10results about How to "The preparation process steps are simple" patented technology

The invention discloses a porous silicon-carbon negative electrode material of a lithium ion battery as well as a preparation method and application of the porous silicon-carbon negative electrode material. The preparation method comprises the following steps: firstly, activating silicon nanoparticles by using a surfactant, so that the silicon nanoparticles are positively charged, and agglomeration of the silicon nanoparticles is avoided; secondly, nano active silicon and graphite are uniformly mixed and ball-milled, so that the active silicon is anchored in a graphite layer, and the conductivity of the whole material is improved; and uniformly mixing and ball-milling the silicon / graphite composite material, asphalt and potassium chloride, and then annealing and washing to obtain the porous silicon-carbon composite material. The activated nano silicon can effectively prevent agglomeration of nano silicon particles, the porous carbon prepared by taking potassium chloride as a template agent has the characteristics of environmental protection and no pollution, the potassium chloride can be recycled, and the prepared porous silicon carbon negative electrode material can enable a lithium ion battery to have relatively high initial coulombic efficiency and excellent cycling stability.

The application discloses a workability-strength synergistically enhanced composite admixture for fly ash geopolymer and a preparation method and application thereof, and belongs to the technical field of building materials, and comprises the following raw materials in parts by weight: water reducing agent 40-60 parts, Lewis acid 15-25 parts, low-gravity mineral 5-10 parts and dispersion and enhancement agent 20-30 parts. Through scientific research and practice test, the application successfully prepares the composite admixture with workability-strength synergistically enhanced, can improve the workability of the fly ash geopolymer, and promotes the coagulation and strength development thereof. The composite admixture provided by the application has the advantages of easy-to-obtain raw materials, simple preparation process steps, easy popularization and application in a large range, low cost, wide application, good economic benefit and social benefit.

This invention belongs to the field of catalyst technology, specifically relating to a nickel-based reverse piezoelectric catalyst, its preparation method, and its application. The catalyst uses metallic nickel as both the active component and support, with an oxide loaded on the nickel surface to form the reversed host, and a composite piezoelectric material as the synergistic phase. By total mass, nickel accounts for 50%–95%, the oxide for 1%–50%, and the piezoelectric material for 0.1%–20%. This invention involves mixing and reducing a nickel precursor with an oxide, followed by the composite piezoelectric material to obtain the catalyst. The catalyst utilizes the mechanical force of ball milling and the piezoelectric effect to synergistically catalyze the hydrogenation of carbon dioxide to methane, abandoning traditional high-temperature thermocatalysis. This catalyst can achieve highly efficient carbon dioxide conversion under mild conditions, with 100% methane selectivity and significantly improved reaction efficiency, showing promising application prospects in the field of carbon dioxide resource utilization.

A total ionizing dose radiation hardening process for a silicon PNP transistor includes: selecting a silicon epitaxial wafer with a suitable doping concentration, and manufacturing a silicon-based PNP transistor through a four-time oxidation process, photolithography and impurity implantation of a base region and an emitter region, heavy metal doping, alloying, passivation, etching and other process flows. The present invention can significantly reduce the oxide-captured positive charge and interface state effects induced by ionizing radiation, can greatly enhance the total ionizing dose radiation resistance of a bipolar device, and can effectively improve the total ionizing dose radiation resistance of a silicon PNP transistor.

The utility model discloses a data line capable of preventing SR loosening. The data line comprises a wire rod and two connector modules. The connector module comprises a connector, an insulating inner mold, an SR and an insulating outer mold; the welding parts of the wire rods and the connectors are hidden in the metal shielding shells of the corresponding connectors; the insulating inner mold wraps the outer part of the tail end of the corresponding metal shielding shell, and the insulating inner mold is filled in the metal shielding shell so as to be combined and fixed between the inner surface of the metal shielding shell and the end part and the welding part of the wire rod; the tail end of the insulating inner mold is provided with a first anti-falling combination part; the SR is fixed on the first anti-falling combination part and the part, close to the first anti-falling combination part, of the wire rod through secondary injection molding and is combined and fixed with the first anti-falling combination part; the insulating outer mold is fixed outside the insulating inner mold and the SR through three-time injection molding; in this way, SR loosening is effectively prevented, material cost can be controlled easily, production and manufacturing are easy, controllability is good, and the yield of finished products is high.

This invention provides an antibacterial polyester amide, its preparation method, and its application. The invention uses caprolactone, caprolactam, and ε-polylysine as raw materials, and tetrabutyl titanate and 6-aminohexanoic acid as catalysts to prepare polyester amide under certain pressure and temperature. The obtained polyester amide has good antibacterial properties against Escherichia coli and Staphylococcus aureus. After culturing for 20 hours according to the method of GB / T31402-2015, the number of colonies can be reduced by more than 85%.

The invention discloses a light-weight dissimilar aluminum material and a preparation process thereof, and the aluminum material comprises the following elements in parts by mass in every 100 parts of alloy elements: 6.5-17.95 parts of Si; 0.5 to 1.2 parts of Fe; 0.02 to 5.0 parts of Cu; 0.01 to 0.8 part of Mn; 0.03 to 0.85 part of Mg; 0.08 to 0.1 part of Cr; 0.28 to 0.4 part of Ni; 0.05 to 2.9 parts of Zn; 0.1 to 0.2 part of Pb; 0.04 to 0.3 part of Sn; 0.01 to 0.25 part of Ti; 0.01 to 0.03 part of Sr; and the balance of Al. The machining requirements of different aluminum vehicle bodies can be met, the weight of the vehicle bodies can be greatly reduced, machining and manufacturing are convenient, the preparation process is simple in step, the machining quality of the aluminum materials can be improved, rapid cutting can be conducted according to the set size of the aluminum materials, and the preparation efficiency is greatly improved.

The invention relates to a display panel, a manufacturing method thereof and a display device. The display panel includes: a substrate; the plurality of thin film transistors are arranged on one side of the substrate, and each thin film transistor comprises a semiconductor part, a gate insulating layer, a first gate, a second gate, a source and a drain; wherein the semiconductor part and the gate insulation layer are stacked in the direction perpendicular to the plane where the substrate is located, the first gate and the second gate are spaced and arranged on the side, away from the semiconductor part, of the gate insulation layer on the same layer, and the source and the drain are electrically connected with the semiconductor part. The display panel can solve the problems of high switching voltage, low switching speed and low stability of the thin film transistor of the display panel in the prior art.

The application discloses a powder core wire for a gearbox valve body with super high strength and toughness, which comprises a powder core and a sheath. The powder core is composed of the following powders in percentage by mass: carbon powder 0.5%, manganese powder 10%-15%, chromium powder 10%-15%, nickel powder 15-20%, titanium powder 1%, silicon powder 1%, molybdenum powder 2%, copper powder 2%, CeO2 powder 1.5%-2%, and iron powder in the rest. The sheath is a low-carbon steel belt. The filling rate of the powder core wire is 20wt%-25wt%. The powder core wire is used for 3D printing to manufacture a super high strength and toughness structural member. The application also discloses a gearbox valve body with super high strength and toughness, a preparation method of the powder core wire for the gearbox valve body with super high strength and toughness, and a preparation method of the gearbox valve body with super high strength and toughness.

The invention discloses pet litter, a preparation process thereof and cat litter. The pet sand comprises bentonite, biomass carbon powder and a biodegradable binder, the biomass carbon powder is a product obtained after pyrolysis treatment of a biomass energy raw material, and the biomass energy raw material is selected from at least one of agricultural waste and forestry waste. According to the pet sand provided by the invention, the bentonite, the biomass carbon powder and the biodegradable binder are used, so that the pet sand has good water solubility while having basic properties required by the pet sand, the used pet sand can be directly poured or buried into soil, energy is not consumed in the treatment process, and the pet sand can be quickly dissolved and dispersed when meeting water; moreover, soil hardening or other adverse effects on plants cannot be caused, and recycling of the pet sand is realized. Besides, the biomass carbon powder used in the pet sand raw material provided by the embodiment of the invention is derived from a product obtained after pyrolysis treatment of agricultural wastes and / or forestry wastes, belongs to renewable resources and is environment-friendly.