572results about How to "Dosage control" patented technology

Nicotine in base or salt form combined with cosmetic ingredients to form a lip balm or similar stick. The stick is readily dispensed not only onto a person's lips but also may be used on the skin, for example on the wrist. Packaging the nicotine this way enables a smoker to obtain nicotine discretely anywhere in public, without offending others by smoking. Furthermore, the dosage is readily controlled, and the person's hands and mouth are active, similar to the lighting and smoking of a cigarette.

The invention discloses a low-sodium functional compound seasoning which can increase the taste of salty and savory. The invention is characterized in that the low-sodium salt is the main raw material on the basis of which one or a plurality of functional nutrients that can increase the taste of savory and salty, and one or a plurality of savory materials are added; then after mixing, stirring, and granulating, the compound seasoning is made. The compound comprises 20 to 80 portions weight of low-sodium salt, 10 to 30 portions weight of functional nutrient and 3 to 15 portions weight of savory materials. Therefore, the compound seasoning has the advantages of effectively reducing the ingestion of NaCI, outstanding flavoring effect and nutrient function. What's more, the invention can be operated simply for the taste of salty, savory and delicious can be got at a time in the process of cooking.

The invention provides a method for preparing decolouring flocculating agent for printing and dyeing wastewater. It comprises following steps: adding 6- 9 units dicyandiamide, 4- 1 units urea, 20 -26 units formaldehyde and 3.5- 7.5 untis ammonium chloride into autoclave equipped with reflux condensing unit, reacting at 40 -50 Deg. C for 1- 2 hours, heating to 80- 85 Deg. C and reacting for another 1.5- 2 hours, adding 66.5- 56.5 units newly prepared polymeric aluminum chloride solution (Al2O3%=12), cooling to 40- 50 Deg. C and reacting for 0.5- 1 hour, curing 24 hours and getting final product. The invention is characterized by good decoloring and flocculating effect, simple device and process, and low production cost.

The invention discloses an arc discharge paper deacidification device and a method. The device comprises an air storage tank, a glass rotor flowmeter, a sealing liquid storage tank, an insulated ceramic reactor, an arc discharge gun, an insulated ceramic plate, a fixing frame, a first control motor, a second control motor and a computer. Under a normal temperature and normal pressure condition, the paper is processed by gaseous deacidification agent and arc discharge jet, so that the pH value of the paper can be increased to be neutral. The arc discharge paper deacidification device is simple and feasible, fast in processing speed, obvious in effect, and free of pollution to environment in the processing process; and the color and shape of the processed paper do not change, and the ink marks do not diffuse.

The invention relates to a technology that prepares a proton exchange membrane fuel cell electrode, comprising three parts of a pre-process of the proton exchange membrane, a preparation of a catalyst slurry and spray coating of a membrane electrode. The technology provided by the invention solves the problems that in prior art preparation process, the proton exchange membrane swells and rucks and the dosage of the catalyst is high and the preparation process is complicated. The prepared proton exchange resin has great elasticity and adhesive property, which is beneficial for improving adhesion of the catalyst layer and the proton exchange membrane and improves utilization ratio of the catalyst.

The invention relates to a device for optimized control over carbon source feeding in a denitrification biofilter process. The device is provided with a denitrification biofilter, a carbon source box, a frequency-conversion carbon source pump, a carbon source flowmeter, a backwashing air pump and a backwashing air inlet valve; the denitrification biofilter is internally provided with an online-water-inlet nitrate sensor, an online-water-inlet dissolved oxygen sensor, an online-water-outlet nitrate sensor, a nitrate determinator, a dissolved oxygen determinator, a process controller, and an industrial personal computer; and a water inlet pipeline is provided with a water inlet pump, a water inlet valve and an online-water inlet flowmeter. A method for optimized control cover the carbon source feeding is characterized by comprising the following steps of: (1) introducing water; (2) processing and judging parameters; (3) processing frequency ft by a frequency converter; (4) preventing excessive feeding of a carbon source; (5) stably running; (6) diagnosing faults; and (7) performing backwashing. The device and the method disclosed by the invention can be widely applied to sewage advanced treatment and nitrogenous industrial wastewater treatment, is particularly suitable for producing high-quality recycled water, have the advantages of complete structure, precision for control, good effect and high efficiency.

The invention relates to a formula of tire rubber, in particular to a rubber material formula of car tires. The rubber material formula of car tires, provided by the invention, is composed of following components in parts by weight: 110-140 parts of crude rubber material, 60-110 parts of reinforcing agent, 10-15 parts of environment-friendly aromatic hydrocarbon oil, 2-3 parts of activating agent, 2-4 parts of anti-aging agent, 1-2 parts of microcrystal wax, 2-5 parts of accelerator and 2-2.5 parts of vulcanizing agent. The tires prepared by the rubber material formula disclosed by the invention have greatly improved safety and reduced oil consumption; and the design meets the requirements for environment protection, safety and energy saving of the car tires.

The invention discloses a grain boundary diffusion method of an R-Fe-B rare-earth sintered magnet, an HRE diffusion source and a fabrication method thereof. The grain boundary diffusion method comprises the following steps of forming film engineering A on a high-temperature resistant carrier, wherein HRE compound powder is attached onto the film, and the HRE is selected from at least one of Dy, Tb, Gd and Ho; and placing the R-Fe-B rare-earth sintered magnet and the high-temperature resistant carrier processed by the engineering A in a processing room, performing thermal treatment on the R-Fe-B rare-earth sintered magnet and the high-temperature resistant carrier in vacuum or inert atmosphere, and supplying HRE engineering B to a surface of the R-Fe-B rare-earth sintered magnet from the high-temperature resistant carrier. By the method, consumption of a heavy rare-earth element can be reduced, and the loss of residual magnetism Br of the magnet is controlled as well as the coercivity is improved.

In order to solve the problems that the granules are non-uniform, the surface is provided with cracks and recesses and the compactness of the microcapsule wall is low in the conventional microcapsule product and the product is low in thermal solubility, low in emulsifying property and high in sugar content and has the soybean smell, the invention provides a walnut oil microcapsule and a preparation method thereof belonging to the technical field of oil microencapsulation. The walnut oil microcapsule is prepared by taking 15-25 parts of walnut oil, 0.6-3.4 part of sucrose ester and 1.5-3.2 parts of monoglyceride as the core material and taking 3-10 parts of cane sugar, 18.3-27.6 parts of maltodextrin, 17.6-28.3 parts of peanut protein isolate and 1.3-3.5 parts of dipotassium phosphate as the wall material. Therefore, the prepared walnut oil microcapsule has the advantages of smooth surface, uniform particle size and high compactness of microcapsule wall.

The invention provides a preparation method for a fluorescent and transparent polycarbonate grating for an LED (light-emitting diode). The materials of the fluorescent and transparent polycarbonate grating for an LED are composed of polycarbonate, fluorescent powder, an antioxidant, a coupling agent and a light dispersing agent. The fluorescent and transparent polycarbonate grating for an LED is formed by performing the preparation processes of sieving, preparing, mixing, drying, matching with auxiliaries, mixing, banburying, forming, annealing, cutting, etching and the like on the composition materials. The fluorescent and transparent polycarbonate grating can be used for an LED lamp bead / lamp, for adjusting the colour temperature of the LED, and solving the problems of the glare of the LED, the non-uniform distribution of the traditional silica gel fluorescent powder, and the like. The problem of non-uniform coating of the fluorescent powder is effectively solved, so that the light-emitting efficiency, the service life and the light spectrum stability of the white-light LED are improved; and moreover, the fluorescent and transparent polycarbonate grating is relatively simple in structure and preparation process, high in reliability, low in cost, good in plasticity and capable of being widely applied to LED manufacturing, as well as opens up unprecedented flexibility and creativity for the field of light sources.

The invention discloses a water-swelling rubber composite material. The rubber composite material is formed from the following components in parts by weight: 100 parts of rubber, 30-100 parts of super adsorbent resin, 2-10 parts of metal ion sealing agent, 0.5-2.5 parts of solid softening agent, 0.5-3.5 parts of coloring agent, 1-7 parts of anti-aging agent, 1-7 parts of accelerant, 1-8 parts of zinc oxide, 5-45 parts of reinforcing agent, 5-20 parts of plasticizer, 0.1-2.6 parts of vulcanizing agent, and 5-45 parts of mixture of PEG (polyethylene glycol) and MDI (diphenylmethane diisocyanate) at a molar ratio of 1:1. The invention further provides a preparation of the rubber composite material, in particular provides an application of the rubber composite material as superfine rubber swelling particles in a large pore path or high-permeability belt of a reservoir deep strata for profile control and water shutoff of an oil-water well.

The invention provides a large-area RC basement structure sequence construction method. Firstly, a large-area RC basement is structurally decomposed, and warehouse dividing arrangement, operation conducted according to a rebar binding method, construction joint arrangement, concrete pouring, concrete curing, concrete temperature measurement and briquette retention are sequentially conducted. According to the large-area RC basement structure sequence construction method, a sequence method is adopted for replacing a construction post-cast strip, related work such as RC basement backfill and the like is conducted in advance, engineering construction efficiency is improved, and construction cost is reduced. Construction control is strict, and structural concrete early-stage cracks of the RC basement are effectively controlled. The concrete mixing ratio is optimized, the cement use amount is controlled, and structural concrete shrinkage distortion of the RC basement is effectively controlled. The waterproof quality of concrete of an RC basement structural outer wall and a bottom plate are improved.

The invention discloses super-retarding concrete and relates to the technical field of building materials. According to the key pint of the technical scheme, the super-retarding concrete comprises thefollowing ingredients (by weight): 150-190 parts of water, 320-360 parts of cement, 635-675 parts of sand, 920-1140 parts of cobblestone, 65-95 parts of an admixture A, 92-120 parts of an admixture B, 37-59 parts of gypsum, and 5.5-8.3 parts of an additive. The additive comprises the following ingredients (by weight): 12-16 parts of a retarder and 38-52 parts of a polycarboxylate superplasticizer. The admixture A comprises fly ash, and the admixture B comprises mineral powder. The retarder is composed of sodium thiosulfate, glycerol and sodium tripolyphosphate according to the mass ratio of 1-3: 2.4-3.5: 2.3-3.2. The problem that concrete's short setting time and low long-term strength are hard to meet the requirement of prolonging the setting time of concrete and guaranteeing long-term strength is solved. By using the retarder and the polycarboxylate superplasticizer cooperatively, the setting time of concrete can be prolonged, and the concrete can have high long-term strength.

The invention belongs to the field of biological nano-materials, and specifically relates to a preparation method of biological nano-ferrous sulfide. The preparation method comprises the specific steps: firstly, a phosphate-ferric sustained release system is constructed; secondly, shewanella oneidensis MR-1 is inoculated into an LB culture medium, subjected to activation culture, and then inoculated into the phosphate-ferric sustained release system under aseptic and anaerobic conditions, and when the OD600 value of the final concentration of the shewanella oneidensis MR-1 in the system is 0.1-2, inoculation with the shewanella oneidensis MR-1 stops; and then sodium thiosulfate mother liquor is added, and the biological nano ferrous sulfide is obtained by culturing, centrifuging and washing. The novel phosphate-ferric sustained release system is constructed to realize the quantitative control of ferric iron. A series of nano-ferrous sulfide with different catalytic properties can be controllably bio-synthesized by adjusting the adding amount of the sulfur source in synthesis, the catalytic performance is effectively regulated, and a new way is opened up for regulation of the catalytic performance of the bio-synthesized nano-material.

The invention belongs to the technical field of high polymer materials and preparation thereof, and particularly relates to primer-free polyurethane glass cement. The primer-free polyurethane glass cement comprises the following components in percentage by weight: 19-20% of dioctyl phthalate, 35-40% of polyurethane prepolymer, 17-20% of calcium carbonate, 5.0-6.0% of spherical silica powder, 2.5-3.0% of titanium dioxide, 1.0-5.0% of calcium oxide, 10.0-14.0% of carbon black, 5.0-6.0% of gas-phase silica, 0.03-0.06% of dibutyltin dilaurate and 0.3-0.6% of glycidoxy propyl trimethoxy silane KH560. The primer-free polyurethane glass cement provided by the invention can be adhered in a primer-free manner, thereby being environmental-friendly, economical and solvent-free, and the primer-free polyurethane glass cement has the advantages of high bonding strength, high curing speed, high thixotropy, etc. The primer-free polyurethane glass cement is widely used for adhering and sealing windshield glass and side window glass of railway vehicles, cars and ships with matrix iron plates and aluminum plates.

The invention relates to the field of wastewater treatment, particularly to a method and an apparatus for zero-emission treatment of desulfurization wastewater. The method comprises: adding calcium hydroxide to desulfurization wastewater treated by a triple box, adjusting the pH value to achieve more than 11 to form magnesium hydroxide; precipitating, and removing the magnesium hydroxide and insoluble calcium hydroxide; adding sodium sulfate to generate calcium sulfate, precipitating, and removing the calcium sulfate; adding sodium carbonate to form calcium carbonate, precipitating, and removing the calcium carbonate; sequentially carrying out ultra-filtration treatment, nano-filtration salt separation treatment and reverse osmosis concentration treatment; and carrying out evaporation concentration crystallization treatment to obtain a sodium chloride crystal. The apparatus comprises a magnesium removal reaction box, a precipitation box, a coarse calcium removal box, a fine calcium removal box, a suspension concentration box, a tubular ultra-filtration device, a nano-filtration salt separation device, a reverse osmosis device, and an evaporation crystallization device, wherein thedevices are sequentially connected. With the method of the present invention, the softening cost is reduced, and the complete recycling of water resources and the production of high-quality sodium chloride can be achieved.

The invention discloses a water, fertilizer and pesticide integrated system based on a drip irrigation head and a control method of the system. The water, fertilizer and pesticide integrated system based on the drip irrigation head comprises a drip irrigation head system, a solid dissolution injection system and a liquid injection system, wherein the drip irrigation head system comprises a main irrigation pipeline provided with a first connecting part and a second connecting part sequentially in the water outlet direction, the solid dissolution injection system comprises a spraying, washing and dissolving tank with an opening at the upper part, a spray head is correspondingly arranged above the opening of the spraying, washing and dissolving tank and connected with the main irrigation pipeline at the second connecting part through a water spraying and supplying pipeline, and a spraying tank filtering net is paved in the spraying, washing and dissolving tank; a dissolving solution collecting tank is arranged below the spraying, washing and dissolving tank and connected with the main irrigation pipeline in the first connecting part through a dissolution liquid injection pipeline. Fertilizer application, pesticide application and drip irrigation are really integrated, so that the drip irrigation head becomes a part of the water, fertilizer and pesticide integrated system.

The invention discloses a method for solidifying a traditional Chinese ointment. The method comprises the following steps of: decocting traditional Chinese medical materials according to a traditional method and filtering to obtain extract liquid; standing still at a controlled temperature of 0-10 DEG C for 12-24h and taking and concentrating supernatant fluid to a relative density of 1.30-1.40; drying the concentrated filtrate in vacuum to obtain a solid extract and crushing for later use; dissolving gelatin and rice wine in a water bath of 80 DEG C; then, adding other gels and dissolving; adding crushed extract powder and a proper amount of flavoring agent and honey and uniformly mixing; and pouring in a silicone die and freezing for 2h, demolding, drying in air and packaging. The method for solidifying the traditional Chinese ointment has a simple manufacture process without changing the substance basis of medicament action and is convenient for patients to control dosages by single dosage packages; and the ointment is portable, has suitable softness after being solidified, has the advantages of stable shape at a normal temperature, soft taste without adhesion, single packaging, sanitation, safety, convenience and flexibility for taking and good dissolubility, and can be chewed or taken with hot water.

The invention relates to a preparation method of a halogen-free environmental-friendly synergistic flame retardant phenolic foam composite material. The preparation method comprises the synthesis process of expandable low-viscosity phenolic resin by using phenol, formaldehyde solution, paraformaldehyde, calcium oxide and alkali catalyst, and the preparation process of the halogen-free environmental-friendly synergistic flame retardant phenolic foam composite material, wherein the synthesis process of expandable low-viscosity phenolic resin comprises the following steps of: 1) adding the phenol, the formaldehyde solution and the calcium oxide into a reaction container, 2) adding a first batch of paraformaldehyde and alkali catalyst into the reaction solution, 3) adding the remaining paraformaldehyde and a second batch of alkali catalyst, and 4) adding the remaining alkali catalyst, cooling and discharging the materials to obtain the expandable low-viscosity phenolic resin; and the preparation process of the halogen-free environmental-friendly synergistic flame retardant phenolic foam composite material comprises the following steps of: taking the expandable low-viscosity phenolic resin, adding surfactant, composite curing agent, halogen-free environmental-friendly flame retardant, carbonizing agent and synergist, evenly agitating, finally adding physical foaming agent, evenly agitating the mixture and foaming, curing and molding the mixture to obtain the product. The preparation method has the advantages of simple process, high product stability and wide application scope.

The invention discloses a preparation technology for multi-process combined printing The preparation technology comprises the following process steps: grey cloth is subjected to whitening, presetting, dyeing, napping, setting, direct printing, drying, aging, washing, reduction clearing, washing, drying and setting, wherein direct printing comprises steps of discharge printing, burnt-out, gold printing and glue pressing; printing paste for discharge printing is prepared from a disperse dye, 5%-10% of a thickener, 1%-3% of a pH regulator, 1%-3% of a levelling agent and water; discharge paste is prepared from paste, 5%-10% of a thickener, 25%-40% of a discharging agent HB, 1%-3% of a reduction protective agent, 1%-5% of a discharge assistant ZB, 1% of citric acid and water; the burnt-out paste is prepared from 5%-15% of a NaOH alkaline agent, 25%-40% of an alkali-resisting paste, 2%-5% of a penetrant and water. Compared with a traditional technology, the preparation technology omits four times of high-temperature drying processes and four times of washing processes, the process steps are reduced greatly, and the prepared fabric feels good and has better three-dimensional sense.

The invention relates to a preparation method of TiB2 / C gradient cathode material for an aluminum electrolytic bath, which belongs to the technical field of electrolytic aluminum. The adopted raw materials comprise TiB2, carbon aggregate and cementing agent. The procedure is continuous dosing, continuous mixing and paving and adopts the sequence as follows: the content of the TiB2 in each layer sequentially increases and changes from a bottom layer to a surface layer, and the content of the carbon aggregate sequentially reduces and changes; or the content of the TiB2 sequentially reduces and changes, and the content of the carbon aggregate sequentially increases and changes; the materials paved layer by layer are hot-pressed and sintered, and then are naturally cooled to the room temperature so as to obtain the product. Because micro components of the materials prepared by the invention sequentially change, the invention can better solve the problems of easy coating shedding and the like caused by thermal mismatching of carbon and TiB2; meanwhile, the cathode material has strong sodium corrosion resistance, can remarkably improve the current efficiency of the electrolytic bath, and prolongs the service life of the electrolytic bath.

The invention discloses an automatic device for color matching of electrophoretic coatings. The automatic device comprises a base, first supporting column are symmetrically fixed to the top of the base, a mixing box is fixed to the tops of the first supporting columns, and stirring blades are symmetrically and rotatably connected to the inner wall of the bottom of the mixing box through bearings.By the arrangement of the stirring blades, gears, a driving motor, a turntable, a connecting rod, a strip-shaped plate, a vertical rod, cross rods and rack plates, the stirring blades can rotate forwards and backboards ceaselessly in the mixing box, then different coatings can be fully mixed together, thus, not only can the working intensity of workers be reduced, but also the colors of the coatings can be matched more uniformly; by installing liquid level sensors on the inner walls of the bottoms of coating storage boxes, installing PLC controllers on the tops of the coating storage boxes andinstalling solenoid valves on one side walls of feeding tubes, the use quantity of different coatings can be controlled, and more perfect electrophoretic coatings can be obtained after matching.

The present invention relates to a preparation method of a three-dimensional graphene / phase-change heat conduction composite material. The preparation method uses graphene oxide as an emulsifier, and the graphene oxide is mixed with phase-change materials to prepare a graphene oxide / phase-change material emulsion, the graphene oxide / phase-change material emulsion is used as a template, and the template is subjected to a hydrothermal reduction reaction, thereby obtaining the three-dimensional graphene / phase-change heat conduction composite material. Compared with the prior art, the three-dimensional graphene / phase-change heat conduction composite material is simple in preparation method, good in economic efficiency and good in repeatability, can effectively improve the thermal conductivity and thermal stability of phase-change composite materials, can effectively solve a technical problem of easy leakage, is suitable for industrialized production, and has good application prospects.

Disclosed are a method and a system for detecting flock fractal features in water in different spatial dimensions. A column precipitator is provided with a mud hole at the bottom and a water inlet at the top, a sampling pipe is connected with the side of the column precipitator close to the water inlet, the sampling pipe is provided with a screw valve, a machine vision LED backlight source is arranged on one side of the column precipitator, a telecentric lens is connected with a CCD camera, the CCD camera is fixed on a horizontal testing platform, and an acquiring system composed of the horizontal testing platform, the telecentric lens and the CCD camera is arranged on the observation side of the other side of the column precipitator. The CCD camera is connected with an industrial control machine via a data line, a display is connected with the industrial control machine, one end of the sampling pipe is connected with the column precipitator, and the other end of the sampling pipe is provided with a sampling inlet.

The invention discloses a method for preparing a high-smelting-point hard particle dispersion strengthened copper-base composite material by liquid-phase sintering. The method is composed of four main steps of preparing mixed powder, preparing a copper-base composite material pre-fabricated blank, carrying out liquid-phase sintering under a stable and constant magnetic field and cooling a dense high-strength copper-base composite material billet. The liquid-phase sintering is used for endowing the copper-base composite material with the highest strength and density; meanwhile, the constant magnetic field is used for improving the viscosity of a copper melt in the liquid-phase sintering; a magnetic field force and a Lorentz force are used for inhibiting the movement of high-smelting-point hard material particles in copper liquid and preventing clustering and layering of the high-smelting-point hard material particles so as to prepare a high-strength and high-conductivity copper alloy billet with excellent mechanical property and conductivity. The invention further provides a high-strength and high-conductivity copper alloy sintering device which comprises a heating and heat insulation device, an atmosphere control device and a stable and constant magnetic field generation device. According to the invention, the technical target of guaranteeing the high strength and the high conductivity of the copper-base composite material can be reached and a great industrial application value is realized.

The invention discloses an image recognition based three-way catalytic converter cleaning system with a controllable cleaning dosage and belongs to the field of automobile detection and repair. The three-way catalytic converter cleaning system comprises an image acquisition and blowdown air-drying integrated device and a cleaning device, wherein the image acquisition and blowdown air-drying integrated device comprises a snake-shaped endoscope as well as an image processing unit, an air pump and a hose which are arranged in a computer; the cleaning device comprises an air pump I, hoses I, a spray pipe, a water pump and a spray nozzle. The three-way catalytic converter cleaning system can solve the current problems about three-way catalytic converter cleaning and can clean the three-way catalytic converter without disassembly of an engine; the pollution degree of the three-way catalytic converter is determined through analysis processing of acquired images, the dosage of a cleaning agent can be controlled effectively, the environment is protected, and the cleaning quality is improved; complete cleaning can be realized with adoption of the image acquisition and blowdown air-drying integrated device, and a user can observe the cleaning effect directly.

The invention discloses an anodizing-assisted low-temperature glass brazing method which aims at mainly solving the problem that in the process of using low-temperature glass brazing for brazing, spreading wetting is insufficient due to poor chemical compatibility of the brazing and base metal or low brazing temperatures and large fused glass brazing viscosity. The brazing method comprises the steps that firstly, low-temperature sealing ground glass is put into a mold to be smelted into a block, and a low-temperature glass block is obtained; secondly, the low-temperature sealing glass block is cut into slices, and base metal to be brazed is cut and molded; thirdly, a brazing piece is subjected to ultrasonic cleaning and grinding; fourthly, the brazing piece is subjected to anodizing and hole sealing treatment; fifthly, the slice-shaped low-temperature glass brazing is put at the to-be-connected position of the brazing piece; and sixthly, heating is conducted for melting brazing paste, heat preservation is carried out, and then the brazing piece is cooled along with a furnace. The slice-shaped low-temperature glass used in the method is low in sealing temperature and small in coefficient of linear expansion, an obtained brazing connector is free of macroscopic defects such as cracks and air holes and high in strength, and meanwhile an oxidation film formed through anodizing has a good protection effect on the base metal.

The invention belongs to the technical field of artificial cornea production and more particularly provides an active regenerating artificial cornea implant and a preparation method thereof. The artificial cornea implant comprises 5-30 shares of chitosan, 5-30 shares of collagen, 0.1-0.5 share of chondroitin-sulfuric acid, 5-10 shares of polyethylene glycol, 5-25 shares of polyvinyl alcohol and 15-80 shares of triple-distilled water; preferably the artificial cornea implant also comprises appropriate amount of cornea cell growing factor, fibronectin and laminin. The preparation method of the active regenerating artificial cornea implant is as below: dissolving the chitosan, the collagen and the chondroitin-sulfuric acid in hydrochloric acid, acetic acid and water respectively, and then infusing the mixture of the components which are agitated uniformly at the room temperature into a mould for drying, and then obtaining the product after water immersion, cleaning and drying. The artificial cornea implant has good biocompatibility, high substance rigidity and good transparency; the preparation method is easy to be operated, the raw materials are easy to be obtained and are cheap, and large-scale industrialized production can be performed.

The invention discloses a preparation method of a biochar-based composite material, and the preparation method comprises the following steps: firstly mixing, stirring and lyophilizing self-made orangepeel powder and a urea solution to prepare pretreated orange peel powder; mixing the pretreated orange peel powder and rectorite powder to put into an inert gas for calcination treatment, and performing ball-milling and sieving in a nitrogen-containing atmosphere, pickling, washing, filtering and drying to obtain the biochar-based composite material. The biochar-based composite material has goodstability, large adsorption capacity, strong adsorption capacity, simple preparation method and low preparation cost.

The invention belongs to the LED packaging field and discloses a white light LED and a manufacturing method. The white light LED comprises a substrate, an LED chip and a light transmission shell. TheLED chip is arranged on a substrate surface and is coated with a fluorescence colloid formed through mixing a colloid matrix, a fluorescent powder and a quantum dot composite material. The quantum dotcomposite material is formed by quantum dot particles and high heat conductivity coefficient material particles. The light transmission shell is arranged above the substrate. The LED chip and the fluorescence colloid are sealed inside and a packaging glue is filled between the light transmission shell and the fluorescence colloid. The method comprises the following steps of installing the LED chip on an upper surface of the substrate; dispensing the fluorescence colloid above the LED chip, heating and curing; nesting the light transmission shell above the LED chip and the fluorescence colloid; and filling the packaging glue in a gap between the fluorescence colloid and the light transmission shell and curing, and then acquiring the white light LED. In the invention, a work temperature ofthe white light LED can be effectively reduced, amounts of the fluorescent powder and quantum dots are decreased and cost is reduced.