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189results about How to "Simple manufacturing method" patented technology

Charcoal-based stable compound fertilizer and preparation method thereof

ActiveCN104193536ASimple manufacturing methodSolve the core problem of effectively combining technology deficienciesClimate change adaptationAgriculture gas emission reductionNutrientChemistry
The invention relates to the field of fertilizers, in particular to a charcoal-based stable compound fertilizer and a preparation method thereof. The charcoal-based stable compound fertilizer comprises the following raw materials: charcoal, nitrogenous substances, phosphorus-containing substances, potassium-containing substances, sticky minerals, a nitrogen transformation inhibition material, enveloping substances and a pelleting adhesive, wherein the enveloping substances comprise humic acid and urea formaldehyde resin. According to the charcoal-based stable compound fertilizer, the raw materials are in synergic matching in a certain ratio, and the requirements of crops can be well met; by mixing the charcoal and the humic acid, the acid-alkali balance, the nutrient adsorption and the sticky adsorption of the charcoal and the humic acid are achieved, a very good compounding effect is achieved, and the problem that the properties of the charcoal are not sufficiently utilized is solved; the charcoal-based stable compound fertilizer can be simply used, the fertilizer utilization rate is effectively increased, the acid soil and the soil structure can be improved, advantages that the fertilization cost in agriculture production is reduced, the yield is increased and the quality of agriculture products is improved are realized, and the preparation method is simple and feasible.
Owner:INST OF AGRI RESOURCES & ENVIRONMENT GUANGDONG ACADEMY OF AGRI SCI

Multifunctional fluorine-containing microsphere as well as preparation method and application thereof

The invention belongs to the field of super-amphiphobic materials, and discloses a multifunctional fluorine-containing microsphere as well as a preparation method and application thereof. The multifunctional fluorine-containing microsphere is prepared through the following steps: an inorganic microsphere is modified through a hydrosulphonyl-containing silane coupling agent, so as to obtain a modified inorganic microsphere; a hydrophilic monomer A, epoxy-containing double-bond monomer B and a fluorine-containing monomer C are triggered through hydrosulphonyl on the modified inorganic microsphere, so that the fluorine-containing microsphere with a multifunctional polymer grafted on the surface is obtained. According to the invention, a random copolymer is grafted on the surface of the inorganic microsphere through a one step method, the structure of the surface-grafting part can be adjusted through feeding ratio of monomers, and the method is a simple and feasible preparation method for the super-amphiphobic materials; in addition, the multifunctional fluorine-containing microsphere can endow base material with super hydrophobicity and oleophobicity, the hydrophobicity and oleophobicity of the surfaces of materials can be adjusted through the number of fluorine atoms; obtained super-amphiphobic surfaces has excellent scrub resistance and corrosion resistance.
Owner:GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI

Preparation method of mesoporous carbon sphere material

The invention provides a preparation method of a mesoporous carbon sphere material. The preparation method comprises the following steps: dissolving polystyrene spheres in water or an organic solvent; under an ultrasonic condition, adding a carbon source into suspension liquid obtained in the step, and continuously carrying out ultrasonic treatment for at least 0.5 hour-6 hours; separating solids; and preparing the mesoporous carbon sphere material by a high-temperature roasting method under an inert atmosphere, wherein a weight ratio of the polystyrene spheres to the carbon source is 1:(50-100), and a volume ratio of the polystyrene spheres to water or the organic solvent is 1:(500-1000). The preparation method is simple and easy to carry out and low in cost, realizes dispersion of a template and polymerization of a carbon source under an ultrasonic condition, is free of heating and stirring, free of an oxidant or a catalyst, time-saving and labor-saving; under protection of inert gases, a carbon precursor is carbonized to obtain hollow mesoporous carbon spheres while the template is removed by high temperature; the template is removed without extra steps, and therefore, the preparation method is simple and easy to carry out, and avoids pollution at the same time.
Owner:SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI

Brightness enhancement film having blue light resistance effect and manufacturing method thereof

The invention discloses a brightness enhancement film having a blue light resistance effect and a manufacturing method thereof. The brightness enhancement film provides a brightness enhancement effect, and, at the same time, the brightness enhancement film can obstruct and absorb short-wavelength blue light and reduce damage of blue light, which is emitted by a backlight module, on user's eyes. On a transparent substrate material, a blue light resistance layer is coated and formed on a substrate surface in a micro concave roller coating manner; then coating is performed on the substrate surface to form a prism structure layer, or coating is performed on a surface of the blue light resistance layer to form a prism structure layer; and the prism structure layer firstly performing the coating and gluing adopting a three-roller type coating system, and then the prism structure layer is formed by pattern roller transfer printing of a structure molding system and via UV light source curing. The brightness enhancement film provides an axial brightness gain, and, at the same time, the brightness enhancement film can effectively absorb the short-wavelength blue light emitted by a backlight source and reduce the damage of the liquid crystal display short-wavelength blue light on the user's eyes.
Owner:NALI OPTICAL MATERIAL DONGGUAN

Photovoltaic solar cell and method for producing a photovoltaic solar cell

The invention relates to a method for producing a photovoltaic solar cell having a front side designed for coupling in light, comprising the following method steps: A Producing a plurality of cutouts in a semiconductor substrate of a base doping type, B Producing one or more emitter regions of an emitter doping type at least at the front side of the semiconductor substrate, wherein the emitter doping type is opposite to the base doping type, C Applying an electrically insulating insulation layer and D Producing metallic feed through structures in the cutouts, at least one metallic base contact structure at the rear side of the solar cell, which is formed in an electrically conductive manner with the semiconductor substrate in a base doping region, at least one metallic front-side contact structure at the front side of the solar cell, which is formed in an electrically conductive manner with the emitter region at the front side of the semiconductor substrate, and at least one rear-side contact structure at the rear side of the solar cell, which is formed in a manner electrically conductively connected to the feed through contact structure. The invention is characterized in that in method step B and/or a further method step in addition a feed through emitter region of the emitter doping type extending from the front side to the rear side is formed in each case in the semiconductor substrate on the walls of the cutouts, in that in method step C the insulation layer is applied in a manner covering the rear side of the semiconductor substrate, if appropriate further intervening intermediate layers, in that in method step D the rear-side contact structure is applied to the insulation layer, if appropriate to further intermediate layers, in such a way that the rear-side contact structure extends to regions of the semiconductor substrate having base doping and, in these regions, on account of the intervening insulation layer, an electrical insulation is formed between rear-side contact structure and semiconductor substrate, and the base contact structure is applied to the insulation layer, if appropriate to further intermediate layers, in such a way that the base contact structure penetrates through the insulation layer at least in regions, such that an electrically conductive connection is produced between base contact structure and semiconductor substrate. The invention furthermore relates to a photovoltaic solar cell.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV

Composition and preparation method of magnesium-yttrium-calcium compound stabilized zirconia nozzle brick

InactiveCN103936442ASimple manufacturing methodGood thermal shock stabilityPelletizingMagnesium
The invention discloses a composition and a preparation method of a magnesium-yttrium-calcium compound stabilized zirconia nozzle brick and belongs to the technical field of refractory materials. Firstly, an electro-fused zirconia monoclinic micro powder, an electro-fused calcium-yttrium compound stabilized zirconia micro powder, high-purity active magnesium oxide and a high-purity yttrium oxide micro powder are stirred in the presence of a polyvinyl alcohol binding agent until an agglomerate can be formed; secondly, the mixture is pelletized by using a pelletizer; thirdly, according to the shape requirement of the nozzle brick, the pelletized pug is compression-molded on a hydraulic press, and the molded nozzle bricks are put in a dryer at a temperature ranging from 120 to 150 DEG C and dried for 12-24 hours, and then the nozzle bricks are put in a kiln to be sintered at a temperature ranging from 1600 to 1700 DEG C for 6-10 hours so that the volume density of the nozzle is 5.2g/cm<3> and the apparent porosity is less than 10%. The manufacturing method is simple, the formed nozzle bricks have the characteristics of liquid steel erosion resistance, scouring resistance and good thermal shock resistance, and also the characteristics of high production efficiency and low production cost.
Owner:上海宝威陶瓷新材料有限公司
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