74 results about "Triphenyl phosphite" patented technology

The invention discloses a coating type high-molecular flame-retardant material. The composite material is prepared from the following components: organic silicon modified epoxy resin, a bio-based castor oil derivative, hydroxyapatite, carbon nanofibers, expanded graphite, ammonium polyphosphate, zinc borate, nano silicon dioxide, molybdenum oxide, microencapsulated red phosphorus, magnesium hydroxide, melamine cyanurate, aluminum diethylphosphinate, pentaerythritol, trihydroxymethyl phosphine oxide and a silane coupling agent. The coating is prepared from a titanate coupling agent, stearic acid, polyethylene glycol, 2, 6-butylated hydroxytoluene, triphenyl phosphite, 2, 4-dihydroxybenzophenone, sebacic diester, polytetrafluoroethylene micro powder, a modified polydimethylsiloxane flatting agent, organic montmorillonite, a polyether modified silicon defoaming agent and a solvent. The invention has the beneficial effects of high flame retardant efficiency, environmental friendliness, excellent comprehensive performance and excellent processability.

The present invention provides a polyester heat-shrinkable film containing recycled materials and a preparation method thereof, belonging to the technical field of polymer synthetic films. The raw materials of the polyester heat-shrinkable film include recycled PET polyester particles, PET polyester chips, and a modified masterbatch; the modified masterbatch is prepared from polyethylene terephthalate-1,4-cyclohexanedimethanol ester, triphenyl phosphite, polyethylene glycol block copolymer, nano-silica, and hyperbranched polyester amine; the polyethylene glycol block copolymer is prepared from polyethylene glycol and γ-valerolactone under the action of a catalyst; the hyperbranched polyester amine is prepared from trimethylolpropane, methyl crotonate, and diethylenetriamine. The product of the present invention has excellent properties such as excellent unidirectional anti-shrinkage performance and low haze.

The invention is applicable to the technical field of fuel cells, and provides a blending modified polybenzimidazole proton exchange membrane and a preparation method thereof, and the preparation method comprises the following steps: S1, preparing 4-methyl-N-toluenesulfonyl benzene sulfonamide; s2, preparing 4, 4 '-[imino bis (sulfonyl)] dibenzoic acid; s3, preparation of PSI: dissolving CBSI and a proper amount of anhydrous lithium chloride in a proper amount of a mixed solution of pyridine, triphenyl phosphite and pyrrolidone, adding diamino molecules after complete dissolution, heating and stirring the solution for 12 h, pouring the solution into methanol, filtering and collecting a product, washing with water, and drying to obtain the product PSI; and S4, preparing the PSI / OPBI blended membrane. The blended membrane prepared by the invention has excellent proton conductivity and good mechanical properties, and meets the performance requirements of the proton exchange membrane of the fuel cell; moreover, the raw materials are low in cost and easy to obtain, the synthesis conditions are mature, the yield is high, the feasibility is high, and the application prospect is wide.

The invention relates to the technical field of sizing agent preparation, and discloses polyamide and a preparation method thereof as well as a sizing agent and application thereof. The method comprises the following steps: reacting a monomer 1, a monomer 2, an optional monomer 3, triphenyl phosphate, a catalyst and an organic solvent in an inert atmosphere; wherein the monomer 1 is binary acid containing a sulfonate group, the monomer 2 is diamine, the monomer 3 is aliphatic binary acid, and the catalyst contains an organic catalyst and a metal inorganic salt catalyst. The polyamide provided by the invention has relatively high solubility; the polyamide and a polyamide resin matrix have good bonding performance, and the bonding performance of carbon fibers and polyamide resin can be greatly improved by using the polyamide as a sizing agent of the carbon fibers.

The invention discloses a low-smoke halogen-free environment-friendly flame retardant, and relates to the technical field of flame retardants. The invention discloses a low-smoke halogen-free environment-friendly flame retardant. The graphene quantum dot composite material is prepared from the following raw materials in parts by weight: 8 to 12 parts of novel phosphorus-nitrogen heterocyclic compound, 5 to 9 parts of silane-terminated polyether, 2 to 5 parts of graphene quantum dot dispersion liquid, 6 to 10 parts of pentaerythritol diphosphate melamine salt, 5 to 8 parts of melamine cyanurate, 3 to 6 parts of zinc borate, 8 to 12 parts of magnesium hydroxide, 10 to 15 parts of ammonium polyphosphate, 3 to 7 parts of modified polycarbonate and 4 to 8 parts of aluminum diethylphosphinate. The invention relates to a high-temperature-resistant anti-aging coating which is prepared from the following components in parts by weight: 2-4 parts of an organic silicon elastomer, 0.2-0.5 part of triphenyl phosphate, 0.3-0.6 part of polyethylene wax, 0.3-0.8 part of a silane coupling agent KH-550 and 25-35 parts of deionized water. The low-smoke halogen-free environment-friendly flame retardant disclosed by the invention has remarkable advantages, adopts various environment-friendly raw materials, and is green, safe and free of halogen pollution. Through the unique formula design, all the components have a synergistic effect, the flame retardant property is excellent, and the fire risk can be effectively reduced. The added graphene quantum dots and other components also improve the thermal stability and mechanical properties of the product, and the application prospect is wide.

The preparation method comprises the following steps: sequentially carrying out esterification reaction and polycondensation reaction on terephthalic acid, ethylene glycol, equol or a derivative thereof in the presence of the catalyst to generate the modified polyester, wherein the catalyst is prepared by enabling antimony trioxide, stannous octoate, tetrabutyl titanate and triphenyl phosphite to react in a solvent at the temperature of 100 DEG C or above; the modified polyester prepared by the method has relatively high intrinsic viscosity and fracture tensile strength, can meet the application requirements of special high polymer materials, and solves the problem that the application of semi-biomass PET copolyester in the field of special high polymer materials is limited in the prior art.

The invention relates to the technical field of wastewater treatment, in particular to a multi-stage circulating filtration system and method based on triphenyl phosphate production wastewater, and the system comprises a first-stage filtration system, a second-stage filtration system, a third-stage filtration system, a front-end wastewater collection tank and a flow pump, the front ends of the first-stage filtration system, the second-stage filtration system and the third-stage filtration system are connected with a three-way pipe through the flow pump, and the three-way pipe is mounted at the lower end of an anti-precipitation unit; the upper end of the anti-precipitation unit is fixedly connected with a front-end wastewater collection tank, an air source assembly is mounted on the inner side of the upper end of the front-end wastewater collection tank, and a telescopic air pipe is mounted at the lower end of the air source assembly; the anti-precipitation unit comprises a stirring box, one end of the stirring box is fixedly connected with a side end liquid discharging pipe through screws, a liquid discharging hole is formed in the middle of the bottom end of the stirring box, a stirring assembly is installed in the stirring box, and stirring blades are installed on the outer side of the stirring assembly. According to the invention, the air source assembly is driven by the liquid level change of the collecting box, the air pressure is used as power, the operation of the stirrer and the action of the cleaning scraper are automatically controlled in a linkage manner, stirring as required is realized, and energy is remarkably saved.

A method for converting post-consumer recycled (PCR) flakes of polyethylene terephthalate (PET) to pellets as part of a container recycling procedure, the method including: adding triphenyl phosphite antioxidant to a reactor at a concentration of 0.05 wt.% to 0.15 wt.%; coating the PCR flakes with the triphenyl phosphite in the reactor; and converting the PCR flakes to the pellets in an extruder after coating the PCR flakes with the triphenyl phosphite to reduce yellowing of the pellets during the conversion.

The present invention relates to the field of lithium-ion battery technology, and more particularly to an electrolyte, a preparation method thereof, an injection method, and a lithium-ion battery. The electrolyte comprises a first electrolyte for a first injection and a second electrolyte for a second injection. The first electrolyte comprises a first solvent, a first lithium salt, and a first additive, and the second electrolyte comprises a second solvent, a second lithium salt, and a second additive. The second electrolyte accounts for 5% to 20% of the electrolyte by mass, the first additive comprises dimethyl sulfide and vinylene carbonate, and the second additive comprises triphenyl phosphite and vinylene carbonate. By including dimethyl sulfide in the first additive and triphenyl phosphite in the second additive, the electrolyte improves the problems of high-temperature gassing and black spots at the negative electrode interface during use of lithium-rich material lithium supplements.

The invention relates to an oily liquid absorbing and storing agent which is selected from one of corn starch and cassava starch. The preparation method comprises the following steps: selecting proper macromolecular resin as a framework material: one or more than one of polypropylene, polystyrene and polymethyl methacrylate; one of benzoyl peroxide, azodiisobutyronitrile and dibenzoyl peroxide is selected; triphenyl phosphate or Lewis acid is commonly used, so that the process of generating free radicals by the initiator can be accelerated; the solvent is one of vinyl benzene, trimethylolpropane triacrylate and dimaleimide; one of sodium dodecyl benzene sulfonate and lauryl sodium sulfate can be selected. The invention also discloses a method.

The present application belongs to the technical field of cable material, and particularly relates to a resin composition, a cable insulation material, a cable and a preparation method. The resin composition comprises polyethylene, a crosslinking agent and a crosslinking aid. The crosslinking agent is selected from one or more of triallyl isocyanurate, trimethylolpropane trimethacrylate and trimethylolpropane triacrylate. The crosslinking aid is selected from one or more of triphenyl phosphite, dipropylene glycol diacrylate and tetraethylene glycol diacrylate. The cable insulation material made of the resin composition has a high irradiation crosslinking rate, which can significantly improve the irradiation processing speed of the subsequent cable and improve the cable output efficiency. In addition, the cable insulation material has good aging resistance, can meet the long service life requirement, saves the cable update cost and has good economic benefits.

The application relates to a water-erosion-resistant compressor impeller, and relates to the technical field of impeller materials, which comprises an impeller base body, a high-entropy alloy layer and a super-hydrophobic layer, the super-hydrophobic layer is obtained by coating super-hydrophobic paint on the surface of the high-entropy alloy layer, and the preparation raw materials of the super-hydrophobic paint comprise the following components in mass fraction: 10-20 parts of fluorosilicon resin, 5-10 parts of modified alumina crosslinking agent, 40-60 parts of modified hyperbranched polyester, 1-2 parts of triphenyl phosphite, 0.4-0.6 parts of titanium catalyst and 40-50 parts of solvent. The application has the effect of improving the hardness and water-erosion resistance of the impeller, the impeller can resist the impact damage of water during the working process, and can maintain good working performance for a long time.

The invention provides a lithium ion battery, which comprises a positive electrode, a negative electrode and a non-aqueous electrolyte, the positive electrode comprises a positive electrode current collector and a positive electrode active material layer arranged on at least one side surface of the positive electrode current collector, the positive electrode active material layer comprises a positive electrode active material, the positive electrode active material contains a doping element, and the doping element is a non-aqueous electrolyte. The doping element comprises one or more of Mg, Zn and Cr; the non-aqueous electrolyte comprises an additive, the additive comprises a compound as shown in a structural formula 1 and a water removal acid additive, and the water removal acid additive comprises triphenyl phosphate; in the structural formula 1, n is 0 or 1, A is selected from C or O, X is selected from H, R1 and R2 are independently selected from H, or R1 and R2 are not selected from H at the same time, and X, R1 and R2 at least contain one sulfur atom; the lithium ion battery satisfies 15 < = < = 5000; 0.01 < = a < = 0.8, 20 < = b < = 1000, 20 < = c < = 200, and 0.4 < = d < = 1.8; the present application provides a lithium ion battery that achieves both low impedance growth and long cycle life.

The invention relates to the technical field of organic alcohol synthesis, and discloses a method for synthesizing isononyl alcohol. The method comprises the following steps: (1) mixing octylene, a rhodium catalyst and a phosphine ligand, then introducing synthesis gas into the obtained mixture, and carrying out hydroformylation reaction to obtain isononanal; (2) in the presence of a hydrogenation catalyst, mixing the isononanal with hydrogen for hydrogenation reaction; wherein the phosphine ligand is selected from two or more of triphenyl phosphite, tris (2, 4-di-tert-butylphenyl) phenyl phosphite, triphenylphosphine, 6, 6 '-{[5, 5'-dimethoxy-3, 3 '-bis (2-methyl-2-propyl)-2, 2'-biphenyl diyl] bis (oxy)} bis [dibenzo (d, f) (1, 3, 2) dioxaphosphoheptane] and 4, 5-bis (diphenylphosphine)-9, 9-dimethyl xanthene. According to the method, the conversion rate of mixed octylene in the hydroformylation process and the selectivity and yield of isononyl aldehyde can be remarkably improved, so that the yield of isononyl alcohol is improved, reaction conditions are mild, and the method has remarkable economic value and wide industrial application prospects.

The present invention relates to the technical field of bioresins, and more specifically, to a sustainable biodegradable bioresin modified with natural plant oils and a preparation process thereof. The bioresin comprises the following raw materials: 30-60 parts by weight of modified corn oil, 5-15 parts by weight of a cross-linking agent, 0.5-3 parts by weight of benzoyl peroxide, 5-15 parts by weight of triethyl citrate, 10-30 parts by weight of regenerated cellulose fiber, 0.5-2 parts by weight of 2-hydroxy-4-n-octyloxybenzophenone, and 0.5-2 parts by weight of triphenyl phosphite. N-butylpyridinium tetrafluoroborate promotes double bond isomerization reaction, changing the position or type of double bonds in fatty acid chains, thereby generating a more stable molecular structure. The stability of this structure allows for tighter connections between molecular chains, effectively transferring stress and significantly improving tensile strength.

The invention discloses an antioxidant emamectin benzoate missible oil pesticide and a production process thereof. Comprising 1 to 5 parts of emamectin benzoate, 1 to 3 parts of an antioxidant, 5 to 10 parts of an emulsifier, 60 to 80 parts of a solvent, 5 to 10 parts of a cosolvent and 50 to 80 parts of water, wherein the antioxidant comprises 0.5 to 1.5 parts of butylated hydroxytoluene and 0.5 to 1.5 parts of triphenyl phosphate; the solvent comprises 30 to 60 parts of cyclohexanone and 10 to 40 parts of N-methyl pyrrolidone; calcium dodecyl benzene sulfonate and castor oil polyoxyethylene ether are compounded according to the proportion of 1: 1.5 to serve as an emulsifying agent, a stable interfacial film can be formed between an oil phase and a water phase, di-tert-butyl-p-cresol and triphenyl phosphite added in the product synergistically exert the anti-oxidation effect, di-tert-butyl-p-cresol can provide hydrogen atoms, and the anti-oxidation effect is good. And the triphenyl phosphite can decompose peroxides generated in the oxidation process of the emamectin benzoate, so that the problem of drug effect oxidation reduction caused by storage is reduced.

The present invention provides an anti-corrosion polyurethane composite protective film for a battery and a preparation method thereof, which belongs to the technical field of battery protection materials, and comprises the following steps: mechanically stirring and mixing fluorosilicone resin, polyurethane emulsion, propylene glycol methyl acetate, and triphenyl phosphite, ultrasonicating, and heating and dehydrating to obtain fluorosilicone / polyurethane emulsion; mixing methylated guar gum powder, hydrophobic nano-clay water suspension, nano-alumina and nano-titanium dioxide ethanol dispersion, ultrasonicating, and mechanically stirring to obtain methylated guar gum-based composite material; preparing fluorosilicone / polyurethane film by electrostatic spinning of fluorosilicone / polyurethane emulsion, adding polytetrahydrofuran diamine to methylated guar gum-based composite material, stirring, coating on fluorosilicone / polyurethane film, and standing and curing to obtain anti-corrosion polyurethane composite protective film. The present invention can protect the battery from corrosion while improving thermal stability and insulation.

The synthesis method comprises the following steps: by taking a carboxylic acid compound and a secondary amine compound as reaction raw materials and triphenyl phosphite and p-xylene with the equivalent weight of 0.5 as solvents, heating to 160 DEG C in a nitrogen atmosphere, and effectively reacting for 24 hours, so as to obtain the phosphite-mediated amide compound generated by carboxylic acid and secondary amine. And the amide compound is obtained with high yield. The method has the advantages of high yield, simplicity and convenience in operation, few additives, low cost, no pollution and the like, and has certain feasibility for realizing industrial production.

The invention discloses a structural adhesive material for tunnel secondary lining crack repair and a preparation method thereof, and relates to the technical field of tunnel engineering repair materials, the structural adhesive material comprises the following components by weight: 60-80 parts of epoxy resin, 20-30 parts of 2, 4-diamino-6-diallylamino-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4 The invention relates to a light-emitting diode (LED) fluorescent powder which is prepared from the following components in parts by weight: 5 to 8 parts of 1, 3, 5-triazine, 3 to 5 parts of meso-tetramethyl-meso-tetra-p-aminophenyl calix [4] pyrrole, 1 to 3 parts of triphenyl isocyanate thiophosphate, 3 to 5 parts of 2, 4, 6-trivinyl boroxane, 6 to 13 parts of reinforcing filler, 1 to 3 parts of coupling agent, 0.5 to 1 part of accelerant, 1 to 3 parts of penetrant, 0.1 to 0.3 part of photoinitiator and 0.3 to 0.6 part of catalyst. The structural adhesive material for repairing the tunnel secondary lining crack disclosed by the invention can quickly repair and permeate the crack, does not fall off under the action of long-term wind load, and has a good bonding effect.

This invention provides a circular polarizing eye-protecting AB adhesive, relating to the field of adhesive production technology. This circular polarizing eye-protecting AB adhesive is prepared by mixing and stirring component A and component B. Component A consists of the following raw materials: epoxy resin composite; modified epoxy acrylate prepolymer; cholesteric liquid crystal-epoxy hybrid microspheres; fluorescent dye; anti-aging agent; and acid-free optical grade additives. Component B consists of the following raw materials: amine curing agent; dihedral naphthalenedicarboximide derivative containing amine groups; aminosilane coupling agent; polyetheramine accelerator; and triphenyl phosphite anti-yellowing agent. This invention can be widely applied to the protection and optical optimization of various screens such as smartphones, tablets, automotive displays, and wearable devices, and has significant practical value and industrialization prospects.

The invention relates to the technical field of biological resin, in particular to sustainable degradable biological resin based on natural vegetable oil modification and a preparation process of the sustainable degradable biological resin. Comprising the following raw materials in parts by weight: 30 to 60 parts of modified corn oil, 5 to 15 parts of a cross-linking agent, 0.5 to 3 parts of benzoyl peroxide, 5 to 15 parts of triethyl citrate, 10 to 30 parts of regenerated cellulose fiber, 0.5 to 2 parts of 2-hydroxy-4-n-octyloxybenzophenone and 0.5 to 2 parts of triphenyl phosphate. The N-butylpyridine tetrafluoroborate promotes double bond isomerization reaction and changes the positions or types of double bonds in fatty acid chains, so that a more stable molecular structure is generated, connection between molecular chains is tighter due to the stability of the structure, stress is effectively transmitted, and the tensile strength is remarkably improved.

The invention relates to the technical field of heat stabilizers, and particularly discloses a citric acid compound heat stabilizer and a preparation method and application thereof. The citric acid compound heat stabilizer comprises zinc citrate, and further comprises one or more of calcium stearate, epoxidized soybean oil, stearoylbenzoylmethane and triphenyl phosphate. The citric acid compound heat stabilizer disclosed by the invention is applied to preparation of a polyvinyl chloride material, and has the advantages of excellent heat stabilization effect and environmental friendliness.

The application provides a synthesis method of high-hygroscopic-dispersing-dye easy-to-dye functional polyester, which comprises the following steps: step one, esterification one-pot; step two, esterification two-pot; step three, final polymerization pot (polycondensation); and step four, discharging and slicing. The polyester is prepared by a continuous polymerization or an intermittent polymerization mode, p-terephthalic acid, ethylene glycol and ethylene glycol antimony are added in the esterification one-pot, polyethylene glycol, nano montmorillonite, cobalt acetate, stabilizer Irganox1010 and triphenyl phosphite are added in the esterification two-pot; the low-temperature coloring and the hygroscopic property of the polyester are realized by adding the polyethylene glycol, the easy-to-dye and the hygroscopic property of the polyester are realized by adding the nano montmorillonite, the ethylene glycol antimony is added as a catalyst, the polymerization reaction and the stability of the polyester are realized by adding the cobalt acetate, the stabilizer Irganox1010 and the triphenyl phosphite, and finally the easy-to-dye and the hygroscopic effect of the polyester are realized.

This invention belongs to the field of polymer organic chemistry technology and discloses a high-temperature resistant copolymer flame retardant for nylon resin and its preparation method. Under nitrogen protection, the flame retardant is prepared in a two-step process using triphenyl phosphite, cyanuric chloride, and terephthalic acid or 1,6-naphthalenedicarboxylic acid as raw materials. The resulting flame retardant is a halogen-free, environmentally friendly, and high-temperature resistant intrinsic flame retardant. This flame retardant requires a small dosage, and the resulting nylon resin maintains high flame retardant performance without affecting its mechanical properties.

The invention discloses a polylactic acid composition with both strength and toughness and a preparation method thereof. The polylactic acid composition is prepared from 1000 parts by weight of polylactic acid, 30-40 parts by weight of polypropylene glycol, 10-40 parts by weight of triphenyl phosphate, 100-500 parts by weight of a filler, 0.2-2 parts by weight of a coupling agent and 1-10 parts by weight of an antioxidant. According to the polylactic acid composition and the preparation method thereof, the polylactic acid composition obtained by compounding the toughening agent not only has excellent elongation at break, but also has relatively high tensile strength and good toughness and strength, and the application range of polylactic acid is widened.

The invention belongs to the technical field of cable preparation, and provides a low-temperature-resistant corrosion-resistant flexible robot cable and a preparation method thereof. The preparation method comprises the following steps: preparing tris (2-hydroxyethyl) phosphite from triphenyl phosphite and ethylene glycol; then, through free radical polymerization of 2-methyl-2-acrylic acid-2-hydroxyethyl ester phosphate and hydroxyethyl pyrrolidone, in combination with functional modification of 2-acrylamido-2-methylpropanesulfonic acid and a cross-linking reaction of divinyl benzene, a modified oligomer is obtained; meanwhile, through a polyesterification reaction of adipic acid, polytetrahydrofuran glycol, polypropylene glycol and tris (2-hydroxyethyl) phosphite ester and silanization modification of trifluoropropyltrimethoxysilane, a polyester hybrid with corrosion resistance is prepared; and finally, compounding low-density polyethylene, a polyolefin elastomer, the modified oligomer, the polyester hybrid and a plurality of auxiliaries to prepare a sheath layer master batch, and finally obtaining the low-temperature-resistant corrosion-resistant flexible robot cable.

The invention belongs to the technical field of new energy batteries, and particularly relates to a lithium ion battery. The lithium ion battery comprises a positive electrode, a negative electrode, a diaphragm and a non-aqueous electrolyte, the anode and the cathode respectively comprise an anode current collector and a cathode current collector; the positive current collector is an aluminum foil or a composite current collector, the negative current collector is a copper foil or a composite current collector, and at least one of the positive current collector and the negative current collector is a composite current collector; the non-aqueous electrolyte contains triphenyl phosphate and a first additive, and the first additive comprises at least one of tris (trimethylsilane) phosphate, tris (trimethylsilane) borate or tris (trimethylsilane) phosphite; when the positive current collector is a composite current collector and / or the negative current collector is a composite current collector, the lithium ion battery meets the following conditions: (a + c) * b * d is more than or equal to 1 and less than or equal to 500; 0.5 < = a < = 2, 20 < = b < = 800, 0.5 < = c < = 2, and 0.01 < = d < = 1. The lithium ion battery has the advantages of high energy density, low impedance increase and excellent cycle performance.

The present invention belongs to the technical field of preparation and application of copper ion coordination compounds, and specifically provides a divalent copper ion coordination polymer and a preparation method and application thereof. The present invention uses 1,2-ethylenediamine, isonicotinic acid, and triphenyl phosphite as raw materials to synthesize N,N'-bis(4-pyridinecarboxamide)-1,2-ethane, and then uses it as a ligand to construct a divalent copper ion coordination polymer by a hydrothermal method. The coordination polymer is a triclinic system with a molecular formula of C 21 H 17 CuN2O5 can not only inhibit the activation process of urease apoprotein, but also fill the active pocket of urease well, occupy the active position of urease hydrolysis of urea, and interact with the active site of urease, thereby causing irreversible inhibition of urease activity and achieving the effect of inhibiting urease activity.

The invention provides a graphene-modified fireproof anticorrosive coating which comprises a component A and a component B. The component A comprises 35%-38% by weight of first bio-based polyol, 25%-28% by weight of isocyanate, 0.2%-0.5% by weight of triphenyl phosphate and 33.5%-37% by weight of an environment-friendly solvent. The component B comprises the following components in percentage by weight: 42%-44% of second bio-based polyol, 10%-12% of a difunctional flame retardant, 32%-34% of a carbon source flame retardant, 3%-5% of graphene dispersion slurry, 10%-12% of filler and 1%-2% of a grinding aid. Related preparation methods are also provided. The graphene-modified fireproof anticorrosive paint has efficient fireproof and anticorrosive dual core properties, and is excellent in physical and chemical comprehensive performance, good in environmental compatibility, simple in preparation process route, simple and convenient to prepare, easy to operate and low in preparation cost.

This application relates to the technical field of decolorizing agents, and specifically discloses a decolorizing agent for sulfuric acid production. A decolorizing agent for sulfuric acid production comprises the following raw materials in parts by weight: 15-30 parts of enhanced magnetic mesoporous carbon; 5-15 parts of nano-silica; 8-20 parts of polyvinylidene fluoride; 1-5 parts of aluminum sulfate; 1-5 parts of ferrous sulfate; 1-3 parts of triphenyl phosphite; 3-7 parts of dispersant; the enhanced magnetic mesoporous carbon is obtained by modifying magnetic mesoporous carbon with dopamine. The decolorizing agent of this application has a good decolorizing effect through the synergistic effect of nano-silica, polyvinylidene fluoride, aluminum sulfate, ferrous sulfate, triphenyl phosphite and dispersant with the enhanced magnetic mesoporous carbon, and also has a stable decolorizing effect under high temperature conditions.