478 results about "ALUMINUM PHOSPHATE" patented technology

The invention belongs to the field of material protection, and particularly relates to a method for improving spraying efficiency and adhesive force by adding a binder in the plasma spraying process. The binder comprises one or more of bentonite, silicon dioxide, borax, sodium silicate and aluminum phosphate. The device has the function of quickly melting spraying particles at high temperature and adhering the spraying particles to a spraying substrate, so that the powder spraying efficiency is improved, and the production efficiency is improved. The method comprises the following steps: firstly, carrying out sand blasting treatment on a spraying base material, removing dust and impurities on the surface to enable the roughness to reach 8-10 microns, weighing, and measuring the surface area to be sprayed; and then weighing the binder and putting the binder into a drying oven to be dried at 120 DEG C; the method comprises the following steps: uniformly mixing a binder and an analytically pure nano spraying material according to a certain proportion, and pouring into a plasma spraying raw material tank; and spraying is carried out at the position with the voltage of 30-50 V, the current of 300-600 A, the air pressure of 8 Mpa and the distance of 80-120 mm. The spraying time is 3-5 min, and after spraying is completed, the powder spraying amount is calculated by weighing the mass difference of the base material before and after the base material is weighed. And by adding the binder, the powdering rate is increased from 30.79% to 51.24%, the consumption of spraying materials is greatly reduced, and the working efficiency is improved.

The invention provides a trichoderma maple fungicide, a microbial granular fertilizer as well as a preparation method and application of the trichoderma maple fungicide and the microbial granular fertilizer, and relates to the field of microorganisms. The acer rubrum fungicide contains acer rubrum RA with the preservation number of CGMCC No.35889. The acer rubrum fungicide has the capability of decomposing inorganic phosphorus, is wide in phosphorus dissolving range, can decompose tricalcium phosphate, ferric phosphate and aluminum phosphate, and particularly still has the very strong capability of decomposing the inorganic phosphorus under the low-temperature condition; the strain has the capability of producing siderophore and IAA at low temperature; the strain has an inhibition effect on various pathogenic bacteria causing field crop diseases. The microbial granular fertilizer provided by the invention contains various biostimulant substances, can promote crop growth, improve plant stress resistance and improve plant resistance to plant diseases and insect pests, and field tests prove that the microbial granular fertilizer can significantly promote crop growth and improve crop yield.

The invention provides a moniliella malayi and a fungicide and application thereof, and relates to the field of microorganisms. The acer rubrum is specifically acer rubrum RA, and the preservation number of the acer rubrum RA is CGMCC (China General Microbiological Culture Collection Center) No.35889. The acer rubrum RA can be used for preparing the acer rubrum. The strain has the capability of decomposing inorganic phosphorus, is wide in phosphorus-dissolving range, can decompose tricalcium phosphate, iron phosphate and aluminum phosphate, and particularly still has very strong capability of decomposing inorganic phosphorus under a low-temperature condition; the strain has the capability of producing siderophore and IAA at low temperature; the strain has an inhibition effect on various pathogenic bacteria causing field crop diseases, and can inhibit diseases such as corn root rot, sorghum leaf spot or wheat root rot; the strain can be colonized in a soil environment of 5-40 DEG C, a microbial inoculum prepared from the strain can promote crop growth, the crop yield is remarkably improved, and high yield can be achieved even if the usage amount of phosphate fertilizer is reduced.

The present invention relates to the field of the preparation of polyurethane elastic fibers, and relates to a preparation method for a bio-based polyurethane elastic fiber, comprising: preparing polyether polyol from sucrose, glycerol, dimethylamine and propylene oxide; adding a solvent, i.e., N,N-dimethylacetamide, and polyether polyol and polyisocyanate into a reaction tank, and adding p-Toluenesulfonyl semicarbazide and aluminum methylenebis(2,4-di-tert-butylphenoxy) phosphate to prepare a spinning solution; and subjecting the spinning solution to spinning and oil application by means of dry spinning technology to obtain the bio-based polyurethane elastic fiber. The present invention ensures that the properties of polyurethane elastic fibers do not deteriorate or are partially enhanced, while the cost and performance advantages are achieved.

The invention provides a vanadium aluminum phosphate electrode material and a preparation method thereof. In target product components, an aluminum source, a vanadium source and a phosphorus source are respectively aluminum nitrate or other aluminum sources, vanadium pentoxide or ammonium vanadate, ammonium dihydrogen phosphate, phosphoric acid or other phosphorus sources, and a nitrogen source of nitrogen-doped carbon is from polyvinylpyrrolidone or other nitrogen sources of a gel component; the carbon source is selected from polyvinyl alcohol and glycerol. By adopting an exogenous plasticizing physical crosslinking sol-gel method, in the whole reaction system, uniform distribution of reaction ions and intermediates is maintained, and finally, gel is networked, so that the problem of capacity fading caused by an unstable structure of an existing aluminum ion battery positive electrode material in a circulating process is solved, and the service life of the aluminum ion battery positive electrode material is prolonged. And the problems of high reaction system selection requirement, long preparation period and complex process of the existing endogenous covalent polycondensation sol-gel method for preparing the electrode material are solved.

The present invention discloses a method for detecting MPL in a sample and its related applications, relating to the field of biological detection. The adsorbent includes aluminum phosphate or a product obtained by mixing aluminum hydroxide and a phosphate solution, which can effectively adsorb free MPL in the sample, thereby achieving effective separation of free MPL and MPL bound to liposomes in the sample. By detecting the difference in MPL content in the sample before and after adsorption, the proportion of free MPL and MPL bound to liposomes in the sample can be determined. This method has the advantages of being easy to implement, low cost, and high efficiency. It does not require expensive reagents and instruments, and can quickly and accurately calculate the encapsulation rate of MPL in liposomes, providing a new approach for quality control of adjuvants or vaccines containing MPL.

The invention relates to the technical field of battery materials, and discloses a composite solid electrolyte diaphragm as well as a preparation method and application thereof. The composite solid electrolyte diaphragm comprises a base membrane and a solid electrolyte coating arranged on at least one surface of the base membrane, the solid electrolyte coating comprises an electrolyte I and an electrolyte II; the electrolyte I is lithium titanium aluminum phosphate and lithium lanthanum zirconium tantalum oxide; and the electrolyte II is a compound of lithium bis (oxalate) borate and acetamide in a molar ratio of 1: (6.5-7.5). The composite solid electrolyte diaphragm provided by the invention can realize relatively high ionic conductivity, and when the composite solid electrolyte diaphragm is used in a lithium ion battery, the battery can have relatively low internal resistance.

The invention discloses a silicon mullite brick with high connection stability and a production process thereof, and belongs to the technical field of silicon mullite brick preparation. Through the composite formula design of the multi-graded silicon carbide aggregate and the in-situ generated mullite precursor and in combination with a microwave-air pressure coupling sintering process, the optimization of the material structure is realized. Wherein the silicon carbide aggregate is subjected to surface etching to form a microporous structure, and the microporous structure and the aluminum phosphate nanofiber reinforced matrix form a three-dimensional interlocking network; dual-band microwave alternate radiation and staged air pressure dynamic regulation and control are adopted, substance diffusion is promoted at low temperature, and meanwhile pore formation is inhibited at high temperature; and in the gradient cooling stage, the grain boundary stability is enhanced through controllable oxygen partial pressure and rare earth steam treatment. The process effectively improves the interface bonding strength and thermal shock resistance of the silicon mullite brick, reduces the sintering energy consumption, and is suitable for refractory material preparation of high-temperature equipment such as a cement kiln and an incinerator.

The invention relates to the technical field of concrete, and particularly discloses low-temperature-resistant self-repairing waterproof concrete for water conservancy and a preparation method of the low-temperature-resistant self-repairing waterproof concrete. The water conservancy low-temperature-resistant self-repairing waterproof concrete is specifically prepared from the following components in parts by weight: 70 to 80 parts of cement, 10 to 20 parts of fly ash, 8 to 12 parts of silica fume, 2.5 to 3.5 parts of a reinforcing material, 0.2 to 0.4 part of a crystallization inducer, 1.5 to 2.5 parts of a repairing agent and 20 to 40 parts of water, the reinforcing material is formed by mixing nano silica sol, bentonite, quartz sand and triethanolamine; the crystallization inducer is formed by mixing sodium silicate and aluminum hypophosphite; the repairing agent is obtained by loading calcium ions on an amino silane modified zeolite material and then mixing with a bacillus pasteurii bacterial solution. By utilizing the technical scheme provided by the invention, the prepared concrete has excellent mechanical properties, water resistance, impermeability, freezing resistance, crack resistance and good durability.

The invention discloses a high-reflection magnesium phosphate / aluminum phosphate radiation refrigeration material and a preparation method thereof, and relates to the technical field of radiation refrigeration materials. The preparation method of the high-reflection magnesium phosphate / aluminum phosphate radiation refrigeration material comprises the following steps: (1) mixing aluminum sec-butoxide and deionized water to prepare a solution A; mgCl2. 6H2O and deionized water are mixed to prepare a solution B; mixing the solution A and the solution B to obtain a solution C; (2) adding 3-sulfopropyl tetradecyl dimethyl betaine into the solution C to obtain a solution D; (3) stirring sodium pyrophosphate and deionized water into a solution E; mixing the solution E and the solution D to obtain a solution F; and (4) reacting the solution F at 150-180 DEG C, cooling, freeze-drying and grinding to obtain H, heating H to 300-400 DEG C at the rate of 3-4 DEG C / min, then heating H to 800-1300 DEG C at the rate of 7-10 DEG C / min, and keeping the temperature for 1-3 hours to obtain the product. The material prepared by the invention has excellent sunlight reflectivity and excellent mid-infrared emissivity, and shows excellent performance in the field of radiation refrigeration.

The invention belongs to the technical field of flame retardance, and particularly discloses a production process of a polyester efficient flame retardant and application of the polyester efficient flame retardant to a thermal insulation material. Comprising the following steps: (1) dispersing montmorillonite in deionized water, adding PEG-400, octadecyl trimethyl ammonium chloride and aluminum metaphosphate, stirring at the temperature of 50-60 DEG C, and drying to obtain pretreated montmorillonite; (2) uniformly mixing composite glass fibers, magnesium hydroxide and silicon dioxide, dispersing the mixture into an ethanol solution, adding the pretreated montmorillonite in the step (1), and performing ultrasonic treatment, filtration and drying to obtain a mixture; and (3) spraying an epoxy resin solution on the surface of the mixture obtained in the step (2), and grinding to obtain the high-efficiency polyester flame retardant. According to the flame-retardant polyester material disclosed by the invention, various components are synergistically matched, a compact carbon layer is formed during combustion, heat is prevented from being transferred to a polyester matrix, a flame-retardant effect is achieved, and the inorganic components, the epoxy resin coating and the like can change the mechanical properties of the polyester material.

The invention discloses a preparation method of an aluminum hydroxide adjuvant capable of regulating and controlling pH in stages, and aims to solve the problems of non-uniform particle size, unstable adsorption and large inter-batch difference in the traditional process. According to the method, phosphate radical modified hydroxyapatite nanocrystal seeds are taken as an induction template, and three-stage accurate pH regulation and control are carried out: a pre-crystal seed stage activates crystal seed active sites, a main crystallization stage guides directional growth of aluminum hydroxide, and an aluminum phosphate coating layer is formed in a stabilization stage. Compared with a traditional process, the finished product yield is improved, energy consumption is reduced, and the method is suitable for vaccine industrial production.

The invention provides an anti-oxidation coating for an anode carbon block and a preparation method of the anti-oxidation coating, and belongs to the technical field of anode anti-oxidation coatings. Comprising an inner-layer coating and an outer-layer coating, the inner coating is prepared from the following components in parts by weight: 45 to 55 parts of aluminum oxide, 3 to 4 parts of silica sol, 4 to 5 parts of aluminum phosphate, 0.5 to 1.0 part of boron nitride nanosheet, 0.5 to 1.0 part of CeO2, 3 to 5 parts of TiB2 graphene and 1.2 to 1.5 parts of polyacrylic acid dispersing agent; the outer-layer coating comprises the following components in parts by weight: 10-15 parts of aluminum oxide, 6-9 parts of silicon carbide whiskers, 8-10 parts of aluminum calcium magnesium silicate glass powder, 1-2 parts of boron nitride nanosheets, 1-2 parts of Y2O3, 0.5-1.0 part of CeO2, 1.5-2.5 parts of aluminum phosphate and 2-3 parts of mullite fibers. The high-temperature stability and environmental protection property of the coating can be remarkably improved, meanwhile, the gradient structure design is introduced, conductivity and permeability resistance are both considered, and the pole changing period is prolonged.

The invention relates to the technical field of flame-retardant high polymer materials, in particular to a high-temperature-resistant and high-humidity-resistant flame-retardant polypropylene composite material and a preparation method thereof. The invention provides a high-temperature-resistant and high-humidity-resistant flame-retardant polypropylene composite material. The high-temperature-resistant and high-humidity-resistant flame-retardant polypropylene composite material consists of polypropylene, a mixed silane modified intumescent flame retardant, a flame-retardant aid NOR 116 and a compatilizer According to the invention, bis [3-(trimethoxysilyl) propyl] amine / triacetoxyvinyl silane is mixed to modify an intumescent flame retardant, which is composed of piperazine pyrophosphate as a main flame retardant and melamine polyphosphate, aluminum hypophosphite or aluminum diethylphosphinate as a secondary flame retardant; a plurality of active silicon hydroxyl sites after silane hydrolysis are mixed, and single flame retardants are connected together to form a macromolecular intumescent flame retardant, so that the modified intumescent flame retardant is still difficult to migrate or separate out from a polypropylene matrix even under high-temperature and high-humidity conditions, and the weather resistance of flame-retardant polypropylene is greatly improved.

The application relates to the field of fireproof bricks, and discloses a baking-free fireproof brick and a preparation method thereof. The baking-free fireproof brick comprises iron tailings, cement, fly ash, a functional additive, fine aggregate, quartz sand, a chromium aluminum phosphate binder, a water reducing agent and water. The functional additive is prepared by using aluminum chloride hexahydrate and alkaline silica sol as raw materials, ammonium molybdate tetrahydrate as a catalyst, growing mullite whiskers on the surface of silicon carbide fibers through vacuum impregnation and heat treatment, modifying the prepared composite silicon carbide fibers through 3-(methacryloxy) propyl trimethoxysilane, and then copolymerizing the modified composite silicon carbide fibers with acrylic acid and 4-hydroxybutyl vinyl ether. The chromium aluminum phosphate binder is prepared by using aluminum hydroxide, phosphoric acid and chromium trioxide as raw materials and calcium hydroxide as a curing agent. The baking-free fireproof brick prepared through the synergistic effect of the components has high compressive strength and bending strength, small water absorption and good baking-free fireproof and heat insulation performance.

The invention discloses a wide-spectrum emission lanthanum-doped aluminum phosphate radiation refrigeration material and a preparation method thereof.The lanthanum-doped aluminum phosphate is synthesized by modifying aluminum phosphate with the lanthanum element through a hydrothermal method, the preparation process is simple, the reaction period is short, raw materials are common, the cost is low, controllability is high, a large number of target products can be prepared, and industrial production is easy to achieve; the lanthanum-doped synthesized aluminum phosphate powder has high sunlight reflectivity and high and medium infrared radiance at the same time, and has excellent refrigeration performance; according to the invention, the lanthanum-doped aluminum phosphate powder is dissolved in the tree trunk whitening agent and is applied to the surfaces of trees so as to reduce the temperature of the tree trunks, and the lanthanum-doped aluminum phosphate powder can play a certain role in inhibiting fire disasters when being applied to the trees in forests.

The invention is suitable for the technical field of MCA, and provides an MCA / PA6 flame-retardant composite material and a preparation method thereof. Comprising the following components in parts by weight: 50-60 parts of MCA, 15-20 parts of PA6, 15-25 parts of long glass fiber, 3-8 parts of metal hydroxide, 0.5-1.5 parts of titanium dioxide, 0.3-0.6 part of an antioxidant, 1-2 parts of nano silicon dioxide, 1-3 parts of zinc molybdate, 2-5 parts of aluminum hypophosphite, 1-2 parts of silicone resin, 0.5-1 part of carbodiimide and 5-8 parts of a toughening agent. The MCA / PA6 flame-retardant composite material disclosed by the invention combines the flame-retardant property of MCA and the excellent physical property of PA6, so that the flame-retardant property of the material is remarkably improved, and meanwhile, the original characteristics of light weight, good toughness, chemical resistance, good durability and the like of PA6 are maintained. By adding the long glass fiber, the metal hydroxide, the titanium dioxide, the antioxidant, the nano silicon dioxide, the zinc molybdate, the aluminum hypophosphite, the silicone resin, the carbodiimide, the flexibilizer and other components, the strength, the heat resistance and the flame retardant effect of the composite material are further enhanced.

The present invention discloses a PBT / recycled PET composite material, comprising the following components: 25-70 parts of PBT resin; 5-25 parts of recycled PET resin; 15-35 parts of alkali-free glass fiber; 10-25 parts of diethyl aluminum hypophosphite; 1-2 parts of melamine polyphosphate; 0.5-1 parts of halogen-free polyaryl phosphate; 0.3-0.5 parts of PA10T powder; and 0-1 parts of other functional processing aids; wherein the average particle size of the PA10T powder is ≤10 μm. The PBT / recycled PET composite material of the present invention, by selecting a specific flame retardant system and simultaneously adding a certain amount of PA10T, solves the mold sticking and bursting problems caused by the addition of recycled PET resin in the prior art during the material processing and molding process, effectively improves the heat resistance and mechanical properties of the material, and obtains a halogen-free flame-retardant PBT / recycled PET composite material that can meet the requirements of high-heat-resistant products, allowing the effective reuse of recycled PET. This is of great significance in the research of realizing the high-value utilization of waste plastics.

The invention discloses an aluminum anodic oxidation electrolyte for improving the adhesion density of an electrode foil oxidation film, and relates to the technical field of anodic oxidation, the electrolyte comprises 3%-10% of ammonium dihydrogen phosphate, 0.5%-3% of sulfuric acid, 0.01%-0.2% of nano titanium dioxide or nano aluminum oxide, 0.05%-0.5% of an organic buffer agent, and the balance deionized water; the organic buffering agent is used for stabilizing the pH value in a range of 4.5-6.0; nano titanium dioxide or nano aluminum oxide is used as an oxidation film nucleation center to promote directional crystallization of gamma '-Al2O3; the sulfuric acid component improves the conductivity of the electrolyte; ammonium dihydrogen phosphate generates an aluminum phosphate barrier layer on the surface layer of the oxidation film to enhance the waterproof performance of the film layer; according to the electrolyte, the adhesion density and crystallinity of an oxidation film can be remarkably improved, the uniformity and waterproof performance of a film layer are improved, the specific volume stability and the formation efficiency are improved, and the electrolyte is suitable for continuous production of the high-performance aluminum electrolytic capacitor.

The invention belongs to the technical field of aluminum hypophosphite preparation, and particularly relates to a method for targeted optimization of the particle size of an aluminum hypophosphite flame retardant by using a crystal modifier, and the method comprises the following steps: S1, adding sodium hypophosphite into deionized water, and dissolving to prepare a 1.5 mol / L sodium hypophosphite solution; s2, aluminum sulfate octadecahydrate is added into deionized water to be dissolved, and a 0.3 mol / L aluminum sulfate solution is prepared; and S3, mixing the sodium hypophosphite solution and the aluminum sulfate solution, then adding an aqueous solution of an acid regulator, controlling the pH value of the solution through the acid regulator, then adding a crystal modifier, oscillating and uniformly mixing, then putting into a drying oven for reaction, and after the reaction is finished, centrifuging and washing to obtain an aluminum hypophosphite product.

The invention relates to the technical field of preparation of refractory materials, in particular to an Al-coated AlN coated structure composite corundum-based refractory material for an RH refining furnace, which is prepared by the following steps: by taking magnesium aluminate spinel as an aggregate and a mixture of functionalized alumina powder, aluminum nitride powder and aluminum powder as a matrix, adding a modified binding agent into the mixture of the aggregate and the matrix to obtain a raw material mixture; and then placing in a nitrogen atmosphere and carrying out gradient roasting. Functionalized alumina powder and a modified binding agent are added into the refractory material, the functionalized alumina powder is composed of alumina in the most inner layer, magnesium oxide in the secondary outer layer and silicon dioxide in the outermost layer, the modified binding agent is a blend of magnesium aluminate sol and aluminum phosphate, and through the synergistic effect of the functional alumina powder and the modified binding agent, the refractory material can be effectively improved. And the mechanical property, the slag iron permeation erosion resistance and the thermal shock stability of the refractory material are improved.

The invention belongs to the technical field of tempered glass preparation, and particularly relates to impact-resistant self-cleaning tempered glass and a preparation method thereof. Epoxy acrylate, a repairing agent, an oil-phase solvent, a photoinitiator, polyvinyl alcohol and an acrylamide sulfonic acid derivative are adopted as raw materials, a self-repairing microcapsule is obtained through mixing, emulsification and UV polymerization, a hydrophobic modified microcapsule is obtained through modification of aluminum phosphate and a low-surface-energy substance, the hydrophobic modified microcapsule is mixed with water-borne epoxy resin to obtain a coating mixed solution, the coating mixed solution is applied to the surface of glass, and the surface of the glass is coated with the self-repairing microcapsule. And drying and cooling to obtain the toughened glass with the coating. The toughened glass has good impact resistance, self-repairing performance and self-cleaning performance.

The invention provides a hot-melt epoxy resin composition, a prepreg, a fiber reinforced composite material and a preparation method, the hot-melt epoxy resin composition comprises 60-70 parts of liquid epoxy resin, 30-40 parts of solid epoxy resin, 10-20 parts of a flame retardant, 5-15 parts of a flexibilizer, 5-15 parts of a curing agent, and 0.5-1.5 parts of an impregnating compound; the prepreg comprises the following components in parts by weight: 30-45 parts of a hot-melt epoxy resin composition and 55-70 parts of a reinforcing material, the fiber-reinforced composite material is obtained by laminating prepregs in a predetermined form and pressing / heating to cure the resin. The carboxyl-terminated nitrile rubber and the polyethersulfone are mixed for toughening, so that the viscosity of a resin matrix in the curing process is effectively ensured while toughening is performed, serious gummosis of the resin matrix is prevented, and the anti-stripping strength of the composite material is improved; the flame retardant and smoke suppression performance of the composite material can meet the requirements of 60s vertical combustion, 30s 45-degree combustion and smoke density test of an aviation system, so that the system realizes halogen-free flame retardance, and the application range of the material is wider.

The invention provides a flame-retardant ABS (Acrylonitrile Butadiene Styrene) composition as well as a preparation method and application thereof, and the flame-retardant ABS composition comprises the following components in parts by weight: 66-80 parts of ABS resin; 13-21 parts of a brominated flame retardant; 4-11 parts of an aluminum phosphate flame retardant; and 0.5 to 4 parts of oxide. According to the flame-retardant ABS composition disclosed by the invention, the flame-retardant ABS composition can achieve an excellent flame-retardant effect under the condition that the addition amount of the flame retardant is relatively low, and the light transmittance is relatively high.

The invention discloses a preparation method of a lithium aluminum titanium phosphate solid electrolyte nano powder material, which comprises the following steps: S1, weighing a lithium source, an aluminum source, a titanium source and a phosphorus source, and preparing a sol precursor; s2, performing microwave treatment to obtain a gelatinous intermediate; s3, carrying out annealing treatment after grinding to obtain nano titanium aluminum lithium phosphate powder; s4, placing the substrate in a plasma enhanced atomic layer deposition reaction cavity, vacuumizing, and introducing plasma activation gas; alternately pulse trimethylaluminum and titanium tetrachloride precursors, and depositing to obtain a gradient oxide intermediate layer; s5, introducing oxygen plasma to oxidize the residual precursor to form a gradient oxide coating layer; and S6, carrying out annealing treatment to obtain the lithium titanium aluminum phosphate solid electrolyte nano-powder material. According to the preparation method disclosed by the invention, the side reaction of the LATP powder and lithium metal is effectively inhibited, the interface stability and the ionic conductivity are improved, and the high-performance requirement of an all-solid-state lithium ion battery on a solid electrolyte material can be met.

The invention provides a high-wear-resistance halogen-free low-smoke flame-retardant polyolefin cable material and a preparation method and application thereof, and the high-wear-resistance halogen-free low-smoke flame-retardant polyolefin cable material comprises the following raw material components in parts by weight: 80-120 parts of a polyolefin base material; the composite material comprises the following components in parts by weight: 5-10 parts of a hydrogenated styrene-butadiene block copolymer (SEBS), 10-20 parts of a radiation grafting compatilizer, 1.5-3 parts of a self-made wear-resistant agent, 1-3 parts of silicone master batches and 60-80 parts of an inorganic flame retardant comprising magnesium hydroxide or / and aluminum hydroxide. The composite material is prepared from the following components in parts by weight: 3 to 5 parts of hexaphenoxy cyclotriphosphazene, 5 to 10 parts of aluminum diethylhypophosphite, 10 to 20 parts of melamine cyanurate (MCA), 3 to 6 parts of composite antioxidant and 1.0 to 2.5 parts of crosslinking sensitizer powder. 3-5 parts of a processing aid and 4-6 parts of environment-friendly orange master batch. The cable material has the advantages that the cable material is halogen-free, low-smoke and flame-retardant, the shore hardness is 85A, the tensile strength and the elongation at break retention rate after short-term aging are greater than or equal to 80%, the elongation at break after long-term aging is greater than or equal to 50% and the like, and other properties meet the T / CAS356-2019 standard requirements.

The invention relates to the technical field of positive electrode material precursors, in particular to a method for preparing battery-grade iron phosphate by taking titanium dioxide waste acid as a raw material and application of the battery-grade iron phosphate. Hydrolysis waste acid in the titanium dioxide industry is selected as the raw material, ammonia gas is used as a pH regulator, and phosphorus salt and hydrogen peroxide are used as precipitants; the solubility product constants of aluminum phosphate and titanium phosphate are small, Al < 3 + > and Ti < 4 + > in the hydrolysis waste acid are precipitated by adopting soluble phosphate and then are filtered and removed, iron ammonium phosphate is precipitated by virtue of phosphorus salt and is fully washed, and the content of metal impurity ions can be reduced to be less than 100ppm; according to the method, ferrous sulfate is subjected to fractional precipitation, impurity removal, precipitation, washing and aging under different pH conditions, so that the use amount of alkaline substances is greatly reduced, and the problems of high liquid waste treatment cost and resource waste in the traditional titanium dioxide industry are solved.

The application discloses an aluminum phosphate hierarchical structure and a preparation method thereof, and relates to the technical field of aluminum phosphate materials, and comprises the following steps: S1, a glass substrate is cleaned to remove surface impurities; S2, aluminum lactate and phosphoric acid are used as raw materials, deionized water is used as a solvent, and citric acid, oxalic acid, ethylene glycol and polyethylene glycol are added as complexing agents to prepare an aluminum phosphate plating solution; S3, the plating solution is placed on the glass substrate by using a spin coating method; S4, self-assembly drying is performed; and S5, high-temperature heat treatment is performed. The application provides an aluminum phosphate hierarchical structure, and enriches the aluminum phosphate microstructure and a control method thereof. The method is used for preparing the aluminum phosphate material with the hierarchical structure through coordination chemistry and a special plating process, and the morphology of the micro-nano structure can be controlled through a formula and a process.

The invention discloses a surface modification method for a silicon-carbon composite material electrode, which belongs to the technical field of lithium ion battery negative electrode materials, and mainly comprises the following steps: modifying the surface of the silicon-carbon composite material electrode by magnetron sputtering; wherein the modification material comprises a metal material and / or a solid electrolyte material; the metal material is selected from Al, Cu or In; the solid electrolyte material is selected from titanium aluminum lithium phosphate or gallium-doped lithium lanthanum zirconium tantalum oxide. The method solves the problems of poor conductivity, unstable SEI film and volume effect of the silicon-carbon electrode, and after the prepared electrode is assembled into a battery, the performance of the battery is superior to that of an unmodified electrode, the battery is adaptive to a solid-state battery, and the electrode has industrialization potential and application value.

The invention provides a negative electrode current collector with high safety performance and a preparation method thereof. The negative electrode current collector comprises a copper foil base material and a safety coating coated on at least one surface of the copper foil base material, wherein the safety coating comprises lithium aluminum phosphate, a conductive agent and a binder. The lithium aluminum phosphate safety coating is constructed on the surface of the copper foil base material to form a protective layer with high mechanical strength and thermal stability, so that mechanical stress during needling can be effectively absorbed and dispersed, the formation of copper wedge is inhibited, the short-circuit probability is reduced, and the needling safety performance of the battery is remarkably improved; the lithium aluminum phosphate safe coating has excellent chemical stability, can promote formation of a stable and compact SEI film, effectively improves the stability of a negative electrode interface, and prolongs the cycle life of the battery; the doping of Al < 3 + > in the lithium aluminum phosphate can provide a transmission channel for lithium ions, and a three-dimensional conductive network formed by the conductive agent is combined, so that the interface impedance can be reduced, and the rate capability of the battery is improved.