11results about How to "Reduce migration speed" patented technology

The invention provides an asymmetric modified silicon dioxide particle doped sulfonated polyether ether ketone membrane and a preparation method and application thereof, the preparation method comprises the following steps: (1) under a heating condition, mixing surface hydroxylated silicon dioxide particles and paraffin, adding a first solvent, stirring, and cooling to obtain paraffin emulsion droplets; (2) mixing the paraffin emulsion droplets obtained in the step (1) with a sulfydryl-containing silane coupling agent, and reacting to obtain a mixture; and mixing the mixture with a hydrogen peroxide solution, and carrying out oxidation reaction to obtain the asymmetrically modified silicon dioxide particles, and (3) mixing the asymmetrically modified silicon dioxide particles and sulfonated polyetheretherketone, and drying to obtain the asymmetrically modified silicon dioxide particle doped sulfonated polyetheretherketone membrane. The asymmetric modified silicon dioxide particle doped sulfonated polyether ether ketone membrane provided by the invention is low in swelling property, relatively high in proton conductivity and relatively good in ion selectivity, and the performance of a flow battery can be improved when the membrane is used for the flow battery.

The invention relates to the technical field of photoelectricity, and discloses a light-emitting diode epitaxial wafer and a preparation method thereof, and an LED chip, the light-emitting diode epitaxial wafer comprises a substrate, and the substrate is sequentially provided with a buffer layer, a non-doped GaN layer, an N-type GaN layer, a combination layer and a P-type GaN layer; the combined layer comprises an electron consumption layer and a wave band layer which are stacked in sequence, the electron consumption layer comprises Mg-doped AlGaN layers and BN layers which are stacked alternately, the wave band layer comprises a medium wave layer, a short wave layer and a long wave layer which are stacked in sequence, the medium wave layer comprises Ga plane polarization GaN quantum barrier layers and first InGaN quantum well layers which are stacked alternately, and the first InGaN quantum well layers are stacked alternately. The short-wave layer comprises N-plane polarized GaN quantum barrier layers and second InGaN quantum well layers which are alternately stacked, and the long-wave layer comprises Ga-plane polarized AlGaN quantum barrier layers and third InGaN quantum well layers which are alternately stacked. The light-emitting diode epitaxial wafer provided by the invention can reduce electron overflow and weaken QCSE in the multi-quantum well layer.

The invention provides a preparation method of slow-release sludge-based nutrient soil, which comprises the following steps: mixing first biochar, a compound microbial agent and a first adhesive according to a set proportion, and carrying out first-stage granulation to form first-stage slow-release nutrient soil particles; mixing dewatered sludge and a slow-release material according to a set proportion, and mixing the mixture with the first-stage slow-release nutrient soil particles for second-stage granulation to form second-stage slow-release nutrient soil particles; mixing second biological carbon and a second adhesive according to a set proportion, and mixing with the second-stage slow-release nutrient soil particles for third-stage granulation to form third-stage slow-release nutrient soil particles; according to the preparation method, the slow-release sludge-based nutrient soil prepared by adopting multi-stage granulation can slowly release organic matters, nutritional nutrients and salt, meanwhile, the mobility of toxic and harmful substances in the dewatered sludge can be reduced, the pollution risk to soil and water is reduced, the utilization rate of the nutrients of the dewatered sludge is increased, and the nutrient utilization rate of the dewatered sludge is increased. And the risk of dewatered sludge to the environment is reduced.

The invention discloses a lithium ion battery non-combustible electrolyte and a preparation method and application thereof, and relates to the technical field of electrolyte preparation. The electrolyte comprises an organic solvent, a lithium salt, fluorophosphate and a film-forming additive, wherein the film-forming additive is aluminum isopropoxide. The preparation method disclosed by the invention is simple, mild in condition, low in cost and suitable for large-scale industrial production, not only meets the requirements of the existing market on non-combustible and high-safety performance of the electrolyte, but also has relatively wide application and production prospects. The problem that an existing electrolyte is poor in safety performance is solved.

The invention discloses a preparation method of an aluminum electrolytic capacitor, and relates to the technical field of capacitors. The method at least comprises the following steps: winding an anode foil, double-layer electrolytic paper and a cathode foil into a core package; carrying out impregnation treatment on the core package; and drying the impregnated core package and putting the core package into a shell to form the aluminum electrolytic capacitor. Wherein the double-layer electrolytic paper comprises a microporous layer and a base material layer, the microporous layer is arranged close to the anode foil, conductive graphite is adsorbed on the microporous layer, the raw material of the microporous layer is bamboo pulp fiber, and the raw material of the base material layer is bamboo pulp fiber and wood pulp fiber. The electrolytic paper of the aluminum electrolytic capacitor prepared by the invention comprises the microporous layer and the base material layer, and the conductive graphite is attached to the microporous layer, so that the high-voltage alternating current impact resistance and the cycle performance of the aluminum electrolytic capacitor are effectively improved.

The invention provides a preparation method of a GeSe OTS gate tube material introduced with As and Si elements. The amorphous state model of the GeSe OTS gate tube in which As and Si elements are introduced is constructed, the amorphous degree and state density of the material model in which the As and Si elements are introduced are compared, and it is clarified that the amorphous degree of the AsGeSeSi material is larger and the ground state resistance is larger. And then, according to the bonding characteristic, it is clarified that the structure of the GeSe OTS gate tube material after the As and Si elements are selectively introduced is more stable, and guiding significance is provided for optimizing the performance of an OTS threshold device.

The invention discloses an antibacterial and mildew-proof sanitary container bag and a preparation process thereof, and relates to the technical field of container bags, the antibacterial and mildew-proof sanitary container bag comprises a plastic woven cloth layer, a bonding layer and a base layer from outside to inside in sequence; the base layer is composed of a base material and antibacterial and mildew-proof resin particles, and the base material is composed of a bottom layer, a middle layer and a surface layer in sequence; the antibacterial mildew-proof resin particles are positioned on the bottom layer and the middle layer or the middle layer and the surface layer of the base layer; the addition amount of the antibacterial and mildew-proof resin particles in the base layer accounts for 3.0-5.0% of the total addition amount of the base layer in percentage by weight; the water absorption layer is introduced into the antibacterial mildew-proof resin particles, the release speed of silver ions is effectively controlled through the slow release effect of the water absorption silica gel, too fast loss of the silver ions is avoided, slow release of the silver ions is achieved, and therefore the antibacterial time of the container bag is prolonged.

The invention is suitable for the field of battery cell manufacturing, and provides a battery cell formation method, a battery cell, electronic equipment and a computer program product.The method comprises the steps that at a first set temperature, a first set current is adopted to charge a liquid-injected battery cell till the charging voltage reaches a first cut-off voltage; the first set temperature is less than or equal to a preset temperature, and the first set current is less than or equal to a preset current; completely discharging the liquid-injected battery cell of which the charging voltage reaches the first cut-off voltage; and returning to execute the step of charging the liquid-injected battery cell by adopting the first set current at the first set temperature until the charging voltage reaches the first cut-off voltage, and when the charging times reach the preset charging times, obtaining a target battery cell of which the SEI film compactness meets the requirement. According to the scheme, the SEI film compactness of the battery cell can be improved, and the cycle performance of the battery cell is improved.

The invention belongs to the technical field of medical fertilizers, and particularly relates to a special medical fertilizer granule for soil-borne diseases and a preparation method of the special medical fertilizer granule. The granule is composed of a pesticide sterilization effective component, a zinc-based slow-release material mixed carrier, a fertilizer effective component and the like, wherein the zinc-based slow-release material mixed carrier is a compound of at least one of polysaccharides such as chitosan, carboxymethyl chitosan and pectin, a chelate of calcium chloride and a zinc-based slow-release material metal organic framework-zeolite imidazate framework ZIF-8. The pesticide-fertilizer granule has the advantages that the zinc-based slow-release material metal organic framework ZIF-8 is used as a main slow-release carrier, the lasting period of pesticide and fertilizer effective components is prolonged, the prevention and treatment effect on soil-borne diseases is enhanced, the preparation method is simple, disease prevention and treatment and topdressing are synchronously performed during application, and the pesticide and fertilizer application strength and frequency of farmers are reduced.

The invention discloses a method for delaying aging of triticale steamed buns and a compound modifier, and belongs to the technical field of food processing. The compound modifier is prepared from the following components in percentage by mass: 40 to 60 percent of sodium alginate, 20 to 30 percent of cyclodextrin, 10 to 15 percent of monoglyceride and 10 to 15 percent of guar gum. The invention also relates to triticale steamed buns containing the compound modifier. The triticale steamed buns are prepared by adding the compound emulsifier into raw materials of the triticale steamed buns. The compound modifier is simple and convenient to use, and can effectively delay the aging phenomenon of the triticale steamed buns, increase elasticity, improve the structure and texture of the triticale steamed buns, improve sensory acceptability and prolong the shelf life of the triticale steamed buns. The method is suitable for solving the aging problem of the triticale steamed buns in food processing, and efficient production of triticale products and flour products is promoted.

The application relates to the technical field of cable materials, in particular to an insulating cable material and a preparation method thereof. A large number of'sea-island' interface structures exist in a PP / SEBS blended material body, and charges generated by electrode injection and polarization are prone to accumulating at the'sea-island' interface, so that space charge accumulation is caused, and the voltage breakdown field strength of the material is reduced. Based on the above problems, the application provides an insulating cable material, wherein long-carbon-chain modified graphene is added in the material system; the long carbon chain makes the nano-graphene sheet layer structure not prone to agglomeration; the long carbon chain can also act as a 'bridge' to accelerate the migration speed of carriers in SEBS in all directions, so that the difference between the number of carriers reaching and leaving the'sea-island' interface in the polarization process of the PP / SEBS blended material is reduced, and the space charge accumulation phenomenon at the interface is effectively improved.