465results about How to "High degree of binding" patented technology

The present invention belongs to the macromolecular material technical field and concretely relates to natural fibre enhanced polylactic acid composite material and a preparation method thereof. The composite material consists of graft modified polylactic acid and the natural fibre. A concrete preparation step is that a polylactic acid matrix is processed for the graft modification, so as to improve the interface combined degree of the natural fibre and the polylactic acid matrix. Firstly, the polylactic acid is processed for the graft reaction with maleic anhydride under the action of an initiator to prepare the graft modified polylactic acid matrix; then the modified polylactic acid and the natural fibre are compounded to obtain biological full-degraded natural fibre enhanced polylactic acid composite material. Compared with pure polylactic acid, the mechanical performance and the thermal performance of the composite material are all improved, and the composite material can be used for preparing the project plastic with rigorous condition requirement. The composite material of the present invention can be degraded completely in the natural environment after being used and wasted and belongs to environmental friendly material.

The embodiment of the invention provides a method and a system for presenting article relevant information in a video stream. The method comprises the following steps that: a client identifies and analyzes a frame image in the played video stream, and transmits a regional image which conforms to an article feature to a server side; when the server side matches the regional image with a pre-stored article sample picture and matching succeeds, the client adds a focus frame to the regional image; and after a click operation of the focus frame is received, the client presents a floating layer window, and presents relevant information, which is acquired from the server side, of a matched article in the floating layer window. In the embodiment of the invention, relevant information of articles is pre-stored in the server side, and the relevant information of the articles is presented in the video stream played by the client, so that the relevant information of the articles can be obtained without searching the articles through Internet and the like, and convenience is brought to know the articles in the video stream.

The invention belongs to the field of lithium ion battery materials, and particularly discloses a porous silicon monoxide composite material. The composite material comprises an inner core, a middle layer compounded on the surface of the inner core and an outer layer compounded on the surface of the middle layer, wherein the inner core is silicon, the middle layer is silicon monoxide and silicateof metal M dispersed in the silicon monoxide, the outer layer is a carbon coating layer, and the metal M is a metal element capable of reducing silicon oxide. The invention also provides a preparationmethod of the composite material and an application of the composite material as a negative electrode active material of a lithium ion secondary battery. Research finds that the composite material has the characteristics of long cycle life, high initial efficiency and the like.

The invention discloses an alcohol-rejection proton conducting composite film and a preparation method thereof. The alcohol-rejection proton conductive composite film is characterized in that a grapheme layer is composited in parallel with polymer proton conducting films and is adhered to one sides of the polymer proton conducting films or clamped between the two polymer proton conducting films. The preparation method comprises the following steps of: attaching the grapheme layer to one sides of the polymer proton conducting films by developing copper-base chemical vapor deposition grapheme or rotatably spraying grapheme aqueous dispersion/oxidized grapheme water solution, and further clamping the grapheme layer between the two polymer proton conducting films by utilizing a hot-pressing process. According to the alcohol-rejection proton conducting composite film, the alcohol-rejection performance of the film can be remarkably improved on the premise that the electric conductivity of protons of a polymer proton conducting film body is not influenced; the alcohol-rejection proton conducting composite film can be obtained by utilizing diversified methods; the preparation process is simple, and most areas of the grapheme layer are single-layered, so that the resistance caused to the proton conduction in the film body is relatively low.

The structure of the complex low-voltage electric heating film (CLEHF) consists of the electric heating inorganic compound (EHIC), the hi-temperature durable (HTD) isolator, the electrodes and the anti-oxidation HTD isolation layer. The EHIC consists of the carbon system inorganic material, the rare-earth material, the metal oxide, the inorganic compound and the polymerization liquid medium adhesive. The manufacture technology of CLEHF includes: ingredient configuring, mixing, skiving, spraying, solidifying and forming. With a low work voltage of 12 volts, CLEHF heats up to 100 degrees centigrade in only 50 seconds. This invention possesses advantages of fast response time, high heating efficiency and wide application range. Depending on different features and usages of various heater bodies, different materials are selected to form different shapes of heating films. Therefore, this heating film adapts to all handy low voltage electric heating apparatuses.

The invention relates to inner electrode paste, which is prepared from the following components by mass percent: 45%-55% of nickel powder, 5%-15% of ceramic powder, 28%-35% of an organic solvent, 3%-6% of macromolecule resin and 0.1%-3% of an organic additive. The inner electrode paste is obtained by appropriate proportioning of the nickel powder, the ceramic powder, the organic solvent, the macromolecule resin and the organic additive; the inner electrode paste has the advantage of good electrode continuity after being sintered by the nickel powder, the silk-screen printing property is not affected, and the phenomenon of net sticking or net jamming is unlikely to appear; the ceramic powder is capable of restraining shrinkage of an inner electrode layer, and effectively restraining cracking and layering of chips; the nickel powder and the ceramic powder can be evenly and stably dispersed in a paste system by the organic additive; the condition that a required pattern is completely and evenly printed by the inner electrode paste can be ensured by the macromolecule resin and the organic solvent; the inner electrode paste can meet the usage requirements of high-frequency and high-capacity multi-layer ceramic capacitors.

The invention relates to a super black and misty leather surface treatment agent which is prepared by mixing the following components in parts by weight: 100 parts of solvent type PU, 10-20 parts of flatting powder, 5-10 parts of wax and 200-250 parts of solvent, wherein the solvent type PU is prepared by reaction of diisocyanate, polylol, chain extenders, catalysts and light stabilizers under the condition of existence of organic solvents. Compared with the original common black and misty leather surface treatment agent, the super black and misty leather surface treatment agent obviously increases the blackness and the haze of coatings, improves the crumpling resistance, the wear resistance and the scratch resistance of coatings, and enables leathers to have waxy effect.

The invention discloses a polyester composite fiber with an intelligent surface, and a preparation method and application thereof. The polyester composite fiber comprises a polyester fiber matrix andparticles covering the polyester fiber matrix, wherein the particles and the polyester fiber matrix are chemically bonded; preferably, the particles are polymer particles; more preferably, the particles are polymer particles with environmental response; thus, covering of the surface of the polyester fiber matrix with the particles can improve the hydrophilicity and hydrophobicity of the fiber andendows the fiber with certain environmental response. The preparation method comprises the following steps: preparing the polyester fiber matrix having reactive groups on the surface at first; then preparing the particles having reactive functional groups; and finally, mixing the polyester fiber matrix and the particles for a reaction so as to obtain the polyester composite fiber. The polyester composite fiber of the invention can be used for smart textiles, non-woven fabrics, porous films, composite materials and oil-water separators, preferably for smart textiles and oil-water separators.

In the invention, industrial-grade titanyl sulfate is used as a titanium source to prepare aqueous titanium dioxide collosol which is suitable for film coating, the titanium dioxide collosol is rotationally coated to form a film, and after high-temperature heat treatment, a high-performance nano-titanium dioxide dense film is obtained. The combination degree between the titanium dioxide film and a matrix is improved and the contact between an electrolyte with a photoanode is effectively prevented so as to reduce electronic complex. Thus, the battery performance is improved substantially, and due to low slurry cost, the industrialization process of the dye-sensitized solar cell is promoted.

The invention discloses an LED street lamp, aiming at providing a high power LED aluminum base plate integrated module with excellent heat elimination performance and effectively prolonged service life. The high power LED aluminum base plate integrated module comprises an LED (1) and an aluminum base plate (2). The aluminum base plate (2) comprises an aluminum plate (20); an insulated oxidization layer (25) is covered on the upper surface of the aluminum plate (20); a basement film (21) and a conducting film (22) are arranged on the insulated oxidization layer (25) in sequence; the conducting film (22) forms a circuitous pattern; the basement film (21) is matched with the contour of the conducting film (22); a plurality of welding films (23) are arranged on the conducting film (22); the chip of the LED (1) is stuck to the insulated oxidization layer (25); and a lead foot of the LED (1) is welded on the welding film (23). The LED street lamp can be widely applied to the lighting field.

The invention discloses a repairing method for the surface of a draught fan blade and belongs to the technical field of draught fan repairing. According to the repairing method for the surface of the draught fan blade, the method comprises the steps of blade surface pre-treatment, preheating before spraying, preparation before material spraying, ultrasonic spraying and hole sealing treatment. According to a spraying material, an NiAl material is chosen and used to conduct bottoming, and the problem that the material thermal expansion coefficients of an abrasion-resisting work layer and a blade base layer are not matched can be solved, so that thermal stress caused by the fact that the expansion coefficients of the work layer and the blade base layer are not matched is reduced, and the mechanical matching and physical compatibility between the work layer and the blade base layer are improved. The work layer is a WC-12Co composite coating or an NiCr-Cr3C2 composite coating. According to the repairing method for the surface of the draught fan blade, by optimizing the repairing steps, multi-element alloy coating components and distribution, the good erosion and abrasion resistance performance is achieved, and the technical problem that the efficiency of a draught fan is affected due to draught fan blade erosion and abrasion is solved.

The invention relates to the technical field of refractory materials, and provides a spinel micro-powder castable for a steel ladle and a method for preparing a prefabricated part from the castable. The spinel micro-powder castable for the steel ladle is prepared from the following components in parts by mass: 25-40 parts of tabular corundum particles, 15-25 parts of white corundum particles, 15-20 parts of fused magnesia-alumina spinel particles, 8-12 parts of white corundum fine powder, 6-10 parts of alpha-Al2O3 micro powder, 3-5 parts of sintered spinel micro powder, 6-7 parts of cement, 1-2 parts of steel fibers and 1-3 parts of additives. Through the sintered spinel micro powder, the castable is more compact, the porosity is reduced, the pore diameter is reduced, and meanwhile, the generation of calcium hexaluminate (CA6) is promoted, so that the matrix structure is optimized. The castable has high normal-temperature strength and high-temperature strength and excellent high-temperature breaking strength, slag corrosion resistance and thermal shock resistance, and the service life of a steel ladle material is effectively prolonged.

The invention discloses a preparation method of a lightweight thermal insulating wall material of expanded perlite-SiO2 aerogel. The preparation method comprises the following steps of by taking TEOSas a precursor, EtOh as a solvent and H2SO4 and NJ3.H2O as catalysts, adopting acid/alkali two-step catalytic reaction to prepare SiO2 sol, then stirring the SiO2 sol until the sol turns into gel, performing ageing, solvent exchange, surface modification and online temperature raising drying, mixing coal ash, water glass, a polyurethane foaming agent and cement with a product, adding a mixture ina mixer, adding a proper amount of water, uniformly stirring and mixing, performing maintenance to prepare a thermal insulation block, standing for a period of time under the natural condition, and then sending a the thermal insulation block into an autoclave reaction kettle for maintenance to prepare the lightweight thermal insulating wall material. By adopting the preparation method provided bythe invention, in the production process of a novel coal ash porous thermal insulation material, the energy is saved, the main raw material is a solid waste, the cost is low, and the manufactured thermal insulation material accords with the quality requirement with the strength and the thermal insulation performance reaching the standard.

The invention relates to the technical field of building materials, and discloses a method for preparing a high-performance phosphogypsum-based self-leveling mortar. The method comprises the followingsteps: S1, obtaining raw materials comprising 40-60 parts of phosphorus building gypsum, 15-22 parts of cement, 10-24 parts of fly ash, 3-10 parts of stone powder, 1.5-4 parts of a redispersible latex powder, 0.05-0.15 part of cellulose ether, 0.02-0.06 part of a nano-carbon fiber, 0.3-0.8 part of a water retaining agent, 0.1-1.3 parts of a water reducer, 0.1-0.4 part of an anti-settling agent, 0.01-0.08 part of a defoaming agent and 30-42 parts of fine sand aggregates; and S2, mixing the materials obtained in step S1, stirring the obtained mixture until uniformity, and adding water accounting for 13-15% of the total weight of the mixture and performing stirring until uniformity when the mortar is used. The reinforcement of a phosphogypsum-based self-leveling material and the high fracture toughness of the carbon fiber effectively reduce and inhibit the expansion of matrix cracks, and greatly improve the interfacial pore structure of the self-leveling material. The method of the invention improves the bonding degree of the interface of the phosphogypsum matrix, increases the toughness of the phosphogypsum matrix and increases the overall strength.

The invention discloses a supported mercury remover. The active components at least comprise MSSH and carriers, wherein M is a metal which can generate a trivalent ion. The invention further discloses a preparation method of the mercury remover on the basis of the disclosure of the mercury remover. The mercury remover has a very high binding force for mercury, the binding strength between the mercury remover and mercury is stronger than that between the metal sulfide and mercury, and thus the problem of low utilization rate of metal sulfide in the mercury removing process, causing by the bad binding force between the metal sulfide and mercury and low mercury capacity during the mercury removing process, is solved.

The invention discloses a preparation method of a double-faced selective emitter PERC battery. The preparation method comprises the steps of doping the front of a textured P type silicon wafer and then completing deposition of a back passivation layer, a back antireflection layer, a front passivation layer and a front antireflection layer; the preparation method is characterized by also comprisingthe following steps: printing boron-silicon-doped slurry on the back passivation layer of the silicon wafer and drying, and then driving boron into a silicon substrate of the silicon wafer by adopting lasers in a region where the slurry is printed, thus a P+ emitter is formed; meanwhile, forming a linear open window, eliminating redundant boron-silicon-doped slurry by adopting a cleaning fluid and then performing secondary drying, printing front and back electrode slurry on the silicon wafer, and performing high temperature sintering, thus forming an electrode. The preparation method disclosed by the invention adds a drying step after boron slurry is printed, so that laser alignment accuracy is further improved, and product quality is improved; and a step of cleaning and removing the redundant boron-silicon-doped slurry after use of the lasers, so that local ohmic contact quality is improved.

A low-carbon magnesia carbon brick containing a nanometer zinc oxide is characterized in that the low-carbon magnesia carbon brick comprises the four following raw materials by weight percentage: 80-94wt% of electric melting magnesia particles, 1-5wt% of crystalline flake graphite, 1-3wt% of metal Al and 1-5wt% of nanometer zinc oxide, and 2-4wt% of a phenol formaldehyde resin with the quantity of the weight percentage sum of the four raw materials. The low-carbon magnesia carbon brick utilizes the characteristics of the nanometer zinc oxide powders such as fine granularity, high activity at high temperature, moderate price, and the like to improve the microstructure of the low-carbon magnesia carbon brick, prompts the used metal Al antioxidant to sufficiently play the role and prepares the low-carbon magnesia carbon brick with excellent comprehensive performance and moderate price. The prepared low-carbon magnesia carbon brick can be used for the steel-making furnace, the refining furnace and the lining of the steel ladle in the steel metallurgical industry, reduces the carbon added in the molten steel, reduces the temperature reduction of the molten steel and is beneficial for improving the quality of the steel and saving the energy resource.