2977 results about "Phosphoric Acid Esters" patented technology

The preparation method comprises the following steps: treating sepiolite serving as a raw material with 3-aminopropyltriethoxysilane to prepare aminated sepiolite, ultrasonically blending the aminated sepiolite and a modified filler, then treating with phytic acid to prepare a flame-retardant filler, melting bisphenol A polycarbonate, blending with the flame-retardant filler, and carrying out extrusion molding to obtain the flame-retardant fireproof plastic. When the flame-retardant fireproof plastic is combusted, the flame-retardant filler is subjected to evaporation of hot water molecules to cause structural expansion and form an isolation layer, meanwhile, evaporation of the water molecules can take away heat, released ammonia gas can reduce the content of smoke so as to achieve the flame-retardant effect, and generated inorganic acid and phosphate ester are dehydrated and carbonized, so that the flame-retardant fireproof plastic has a good flame-retardant effect. The carbon layer with large interlayer spacing is formed through cooperation with the isolation layer, an organic silicon structure is contained, Si-C can be formed, then the density of the carbon layer is increased, aluminum oxide and magnesium oxide can be formed after internal aluminum ions and magnesium ions are combusted at high temperature, then the flame retardance of the carbon layer is improved, and the flame-retardant and fireproof effects of the plastic are improved.

The invention provides a method for immobilizing phosphonic acid betaine and phosphonic acid on polystyrene, which comprises the following steps: taking quaternary ammonium cation containing glycidyl ether as a spacer arm, carrying out ring-opening reaction on phosphite ester and glycidyl ether connected with the side chain of polystyrene in the presence of an alkali reagent catalyst, grafting phosphonate on polystyrene, and then carrying out acid catalytic hydrolysis on phosphonate to obtain the phosphonic acid betaine and phosphonic acid immobilized on polystyrene. The phosphonic acid and the phosphonic acid group betaine are immobilized on the surface of the polystyrene. The effect of introducing phosphonic acid and phosphonic acid betaine on polystyrene is generated; the adsorbent can be used for adsorption, enrichment and separation of rare earth ions and heavy metal ions, and also has an anion exchange function.

The invention relates to a high-antistatic crude oil type polyester FDY spinning oil agent and a preparation method thereof, a composition of sodium lauryl polyoxyethylene ether sulfate and potassium lauryl phosphate is used as a main antistatic agent, an antistatic smoothing agent with sulfonated chitosan and PEG800 as key components is adopted, the antistatic smoothing agent and the main antistatic agent have a synergistic effect, and the antistatic property of the spinning oil agent is improved. The overall antistatic property of the oiling agent is enhanced. The preparation method comprises the following steps: pre-balancing the materials at 40-50 DEG C before charging; then, sequentially adding an antistatic smoothing agent, a penetrating agent, a bundling agent, a main antistatic agent and an anti-coking agent, and adding materials while stirring; and finally, controlling the temperature of the reaction kettle to be 40-50 DEG C and the stirring speed to be 500-700r / min, and reacting for 0.5-1.5 hours. The crude oil type polyester FDY oiling agent is excellent in antistatic property, and polyester FDY spinning can be carried out in a crude oil direct oiling mode at the ultrahigh spinning speed of 4000 m / min.

The invention provides a low-smoke halogen-free flame-retardant cable material and a preparation method thereof, and belongs to the field of cable materials. The low-smoke halogen-free flame-retardant cable material is prepared from the following chemical components: 32 to 40 parts of nitrile rubber, 22 to 27 parts of natural rubber, 8 to 12 parts of benzoxazole-siloxane copolymer containing phosphate dynamic bonds, 13 to 15 parts of core-shell-sheath three-stage structure flame retardant, 4 to 6 parts of hexaphenoxy cyclotriphosphazene modified carbon nanotubes, 2 to 3 parts of europium-doped mesoporous cerium dioxide and 3 to 4 parts of nano zinc oxide. The composite material is prepared from the following components in parts by weight: 3 to 4 parts of carbon nanotube grafted montmorillonite hybrid, 2 to 3 parts of lubricant, 0.8 to 1.2 parts of cross-linking agent, 0.3 to 0.4 part of accelerant, 0.4 to 0.6 part of dicumyl peroxide and 0.1 to 0.2 part of antioxidant. Unification of high flame retardance, low smoke, excellent mechanical property and processability of the cable material is realized.

The invention discloses a phosphate composite flame retardant and a preparation method thereof, and relates to the technical field of flame retardants. The phosphate ester composite flame retardant is prepared from phosphorus-nitrogen grafted and coated network-shaped silicon dioxide powder, a Co-MOF composite graphene oxide catalytic carrier and pentaerythritol phosphate ester, the phosphorus-nitrogen grafted coated network-shaped silicon dioxide powder is prepared from a network-shaped dispersion modifier, silicon dioxide, dopamine hydrochloride, phosphorus oxychloride and 4, 4-diaminodiphenyl methane, a Co-MOF composite graphene oxide catalytic carrier is filled with phosphorus-nitrogen grafted and coated network-shaped silicon dioxide powder and pentaerythritol phosphate, migration of components is effectively reduced, the thermal stability of a flame-retardant system is enhanced, meanwhile, the compatibility and dispersity in an epoxy resin matrix are improved, the phosphorus-nitrogen grafted and coated network-shaped silicon dioxide powder, the pentaerythritol phosphate and the phosphorus-nitrogen grafted and coated network-shaped silicon dioxide powder have a synergistic effect, and the flame-retardant effect is improved. A carbon residue layer after combustion is more compact and continuous, isolation and protection effects can be better played, and the flame retardant property is remarkably improved.

The invention relates to the technical field of surfactants, and discloses a preparation method of a modified polycarboxylate surfactant and application of the modified polycarboxylate surfactant in pesticide preparations. 3-hexene-1, 6-diamine and epoxy chloropropane are used as raw materials, 1, 6-tetraglycidylamine-3-hexene is obtained through ring-opening and ring-closing reactions, 1, 6-tetraglycidylamine-3-hexene is utilized twice, and the yield of the 1, 6-tetraglycidylamine-3-hexene is increased. The preparation method comprises the following steps: sequentially reacting 2, 3, 4, 6-tetraglycidylamine-3-hexene with sodium hydrogen sulfite and phosphoric acid to obtain tetrasulfonate hexene and tetraphosphate hexene, and copolymerizing the tetrasulfonate hexene and the tetraphosphate hexene with acrylic acid and methacrylate to obtain the modified polycarboxylate surfactant. The modified polycarboxylate surfactant prepared by the preparation method disclosed by the invention has excellent dispersing performance, heat storage stability and relatively high suspension rate.

The invention discloses a low-cost neutral aqueous organic iron-cerium flow battery, and belongs to the field of electrochemical energy storage. The positive electrode electrolyte and the negative electrode electrolyte both adopt organic phosphine ligand chelating metals in a water system, and organic phosphine ligands are selected from 2-hydroxyphosphonoacetic acid, etidronic acid, diethylenetriaminepenta (methylene phosphonic acid), 2-phosphonobutane-1, 2, 4-tricarboxylic acid, polyhydric alcohol phosphate ester, hexamethylenediamine tetra (methylene phosphonic acid), polyamino polyether methylene phosphonic acid and bis (1, 2, 4-tricarboxylic acid. And one or more of 2, 6-hexylidene triamine penta (methylene phosphonic acid) and lithium, sodium, potassium and ammonium salt derivatives thereof. And the supporting electrolyte is used for adjusting and stabilizing the pH environment of the electrolyte. According to the invention, no additional auxiliary electrolyte is needed, high conductivity and stable performance can be achieved, and a new possibility is developed for development and application of a flow battery technology. The material has the characteristics of stable performance, low cost, wide raw material source and environmental friendliness, and is suitable for automobile power supplies, household energy storage, standby power supplies, large-scale energy storage devices and the like.

The invention provides wear-resistant and corrosion-resistant lubricating oil and a preparation method thereof. The wear-resistant and corrosion-resistant lubricating oil is prepared from the following raw materials in parts by weight: 88-92 parts of base oil, 3-6 parts of phosphate and ammonium phosphate co-grafted graphene oxide, 0.5-1 part of a purification dispersant, 0.5-1 part of an antirust agent, 2-4 parts of an antioxidant, 0.5-1 part of a defoaming agent and 0.5-1 part of a pour point depressant. The phosphate and the ammonium phosphate are jointly grafted with the graphene oxide, and the wear resistance and the corrosion resistance of the lubricating oil are synergistically improved by utilizing the'nano bearing 'effect of a phosphate group, an ammonium phosphate group and the graphene oxide; meanwhile, by utilizing the capacity of ammonium phosphate groups for neutralizing acidic substances and the chelation of phosphate groups and combining the high specific surface area and barrier property of the graphene oxide, the anti-corrosion and anti-oxidation effects are further enhanced. Through a multifunctional synergistic effect, the problem that a traditional additive is single in function is solved, and the service life of the lubricating oil in high-temperature, high-load and extreme environments is remarkably prolonged.

The present disclosure provides methods of manufacturing psilocybin and crystalline psilocybin via a reaction of psilocin and tetrabenzylpyrophosphate in the presence of lithium chloride complex Grignard reagent, which is followed by hydrogenation. Methods of producing psilocin from 4-hydroxyindole or 4-acetoxyindole are also provided.

The present invention relates to the technical field of surfactants, and discloses a preparation method of a modified polycarboxylate surfactant and its application in pesticide preparations. The present invention uses 3-hexene-1,6-diamine and epichlorohydrin as raw materials, and obtains 1,6-tetraglycidylamine-3-hexene through ring opening and ring closing reactions. 1,6-tetraglycidylamine-3-hexene is used twice to react with sodium bisulfite and phosphoric acid in sequence to obtain tetrasulfonate-based hexene and tetraphosphate-based hexene, and then the two are copolymerized with acrylic acid and methacrylate to obtain a modified polycarboxylate surfactant. The modified polycarboxylate surfactant prepared by the present invention has excellent dispersibility, heat storage stability and high suspension rate.

The invention discloses a synthesis method of phosphorus-containing polysilazane. The synthesis method comprises the following steps: S1, preparing solid methyl hydrogen polysilazane; s2, solid methyl hydrogen polysilazane is dissolved in an organic solvent, phosphate ester is added, the mixture is stirred to be uniform, then a Karst catalyst is added, and a phosphorus-containing polysilazane solution is obtained after a heating reaction. The phosphorus-containing polysilazane solution obtained through combined action of polysilazane and phosphate containing a vinyl structure is applied to an anti-corrosion coating, the anti-corrosion coating with the thin thickness can be obtained, and the adhesive force and the salt spray resistance are excellent. According to the invention, self-made phosphorus-containing polysilazane is adopted, phosphate is connected to polysilazane through chemical modification, the salt spray resistance effect is improved, the storage stability is good, phosphorus liquid passivation treatment is not needed, and the process is green and environment-friendly.

The invention discloses a battery monomer, a battery device and electric equipment, the battery monomer comprises an electrode assembly and an electrolyte, the electrode assembly comprises a positive pole piece, the positive pole piece comprises a positive current collector and a positive active material layer arranged on at least one side of the positive current collector, and the positive active material layer comprises lithium-containing phosphate; the electrolyte comprises a carboxylic ester solvent and a linear carbonic ester solvent, based on the total mass of the electrolyte, the mass ratio of the carboxylic ester solvent is 5%-25%, and the mass ratio of the linear carbonic ester solvent is 20%-49%; the electrolyte further comprises a non-lithium salt additive, the non-lithium salt additive comprises a phosphate ester additive, and the non-lithium salt additive further comprises at least one of a carbonate ester additive, a sulfate ester additive, a borate ester additive, a silane additive and a sultone additive. The total mass of the non-lithium salt additive accounts for 0.1%-5%.

The invention provides a flame-retardant polyolefin composition as well as a preparation method and application thereof, and the flame-retardant polyolefin composition comprises the following components in parts by weight: 13-22 parts of an ethylene-vinyl acetate copolymer, 1.5-8.5 parts of linear low density polyethylene, 8-17 parts of a polyolefin elastomer, 35-55 parts of a flame retardant and 0.5-2.5 parts of an antioxidant. The antioxidant comprises a main antioxidant and an auxiliary antioxidant; the main antioxidant comprises a hindered phenol antioxidant and an amine antioxidant; and the auxiliary antioxidant comprises a thioester antioxidant and / or a phosphite ester antioxidant. According to the flame-retardant polyolefin composition disclosed by the invention, the ethylene-vinyl acetate copolymer, the linear low-density polyethylene and the polyolefin elastomer are compounded according to a specific content, and meanwhile, the antioxidant with specific composition is matched, so that the flame-retardant polyolefin composition is good in heat resistance, aging resistance and precipitation resistance; meanwhile, the mechanical property is good.

The invention relates to a flame-retardant rubber and plastic thermal insulation material and a preparation method thereof, and belongs to the technical field of high polymer materials. The flame-retardant rubber-plastic thermal insulation material comprises the following components in parts by weight: 50-75 parts of nitrile rubber, 20-45 parts of PVC resin, 10-15 parts of a plasticizer, 1-10 parts of a foaming agent, 1-5 parts of a foaming promoter, 10-40 parts of a composite flame retardant and 2-6 parts of a modified anti-aging agent, cyclohexanehexol phosphate in the composite flame retardant is heated and dehydrated into phosphoric acid, a barrier layer is formed to inhibit release of combustible materials, and dimethylallylamine combusts to absorb heat and cooperates with phosphorus-oxygen double bonds for flame retardance; a pre-product in the modified anti-aging agent reacts with a free radical of a rubber molecular chain, so that the heat resistance and the aging resistance of the material are improved, a maleimide group enhances an intermolecular acting force, the rigidity and the heat resistance of the molecular chain are improved, and material aging caused by high temperature is reduced; the flame-retardant rubber and plastic thermal insulation material prepared by the invention not only has an excellent anti-aging effect, but also has good flame retardance.

The invention provides impact-resistant high-toughness plastic as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. Comprising the following raw materials in parts by weight: 35-45 parts of hydroxyl-terminated hyperbranched polycarbonate, 15-25 parts of LDPE (Low-Density Polyethylene) resin, 8-12 parts of inorganic filler, 4-6 parts of isocyano ethyl methacrylate, 1-3 parts of bis (1-vinyl imidazole-2-) ketone, 1-3 parts of bis (trimethylsilylated) vinyl phosphate, 1-3 parts of 1, 3, 5-triglycidyl-S-triazinetrione, 1-3 parts of 3, 3 '-diamino-4, 4'-diphenyl-1, 3, 4-triazole-2-ketone, 1-3 parts of 1, 3, 5-triazole-2-ketone, 1-3 parts of 1, 3 '-trimethylsilylated vinyl phosphate, 1-3 parts of 2, 3'-diphenyl-1, 3, 4, 5- The material is prepared from the following components in parts by weight: 1-3 parts of 4, 4 '-difluorodiphenyl sulfone, 2-4 parts of a coupling agent, 0.5-1.5 parts of an antioxidant, 0.8-1.2 parts of a compatilizer, 0.7-1 part of a catalyst and 0.8-1 part of an initiator. The plastic has the advantages of favorable mechanical properties, favorable heat aging resistance, favorable impact toughness, favorable flame retardancy and favorable environmental friendliness.

An anti-oil and anti-acne shower gel, comprising the following raw material components in percentage by weight: 10-18% of a surfactant, 0.3-1% of a thickening agent, 0.5-2% of sodium chloride, 0.05-0.2% of a pH regulator, 0.1-0.6% of azelaic acid, 0.1-0.5% of caprylylglycine, 0.1-0.6% of a plant acaricide, 0.2-2% of a radix sophorae flavescentis extract, 0.01-0.1% of an Epilobium fleischeri extract, 0.1-0.5% of a saccharide isomeride mixture, 0.1-0.5% of sodium ascorbyl phosphate, 0.5-1.5% of a Tremella extract, 0.01-0.2% of a gentian extract, 0.3-0.7% of a preservative, and the balance of water.

The invention discloses a melt blending preparation process of a semiconductive shielding material for an ultrahigh-pressure crosslinked polyethylene cable, which comprises the following steps: S1, premixing low-density polyethylene and an ethylene-vinyl alcohol copolymer in proportion, the vinyl alcohol chain segment content of the ethylene-vinyl alcohol copolymer being 25%-45%; s2, performing plasma surface treatment on carbon black, and compounding the carbon black with carbon nanotubes to form a conductive filler system; s3, under the protection of inert gas, adding the matrix resin in the step S1 and the conductive filler in the step S2 into a double-screw extruder in stages, and synchronously adding a hindered phenol and phosphite compound antioxidant; and S4, carrying out segmented mixing under the temperature gradient of 160-210 DEG C. Through synergistic compounding of the plasma surface modified carbon black and the carbon nanotubes and in combination with a staged feeding process, directional dispersion of the conductive filler is realized, a three-dimensional interpenetrating conductive network is formed, and the local electric field homogenization capability of the ultrahigh-voltage cable is remarkably improved.

The invention discloses a lithium iron phosphate positive electrode material preparation method, which comprises: 1, adding high polyphosphoric acid and fatty alcohol ether polyoxyethylene ether into a reaction kettle, uniformly mixing, and carrying out a reaction for 2-4 h at a temperature of 70-90 DEG C to obtain fatty alcohol polyoxyethylene ether phosphate; 2, adding iron phosphate, a lithium source, a conductive agent, a metal compound and the fatty alcohol-polyoxyethylene ether phosphate into water, and carrying out ball milling to form mixed slurry; and 3, sequentially carrying out spray drying, sintering and crushing on the mixed slurry to obtain the lithium iron phosphate positive electrode material. Compared with the prior art, the lithium iron phosphate positive electrode material has the advantages that the carbon coating mode of the lithium iron phosphate positive electrode material is optimized by adopting the scheme of taking the fatty alcohol polyoxyethylene ether phosphate as the carbon source, relatively large steric hindrance is generated by decomposition of the carbon source in the sintering process, and growth of lithium iron phosphate particles is hindered; and the lithium iron phosphate positive electrode material with small particle distribution as a main component is prepared.

The invention discloses a method for directly and selectively extracting indium from a high-iron indium-containing solution without reduction, which comprises the following steps: mixing the high-iron zinc indium-containing solution obtained by acid leaching of zinc oxide with a composite extractant, extracting, separating to obtain an indium-iron-containing organic phase, adding a detergent into the indium-iron-containing organic phase for washing, and separating to obtain a zinc-removed indium-iron-containing organic phase, the method comprises the following steps: adding a composite extractant into a high-iron-zinc indium-containing solution, then adding a stripping agent to carry out indium stripping to obtain an indium-containing stripping solution so as to realize the separation of indium in the high-iron-zinc indium-containing solution, and the composite extractant consists of 10-40% by volume of a phosphate extractant A, 5-20% by volume of a phosphoric acid synergistic extractant B and 40-85% by volume of sulfonated kerosene. According to the method, ferric iron does not need to be reduced, the indium-iron separation coefficient is high, extraction is not prone to emulsification, and the indium recovery rate is high.

The invention discloses a delayed coagulation type polycarboxylate superplasticizer and a preparation method thereof, and relates to the field of concrete admixtures. The retarding type polycarboxylic acid water reducing agent is prepared from 45 to 55 parts of unsaturated polyether monomer, 15 to 20 parts of quaternary ammonium salt cationic monomer, 10 to 15 parts of unsaturated sulfonic acid or unsaturated sulfonate monomer, 5.5 to 7.5 parts of unsaturated phosphate monomer, 4.8 to 6.2 parts of unsaturated hydroxy fatty acid ester monomer, 100 to 120 parts of acrylic acid, 1 to 2 parts of chain transfer agent, 1.5 to 2 parts of oxidizing agent, 0.75 to 1 part of reducing agent and 500 parts of water. The structural general formula of the unsaturated polyether monomer is R1CH2O (CH2CH2O) nR2, R1 is an alkenyl group, and R2 is any one of a phenyl group and a phenylalanine alkyl ester group. The delayed coagulation type polycarboxylate superplasticizer can effectively improve the delayed coagulation effect of a concrete mixture with the fine aggregate mud content larger than 1.5% in a high-temperature environment, and constructability is ensured.

The invention provides an additive adding system and method for a phosphate fire-resistant oil system, and the additive adding system comprises an additive adding control system, an additive quantitative adding device, an additive dissolving device, a vacuumizing device, an oil product injection device, an oil product discharge device and an additive adding control system which are connected, the additive quantitative adding device can automatically add an additive into the additive dissolving device, the additive dissolving device is connected with an oil system needing additive adding through the oil injection device and the oil discharge device, the additive is directly dissolved in the oil system, and all oil in the oil system gradually flows through the additive dissolving device. The phosphate fire-resistant oil additive adding device is simple in structure and convenient to operate, it is guaranteed that even additives with low solubility in phosphate fire-resistant oil can be added, after the device is connected into an oil system through a control system, the additive adding process can be automatically completed, oil products cannot be polluted, and the additive adding process can be simple, efficient and labor-saving.

The invention relates to the technical field of fireproof plates, and discloses a flame-retardant fireproof plate material and a preparation method thereof. Modified benzoxazine, an aromatic bromine modified phosphate flame retardant, polyvinyl chloride, lignocellulose and calcium carbonate are mixed, stirred, pressed, maintained and cut, and the flame-retardant fireproof plate material is obtained. Nitrogen and oxygen six-membered heterocycles in benzoxazine form a stable compound at a high temperature to prevent flame propagation; the silicon element promotes carbonization of combustion products to form a carbonaceous layer, and a cross-linked network formed by silicon-oxygen bonds improves the mechanical property of the fireproof plate material; a net-shaped structure formed by boron-oxygen bonds has high flame retardance; hydrogen fluoride generated by the fluorine element can interrupt the combustion chain reaction; aromatic bromine generates hydrogen bromide to cover the combustion surface, so that a flame-retardant effect is achieved; a carbonization layer is formed on the surface of the fireproof plate material through polymetaphosphoric acid generated by phosphate, so that a flame-retardant effect is achieved; the aromatic bromine modified phosphate flame retardant plays a plasticizing role in polyvinyl chloride, and the mechanical property of the polyvinyl chloride is improved.

The invention relates to a non-aqueous electrolyte and a lithium secondary battery. In order to solve the problems of poor cycle performance, high impedance and serious gas production of a lithium secondary battery, the invention provides a non-aqueous electrolyte, the non-aqueous electrolyte comprises an organic solvent, a lithium salt and additives, the additives comprise a first additive, a second additive and a third additive, the first additive is selected from one or more of compounds shown in a formula I, and the third additive is selected from one or more of compounds shown in a formula II; the formula I is # imgabs0; the second additive is selected from a compound shown in a formula II and / or a formula III; the formula II is # imgabs 1 #, the formula III is # imgabs 2 #, and the third additive is selected from one or more of double-bond-containing cyclic carbonate, halogen-containing cyclic carbonate, sulfonate, sulfate, sulfite, anhydride, a benzene compound, a fluorobenzene compound, a nitrile compound, phosphate, phosphite, a boron compound, an amine compound, a silicon-containing compound and a heterocyclic compound. Through the synergistic effect of the three additives, the cycle performance of the battery is improved, the impedance of the battery is reduced, and the gas production of the battery is reduced.

Provided is a lubricating oil composition containing a base oil (A), a phosphorous acid ester (B) having at least one sulfur atom-containing group having 2 to 20 carbon atoms, the sulfur atom-containing group having at least one -(S)x- group (x is an integer of 1 or more) between two adjacent carbon atoms in a structure of an alkyl group, a thiadiazole-based compound (C), and a benzotriazole-based compound (D), wherein a content of the component (C) is 0.01 mass% or more and less than 0.60 mass% based on the total amount of the lubricating oil composition, and a content of the component (D) is 0.02 mass% or more and less than 0.20 mass% based on the total amount of the lubricating oil composition.

The invention discloses high-adhesion port machine lubricating grease and a preparation method thereof, and relates to the technical field of lubricating material preparation and application, the high-adhesion port machine lubricating grease is prepared from the following components by weight: 60-80 parts of base oil, 3-5 parts of a functional copolymer, 0.1-0.6 part of Meso-tetramethyl-meso-tetra (p-aminophenyl) calix [4] pyrrole, 0.1-0.6 part of 1, 2, 4-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1, 3, 5-trimethyl-1 The lubricating oil comprises the following components in parts by weight: 0.3-0.5 part of 1, 3-diaminothiourea, 3-5 parts of molybdenum sulfide nanosheets, 0.5-1 part of an antirust agent, 0.1-1 part of a dispersing agent, 2-4 parts of an antioxidant and 0.3-0.6 part of modified rosin. The functional copolymer comprises a structural unit introduced by the following monomers: bis (trimethylsilylated) vinyl phosphate, 4-methyl-5-vinylthiazole, N-(4-cyano-3-trifluoromethylphenyl) methacrylamide and vinyl boronic acid pinacol ester. The lubricating grease is high in adhesive force and excellent in extreme pressure wear resistance, salt mist resistance and damp heat resistance.

The invention relates to the technical field of protective glue, in particular to extreme high and low temperature impact resistant UV (ultraviolet) photocuring electronic protective glue which is prepared from the following raw materials in parts by weight: 30-50 parts of synergistically modified epoxy-urethane acrylate oligomer, 20-35 parts of composite active monomer, 1.5-5 parts of composite photoinitiator and 10-20 parts of core-shell structure inorganic composite filler, 0.6 to 2.2 parts of a silane coupling agent, 0.12 to 1.1 parts of an antioxidant and 0.11 to 1 part of a leveling agent; the preparation method of the synergistically modified epoxy-urethane acrylate oligomer comprises the following steps: reacting resin acid modified epoxy resin with phosphoric acid di (hydroxyethyl acrylate) ester at 80-90 DEG C, and introducing a phosphate group to obtain a phosphate modified epoxy acrylate intermediate; the protection glue unifies rigidity, flexibility and flame retardance on the molecular level through the cooperation of the hybrid oligomer and the core-shell filler, realizes high heat conductivity, strong adhesion and extremely low internal stress, and has extreme temperature impact resistance, long-term damp-heat aging resistance and high-reliability protection performance.

The invention relates to the field of fire-resistant oil, in particular to phosphate-based fire-resistant oil with synergistically optimized flame resistance and stability and a preparation method of the phosphate-based fire-resistant oil. The fire-resistant oil comprises base oil and an additive, the base oil is a mixture obtained by esterification of mixed alkylphenol and phosphorus oxychloride; the molar percentage of the mixed alkylphenol is as follows: 4-6% of phenol; 11 to 14 percent of p-methylphenol; 22 to 26 percent of 2, 5-position dimethyl phenol; 0.8 to 1.5 percent of 2, 4-position dimethyl phenol; 2.5 to 4 percent of 2, 3-position dimethyl phenol; 0.4 to 0.6 percent of 4-ethyl phenol; 40 to 48 percent of 3, 5-position dimethyl phenol; 8 to 11% of 3-ethyl phenol; 3 to 5 percent of 3, 4-position dimethyl phenol; the additives comprise an antioxidant, a corrosion inhibitor, an anti-foaming agent and an anti-hydrolysis agent; the addition amount of the antioxidant is 0.05-5% of the total mass of the base oil; the addition amount of the corrosion inhibitor is 0.001%-0.08% of the total mass of the base oil; the addition amount of the anti-foaming agent is 0.001%-0.009% of the total mass of the base oil; the addition amount of the anti-hydrolysis agent is 0.001%-0.005% of the total mass of the base oil. The fire-resistant oil provided by the invention can be safely used under the working conditions of high temperature and extreme pressure.

The invention relates to the technical field of high polymer materials, and particularly discloses a fluoride-free halogen-free flame-retardant polycarbonate material and a preparation method and application thereof.The fluoride-free halogen-free flame-retardant polycarbonate material is prepared from, by weight, 70-90 parts of polycarbonate resin, 8-15 parts of phosphorus-nitrogen flame retardant and 3-8 parts of silicon flame-retardant synergist, the composite material is prepared from the following raw materials in parts by weight: 20-30 parts of polypropylene, 2-5 parts of nano reinforcing filler, 0.1-0.5 part of hindered phenol antioxidant, 0.1-0.5 part of phosphite ester antioxidant and 0.1-0.5 part of pentaerythritol stearate. Through the synergistic effect of the composite flame-retardant system and the nanofiller, high flame retardance (UL94 V-0 level, 1.5 mm thickness), high heat resistance (the heat distortion temperature is greater than or equal to 130 DEG C) and excellent mechanical property are realized, the control is easy, the processing is stable, good balance of flame retardance and mechanical property is achieved on the premise of environmental protection, and the composite flame-retardant material is suitable for the fields of high-end household appliances and consumer electronics.

The invention discloses a modified polylactic acid material applied to high-speed 3D printing and a preparation method of the modified polylactic acid material. The modified polylactic acid material comprises the following components in parts by weight: 50-80 parts of a polylactic acid material, 10-30 parts of inorganic powder, 1-10 parts of a toughening agent, 0.1-0.5 part of a coupling agent, 0.1-0.4 part of a hindered phenol antioxidant, 0.1-0.4 part of a phosphite antioxidant and 0.2-0.6 part of a plasticizer. The invention has the following beneficial effects: PLA with different flowability is compounded as a base material and is blended with inorganic powder, so that the printing speed of the material reaches 500mm / s, and excellent printability of high precision, no wiredrawing and layer grain covering is achieved; the coupling agent is introduced into a system of the PLA and the inorganic powder, so that the surface polarity of the inorganic powder is improved, the inorganic powder has good compatibility with a resin matrix, and the interlayer adhesive force and the mechanical property of the material are further improved.

The invention discloses a method for separating iron and lithium in a lithium iron phosphate iron salt leaching solution and recycling iron phosphate, and belongs to the technical field of waste lithium battery recycling. The method comprises the following steps: constructing a bis (2-ethylhexyl) phosphate and trioctyl decyl tertiary amine mixed extraction system for selective extraction of Fe < 3 + >, adopting phosphoric acid for reverse extraction, recycling phosphoric acid reverse extraction liquid, preparing iron phosphate and the like. According to the method, efficient enrichment of Fe < 3 + > and efficient elution of Fe < 3 + > from a loaded organic phase are realized. The purity of the raffinate Li solution is relatively high, so that the subsequent preparation of battery-grade lithium carbonate is facilitated. The strip liquor can be recycled for multiple times, an iron intermediate is precipitated through pH adjustment, and the FePO4 product can be finally prepared through washing, aging and high-temperature calcination. The method is high in extraction selectivity, recyclable in process and mild in operation condition, has good separation effect and resource utilization efficiency, and is suitable for popularization and application of a Fe / Li separation process in lithium battery recovery.