132 results about "Magnesium silicate" patented technology

The invention discloses a method for recovering high-purity fluorine and silicon from fluorine-silicon slag and co-producing a low-alkali fluorine-free accelerator, which comprises the following steps: S1, dissolving the fluorine-silicon slag in a sodium hydroxide solution to obtain a solution A; s2, adding dilute sulphuric acid into the solution A, reacting until gel is obtained, and filtering to obtain filtrate A and high-purity silicon dioxide gel; s3, adding calcium sulfate and EDTA (Ethylene Diamine Tetraacetic Acid) into the filtrate A, stirring and reacting, and filtering after the reaction is finished to obtain calcium fluoride and filtrate B; and S4, taking clear water, heating, carrying out heat preservation, then adding aluminum sulfate, lithium sulfate, diethanol amine and the filtrate B obtained in S3, continuously stirring until the aluminum sulfate is completely dissolved, then adding hydrated magnesium silicate, continuously carrying out heat preservation stirring, and obtaining the low-alkali fluorine-free accelerator after stirring is finished. The method is simple in process and easy to implement industrially, and fluoride and silicon oxide obtained through separation are high in purity and beneficial to follow-up extension application; more importantly, high-value recycling of the fluorosilicon slag is achieved, and the problems of stockpiling waste and environmental pollution of the fluorosilicon slag are solved.

The invention relates to the field of pesticides, and particularly discloses a pH-light dual-response nano pesticide and a preparation process thereof. The invention relates to a preparation method of a pH-light dual-response nano insecticide. The preparation method comprises the following steps: adding water into polyethylene glycol, castor oil polyoxyethylene ether and sodium lignin sulfonate to prepare a water phase; the preparation method comprises the following steps: uniformly mixing an efficient cyhalothrin active compound with xylene, and adding diisocyanate to prepare an oil phase; adding the oil phase into the water phase, and adding ethylenediamine, YUS-SC3A, glycerol, xanthan gum, magnesium aluminum silicate and benzoic acid to obtain the lambda-cyhalothrin microcapsule suspending agent. The preparation method comprises the following steps: adding water into YUS-SC3A, uniformly mixing, and adding a clothianidin active compound, glycerol, xanthan gum, magnesium aluminum silicate, AF205 and benzoic acid to obtain a clothianidin suspending agent; mixing the two agents to obtain the nano insecticide, adding the composite dispersant, adding the pre-gel, adding azodiisobutyronitrile, blowing with inert gas, and adding Kathon. By preparing the pH-light dual-response nano insecticide, the insecticidal effect is improved, the generation of drug resistance is avoided, and efficient prevention and control of wheat aphids are realized.

Cement-based retarding mortar test mold and preparation method thereof, relate to the technical field of retarding mortar test mold, and particularly relate to a cement-based retarding mortar test mold and a preparation method thereof.The cement-based retarding mortar test mold comprises a test mold main body, the test mold main body is a cement-based test mold, the compressive strength value is 155-170 MPa, and a test groove is arranged in the test mold main body; the inner surface of the test groove is sprayed with a composite aqueous solution of sodium silicate, magnesium fluorosilicate and potassium fluorosilicate for surface treatment, and the spraying ratio is that the mass ratio of sodium silicate, magnesium fluorosilicate, potassium fluorosilicate and deionized water is (2.9-3.1) :(1.9-2.1) :(0.9-1.1) :(3.9-4.1). The cement-based retarding mortar test mold has the positive effect that the test data in a laboratory can be matched with the field construction data, and production enterprises can adjust the mixing ratio in time according to the field construction to improve the engineering quality.

The application belongs to the field of ceramic ink, and discloses a concave engraving ceramic ink with obvious line effect and no background color and application thereof. The first part of the ink contains bismuth vanadate, and the second part contains hydrated magnesium silicate and / or fumed silica. The inventor finds that the finer the particle size of the bismuth vanadate, the lighter the background color after firing, and the specific surface area of the hydrated magnesium silicate and / or fumed silica is relatively large, which can be well combined with the bismuth vanadate to form a glass phase to dissolve the background color formed by vanadium elements in a high-temperature molten state. After the hydrated magnesium silicate and / or fumed silica is ground, the ceramic ink with a more hydrophobic enamel stripping effect can be formed. The first part makes the glaze surface form a concave effect, and the second part has a hydrophobic and enamel-repellent effect, and the two mechanisms jointly act to achieve the effect of obvious line effect and no background color. The concave engraving ceramic ink has excellent printing performance, and the concave line effect of the ceramic tile is obvious and has no background color.

The application discloses a method for preparing a magnesium silicate hydrate cement material by using sepiolite, and the method comprises the following steps: dissolving sepiolite by using a strong acid, and separating a solution and a residue; adding NaOH into the solution to obtain Mg(OH)2 precipitate; separating the Mg(OH)2 precipitate, and calcining to obtain MgO; mixing a water reducing agent, the residue and the MgO, and adding water to maintain, so as to obtain the magnesium silicate hydrate cement material. The method uses sepiolite which is rich in the earth's crust as a main raw material, and realizes low-cost and large-scale preparation of the magnesium silicate hydrate cement material.

The invention relates to the technical field of frying oil treatment, in particular to a frying oil purification method which comprises the following steps: preparing an antioxidant part; wherein the anti-oxidation piece is composed of stainless steel, a microporous silicon dioxide layer, vitamin E and a slow-release film; putting the antioxidant part into the frying oil in advance to start frying operation, after the frying operation is finished, taking out the antioxidant part, carrying out separation treatment, and removing food residues to obtain roughly filtered oil; and adding the modified adsorbent into the coarsely filtered oil, heating and stirring for adsorption and purification, taking out after adsorption and purification are finished, and filtering. Wherein the modified adsorbent is prepared from activated clay and magnesium silicate. The modified adsorbent is prepared from the activated clay, the sodium silicate and the magnesium sulfate, so that the activated clay and the magnesium silicate are compounded; wherein the activated clay is high in deacidification and decolorization capacity, the magnesium silicate is selective in depolarity and low in oil loss, and the activated clay and the magnesium silicate are compounded to complement each other in advantages, so that efficient purification of the frying oil is realized.

The application discloses a high-opening transparent polyethylene film, which is prepared from the following raw materials: 100 parts by mass of linear low-density polyethylene, 0.025-0.055 parts by mass of a compounded opening agent, 0.05-0.20 parts by mass of a slip agent and 0.05-0.20 parts by mass of an antioxidant; the compounded opening agent is compounded from silane-modified silicon dioxide, hydrated magnesium silicate and a cyclic olefin polymer, the mass ratio of the silicon dioxide, the hydrated magnesium silicate and the cyclic olefin polymer is 1:1:2-3:3:1, the slip agent is erucic acid amide, and the melt mass flow rate of the cyclic olefin polymer at 230 DEG C and under a load of 2.16KG is 3-10 g / 10min. By compounding the three opening agents, the amount of the silicon dioxide used is greatly reduced compared with the prior art.

The invention discloses an efficient deionizing neutralizer for strongly acidic pickling wastewater and a preparation method of the efficient deionizing neutralizer, and belongs to the technical field of industrial wastewater treatment. The neutralizer is prepared by carrying out pure physical crushing, grinding, screening and compounding on magnesium silicate minerals, aluminum clay minerals and siliceous inert minerals, is white powder, has the density of 1.15-1.25 g / cm < 3 >, is not dissolved, not hydrolyzed and not reacted with water in pure water, is only subjected to directional proton consumption reaction with H under the strongly acidic condition with the pH value of 0-3, and can be used for preparing a high-purity high-purity high-purity magnesium oxide. After the pH value of the wastewater is rapidly increased to 4-5, the device is automatically stopped. The whole process of the preparation method is physical processing, high-temperature calcination is avoided, and chemical modification is avoided. The method provided by the invention solves the problems of scaling, large sludge amount and difficult pH control of the traditional neutralizer, has the advantages of greenness, environmental protection, safety, easy operation and low cost, and is suitable for strong acid pickling wastewater treatment in steel, electroplating and metal processing industries.

The invention discloses stone-like paint taking lithium magnesium silicate and guar gum as main bodies and introducing a graphene family lamellar material as well as a preparation method and application of the stone-like paint, and belongs to the technical field of building coatings. The graphene family lamellar material exists at a low doping amount of 0.02-0.15% (based on a whole formula, solid content), preferably, the graphene family lamellar material is pre-compounded with magnesium lithium silicate according to a mass ratio of 10: 1-50: 1 to form a Lp-G (O) hybrid, and an S3 pre-dispersion dropwise adding step is newly added in the process of S1-S6, and a window with the pH value of 8.0-9.0 and the construction viscosity of 90-110 KU is matched, so that lamellar layers are subjected to in-plane orientation, and a'labyrinth path 'barrier is formed; according to the formula, styrene-acrylic emulsion is continuously adopted to form a film, and stone-like textures are constructed by graded quartz sand (40-80 meshes: 80-120 meshes: 120-180 meshes = 2: 3: 5). Compared with a contrast formula which does not contain a layer material, the water resistance / alkali resistance, artificial aging resistance, adhesive force and appearance retention are remarkably improved, meanwhile, construction rheology and stone-like appearance are kept, and the stone-like coating is suitable for interior and exterior wall decoration.

The present invention relates to a method for preparing an eco-friendly functional corrugated-cardboard adhesive composition for food preservation, corrugated cardboard manufactured by using the preparation method, and a corrugated cardboard box. The method for preparing an eco-friendly functional corrugated-cardboard adhesive composition for food preservation includes using modified starch that is made by mixing native starch, zeolite, and magnesium silicate.

The invention discloses a doxazosin mesylate sustained-release tablet and a preparation process thereof, and relates to the technical field of doxazosin mesylate sustained-release tablets.The sustained-release tablet comprises a double-layer tablet core composed of a first sustained-release layer and a second sustained-release layer; the double-layer tablet core is prepared from the following components in parts by mass: a first slow-release layer and a second slow-release layer; the first slow-release layer is prepared from the following components in parts by mass: 2.4 parts of chitosan-TPP modified doxazosin mesylate, 10 to 12.5 parts of citric acid-cassava starch, 12.5 to 15 parts of magnesium aluminum silicate-cassava starch, 40 to 60 parts of microcrystalline cellulose and 3 to 4 parts of magnesium stearate; the second slow-release layer is prepared from the following components in parts by weight: 2.4 parts of chitosan-TPP modified doxazosin mesylate, 1.44 to 3.36 parts of carrageenan, 130 to 140 parts of polyethylene oxide, 30 to 40 parts of sodium alginate, 55 to 65 parts of citric acid, 67 to 77 parts of microcrystalline cellulose and 3 to 4 parts of magnesium stearate.

This invention discloses a softening treatment device and method for high-temperature oilfield wastewater, relating to the field of wastewater treatment technology. Oilfield wastewater enters a pre-desorption tank for impurity removal. The barium-strontium adsorption tank contains, from top to bottom, a fine quartz sand layer, a chelating resin layer, and a coarse quartz sand layer. The silicate pre-desorption tank contains an acid-base regulator, a dispersant, and a magnesium oxide suspension. The carbonate softening tank contains a dispersant, a coagulant aid, a soda ash solution, and a chelating agent. The stabilizing tank contains, from top to bottom, a modified activated carbon layer and an exchange resin layer. This invention uses the pre-desorption tank to initially separate oil, suspended solids, and corrosion products. A specialized chelating resin selectively adsorbs barium-strontium ions. In the silicate pre-desorption tank, pH is precisely controlled and magnesium oxide is added to directionally generate settleable magnesium silicate flocs. In the carbonate softening tank, crystal form control and coagulation aid work synergistically to promote the precipitation of calcium and magnesium in the form of large calcite particles.

This invention relates to the field of biomedicine and hygiene disinfection products technology, and discloses a method for preparing a slightly acidic oxidizing potential hydrogel. The gel is made from slightly acidic oxidizing potential water and an inorganic gelling agent, lithium magnesium silicate. The preparation method includes: separately preparing strongly acidic oxidizing potential water and alkaline reducing potential water by electrolysis; mixing the two online in a preset ratio; adjusting the pH value to 5.0 to 6.5 through a neutralization reaction; subsequently adding lithium magnesium silicate; and then dispersing the mixture through high-speed shearing and sealing for static swelling to form a gel. This invention solves the problems of easy decomposition of available chlorine and gel liquefaction by utilizing an inorganic gel system, resulting in a gel with high stability and a long shelf life. This product solves the problem of easy loss of liquid disinfectants, prolongs the bactericidal effect time on wounds and oral ulcers, and is non-irritating and non-sensitizing to the skin, making it suitable for long-term disinfection of hands, skin, and mucous membranes.

Facade (1) for arrangement on an exterior wall (2) of a building (3), comprising: an insulating layer for thermal insulation, characterized by: a fire protection layer to increase the fire resistance of the building (3), wherein the fire protection layer comprises at least one fire protection board (5A) containing magnesium silicate, preferably talc, wherein the insulating layer comprises at least one insulating board (4) with foam insulating material, preferably made of polystyrene.

The application provides a palygorskite-based magnesium silicate anthraquinone regenerative catalyst and a preparation method thereof, the chemical formula of the anthraquinone regenerative catalyst is Mg4Si6O15(OH)2·6H2O, and the preparation method comprises the following steps: (1) obtaining a palygorskite-based SiO2 precursor through hydrothermal acidification of palygorskite; (2) uniformly mixing the palygorskite-based SiO2 precursor, an ammonium salt, a magnesium salt and ammonia water through ultrasonic mixing; and (3) transferring the mixed solution to a hydrothermal kettle to generate palygorskite-based magnesium silicate through hydrothermal reaction. The application takes palygorskite as a silicon source and a template, has the advantages of wide raw material source, simple preparation process, low production cost, green environmental protection and convenience for industrialized production, etc. The palygorskite-based magnesium silicate prepared by the application can be used as a solid alkali catalyst, and has the advantages of non-toxicity, environmental protection, high catalytic activity, long service life and the like.

The invention discloses a method for measuring the content of petroleum in a desulfurization solution. The method comprises the following steps: 1) collecting or preparing the desulfurization solution on site; 2) carrying out distillation treatment, dehydration, magnesium silicate adsorption and filtration on the desulfurization solution to obtain a petroleum standard oil sample; or field petroleum is used for dehydration, magnesium silicate adsorption and filtration treatment, and a standard oil sample is prepared; (3) preparing a standard sample series by using the standard samples, and making a standard working curve by using an infrared oil measuring instrument; 4) extracting petroleum in the desulfurized amine liquid by using environment-friendly carbon tetrachloride, and performing oscillation, demulsification, standing, separation, dehydration and magnesium silicate adsorption to obtain an extract; 5, the absorbance is measured and converted through an infrared oil measuring instrument, and the numerical value of the petroleum content in the desulfurization solution is workped.The method belongs to the technical field of component analysis, the implementation process is rapid, simple and convenient, used instruments and agents are stable and low in price, and the requirement for measuring the petroleum content in the desulfurization solution is met.

The present invention relates to a secondary battery electrolyte additive comprising milled magnesium silicate, a secondary battery electrolyte comprising same, and a method for producing same and, more specifically, to magnesium silicate for a secondary battery electrolyte additive which is prepared by subjecting a mixture of magnesium silicate and a methyl ethyl ketone (MEK) solvent to primary milling using a bead mill and to secondary milling using a nano mill, as well as to a secondary battery electrolyte comprising same and a method for producing same. The present invention can provide an optimal content of the secondary battery electrolyte additive for enhancing capacity retention in a secondary battery electrolyte, and can provide a method for producing nano-sized magnesium silicate capable of reducing the process time through mechanical milling.

The invention discloses a preparation method of a buried steel pipeline Zn-Mg-Al-Mn sacrificial anode material for improving a smelting process in the technical field of metal corrosion protection, and the core of the method is that a brand new prepared nitrogen-sulfur co-doped carbon nanocage loaded nano zinc oxide and magnesium silicate heterojunction composite nanomaterial is used as a modifier; the preparation method comprises the following steps: preheating, mixing and wrapping with magnesium, aluminum and manganese metal raw materials, adding into molten zinc liquid, uniformly dispersing a modifier and alloy elements through multi-stage temperature control smelting, carrying out argon refining, standing, casting, and carrying out surface treatment and low-temperature stabilization heat treatment on a casting to finally prepare the high-performance sacrificial anode material. According to the preparation method, the multifunctional nano modifier is combined with a simplified smelting process, the alloy structure is remarkably refined, and the corrosion process is actively regulated and controlled, so that the sacrificial anode which is excellent in electrochemical performance, uniform in dissolution and long in service life is prepared, and the sacrificial anode is suitable for efficient and long-acting cathode protection of a buried steel pipeline.

The application discloses a propiconazole-azoxystrobin- clothianidin seed treatment suspending agent and a preparation method and application thereof, and belongs to the technical field of pesticide preparations; the agent takes propiconazole, azoxystrobin and clothianidin as active ingredients, takes beta-nicotinamide mononucleotide (NMN) as a functional antimicrobial component, and is supplemented with styrene-maleic anhydride copolymer sodium salt, fatty alcohol polyoxyethylene ether, xanthan gum, magnesium aluminum silicate, glycerol, polydimethylsiloxane defoaming agent, sodium benzoate, polyvinyl alcohol and deionized water to prepare the agent. The application is suitable for seed coating treatment for preventing and treating rice false smut, thrips and wheat sharp eyespot and aphids; NMN promotes the accumulation of phenolic compounds in the phloem of plants, and cooperates with clothianidin on the same insecticidal target, thereby significantly improving the prevention and treatment effect on aphids and thrips; the degradation product of NMN promotes the proliferation of beneficial microorganisms in the rhizosphere, improves soil enzyme activity, and realizes soil micro-ecological restoration.

This application relates to the field of artificial stone technology, specifically to an artificial marble and its preparation method. The artificial marble of this application comprises the following components in parts by weight: 100 parts marble powder, 8-12 parts aliphatic polyisocyanate, 20-30 parts polypropylene glycol, 0.2-0.3 parts dibutyltin dilaurate, 10-15 parts cellulose ether modified magnesium lithium silicate, 5-7.5 parts polyvinyl acetate, and 2-3 parts flame retardant. This application uses aliphatic polyisocyanate to replace unsaturated polyester resin, reducing unsaturated double bonds in the system. Combined with cellulose ether modified magnesium lithium silicate and polyvinyl acetate, it improves the mechanical properties of the marble, thereby obtaining an artificial marble with excellent weather resistance, stain resistance, mechanical strength, and flame retardancy.

The invention discloses a preparation method of super-elastic cotton for underwear, and relates to the field of textile fabrics, and the super-elastic cotton is prepared by blending cotton fibers and spandex fibers; wherein the cotton fibers are pretreated as follows: the cotton fibers are soaked in a pretreatment solution, and the pretreatment solution comprises an alkaline solution of magnesium lithium silicate and ionic liquid; the cotton fibers are soaked in the pretreatment solution, an alkaline solution in the pretreatment solution can clean impurities in the cotton fibers, and magnesium lithium silicate is attached to the surfaces of the cotton fibers, so that the cotton fibers are loose in structure and not prone to breakage, and the air permeability is improved; the ionic liquid is combined, so that the performance stability of the cotton fibers in the blending process can be improved; in addition, the spandex fibers are soaked in the mixed solution, so that the antistatic performance of the spandex fibers in the blending process is improved, and the production quality is optimized.

The invention relates to the technical field of marking adhesives, in particular to an aircraft high-temperature-resistant torque marking adhesive and a preparation method and application thereof.The aircraft high-temperature-resistant torque marking adhesive is prepared from, by mass, 50%-60% of Dynasyl SIVO 140, 1%-2% of magnesium lithium silicate, 2%-3% of hydrophilic vapor-phase silicon dioxide, 35%-41% of filler, 1%-2% of mildew preventive and 1%-2% of europium-doped silicate fluorescent powder. The water-based inorganic sol-gel resin DynasylanSIVO 140 based on a silane technology is used as an adhesive, can resist the high temperature of 1000 DEG C, does not crack, and can be cured at room temperature; meanwhile, europium-doped silicate fluorescent powder is added into the components of the marking glue, so that yellow-green fluorescence can be displayed under the irradiation of 365nm ultraviolet light, the visibility of tiny cracks is improved, and the detection sensitivity is improved; in addition, the airplane high-temperature-resistant torque marking adhesive is prepared according to the mass percent, can meet the technical index of the enterprise standard BMS8-45 of the Boeing company, and has high efficiency and reliability.

The invention discloses a multifunctional efficient hemostatic sponge and a preparation method and application thereof, and belongs to the technical field of biomedical materials. The hemostatic sponge is prepared by compounding magnesium aluminum silicate loaded with a polyphenol compound with a gelatin matrix, crosslinking and freeze-drying. The polyphenol compound is selected from one or more of tannic acid, gallic acid, EGCG (epigallocatechin gallate) and quercetin. The preparation method comprises the following steps: dispersing magnesium aluminum silicate into colloid; loading a polyphenol compound on the magnesium aluminum silicate to obtain a composite material; uniformly dispersing the composite material in a gelatin solution, and adding a cross-linking agent for cross-linking; and finally, freeze-drying and forming. Synergistic interaction is achieved through the rapid water absorption and coagulation promoting characteristics of the magnesium aluminum silicate, the physical support effect of the gelatin and the long-acting antibacterial and anti-inflammatory functions of the polyphenol compound, and the obtained sponge has a porous structure, excellent hemostatic performance, lasting antibacterial activity, good biocompatibility and degradability, and can be used for preparing the medical hemostatic sponge. The device is suitable for surgical operation, wound first aid and infected wound surface treatment.

This invention discloses a method for preparing high-density bulk polycrystalline serpentine under hot isostatic pressing, comprising: sealing serpentine sample powder under a vacuum of 10... –3 The steel cladding was placed inside the graphite furnace cylinder of the high-pressure vessel of a hot isostatic pressing (HIP) apparatus, and a graphite sealing cap was placed on top. Using argon as the pressure transmission medium, the temperature inside the sample chamber of the cylinder was raised to 800 °C and the pressure to 95.1 MPa using a multi-gradient cylinder heating and pressurization method, and the temperature and pressure were maintained for 8 hours. Then, the temperature inside the sample chamber of the cylinder was reduced to 167 °C and the pressure was reduced to 64.4 MPa. Finally, the pressure was released and the temperature was cooled to room temperature to obtain polycrystalline serpentine aggregate. This method fills the technical gap in the preparation of large-volume, water-rich magnesium silicate mineral experimental samples of high-density polycrystalline serpentine aggregate under high temperature and high pressure conditions.

Disclosed herein are penetration compositions comprising a 1,3-propanediol carrier and a binder or a copper-based wood penetration composition. The binder can be, e.g., sodium silicate, sodium carbonate, trisodium phosphate, potassium silicate, lithium silicate, magnesium silicate, calcium silicate, ammonium silicate, or a combination thereof. Also disclosed herein are methods of improving stability and penetration of binder into a substrate comprising impregnating the substrate with the presently disclosed penetration compositions.

The invention discloses a diatomite-coal gangue composite microbial agent carrier for ecological restoration of a mining area and a preparation method thereof, and belongs to the field of environmental microbial technology and solid waste resource utilization. The carrier comprises the following raw materials in percentage by mass: 10%-70% of modified diatomite, 10%-70% of modified coal gangue, 1%-10% of nutrient substances and 5%-15% of a mineral binder, and a microbial agent is arranged on the carrier. The modified diatomite is a porous material with a rodlike magnesium silicate nanostructure generated on the surface through a hydrothermal method, and the specific surface area of the modified diatomite is obviously higher than that of original diatomite. The modified coal gangue is a porous material which is subjected to crushing, acid pickling and calcination pretreatment and then loaded with a silicate nanostructure on the surface through a hydrothermal method, and the specific surface area of the modified coal gangue is higher than that of original coal gangue. The two solid wastes are subjected to high-value utilization and are used as microbial carriers for repairing mining areas, and the survival rate of microorganisms is greater than 90%.

This invention belongs to the field of pesticide formulations, specifically relating to a fungicidal composition comprising diyzoxystrobin and cyazofamid and its application; comprising the following components in weight percentage: diyzoxystrobin 5-15%, cyazofamid 5-15%, Tersperse 2510 1-4%, Morwet D-390 1-4%, Agrlian-755 1-4%, magnesium aluminum silicate 0.5-1.5%, organobentonite 0.2-0.8%, propylene glycol 2-6%, sodium chloride 0.5-1.5%, SAG 1522 0.1-0.3%, and deionized water to make up to 100%. The suspension prepared by this invention has excellent formulation properties and excellent control effect on potato late blight.

The invention discloses a preparation method of a fullerene-containing metal wear self-repairing material for a transmission lubricating system, and relates to the technical field of lubricating materials. Comprising the following steps: (1) pretreating raw materials, and preparing artificially synthesized nano hydroxyl magnesium silicate, fullerene-nano indium composite powder and micro-nano composite hydroxyl magnesium silicate powder; (2) preparing a fullerene-indium-copper-lithium quaternary composite dispersion liquid; (3) mixing the micro-nano composite hydroxyl magnesium silicate powder and the composite dispersion liquid in the modified base oil in a gradient manner, and adding an antioxidant and an anti-settling agent; and (4) regulating the particle size to D50 = 500-800nm and the viscosity to 150-200mm / s at 40 DEG C, and carrying out vacuum degassing and packaging to obtain a finished product. According to the method, shutdown-free in-situ repair of the worn surface of the transmission system is achieved, the friction coefficient is reduced to 0.02-0.06, the hardness of the metal surface is improved by 1-2 times, and the service life of equipment is prolonged by one time or above.

This invention belongs to the technical field of secondary battery components. More specifically, it relates to a tab for a cylindrical battery and its preparation method. The tab for a cylindrical battery of this invention includes a conductive sheet substrate; the conductive sheet substrate includes a connecting portion for electrical connection and a non-connecting portion adjacent to the connecting portion; the surface of the non-connecting portion is coated with an insulating layer; wherein the insulating layer includes a photocurable resin and hydrated magnesium silicate dispersed in the photocurable resin. The ratio of the thickness of the insulating layer to the thickness of the tab is 0.01-0.3, and the thickness of the tab is 0.5-3 mm; the D50 of the hydrated magnesium silicate is 1-5 μm; the D90 of the hydrated magnesium silicate is not greater than 10 μm, and the particle size distribution span of the hydrated magnesium silicate is not greater than 2.0.

This invention discloses a carbon-ceramic brake disc and its preparation method, relating to the field of carbon-ceramic brake disc technology. This invention uses plain weave fabric instead of non-woven fabric, increasing the structural strength. Furthermore, the friction layer uses a mesh, solving the defect of easy shedding of non-woven fabric on the friction surface. The mesh fiber content is significantly reduced, increasing the ceramic content on the friction surface, thereby improving the material's wear performance. This invention prepares a wear-resistant magnesium hydroxysilicate, then combines it with porous molybdenum disulfide. By adding ferric chloride and ferric chloride tetrahydrate, the porous molybdenum disulfide-magnesium hydroxysilicate composite is loaded with iron oxide, further improving the strength and wear resistance of the carbon-ceramic brake disc.