167results about How to "Enhanced network structure" patented technology

The invention relates to a method for preparing graphene crosslinked type organic aerogel and carbon aerogel by normal-pressure drying, which takes phenols (P), amines, aldehydes, catalyst and solvent as a reaction system and graphene substances containing active functional groups as a cross-linking agent. The method comprises the steps of: curing to obtain organogel, and then carrying out normal-pressure drying to obtain the organic aerogel; and carrying out pyrolysis on the organic aerogel in the inert atmosphere at the temperature of 500-1600 DEG C to obtain the graphene crosslinked type carbon aerogel. The preparation method of the organic aerogel and the carbon aerogel is simple and rapid in technology; the conventional supercritical drying technology is avoided, and the prepared novel organic aerogel and carbon aerogel materials taking graphene as framework have new performances and wide application prospect; and the industrial production of the carbon aerogel can be expected to be realized.

The invention discloses an ethylene-vinyl acetate copolymer packaging thin film, which is used for packaging solar cell components. The thin film is prepared from the following raw materials in part by weight: 100 parts of an ethylene-vinyl acetate copolymer, 0.1 to 2.0 parts of crosslinking agent, 0.1 to 10.0 parts of aid crosslinking agent and a proper amount of aid. The ethylene-vinyl acetate copolymer contains 25 to 33 percent of vinylacetate, and the ratio of the amount of the aid crosslinking agent and the crosslinking agent is 1:10 to 10:1. In the invention, the introduction of the aid improves the network structure of crosslinked resin, improves crosslinking efficiency, greatly reduces the dosage and residue of the crosslinking agent greatly and avoids aging phenomenon caused by residual crosslinking agent, and the prepared thin film has higher dampness and heat resistance, high ultraviolet resistance, high thermal-oxidative aging resistance and the like and has long service life.

A network plug includes a plug body, two locking bars pivotally mounted in the top wall of the plug body, a jacket coupled to the rear side of the plug body and movable relative to the plug body in axial direction within a limited distance, and a working plate mounted in the jacket and movable with the jacket relative to the plug body to move the locking bars between the locking position to lock the network plug to a network socket, and the unlocking position to unlock the network plug from the network socket.

The invention belongs to the field of polymer composite conductive materials, and discloses a nanocellulose-polypyrrole-polyvinyl alcohol composite conductive hydrogel as well as a preparation method and application thereof. The hydrogel is prepared by adopting the following method: a, preparing nanocellulose; b, polymerizing on the surface layer of the nanocellulose to obtain a nanocellulose-polypyrrole compound; c, adding a cross-linking agent and polyvinyl alcohol in a nanocellulose-polypyrrole compound solution, and stirring to form gel, thus obtaining a finished product. The hydrogel can be used for preparing a flexible conductive material, and has a better application prospect.

The invention discloses a 3D printing material with mosquito-repellent and noctilucent effects as well as application. The 3D printing material is prepared from the following components in parts by weight: 110-145 parts of PLA, 10-20 parts of a mosquito repellent, 5-10 parts of noctilucent powder, 2-8 parts of a light diffusion agent, 10-20 parts of one or more cross-linking agents, 2-5 parts of one or more coupling agents, 10-30 parts of sodium lignin sulfonate, 2-8 parts of one or more nanometer antibacterial agents and 0.1-0.5 part of additives. According to the 3D printing material, the network structure of the 3D printing material is greatly strengthened, the tenacity of 3D printing products is effectively promoted, the degradation rate is high, the antibacterial effect is good, and good auxiliary lighting, identification and mosquito-repellent effects are achieved; the most important thing is that mint flavonoid extracts, rosemary extracts and the like in the mosquito repellent are synergistic with other components while having the mosquito-repellent effect, so that the oxidation resistance, bacteriostatic performance and network structure of the 3D printing material are obviously improved, and the 3D printing material is high in practicability and safety and obvious in significance, and can be widely popularized and applied.

The invention discloses a formula of ultralow temperature glaze. The formula comprises 32-36 parts of calcined borax, 21-23 parts of potash feldspar, 8-15 parts of calcined talcum powder, 6-8 parts of quartz, 8-9 parts of Xinhui powder, 5-8 parts of calcined Xingzi kaoline, 4-7 parts of limestone, 3-8 parts of Suzhou soil, 0.5-1 part of titanium dioxide, 2-6 parts of Zuoyun soil and 5-15 parts of zinc oxide. The invention simultaneously discloses a preparation method of the ultralow temperature glaze. The preparation method comprises the following steps of material preparation, material mixing, wet grinding, glazing, drying and calcining. The ultralow temperature glaze prepared by the formula and the preparation method is used for retouching various porcelain blanks and porcelain bodies; a favorable intermediate layer can be formed after glazing; the ultralow temperature glaze can be favorably combined with the porcelain bodies and has excellent mechanical property, and the bending strength of porcelain is more than 30 percent; meanwhile, the porcelain glaze surface is smooth, is of a pale grey and transparent color and luster, has no defect on the surface and meets the market requirements.

The invention relates to a multi-network type monodispersed polyacrylamide-based polymer gel microsphere and a preparation method thereof. A purpose of the present invention is mainly to solve the problem of insufficient stability of the existing polymer microspheres under high temperature and high salt conditions. According to the technical scheme, the polyacrylamide-based polymer gel microspherecomprises an acrylamide structure unit, an anionic monomer structure unit, a cationic monomer structure unit and a nonionic monomer structure unit, and further comprises a covalent bond cross-linkingagent structure unit, a high-valent metal cross-linking agent structure unit and a stabilizer structure unit, wherein the acrylamide structure unit, the anionic monomer structure unit, the cationic monomer structure unit and the nonionic monomer structure unit form a polymer main chain structure. With the technical scheme, the problem in the prior art is well solved. The product of the present invention can be used for deep profile control in oilfield development.

Drug-loading thermosensitive hydrogel. Raw materials for preparation of the drug-loading thermosensitive hydrogel contain N-isopropylacrylamide, acrylamide and hydroxyethyl cellulose. Corresponding steps contain: dissolving hydroxyethyl cellulose in distilled water; adding an intermixture of N-isopropylacrylamide and acrylamide into a hydroxyethyl cellulose solution; adding an initiator potassium peroxodisulfate and an additive tetramethylethylenediamine, and introducing nitrogen for protection so as to obtain a grafting product; drying the grafting product, and extracting in an extractor by using acetone as an extractant; dissolving the purified grafting product in distilled water, adding sodium hydroxide and a cross-linking agent epoxy chloropropane, and carrying out magnetic stirring to obtain a drug-loading thermosensitive hydrogel semi-finished product; and soaking the semi-finished product in deionized water to obtain the drug-loading thermosensitive hydrogel with lower critical solution temperature being 37-41 DEG C. the product has equal level of mechanical strength in comparison with the prior art. In addition, the preparation is more convenient to operate, and time cost is saved.

Photochromic polyurethane laminates and methods for the formation of same wherein a photochromic polyurethane layer of the laminate is interposed between two primer coated transparent resin sheets.

The invention discloses a mosquito-repelling 3D (three-dimensional) printing material and application thereof. The mosquito-repelling 3D printing material comprises, by weight, 110-145 parts of PLA (poly lactic acid), 10-20 parts of anophelifuge, 10-20 parts of cross-linking agent, 2-5 parts of coupling agent, 10-30 parts of sodium lignin sulfonate, 2-20 parts of nano antibacterial agent and 0.1-0.5 part of assistant. The mosquito-repelling 3D printing material and application thereof have the advantages that the network structure of the material is enhanced remarkably, toughness of 3D printing products made of the material is improved effectively, degradation rate is high, antibacterial effect is good, mosquito repelling effect is excellent, and cleanliness is high; more importantly, mint flavone extracts, rosemary extracts and the like in the anophelifuge have mosquito repelling and anti-oxidation effects, and further improves anti-oxidation, sterilization and bacteria inhibition performance and the network structure of the mosquito-repelling 3D printing material as cooperating with other components, thereby having a great significance.

The invention belongs to the field of preparation of inorganic membrane materials, in particular to a preparation method and application of an organosilicone sol based on pH swing. The preparation method comprises the following steps of adding an organosilicone source precursor into absolute ethyl alcohol; after stirring in water bath, adding deionized water; on the premise of continuous stirring in the water bath, adjusting the pH of the system to acidity by using acid and reacting for one hour; adjusting the pH of the system to weak acidity or neutrality, and reacting for one hour to prepare the organosilicone sol of which particle size distribution is extremely-narrow and stable; gelatinizing the sol into a membrane for reverse osmosis desalination. The organosilicone reverse osmosis membrane shows excellent hydrothermal stability and salt rejection rate.

The invention provides a waste incineration fly ash plasma fusing method. The method at least comprises the following steps that step 1), a fusing additive is added into to-be-fused fly ash so as to obtain a fusing mixture; and step 2), fusion treatment is carried out on the fusing mixture so as to obtain a fusing glass body. The fusing additive comprises quartz sand, Al2O3, ZrO2 and boric acid. SiO2 and Al2O3 in quartz sand serve as a forming body of a network structure of a fusing glass body, ZrO2 serves as a nucleating agent, so that the surface crystallization is converted into the overallcrystallization under the action of an induced phase splitting mechanism of the glass body, and the boric acid is used as a fluxing agent to form a low eutectic point with the to-be-fused fly ash, sothat the fusing temperature of the to-be-fused fly ash is reduced.

The invention discloses a positive plate of a lead-acid storage battery. The positive plate comprises a grid frame body with a tab, lead paste and an acid-resistant porous coating layer, wherein transverse and vertical ribs are arranged in the grid frame body in an intertwined manner; the lead paste, supported by a netty structure consisting of the transverse and vertical ribs, fills the grid frame body, and the acid-resistant porous coating layer is applied to the surface of the lead paste. By combining the structural advantages of a tubular plate and a paste plate, the grid positive plate formed avoids the phenomenon that active substances are softened and fall off, and the service life cycle is effectively prolonged. Meanwhile, the invention further provides a manufacturing method of the positive plate of the lead-acid storage battery. The method has the advantages of mechanical operation, high production efficiency and low input cost and is suitable for mass production.

The invention discloses an edible foaming agent produced from rice starch, rice protein and an emulsifier and a production method thereof. The edible foaming agent is prepared from the rice starch, the rice protein, glycerin monostearate (GSM), sodium stearoyl lactylate, tripolyglycerol monostearates, sodium bicarbonate and sodium chloride. The edible foaming agent has the advantage of available raw materials and convenience in production.

The invention discloses a method for fabricating an acidolysis acetylated starch adhesive and application of the acidolysis acetylated starch adhesive, and belongs to the technical field of preparation of adhesives. The fabrication method disclosed by the invention comprises the following steps: 1, firstly, carrying out acid leaching on starch by a hydrochloric acid, and then adding an acetic oxide, so as to obtain the starch modified by acidolysis acetylation; 2, preparing an emulsion from the acidolysis acetylated starch, adding an initiator and mixing with a polyvinyl alcohol solution and then carrying out graft copolymerization together with a vinyl acetate monomer; 3, carrying out cross-linking reaction together with an N-hydroxymethyl acrylamide crosslinking agent, and finally adding additives to obtain the starch adhesive for wood with excellent performance. The adhesive prepared by the method is superior to a white emulsion in appearance, mobility and wood polluting property, and good in freeze-thaw stability and clay stability, and can be widely applied to bonding of wood.

The invention discloses Ce and Y codoped modified sealing-in microcrystalline glass, which comprises the following ingredients through being metered by mole percentage: 0 to 10 percent of B2O3, 0 to 10 percent of Al2O3, 30 to 40 percent of SiO2, 20 to 40 percent of MO (one or several materials from MgO, CaO, SrO and BaO) and 15 to 40 percent of RO (CeO2 and Y2O3). The Ce and Y codoped modified sealing-in microcrystalline glass has the advantages that preparing raw materials are simple and can be easily obtained, the process is stable, the cost is low, the process is simple and feasible, and the practical and industrialized conditions are reached.

The invention discloses a method for preparing sticky rice modified starch with adsorption and sustained release capacity, relates to a method for preparing starch, and aims to solve the problems that starch molecules are swollen when meeting water and heat, so the space structure is damaged, and the adsorption performance is reduced during application of the conventional porous starch. The method comprises the following steps of: stirring sodium acetate, acetic acid, water and starch under the protection of nitrogen at room temperature for 15 to 30 minutes to obtain a mixed solution; 2, heating the mixed solution to 42 DEG C, adding beta-amylase, performing enzymolysis for 18 to 20 hours, adding alkali and a cross-linking agent, and performing cross-linking reaction to obtain reaction liquid; and 3, adjusting the pH value of the reaction liquid to be 5.0 to 5.5, filtering, washing and drying to obtain the sticky rice modified starch with the adsorption and sustained release capacity. By the method, the freeze-thaw stability, the acid resistance, the high temperature stability and other performance are improved greatly. By the method, the intensity and the adsorbability of the starch can be improved obviously. The method can be applied to the fields of food, medicines and cosmetics.

The object of the present invention is a new method for kneading dough containing soft wheat flour, conducted in the presence of ozone and using at least one mechanical agitator (“fraser”). The dough so produced may be used to manufacture finished cereal bakery products such as loaves or related products (raised pizza dough for example).A further object of the invention is new kneading devices adapted for kneading in the presence of ozone.

The invention discloses frozen bread dough containing compound plant antifreeze proteins, a preparing method thereof and a method for preparing bread through an optimized process. The frozen bread dough is prepared from, 40-50 wt% of bread special flour, 9-12 wt% of sugar, 0.5-1.5 wt% of yeast, 0.4-0.8 wt% of sodium chloride, 1.5-3 wt% of milk powder, 5-11 wt% of shortening, 0.05-0.15 wt% of fenugreek gum, 0.05-0.30 wt% of monoglycerides tartartaric acid diacetate, 20-30 wt% of water, 0.25-1.5 wt% of carrot antifreeze protein powder, 0.5-3 wt% of Tangut rhodiola rosea leaf antifreeze protein powder and 0.5-3 wt% of polygonum viviparum leaf antifreeze protein powder. The bread produced after the bread antifreeze dough is unfrozen, leavened and baked has the advantages of being large in specific volume, crispy, soft and delicious, and extremely excellent in sensory quality.

The invention relates to a preparation method of a low-zirconium mullite cast steel brick, and belongs to the field of preparation of refractory materials. The raw material formula of the low-zirconium mullite cast steel brick provided by the invention comprises electrically smelted mullite, zirconium oxide, Guangxi white clay, andalusite, kyanite and lignin. According to the method provided by the invention, type and grain size of the raw materials are selected to be matched with the sintering temperature and time provided by the invention, so that the prepared low-zirconium mullite cast steel brick has the characteristics of excellent scouring resistance, high temperature resistance, small creep deformation, high compression strength, good thermal stability and the like, and is suitable for being used in large steel ingot casting in nuclear power products.

The invention discloses lithium-sodium-potassium codoped dental microcrystalline glass and a preparation method and application thereof. The glass is prepared from, by mass, 65%-75% of SiO2, 5%-10% of Li2O, 5%-10% of Na2O, 5%-10% of K2O, 4%-6% of P2O5 and 4%-6% of ZrO2. The sum of the mass fractions of the components is 100%. A glass block is firstly obtained through a fusion pouring method, a glass intermediate R2SiO3 (R=Li, Na and K) easy to machine is obtained after devitrification treatment is carried out, then secondary thermal treatment is carried out, and the finished microcrystalline glass with R2Si2O5 (R=Li, Na and K) as a main crystalline phase is obtained. The microcrystalline glass has excellent bending strength and other mechanical properties and can be used for dental all-ceramic repair materials.

The invention discloses a method for preparing a rubber shock pad, which belongs to the technical field of a high-molecular material. The method comprises the following steps: mixing rice husk fiber,secondary sedimentation tank sludge, sucrose and water, performing fermentation, adding a ferric chloride solution, stirring and mixing the materials, adding ammonia water to adjust the pH, and performing steps of filtering, washing, drying, and heat-insulating carbonization to obtain pretreated rice husk fiber; performing high temperature treatment on the pretreated rice husk fiber by steam, anddrying the material to obtain modified rice husk fiber; masticating the hydrogenated nitrile rubber, then adding natural resin, the modified rice husk fiber, a modified additive, a vulcanizing agent,an accelerator, an anti-aging agent, and a plasticizer for mixing, applying an external magnetic field during a mixing process, and after mixing is completed, performing extrusion molding, vulcanization, and discharging to obtain the rubber shock pad. The rubber shock pad produced by the technical scheme of the invention has the characteristics of excellent shock absorption performance and aging resistance.

An antenna device, a wireless cellular network, and a method of capacity expansion are provided. The antenna device includes: a contact element adapted to connect a base station to receive input signals from the base station; an amplitude and phase allocating element adapted to allocate the input signals received by the contact element according to designed amplitudes and phases; an antenna element comprising an array of antennas comprising an even number of columns, and adapted to receive and transmit the input signals allocated with the amplitudes and phases. An array of antennas comprising an even number of columns has been adopted, and a feed network construction of the antenna system has been improved, so that through adjusting amplitudes and phases of original signals from a base station, a smooth capacity expansion of the network can be achieved without adjusting antenna directivities, thus reducing the workload and complexity for capacity expansion.

The invention discloses vegetarian meat balls containing modified starch and a preparation method thereof. The vegetarian meat balls are prepared from the following raw materials in parts by weight: 60-80 parts of vegetable protein, 5-10 parts of the modified starch, 10-20 parts of native starch, 1-5 parts of vegetable oil, 1-3 parts of table salt, 1-5 parts of white sugar, 0.2-0.8 part of myristica fragrans powder, 0.1-0.5 part of pepper and 0.1-0.5 part of ginger powder, wherein the vegetable protein is prepared by mixing soy isolate protein, textured soybean protein and wheat protein according to a mass ratio of 1 to (10-20) to 5, and the modified starch is cassava cross-linked esterified oxidized composite modified starch. The vegetarian meat balls prepared by the preparation method are high in meat-imitation degree, and proper in viscoelasticity and hardness, have real fleshy chewing feeling, texture and flavour, have no beany flavor, are moderate in mouthfeel, balanced in nutrition, and low in production cost, and provide more plentiful choices for vegetarian food consumers.

The invention discloses frozen bread dough containing a composite antifreeze agent made from plant antifreeze proteins, a preparation method of the dough, and a method for preparing bread with an optimized process. The frozen bread dough comprises the following components in parts by weight: 40-55% by weight of bread specialized bread powder, 10-12.5% by weight of sugar, 0.5-1.5% by weight of yeast, 0.4-0.8% by weight of sodium chloride, 1.5-3% by weight of milk powder, 5-10.5% by weight of shortening, 0.05-0.15% by weight of bottle gourd Pakistan rubber, 0.05-0.30% by weight of diacetytartaric esters of monoglycerides, 20-30% by weight of water, 0.05-0.1% by weight of glutamine transaminase, 0.05-0.1% by weight of xylanase, and 0.5-3% by weight of antifreeze protein powder made of polygonum viviparum leaves. The produced frozen bread dough is subjected to thawing, curing and baking so as to form bread which has the characteristics of large specific volume, a soft and tasty mouth feeland excellent organoleptic quality.

The invention discloses a wood fiber production method, which comprises: S1, material selection; S2, skin removal; S3, water washing; S4, slicing; S5, pre-cooking; S6, pressurizing cooking; S7, grinding; S8, softening; S9, drying; S10, air selection; S11, nutrient solution spraying; and S12, packaging warehousing. According to the present invention, the wood fiber produced through material selection, skin removal, water washing, slicing, pre-cooking, pressurizing cooking, grinding, softening, drying, air selection, nutrient solution spraying, packaging warehousing and other steps can be well used in spray seeding technologies; the wood fiber produced by the method has good softness; and during the spray seeding, when the wood fiber, the water and the binder are mixed, the wood fiber has good water absorption, such that each wood fiber can absorb a large amount of water so as to achieve good water content.

The invention discloses a preparation method of a double epoxy compound crosslinking agent modified xanthan gum. The preparation method comprises the following steps: taking water as a solvent and a double epoxy compound as a crosslinking agent, and modifying xanthan gum to obtain the double epoxy crosslinking agent modified xanthan gum. Compared with non-modified xanthan gum, the viscosity and the viscoelastic property of a solution of the double epoxy crosslinking agent modified xanthan gum are remarkably improved, and when the double epoxy crosslinking agent modified xanthan gum is used asfracturing fluid, on one hand, the use amount can be greatly reduced, and on the other hand, the viscoelastic property of the fracturing fluid can be improved, so that the purposes of reducing the cost and improving the efficiency are achieved.

The invention discloses a method for preparing silicon dioxide aerogel by a sublimation method. The method comprises the following steps of (1) dissolving a sublimation substance in an alcohol-water solvent to obtain a transparent solution; (2) adding a silicon source and a alkali catalyst into the solution in step (1), uniformly mixing and standing to form gel, and then aging the gel; (3) carrying out vacuum sublimation on the aged gel in step (2) to remove the sublimation substance so as to obtain the silicon dioxide aerogel. According to the method, the sublimation substance can plug the gaps of the gel, plays a role in enhancing the network structure of the gel, and can reduce the shrinkage of the gel; solvent exchange and gel surface modification process are not needed in the preparation process, so that a large amount of organic solvents are saved, and the preparation efficiency of the silicon dioxide aerogel is greatly improved. The silicon dioxide aerogel prepared by the methodis of a nano-pore structure and has the advantages that the pore diameter distribution is 1-200 nanometers; the BET specific surface area is as high as 300-1000 m2 / g<1>, the density is 0.05-0.65 g / cm<3>, and the thermal conductivity is 0.01-0.08 W / m<1> / k<1>.

The invention discloses an infrared optical glass with a high refractive index, and a preparation method thereof. The infrared optical glass comprises 30-40 parts of quartz, 40-50 parts of phosphorus pentoxide, 20-30 parts of anhydrous mirabilite, 25-30 parts of boric acid, 5-10 parts of potassium nitrate, 20-25 parts of dolomite, 3-5 parts of barium oxide, 1-3 parts of barium chloride, 3-5 parts of zinc oxide, 5-7 parts of titanium oxide, 5-10 parts of kaolin and 4-5 parts of carbon powder. According to the invention, aluminum oxide and boron oxide are added, and the added aluminum oxide and boron oxide can form an aluminum phosphate and boron phosphate combination with phosphorus oxide, so that a chain structure is converted into a more stable layered structure, and the chemical stability and compressive strength are improved; and silica is introduced, a stable network structure of aluminum phosphate-boron phosphate-silicon dioxide is formed.