12results about How to "Prevent oxidation failure" patented technology

This invention relates to a fully bio-based biodegradable plastic granule and its preparation method, belonging to the field of plastics technology. The invention first involves in-situ mineralization and deposition of nano-calcium carbonate from cellulose nanocrystals, followed by oxidative activation and covalent grafting of gallic acid. Then, using a blend of polylactic acid and polyisosorbate carbonate as a matrix, it is combined with self-made modified nano-cellulose and limonene dioxide through low-temperature extrusion and high-temperature high-shear treatment, constructing a three-dimensional cross-linked network through epoxy ring-opening, coordination, and hydrogen bonding. This invention relies on the synergistic toughening effect of rigid calcium carbonate-flexible cellulose and the cross-linked network, the synergistic heat resistance of the isosorbide framework and the cross-linked network, and the long-lasting antibacterial and antioxidant effects of the grafted gallic acid. All components are biodegradable natural metabolites. The plastic granules prepared by this invention exhibit excellent biodegradability, mechanical properties, heat resistance, and antibacterial effects.

The application discloses a semiconductor-dielectric-conductor type attenuation porcelain and a preparation method thereof, and relates to the technical field of electromagnetic wave absorption and attenuation materials. The attenuation porcelain is composed of a semiconductor phase, a dielectric phase, a conductor phase, a sintering aid and a binder; the conductor phase has a core-shell structure of a nickel-cobalt-cerium alloy solid solution inner core, a nitrogen-doped amorphous carbon intermediate layer and a silicon dioxide shell, and cerium atoms are doped in the nickel-cobalt alloy solid solution lattice in the form of lattice distortion. The preparation method comprises the following steps: preparation of a precursor solution, limited silicon dioxide coating, limited in-situ reduction and defect construction, mixing and forming, and high-temperature sintering. Through the synergistic effect of the semiconductor phase, the dielectric phase and the core-shell conductor phase, the application realizes comprehensive enhancement of impedance matching, interface polarization, conductive loss and multiple scattering attenuation, and can improve the high-temperature stability and electromagnetic wave attenuation performance of the attenuation porcelain.

The embodiment of the invention provides a solar cell, a preparation method thereof and a photovoltaic module, relates to the technical field of photovoltaics, and aims to improve the contact performance and transmission performance of grid lines. The solar cell comprises a cell substrate, a first grid line, a protective layer and a second grid line, the first grid line is electrically connected with the cell substrate, and the protective layer covers the first grid line. At least part of the second grid line is arranged on the side, away from the battery substrate, of the protection layer, and the second grid line is electrically connected with the battery substrate and the first grid line. The first grid line comprises a first sub-grid line and a second sub-grid line which are connected, the first sub-grid line extends in the first direction, and the second sub-grid line extends in the second direction. The sectional area of the first sub-grid line is larger than that of the second sub-grid line. The second grid line comprises a third sub-grid line, the third sub-grid line extends in the first direction, and the sectional area of the third sub-grid line is larger than that of the second sub-grid line. Solar cells may be applied in photovoltaic modules to convert light energy into electrical energy.

The invention provides a preparation method of a P-type InP ohmic contact electrode, and relates to the technical field of InP device manufacturing, and the method comprises the steps: providing a P-type InP wafer material, and carrying out the cleaning of the surface of the P-type InP wafer material; depositing an ohmic contact layer on the surface of the P-type InP wafer material; sequentially depositing a first metal layer, a second metal layer and a third metal layer on the ohmic contact layer; and carrying out two-step annealing treatment on the ohmic contact layer. According to the method, the electrode structure can be stabilized in the annealing process of preparing the ohmic contact electrode, oxidation failure of the electrode material of the ohmic contact part can be effectively prevented in the subsequent technological process, and ohmic contact has better reliability and lower resistivity.

The utility model relates to a toughened glass technical field, more particularly, relate to a kind of low emissivity hollow toughened glass, low emissivity hollow toughened glass includes the first toughened glass plate and the second toughened glass plate of parallel arrangement, and hollow cavity is formed therebetween and fills inert gas.Sealing assembly is arranged around hollow cavity perimeter side, and the core is frame spacer.First wing plate and second wing plate are respectively extended out in frame spacer two sides, first wing plate abuts first toughened glass plate, and second wing plate abuts second toughened glass plate.Frame spacer is close to one side of hollow cavity and sets up sealant layer, and it is set up structural adhesive layer in the side away from hollow cavity, and the design of the first wing plate and second wing plate's spring piece, can be actively adapted to glass plate thermal expansion and cold shrinkage deformation by self elastic bending, greatly reduce the risk that sealing area produces microcrack or gap due to repeated temperature change.Obvious promotion glass in complex thermal environment under long-term sealing reliability and service life.

The utility model relates to burner technical field, concretely relates to a burner with backfire avoidance structure, including burner main part, the one side fixed connection of burner main part has the cannon barrel, the inside of burner main part is provided with the steady flame disc, and the steady flame disc is fixedly installed with the igniter needle and the spray gun, and the end of igniter needle far away from the steady flame disc and the end of spray gun far away from the steady flame disc can slide and extend out of burner main part. Through the first displacement mechanism cooperation power piece drive steady flame disc, igniter needle and spray gun far away from cannon barrel, quickly evacuate combustion chamber and peripheral high temperature area, avoid backfire flame direct contact igniter needle and oil nozzle, prevent igniter needle electrode oxidation failure, oil nozzle fuel passage coking block, solved the burner combustion chamber and the flow through cavity intercommunication, the cavity residual gas is easy because high temperature backfire when stop using, if fuel spray gun, igniter needle and steady flame disc have not evacuated, can cause igniter needle failure, oil nozzle block technical problem.

The invention relates to a double-agent hair dye and a use method thereof. The hair dye takes a melanin precursor as a dye intermediate, the double-agent type hair dye comprises an agent I and an agent II, and the agent I comprises the melanin precursor and an aqueous medium; the agent II comprises an alkaline agent and an aqueous medium, and the pH value of the agent II is 8-14; the double-agent hair dye further comprises a surfactant and a thickening agent, and the surfactant and the thickening agent at least exist in the agent I. According to the double-agent type hair dye, the alkaline agent and the dye intermediate mainly playing a hair dyeing role are divided into two agents, the agent I containing the dye intermediate is firstly used in the hair dyeing process, then the agent II containing the alkaline agent is used, and compared with a single-agent type hair dye, the double-agent type hair dye has the advantages that the coloring effect is better, the dyeing uniformity is better, and the product is easy to store.

The invention relates to the technical field of tissue engineering, and particularly discloses a pilose antler tissue cell culture method which comprises the following steps: S1, cell in-vitro culture; s2, directional induced differentiation; step S3, ossification induction; the induction culture medium 1, the induction culture medium 2 and the ossification induction culture medium are added, amphotericin B capable of covering the fungal pollution risk is added into the induction culture medium 1, fetal calf serum contained in the induction culture medium 1 can neutralize trypsin, recombinant human HGF contained in the induction culture medium 2 can improve the migration ability of cells, and meanwhile, the ossification induction culture medium can be used for preparing the ossification culture medium. The recombinant human bFGF can synergistically promote proliferation, so that emigrated cells are quickly accumulated, and the situation that the cell density is too low due to insufficient proliferation after emigration is avoided; ascorbic acid-2-phosphate contained in the ossification induction culture medium can avoid oxidation failure of ascorbic acid, and the cell emigration efficiency is improved through the synergistic effect of the substances.

The present invention discloses a composite wire, which comprises a copper core, a stainless steel layer and a silver layer from the inside to the outside. The present invention also discloses a method for preparing the composite wire. In the composite wire of the present invention, part of Ag is replaced by Cu, which reduces the volume fraction of Ag and the preparation cost; stainless steel (SS) is selected as the intermediate material, which is not miscible with Cu and Ag, and is cheaper than Ag and Cu, and has higher strength; at the same time, stainless steel has good high-temperature oxidation resistance, and can also avoid the reaction of Cu and Ag at high temperature, preventing the reduction of electrical conductivity. When preparing the composite wire of the present invention, the stainless steel and the Cu rod are first drawn tightly to obtain a good Cu / SS interface bonding, and then the wire is inserted into an Ag tube for a second drawing to obtain a good SS / Ag interface bonding; the operation is simple, the cost is low, and the volume fraction of the components can be changed to obtain composite wires with different conductivity and strength combinations.

The utility model relates to a flue gas pipeline with a waste heat recovery function, which belongs to the technical field of flue gas pipelines and comprises a flue gas input pipeline, a flue gas filtering box body, a waste heat recovery box body, a water storage tank and a flue gas output pipeline, and the flue gas input pipeline, the flue gas filtering box body, the waste heat recovery box body and the flue gas output pipeline are communicated in sequence. According to the utility model, the high-temperature-resistant filter assembly is arranged and can tolerate smoke at 900-1000 DEG C for a long time, the problem of failure of a traditional organic filter bag due to high-temperature fusion or metal filter bag oxidation can be avoided, and the dust removal treatment can be conveniently carried out on the filter assembly without shutdown by matching with a blowing dust removal system, so that the smoke passing rate is ensured; the heat exchange area can be effectively increased, so that the flue gas waste heat recovery rate is improved, the interception rate of flue gas impurities can be effectively increased through the multi-layer composite filtering structure, and the filtering effect is improved.

The embodiments of the present application provide a composite anode, a method for preparing a composite anode, a display panel and a display device, wherein the composite anode comprises: a first conductive layer; a total reflection layer, arranged on one side of the first conductive layer; a composite material layer, arranged on the side of the total reflection layer away from the first conductive layer, the edge of the composite material layer being connected to the first conductive layer; and a second conductive layer, arranged on the side of the composite material layer away from the first conductive layer, the edge of the second conductive layer being connected to the first conductive layer; wherein the composite material layer comprises indium tin oxide and carbon nanotubes. The composite anode, the method for preparing a composite anode, the display panel and the display device provided in the embodiments of the present application uniformly cover and wrap the exposed peripheral side of the total reflection layer through the composite material layer and the second conductive layer, thereby preventing the total reflection layer from leaking out and being oxidized and failing, thereby achieving the purpose of improving the stability of the anode.

This invention provides a method and apparatus for electrochemical adsorption treatment of perchlorate wastewater, comprising: conveying a fluidized carbon-based electrode slurry to the anode and cathode chambers of the electrochemical adsorption treatment apparatus, and then returning it to the electrode slurry storage tank to form a circulating flow; simultaneously, perchlorate wastewater and concentrate are respectively input into the desalination chamber and concentration chamber, and under the drive of a DC electric field, ions in the wastewater are forced to migrate in a directional manner, thereby achieving the removal of perchlorate ions in the aqueous phase, ensuring that the perchlorate wastewater meets discharge standards, and the treatment process is highly efficient and low-cost. The electrochemical adsorption treatment apparatus disclosed in this invention includes modules such as a cathode end plate, a cathode current collector, a first cation exchange membrane, a desalination chamber partition, an anion exchange membrane, a concentration chamber partition, a second cation exchange membrane, an anode current collector, and an anode end plate. Its equipment has low cost, high desalination rate, and low energy consumption, and has great application prospects in the treatment of perchlorate wastewater.