9results about How to "Stable mechanical strength" patented technology

The invention provides a grease hydrodeoxygenation catalyst and a preparation method and application thereof, the preparation method comprises the following steps: mixing an aluminum-containing inorganic porous material, an acidic solution, an extrusion aid, a magnesium salt and a nickel salt, then carrying out extrusion molding to obtain a carrier precursor, and drying and roasting the carrier precursor to obtain a hydrodeoxygenation composite carrier; by taking the total weight of the carrier as 100%, the content of the magnesium element is 0.5-10%, and the content of the nickel element is 0.3-2%; dipping the hydrodeoxygenation composite carrier with a dipping solution containing active metal, and then drying and roasting to obtain the grease hydrodeoxygenation catalyst. When the hydrodeoxygenation composite carrier is prepared, magnesium salt and nickel salt are combined, and the hydrodeoxygenation composite carrier with a nickel-doped magnesium aluminate spinel structure can be obtained. The hydrodeoxygenation composite carrier has good hydrothermal stability and mechanical strength. The grease hydrodeoxygenation catalyst prepared by loading an active metal component on the hydrodeoxygenation composite carrier is stable in deoxygenation activity and excellent in deoxygenation effect.

The present application relates to the technical field of high-temperature-resistant electronic components, and particularly relates to a high-temperature-resistant electronic component, which adopts the following technical scheme: a frame body is provided with a glue-filling sealed electromagnetic coil at the center of the frame body, and the frame body is made of high-temperature-resistant plastic material; a manufacturing process of the high-temperature-resistant electronic component comprises the following steps: S1, selecting a suitable coil body and an outer frame with a pin; S2, sealing the middle part of the coil body in the outer frame to provide mechanical support, heat dissipation and electrical connection; and S3, connecting the coil motor and the inner lead of the outer frame by using a fine metal wire (gold wire, aluminum wire or copper wire) to realize electrical conduction. The molten material in the discharge bucket can be dispersed into different cavities respectively, and the bubbles in the dispersed molten material are more easily extracted, so that the residual bubbles in the molten material are reduced.

This invention discloses a binder, its preparation method, and its application. The binder comprises the following raw materials: a compound containing soft segments, a compound containing hard segments, and a chain extender. The compound containing soft segments includes polyether polyols and polyester polyols, wherein the polyether polyols are end-capped with amino or hydroxyl groups, and the polyester polyols are end-capped with amino or hydroxyl groups. The compound containing hard segments is a diisocyanate, and the chain extender is a chain extender containing phenolic groups. This binder helps solve the interface problem of the positive electrode during battery operation and is expected to improve the cycle life and stability of the battery.

The application provides a low-resistance high-temperature-resistant conductive adhesive as well as a preparation method, a use method and a photovoltaic module thereof, and relates to the technical field of electronic packaging materials. The low-resistance high-temperature-resistant conductive adhesive comprises, calculated based on the total mass of raw materials of the low-resistance high-temperature-resistant conductive adhesive as 100%, 45-60% of silver-coated ceramic powder, 10-20% of nano silver wire, 1-2% of silicon carbide whisker, 20-30% of polyimide resin and 0.1-0.5% of antioxidant. The base material of the polyimide resin is acetylene-terminated polyimide. The antioxidant comprises BHT. The conductive adhesive provided by the application can enable the material to maintain stable conductive performance and mechanical strength after long-term high-temperature aging, and is suitable for application scenarios such as photovoltaic modules which have strict requirements on weather resistance.

This invention discloses an environmentally friendly water-based fire-fighting composite material for thermal runaway protection and its preparation method. The invention uses superabsorbent resin, epoxy resin, and a special fire-fighting liquid as main raw materials, which are mixed and then vibrated to form the composite material. The superabsorbent resin absorbs water to form a gel network, uniformly coating and fixing the special fire-fighting liquid to form a stable honeycomb composite structure. The epoxy resin provides mechanical support and a thermally conductive framework, jointly achieving integrated fire-fighting, heat dissipation, shock absorption, and thermal insulation functions. The material of this invention features flame retardancy, high-efficiency heat dissipation, shock absorption, and strong low-temperature adaptability. It can be filled between battery modules and PACK shells to quickly suppress fire and absorb impact during thermal runaway, while maintaining structural integrity and functional stability over a long period. The material preparation process is simple, environmentally friendly, and non-toxic, making it suitable for the safety protection of new energy battery systems.

The invention relates to the technical field of cable structure design, and discloses a high-temperature-resistant power cable which comprises the steps of conductor pretreatment, inner shielding layer preparation, main insulating layer construction, outer shielding layer forming, irradiation crosslinking and sheath extrusion. An interface air gap between a conductor and an insulating layer in a high-temperature environment is eliminated, the partial discharge risk caused by electric field distortion is avoided, a stable inner and outer double-layer electric field shielding mechanism is established, it is guaranteed that the cable keeps uniform electric field distribution under the wide-temperature-range working condition, and the technical defect that an electric field is unstable due to thermal expansion of a traditional cable is overcome; through the design of the main insulating layer synergistically enhanced by the functionalized ceramic microspheres and the irradiation-thermal stability synergistic crosslinking process, the high-temperature deformation resistance and molecular structure stability of the insulating material are synchronously improved, so that the cable still maintains stable dielectric properties and mechanical strength under extreme temperature conditions.

The invention discloses a La-CPAN-PEI defluorination material as well as a preparation method and application thereof, and belongs to the technical field of water treatment. The preparation method of the material comprises the following steps: performing heat treatment on polyacrylonitrile fibers in protective gas to obtain cyclized polyacrylonitrile fibers; and dispersing the cyclized polyacrylonitrile fiber, an alkali catalyst, an organic lanthanum source and polyethyleneimine in a degassed alcoholic solution, and carrying out solvothermal reaction to obtain the La-CPAN-PEI defluorination material. According to the method, the pH response characteristic of the PEI chain is utilized, the fluorine ion adsorption process is precisely regulated and controlled, and the process shows the characteristics of acid adsorption and alkali removal and dynamic balance of an intermediate pH region. The material has high adsorption capacity, excellent selectivity and simple and convenient acid-base cyclic regeneration capacity through the synergistic effect of three mechanisms of electrostatic attraction, conformation mass transfer and precipitation immobilization, and has a good application prospect in deep treatment of fluorine-containing wastewater.

This utility model relates to the field of connector technology, and more particularly to a PCB board direct-connection high-current through-wall terminal, including an insulating base, a conductive sheet, a wiring assembly, and a sealing ring. An external wiring portion protrudes from the insulating base, and an internal wiring portion is recessed on the insulating base. The internal wiring portion is smaller than the external wiring portion. A sealing ring surrounds the internal wiring portion of the insulating base, and mounting holes are provided on the outer side of the insulating base. An external partition divides the external wiring portion into several external wiring slots, and the internal wiring portion similarly has an internal partition dividing the internal wiring portion into the same number of internal wiring slots as the external wiring slots. The conductive sheet is integrally injection molded with the insulating base. One end of the conductive sheet is pre-embedded in the external wiring slot, and the other end is pre-embedded in the internal wiring slot, with the middle encased within the insulating base. Wiring assemblies are provided at both ends of the conductive sheet. This utility model provides a through-wall terminal integrating high-current transmission, multi-functional modularity, rapid installation, and high reliability.

The application provides a brexpiprazole oral film, a preparation method and application thereof. The brexpiprazole oral film comprises the following components: an active drug and a film-forming material, wherein the active drug is 7-[4-(4-benzo[B]thiophene-4-yl-1-piperazine) butoxy]-2(1H)-quinolinone as shown in formula I and / or a pharmaceutically acceptable salt thereof, the particle size D 90 ≤70 μm of the active drug; the film-forming material is one or more of hydroxypropyl methyl cellulose, polyvinyl alcohol and hydroxypropyl cellulose; and the brexpiprazole oral film does not contain dimethyl silicone oil. The brexpiprazole oral film of the application has a good dissolution rate, does not have a sand feeling after being dissolved in the oral cavity, has a uniform appearance, good flexibility, does not settle during the preparation of the film liquid, and has a uniform content.