internal infiltration reinforcing layer and a surface sealing layer can be formed at the same time after construction, and an integrated double-layer anti-seepage network is formed.

The present application relates to a kind of antibacterial and anti-adhesion catheter based on intelligent response nanofiber membrane, which is composed of medical polymer catheter substrate, silane coupling agent transition layer grafted on the outer surface of the substrate and nanofunctional fiber membrane layer formed on the outer surface of the transition layer by electrospinning process, the nanofunctional fiber membrane layer is composed of polyvinyl alcohol loaded hyaluronic acid grafted copper-doped carbon dots (CCDH), CCDH takes copper-doped carbon dots as core, and forms core-shell structure by grafting hyaluronic acid on the surface. The present application solves the problem of easy peeling of catheter coating by chemical bonding, and the formed antibacterial and anti-adhesion catheter has very low water contact angle and friction coefficient, not only effectively blocks the initial adhesion of bacteria at the physical level by constructing hydration layer, but also releases copper ions and carbon dots by enzymatic hydrolysis of hyaluronic acid under bacterial infection microenvironment, induces the production of reactive oxygen species to kill bacteria efficiently, and has broad application prospect in reducing the risk of catheter-related urinary tract infection.

This invention discloses a nano-haloysite-based electrolyte filling material and its preparation and application methods. The preparation method includes: mixing and grinding nano-haloysite with graphite; mixing the resulting halloysite-graphite mixture with saturated saline solution and polyacrylamide at low and high speeds, adjusting the pH of the resulting mixture to 6.5–7.5, and then subjecting it to ultrasonic treatment to obtain the electrolyte filling material. The electrolyte filling material obtained by this invention is a stable dispersion system. Compared with kaolinite fillers, its stability is significantly improved, and it does not exhibit stratification over a longer application period. The resulting electrode has a more stable potential difference.

The application relates to the field of advanced structural ceramics, and particularly discloses a gel injection molding method for preparing high-performance silicon nitride ceramics and a preparation method thereof. Raw materials include beta-SiN submicron powder 75 parts, YO submicron powder 8 parts, TiC submicron powder 5 parts, AlO superfine powder 5 parts, ZrO submicron powder 2 parts and wollastonite 5 parts in terms of mass ratio, a complex whisker regulator and an entry liquid are used, and ceramics are prepared through gel injection molding, dehydration, degreasing and gas pressure sintering. The grain morphology and interface combination are optimized through the whisker regulator, the slurry dispersion and the green body uniformity are improved through the entry liquid, and the product has a density greater than or equal to 99%, a Vickers hardness greater than or equal to 1700HV and a bending strength greater than or equal to 930MPa through 1700-1850 DEG C. gas pressure sintering, and the product has high density, high hardness, high toughness, wear resistance, corrosion resistance and long service life.

This invention relates to the field of electronic paste preparation technology, and discloses a low sheet resistance tungsten-copper electronic paste and its preparation method, comprising the following steps: Step 1, preparing tungsten-copper composite powder: spherical tungsten powder with a diameter of 1-10 μm and copper powder with a size of 1-3 μm are mixed by mechanical mixing, with a tungsten to copper weight ratio of 3:1-6:1. Before mixing, the copper powder needs to undergo graphene coating pretreatment; Step 2, preparing an inorganic binder: the inorganic binder includes, but is not limited to, the following components: glass powder, CuO, TiO2, La2O3, Pu6O11; Step 3, preparing an organic carrier: the organic carrier includes a solvent, an organic binder, and a thickener; Step 4, preparing the tungsten-copper paste. The tungsten-copper paste of this invention has widely available raw materials, a simple preparation process, and is suitable for mass production. Although graphene, a high-priced material, is added, the amount added is small and the performance is particularly excellent, making the cost of the tungsten-copper paste of this invention far lower than that of similar foreign products, resulting in a very high cost-performance ratio.

The present application belongs to the technical field of material chemistry and environmental governance, and discloses a plant decomposition type deodorant formula and a configuration method. In view of the defects of the existing deodorization technology, such as secondary pollution, slow effect, only masking odor, insufficient product stability and the like, the present application uses tea polyphenol extract, yucca extract, grape seed extract, various plant essential oils and other pure natural plant extracts as raw materials, does not contain chemical synthetic additives, and is prepared through a standardized process of precise control of constant temperature environment, grading stirring speed, step-by-step feeding and reaction time. The deodorant can target decomposition of various foul-smelling molecules, has the effects of bacteriostasis and oxidation resistance, is completely deodorized, has strong product stability, is safe and non-irritating, has no secondary pollution, and can be widely applied to foul odor treatment in multiple scenes such as livestock breeding, garbage treatment, sewage treatment, public environment and the like.

This invention discloses an aqueous phase preparation tank for emulsion explosives, comprising a mixing tank and a recovery tank. The mixing tank has a lid, and a gas pipe is vertically inserted into the lid. Several identical aeration heads are installed on the gas pipe inside the mixing tank. An inlet pipe and an outlet pipe are installed at the upper and lower ends of the mixing tank, respectively. A conduit is connected to the lid, and the outlet end of the conduit is connected to the recovery tank and extends into its lower interior. A second liquid outlet pipe is vertically installed inside the recovery tank. A pressure gauge is installed on the lid. Gas valves are installed on both the connecting pipe and the conduit. This invention relates to the field of aqueous phase preparation technology. Steam with a certain pressure and temperature is introduced into the mixing tank using a pump, a gas pipe, and several aeration heads. The steam's turbulence and foaming action stirs, mixes, and heats the materials in the mixing tank, resulting in uniform mixing in all parts.

This invention relates to the field of biofertilizer technology, specifically disclosing a microalgae biofertilizer with soil remediation function and its preparation method. The preparation method includes: domesticating and culturing *Scenedesmus obliquus* liquid, *Cyanobacterium cyanobacteria* liquid, and *Monoflagellates* liquid with γ-aminobutyric acid-induced activation solution, and co-culturing them with *Bacillus polymyxa* and *Bacillus megaterium* to obtain a bioslurry; encapsulating the bioslurry with sodium alginate-carboxymethyl chitosan to obtain bioactive microspheres; impregnating corn straw with magnesium-iron salt precursors and pyrolyzing it under nitrogen to obtain modified biochar loaded with magnesium oxide and iron oxide, and compounding it with potassium humate to obtain a biochar suspension; and mixing the bioactive microspheres, biochar suspension, xanthan gum, zeolite, ammonium polyphosphate, potassium nitrate, zinc sulfate, potassium silicate, and deionized water evenly to obtain the microalgae biofertilizer with soil remediation function.

The application provides a rock asphalt modified asphalt based on a wet activation process and a preparation method thereof, and relates to the field of asphalt.The rock asphalt modified asphalt comprises the following raw materials in parts by weight: 82-90 parts of base asphalt, 9-17 parts of pretreated buton rock asphalt and 0.3-1.2 parts of a composite activation additive; the composite activation additive is composed of oleic acid amide and terpene resin in a mass ratio of 2.5-3.5:0.8-1.2; the modified asphalt is prepared by using the wet activation process.The modified asphalt prepared by the application has low cost and high performance, can be better applied in road engineering, can realize high-temperature anti-rutting and low-temperature anti-cracking high-quality road performance, and can also achieve a low cost.

This invention relates to the field of building waterproofing materials technology, and discloses a composition for a non-asphalt-based waterproofing adhesive, a non-asphalt-based waterproofing adhesive and its preparation method, a waterproof membrane, and its application. The composition consists of a main agent and additives. The main agent includes a rubber compound, petroleum resin, plasticizer, silanizing agent, and filler. Based on the total mass of the composition, the content of the rubber compound is 15-25 wt%, the content of the petroleum resin is 35-45 wt%, the content of the plasticizer is 10-15 wt%, the content of the silanizing agent is 0.5-2 wt%, and the content of the filler is 15-20 wt%. The rubber compound is a combination of liquid polysulfide rubber and liquid butyl rubber in a mass ratio of 1:2-3. The waterproof membrane provided by this invention has excellent adhesion, weather resistance, and waterproofing performance.

This invention discloses a highly stable fusidic acid cream and its preparation method, belonging to the field of pharmaceutical formulations. The fusidic acid cream provided by this invention comprises fusidic acid, propylene glycol, an oil phase component, an aqueous phase component, an antioxidant, and an amphiphilic lipid composition; wherein the oil phase component comprises white petrolatum, mineral oil, cetyl alcohol, glyceryl monooleate, phytanetriol, and phospholipid-PEG. The preparation method involves drying and pretreating the amphiphilic lipids, mixing the aqueous phase and the drug-loaded oil phase under nitrogen protection, and then sequentially subjecting them to high-speed shear emulsification and high-pressure homogenization. Finally, phospholipid-PEG is added to prepare the fusidic acid cream. This invention, through a unique amphiphilic lipid combination and stepwise process, significantly improves the dispersion uniformity and chemical stability of fusidic acid. The resulting cream has controllable particle size, is not prone to agglomeration, and exhibits good storage stability, making it suitable for industrial production.

The utility model belongs to the technical field of material mixing equipment, and particularly relates to a disc type material mixing mechanism and a material mixing system thereof, the material mixing mechanism comprises a disc base used for material mixing and at least two bulge groups uniformly arranged on the disc base, the disc base drives the bulge groups to rotate through rotating motion, and the bulge groups are arranged on the disc base. And when the flow line of the non-steady flow vortex motion is in contact with the other convex group, the motion direction of the non-steady flow vortex motion is steered, so that the non-steady flow vortex motion can be subjected to a plurality of non-steady flow vortex motions positioned on different horizontal planes and / or vertical planes. The disc type mixing mechanism disclosed by the utility model is suitable for mixing materials with different chemical and physical properties, is good in mixing uniformity and stability and free from layering phenomenon, and can shorten the mixing time and improve the production efficiency under the action of the bulge groups.

The invention relates to the technical field of pyrite mining, in particular to a composite flotation agent for pyrite mining and a preparation method and application thereof.The composite flotation agent is prepared from, by mass, 40-60 parts of N, N-diethyldithiocarbamate, 20-30 parts of sodium isoamyl xanthate, 5-10 parts of imidazole functionalized polystyrene nanoparticles, 8-15 parts of water glass, 2-5 parts of methyl isobutyl carbinol and 10-20 parts of deionized water. The prepared composite flotation agent is synergistic in component, high in selectivity, resistant to slime covering, low in VOCs, stable and efficient; the method is controllable in process, uniform in dispersion, high in product stability and suitable for industrial production; the method can adapt to complex sulphide ore mining, the grade and the recovery rate of pyrite concentrate are remarkably improved, and green and efficient separation is achieved.

The invention relates to the technical field of cosmetics, in particular to an oil-in-water type sunscreen cosmetic and a preparation method thereof.The oil-in-water type sunscreen cosmetic is prepared from a water-phase composition, an oil-phase composition, a sunscreen composition and a sunscreen agent; the water-phase composition comprises a water-soluble thickening agent, a humectant and water; the oil phase composition comprises solid wax; the sunscreen composition comprises a nonionic emulsifier; the humectant comprises glycerol; the water-soluble thickening agent is prepared from at least one of chondrus crispus, stearate, xanthan gum, carbomer, cellulose gum, agar and an acrylic acid (ester) / C10-30 alkanol acrylate cross-linked polymer. According to the invention, a system capable of stably encapsulating the oil-soluble sun-screening agent and the water-soluble active skin-care component at the same time is constructed through a specific formula of the water-soluble thickening agent, the humectant, the nonionic emulsifier and the like, and the product has high sun-screening property, refreshing skin feeling and excellent stability; the technical problem that portability and functionality of a traditional sunscreen product cannot be achieved at the same time is solved.

The application discloses a vapor sensation essence and a preparation method and application thereof. The vapor sensation essence comprises a vapor sensation enhancer and a solvent, wherein the vapor sensation enhancer comprises at least one of propylene carbonate, dimethyl carbonate and gamma-butyrolactone. The vapor sensation essence creatively adopts the vapor sensation enhancer, can produce obvious expansion impact sensation, has long-lasting and persistent vapor sensation, has good compatibility with base oil of an atomized base, has no stratification phenomenon, has safety meeting food-grade standards, can realize the effect of synergistically improving smoking experience of aroma and vapor sensation, and improves user experience.