15results about How to "Extended Diffusion Path" patented technology

The invention relates to the technical field of bus ducts, and particularly provides a sealing plate assembly of a heat dissipation type bus duct connection area, which comprises a top plate, a bottom plate and two side plates arranged oppositely, the two side plates are arranged between the top plate and the bottom plate, and the two side plates, the top plate and the bottom plate enclose to form a connection area outer cover space. The top plate comprises lap joint sections located at the two ends of the top plate and a middle section located between the two lap joint sections, and the two lap joint sections are in lap joint with the outer sides of the tops of the adjacent bus duct sections respectively. A heat transfer path is formed between the closing plate assembly on the outer side of the connection area and the adjacent bus duct sections, heat generated in the operation process of the connection area can be diffused to the adjacent bus duct sections, the heat diffusion range is enlarged, local gathering of heat near the connection area is reduced, and the service life of the bus duct is prolonged. And the heat dissipation capability of the connection area is improved, and meanwhile, the sealing protection requirement of the connection area is considered.

The application belongs to the technical field of fertilizers, and particularly relates to a humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate and a preparation method thereof. The humic acid organic-inorganic compound fertilizer comprises the following raw materials in parts by weight: 22-30 parts of biogas residue, 35-55 parts of humic acid, 8-13 parts of fine columnar algae powder, 5-8 parts of urea, 12-17 parts of ammonium sulfate, 12-15 parts of superphosphoric acid calcium, 15-20 parts of potassium sulfate and 10-15 parts of slow release coating suspension. Test results show that the humic acid organic-inorganic compound fertilizer with slow release and improved fertilizer utilization rate prepared by the application can reduce the nitrogen and phosphorus release rates of the humic acid inorganic compound fertilizer, has better slow release effect, significantly promotes the plant height, stem diameter and root length of soybeans and corn, has obvious growth promotion effect, and has wide application prospect.

This invention relates to the field of corrosion protection, specifically to a wear-resistant and corrosion-resistant material and coating, their applications, and a wear-resistant and corrosion-resistant paint, its preparation method, and applications. The wear-resistant and corrosion-resistant material of this invention includes a wear-resistant and corrosion-resistant coating, the composition of which includes: epoxy resin, phenol-modified graphene, filler, nonionic dispersant, and curing agent; the epoxy resin includes phenolic epoxy resin and bisphenol A epoxy resin; the phenol-modified graphene includes graphene oxide and phenolic substances formed on the graphene oxide. The wear-resistant and corrosion-resistant paint of this invention has advantages such as good stability, good brushing performance, and simple construction process; the prepared coating exhibits excellent wear resistance, good acid / alkali resistance, strong adhesion, and good toughness.

The invention discloses kaolin-graphene composite aqueous slurry and a preparation method thereof. The preparation method comprises the following steps: S1, proportioning and mixing: mixing kaolin and amorphous carbon powder to obtain a solid mixture; s2, conductive networking and forming: adding a conductive auxiliary agent into the solid mixture obtained in the step S1, uniformly mixing, and then tabletting or granulating the mixture to obtain a to-be-treated blank; s3, ultrafast carbon heat treatment: carrying out ultrafast carbon heat treatment on two ends of the to-be-treated blank obtained in the step S2 in a negative pressure environment to obtain a composite filler; and S4, wet dispersion pulping: adding the composite filler obtained in the step S3 into a water-phase dispersion medium, and carrying out high-speed shearing dispersion, so as to obtain the kaolin-graphene composite water-based slurry. The waterborne epoxy anticorrosive coating has the advantages that stable dispersion and constructability can be realized in a waterborne system, and a multi-scale layered shielding network is constructed in a coating film, so that the barrier property and durability of the waterborne epoxy anticorrosive coating are improved.

This invention relates to the field of polymer compound technology, specifically to an antibacterial food-grade plastic product for sealing and preservation and its preparation method, comprising an outer support layer and an inner antibacterial layer. The outer support layer is prepared by melt blending raw materials such as PBAT, PLA, and modified nano-calcium carbonate, wherein the mass ratio of PBAT to PLA is 90-100:10-20. The inner antibacterial layer is composed of nano-chitosan, tea polyphenols, essential oil microcapsules, glycerol, and agarose, composited on the surface of the outer support layer. The essential oil microcapsules have a core-shell structure, loading plant essential oils onto mesoporous silica as a carrier, and are coated with calcium alginate on the outer layer. The antibacterial food-grade plastic product prepared by this invention possesses long-lasting antibacterial properties, excellent mechanical properties, and heat-sealing strength, and has broad application prospects in the food packaging field.

The application relates to the technical field of rare earth catalysts, in particular to a high-efficiency nickel-containing nanometer catalyst and a preparation method and application thereof. The preparation method of the high-efficiency nickel-containing nanometer catalyst comprises the following steps: a pre-prepared carrier is obtained by coordination of tetraethyl orthosilicate and carboxyl-terminated polyamide amine; nickel nitrate and yttrium nitrate are added into anhydrous ethanol and stirred uniformly, the pre-prepared carrier is added into the mixture and ultrasonically treated, the pH value of the system is adjusted and stirred, centrifugation, washing, vacuum drying and crushing are carried out to obtain pre-prepared materials; the pre-prepared materials are calcined at 450-500 DEG C, naturally reduced to room temperature, and reduced by introducing a reducing gas in a tube furnace and reduced to room temperature. The application has high-dispersed nickel active sites and a carrier microenvironment, the stable carrier structure endows the catalyst with outstanding anti-sintering and anti-carbon deposition capacity, guarantees the durability of long-term operation, has an excellent application prospect, and is suitable for large-scale popularization and application.

The application relates to the dust removal field and discloses a dust removal device and a dust removal system, which comprise a first cylinder, a second cylinder, a mounting frame, a plurality of insulation assemblies, a discharge electrode and a dust collecting electrode. The first cylinder is connected with an air inlet pipe, the air inlet pipe partially extends into the first cylinder, the air inlet pipe is provided with an air outlet, the air outlet is opposite to the waste gas emission direction, the insulation assemblies are fixedly installed on the peripheral surfaces of the first cylinder and the second cylinder, the two ends of the discharge electrode are respectively installed on the mounting frames at the positions of the first cylinder and the second cylinder, one end of the dust collecting electrode is connected with the first cylinder, and the other end of the dust collecting electrode, which is away from the first cylinder, is connected with the second cylinder. The application prolongs the diffusion path of waste gas and prevents dust backflow by arranging the air inlet pipe with the air outlet opposite to the waste gas emission direction; the air cavity structure is limited by the first cylinder, the second cylinder and the tubular dust collecting electrode, the high-voltage electric field is formed by combining the discharge electrode in the air cavity, and high-concentration sulfuric acid mist aerosol and solid particulate matters are synchronously and efficiently captured.

The application discloses a mesoporous hollow sphere assembly structure catalyst and a preparation method and application thereof, and belongs to the technical field of hydrogen production by methane decomposition. The preparation method comprises the following steps: dissolving Ni salt, Al salt and Ce salt in a solvent, and controlling the molar ratio of Ni, Al and Ce to be 7:(1-2.5):(0.5-2); obtaining atomized liquid drops through atomization, and performing a decomposition reaction on the atomized liquid drops at 400-500 DEG C; collecting reaction products, drying, and then calcining by heating to 550-700 DEG C to obtain a catalyst precursor; and performing reduction treatment on the catalyst precursor in a reducing atmosphere, and the mesoporous hollow sphere assembly catalyst with a cerium-doped regulated interface is obtained. The catalyst exhibits remarkable high mass space velocity long-term stability and anti-coking performance in the methane catalytic decomposition reaction.

The application provides a kind of anticorrosive flame-retardant paint and its preparation method, belongs to the technical field of coating composition, comprising the following steps: S1, preparation WPU-SS emulsion;S2, preparation composite flame-retardant reinforcing material;S3, WPU-SS emulsion and water-based epoxy resin emulsion are mixed uniformly, glass flake, ammonium polyphosphate, composite flame-retardant reinforcing material, titanium dioxide and auxiliary agent are sequentially added, mixed and stirred, then curing component is added, mixed and stirred to obtain anticorrosive flame-retardant paint.The application can improve the flame-retardant performance while having good anticorrosive performance.

This invention relates to the field of ceramic glaze technology, and discloses a high-strength antibacterial ceramic glaze and its processing method. This ceramic glaze is formed by mixing potassium feldspar, calcite, and other materials as base materials, and loaded attapulgite antibacterial materials as additives. During the sintering process, the copper ions in the loaded attapulgite antibacterial material are ablated to form copper oxide. Because the copper oxide is loaded with attapulgite, it avoids agglomeration, thus better exerting its antibacterial properties. Furthermore, the silicon-oxygen bonds contained in the organic modification of the attapulgite form silica sol during sintering. The presence of silica sol significantly improves the hydrophobicity of the glaze layer, thereby effectively improving its cleaning effect. In addition, the copper oxide loaded on the attapulgite surface acts as anchor points. When external force is applied to the glaze layer, these anchor points prevent direct slippage of the lamellae, causing cracks to bypass the anchor points, thereby extending the crack propagation path and achieving a reinforcing effect.

The utility model discloses a hot press for wood boards. The hot press comprises a base, a hydraulic assembly and an autoclaving assembly. The base comprises a base, a mounting plate and a baffle, wherein the mounting plate and the baffle are perpendicularly fixed to the top of the base. The base, the mounting plate and the baffle form a U-shaped structure. The hydraulic assembly comprises a hydraulic cylinder and an extrusion plate, the hydraulic cylinder is fixed to the baffle, and the extrusion plate is fixedly installed at the output end of the hydraulic cylinder. The pressure steaming assembly comprises a plurality of pressure steaming plates arranged at intervals in the length direction of the base, the pressure steaming plates are arranged in a hot pressing space formed between the mounting plate and the baffle in parallel, and the plate face of each pressure steaming plate is parallel to the pressed plane of the extrusion plate and the inner side plane of the baffle. According to the hot press, through the design of the vertical stacked hot pressing space, the hydraulic pressure conduction direction is consistent with the gravity, the interlayer pressure difference caused by the gravity of traditional horizontal equipment is eliminated, it is ensured that all layers of wood boards are evenly pressed, and the problems that the moisture content distribution is uneven, gluing cracks and finished product warping are effectively solved.

The application relates to a bionic three-dimensional electrode and a preparation method and application thereof, and belongs to the technical field of batteries. The bionic three-dimensional electrode comprises an electrode main body and a supporting part. The supporting part is connected with the electrode main body and is symmetrically arranged on both sides of the electrode main body. The number of the supporting parts is at least two, and the supporting parts are parallel to each other. The 3D printing centipede structure bionic three-dimensional electrode provided by the application has simple preparation process, and the battery performance can be improved only by improving the three-dimensional electrode structure, which is beneficial to subsequent commercial production.

This invention provides an oxygen- and water-barrier highly transparent composite film and its preparation method, relating to the field of packaging materials. The oxygen- and water-barrier highly transparent composite film provided by this invention improves the oxygen- and water-barrier properties and light transmittance of carboxymethyl cellulose (CMC) film by filling and crosslinking it with hydrotalcite nanosheets and dialdehyde cellulose. The high aspect ratio of the hydrotalcite nanosheets forms a brick-wall structure within the CMC nanosheets, extending the diffusion path of small gas molecules and thus enhancing the barrier properties of the base film. Dialdehyde cellulose acts both as a crosslinking agent and as a void filler in the "brick-wall structure," further improving the barrier properties of the base film and also contributing to the stability of the CMC film in water. The addition of a low proportion of hydrotalcite nanosheets improves the light transmittance of the base film.

This application belongs to the field of packaging film technology, specifically providing a modified PE film and its preparation method. A modified PE film comprises the following components: a PE film, a modified polyvinyl alcohol coating solution, and zinc stearate; the modified polyvinyl alcohol coating solution is prepared by mixing polyvinyl alcohol, tannic acid, and nano-hydroxyapatite. The modified PE film obtained by this application has good mechanical properties and barrier properties.