94results about How to "No use" patented technology

The present invention relates to an energy router for an energy internet, which comprises a three-phase three-level bi-directional rectifying unit, a six-phase interleaved DC/DC bi-directional conversion unit, a self-excitation soft start push-pull full-bridge DC/DC bi-directional conversion unit, a three-phase resonant soft switching bi-directional inversion unit, a single-phase full-bridge bi-directional inversion unit, a high-voltage DC bus and a low-voltage DC bus. The three-phase three-level bi-directional rectifying unit, the six-phase interleaved DC/DC bi-directional conversion unit, the self-excitation soft start push-pull full-bridge DC/DC bi-directional conversion unit, the three-phase resonant soft switching bi-directional inversion unit and the single-phase full-bridge bi-directional inversion unit each have three energy flow operating modes: a forward conduction, a reverse conduction and a non-conduction. According to the energy flow operating mode of each unit, different operating modes of the energy router for the energy internet are formed.

The invention provides a preparation method of a carbon nano material-modified polymer. The preparation method comprises the following steps: 1) adding a thermoplastic polymer and a carbon nano material into a ball mill, wherein the ratio of the material to balls is 1:(2-5); ball-milling for 1-8 hours under the condition of 50-300 rpm to obtain a raw material, wherein the mass percentage of the carbon nano material is 0.05-15 percent of that of the polymer, grinding bodies in the ball mill are grinding balls with different sizes made of two kinds of same materials, and the mass ratio of the big balls to the small balls is 1:(1-6); 2) performing melt extrusion on the raw material by utilizing a single screw extruder or a double-screw extruder and curing to obtain a fibrous carbon nano material-modified polymer; or hot-pressing the raw material by utilizing a hot press to obtain the flaky carbon nano material-modified polymer. According to the preparation method provided by the invention, the dispersing properties of a carbon nano tube and grapheme in a polymer matrix layer in the melt spinning process are improved, and the physical and mechanical properties or the electrical conductivity or the thermal conductivity of a polymer composite material are effectively improved.

The invention relates to a novel air purifying and drying device. The air purifying and drying device comprises an air filtering module, an ultraviolet sterilization module, a freeze drying and dehumidifying module and a negative oxygen ion generating module. The four modules comprise an air filtering sleeve (1), an ultraviolet lamp tube (2), an air pumping fan (3), a freeze dryer heat exchanger (4), a negative oxygen ionizer (5), a chilled water tank (6), a chilled water circulation water pump (7), an installation box (8) on the outer layer of the device and a corresponding control system. The air purifying and drying device integrates a plurality of functions such as filtering, sterilizing, drying and generating negative active ions. The air purifying and drying device has the advantages that the air purifying and drying efficiency is high, machining, installing and debugging are convenient, the air purifying and drying device is convenient to carry, easy to arrange and chemical agent-free, and the air purifying and drying can be widely used in various climatic environments.

The invention discloses a preparation method of an antifogging and antireflection film coating liquid. The preparation method comprises the following steps: (1) dispersing nano silica in deionized water to prepare a dispersion liquid with mass percent concentration of 0.1-30%, adding a silane coupling agent to the dispersion liquid, heating to raise the temperature, and reacting for 0.2-1 hour; (2) adding a mixed solution which is formed by acrylic acids and acrylic esters and is diluted by a diluent to the solution in the step (1), stirring and mixing the solutions at 50-80 DEG C for 30-40 minutes, then adding an initiator, reacting for 5-10 hours, and cooling to obtain a nanocomposite dispersion liquid; (3) diluting the nanocomposite dispersion liquid in the step (2) into a solution with concentration of 0.1-50wt%. The preparation method has the beneficial effects that an in-situ free radical polymerization method is adopted, the coating effects are better, the coating can be ensured to have good apparent properties, and the coating is high in drying speed and has excellent antireflection and anti-dazzle effects.

The invention discloses a method for preparing a high-yield SiC nanowire. The method comprises the followings steps of: performing mechanical mixing by taking 36.8 to 95.2 mass percent of industrial silicon powder or silicon dioxide powder and 4.8 to 63.2 mass percent of industrial expandable graphite as raw materials; filling a mixture into a graphite crucible and placing the graphite crucible into a high-temperature atmosphere furnace; filling argon as a protective gas after vacuumizing; raising a temperature to be between 1,300 and 1,700 DEG C at a speed of 2 to 15 DEG C/min; keeping the temperature for 1 to 8 hours; keeping the pressure intensity in the furnace lower than 1.0 MPa in an overall preparation process; naturally cooling to room temperature; and opening the furnace to obtain the SiC nanowire. The method has the characteristics of low-cost and easily-obtained raw materials, simple process without using a catalyst and productivity up to 65 percent, and is suitable for industrial production of the SiC nanowire.

The invention provides a ternary rare earth complex and application of the complex in preparing high-strength hybrid luminous hydrogel. The chemical structural formula of the ternary rare earth complex is shown as follows. First terpyridyl bridged imidazolium salt is used for being combined with a rare earth beta-diketone complex to form a ternary complex, the ternary complex can be self-assembled in water to form a micellar structure, and then rare earth ions and ASPA are isolated through the collaborative protection on the rare earth ions by the ternary complex and the micellar structure, so that the aim of preparing a hydrogel which is good in luminescence property and high in mechanical strength is achieved. The hydrogel uses water as a medium, the preparation method is simple, easy and environmentally friendly, and a volatile organic solvent is avoided from being used. Please see the formula in the description.

The invention relates to the technical field of wire drawing, and particularly discloses modified metal wire drawing powder. The modified metal wire drawing powder is prepared from the following components in parts by mass: 10 to 60 parts of lubricant, 10 to 60 parts of friction-reduction additive, 1 to 15 parts of extreme pressure agent, 0.3 to 10 parts of anti-rust agent and 5 to 25 parts of alkaline metal/alkaline earth metal hydroxide, wherein the extreme pressure agent comprises methylphenyl silicone oil. A preparation method of the modified metal wire drawing powder comprises the following steps of mixing and stirring the lubricant, the friction-reduction additive and the anti-rust agent, heating, adding a saturated water solution of the alkaline metal/alkaline earth metal hydroxide, preserving heat and reacting for a period of time, adding the extreme pressure agent, uniformly stirring, drying, and crushing, so as to obtain the modified metal wire drawing powder. The modified metal wire drawing powder has the advantages that the lubricating property and anti-corrosive property are good, the high temperature and high pressure-resistant property is realized, the cost is low, the abrasion consumption is low, and the storage is easy.

Provided is an intervention type in-vivo real-time tumor imaging method and system. The imaging method comprises the steps that the polarization directions of terahertz and infrared source emergent light waves are adjusted, the light waves are conducted to the tissue to be detected through an array optical-fiber bundle, signals reflected by the tissue are converted into vertically polarized waves and then enter a detector for imaging in an incidence mode. The imaging system comprises a terahertz and infrared source, a terahertz detector, a reshaping unit, a polarization unit, a polarization conversion unit and an intervention unit. The system works in a terahertz and infrared frequency band, can perform tumor diagnosis in the human body in real time, has more advantages compared with X-ray, CT examination and other technologies, is high in spatial resolution, and has more advantages than a pathological biopsy technology in rapid, accurate and noninvasive characteristics. The intervention type in-vivo real-time tumor imaging method is safer, more accurate, quicker and more convenient and has the good application prospect in tumor diagnosis.

The invention provides a simple polylactic acid toughening modification method, in particular to a method for preparing a toughened polylactic acid compound by taking star-shaped polyurethane as a toughening modifier. The toughened polylactic acid compound with a better toughening effect is prepared by adding polyisocyanate as a crosslinking agent. The preparation method of the star-shaped polyurethane toughened polylactic acid compound comprises the following steps: adding 60 to 99 parts of polylactic acid, 1 to 40 parts of star-shaped polyurethane and 0 to 10 parts of polyisocyanate into a torque rheometer for compounding and banburying; performing a co-blending reaction at the temperature of 170 to 210 DEG C and at the rotation speed of 30 to 120 revolutions per minute for 3 to 20 minutes. The star-shaped polyurethane is prepared by adopting a simple bulk one-step method or a bulk pre-polymerizing method. The preparation method is easy to operate, is short in preparation period, is high in efficiency, and has the advantages of lowering equipment investment and production cost and overcoming the defects caused by adoption of solvents in the prior art, along with no need of catalyst, environment-friendly production process, and easiness in popularization and application.

The invention provides preparation of a boric acid functionalized resin and an application of the boric acid functionalized resin to separation and purification of high-purity oleuropein, so as to overcome the defects of high usage amount of a target solvent, complex process, low purity of the oleuropein and low yield in the prior art. A m-aminophenylboronic acid resin is simple in preparation process, simple and convenient to operate and free from corrosive chemical reagents; a process route for purifying the oleuropein is simple, the purity can reach 60% or above, the yield can reach 60% orabove, the cost is low, the efficiency is high, and the method is suitable for large-scale industrial production. The m-aminophenylboronic acid functionalized resin can be regenerated and repeatedly used, and the adsorption capacity is reduced by about 5% after the m-aminophenylboronic acid functionalized resin is recycled for five times.

The invention discloses flame-retardant, antibacterial and transparent super-amphiphobic paint and a preparation method and application thereof. The flame-retardant, antibacterial and transparent super-amphiphobic paint is prepared by the following steps: firstly preparing inorganic/organic nanoparticles modified by a nitrogen-containing positive ion silane coupling agent, and dispersing the inorganic/organic nanoparticles along with flame retardant particles and a fluorine-containing silane coupling agent in a solvent and reacting. By a spray-coating, brush-coating or dip-coating method, the paint is applied on the surface of a metallic base material, an inorganic base material or an organic polymer base material. The use amount of the coating obtained is less. It can be effectively ensured that characteristics such as color, texture, pores, air permeability, etc. of the surface of the base material are unchanged, and excellent and stable super-amphiphobic property, flame retardant property and antibacterial property can be obtained. Meanwhile, the preparation is simple, the raw materials are cheap and easily available, and no toxic organic solvent is used. The preparation condition is mild, and the preparation is carried out at normal temperature and in an ordinary state and is environmentally-friendly. The preparation cost is low. Thus, the method is suitable for large-scale production and is good for industrial application and promotion.

The invention relates to a method for improving polyamide reverse osmosis membrane performance through surface modification. The method comprises the specific steps that a lignin solution is prepared at first; then, the prepared lignin solution is filtered through a polyamide reverse osmosis membrane on the conditions of the certain pressure, flow speed and temperature; finally, the lignin solution in a device is discharged, and pure water is used for flushing the membrane device on the conditions of zero pressure and high flow speed to obtain the modified reverse osmosis membrane. According to the modified reverse osmosis membrane obtained through the method, the membrane surface roughness is improved, the load electric property is enhanced, the membrane osmosis performance is remarkably improved, the membrane anti-pollution capacity is improved, and the operation cost of the reverse osmosis membrane can be lowered.

The invention discloses rosa roxburghii tratt powder rich in vitamin C and a preparation method thereof. The preparation method comprises the following steps: (1) pre-treating rosa roxburghii tratt toobtain rosa roxburghii tratt juice or concentrated juice; (2) fermenting the rosa roxburghii tratt juice by using saccharomyces cerevisiae; (3) sequentially filtering by using filter cloth and a nanofilter element ceramic membrane; (4) performing vacuum concentration treatment; and (5) drying. According to the preparation method disclosed by the invention, the saccharomyces cerevisiae is added in the preparation process of the rosa roxburghii tratt powder, and carbohydrates in the feed liquid are effectively reduced through the fermentation effect of the saccharomyces cerevisiae, so that theproportion of the vitamin C in the material is increased, and the content of the vitamin C in the rosa roxburghii tratt powder disclosed by the invention reaches 17% or above. According to the preparation method disclosed by the invention, SOD is effectively enriched, and the content can reach 10-15,000U/g; the yeast and other impurities are filtered by the ceramic membrane, high-temperature treatment is avoided, and degradation of VC is reduced; and the rosa roxburghii tratt powder prepared by the preparation method disclosed by the invention is good in fluidity, effectively inhibits the caking problem, and can be applied to industrial production.

The invention discloses a water purifier with a dehumidifier. The water purifier comprises the dehumidifier and a water purifier body. A liquid accumulator is communicated with a compressor through a compressor muffler, the compressor is electrically connected with a dehumidifier controller, an evaporator fan is electrically connected with the dehumidifier controller, and a frosting preventing temperature sensor is electrically connected with the dehumidifier controller. An evaporator water pan is communicated with a water storage tank through a PE pipe, a self-priming pump is electrically connected with a water purifier controller through a wire, and a UDF filter is communicated with the self-priming pump and a second PP cotton filter through PE pipes. The water purifier is reasonable in design, the air conditioning refrigeration technology is used for the water purifying technology, the water purifier is a technical breakthrough in the field of water purifying, air refrigeration is achieved, vapor in air is extracted, resources are saved, waste water generated in the water producing and flushing process of the water purifier directly returns into the water storage box, and waste-water-free utilization is achieved.

The invention discloses a preparation method of a polymer based dielectric material and relates to the technical field of dielectric materials. The preparation method comprises the steps that ceramicparticles loaded with Ag serve as filler, polyvinylidene fluoride serves as a polymer base, the ceramic particles are subjected to surface modification through a method combining physical ball millingand chemical surface active agents, then the modified ceramic particles are prepared into composite filter by being loaded with metal Ag through an ultrasound-assisted magnetron sputtering method, and finally the polyvinylidene fluoride and the composite filler are subjected to multi-layer co-extrusion alternately. The prepared polymer based dielectric material has high breakdown field strength,high energy density, high dielectric constant and low dielectric loss, and the preparation method is low in energy consumption, environmentally friendly and free of pollution.

The invention discloses a desulfurization gypsum powder decorating board. A raw material formula of the desulfurization gypsum powder door pocket board is as follows: 60-70 percent of desulfurization gypsum powder, 8-12 percent of epoxy resins, 4.8-5.2 percent of polyvinyl chloride, 4.8-5.2 percent of foam regulating agents, 4.8-5.2 percent of activated charcoal (AC) foaming agents, 2.8-3.2 percent of stearic acid, 3.8-4.2 percent of calcium stearate and 4.8-5.2 percent of glazes. A preparation method of the desulfurization gypsum powder decorating board comprises the following steps of: (1) weighing the materials in the proportion of the raw material formula; (2) mixing and stirring the weighed materials; (3) performing extrusion molding on a mixed material by virtue of an extruding machine; (4) heating and conserving molded blank bodies; (5) manufacturing semi-finished products which are subjected to the conservation to be blank bodies by using a board pressing machine; (6) delivering the pressed blank bodies to a drying kiln for drying; (7) performing atomization and glaze spraying on the dried desulfurization gypsum powder decorating board by using the conventional method; and (8) drying the desulfurization gypsum powder decorating board onto which the glazes are sprayed. The desulfurization gypsum powder decorating board has the advantages of corrosion resistance, weather resistance and the like.

The invention discloses a kit for detecting a ubiquitin-binding enzyme antibody and a use method, and belongs to the field of biomedicine. The kit for detecting the ubiquitin-binding enzyme antibody comprises: a solution for detecting the ubiquitin-binding enzyme antibody; and the solution comprises an active ester for labeling a ubiquitin-binding enzyme antibody and a non-radioactive solution. The active ester comprises thioruthenium derivative active ester and biotin polyethylene glycol active ester. The kit further comprises a 96-well plate, a streptavidin graphene plate, a 0.01 mol/L PB, a 5% BSA solution and a PBST solution. The streptavidin graphene flat plate is an MSD96 pore plate marked by streptomycin. Compared with the prior art, the kit provided by the invention has the advantages of higher sensitivity and specificity, no use of radioactive substances, simplicity and convenience in operation, capability of detecting the amount of antibodies in trace serum, and very good clinical application value.

The invention discloses a method for synthesizing high-selectivity oxaziridine through a chemical enzyme process and belongs to the technical field of chemical synthesis. According to the method, aromatic aldehyde and fatty amine are used as reaction substrates, acetonitrile is used as a solvent and D-ethyl mandelate is used as a peroxy-acid precursor. The method comprises the following operationsteps: adding enzyme, an oxidizing agent, the reaction substrates, the peroxy-acid precursor and the solvent into a reaction container, stirring and reacting for 2 hours under the room-temperature condition to obtain the high-selectivity oxaziridine. The experiment proves that lipase has an obvious catalyzing effect of the reaction and can reach high cis-trans selectivity which is greater than 90%or more; no by-product is generated in the reaction process. Compared with the conventional chemical synthesis method, the method has the advantages of metal-free catalysis, green and environmental protection, low cost, high efficiency and high selectivity; a new method is provided for synthesizing oxaziridine compounds with cis-trans selectivity.

The invention discloses a method for detecting cotton content of fabric. The method comprises steps of selecting standard samples; selecting a titration solution; identifying the cotton content of thefabric according to standard sample titration rates obtained by titration on the standard samples of clothing. The method adopts nondestructive testing, damage to the clothing and generation of polluting gas are avoided in the identifying process, while samples are damaged and the environment is polluted in the common burning method. High-cost instruments and tools are not needed in the method, and the detection method is simple and has important significance in identification of the cotton content of the fabric.

The invention discloses a production method of a coal ash stair handrail. The raw materials include, by ratio, 70% of coal ash, 8% of polyvinyl choride, 12% of epoxy resin, 3% of stearic acid, 4% of calcium stearate and 3% of paint. The production method includes weighing all the materials according to the ratio of the raw materials, fully mixing and stirring the materials (except the paint), transferring the mixed material to a blank mould for extrusion forming, subjecting the formed semi-finished product to heating and maintenance, sending the blank after maintenance to a drying box for drying, and subjecting the dried blank to paint backing. The stair handrail produced through the method has the advantages of being light in weight, corrosion and weather resistant, attractive and elegant in appearance, not easy to deform and the like.