12183results about How to "Easy to industrialize" patented technology

The invention discloses a graphite powder of the cathode of a lithium ion battery, and a preparation method thereof; the technical problem to be solved is that the transmission speed of a lithium ion and an electrolyte to the inside of the electrode needs to be increased. The graphite powder of the cathode of the lithium ion battery of the invention has the microscopic feature of massive, spherical and near-spherical shapes and has the characteristics of nano-porous. The preparation method thereof comprises the following steps of: grinding, adding coating modifiers or / and catalysts, mixing, dissolving, and carrying out preheating treatment and heat treatment. Compared with the prior art, the invention carries out modifying treatment to graphite material and realizes the characteristic of nano-porous by adding pore-forming agents, thus being beneficial to the transmission of the lithium ion, improving the liquid-absorbing performance of a pole piece after compaction, reducing the content of impurity in the graphite, improving the liquid-absorbing performance and the magnification performance of the graphite material, meeting the requirements of the lithium ion dynamic battery for the compatibility and the charging and discharging performance with large magnification of the electrolyte of the graphite material and having the advantages of lower production cost, simple technique and easy industrialization.

The invention relates to a high-temperature resisting adhesive and a preparation method thereof; the adhesive is formed by the following ingredients: carboxyl contained polyimide resin powder, epoxide resin, curing agent and organic solvent with weight ratio of 1:10-20:0.1-2:20-30. The preparation method of the high-temperature resisting adhesive comprises the following steps: adding the carboxylcontained polyimide resin powder, the epoxide resin and the curing agent into a reaction kettle, heating the reaction kettle to 80-90 DEG C for carrying out stirring reaction for 0.5-1.5 hours, and then adding the organic solvent continuously, and stirring the mixture uniformly at room temperature, thus obtaining the high-temperature resisting adhesive. The preparation method has simple process and low cost and is environment-friendly, the preparation process can be carried out in a general device, thereby being suitable for industrial production.

The invention discloses a large-scale preparation method of a transparent super-hydrophobic / super-amphiphobic coating. The method comprises the steps of ultrasonically dispersing nano particles into an alcohol-water mixed system and carrying out hydrolysis and condensation reaction on the nano particles and fluoride-free or fluorine-containing organosilane under the acid or alkali catalysis action to prepare a transparent suspension liquid of a fluoride-free or fluorine-containing organosilane polymer-nano particle compound; and applying the transparent suspension liquid of the compound on the surface of a substrate material through spraying or dip-coating to obtain the transparent super-hydrophobic / super-amphiphobic coating with good performance. Preparation of the transparent super-hydrophobic / super-amphiphobic coating of 10-100m<2> can be completed within an hour; large-scale preparation of the large-area transparent super-hydrophobic / super-amphiphobic coating is achieved for the first time; the preparation method is low in cost and simple in process; and the prepared coating has excellent super-hydrophobic or super-amphiphobic property, relatively good mechanical stability, chemical stability and environment stability, and has a wide application prospect.

The invention relates to an alicyclic-containing polyimide film. The molecular structure general formula of the film is the right formula, wherein, -CA- is a bivalence connection group of an alicyclic dibasic primary amine, -Ar- is a bivalence connection group of an aromatic dibasic primary amine, and -R- is a bivalence connection group of an aromatic dibasic estolide. The preparation thereof includes: the alicyclic dibasic primary amine and the aromatic dibasic primary amine are dissolved in non-proton organic solvent with strong polarity, the aromatic dibasic estolide is added, the non-proton organic solvent with strong polarity is used for regulating the viscosity of the alicyclic-containing polyamic acid resin solution after reaction for 1-3 hours, forming is carried out in a curtain coating machine, and dehydration fever imidization, cooling and demoulding are carried out so as to obtain the film. The preparation method has mild reaction condition and low cost and is environmentally friendly; and meanwhile, the alicyclic-containing polyimide film has excellent mechanic property and heat resistant property and low water absorption, and the visible light transmission thereof is as high as more than 97%. The film has good application prospect in the fields of optical waveguide material, photorefractive material and photoelectric material in optical communication field and direct action membrane material in the liquid crystal display field and the like.

The present invention provides a method for constructing a universal LED bulb, a snap ring structured LED bulb and a lamp. The constructing method comprises: supporting an optical engine core member of the LED bulb in the lens snap ring (8) using a lens snap ring (8) as a supporting main body, using an inner snap ring (81) provided on the inner side of a light distribution optical lens (7) in the optical engine core member as an auxiliary supporting structure, and further using the inner snap ring (81) as an installation base of an optical engine module (4) and a heat conductive bracket (3) or an installation base of an LED bulb radiator (103); the optical engine core member of the LED bulb is composed of the heat conductive bracket (3), the optical engine module (4), the inner snap ring (81) and the light distribution optical lens (7).

The invention relates to a full aromatic fluorine containing transparent polyimide film. Structural formula of molecule thereof is shown above, wherein -R1 is a divalent residue of fluorine containing aromatic binary primary amine, and -R2 is a divalent connecting group of aromatic binary anhydride molecule. The preparation method thereof comprises steps of adding the fluorine containing aromatic binary primary amine and strongly polar non-protonic organic solvent into a polymerizing bottle, stirring at room temperature, after being completely dissolved, adding the aromatic binary anhydride, stirring, after 3 hours reaction, obtaining transparent and thick fluorine containing aromatic polyamide acid resin solution having homogeneous phase; and using the strongly polar non-protonic organic solvent to regulate viscosity of the fluorine containing aromatic polyamide acid resin solution, forming film, heating, carrying out dehydrating hot-imidization reaction, cooling, demoulding, thus obtaining the full aromatic fluorine containing transparent polyimide film. The preparation method has mild reaction condition, simple operation and low cost and is environment friendly. The full aromatic fluorine containing transparent polyimide film has excellent mechanical property and heat tolerance and visible light transmission thereof is up to 95%.

The invention relates to a nutrient healthcare product and a method for preparing the same, in particular to a compound vegetable healthcare product and a method for preparing the same. The compound vegetable nutrient powder of the invention consists of the following components in part by weight: 0.1 to 100 parts of dried vegetable powder, 0 to 10 parts of alga-type plant regulating powder, 0 to 96 parts of auxiliary component, 0 to 5 parts of natural flavoring agent and 0 to 5 parts of food additive. The preparation method adopts a simple production process and is suitable for industrialized production, and the product prepared by the method is rich in nutrition and stable in quality, meets the demands of people on various nutrients, regulates the intestines and stomach, improves enterogastric peristalsis, enhances in vivo metabolism of sulfur-contained substances, avoids the adverse effects of human body caused by malnutrition and unbalanced nutrition and prevents and helps to treat diseases such as ulcerative stomatitis, diabetes and constipation. The product has also the advantages of convenience for carrying and long storage period.

The invention discloses a preparation method of a graphene material. The preparation method comprises the following steps of: with graphite carbon as a raw material, adding potassium hypermanganate and concentrated sulfuric acid in batches in different stages to control an oxidation process of graphite; adjusting the pH value of the oxidized solution to obtain graphene oxide colloidal dispersing solutions (GOS) with different concentrations; dropwise adding the GOS on the surface of a carrier or spreading out the GOS on a non-intersolubility liquid / liquid interface and drawing into a grapheneoxide thin-film (GOF); carrying out high-speed centrifugation and drying treatment on the GOS to obtain graphene oxide solid powder (GOP); reducing the GOS by selecting an appropriate reducing agent,and centrifugally drying to obtain reduced graphene solid powder (GRP); dispersing a proper amount of GRP in an organic solvent to prepare a reduced graphene oxide colloidal dispersing solution (GRS); and dropwise adding the GRS on the surface of the carrier or spreading out on the non-intersolubility liquid / liquid interface and drawing into the reduced graphene thin-film (GRF). Various graphene materials prepared by the invention are easy to mutually transform; and the concentration of the colloidal solution and the thickness of the thin-film can be controlled in a certain range.

The invention related to a polyimide film with high visible light permeability, molecular structure formula of which is: (shown in figure). Preparation comprises steps of: dissolving primary diamine in a strongly polarnon-proton solvent, cooling the same by cold water to 5 DEG. C to 10 DEG. C, adding aromatic dianhydride, mixing, reacting 4h to 10h at 5 DEG. C to 10 DEG. C, acquiring homogeneous, transparent, sticky polyamic acid resin solution; wherein mol number of aromatic dianhydride is equal to that of primary diamine; adjusting viscosity of polyamic acid resin solution by N,N-dimethyl acetamide, forming film in a casting machine, heating to raise temperature, processing dehydration heat imidization, cooling, deciduating to acquire homogeneous and transparent polyimide thin film. The preparation method has mild reaction condition, sample to operate, low in cost and environmental friendly; mechanical property and thermal stability of the polyimide thin film are excellent with high visible light permeability reaching 94% and film thickness 50 micrometers.

The invention belongs to the technical field of recovery of lithium-ion batteries and particularly relates to a method for recovering a waste / used lithium iron phosphate positive-pole material by an acid leaching method. The method provided by the invention comprises the following steps: (a) carrying out acid leaching: adding acid into the lithium iron phosphate positive-pole material for acid leaching so as to obtain a suspension, and carrying out filtration, so as to obtain filtrate; (b) carrying out oxidation: adjusting the pH value of the filtrate obtained in the step (a) to be smaller than 1, and adding an oxidant into the filtrate to oxidate ferrous ions in the filtrate into ferric ions, so as to obtain a mixed solution; (c) carrying out separation: adjusting the pH value of the mixed solution obtained in the step (b) to be 1.5 to 4, carrying out a reaction for 1 to 3 hours at the temperature of 60 DEG C to 95 DEG C so as to produce ferric phosphate precipitates, and carrying out filtrating and washing, thereby obtaining lithium-containing filtrate and ferric phosphate. The method provided by the invention is simple in process, continuous in cycle, low in cost and easy to industrialize and is environmentally friendly; the recovery rate of Li, Fe and P reaches 95% or more, subsequent prepared FePO4 is low in impurity content, the particle size is 1 to 6 microns, is uniform and is narrow in distribution, and the morphology is controllable, so that the FePO4 is battery-grade ferric phosphate.

A prepn. method of silicon thin film heterojunction solar cell includes following steps: cleaning substrate, semiconductor cleaning technology is used to do primary cleaing to substrate surface, then do ultrasonic cleaning in deionized water several times; nitrogen blow drying; prepare nitrinsic amorphous silicon layer by heater chemical vapour phase depositing technology, tungsten filament temp. is measured by pyrometer, temp of heater and sample are determined separately by two electric thermo-couples, temp. is controlled by electric temp. controller; to react and grow thin film on substrate surface; to redeposit a transmitting layer on intrinsic amorphous silicon thin film; front and back electrodes forming, sputtering technology is used to form front and back electrodes; finally to proceed vacuum heat annealing process. The thin film produced by the invention has illumination stability, the photoconduction gain can reach to 10 to the power 6 on Am1.5 100mW / cm2 standard illumination.

The invention belongs to the field of material science and particularly relates to a graphene oxide / cellulose compound material as well as a preparation method and application of the material. The compound material is prepared by mixing graphene oxide suspension and alkaline solution of cellulose, and forming a compound structure of the graphene oxide and the cellulose under the action of mechanical stirring, shearing, ultrasonic or the like. In the preparation method, raw materials are cheap and easy to obtain, a water system is simple and free of pollution, equipment is simple and low in cost, and the industrial preparation is easy to realize; and the prepared compound material has the properties of fiber and the graphene oxide and is widely applied.

The invention provides a preparation method of a high-efficiency catalyst for synthesizing vinyl acetate by an acetylene method. The oxidant is used to oxidize the surface of activated carbon used as a catalyst carrier to change the oxygen-containing functional groups on the surface of the activated carbon and improve its original pore structure, thereby effectively improving the loading capacity of the active component zinc acetate and significantly improving the catalyst efficiency. The invention has the advantages of cheap and easy-to-obtain raw materials, simple operation, high loading capacity of catalyst active components, good activity and long service life.

The invention provides mRNA and a vaccine for coding a SARS-CoV-2 viral antigen and a preparation method of the vaccine, and relates to the technical field of vaccines. The mRNA for coding the SARS-CoV-2 viral antigen at least contains at least one of S protein and N protein for coding SARS-CoV-2 virus and / or a coding region of a fragment of the at least one protein, and the mRNA is delivered intoa body to enable the body to generate an immune reaction.

The invention discloses a colorless and transparent aromatic polyimide film which has the general formula of molecular structure as follows; the preparation thereof includes: aromatic primary amine and aromatic acid anhydride with specific molecular structures are adopted for polymerization in a strong polar aprotic organic solvent system within the temperature range of 0 DEG C to 35 DEG C to prepare a colorless and transparent viscous polyamide acid solution with homogeneous phase. Viscosity adjustment, casting for forming the film, heating for rising temperature and solvent removal are carried out simultaneously when partial imidization reaction is carried out, and then demoulding and stretching, further deep thermal imidization and rolling are carried out to obtain the colorless and transparent aromatic polyimide film. No special production equipment is required by the invention so that production can be carried out on the conventional production line of the polyimide film and the polyimide film is applicable to industrialized production.

Using metal bonding technique in diffusion bonding form, the method bonds gallium nitride LED developed and prepared on sapphire and silicon chip in low resistance together, and realizes ohmic contact. Advantages are: stable bonding technique, high ratio of good produced parts, small area, using material of luminous layer fully, as well as good conductivity and heat conductivity of substrate.

The invention relates to an anode active material, a preparation method of the anode active material, high-performance anode slurry containing the anode active material, and an all-solid-state lithium ion battery. The anode active material is a nickel-rich type core-shell structure particle or a nickel-rich type core-shell structure particle coated with an inorganic compound coating layer at the surface; an inner core of the nickel-rich type core-shell structure particle is LiNixCoyMn1-x-yO2; the shell is nickel cobalt lithium aluminate. The invention also provides the high-performance anode slurry, which comprises the anode active material, a composite conductive agent, a composite bonding agent, an additive and an organic solvent, wherein the additive is sulfide solid electrolyte; the anode slurry is used for preparing an anode plate consisting of an anode current collector, an anode slurry layer and a modification layer; the anode plate, the sulfide solid electrolyte and a cathode plate are assembled into the all-solid-state lithium ion battery. The all-solid-state lithium ion battery has the prominent advantages of high mass specific energy, high volumetric specific energy, good rate capability, good cycle performance, high safety and the like, and has wide application prospects.

This invention supply a epoxide resin combination and its preparation method, and its application as filling material of railway plate type orbit convex shape block platform. It takes ethoxyline resin, pigment, padding, curing agent and other accessory ingredient as main ingredient. This ethoxyline resin combination possess good construction usability, good cement bond property, appropriate elasticity and syntheses mechanical property, and has performance of ultraviolet radiation proof, moisture-proof.

The invention relates to a graphene nylon composite material and a preparation method thereof. The graphene nylon composite material comprises, by mass, 30%-85% of nylon, 1%-25% of graphene, 0.5%-4% of a wear-proof agent, 5%-45% of heat conduction filler, 1%-15% of a lubrication dispersing agent and additives including at least one of 15%-45% of a reinforcing agent, 2%-25% of a toughening agent, 5%-30% of a fire retardant and 0.02%-8% of auxiliaries. Due to addition of graphene, the graphene nylon composite material is excellent in abrasion resistance and heat conductivity.

The invention provides an integrated flow path chip device used for digital nucleic acid amplification. The device is composed of a vacuum system, a pipeline, a sucker, a sealing cover layer and a reaction layer, wherein two ends of the sealing cover layer are respectively provided with a sample inlet and a sample outlet; a path is formed between the sealing cover layer and the reaction layer; the reaction layer is provided with small reaction chambers; the sucker is arranged on the sample outlet; the vacuum system is connected with the sucker via a pipeline; and the sample inlet and the sample outlet are sealed by adhesive tape paper. According to the integrated flow path chip device, trace reaction samples can be distributed to thousands of small reaction chambers, and mineral oil is led in via a path in the sealing cover layer to separate thousands of small reaction chambers so as to realize the single molecule amplification and precisely quantify the nucleic acid molecules. The device is reasonable to design and is a minitype device used for digital nucleic acid amplification, which has low cost and is easy to operate.

The invention relates to a trichoderma harzianum composite bacteria culture and application of the same in the aspect of plant protection, and belongs to the technical field of biology. The strain of the trichoderma harzianum composite bacteria culture is preserved in the China General Microbiological Culture Collection Center (CGMCC), and classified and named as Trichoderma harzianum MDCGTH 18, with a preservation number of CGMCC NO.2965. The Trichoderma harzianum MDCGTH 18 composite bacteria culture utilizes antagonistic microbes for biological prevention and treatment, simultaneously has the functions of inducing the disease resistance of plants and increasing the yield, has obvious effect of controlling aspen root rot, apple root rot, citrus yellow shoot, watermelon fusarium wilt, tobacco bacterial wilt, wheat scab, full rot, root rot, banded sclerotial blight, cucumber powdery mildew, downy mildew, vegetable gray mold, fusarium wilt and various other epidemic diseases, can be independently taken as a biological control microbial inoculum for plant diseases, and can also be mixed with other biological antiseptics, plant antibiotics, plant growth regulators and the prior antiseptics to prepare various biological antiseptics for controlling different plant diseases.

The invention discloses lutein ester microcapsule powder and a preparation method thereof. The preparation method comprises the following steps of: preparing an oil phase solution and a water phase solution respectively, and mixing and emulsifying the oil phase solution and the water phase solution; and non-water raw materials comprise the following components in part by weight: 1 part of lutein ester crystal, 0.05 to 0.1 part of oil phase antioxidant, 0.02 to 0.1 part of oil phase emulsifying agent, 0.05 to 1 part of plant oil, 0.5 to 25 parts of wall material, 0.1 to 0.5 part of water phaseemulsifying agent, 0.05 to 1 part of water phase antioxidant, and the balance of filler. In the preparation method for the lutein ester microcapsule powder, the oil-soluble lutein ester is fully dispersed in cold water in the form of sub nanometer particles, and the product can be self-emulsified in water, and is good in instant capacity and self-emulsification capacity, and high in stability, and has uniform and durable color; and the phenomena of oil floating, precipitation, adhesion to a bottle wall and the like are avoided during application. Organic solvents are not introduced in the powder, so solvent residues are avoided in the product. The production process is environment-friendly, simple and practicable, expensive equipment is not needed, and the microcapsule powder can be industrially produced easily and conveniently.

The invention is applicable to the field of novel materials, and provides a silicon carbon composite negative electrode material for a lithium ion battery, as well as a preparation method and applications of the material. The negative electrode material is of a nuclear-shell-type composite structure, and consists of nano silicon in the core, amorphous carbon at the middle layer and a one-dimensional nano carbon material at the outermost layer, wherein the amorphous carbon at the middle layer forms an elastic loose surface structure, and thus the circulating performance and multiplying performance of silicon are improved; a network structure built by the one-dimensional nano carbon material at the outermost layer not only plays a role in buffering mechanical stress, but also provides a rapid electric conducting channel for active silicon particles, and improves the circulating performance and multiplying performance of silicon further; and meanwhile, a three-dimensional electric-conducting heat-conducting network formed by the one-dimensional nano carbon material can conduct heat generated by a battery during the discharging process to the space around, and the safety performance of the battery is improved. The preparation method of the silicon carbon composite negative electrode material for the lithium ion battery is simple and feasible in process, environment-friendly and energy-saving, low in cost, and easy for industrialization.

The invention discloses a high-purity fishy smell and foreign odor-free fish collagen protein peptide and a preparation method thereof. The preparation method comprises the following steps: cleaning fish skins, and then cutting into blocks and mincing; performing stirring treatment with NaCl solution; centrifugally degreasing to remove paraprotein; adding water to regulate the pH value of initial slurry to be 8.0-8.5; performing combined gradient enzymolysis on alkali protease and neutral protease; deactivating enzyme after the enzymolysis is ended; performing adsorption bleaching by activated carbon; and then performing rough filtration, fine filtration, evaporation concentration and spray drying to prepare the high-purity fishy smell and foreign odor-free fish collagen protein peptide. The high-purity fishy smell and foreign odor-free fish collagen protein peptide disclosed by the invention has a simple process and is easy to industrial production; fishy smell, foreign odor and non-collagen proteins are fully removed in production; the low-temperature biological enzymolysis technology is adopted, and other substances are not added, thereby, the product quality is improved; an obtained fish collagen protein peptide powder has the characteristics the content of amino acid hydroxyproline is not less than 9 percent, and the average molecular weight is lower than 1000Dal; no fishy smell or foreign odor cannot generated, and obvious fishy smell or foreign odor also cannot be generated through heating treatment under the acid conditions. The high-purity fishy smell and foreign odor-free fish collagen protein peptide can be widely applied to processing of various foods and cosmetics as a green functional ingredient.

The invention relates to an injection anticancer long circulating targeting liposome which is characterized in that anti-angiogenic drug is combined with anticancer drug, the liposome modified by polypeptide with tumor targeting function and hydrophilic polyethyleneglycol is adopted for loading and transporting the two drugs to tumor positions, and the tumor curative effect is enhanced through the different releasing rates and action mechanism of the two drugs.

The invention relates to a method for recovering noble metals from spent automotive exhaust catalysts, comprising the following processes: 1. mixing the spent automotive exhaust catalyst with a reducing agent, an additive and a trapping agent; 2. putting the mixed materials into a clay graphite crucible, and putting the clay graphite crucible into an electric furnace or an electric arc furnace for smelting, thus obtaining a noble metal phase; 3. selectively leaching base metals from the noble metal phase, thus obtaining the enrichment of the noble metal, refining the enrichment of the noble metal to produce platinum, palladium and rhodium products. The method is characterized by simple process flow and high recovery rates of noble metals. The platinum, palladium and rhodium in the waste slag are less than 1g / t and the product purity is 99.95%.

The invention discloses a platinum aluminium oxide series catalyst for preparing propylene by propane dehydrogenation and a preparation method of the catalyst. The catalyst is as shown in a formula PtSnX1X2 / Al2O3, wherein in the formula, the content of noble metal Pt is 0.25%-0.35%, the content of metal Sn is 0.1%-3.5%, the total contents of auxiliaries X1 and X2 are 0.5%-3%, and X1 and X2 are selected from one of K, Ga, Zr, Cu, Mg, Zn, Ba, La, Y, Tm, Fe, Na, Cl, Zn, Ce, Sc and Sb. The platinum aluminium oxide series catalyst provided by the invention has the advantages that propylene dehydrogenation is catalyzed by adopting the catalyst at the reaction temperature of 590-650 DEG C at the pressure of less than 0.25Mpa, so as to obtain stable propane conversion rate and propylene selectivity greater than 95.8% are obtained; the single service life of the catalyst is long, the noble metals are not lost, and the catalyzing property of the catalyst after regeneration is good.

The invention discloses a Fe-based nanocrystalline soft magnetic alloy with strong amorphous forming ability and a preparing method of the Fe-based nanocrystalline soft magnetic alloy. The alloy has an expression of Fe<x>SiBP<c>Nb<d>Cu<e>, wherein in the expression, each of the x, the a, the b, the c, the d and the e shows the atomic percentage content of the corresponding ingredient, and meets the following conditions that the a is greater than or equal to 0.5 but smaller than or equal to 12; the b is greater than or equal to 0.5 but is smaller than or equal to 15; the c is greater than or equal to 0.5 but smaller than or equal to 12; the d is greater than or equal to 0.1 but smaller than or equal to 3; the e is greater than or equal to 0.1 but smaller than or equal to 3; the x is greater than or equal 70 but smaller than or equal to 85; and the sum of the x, the a, the b, the c, the d and the e is 100 percent. The soft magnetic alloy has the advantages that an ordinary copper mold casting method can be used for preparing a Fe-based amorphous alloy with the critical dimension being 3.5mm; after the annealing; the saturation flux density is greater than 1.5T; and the coercive force value is smaller than 1A / m.

The invention discloses a recycling method of high-salinity wastewater. Sodium sulfate and sodium chloride are recycled through three steps of primary evaporative crystallization, cooling crystallization and secondary evaporation crystallization. According to the method disclosed by the invention, sodium sulfate and sodium chloride in the high-salinity wastewater of coal chemical industry can be effectively recycled; the method is simple and stable in technological conditions; industrial popularization is facilitated; the recycled sodium sulfate and sodium chloride meet the quality requirements of industrial products, and can be directly recovered and applied mechanically or sold as byproducts, so that the target of treating the high-salinity wastewater is reached; the requirements of the current environment-friendly situation are met; waste is changed into treasures; resource utilization of salts is achieved; and benefits of factories are improved.