114results about How to "Uniform void" patented technology

The invention discloses a loose tobacco filling method for a bulk curing barn, which comprises the following steps: firstly, manufacturing fixed square bars, a loose tobacco air-distributing partition board and metal contact pins, arranging a tobacco filling bracket and a fixed groove in the bulk curing barn, horizontally placing the air-distributing partition board on the tobacco filling bracket in the curing barn, and inserting the fixed square bars into the fixed groove; and loosing bundled tobacco leaves before tobacco filling, stacking the loose tobacco leaves with leaf tips upward and leaf bases downward, filling the fresh tobacco leaves into two fixed square bars tidily, then inserting the contact pins into holes of the fixed square bars to fix the tobacco leaves, and curing the tobacco leaves after the curing barn is fully filled with the tobacco leaves. The method has the following advantages: (1) the tobacco filling amount is large and is increased by 30 percent compared with a rod hanging method and increased by 10 percent compared with a loose tobacco stacking method, and the utilization rate of the curing barn is high; (2) the method saves labor and energy, saves about 70 percent of labor, and reduces coal and electricity consumption by 20 percent; (3) the method fills the tobacco tidily and reserves even gaps for the tobacco leaf bases, so the method is favorable for discharging moisture and prevent the tobacco leaves form smoothening and not stretching, and the method is easy to control the curing operation; (4) the structure is simple, and the material cost is reduced by 60 percent; and (5) the bulk curing barn is convenient to load and unload.

The invention discloses a preparation method of a chitosan/polyvinyl alcohol sponge dressing containing nano-silver. The invention relates to an antibacterial dressing for therapy of trauma, and the chitosan/polyvinyl alcohol sponge dressing containing the nano-silver is prepared by adding nano-silver/polyvinyl alcohol solution and polyvinyl alcohol/chitosan blend solution. The obtained dressing has good biocompatibility and hemostatic and antibacterial effects, and can promote the wound healing; the product can accelerate the wound healing, release nano-silver particles in a sustained manner, be acted on regenerated bacteria constantly, have the lasting and high-efficient sterilization characteristics and avoid the drug resistance during the wound treatment process; the research on the toxic effect of the material to mouse fibroblasts shows that the product has no obvious toxicity to the cells and has the effect of promoting the growth of the cells; and preparation method has simple process equipment and low price of experimental raw materials and is conductive to industrialization.

The invention discloses a method for preparing a hierarchical porous TiO2/quantum dot composite material. The diameter of a hierarchical porous TiO2 particle is 5-500 nm, the material is a hierarchical porous material, the diameter of a quantum dot is 1-20 nm, and quantum dots are uniformly distributed on the surfaces of hierarchical porous TiO2 particles. According to the invention, the hierarchical porous TiO2/quantum dot composite material is prepared from a vacuum nanometer pouring method step by step, and the method includes the following steps: firstly preparing different quantum dot precursor solutions, weighing a certain amount of hierarchical porous TiO2 powder, adding the hierarchical porous TiO2 powder in the quantum dot precursor solutions in steps, pouring and adsorbing under a vacuum state, then drying and roasting to obtain the hierarchical porous TiO2/quantum dot composite material. The method reduces the synthesis cost of the material and has a simple process, in the prepared material, the quantum dots are uniformly distributed on the surfaces of TiO2 particles, and the material has a hierarchical porous structure and has great significance in the field of optoelectronic materials and photocatalytic materials etc.

The embodiment of the invention discloses a carbon nano tube surface loaded nano cobaltosic oxide composite material and a preparation method thereof. The preparation method comprises the following steps: deionized water and DMF are weighed according to a ratio of 1:1 to 1:9 to obtain a mixed solvent; purified carbon nano tube and the mixed solvent are weighed according to the compounding concentration of 0.1-1g/L, and ultrasonic processing is performed for 10-60min; cobalt(II) acetate tetrahydrate of which the concentration is 10-60g/L relative to carbon nano tube dispersion liquid is weighed, and cobalt(II) acetate tetrahydrate is dispersed in the carbon nano tube dispersion liquid and stirred evenly; the obtained mixed solution is put in a hydrothermal tank with a tetrafluoroethylene liner and then cooled along with a furnace; after the solution is cooled to room temperature, black deposits are cleaned by a centrifuge; and baking is performed until a sample is dried. Co3O4 particles of the carbon nano tube surface loaded nano cobaltosic oxide composite material prepared by the method are cubic and uniform in size, have a side length smaller than 7nm, and are uniformly distributed on the surface of the carbon nano tube.

The invention discloses a production process of frozen and dried tofu. The production process comprises the steps of selecting materials, soaking, pulping, carrying out centrifugal filtering, continuously heating the pulp, curdling, pressing and forming, steaming and forming, freezing, curing, expanding and softening, and packaging and the like. The frozen and dried tofu prepared by the production process is good in water regaining characteristic, fine in structure and uniform in voids; after water regaining, a product is expanded and softened, is good in toughness and unique in flavor, can be used as an auxiliary material of chaffy dish, also can be used as a main material in fried dish, soup dish and cooked dish, is a convenient non-staple food and is long in quality guarantee period and convenient for transportation and storage.

The invention discloses a preparation method of a composite polymer electrolyte membrane. The preparation method comprises the following steps: dissolving a polymer matrix in a solvent, then adding nanometer oxide, carrying out ultrasonic dispersion for 15-60 minutes while stirring at the temperature of 25-45 DEG C, and then stirring for 3-6h at the temperature of 25-45 DEG C to obtain a homogeneous system; then adding first lithium salt into the homogeneous system, further stirring for 16-24h, and drying for 12-24h to obtain a membrane liquid; and finally, carrying out membrane preparation on the membrane liquid to obtain the composite polymer electrolyte membrane. When or before the composite polymer electrolyte membrane is mounted in a battery, an electrolyte solution containing second lithium salt is added to form a mode of mixed lithium salt. According to the preparation method disclosed by the invention, the composite polymer electrolyte membrane is good in interfacial properties and electrochemical properties, is nonflammable, can not leak and is simple in preparation process, wide in raw material source, excellent in interfacial compatibility and good in electrochemical stability window.

A polymer solution (21) is prepared by dissolving poly-.ε.-caprolactone and amphipathic polyacrylamide in an organic solvent. The polymer solution (21) is cast from a casting die (25) onto a casting belt (26) to form a casting film (40). Air (35) from a blowing and suctioning device (34) is sent to the casting film (40) to generate droplets (44). The relative speed of drying air (37) to the moving speed of the casting belt (26) is adjusted at 5 m/min in parallel flow. The water in the drying air (37) is condensed in the casting film (40) to form the droplets (44). The droplets (44) are evaporated after evaporating the organic solvent in the casting film (40), so that a honeycomb-structure film (12) can be obtained.

The invention discloses a preparation method of coated nut meat, and belongs to the field of food processing. The preparation method comprises the steps: mixing dried fruits with white granulated sugar, crushing by using a crusher, and sieving for later use; mixing and dissolving white granulated sugar, malt syrup and water, and then boiling the mixture to 115-140 DEG C with soft fire; then uniformly coating the surface of the nut meat with the prepared coating liquid, and then uniformly coating the surface of the nut meat with the dried fruit particles and seasoning powder; and finally, drying the nut meat wrapped with the coating liquid to obtain the coated nut meat. Compared with the prior art, the dried fruit granules are uniformly embellished on the surface of the nut meat, so that the appearance of the nut meat can be improved, the appearance of the nut meat is exquisite, the dried fruit granules are endowed with the flavor of the nut meat, the flavor of the nut meat is richer, and in addition, the problems of granule falling and powder falling of the existing coated nut can be relieved; and secondly, a double-stage temperature baking process is adopted, so that the product is crisp in taste and pleasant in fragrance.

The invention belongs to the field of sand planting and particularly relates to multi-hole planting sand which can be directly used for retaining water and fertilizer and a sand planting structure with the planting sand. The planting sand is a sand ball with a multi-hole structure which is formed by sticking natural sand grains and binder which at least contains hydrophily binder, and a hole which is suitable for adsorbing is formed between the adjacent natural sand grains. According to the planting sand, existing natural sand grains are utilized to form holes through cementation, holes which are suitable for use and enable external beneficial compositions are enabled to be loaded on the surface of the sand ball to be formed between the adjacent sand grains, multi-hole performance of the sand ball is utilized to effectively maintain nutrition fertilizer, fertilizer such as the nutrition compositions which are fertilized in the outside world in a planting process is loaded in the holes which are formed among the sand grains, and therefore a situation that the fertilizer is lost with the loss of water is prevented, and use ratio of the fertilizer is increased.

The invention belongs to the field of sand planting, and particularly relates to a composite sand planting structure containing porous planting sand and nutrient planting sand which are used for planting and have functions of water retention and fertilizer retention. The composite sand planting structure comprises a planting container, the porous planting sand and the nutrient planting sand, wherein the porous planting sand and the nutrient planting sand are laid in the planting container. The porous planting sand is a sand ball in a porous structure, wherein the sand ball is formed by natural sand granules and adhesion agents at least containing hydrophilic adhesives in an adhesive mode, and a pore suitable for adsorption is formed between each two adjacent natural sand granules. The nutrient planting sand comprises the porous planting sand and nutrient membranes wrapping the surface of the porous planting sand. According to the composite sand planting structure, water retention performance and fertilizer retention performance of the porous planting sand and the nutrient planting sand are made use of, the venting planting container performs an assistant function, fertilizer loss is beneficially reduced, and growth of plants is benefited.

The invention discloses an anti-short-circuit AGM partition plate. The anti-short-circuit AGM partition plate is prepared from, by mass, 3%-5% of modified nano-vermiculite powder, 3%-5% of polyoxyethylene, 5%-10% of modified bamboo fibers, 10%-15% of water-soluble polyvinyl alcohol fibers, 5%-10% of polyimide fibers, 30%-35% of high-alkali glass fibers with the diameter ranging from 0.5 micrometer to 0.7 micrometer and the balance high-alkali glass fibers with the diameter ranging from 3 micrometers to 4 micrometers. According to the anti-short-circuit AGM partition plate, a traditional pure glass fiber formula is abandoned, the plate is creatively woven by multiple fibers in a blending mode, the modified bamboo fibers and the polyimide fibers are creatively added especially, the components such as the nano-vermiculite powder and polyoxyethylene are added to serve as auxiliary materials, therefore, the partition plate is high in porosity and uniform in pore, the comprehensive performance is excellent, and the condition that positive electrode lead powder penetrates through the partition plate to a negative electrode to cause a short circuit can be effectively avoided.

The invention discloses an intestinal disease treatment pharmaceutical composition and a preparation method thereof. The intestinal disease treatment pharmaceutical composition comprises, by weight, 100 parts of calcium polycarbophil, 7.5-30 parts of disintegrant, 19-48 parts of stuffing, 0.5-4 parts of lubricant and 2.5-8 parts of propylene glycol. The propylene glycol added into the intestinal disease treatment pharmaceutical composition has function of improving tissue structure of the composition and making gaps among particles more uniform so as to quicken disintegration of the particles in an acid environment. As the intestinal disease treatment pharmaceutical composition is prepared by a way of adding the disintegrant in granulation and mixing the disintegrant after granulation, the intestinal disease treatment pharmaceutical composition tablet has good disintegration effect.

The invention discloses a high-transmittance intelligent liquid crystal dimming film and a preparation method thereof. The preparation method of the high-transmittance intelligent liquid crystal dimming film comprises the following steps: step S1, fully and uniformly stirring urethane acrylate, biphenyl liquid crystal, spacer particles, a photoinitiator, a surfactant and pentaerythritol ester to obtain a mixed solution; step S2, placing the mixed solution between two conductive films, and rolling to form a thin film; step S3, carrying out first-step ultraviolet irradiation polymerization on the film; and step S4, under the condition that an electric field is applied to the thin film, performing second-step ultraviolet irradiation polymerization on the thin film to obtain the high-transmittance intelligent liquid crystal dimming film. The high-transmittance intelligent liquid crystal dimming film has good shielding performance when in an off state, has a good visual effect when in an onstate, and is suitable for being used in occasions needing privacy protection, space permeability, safety defense and light ray adjustability.