338results about How to "Reduce clumping" patented technology

The invention relates to the field of functional master batch materials, in particular to a phase-change energy temperature-adjusting fiber master batch and a fat-burning fabric thereof. The phase-change energy temperature-regulating fiber master batch is prepared from a composite phase-change material and polyethylene glycol terephthalate slices through melt extrusion and granulation, the fat-burning fabric is prepared from the phase-change energy temperature-adjusting fiber master batch and polyethylene glycol terephthalate slices through melt spinning, network compounding and weaving processing. By introducing the microencapsulated phase-change material and the high-thermal-conductivity filler, in the melt extrusion process, the microencapsulated phase-change material and the high-thermal-conductivity filler can be uniformly dispersed in the matrix material to form stable fiber master batches, form an efficient thermal-conductivity structure and provide excellent thermal regulation performance; meanwhile, microencapsulation can improve the stability and dispersity of the phase-change material, and the fat-burning fabric is prepared through melt spinning and weaving of fiber master batches, so that the heat-conducting property of the product is improved, and the continuous fat-burning effect is achieved.

The invention relates to the technical field of lithium iron phosphate grinding, in particular to a grinding device for lithium iron phosphate production and a grinding method.The device comprises a tank body, a driving assembly and a first grinding assembly, a tank cover is installed at the top of the tank body, the driving assembly comprises a driving motor installed at the top of the tank cover, and a rotating shaft is fixedly arranged on an output shaft of the driving motor; the rotating shaft vertically extends into the tank body, the first grinding assembly is installed on the rotating shaft and comprises a first grinding seat, the first grinding seat is rotationally connected to the rotating shaft in a sleeving mode, the peripheral wall of the first grinding seat is fixedly arranged on the inner wall of the tank body, a conical groove is formed in the top face of the first grinding seat, and the rotating shaft is fixedly sleeved with a conical block; and a scraper is fixedly arranged on the peripheral wall of the conical block through a connecting block. According to the invention, the control capability on the granularity of the lithium iron phosphate material is improved, the uniform distribution of the granularity of the material is ensured, the problem of excessive grinding or insufficient grinding is avoided, the risk of material caking caused by the grinding wheel in the grinding process is reduced, and the grinding efficiency is improved.

The invention discloses a heat insulation aluminum profile and a preparation method thereof, and belongs to the technical field of aluminum profile preparation. The heat insulation coating is electrostatically sprayed on the surface of the aluminum profile, the coating takes epoxy resin as a matrix, the aluminum profile is separated from the external environment, and the corrosion resistance and the heat insulation performance of the aluminum profile are improved; compared with common nano ATO, the prepared modified nano ATO has better compatibility with an epoxy resin matrix, the agglomeration phenomenon is obviously reduced, and the heat insulation performance of the coating can be greatly enhanced; the prepared modifier can significantly enhance the flame retardance and heat resistance of the coating, can promote curing of epoxy resin, is grafted on nano ATO, and is stable in performance and not prone to falling off; therefore, the prepared aluminum profile is excellent in heat insulation property and corrosion resistance, the coating sprayed on the surface of the aluminum profile has stable and efficient flame retardance and heat resistance, and the aluminum profile has important application value in the technical field of aluminum profile preparation.

The invention relates to the field of precursor material drying, and provides a drying device capable of continuously processing a precursor material, comprising: a mounting table; the housing is fixedly arranged on one side of the upper part of the mounting table; a discharge hole is obliquely formed in the upper part; the air guide volute is fixedly connected to the lower end part of the housing, and an air inlet pipe is arranged at a volute tongue of the air guide volute; and the shunting turbofan is arranged in the air guide volute and consists of an upper side plate, a lower side plate and a plurality of arc-shaped fan blades which are uniformly arranged in the side plates at intervals. A precursor material is sprayed into the drying equipment in a mist shape through the spraying mechanism, continuous feeding of materials with different moisture contents is achieved for continuous processing, the phenomena of agglomeration and drying scaling of the materials when the materials enter the drying area of the equipment are effectively reduced, meanwhile, heat discharged during drying is recycled through the heat recovery pipe, and the energy consumption is reduced. And while the production energy consumption is reduced, the product granularity and granularity distribution are effectively controlled, and the drying uniformity is ensured.

The invention discloses an ablation-resistant long-fiber reinforced nylon material for a battery pack, and relates to the technical field of nylon materials, the ablation-resistant long-fiber reinforced nylon material comprises the following raw material components by weight: 60-80 parts of nylon resin powder, 30-50 parts of a long-fiber reinforced material, 10-18 parts of aluminum diethylhypophosphite master batch, 8-15 parts of bromine-antimony composite master batch, 3-7 parts of montmorillonite, 12-20 parts of aluminum hydroxide, and 2-6 parts of nano-silica. The composite material is prepared from the following components in parts by weight: 1-4 parts of carbon nanotubes, 0.5-1.2 parts of an antioxidant I, 0.3-0.8 part of a lubricant I, 2-5 parts of a compatilizer, 0.1-0.4 part of a nucleating agent and 0.2-0.6 part of an anti-ultraviolet agent. By adding the diethyl aluminum hypophosphite master batch, the flame retardant property of the nylon material is improved, the processability of the nylon material is improved, the ablation resistance of the nylon material is improved, and the problems of insufficient flame retardant property, poor processability and poor ablation resistance of the nylon material can be solved.

The invention discloses a phase change fiber membrane with a composite core-sheath structure and a preparation method and application thereof.The method comprises the steps that polyacrylonitrile is dissolved in N 'N-dimethylformamide and stirred to be completely dissolved, then hydroxylated boron nitride is added, the hydroxylated boron nitride is evenly dispersed through ultrasonic treatment, and a sheath spinning precursor solution is prepared; dissolving polyethylene glycol in N 'N-dimethylformamide, stirring to melt the polyethylene glycol, and taking the polyethylene glycol as a core layer spinning precursor solution; preparing a phase change fiber membrane with a core-sheath structure from the sheath spinning precursor solution and the core spinning precursor solution through a coaxial electrostatic spinning process; and placing the phase change fiber membrane with the core-sheath structure in an ethanol dispersion liquid of hydroxylated boron nitride, carrying out ultrasonic dip-coating, and then carrying out cold pressing treatment to prepare the phase change fiber membrane with the composite core-sheath structure. The obtained composite core-sheath structure phase change fiber membrane has good latent heat property, thermal conductivity and flexibility, and meanwhile, leakage of the phase change material is prevented through the core-sheath structure.

The invention discloses a buccal nicotine product and a preparation method thereof, the buccal nicotine product comprises a nicotine composition and a permeation bag, the nicotine composition is packaged in the permeation bag, the permeation bag comprises a bag body and a moisturizing medium, and the moisturizing medium is used for keeping the humidity of the nicotine composition in the bag body. In the buccal nicotine product of the present application, the nicotine composition has a reduced risk of caking.

The utility model provides a polishing sand feeding mechanism of a sand blasting and polishing machine, belongs to the technical field of sand blasting and polishing machines, and aims to solve the problem that the mixing efficiency of the sand is influenced as the conventional sand is easy to agglomerate with a solution. Comprising a liquid distribution cylinder, a sand inlet pipe, a liquid inlet pipe, a discharging pipe, a hybrid driving motor, a stirring shaft, a filtering piece, a stirring and mixing mechanism and a distribution anti-blocking mechanism, the sand inlet pipe is fixedly connected to the upper part of the liquid distribution cylinder; the hybrid driving motor is fixedly connected to the lower part of the liquid distribution cylinder; the stirring shaft is rotationally connected to the interior of the liquid distribution cylinder, and the stirring shaft is coaxially and fixedly connected to the upper end of a rotating shaft of the hybrid drive motor; the filter part is arranged at the upper end of the interior of the liquid distribution cylinder and is of a conical filter screen structure; the stirring and mixing mechanism is arranged in the liquid distribution cylinder; and the distribution anti-blocking mechanism is arranged at the upper end of the stirring shaft, so that full mixing of sand and a solution is ensured, caking of the sand is reduced, and uniform mixing of the sand and the solution is ensured.

The invention discloses quartz sand high-temperature treatment equipment with a dual treatment technology, and relates to the technical field of quartz sand treatment.The quartz sand high-temperature treatment equipment comprises a fixed supporting structure, and the fixed supporting structure comprises a supporting bottom frame and supporting bases which are fixedly connected to the supporting bottom frame and located at the two ends of the supporting bottom frame; the rolling drying structure comprises a drying cylinder rotationally connected to the supporting base, a feeding cylinder rotationally connected to one end of the drying cylinder and located on one side of the supporting base, a feeding box fixedly connected to the end, away from the drying cylinder, of the feeding cylinder and a rolling drying mechanism rotationally connected to the other end of the drying cylinder and located on the other side of the supporting base. The discharging barrel is arranged on one side of the supporting base; and the conveying structure comprises a motor which is fixedly connected to the feeding barrel and located below the feeding box. The fluidity of quartz sand in the feeding cylinder is remarkably improved, the drying efficiency is improved, and the problem of uneven drying caused by caking is solved.

The invention belongs to the technical field of composite materials, and particularly relates to a carbon fiber composite material for preventing low-temperature medium leakage and a preparation method and application thereof. The carbon fiber composite material comprises carbon fibers, a resin matrix, modified nano-hydroxyapatite and an anti-seepage film, the mass percentage content of the carbon fiber is 45-69%, the mass percentage content of the resin matrix is 26-37%, the mass percentage content of the impermeable film is 2-10%, and the balance is modified nano-hydroxyapatite; the modified nano-hydroxyapatite, the impermeable film and other raw materials are added into the formula of the carbon fiber composite material, and the impermeable performance of the carbon fiber composite material in a low-temperature medium is comprehensively improved through the modified nano-hydroxyapatite and the impermeable film. Experimental results show that the thickness of the carbon fiber composite material is smaller than 3 mm, and the leakage rate under 3 MPa is smaller than 10 <-5 > Pa.m < 3 > / s.

The invention relates to a sponge capable of increasing the negative ion release amount, which comprises a sponge base material and a negative ion generating material, and the negative ion generating material is obtained by attaching a negative ion generating coating to a sponge base material body, the negative ion generation coating comprises the following components in parts by mass: 200-400 parts of waterborne polyurethane, 19-29 parts of tourmaline composite powder, 4-12 parts of rare earth mineral powder and 20-36 parts of a hydrophobic finishing agent, the tourmaline composite powder comprises chitosan, modified titanium dioxide, tourmaline powder and activated carbon. The sponge has the effect of improving the negative ion release effect of the sponge.

The invention provides a lightweight insulation composite cross arm. The lightweight insulation composite cross arm comprises an insulation core rod, a filler filled in the insulation core rod and an insulation umbrella skirt located outside the insulation core rod, the structure of the insulating core rod is a pipe body formed by modified continuous basalt fibers which are spirally arranged in multiple layers, and resin is adhered to the surfaces of the modified continuous basalt fibers; the structure of the modified continuous basalt fiber is as follows: basalt fiber chips are connected to the surface of the continuous basalt fiber through silica sol; the resin comprises the following raw materials: 100 parts of epoxy resin, 1-5 parts of a silane coupling agent, 5-8 parts of an auxiliary agent, 8-10 parts of basalt fiber chippings, 20-30 parts of a curing agent and 30-50 parts of a solvent. According to the invention, the continuous basalt fibers are modified by the basalt chips, and the basalt chips are used as a bridge, so that the interaction between the continuous basalt fibers and a resin matrix is increased, and the bending modulus and bending strength of the insulating core rod are improved.

The invention provides a large polyester bio-fiber containing rose active ingredients and a preparation method of the large polyester bio-fiber. The large polyester bio-fiber comprises the following raw materials in parts by weight: 10-12 parts of polyester chips and 2-3 parts of rose extract microcapsules, the preparation method of the rose extract microcapsule comprises the following steps: adding tannic acid into a sodium alginate aqueous solution, stirring and mixing to obtain a solution A, adding nano-hydroxyapatite, a calcium chloride / glutaraldehyde composite cross-linking agent, a rose extract and lauryl sodium sulfate into a chitosan acetic acid aqueous solution, stirring and mixing to obtain a solution B, and uniformly stirring to obtain the rose extract microcapsule. And mixing and stirring the solution A and the solution B to obtain the rose extract microcapsule. According to the polyester large biological fiber containing the rose active component and the preparation method of the polyester large biological fiber, the rose active component is effectively and uniformly introduced into the polyester fiber, meanwhile, the original physical performance of the fiber is kept, the stability of the active component is further kept, the slow release time is prolonged, and the polyester large biological fiber is endowed with more health functions.

The invention relates to the technical field of flame-retardant materials, in particular to a halogen-free low-smoke flame-retardant material and a preparation process thereof. The halogen-free low-smoke flame-retardant material is prepared from the following raw materials: an ethylene-vinyl acetate copolymer, linear low-density polyethylene, maleic anhydride grafted modified polyethylene, a composite flame retardant, magnesium hydroxide, a synergistic flame retardant, an interface modifier and the like. The composite flame retardant is prepared from a sulfydryl-containing silane coupling agent, aluminum hydroxide and vinyl acetate. A composite flame retardant is prepared from a mercapto silane coupling agent, aluminum hydroxide and vinyl acetate as raw materials, the composite flame retardant is introduced into a material system, the dispersity and compatibility of inorganic filler in a polymer group are improved, a more continuous cross-linked network structure is formed, high-speed dry mixing, melt mixing and extrusion molding by a double-shaft eccentric rotor extruder are adopted, and the flame-retardant composite material is prepared. The processability of the material and the quality of a final product are improved, and the flame retardant property of the material is improved through the synergistic effect of the synergistic flame retardant.

The invention provides a calcium carbonate modified polypropylene composite material and a preparation method thereof.The preparation method comprises the steps that calcium carbonate powder and a surfactant containing double bonds are mixed and stirred at the high temperature for preset time, and surface modified calcium carbonate is obtained; and mixing the surface modified calcium carbonate with polypropylene and an initiator, stirring for a preset time, and carrying out melt extrusion at 170-210 DEG C to obtain the calcium carbonate modified polypropylene composite material. The preparation method provided by the invention has the advantages of rapid activation and simple process, and the prepared surface modified calcium carbonate powder has the advantages of concentrated size distribution, uniform particle size and high activation degree, has good compatibility with polyolefin materials, can enhance the tensile strength and other mechanical properties of a composite material when being filled into a polymer, and has good application prospects. And good economic benefits are achieved.

The invention relates to the technical field of UV curing resin, and discloses high-temperature-resistant UV curing resin and a preparation method thereof. The UV curing resin prepared by the invention is prepared from the following components in parts by weight: 20 to 30 parts of acrylic resin, 30 to 40 parts of urethane acrylate, 15 to 25 parts of modified acrylic resin, 4 to 8 parts of trimethylolpropane triacrylate, 3 to 10 parts of reinforcing filler, 2 to 3 parts of photoinitiator, 0.3 to 0.5 part of defoaming agent and 0.5 to 1 part of flatting agent. The coating is prepared by taking acrylic resin, polyurethane acrylic resin and modified acrylic resin as base resin, adding a reinforcing filler, a functional additive and the like, and stirring and mixing, wherein the reinforcing filler is added, so that the high temperature resistance and the mechanical property of the matrix are improved; the modified acrylic resin is added, so that the wettability of the matrix is improved, and the adhesive force of the matrix is further improved. Therefore, the UV-cured resin can be widely applied to the fields of coatings, printing ink, adhesives and the like.

The invention provides a preparation method of silver-coated copper powder, and relates to the technical field of metal materials, the preparation method comprises the following steps: simultaneously dropwise adding a first silver-ammonia solution and a first reducing agent solution into a dispersion liquid of deoiled and activated spherical copper powder, reacting for 5-20 minutes after dropwise adding is finished, then simultaneously dropwise adding a second silver-ammonia solution and a second reducing agent solution, and reacting for 5-20 minutes after the reaction is finished; and reacting for 25-40 minutes, filtering, washing with water, and drying to obtain the silver-coated copper powder. The concentration of the first silver-ammonia solution is higher than that of the second silver-ammonia solution. The silver-coated copper powder obtained through the preparation method is good in particle regularity and size uniformity, few in agglomeration phenomenon, good in oxidation resistance and low in resistivity.

The invention relates to the technical field of epoxy resin, and discloses a polyarylamide modified boron nitride-epoxy resin composite material, hydroxylated nano boron nitride reacts with a diazo group of 4-diazo diphenylamine sulfate to obtain aminated nano boron nitride, the aminated nano boron nitride and a 3, 5-diaminobenzoic acid monomer are subjected to a polymerization reaction to obtain polyarylamide modified boron nitride, and the polyarylamide modified boron nitride-epoxy resin composite material is prepared through the following steps: reacting hydroxylated nano boron nitride with a diazo group of 4-diazo diphenylamine sulfate; the polyarylamide modified boron nitride has good compatibility with epoxy resin, amino-terminated groups can be subjected to ring-opening reaction with epoxy groups of the epoxy resin, nano boron nitride is organically combined with the epoxy resin under the bridging action of polyarylamide, covalent bonds formed between a large number of amino groups on the surface and the epoxy resin in the curing process, and the epoxy resin can be cured to form the epoxy resin. The interface thermal resistance of the filler and the epoxy resin is reduced, the superhigh resistivity of the nano boron nitride, the reduction of agglomeration and the modification of the filler enable the polyarylamide modified boron nitride-epoxy resin composite material to show excellent thermal conductivity.

The invention belongs to the field of graphene preparation, and discloses a graphene cement additive and a preparation method thereof, and a graphene-cement composite material and a preparation method thereof. The preparation method comprises the following steps: preparing a stripping agent solution from pure water, a cholate anionic surfactant and a nonionic surfactant, then adding a graphite raw material, and fully stirring and mixing to obtain a graphite pre-stripping dispersion liquid; performing auxiliary stripping dispersion on the graphite pre-stripping dispersion liquid through water bath ultrasonic to obtain a graphene mixed dispersion system: centrifuging the graphene mixed dispersion system, taking an upper-layer solution for dialysis, and removing unstripped particles or thick graphite flakes to obtain the graphene cement additive. According to the graphene cement additive, pure water is used as a stripping agent, the graphene cement additive is directly obtained by adding a small amount of surfactant and liquid phase stripping, the graphene cement additive is non-toxic and harmless, the dispersity of obtained graphene is good, and after the graphene cement additive is blended into cement, the compressive strength of the cement is improved by 20% or above.

The invention belongs to the technical field of metal oxides, and particularly relates to a preparation method of a high-oxygen-storage cerium-zirconium solid solution. The preparation method comprises the following steps: adding zircon salt, cerium salt and doped metal salt into water, stirring and preserving heat to prepare a salt solution; sequentially adding a dispersing agent and a precipitating agent into the salt solution, uniformly mixing, and precipitating to obtain turbid liquid; and sequentially carrying out aging and solid-liquid separation on the turbid liquid, and washing and roasting the obtained precipitate to prepare the high-oxygen-storage cerium-zirconium solid solution. By selecting the new precipitator and dispersant, the problem of insufficient oxygen storage capacity of the cerium-zirconium solid solution in the existing cerium-zirconium solid solution preparation method is improved, and the prepared high-oxygen-storage cerium-zirconium solid solution has good high-temperature sintering resistance.

The invention discloses a preparation method of polylactic acid fibers for medical and sanitary materials, and relates to the technical field of polylactic acid fibers. Nano-crystalline cellulose, nano-graphite particles and polylactic acid are blended and crosslinked, the mechanical property of a matrix is enhanced, the antibacterial property is achieved, fibers are prepared through spinning, supercritical carbon dioxide treatment is conducted for the first time, the nano-graphite particles can play a role of a nucleating agent, polylactic acid is promoted to form fine and uniform crystals, and the mechanical property of the matrix is improved. Carbon dioxide is effectively wrapped in the foaming process, a micropore structure is formed in the fiber, the mechanical property of a matrix is enhanced, then secondary supercritical carbon dioxide treatment is conducted, the nano-silver is loaded into the matrix through supercritical fluid, the antibacterial property and the mechanical property are further improved, then the nano-silver is soaked in a silicate solution, dehydration is conducted, and the nano-silver fiber is obtained. A silica gel layer is formed on the surface of the fiber, so that the mechanical property and the antibacterial property of a matrix are enhanced.

The utility model discloses super-strong steel chemical degreasing powder drying equipment, and relates to the technical field of drying equipment. The device comprises a drying assembly, and an inner cavity of the drying assembly is fixedly connected with a mixing assembly. The heating blocks embedded in the inner wall of the drying box are distributed in an annular array mode, oil removing powder in the drying box can be heated in a full-surrounding mode, compared with traditional bottom or single-side heating, the uniformity of a temperature field in the box is remarkably improved, and the problem of component decomposition or low-temperature caking caused by local overheating is solved; when the planetary gear stirring piece drives the auxiliary stirring rod to revolve around the first transmission shaft, rotation is achieved through meshing of the driven gear and the driving gear ring, and a three-dimensional stirring track of revolution and rotation is formed; the up-down reciprocating piece pushes the main stirring rod to do periodic up-down motion through the cam, so that materials are subjected to transverse shearing mixing and longitudinal stirring in the drying process, the material accumulation dead angle is effectively broken, and the heat exchange efficiency is improved.

The invention relates to an efficient heat shrink tube preparation method and equipment thereof. FEP granules and modified CaSi2 are fed into an extruder to be extruded, and an FEP pipe is obtained; placing the FEP pipe in an expansion box, taking out the FEP pipe after the pressure in the FEP pipe and the pressure in the expansion box reach expansion pressure and are stabilized for a period of time and the pressure and the temperature in the expansion box and the FEP pipe are reduced to normal pressure and low-temperature oil temperature, and respectively washing the inside and the outside of the FEP pipe with water until the product meets the use requirement; the modified CaSi2 is prepared by the following steps: reacting CaSi2 powder, DMF (Dimethyl Formamide), isocyanatopropyltriethoxysilane, 4-hydroxyphenylboronic acid pinacol ester, lanthanum 5-hydroxyisophthalate, organic tin and methylbenzene, washing, carrying out suction filtration, and drying, thereby obtaining the modified CaSi2. The lanthanum 5-hydroxyisophthalate disclosed by the invention is prepared from 5-hydroxyisophthalic acid and lanthanum nitrate; the heat-shrinkable tube prepared by the invention has a relatively high heat shrinkage ratio.

The invention discloses a color paste mixing device and a mixing process, comprising a mixing cylinder, a ring sleeve, a main core body, a fixed ring, and a slip ring. The ring sleeve is inserted into the main core body, the main core body comprises a convex body 1 located at the top and a convex body 2 at the lower end of the convex body, the lower end of the ring sleeve is provided with a ring sleeve hole 2, a gap is formed between the inner wall of the ring sleeve hole 2 and the outer wall of the convex body 2, the upper end of the ring sleeve is provided with a ring sleeve hole 1, the ring sleeve hole 1 is connected with the ring sleeve hole 2 up and down; the convex body 1 is installed with a flow guide component, the fixed ring is provided with a through hole 3, the through hole 3 is connected with the top of the ring sleeve hole 1, the convex body 1 is installed with a rotating sleeve, the rotating sleeve can rotate along its own axis, the slip ring is inserted into the fixed ring and can move up and down along the inner wall of the fixed ring, the inner wall of the slip ring is installed with a support rod, the support rod is axially arranged along the radial direction of the slip ring, and the bottom position of the rotating sleeve can be lower than the top position of the support rod. The invention provides a color paste mixing device and a mixing process, the iron oxide powder is more dispersed before mixing with the color paste solvent, thereby improving the mixing efficiency.

The invention relates to the field of shoe materials, and particularly discloses a TPU (thermoplastic polyurethane) foaming material recycled from leftover materials of shoe materials and a preparation process of the TPU foaming material. The TPU foaming material recycled from the shoe material leftover materials is prepared from the shoe material leftover materials, a recycling treatment agent, TPU particles, modified mica powder, a cross-linking agent, an antibacterial agent and an antioxidant. Wherein the preparation raw materials of the modified mica powder comprise ureido silane, di (triethanolamine) diisopropyl titanate and mica powder, and the mica powder is modified through the ureido silane and the di (triethanolamine) diisopropyl titanate, so that the mica powder is uniformly dispersed in a polyurethane matrix, the agglomeration phenomenon is reduced, and the wear resistance of the material is improved. And moreover, the shoe material leftover materials are recycled for secondary utilization, so that the production cost is effectively reduced.

The invention discloses special model wax for a high-temperature alloy and a preparation method of the special model wax. The special model wax comprises the following raw material components in parts by weight: 15-45 parts of paraffin, 5-25 parts of a crystallization accelerant, 20-50 parts of tackifying resin, 1-5 parts of an auxiliary stabilizer, 1-3 parts of a flame retardant, 5-8 parts of filler and 1-3 parts of polyethylene wax micro powder. The model wax is prepared by mixing the raw material components. The filler is selected from at least one of ultra-high molecular weight polypropylene, nylon, polyurethane, high molecular polystyrene, graphene oxide, fluorinated graphene oxide and flexible phosphate modified boron nitride. The prepared model wax has the advantages of being good in fluidity, high in bending strength, small in linear shrinkage rate and thermal expansion coefficient and good in size stability, the preparation technology is simple, and the cost is low, so that the model wax special for the high-temperature alloy has wide market prospects, and the requirements of the current market are met.

The invention relates to the technical field of magnesium ion battery electrode materials, and discloses a silicate positive electrode material of which the chemical formula is MgNi < x > Mn < 1-x > SiO4, x < = 1; a preparation method of a silicate positive electrode material comprises the following steps: S1, ball-milling and mixing a magnesium source, a nickel source, a manganese source, a silicon source and a fluxing agent according to a certain proportion to obtain a Ni-doped precursor; s2, drying the Ni-doped precursor prepared in the step S1; s3, in a protective atmosphere, pre-sintering the Ni-doped precursor subjected to drying treatment in the step S2, and carrying out heat preservation at 300-400 DEG C for 2-3 hours; and heating to 800-1000 DEG C, continuously preserving heat for 6-8 hours, cooling to room temperature, washing and drying to obtain the Ni-doped silicate positive electrode material with the chemical formula of MgNi < x > Mn < 1-x > SiO4, the material is applied to magnesium ion batteries. According to the technical scheme, through doping of nickel, the problems that when an existing MgMnSiO4 material serves as the positive electrode of the magnesium ion battery, the agglomeration phenomenon is serious, the conductivity is poor, and structural distortion and poor cycle performance are caused by manganese ions can be effectively solved.

The invention relates to the technical field of silicone rubber, in particular to protective wear-resistant long-life silicone rubber and a preparation method thereof. The silicone rubber comprises the following components in parts by weight: 95-105 parts of base rubber, 30-50 parts of fumed silica, 3-5 parts of hydroxyl silicone oil, 30-50 parts of aluminum hydroxide, 20-40 parts of a flame retardant, 10-20 parts of composite graphene, 2-8 parts of a silane coupling agent and 0.6-2.2 parts of a vulcanizing agent. The silicone rubber is prepared by taking raw methyl vinyl silicone rubber as a base material, taking fumed silica and composite graphene as reinforcing fillers, taking aluminum hydroxide and a flame retardant as flame-retardant fillers and taking hydroxyl silicone oil as a structural control agent and adding a silane coupling agent and a vulcanizing agent. The silicone rubber prepared by the invention has excellent flame retardant property, wear resistance and mechanical property, and also has aging resistance, so that the service life of the silicone rubber is prolonged.

The invention discloses a method for removing silicon in ardealite, which comprises the following steps of: crushing, screening, pickling and centrifugally filtering the ardealite, drying the pretreated ardealite at low temperature, mixing the dried ardealite with an alkaline extracting solution, and stirring and heating, and after cooling to room temperature, adjusting the pH value of the solution, and adding the aminated composite aerogel to realize desorption of silicon. Chopped electrostatic spinning fibers are attached to pores of the aminated composite aerogel and can serve as a supplementary adsorption material of the aerogel, and the adsorption performance is improved through cooperation of the chopped electrostatic spinning fibers and the aminated composite aerogel. According to the preparation method, the aerogel can be recycled by utilizing the magnetism of the aerogel, and the aminated composite aerogel can be recycled after being soaked in the alkali liquor and ultrasonically cleaned, so that the preparation method has the characteristic of environmental friendliness.

The invention relates to the technical field of high polymer materials, and discloses composite non-woven cloth based on polyethylene and a preparation method thereof.The composite non-woven cloth is prepared from ultra-high molecular weight polyethylene fibers as a base material through hot pressing with an adhesive, and the adhesive is prepared from epoxy resin, a functional composite additive, a defoaming agent and a curing agent; the functional composite additive is added into the adhesive, so that the density and cohesion of the adhesive can be effectively enhanced, the binding force of the adhesive and ultra-high molecular weight polyethylene fibers is improved, the impact resistance of the composite non-woven fabric is further improved, and the situation that the service life of the non-woven fabric is shortened due to tearing caused by debonding and slippage of the fibers when the composite non-woven fabric is impacted is avoided; meanwhile, the heat resistance and the flame retardance of the adhesive can be improved, so that the safety and the reliability of the composite non-woven cloth are improved, the application range of the composite non-woven cloth is widened, and the application prospect is wide.