55 results about "Triphenyl phosphite" patented technology

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 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 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 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 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 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 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.

The invention relates to the technical field of functional polymer materials, in particular to conductive hydrogel and a preparation method thereof.Polyvinyl alcohol-sodium carboxymethyl cellulose serves as a composite polymer matrix, silver elementary substance particles and MXene are matched to construct a point-sheet synergistic conductive network, and the conductive hydrogel is prepared; the interface compatibility is optimized by virtue of a triphenyl phosphite, sodium tetraborate and sodium silicate composite modifier, and the conductivity and mechanical properties are synergistically improved in combination with a multi-stage composite filler consisting of epoxy modified nano silicon dioxide / silver particles, modified MXene and modified montmorillonite; meanwhile, through an integrated process of low-temperature 3D printing precise forming, freezing-unfreezing circulation cross-linking strengthening structure and segmented vacuum drying for regulating and controlling moisture stability, the problem that the conductivity and the mechanical property of traditional conductive hydrogel are difficult to consider at the same time is solved; the method is suitable for the fields of flexible sensors, electronic skin, biomedical signal acquisition electrodes, wearable flexible electronic equipment and the like, and has a wide application prospect.

This application provides a lithium-manganese battery electrolyte, its preparation method, and its application, belonging to the field of battery electrolyte technology. The electrolyte comprises lithium salt, organic solvent, and additives. The additives include one or more of the following: organosilicon source, toluenesulfonyl isocyanate, 1,3-propanesulfonate lactone, 1,4-butanesulfonate lactone, and triphenyl phosphite. This application improves the long-term storage stability and compatibility with elemental lithium of the electrolyte, forms a relatively dense SEI film on the positive and negative electrode surfaces, reduces side reactions during storage, improves the long-term storage performance of the battery, reduces the battery's self-discharge rate, and is a more suitable electrolyte for the characteristics of the lithium-manganese battery system and the operating environment, thus extending the battery's storage life.

The invention relates to a synthetic method of methyl diphenyl phosphate, which comprises the following steps: mixing triphenyl phosphite, trimethyl phosphite, phenate and metal oxide, and carrying out transesterification to obtain the methyl diphenyl phosphate. According to the preparation method provided by the invention, by adopting the compound catalyst, the use of alkyl halide can be avoided, the reaction temperature is relatively mild, the purity is not lower than that in the prior art, and the problems of more byproducts, higher reaction temperature and safety risk caused by taking alkyl halide as a catalyst in the existing preparation method are solved.

The application discloses a triphenyl phosphite filter press mechanism and a use method thereof, which comprises a filter press body and filter plates capable of filtering impurities generated in triphenyl phosphite production and arranged in a linear array at a filtering end of the filter press body; an air drying machine capable of drying the impurities between the filter plates is arranged at a gas conveying end of the filter press body; and a dispersion mechanism capable of dispersing the filter plates at equal intervals is further arranged; the dispersion mechanism comprises a plurality of shear-shaped rods connected in sequence; an unfolding plate capable of pushing the filter plates is arranged at the intersection position of two adjacent shear-shaped rods; a pushing mechanism capable of pushing the unfolding plate to insert into the gap between two adjacent filter plates is arranged at a pushing end of the filter press body; and in use, the traditional method of removing the impurities from the filter plates one by one is abandoned, and all the filter plates are separated at the same time, so that the efficiency is greatly improved.

The invention belongs to the technical field of lithium ion batteries, and provides an aluminum alkoxide-phosphate / phosphite electrolyte as well as a preparation method and application thereof. The aluminum alkoxide-phosphate ester / phosphite ester electrolyte comprises aluminum triethoxide, a phosphate ester / phosphite ester compound, an electrolyte solute and a non-aqueous solvent; the phosphate ester / phosphite ester compound is trimethyl phosphate, triethyl phosphate, triisobutyl phosphate, triphenyl phosphate, tripropargyl phosphate, tris (trimethylsilyl) phosphate, dimethyl methylphosphonate, diethyl ethylphosphonate, trimethyl phosphite, triethyl phosphite and triisopropyl phosphite, and the solvent is a solvent. The catalyst is one or more of triphenyl phosphite and tri (trimethylsilyl) phosphite. The electrolyte has good thermal stability and flame retardance under high voltage, and the safety of the battery is greatly improved; in addition, the electrolyte additive composition can inhibit the corrosion of the aluminum current collector, so that the side effect of the corrosion of the current collector on the battery is reduced.

The present invention relates to the technical field of fuel cells and specifically discloses a direct methanol fuel cell membrane electrode complex and a preparation method thereof. The preparation method comprises dissolving 4,4'-(9-fluorenylene)diphenylamine, terephthalic acid, 2,5-diaminobenzenesulfonic acid and anhydrous LiCl in N-methylpyrrolidone, pyridine and triphenyl phosphite, heating and stirring under an argon atmosphere, precipitating, washing and drying to obtain polyamide, preparing a proton exchange membrane, and coating an anode catalyst and a cathode catalyst on both sides of the proton exchange membrane to obtain a catalyst-loaded proton exchange membrane; hot-pressing the anode diffusion layer, the catalyst-loaded proton exchange membrane and the cathode diffusion layer to obtain a membrane electrode complex, and stacking the anode diffusion layer and the cathode diffusion layer to obtain a battery membrane electrode complex. The membrane electrode complex of the direct methanol fuel cell prepared by the method has low methanol permeability and can adapt to higher concentrations of methanol. At the same time, the preparation process is simple, and the time cost of testing is reduced.

The invention relates to a modification method of lactic acid copolymerization modified PBAT, which comprises the following steps: mixing terephthalic acid and 1, 4-butanediol, adding tetrabutyl titanate, and carrying out esterification reaction to obtain a prepolymer A; mixing adipic acid and 1, 4-butanediol, adding tetrabutyl titanate and triphenyl phosphite, and carrying out esterification reaction to obtain a prepolymer B; carrying out polycondensation on an L-lactic acid aqueous solution in the presence of stannous octoate to obtain a prepolymer C; 2, 5-furandicarboxylic acid and 1, 4-butanediol are mixed, tetrabutyl titanate is added, an esterification reaction is performed, and a prepolymer D is obtained; and mixing the prepolymers, and carrying out polycondensation under the action of a composite catalyst to obtain the lactic acid copolymerization modified PBAT. The invention aims to provide the modification method of the lactic acid copolymerization modified PBAT, so that the melting point, the thermal decomposition temperature, the mechanical property and the elastic modulus of the lactic acid copolymerization modified PBAT are improved, and meanwhile, the CO2 barrier property, the O2 barrier property and the water vapor barrier property are improved.

The invention discloses photocuring 3D printing copper slurry and a preparation method and application thereof. Relates to the technical field of 3D printing. The photocuring 3D printing copper paste comprises the following components: urethane acrylate; copper powder; a photoinitiator; a thermal polymerization inhibitor; an anti-copper agent; the copper-resistant agent is selected from at least one of benzotriazole, a benzotriazole derivative, 3-mercaptopropionic acid, triphenyl phosphate, triphenyl phosphate and trimethyl phosphate; the copper powder is composed of copper particles with the average particle size of 0.3-1 micron, 3-5 microns and 10-20 microns. The photocuring 3D printing copper paste has the advantages of being good in stability, free of spontaneous curing, long in quality guarantee period, high in forming precision and the like, and obvious sedimentation and self-curing phenomena are achieved when the photocuring 3D printing copper paste is stored for 60 days under the normal-temperature dark condition; and no obvious sedimentation and self-curing phenomena exist after the coating is stored for 180 days under the low-temperature dark condition of 0-4 DEG C.

The invention relates to the technical field of cellulose modification and functional materials, in particular to high-temperature-resistant carboxymethyl cellulose and a preparation method thereof.The high-temperature-resistant carboxymethyl cellulose is prepared by taking aminopropylated cellulose as a base material and matching with a composite modifier composed of triphenyl phosphate, sodium tetraborate and sodium silicate according to a specific proportion; the preparation method comprises the following steps of: preparing a modified SiO2 / montmorillonite and a composite filler compounded from epoxy modified nano SiO2 / montmorillonite, modified SiO2 and modified montmorillonite, combining an alkalization-etherification-crosslinking process of adding sodium hydroxide and sodium chloroacetate step by step, and accurately controlling parameters such as reaction temperature, water content, rotating speed and sectional temperature control drying; the core problem that a traditional product is difficult to keep stable use performance for a long time in a high-temperature environment after being modified is effectively solved, and the product is high in initial viscosity and low in moisture content, can be widely applied to occasions needing high-temperature processing or use such as oil exploitation, high-temperature building materials, food processing and industrial coatings, and has wide application prospects.

The present invention discloses a method for designing a triphenyl phosphite production system, comprising the following steps: establishing a mathematical model based on triphenyl phosphite production-related data, the mathematical model comprising a material balance model and an energy balance model. For the material balance model, the following equation is obtained: dF1 / dt = dP / dt + dR1 / dt + dL / dt; in this formula, dF1 / dt is the rate of change of the flow rate of phosphoric acid entering the reactor, and dP / dt, dR1 / dt, and dL / dt are the rates of change of the flow rate of triphenyl phosphite generated, unreacted and recovered phosphoric acid, and phosphoric acid converted into other byproducts, respectively. By constructing the material balance model and the energy balance model and using these models to predict the production process, the present invention can effectively optimize the input flow rate of raw materials and energy input, thereby increasing the yield of triphenyl phosphite.