129results about How to "Good modification effect" patented technology

The invention discloses a stable curing material of high-expansibility heavy metal polluted clay and a preparation method of the stable curing material, belongs to the technical field of engineering materials and environmental engineering, and is used for solving the technical problems that in the prior art, all curing components in the stable curing material are poor in binding property and poor in adsorbability to polluted heavy metal elements. The preparation method comprises the following steps: synthesizing an intermediate A from composite carbide slag pellets, a modified adhesive, an alkaline excitation material, dead burned magnesium oxide, metakaolin, polyvinyl alcohol, chlorocyclopropane and methyltrimethoxysilane, reacting allyl bromide with methyl trichlorosilane to obtain allyl chlorosilane, reacting the intermediate A with allyl chlorosilane to obtain the modified calcium carbide slag pellets. The modified adhesive with high viscosity and strong adsorbability is obtained, the fly ash, the modifier and the carbide slag are mixed, and high-strength and high-stability composite carbide slag pellets are obtained through spheroidizing treatment and high-temperature calcination, so that the prepared stable curing material has the advantages of being excellent in adsorption curing performance and good in overall stability.

The invention discloses auxiliary alloy nano powder, modified magnetic powder, a sintered neodymium-iron-boron magnet and a preparation method. According to the preparation method of the auxiliary alloy nanopowder for modifying the magnetic powder, the chemical component of the auxiliary alloy nanopowder is Re100-m-n (Cu, X) mQn, Re is a light rare earth element, X is selected from at least one of Al, Ga, Co, Mg, Sn, Te and Sb, and Q is selected from at least one of Ti, Zr, Hf, V, Nb, Ta, W and Mo; m and n are atomic numbers respectively, m is greater than or equal to 24 and less than or equal to 72.4, n is greater than or equal to 12.5 and less than or equal to 76, and 100-m-n is greater than or equal to 0; the auxiliary alloy nano powder does not contain Fe and B; the preparation method comprises the following steps: (1) providing an auxiliary alloy sheet; and (2) mixing the auxiliary alloy sheet, a modified substance and an organic solvent, and carrying out primary crushing and fine crushing to obtain the auxiliary alloy nano powder. The coercive force and the squareness of the sintered neodymium-iron-boron magnet can be improved, and the absolute value of the residual magnetism temperature coefficient and the absolute value of the coercive force temperature coefficient of the sintered neodymium-iron-boron magnet are reduced.

The invention belongs to the technical field of resin modification research, and particularly relates to a preparation method of toughened bismaleimide resin. The preparation method comprises the following steps: pre-polymerizing a diamine toughening agent and bismaleimide resin to form a prepolymer A, blending the bismaleimide resin by virtue of the prepolymer A and diallyl bisphenol a with different contents, and curing the blended resin by adopting a specific process after blending, so as to obtain the toughened bismaleimide resin cured product. The toughened bismaleimide resin cured product prepared by the invention has excellent toughness and heat resistance.

The invention belongs to the field of drug-loaded nanoparticles, and provides a targeted drug-loaded nanoparticle with multiple responsiveness and a preparation method thereof. The targeted drug-loaded nano-particle with multiple responsiveness is prepared from poly (N-isopropylacrylamide-co-acrylic acid-co-N-acryloyloxy succinimide) nanogel with temperature and pH response characteristics, an anti-tumor drug and a folic acid layer capable of specifically targeting a folic acid receptor of a tumor cell, wherein the temperature and pH response characteristics are realized by the poly (N-isopropylacrylamide-co-acrylic acid-co-N-acryloyloxy succinimide) nanogel; the anti-tumor drug is loaded in the polymer network structure of the nanogel to form drug-loaded nanoparticles, the folic acid layer is composed of aminated folic acid molecules, the folic acid layer coats the drug-loaded nanoparticles, and amino groups of the aminated folic acid molecules are grafted on the surfaces of the drug-loaded nanoparticles. According to the invention, the preparation method of the existing chemotherapy nano-drug carrier can be simplified, the controllability of the preparation process is improved, the biocompatibility of the existing chemotherapy nano-drug carrier is improved, and the targeting property of the existing chemotherapy nano-drug carrier is enhanced.

The invention belongs to the technical field of fabric coatings, and particularly relates to a self-cleaning sensing type composite coating for fabric and a preparation method of the self-cleaning sensing type composite coating. The self-cleaning sensing type composite coating comprises a polypyrrole coating, a ferroferric oxide coating and a hydrophobic polyurea modified coating. The self-cleaning sensing type composite coating has good self-cleaning performance, sensing performance, wave absorbing performance and hydrophobic performance.

The invention belongs to the technical field of coating preparation, and discloses a nanoparticle modified heavy anti-corrosion material as well as a preparation method and application thereof. The nano-particle modified heavy anti-corrosion material comprises the following components in percentage by weight: 60-80% of a component A, 10-25% of a component B and 10-30% of a first solvent, wherein the total percentage is 100%; the component A comprises the following components in percentage by weight: 45%-60% of a resin solution, 0.5%-5% of graphene oxide, 8%-20% of polyaniline nanofibers, 0.5%-5% of carbon nanotubes, 0.6%-40% of a filler, 0.3%-3% of an additive and 8%-12% of a cosolvent, and the total percentage is 100%; the component B comprises the following components in percentage by weight: 40-60% of polyamide and 40-60% of a second solvent, wherein the total percentage is 100%. The nano-particle modified heavy anti-corrosion material prepared by the invention has excellent salt mist resistance, acid resistance, alkali resistance, good adhesive force and impact resistance.

The invention relates to the technical field of high polymer materials, in particular to a medical foaming silica gel material and a preparation method thereof. The material is prepared from, by weight, 15-25 parts of medium phenyl silicone rubber, 5-10 parts of high phenyl silicone rubber, 6-15 parts of modified nano-silver, 15-35 parts of reinforcing filler, 5-10 parts of vulcanizing agent, 15-35 parts of foaming agent, 1-5 parts of platinum catalyst and 1-10 parts of urea. The medical foamed silica gel material prepared by the invention is a medical polymer material which is light, soft and good in compatibility with human bodies. A mixture composed of siloxane-based rubber, a reinforcing filler, a foaming aid and a platinum catalyst is vulcanized to form the porous foam elastomer. The material has the characteristics of high air permeability, excellent antibacterial property, high tensile strength and the like, so that the material has excellent performance in various medical applications.

The invention provides a preparation method for efficiently synthesizing hectorite, aiming at the defects that the existing hectorite synthesis technology is high in cost, complex in condition, time-consuming, energy-consuming and the like, process improvement is carried out, and the method comprises the following core steps: adding a magnesium carbonate and magnesium oxide mixed magnesium source, a specific silicon source and a single lithium source into deionized water at room temperature, and carrying out high-speed shearing to obtain uniform slurry; then adjusting the pH value by adopting sulfuric acid, hydrochloric acid, sodium carbonate or introducing a plurality of regulators such as carbon dioxide, and shearing; and performing high-temperature crystallization in a closed container, and sequentially performing filter pressing, washing, drying, grinding and sieving to obtain a finished product. According to the preparation method for efficiently synthesizing hectorite provided by the invention, various cheap raw materials are selected to replace high-purity chemicals, multi-link optimization is realized, the cost is reduced, the efficiency is increased, time is shortened, energy is saved, and the product is excellent in quality, high in purity, few in impurities, excellent in microstructure, dispersed, transparent, high in rheological property and huge in application potential in the fields of cosmetics, well drilling, coatings and the like; the method has breakthrough significance and wide prospects in industrial production and product application.

The invention relates to the technical field of bamboo-based full-biodegradable mulching films, in particular to a bamboo-based full-biodegradable mulching film preparation method which comprises preparation of bamboo-based full-biodegradable master batches and preparation of a bamboo-based full-biodegradable mulching film. The preparation method of the bamboo-based full-biodegradable master batch comprises the following steps: 1, drying bamboo product wastes at 60-80 DEG C for 6-8 hours, removing residual moisture, and crushing in a crushing device for 1-3 hours until the particle size is 500-1500 meshes for later use; 2, soaking PBAT particles in water, putting the PBAT particles into a drying oven, adjusting the temperature to 60-95 DEG C for 8-72 hours, taking out the particles, drying the particles at 60 DEG C for 12 hours to obtain high-melt-index PBAT particles with the melt index of 30-150 g / 10 min, and uniformly mixing KH570 and ethanol according to the ratio of 1: (1-10) for later use; the bamboo product waste is collected, crushed and modified again and added into the degradable mulching film, so that waste resources can be recycled, the performance of the degradable mulching film is improved, the cost is reduced, and the purpose of replacing plastic with bamboo is achieved.

The invention belongs to the technical field of high polymer materials, and particularly relates to weather-resistant high-toughness PP (polypropylene) plastic as well as a preparation method and application thereof. The preparation method comprises the following steps: adding SBS resin into an organic solvent, heating, stirring and dissolving, then adding hydrogen-containing silicone oil and a hydrosilylation catalyst, heating, stirring and reacting, and drying and granulating after the reaction is completed to obtain the organic silicon modified SBS thermoplastic elastomer toughening agent. Uniformly mixing the obtained organic silicon modified SBS thermoplastic elastomer toughening agent with PP granules and reinforcing filler, and extruding and granulating to obtain reinforced PP master batch; uniformly mixing the obtained reinforced PP master batch and PP granules again, extruding into a mold, and cooling and molding, so as to obtain the weather-resistant high-toughness PP plastic. The PP plastic is subjected to blending modification by adopting the organic silicon modified SBS thermoplastic elastomer toughening agent, so that the toughness and weather resistance of the PP plastic can be remarkably improved. The method can be used for preparing low-temperature-resistant environment-friendly pipelines and floor products.

The invention provides composite modified asphalt and a preparation method thereof, and belongs to the technical field of high polymer materials, the composite modified asphalt contains SBS modified asphalt, modified tire rubber powder, epoxy asphalt, SBR, a high-modulus anti-rut agent, an asphalt warm mixing agent, maleic resin, rubber softening oil, ethylhexyl stearate, isopropyl stearate and the like; aH-110 asphalt, AH-90 asphalt and AH-70 asphalt are modified through an SBS modifier, and calcium stearate, isopropyl stearate, an asphalt warm mixing agent and the like are added; the modified tire rubber powder is obtained by adopting waste tire rubber powder as a raw material and carrying out surface composite coating modification on basalt fiber, silica fume and AH-130 asphalt powder. The composite modified asphalt prepared by melting and blending the components has good high-temperature stability, low-temperature crack resistance, fatigue resistance and water damage resistance, and can better adapt to the use environment of the viaduct.

The invention discloses a preparation method and application of a biomimetic mineralized hydrogel coating with high adhesiveness, and relates to the technical field of bone implant surface modification. The method comprises the following steps: immersing a bone implant subjected to surface pretreatment into a polyvinyl alcohol solution, then carrying out single freezing and thawing cycle, and then carrying out annealing treatment, alternately soaking the annealed bone implant in a calcium-containing solution and a phosphorus-containing solution, and carrying out surface mineralization treatment; then, inducing a product subjected to surface mineralization treatment to obtain hydroxyapatite; the biomimetic mineralized hydrogel coating with strong adhesiveness is obtained on the surface of the bone implant. According to the method, the surface of the bone implant is coated with the strong-adhesion hydrogel coating by adopting a dip-coating method, and the thickness and the surface flatness of the coating can be controlled by adjusting the dip-coating frequency.

The invention discloses a preparation method of a composite filler with heat conduction and hydrophobic effects. Wherein the raw materials required for preparation comprise hexagonal boron nitride powder, hexadecyl trimethyl ammonium bromide, tetraethoxysilane, a silane coupling agent, ammonia water, hydroxyl-terminated polysiloxane, a catalyst and a solvent; during preparation, boron nitride powder is fully dispersed in an ethanol solvent through ultrasonic dispersion, then tetraethoxysilane and a silane coupling agent are added, after ammonia water is added, mesoporous silica grows on the surface of the boron nitride powder in situ through a sol-gel reaction in an alkaline environment, the obtained powder is filtered and dried, and the mesoporous silica / boron nitride composite material is obtained. The preparation method comprises the following steps: preparing mesoporous silica, dispersing the mesoporous silica in a hydroxyl-terminated polysiloxane solution, adsorbing and connecting hydroxyl-terminated polysiloxane to the surface of the mesoporous silica by using an organic tin compound as a catalyst, filtering, washing and drying the modified powder to obtain the composite functional filler with heat-conducting and hydrophobic effects, and adding the composite functional filler into resin to be dispersed so as to be applied to the field of coating protection.

The invention relates to the technical field of road asphalt modification, in particular to an asphalt modifier containing polyethylene and an asphalt mixture prepared from the asphalt modifier. The asphalt modifier containing polyethylene comprises the following components in parts by weight: 8-15 parts of matrix asphalt, 30-50 parts of coal liquefied asphalt, 30-50 parts of pretreated rubber powder, 1-4 parts of a solubilizer, 1-4 parts of a plasticizer and 2-4 parts of waste polyethylene plastic. The asphalt modifier containing polyethylene also comprises a component A: 0.3-3.0 parts by weight of modified basalt fiber. The asphalt modifier containing polyethylene is prepared through a mixing technology, compared with a traditional modifier, basic raw materials of the asphalt modifier are completely derived from solid waste resources, resource utilization of waste is achieved, and the preparation process is simplified.

The invention discloses a flame-retardant antibacterial Lyocell fiber material as well as a preparation method and application thereof, and belongs to the technical field of cellulose fiber material preparation. Comprising the following steps: (1) adding a chitosan solution into a flame retardant solution or dispersion liquid to prepare a microcapsule blending type flame retardant; (2) adding the microcapsule blended flame retardant and a cross-linking agent into a cellulose spinning solution to obtain a flame-retardant cellulose spinning solution; and (3) spinning the flame-retardant cellulose spinning solution by adopting a wet spinning process to obtain the flame-retardant antibacterial Lyocell fiber material. Chitosan is used for coating a phosphorus-containing flame retardant to construct a microcapsule blended flame retardant, the microcapsule blended flame retardant has good compatibility with cellulose, and the defects that a traditional blended cellulose spinning solution is prone to layering and uneven in dispersion are overcome.

The invention discloses high-strength heat-resistant green concrete and a preparation method thereof, and the high-strength heat-resistant green concrete comprises the following raw materials by weight: 600-750 parts of cement; 1000 to 1250 parts of sand; 1300 to 1450 parts of broken stone; 130 to 150 parts of fly ash; 65 to 85 parts of silica fume; 180 to 200 parts of water; 27-35 parts of a water reducing agent; 26 to 33 parts of an exciting agent; 6-10 parts of a defoaming agent; 21-29 parts of a shrinkage reducing agent; 20 to 28 parts of steel fiber; 30 to 50 parts of titanate coupling agent modified glass beads; and 45-75 parts of graphene modified potassium titanate whiskers. The high-strength heat-resistant green concrete provided by the invention has the advantages of high compressive strength, good heat resistance and better anti-cracking effect.

The invention relates to the technical field of coatings, and discloses a preparation method of an environment-friendly wear-resistant water-based coating, which comprises the following steps: adding water-based epoxy resin, modified polyester fiber, a defoaming agent, a thickening agent, a pigment filler and a dispersing agent into water, and shearing and dispersing through a high-speed dispersion machine to obtain the environment-friendly wear-resistant water-based coating. According to the preparation method, the polyester fiber is subjected to ultraviolet radiation grafting modification by using the styryl sulfoacid imine monomer, and a large number of hydrophilic sulfonate groups and active imino groups are introduced to the surface of the fiber, so that the dispersity of the polyester fiber in a water-borne epoxy resin coating is improved, and the wear resistance and the hardness are improved. Active imino groups on the surface of the modified polyester fiber can be subjected to a curing reaction with epoxy resin, so that the interface bonding force between the polyester fiber and the epoxy resin is enhanced, a very good toughening effect is achieved, and the tensile strength, the elongation at break and the impact strength of the epoxy resin are improved.

The invention belongs to the field of petrochemical engineering, and particularly relates to high-stability rubber composite modified asphalt and a preparation method thereof. The rubber composite modified asphalt provided by the invention comprises the following components in parts by mass: 100 parts of petroleum asphalt, 2-3 parts of an SBS modifier and 20-30 parts of a rubber modifier. 0.1-0.3 part of a stabilizer and 2-3 parts of a cosolvent; the petroleum asphalt is 70 # road petroleum asphalt, and the needle penetration is 60-801 / 10mm; the SBS modifier is a styrene-butadiene-styrene block copolymer, the mass ratio of a styrene chain segment to a butadiene chain segment in the block copolymer is 30: 70, and the weight-average molecular weight of the block copolymer is 150000-250000; the rubber modifier is desulfurized rubber particles, and the particle size is 30-60 meshes. The rubber composite modified asphalt provided by the invention has excellent storage stability on the basis of meeting basic index requirements of asphalt products.

The invention discloses a nano-cellulose modified thermoplastic material composite 3D printing consumable and a preparation method, and relates to the technical field of 3D printing consumables, the nano-cellulose modified thermoplastic material composite 3D printing consumable is formed by mixing nano-cellulose modified pecan shell micro powder and a thermoplastic material according to the mass ratio of 1: (4-5); the nano-cellulose modified hickory nut shell micro-powder is prepared from hickory nut shells, talcum powder, nano-cellulose, cationic starch, alkyl ketene dimer, a coupling agent and a lubricating agent. The thermoplastic material is composed of polylactic acid, poly (adipic acid) / butylene terephthalate, a cellulose biological composite material, a flexibilizer and an antioxidant, and the problems that talcum powder and hickory nut powder are not tightly combined and are prone to falling off and components are unstable are effectively solved by adopting the novel separation device; the tight combination and uniform distribution of the talcum powder and the pecan shell micro powder are ensured, so that the compatibility of the talcum powder and the pecan shell micro powder with a thermoplastic material and the overall performance of the composite material are improved.

The invention relates to the technical field of quartz powder preparation, in particular to a preparation method of modified quartz powder. The preparation method of the modified quartz powder provided by the invention comprises the following steps: S1, adding a modifier and water into a quartz sand raw material by adopting a first pumping device and a second pumping device respectively to obtain a first mixture; s2, performing premixing treatment on the first mixture to obtain a second mixture; and S3, grinding the second mixture to obtain the modified quartz powder. The preparation method of the modified quartz powder has the advantages of good modification effect, high production efficiency, low energy consumption, good stability of the modification process, safety and no risk, and avoids the reduction and failure of the modification effect caused by long-time mixing of the modifier and water.

The application discloses a PE material modification equipment and modification process, and relates to the technical field of PE material modification. The PE material modification equipment comprises a machine body, a supporting base is welded at the bottom of the machine body, a driving motor is fixed on the side wall of the machine body, an upper cover is detachably installed at the top of the machine body, a driving modification mechanism is arranged in the machine body, the driving motor performs power output on the driving modification mechanism, the driving modification mechanism comprises a driving shaft, and the end of the driving shaft is fixed with the output end of the driving motor. In the process that the transmission auger is used for stirring and conveying modification of PE materials, the PE materials are subjected to secondary crushing and modification treatment through three groups of movable stirring blades and fixed stirring blades. In the process that the outer ring rotates, the movable stirring blades move relative to the fixed stirring blades through the contact and extrusion of the stand and the triangular block, so that the stirring and grinding effect is achieved, and the modification effect on the PE materials is improved.

The utility model provides a modification device which comprises a modification tank and a tool, and the tool is used for installing coiled materials and arranged in the modification tank. The tool comprises a mounting shaft, a cavity is formed in the mounting shaft, a first through hole communicated with the cavity is formed in the circumferential surface of the mounting shaft, an opening is formed in one end of the mounting shaft, and the opening is communicated with the cavity. According to the device for modifying the non-woven fabric applied to the filter element, the non-woven fabric coiled material is fixed on the tool in the modification tank for modification, so that the modified non-woven fabric capable of adsorbing heavy metals can be prepared. The modification liquid in the modification tank can enter the coiled material from the inner cavity of the mounting shaft, so that the modification liquid flows out from the interior of the coiled material to the exterior of the coiled material, the modification degree of the middle part and the modification degree of the external part of the non-woven fabric are kept consistent, uniform and stable modification of the non-woven fabric coiled material is realized, and the quality of the modified non-woven fabric is improved.

The invention discloses a method for directional regulation of starch-based edible film performance, and belongs to the technical field of food packaging. The invention prepares edible film by enzymatically modifying starch, and uses starch branching enzyme to hydrolyze starch and transglycosylate, and regulates α, 1-4 and α, 1-6 glycosidic bonds in the starch molecular structure, thereby realizing the preparation of highly branched starch-based film. Through the transformation of enzyme action process conditions, the structural basis and molecular mechanism of highly branched starch film formation are explored, and the performance optimization and dynamic regulation of edible film are realized, which lays a foundation for the application of starch film in different food fields, and provides new ideas and new means for food environmentally friendly and degradable packaging and application.

The utility model discloses a modification device for producing inorganic non-metal modified powder with good dispersity. The modification device comprises a semi-finished product bin (1), a first spiral reamer (2), an ion fan (3), a medicament barrel (4), a medicament spraying opening (5), a three-roller modification main machine (6), a cyclone separator (7), a pulse cloth bag collector (8), an induced draft fan (9), a recycled powder bin (10), a second spiral reamer (11), a packaging machine (12) and a material drying room (13). According to the device, the three-roller modification host machine is adopted to finish surface modification, so that the modification effect is good; powder modified by the three-roller modification main machine is less in agglomeration and good in dispersing performance after being separated by the air separator; the ion fan ionizes air to generate a large amount of positive and negative charges, so that charges on the surface of the powder during high-speed friction, collision and shearing can be neutralized, and the static electricity removal treatment of the powder is realized; the device can realize continuous production, and is high in yield and low in energy consumption; and the method conforms to green development, and is energy-saving and environment-friendly.

The invention discloses a light aluminum alloy material, a preparation method thereof and application of the light aluminum alloy material in a new energy automobile, and belongs to novel aviation aluminum alloy materials. The aluminum alloy comprises the following components: magnesium, manganese, copper, zinc, a transition element combination, chromium, strontium, titanium, nano silicon carbide, a main material aluminum and other inevitable impurities. By optimizing the element composition, adding the inorganic nanoparticles, effectively refining crystal grains and improving the system density and being assisted by an efficient surface treatment means, the obtained aluminum alloy material has good comprehensive mechanical properties and corrosion resistance, is suitable for being used in parts such as a battery shell and a battery protection plate of a new energy automobile, effectively protects a battery, and has a good application prospect. And meanwhile, the device is also suitable for parts such as frames and is light and durable.

The present invention relates to the technical field of polymer composite materials, and specifically discloses a straw fiber modified wood plastic composite material. In the present invention, the straw fiber modified wood plastic composite material includes the following raw materials in parts by mass: 100 parts of polypropylene resin, 25-35 parts of flame retardant modified straw fiber, 3-5 parts of maleic anhydride grafted polypropylene, 12-20 parts of synergist, 1-3 parts of antibacterial agent, 1-1.5 parts of stabilizer and 1-3 parts of lubricant, wherein the flame retardant modified straw fiber is prepared from straw fiber powder, basalt fiber and organic flame retardant 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, and the straw fiber renewable resources are recycled in the present invention, which improves its added value and has significant ecological and environmental benefits. Through chemical grafting, each raw material has good dispersibility and compatibility, and the obtained composite material exhibits excellent mechanical properties and flame retardant properties.

The invention provides a biomass adhesive and a preparation method thereof. The biomass adhesive comprises an elastomer modified epoxy resin adhesive component A and a biomass phenolic amine curing agent component B, compared with a conventional modification method of directly adding an external plasticizer, the preparation method of the elastomer modified epoxy resin comprises the following steps: pre-polymerizing elastomers such as rubber and a functional monomer, and carrying out ring-opening reaction on the pre-polymerized elastomers and the functional monomer and epoxy groups in liquid glycidyl ether epoxy resin to generate a sea-island structure prepolymer molecule with a preliminary prototype; the modification method can significantly improve the toughness and impact resistance of the prepared epoxy resin adhesive. The elongation at break of the biomass adhesive is larger than 100%, the impact strength can reach 180 KJ / m < 2 >, and the biomass adhesive has the advantages of being high in bonding strength, resistant to corrosion, high in structural strength after curing and the like and has wide application prospects and market potential.

The object of the present invention is to provide a novel method for producing polyacetal resins that can easily modify polyacetal resins and provide various modified polyacetal resins. [Solution] The object of the present invention is achieved by a method for producing a modified polyacetal resin, which comprises at least the following steps: step (1) of polymerizing monomers with a protonic acid catalyst to produce a crude polyacetal polymer; and step (2) of deactivating the protonic catalyst while reacting the crude polyacetal polymer with an organic compound having a hydroxyl group.

The invention discloses a water-based lithium ion battery. The battery comprises a battery shell, and a positive electrode, a negative electrode, a water-based electrolyte and a diaphragm which are arranged in the battery shell, an active substance of the positive electrode comprises LiCoO2, LiMn2O4, LiFePO4 or LiNi < 0.5 > Mn < 1.5 > O < 4 >, and a material of the negative electrode comprises one or more of alpha-MnO2, gamma-MnO2 and delta-MnO2. According to the water-based lithium ion battery disclosed by the invention, the water-soluble lithium salt with high safety and the additive are used as the electrolyte, so that the safety performance of the battery is improved; according to the invention, LiCoO2, LiMn2O4, LiFePO4 or LiNi0. 5Mn1. 5O4 is adopted as the positive electrode, and one or more materials of alpha-MnO2, gamma-MnO2 and delta-MnO2 are adopted as the negative electrode, so that the aqueous lithium ion battery has the advantages that the negative electrode material is low in cost and high in discharge platform, the open-circuit voltage of the aqueous lithium ion total battery matched with the positive electrode is relatively low, and the overall stability of the aqueous lithium ion battery is improved within the decomposition voltage of an aqueous electrolyte; the additive is added into the electrolyte, so that water decomposition is inhibited, an electrochemical window of water decomposition in a system is widened, and the electrochemical performance is improved.

The invention discloses a preparation method and application of Chinese chestnut powder with a low glycemic index, and belongs to the technical field of Chinese chestnut powder processing.The preparation method comprises the following steps that fresh raw Chinese chestnuts are subjected to shelling, dehulling and crushing treatment, and Chinese chestnut thick slurry precipitates are extracted through alkaline treatment; putting the chestnut thick slurry precipitate into a drying oven for drying treatment, and then grinding and screening to obtain chestnut starch; adding pure water into the obtained Chinese chestnut starch to prepare starch milk; adding lipase with a specific concentration into the starch milk in a coupling manner, and treating under a plasma micro-jet working condition to obtain Chinese chestnut starch milk; and performing ultrasonic treatment on the prepared Chinese chestnut starch milk, and then performing drying, grinding and screening treatment to obtain the finished product Chinese chestnut powder with the low glycemic index. The prepared Chinese chestnut powder has a low glycemic index, and meets the requirements of diabetic patients, obese people and people with special requirements.