34results about How to "Broaden research direction" patented technology

The invention discloses an organic cathode material for a sodium ion battery capable of being repeatedly charged and discharged, and belongs to the field of batteries. According to the organic cathode material for the sodium ion battery disclosed by the invention, an active substance of the organic cathode material is para-phthalate or a mixture of different para-phthalates; the chemical composition of the para-phthalate is C8H4O4.Rx, wherein R is Li, K, Rb, Cs, Mg, Ca, Sr, Ba, Ni, Cu, Sn, Fe, Zn, Cr, Al or Mn, and x is equal to 2/7, 1/3, 2/5, 1/2, 2/3, 1 or 2. The organic cathode material disclosed by the invention has low reaction potential, high quality specific capacity and excellent electrochemical cycle stability, and is simple in synthetic method and good in repeatability; the production cost is reduced, the requirement of sustainable development is met, and the organic cathode material has a wide application prospect in the field of sodium ion batteries.

The invention discloses an earthquake precursor analysis method based on satellite thermal infrared data and a GIS. An earthquake prediction analysis is carried out by means of thermal infrared data +GIS, so that the accuracy is improved; the data for the analysis has the large source, so that the research effect is good. Besides, the research direction of the earthquake precursor is extended; and with the GIS way, all quantitative factor that may cause any influence on the earthquake occurrence are accommodated into spatial operation, so that the restriction of analysis of the geological factors and geological formation is eliminated.

Belonging to the field of dispersants, the invention provides a method for preparation of high mud resistant polycarboxylic acid dispersant by unsaturated halogenated hydrocarbon copolymerization and grafting with a cationic side chain. The method consists of: employing an unsaturated carboxylic acid monomer, an unsaturated halogenated hydrocarbon monomer, an unsaturated cationic quaternary ammonium salt monomer, a polyethylene glycol compound and the like as the raw materials, firstly conducting main chain copolymerization, then polymerizing the cationic side chain, performing functionalization, and finally carrying out etherification grafting so as to synthesize the excellent performance high mud resistant polycarboxylic acid dispersant material with unsaturated halogenated hydrocarbon copolymerized and grafted with cationic side chain, i.e. taking unsaturated carboxylic acid and unsaturated halogenated hydrocarbon as the reactants, conducting free radical polymerization to obtain a carboxylic acid-halogenated hydrocarbon copolymer main chain, using high valence cerium salt-alcohol to initiate polymerization of an unsaturated cationic quaternary ammonium salt monomer so as to obtain a hydroxyl terminated cationic side chain, then modifying the hydroxyl terminated cationic side chain and the polyethylene glycol compound to obtain a functionalized side chain, and carrying out etherification grafting of the functionalized side chain on the carboxylic acid-halogenated hydrocarbon copolymer main chain. The method provided by the invention realizes high water reduction, slump loss resistance, high clay resistance and other multiple effects.

The invention discloses a conductive conjugated microporous polymer and a preparation method thereof, the conductive conjugated microporous polymer is composed of a conductive polymer and a conjugated microporous polymer, and the conductive polymer is distributed in nanopores of the conjugated microporous polymer. The conductive conjugated microporous polymer has adjustable conductivity and can be widely applied to the fields of electromagnetic wave absorption, microelectronics, conductive fillers, energy storage, catalysis, sensing and the like, and the preparation method is simple in process, low in cost and beneficial to large-scale preparation.

The invention discloses ipoic a lacid-modified ethyl cellulose film and a preparation method thereof. The preparation method comprises the following steps: step 1, weighing ethyl cellulose, adding theweighed ethyl cellulose into a reaction container, adding an organic solvent, carrying out heating and continuous stirring until the ethyl cellulose is completely dissolved, and performing cooling toroom temperature so as to obtain an ethyl cellulose solution; 2, weighing solid lipoic acid, adding the solid lipoic acid into another reaction container, and adding an organic solvent for dissolvingof the solid lipoic acid to obtain a lipoic acid solution; and 3, weighing a proper amount of the lipoic acid solution, the ethyl cellulose solution and a polymerization inhibitor, carrying out blending and stirring until the formed mixed solution is clear, pouring the mixed solution into a mold, and putting the mold into an oven to form a film. Compared with a pure ethyecellulose film, the filmprovided by the invention has the advantages that the mechanical properties of the film are greatly improved, and the application range of the ethyecellulose film can be widened. Besides, the film prepared by taking ethyl cellulose which is wide in source and renewable as a raw material and taking non-toxic and environment-friendly lipoic acid as a modifier has the advantages of excellent performance, water resistance, degradability and the like.

The invention discloses a PEDOT:CS water dispersion system taking cellulose sulfate as a template and a preparation method of the PEDOT:CS water dispersion system. The method comprises the following steps: adding cellulose sulfate into water to obtain a cellulose sulfate aqueous solution, and then adding a monomer EDOT to obtain a mixed solution; and adding ammonium persulfate and ferric chlorideinto the mixed solution for polymerization reaction to obtain a PEDOT:CS water dispersion system taking cellulose sulfate as a template. On one hand, the invention provides the method for preparing cellulose sulfate, and provides the new PEDOT water dispersion system by replacing PSS with cellulose sulfate as a polymerization template of PEDOT. On the other hand, the prepared PEDOT:CS aqueous dispersion has good system stability, high PEDOT content and high conductivity, and has good application prospects in the fields of electrochromism, electromagnetic shielding, supercapacitors, electrochemical sensors and the like.

The invention discloses a water-based lubricant and a preparation method thereof. The preparation method comprises the following steps: carrying out an epoxy open-loop reaction on rubber seed oil andepoxy chloropropane; carrying out a closed-loop reaction on sodium hydroxide and calcium oxide so as to obtain rubber seed oil-based epoxy; carrying out an open-loop reaction on the rubber seed oil-based epoxy with an alkylol amine compound in an inert organic solvent so as to obtain rubber seed oil-based multi-element alkylol amine; carrying out an esterification reaction on an alcohol or alcoholether with the rubber seed oil-based multi-element alkylol amine and a phosphoryl chloride compound in an inert organic solvent so as to obtain a rubber seed oil-based extreme pressure alcohol or a rubber seed oil-based extreme pressure ether; dissolving the rubber seed oil-based extreme pressure alcohol or the rubber seed oil-based extreme pressure ether into a solution, thereby obtaining a stable green environmental-friendly water-based lubricant under the coactions of hydrogen bonds. The green environmental-friendly water-based lubricant prepared by using the method disclosed by the invention has multiple effects of lubrication, environment protection and extreme pressure wearing resistance.

The invention discloses a 3D video depth image prediction mode selection method based on the viewpoint correlation. The method comprises the steps of: preliminarily judging the possibility that a current coding block selects the Skip mode by utilizing the viewpoint correlation at first; and then, for the coding block having high possibility, comparing the rate distortion RD-cost of the Skip mode with the rate distortion RD-cost of the 2N*2N Merge mode and the DIS mode, determining whether the current block selects the Skip mode or not, and ending a prediction mode selection process in advance. By means of the 3D video depth image prediction mode selection method based on the viewpoint correlation disclosed by the invention, the depth image prediction coding complexity can be reduced; the coding time required by prediction can be reduced; and furthermore, the video quality in the synthesis visual angle of the final decoding end can be ensured.

The invention relates to a light beam chaotic synchronization control method based on a self-feedback transverse coupling laser. The method comprises the steps of: injecting a laser array which carries out self-feedback through a plane mirror into a driving transverse coupling laser, and outputting an incident light beam; and injecting the incident light beam into a response transverse coupling laser, controlling an injection mode of injecting the incident light beam into the response transverse coupling laser, and obtaining an emergent light beam output from the response transverse coupling laser, so as to realize the completely chaotic synchronization of the incident light beam and the emergent light beam. By means of the method, the injection mode of injecting the incident light beam into the response transverse coupling laser is controlled, and high-quality complete chaotic synchronization control over all laser elements can be achieved for the driving transverse coupling laser under different self-feedback conditions.

The invention discloses a CNT:SNC:PEDOT ternary water-based conductive ink and a preparation method thereof. The method comprises the following steps: adding carbon nanotubes into a sulfated nanocellulose aqueous dispersion, and conducting uniform dispersing to obtain a CNT:SNC dispersion; adding an EDOT monomer into the CNT:SNC dispersion, and conducting uniform stirring to obtain a mixed liquid;and adding ammonium persulfate and ferric chloride into the mixed solution, and carrying out polymerization reaction in an inert atmosphere to obtain the CNT:SNC:PEDOT ternary water-based conductiveink. The CNT:SNC:PEDOT ternary conductive ink has the advantages of being water-based, environment-friendly, good in stability, good in adhesive force, free of heating curing, high in universality andthe like. Meanwhile, due to the advantages of stable dispersion, high conductivity, excellent printing adaptability, excellent coating mechanical stability and the like, the conductive ink provided by the invention is expected to be applied to printing of various flexible electronic devices.

The invention relates to a medium and low temperature curing bio-based epoxy asphalt composite material and application thereof. The material is composed of a component A and a component B. The component A comprises the following components by mass: 15-40 parts of bisphenol A epoxy resin, 9.8-25 parts of modified epoxy resin, 4.5-10 parts of an epoxy diluent, 0.1-1 part of a curing accelerator, and 40-50 parts of petroleum asphalt. And the component B is a curing agent. The mass part ratio of the component A to the component B is 100: (50-70). The epoxy asphalt composite material prepared by the invention has the advantages of high strength, high toughness, medium and low temperature curing, strong compatibility, low energy consumption, low pollution, low cost, environmental protection and the like, and can be widely applied to road pavement of pavements and bridge floors.

The invention discloses a bio-based primary amine cationic surfactant and a preparation method thereof, and belongs to the technical field of surfactant science and application. The synthesis of the surfactant comprises the following steps that oleic acid and methyl alcohol are used as raw materials for sequentially carrying out esterification, reduction and substitution, so that oleyl alcohol issybthesized; substitution is carried out on the oleyl alcohol and 3-hydroxybenzaldehyde, and substitution, reduction, acidification reaction are carried out, so that the final bio-based primary aminecationic surfactant is obtained. The bio-based primary amine cationic surfactant has wide raw material sources, is biologically renewable, is green and environmentally friendly, and has high biodegradability, the types of biological-based surfactants with renewable resources as raw materials are enriched, and the bio-based primary amine cationic surfactant can be widely applied to research of a surfactant self-organizing system.

The invention discloses a cultivation device for researching the growth state of a wheat root system. The cultivation device comprises a culture box, a box cover is clamped on the culture box, two partition plates are arranged in the culture box, the culture box is sequentially divided into a water base cavity, a soil base cavity and a non-base cavity from left to right by the two partition plates, a plurality of planting holes are formed in the box cover, and the plurality of planting holes respectively correspond to the the water base cavity, the soil base cavity and the non-base cavity in position. The device has the advantages that three groups of contrast studies can be performed on wheat respectively, growth conditions of the wheat root system in different environments can be known more clearly, three groups of contrast study objects are in the same device, unified management is facilitated, and the sizes of growth spaces of the contrast study objects can be adjusted according to needs, so that the growth conditions of plants in different spaces can be researched, the research direction of the device is further improved, the coverage of obtained data is wider, and the accuracy is higher.