149results about How to "Increase polarity" patented technology

The invention discloses a modification method of a PVDF (Polyvinylidene Fluoride) separation membrane, and belongs to the technical field of water treatment. The modification method provided by the invention comprises the step of impacting the PVDF separation membrane by adopting high-pressure liquid, so that high-pressure micro-droplets are in high-speed friction with the surface of the PVDF separation membrane. According to the modification method provided by the invention, the hydrophilicity, the surface potential and the dye retention rate of the PVDF separation membrane can be effectively improved.

The invention discloses a composite solid electrolyte diaphragm which comprises a bacterial cellulose membrane, fluorinated metal modified PEO electrolyte particles and functional group modified particles, and the fluorinated metal modified PEO electrolyte particles and the functional group modified particles are loaded in a three-dimensional network structure of the bacterial cellulose membrane. The functional group modified particles are functional group modified silicon dioxide particles and functional group modified LATP particles, the functional group modified silicon dioxide particles uniformly wrap the functional group modified LATP particles, and fluorinated metal of the fluorinated metal modified PEO electrolyte particles is combined with functional groups of the functional group modified particles through coordinate bonds. The invention also discloses a preparation method of the electrolyte diaphragm and a battery with the electrolyte diaphragm. The ionic conductivity of the electrolyte diaphragm is improved.

The invention discloses a halogen-free flame-retardant environment-friendly heat-resistant cable and a preparation method thereof, belongs to the technical field of cable material processing, and is used for solving the technical problem that the mechanical strength and heat resistance of a halogen-free flame-retardant environment-friendly cable in the prior art need to be further improved. The cable comprises a plurality of cable conductors, a wrapping layer and a sheath layer which are sequentially arranged from inside to outside, and the sheath layer comprises the following components in parts by weight: 70-80 parts of low-density polyethylene, 20-30 parts of modified polysiloxane, 10-16 parts of modified polyvinyl alcohol, 15-18 parts of modified kaolin, 2-3 parts of an initiator and 3-4 parts of an auxiliary additive. Low-density polyethylene is reinforced and modified through modified kaolin, modified polyvinyl alcohol and modified polysiloxane, so that not only are the mechanical strength and flame retardance of the environment-friendly heat-resistant cable effectively improved, but also the high-temperature resistance of the cable is improved, and the service life of the cable in a high-temperature environment is prolonged.

The invention discloses a windproof and breathable composite fabric and application thereof. The windproof and breathable composite fabric is used for solving the technical problem that in the prior art, the windproof and breathable performance, the wear-resistant and antistatic performance and the washing resistance of a polyester fiber fabric need to be further improved. The preparation method comprises the following steps: putting a gray fabric into a pretreatment solution for pretreatment to obtain a pretreated gray fabric, taking modified quaternary ammonium salt as a cross-linking agent, promoting cross-linking of a polyurethane prepolymer co-blocked by modified polysiloxane and polyethylene glycol, preparing epoxy group-terminated modified polyurethane, and carrying out heat treatment to obtain the pretreated gray fabric. The modified polyurethane and the tetrabutyl titanate are dispersed and mixed in the alkaline emulsion, and the prepared finishing liquid is used for padding and modifying the pretreated gray fabric, so that the windproof and moisture-permeable performance of the composite fabric is effectively improved, and the antistatic performance, wear resistance and pilling resistance of the composite fabric are also improved.

The invention discloses a base membrane for a composite current collector and a preparation method of the base membrane, and belongs to the technical field of current collectors for lithium batteries. Comprising two polymer polar material layers and a polymer reinforcing material layer located between the two polymer polar material layers. The polymer polar material layer comprises polyolefin, a polar polymer material, an amphoteric material and an antioxidant; the polymer reinforced material layer comprises polyolefin, a reinforced material and an antioxidant; the base film for the composite current collector is of a sandwich structure composed of the polymer polar material layer, the polymer reinforcing material layer and the polymer polar material layer, the performance of the edge layer and the performance of the core layer can be considered to the maximum extent, good temperature resistance, tensile strength and electrolyte resistance are achieved, the safety of a device is improved on the whole, and the service life of the device is prolonged. And the current collector development trend is met.

The present invention provides a highly elastic polyurethane-polyurea aqueous dispersion and a preparation method and application thereof, wherein the polyurethane-polyurea aqueous dispersion comprises a combination of chain extenders such as polyether polyol, polyester polyol and triazole. The soft elastic product prepared based on the polyurethane-polyurea aqueous dispersion provided by the present invention has elasticity and chemical resistance comparable to latex gloves.

The invention discloses a preparation method and application of a bifunctional acrylate monomer modified polypropylene coarsening film for an extremely cold-resistant oil-immersed capacitor, and belongs to the technical field of manufacturing of electronic and electrical insulating materials. The invention relates to application of a bifunctional acrylate monomer modified polypropylene coarsened film in an extremely cold resistant oil-immersed capacitor or a thin film capacitor. The preparation method comprises the following steps: (1) respectively adding a polypropylene coarsened film, a monomer, an interface agent, a co-monomer, an initiator and deionized water in certain parts by weight into a reactor, and heating for swelling; (2) heating the reaction system to a certain temperature, and carrying out grafting reaction; and (3) washing, extracting and drying. According to the invention, the bifunctional acrylate is used as a monomer to carry out long-chain branching modification on the polypropylene coarsened film, so that the problem of poor performance of a capacitor in an extreme environment caused by low-temperature embrittlement and high-temperature insulation deterioration of the polypropylene coarsened film is solved. The method has the advantages of good effect, environmental protection, simple process, low cost and the like.

The invention relates to the technical field of oil well paraffin removal and prevention, and discloses a paraffin removal and prevention agent for an oil well shaft and a preparation process. The paraffin remover and inhibitor for the oil well shaft comprises the following components in parts by weight: 10-25 parts of a compound surfactant, 15-30 parts of a mutual solvent, 5-10 parts of a stabilizer, 1-10 parts of a novel wax crystal improver, 0.2-0.5 part of a rapid penetrant, 0.5-1.5 parts of alkali and 25-70 parts of water, the novel wax crystal improver has a structure similar to that of paraffin, and wax crystals can be dissolved in the novel wax crystal improver, so that the wax crystals are not easy to gather and deposit on a pipe wall, and the dissolution rate of the wax crystals is further improved; sodium sulfonate in the structure has strong polarity and hydrophilicity, can adjust the crystallinity of paraffin inhibitor molecules, has a synergistic effect with asphalt, colloid and the like in crude oil, reduces the surface tension of water, has a good wetting effect, and improves the low-temperature fluidity of the crude oil.

According to the photopolymer system based on the fluorine-containing liquid crystal, the grating device and the preparation method of the grating device, the mixed liquid crystal containing the nematic liquid crystal and the fluorine-containing liquid crystal at the same time is adopted in the photopolymer system, and therefore the polarity and dielectric anisotropy of the mixed liquid crystal material are improved; the overall electro-optical performance, uniformity and stability of the photopolymer system are improved, so that a grating device prepared based on the photopolymer system has good optical characteristics of low haze while having relatively high diffraction efficiency. Specifically, fluorine-containing biphenyl liquid crystals, fluorine-containing alkyne liquid crystals and fluorine-containing difluoromethoxy liquid crystals of which the carbon atoms of flexible side chains are 2-5, and nematic liquid crystals of which the delta epsilon is not less than 10 are selected to jointly form mixed liquid crystals; and the balance and optimization between the diffraction efficiency and haze performance of the photopolymer system and the grating device prepared from the photopolymer system are realized.

The invention discloses an integrally-formed multifunctional shoe sole and a preparation method thereof, and belongs to the field of shoe products, the method comprises the following steps: carrying out primary ejection on a first insole material and a second insole material by adopting double-color ejection equipment to obtain an insole parison; in the first insole material, an ethylene-vinyl acetate copolymer, an ethylene-butyl acrylate copolymer, random polyolefin, a styrene-butadiene-styrene block copolymer and an ethylene-butyl acrylate-maleic anhydride copolymer are used as matrix resin; carrying out molding and mold pressing on the insole blank and the laminated sheet rubber, so that the insole blank is foamed and crosslinked at a high temperature, and meanwhile, the sheet rubber is vulcanized and crosslinked at the same temperature; the coated raw rubber sheet is a mixed rubber sheet mainly taking rare earth butadiene rubber, natural rubber, polyacrylate rubber and brominated butyl rubber as main bodies. According to the invention, double-color sole foaming cross-linking and raw rubber vulcanization are integrally combined and molded, the process is simplified, the cost is reduced, and the production environment is improved.

The invention relates to the technical field of drug analysis, and particularly discloses an analysis method for measuring the content of a dihydroergoline mesylate bulk drug, which comprises the following steps: step S1, adding the dihydroergoline mesylate bulk drug into anhydrous acetonitrile to obtain a stock solution to be measured, precisely measuring 1mL of the stock solution, adding a cosolvent, uniformly shaking, and fixing the volume to obtain a solution to be measured; s2, taking a dihydroergoline mesylate raw material medicine, adding the dihydroergoline mesylate raw material medicine into anhydrous acetonitrile to obtain a control stock solution, precisely measuring 1mL of the control stock solution, adding a cosolvent, uniformly shaking, and fixing the volume to obtain a control solution; s3, measuring the content of the dihydroergoline mesylate raw material medicine by using a high performance liquid chromatography; according to the present invention, the cosolvent contains the 1-butyl-3-methylimidazole tosilate, the mobile phase of the high performance liquid chromatography contains the elution reinforcing agent, and through the reasonable ratio of the components, the solubility of the dihydroergoline mesylate can be improved, and the accuracy of the high performance liquid chromatography analysis can be improved.

The invention discloses a synthesis and purification method of electronic-grade diborane, and relates to the technical field of diborane synthesis, and the synthesis and purification method has the advantages that cation 1-ethyl-3-methylimidazole in ionic liquid has a relatively large volume and a specific spatial configuration; the ionic liquid can be close to reactants sodium borohydride and hydrogen through intermolecular force, meanwhile, the anion bis (trifluoromethanesulfonyl) imide salt has high polarity and can attract reactant molecules with opposite charges, so that the ionic liquid makes full contact with the reactants, sulfolane has high dissolving capacity and can well dissolve sodium borohydride and hydrogen, and the ionic liquid can be separated from the reactants. Sodium borohydride and hydrogen are uniformly distributed in a mixed solvent, the sodium borohydride and hydrogen are efficiently reacted at proper temperature and pressure to generate high-purity diborane under the synergistic effect of the sodium borohydride and the hydrogen, sufficient contact of reactants is ensured by timely stirring in the reaction process, the reaction efficiency and the diborane yield are greatly improved, and the yield of the diborane is increased. And favorable conditions are created for subsequent preparation of electronic-grade diborane.

The invention relates to the technical field of powder coatings, in particular to high-fluidity superfine molding powder and a preparation method thereof. The high-fluidity superfine plastic powder comprises the following components in parts by weight: 40-50 parts of epoxy resin, 15-25 parts of a curing agent, 2-4 parts of a catalyst A, 3-5 parts of a plasticizer, 5-8 parts of polyacrylic acid and / or polyacrylate, 3-5 parts of a silane coupling agent, 10-20 parts of filler and 4-6 parts of other auxiliaries, the curing agent at least comprises a fluorine modified amine curing agent; and the median particle size D50 of the powder coating is 10-20 [mu] m. The powder coating adopting the epoxy resin / fluorine-modified amine curing agent system has better flowability and uniformity, charged powder particles can be guided to the surface of a workpiece under the action of an electric field to form a uniform thin coating, the powder particles are easier to carry charges with the same polarity, repulsive force among the particles is increased, and the powder coating can be applied to the surface of the workpiece. Uniform dispersion of powder particles can be kept, and the phenomenon of particle agglomeration is reduced.

The invention relates to a lithium ion battery electrolyte additive 2, 4-dicarboxamido sulfonyl cyclobutanone and a corresponding high-temperature lithium ion battery electrolyte. The electrolyte comprises the following components: lithium salt, an anhydrous organic solvent and an electrolyte additive; wherein the electrolyte additive comprises 2, 4-dicarboxamido sulfonyl cyclobutanone, and the electrolyte additive comprises 2, 4-dicarboxamide sulfonyl cyclobutanone; the use amount of the 2, 4-dicarboxamido sulfonyl cyclobutanone in the electrolyte is 0.1%-10% of the total mass of the electrolyte. The high-temperature lithium ion battery electrolyte added with 2, 4-dicarboxamidosulfonyl cyclobutanone can improve the high-temperature discharge performance, the high-temperature charge performance, the high-temperature cycle performance and the safety performance of a lithium ion battery when the lithium ion battery works at 4.2 V, does not influence the first efficiency and the rate capability, and has a relatively good application prospect in a high-temperature system.

The invention provides a PVDF-PMMA (Polyvinylidene Fluoride-Polymethyl Methacrylate)-based polymer electrolyte membrane as well as a preparation method and application thereof, and belongs to the field of lithium batteries. The invention provides a PVDF-PMMA (Polyvinylidene Fluoride-Polymethyl Methacrylate)-based polymer electrolyte membrane. The PVDF-PMMA-based polymer electrolyte membrane is prepared from the following components: PVDF, PMMA, a lithium salt, an active filler and a phosphine compound, the mass ratio of the PVDF to the lithium salt is (2-15): 1; the mass ratio of the PVDF to the PMMA is (1-10): 1; the ratio of the total mass of the PVDF and the lithium salt to the mass of the active filler is (2-30): 1; the ratio of the total mass of the PVDF and the lithium salt to the mass of the phosphine compound is (5-30): 1. The polarity of the phosphine compound is high, and the phosphine compound can promote dissociation of lithium salt, so that rapid and efficient transmission of lithium ions in the PVDF-PMMA-based polymer electrolyte membrane at room temperature is promoted, and the conductivity of the PVDF-PMMA-based polymer electrolyte membrane is further improved.

The invention discloses low-temperature high-adhesion conductive silver paste and a preparation method thereof, and the conductive silver paste comprises the following raw materials in parts by weight: 10-15 parts of modified polyurethane, 8-10 parts of methyl methacrylate, 3-5 parts of isobornyl acrylate, 1-1.5 parts of acrylonitrile, 1-1.5 parts of KH570, 0.1-0.3 part of a photoinitiator, 55-65 parts of silver powder and 10-15 parts of ethyl acetate. A polyurethane acrylate molecular side chain generated after the conductive silver paste is cured contains cyano groups, the cyano groups have high polarity, then the shrinkage performance of the molecular chain is enhanced, the distance between the silver powder is shortened, the silver powder is adsorbed, dispersion of the silver powder is facilitated, meanwhile, a stable conductive path can be formed in the silver paste through addition of the modified filler, and the conductive performance of the silver paste is improved. The mechanical property of the material after the silver paste is cured is improved, and the service life is prolonged.

The invention provides a uric acid reducing composition containing fructus gardeniae and a preparation method of the uric acid reducing composition, and belongs to the technical field of medicines. The preparation method comprises the following steps: fermenting mulberry leaves, chicory, cape jasmine and kudzu vine roots through lactobacillus rhamnosus and bifidobacterium longum, separating probiotics from fermentation liquor, adding immobilized ionic liquid into the fermentation liquor, introducing carbon dioxide for adsorption, filtering, adding solids into ethanol, heating for desorption, concentrating to obtain an extract 1, precipitating filtrate with ethanol to obtain an extract 2, and carrying out freeze-drying to obtain the folium mori-chicory-cape jasmine extract. The preparation method comprises the following steps: embedding probiotics together with sodium alginate to prepare a uric acid-reducing embedding material, and uniformly mixing the uric acid-reducing embedding material with the extract 1, vitamin C and tea polyphenol to prepare the uric acid-reducing composition containing fructus gardeniae. The prepared uric acid reducing composition containing fructus gardeniae can promote uric acid excretion, inhibit sodium urate crystallization, improve the antioxidant effect, repair intestinal barriers, relieve inflammation, inhibit xanthine oxidase (XOD) activity and expression and reduce the blood uric acid level, has a good uric acid reducing effect and has a wide application prospect.

The invention relates to water-permeable colored asphalt concrete and a preparation method thereof, and belongs to the technical field of asphalt concrete.The water-permeable colored asphalt concrete is composed of colored modified asphalt and aggregate, and the mass ratio of the colored modified asphalt to the aggregate is (1-2): 10. The colored modified asphalt is composed of road petroleum asphalt, modified calcium carbonate whiskers, modified rubber powder, a composite anti-stripping agent and an inorganic pigment. According to the permeable colored asphalt concrete prepared by the invention, the Marshall stability is 8.39 to 8.91 kN, the compressive strength is 57.9 to 64.5 MPa, the water stability RMS is 97.5 to 98.4 percent, the TSR is 95.2 to 97.0 percent, the porosity is 18.4 to 21.6 percent, and the permeability coefficient is 61 to 70 mm / s.

The invention relates to the technical field of cement grinding aids, in particular to a composite liquid cement grinding aid and a preparation method of the composite liquid cement grinding aid. Maleic anhydride, triethanolamine, acrylic acid and isopentenyl polyoxyethylene ether are used as raw materials in a macromolecular grinding aid solution; a reaction product of maleic anhydride and triethanolamine can form a compound with special functional groups, the functional groups can be effectively adsorbed on the surfaces of cement particles, friction among the particles is reduced, the grinding efficiency is improved, and the dispersity and stability of the grinding aid can be further enhanced by adding acrylic acid and isopentenyl polyoxyethylene ether, so that the grinding aid has a good application prospect. The cement particles are more easily dispersed in water, the agglomeration phenomenon is reduced, and the refining of the cement particles is facilitated; according to the invention, sodium lignin sulfonate is modified by grafting diethanolamine, and on the basis of retaining the original dispersibility of sodium lignin sulfonate, a new functional group is introduced, so that the interaction between sodium lignin sulfonate and cement particles can be enhanced, and the grinding aiding effect is further improved.

The invention relates to a uniform carbon-coated mesoporous silicon carbon negative electrode material and a preparation method and application thereof.The preparation method comprises the steps that a product obtained after pyrolysis and carbonization of a biomass carbon source is subjected to alkali activation treatment, acid pickling, drying, smashing, passivation, water washing and drying are conducted to obtain a mesoporous carbon matrix, nanometer silicon particles are deposited in pores of the mesoporous carbon matrix, and the uniform carbon-coated mesoporous silicon carbon negative electrode material is obtained. Then selecting a low-temperature carbonization material and polyethylene glycol to perform pre-carbonization and complete carbonization treatment on the mesoporous silicon carbon material to obtain a carbon coating layer, and finally obtaining the uniform carbon-coated mesoporous silicon carbon negative electrode material. When the uniform carbon-coated mesoporous silicon carbon negative electrode material is applied to a lithium battery, the mesoporous skeleton can effectively inhibit volume expansion of silicon in a battery circulation process, and the uniform carbon-coated layer can effectively reduce the risk of direct contact between the negative electrode material and an electrolyte, so that a stable SE I film is formed to reduce the occurrence of side reactions; and the first coulombic efficiency and the cycle performance of the battery are further improved.

The application discloses a modified asphalt for water-based drilling fluid and a preparation method thereof. The modified asphalt for water-based drilling fluid comprises the following raw material components: pretreated reducing slag, acid anhydride modifier, initiator, stabilizer, modifier, modification aid and performance regulator. The modifier is low-grade sulfur. The pretreated reducing slag comprises the following raw material components in weight: inferior reducing slag: 100 parts; oil sand asphalt: 20-60 parts; and pretreatment agent: 0.1-2 parts. The high-softening-point asphalt with high softening point and good hydrophilicity is obtained by modifying the difficult-to-handle inferior reducing slag and oil sand asphalt, and is suitable for being used as main material for producing asphalt water-based drilling fluid.

The invention provides a TPE blood bag membrane material and a preparation method thereof, and solves the technical problems that an existing PVC blood bag membrane material is not environmentally friendly, not resistant to radiation and sterilization, poor in air permeability and the like. The TPE blood bag membrane material is prepared from the following raw materials in percentage by mass: 20 to 50 percent of SEBS, 5 to 20 percent of plasticizer, 30 to 60 percent of POE and 5 to 20 percent of EVA, the preparation method of the TPE blood bag membrane material comprises the following steps: S1, weighing the raw material components in percentage by weight; s2, fully and uniformly mixing the raw material components weighed in the step S1 to obtain a mixture; s3, carrying out melt extrusion and granulation on the mixture weighed in the step S2 through a twin-screw extruder; the method can be widely applied to the technical fields of polymer materials and medical application.

The present invention belongs to the field of new materials, and specifically relates to a silicone-modified polyurethane compound for protecting the leading edge of a wind turbine blade and a preparation method thereof. The Si-O-Si structure in the terminal hydroxyl silicone oil prepared by the present invention firstly gives the material excellent weather resistance and low surface energy; the phenyl group of the side group can increase the polarity of the polysiloxane, thereby improving its compatibility with the polyurethane raw rubber; the vinyl group of the side group can undergo a cross-linking reaction with the polyurethane rubber in the presence of a peroxide vulcanizer, further improving the compatibility of the silicone with the polyurethane; the terminal group is a hydroxyl hydrocarbon group, which can react with isocyanate; secondly, the polar urethane bond in the prepared raw rubber can further enhance the compatibility with the polyurethane raw rubber; finally, the silicone-modified polyurethane compound obtained by blending has excellent mechanical properties, hydrophobicity and UV resistance.

The invention belongs to the technical field of metal etching, and particularly discloses a metal etching solution which comprises the following components in percentage by mass: 50-60% of phosphoric acid, 0.5-1.5% of nitric acid, 6-10% of acetic acid, 3-6% of a sulfonic acid compound, 2.5-3.6% of inorganic salt, 0.5-1.5% of an organic chelating agent, 1-3% of a nonionic surfactant, 0.1-2% of an amido carbazole compound and the balance of deionized water. The metal etching liquid provided by the invention is small in CD bias, high in etching speed and good in angle stability when being used for etching aluminum, and is free of residues and high in etching speed when being used for etching copper, and does not damage a substrate.

The invention relates to the technical field of degumming agents, in particular to a water-based neutral degumming agent and a preparation method thereof.The water-based neutral degumming agent is prepared from, by weight, 13%-17% of methyl salicylate, 27%-33% of glycol ether, 3%-7% of polyvinylpyrrolidone, 3%-5% of a softening agent, 1.1%-1.4% of a pH regulator, 1%-5% of liquid paraffin and the balance water; the device has the advantages that the OCA optical cement can be effectively removed, and the black oil is not damaged.

The invention discloses an organic-inorganic hybrid antimony-based nonlinear optical crystal material as well as a preparation method and application thereof, and belongs to the technical field of optical materials. DMSO has high polarity, high boiling point, good thermal stability and good solubility, the DMSO becomes an appropriate reaction solvent in a Sb < 3 + > system due to the characteristics, meanwhile, oxygen atoms or sulfur atoms on the DMSO have nucleophilicity, so that the DMSO has alkalinity and coordination and can form coordinate bonds with metal cations, and therefore, the DMSO can also be used as a reactant, and the Sb < 3 + > system can be used for preparing the Sb < 3 + > system. The triangular pyramid structure can enrich the structure of the Sb-based compound. According to the invention, dimethyl sulfoxide (DMSO) is taken as a solvent, and a solvent evaporation method is adopted to grow the crystal, so that the problem of hydrolysis of Sb < 3 + > is effectively avoided, the research thought and method of Sb < 3 + > are broadened, and structural distortion is increased due to introduction of DMSO, so that the optical performance of the compound is improved.

The invention discloses a preparation method and application of a cationic polyurethane / carboxyl carbon nanotube conductive composite foam, comprising the following steps: (1) preparing a cationic polyurethane; (2) mixing a cationic polyurethane and an inorganic salt by an organic solvent, drying to obtain a cationic polyurethane / inorganic salt composite elastomer, removing the inorganic salt by soaking in hot water to obtain a cationic polyurethane foam, and soaking the cationic polyurethane foam in an aqueous solution of carboxyl carbon nanotubes for a period of time, washing and drying to obtain a conductive composite foam. The cationic polyurethane of the invention comprises a hard segment structure having a cationic group and a soft segment structure with a strong polarity. By introducing a cationic group into the main chain structure of the hard segment, an electrostatic interaction is formed between the carboxyl carbon nanotubes, thereby promoting the binding ability between the nanofiller and the polyurethane foam. The porous structure of the foam improves the sensitivity of the assembled sensor within a small strain range, and is expected to be applied to the field of human motion detection.

The invention relates to an environment-friendly waterproof adhesive for furniture wood boards and a preparation method thereof, and belongs to the technical field of adhesives. The preparation method comprises the following steps: fermenting and degrading lignin, then adding a phenolic compound, stirring under an alkaline condition, finally adding formaldehyde, heating, preserving heat, and cooling to obtain the environment-friendly waterproof adhesive for the furniture wood board. White rot fungi and bacillus subtilis can effectively degrade lignin during fermentation, ether bonds in lignin are broken, steric hindrance of a molecular structure is reduced, more active sites are formed, meanwhile, phenolic compounds are added, the content of phenolic hydroxyl groups is increased, the active sites are further increased, and the content of lignin is increased. And after being combined with formaldehyde, the environment-friendly adhesive with high adhesion and good waterproofness is obtained.

The invention belongs to the technical field of secondary batteries, and particularly relates to an electrolyte, a lithium ion battery and electric equipment. The electrolyte provided by the invention comprises a pyridazine compound and difluoroethyl acetate (DFEA), the pyridazine compound accounts for A% of the total mass of the electrolyte, and A is greater than or equal to 2 and less than or equal to 70; the difluoroethyl acetate accounts for D% of the total mass of the electrolyte, and D is more than or equal to 2 and less than or equal to 30. In the electrolyte, the pyridazine compound can remarkably improve the overall conductivity of the electrolyte, reduce the resistance of ion transmission and promote efficient transmission of lithium ions in the battery; the DFEA is high in oxidation resistance due to substitution of fluorine atoms and can still keep stable under high voltage, the oxidation resistance of the electrolyte can be remarkably improved by adding the DFEA into the electrolyte, and the problem that the oxidation resistance of the electrolyte is poor due to introduction of pyridazine is solved.

The invention relates to the technical field of functional modified plastics, and provides a special self-cleaning ABS (Acrylonitrile Butadiene Styrene) composite modified material for a grater and a preparation method of the special self-cleaning ABS composite modified material. Comprising the following raw material components in parts by weight: 50-65 parts of ABS resin, 15-25 parts of glass fibers, 6-8 parts of ABS high glue powder, 5-8 parts of MBS resin, 5-6 parts of precipitated barium sulphate, 3-4 parts of polytetrafluoroethylene powder, 2-3 parts of nano SiO2, 1-2 parts of nano TiO2, 1-2 parts of nano ZnO, 0.5-1.5 parts of an auxiliary compatibilizer, 0.5-0.8 part of a glass fiber exposure prevention agent, 0.3-0.5 part of silicone master batch, 0.3-0.5 part of an antioxidant and 0-2 parts of color master batch. The nanometer material and polytetrafluoroethylene are pre-dispersed through the high rubber powder, so that efficient dispersion of the nanometer material in the ABS is realized; the self-cleaning property of the ABS composite modified material is improved by the nano material cooperating with polytetrafluoroethylene and silicone master batch; the hydrophobic and oleophobic effects are obvious.