29 results about "Phenyl phosphate" patented technology

The application relates to the technical field of adhesives, and discloses a low-VOC flame-retardant double-faced adhesive for automobile interiors and a preparation method thereof. In the application, tetramethyl ethylene (epoxy propyl ammonium chloride) and bis (4-aminophenyl) -phenyl phosphate are reacted to obtain a cationic flame retardant, which is then added into a water-based acrylic resin emulsion to obtain a flame-retardant water-based acrylic resin adhesive and a flame-retardant double-faced adhesive. The cationic groups in the cationic flame retardant and the sodium carboxylate anions in the water-based acrylic resin form electrostatic force, the crosslinking degree between acrylic resin molecular chains is improved, the cohesion is increased, and the bonding performance and tensile shear strength of the adhesive are improved. The cationic flame retardant contains a triphenyl phosphate flame-retardant structure, has condensed-phase flame-retardant effect, improves the limiting oxygen index and the flame-retardant performance of the adhesive, and has good practical application in adhesives for new energy vehicles, double-faced adhesives and the like.

The invention relates to the technical field of building materials, and provides a sound-insulation fireproof building material and a preparation method thereof. The sound-insulation and fireproof building material is prepared from, by weight, 100 parts of flame-retardant wood fiber, 15-30 parts of adhesive, 5-6 parts of hollow glass beads and 1-3 parts of waterproof agent, a preparation method of the flame-retardant wood fiber comprises the following steps that a flame retardant is dispersed in a solvent, wood fiber is added, mixing and drying are conducted, and the flame-retardant wood fiber is obtained; and the flame retardant comprises a 2, 4-dihydroxy-5-pyrimidine boric acid and / or a phenyl phosphate compound. By means of the technical scheme, the problem that in the prior art, sound-proof and fireproof building materials are poor in flame retardant property is solved.

The invention discloses a light internal partition wall board and a preparation process thereof, and belongs to the technical field of building materials. The light internal partition wall board is prepared from the following main raw material components in parts by mass: 500 to 700 parts of slag washed sand, 1400 to 1600 parts of cement, 40 to 50 parts of flame-retardant light filler, 10 to 24 parts of flame retardant, 15 to 60 parts of air entraining agent, 8 to 24 parts of water reducing agent and 330 to 750 parts of water. Wherein the flame-retardant light filler is obtained by sequentially reacting expanded polystyrene particles with bis (pinacolato) diboron, 4-bromo-3-isopropyl benzoic acid and triisopropyl phenyl phosphate; the water reducing agent is prepared from polyvinyl alcohol; the prepared light internal partition wall board is high in compressive strength, good in fire resistance and light in mass.

The invention discloses a multifunctional heating reaction kettle for isopropyl phenyl phosphate production, and belongs to the technical field of reaction kettles.The multifunctional heating reaction kettle comprises a kettle body, a discharging pipe is arranged in the middle of the lower end of the kettle body, heating pipes are installed on the two sides of the lower end in the kettle body, a kettle cover is arranged at the upper end of the kettle body, and a feeding pipe is arranged on the rear side of the kettle cover; by arranging the stirring assembly, a first motor is started to drive a main rod to rotate clockwise during heating, and the main rod rotates to drive an auxiliary rod to rotate anticlockwise through a first straight gear and a second straight gear; the main rod and the auxiliary rod rotate in opposite directions, isopropyl phenyl phosphate materials in the kettle body are stirred through the stirring plates, convection is formed, meanwhile, the main rod and the auxiliary rod rotate to drive the spiral blades to rotate so that the isopropyl phenyl phosphate materials can flow in the axial direction, the stirring effect on the materials in the kettle body is better through the stirring assembly, and the stirring effect is better. Therefore, the material heating speed is higher, and the working efficiency of the device is improved.

The invention relates to a preparation method of a plastic bone grafting material and the plastic bone grafting material.The preparation method comprises the following steps that a, phenyl phosphate lithium salt is dissolved in a phosphoric acid buffer salt solution to obtain a mixed solution, and Ge MA is dissolved in the mixed solution to obtain a Ge MA gel solution; b, bone meal and the Ge MA gel solution are subjected to a cross-linking effect, so that the bone meal and the Ge MA gel solution are fully mixed, then light source irradiation is conducted, the bone meal hydrogel bone grafting material is obtained, and the particle size of the bone meal is 0.25-0.5 mm. According to the preparation method of the plastic bone grafting material, provided by the invention, the bone meal and the Ge MA gel solution are subjected to cross-linking and then subjected to light source irradiation, so that the bone meal and the hydrogel are uniformly mixed, the compatibility of an organic phase and a bone meal particle interface is good, and the prepared plastic bone grafting material is relatively high in plasticity and good in osteoinductivity; and the cell adhesion rate is high.

Electrolyte formulations for lithium-ion batteries are disclosed that enable high-voltage operation, improved cycle life, reduced impedance, and enhanced safety. The formulations comprise an aprotic organic solvent, a lithium salt, and an epoxide functionalized organic compound, and may further include additives such as organosulfur compounds, alkyl nitriles, fluorinated aliphatic esters, cyclic carbonates, partially fluorinated phenyl phosphate esters, and fluorinated cyclic phosphazenes. These components synergistically stabilize the cathode electrolyte interface (CEI), mitigate oxidative decomposition at elevated voltages, and impart flame-retardant properties. Electrochemical energy storage devices incorporating these formulations exhibit superior performance under high-voltage and high-temperature conditions, making them suitable for applications such as electric vehicles, aerospace systems, and grid storage.

The invention relates to the technical field of nylon, and discloses a high-strength and high-modulus nylon fiber and a preparation method thereof.The high-strength and high-modulus nylon fiber is obtained by melt extrusion, melt spinning, winding, drafting and heat setting of nylon resin and a polyamide phosphate flame retardant according to the proportion of 100 g: (1-8) g. The polyamide phosphate flame retardant contains a large number of bis-spiro phenyl phosphate flame-retardant structures and has excellent flame-retardant performance, magnesium hydroxide, aluminum hydroxide, montmorillonite and other inorganic flame retardants do not need to be added, the molecular main chain of the flame retardant contains amido bonds, the end position of the flame retardant also contains a large number of amido bonds, strong hydrogen bond interaction is formed between the flame retardant and nylon, and therefore the flame retardant performance is improved. A proper amount of flame retardant is added, so that a certain reinforcing effect is achieved on the nylon fiber, the breaking strength and the initial modulus are obviously improved, and the practical application of the nylon fiber in the aspects of fireproof suits, refractory materials and the like is expanded.

The present application relates to the technical field of hydraulic oil, and discloses a fire-retardant hydraulic oil, wherein the hydraulic oil comprises base oil, antioxidant, copper corrosion inhibitor, rust inhibitor, antifoaming agent, demulsifier and hydrolysis inhibitor; wherein the base oil is selected from at least one of mixture A, mixture B and mixture C; wherein the mixture A is selected from a compound as shown in general formula (I): wherein X is selected from any one of, and the mixture B and the mixture C both comprise (4-tert-butylphenyl) diphenyl phosphate, bis(4-tert-butylphenyl) phenyl phosphate, tris(4-tert-butylphenyl) phosphate and triphenyl phosphate. The hydraulic oil has excellent antioxidant, corrosion / rust resistance, emulsion resistance, hydrolysis resistance, antifoaming performance and accelerated aging resistance, slows down the deterioration speed of triaryl phosphate fire-retardant hydraulic oil, and prolongs the service life of the fire-retardant oil.

The invention relates to a low-density flame-retardant silane modified sealant and a preparation method thereof, and belongs to the technical field of high polymer materials. The sealant comprises the following components: an alkoxy-terminated silyl-organic phosphorus-silicon hybrid polyurethane prepolymer with a specific structure, a bis (triethoxysilylpropyl) phenyl phosphate reactive flame-retardant plasticizer, a flame-retardant filler, hollow glass beads, fumed silica, dipentaerythritol and the like. According to the invention, a phosphorus-based flame-retardant unit is embedded into a polymer main chain to realize intrinsic flame retardance, a terminal alkoxy silicon group of a reactive plasticizer is utilized to realize functional persistent bonding, and a composite filler system is constructed to realize synergistic interaction. The prepared sealant has a high flame-retardant grade, excellent mechanical properties, elastic recovery rate and long-term durability while the density is remarkably reduced, and the technical problems that a traditional flame-retardant sealant is large in density and poor in performance are solved.

The application discloses a phosphate ester fire-resistant oil composition with isomer directional regulation and a preparation method thereof, and particularly relates to the technical field of hydraulic oil, which comprises a directional regulation type tri (dimethylphenyl) phosphate ester, a directional regulation type tertiary butyl phenyl phosphate ester, a chlorine capturing agent, a composite antioxidant, an antifoaming agent and a metal deactivator. The product has an ultralow chlorine content, excellent antifoaming property and air release property, and the comprehensive performance meets the requirements of the electro-hydraulic regulating system of a power plant steam turbine, through isomer directional screening and para-substitution regulation, combined with catalyst-free esterification and complex chlorine capturing.

The invention discloses a bio-based polyurethane flame-retardant protective material and application thereof in safety helmets, and belongs to the technical field of safety helmet materials.The bio-based polyurethane flame-retardant protective material is prepared from, by weight, 95-110 parts of modified bio-based PN flame-retardant polyester diol, 10-20 parts of a chain extender, 0.8-1.5 parts of a surfactant and 2-6 parts of a water foaming agent, 60 to 90 parts of diisocyanate, 0.1 to 0.5 part of an organic tin catalyst and 0.2 to 0.5 part of an organic amine catalyst; the modified bio-based PN flame-retardant polyester diol is prepared by grafting PN flame-retardant components including melamine, diethyl phenyl phosphate and benzotriazole to a biological matrix castor oil; the bio-based polyurethane flame-retardant protective material provided by the invention has excellent flame retardancy and impact resistance, and can be used in the preparation of safety helmets.

The invention relates to the technical field of adhesives, and discloses a low-VOC flame-retardant double faced adhesive tape for automotive trim and a preparation method thereof.The preparation method comprises the steps that tetramethyl ethylene bis (epoxypropyl ammonium chloride) and bis (4-aminophenyl)-phenyl phosphate react to obtain a cationic flame retardant, then the cationic flame retardant is added into water-based acrylic resin emulsion, and the water-based acrylic resin emulsion is added into the cationic flame retardant to obtain the low-VOC flame-retardant double faced adhesive tape for automotive trim. The flame-retardant water-based acrylic resin adhesive and the flame-retardant double-faced adhesive tape are obtained. Cationic groups in the cationic flame retardant and sodium carboxylate anions in the water-based acrylic resin form electrostatic acting force, so that the crosslinking degree between molecular chains of the acrylic resin is improved, the cohesion is increased, and the adhesive property and the tensile shear strength of the adhesive are favorably improved. The cationic flame retardant contains a triphenyl phosphate flame retardant structure, has a condensed phase flame retardant effect, improves the limit oxygen index and flame retardant property of the adhesive, and has good practical application in the aspects of adhesives for new energy automobiles, double faced adhesive tapes and the like.

The invention discloses a PBT (polybutylene terephthalate) material for secondary coating of an optical communication micro cable and a preparation method of the PBT material. The PBT material is prepared from the following components in percentage by weight: 98.5-99.6% of PBT resin; 0.2%-0.8% of a crystallizing agent, wherein the crystallizing agent is an organic acid salt or nano clay or an inorganic mineral; 0.2%-0.7% of a lubricant; the crystallizing agent is one or more of sodium benzoate or sodium phenyl phosphate or sodium stearate or talcum powder or organic modified montmorillonite. According to the preparation method of the PBT material, the crystallization nucleus is added at a low-temperature stage, so that the crystallization efficiency of the PBT resin is improved from 60% to 90% or above, the performance of the material is improved, rapid shaping of the material in micro-cable high-speed extrusion production is ensured due to the high crystallization speed, and the problems that a thin-wall pipe is difficult to form and easy to deform are solved; the adding amount of the crystallizing agent is strictly controlled, and the excess length of the optical fiber is accurately controlled within 0.02%-0.04%.

The application relates to the technical field of ceramic substrates, and discloses high-surface-finish alumina multilayer ceramic substrates and a preparation method thereof. The high-surface-finish alumina multilayer ceramic substrate comprises the following components by weight: 80-90 parts of alumina, 4-6 parts of a sintering aid, 3-4 parts of a dispersing aid, 6-8 parts of a binder and 75-85 parts of a solvent; the dispersing aid comprises triethyl phosphate, fumed silica and a phenyl phosphate compound. The above technical scheme solves the problem of poor surface finish of alumina multilayer ceramic substrates in the related art.

This invention discloses a bio-based polyurethane flame-retardant protective material and its application in safety helmets, belonging to the technical field of safety helmet materials. The bio-based polyurethane flame-retardant protective material of this invention comprises the following components by weight: 95-110 parts of modified bio-based PN flame-retardant polyester diol, 10-20 parts of chain extender, 0.8-1.5 parts of surfactant, 2-6 parts of water-based foaming agent, 60-90 parts of diisocyanate, 0.1-0.5 parts of organotin catalyst, and 0.2-0.5 parts of organic amine catalyst. The modified bio-based PN flame-retardant polyester diol is obtained by grafting PN flame-retardant components melamine, diethyl phenyl phosphate, and benzotriazole onto a bio-based castor oil matrix. The bio-based polyurethane flame-retardant protective material provided by this invention has excellent flame-retardant properties and impact resistance, and can be used in the manufacture of safety helmets.

The invention discloses a high-strength full-biodegradable agricultural mulching film and a preparation method thereof, and relates to the field of agricultural mulching films. When the high-strength full-biodegradable agricultural mulching film is prepared, corn starch hydroxyl is oxidized and then reacts with dopamine hydrochloride, and modified corn starch is prepared; the preparation method comprises the following steps: polymerizing urea and formaldehyde, blocking by using 4-vinyl phenyl phosphate monoethyl ester, reacting with modified corn starch, preparing a film, and performing surface treatment by using sodium iminodiacetate monohydrate, thereby obtaining the high-strength full-biodegradable agricultural mulching film. The high-strength full-biodegradable agricultural mulching film prepared by the invention has the effects of photo-thermal conversion, adsorption of heavy metal ions in soil and degradation to produce fertilizers.

The invention relates to the technical field of ceramic substrates, and provides an aluminum oxide multilayer ceramic substrate with high surface smoothness and a preparation method thereof. The aluminum oxide multilayer ceramic substrate with high surface smoothness comprises the following raw materials in parts by weight: 80-90 parts of aluminum oxide, 4-6 parts of a sintering aid, 3-4 parts of a dispersing aid, 6-8 parts of a binder and 75-85 parts of a solvent, the dispersing aid comprises triethyl phosphate, fumed silica and a phenyl phosphate compound. According to the technical scheme, the problem of poor surface smoothness of the aluminum oxide multilayer ceramic substrate in the prior art is solved.

The invention belongs to the technical field of biodegradable high polymer materials, and particularly discloses a novel flame retardant and a preparation method of a polyhydroxybutyrate-based composite material. The phenyl phosphite flame retardant provided by the invention is synthesized by a one-pot method, and the preparation process is simpler than that of other phosphorus-nitrogen flame retardants. When the phenyl phosphite flame retardant is applied to the PHB-based composite material, the flame retardant property of the PHB-based composite material can be improved, and the toughness of the PHB-based composite material cannot be excessively damaged. The prepared toughened flame-retardant PHB-based composite material has good toughness and flame retardance, the elongation at break is improved by 8 times compared with pure PHB, the flame retardance test can reach the V-2 level, the difficulty in PHB application is solved, and the application scene of PHB is expanded.

The invention discloses a corrosion-resistant unsaturated polyester resin composite material and a preparation method thereof, and relates to the technical field of resin materials. The method comprises the following steps: firstly, treating carbon fiber cloth through polyamine functionalized graphene interface modification liquid to prepare polyamine graphene modified oxidized carbon fiber cloth; mixing unsaturated polyester resin with styrene, the modified corrosion-resistant cross-linking agent, isopropyl phenyl phosphate and fumed silica, and adding cobalt iso-octoate to prepare modified reinforced unsaturated polyester resin; and finally, the target composite material is prepared through layer laying compounding, stepped pressurization curing, post-heat treatment and surface hole sealing treatment. By means of interface synergistic modification, polyfunctional group cross-linking agent customization and whole-process technology optimization, the problems that a traditional material is weak in interface bonding, insufficient in corrosion resistance and difficult to consider performance are solved, mechanical performance and corrosion resistance are synergistically improved, and the material can be widely applied to severe working conditions such as chemical engineering and ocean engineering.

The invention relates to the technical field of high polymer materials, and discloses a corona-resistant polyimide film and a preparation method thereof.The preparation method comprises the following steps that N, N-dimethylformamide is added into a dry reactor, 4, 4 '-diaminodiphenyl ether is added into the reactor and stirred to be dissolved, pyromellitic dianhydride is slowly added and added 3-5 times at the interval of 30-60 min, stirring is carried out for 2-3 h, and then the film is obtained; continuously stirring and reacting after finishing feeding to obtain a polyamide acid pre-polymerized solution; aminated fluorine-containing phenyl phosphate, fluorine-containing arylamine modified silicon nitride and an antioxidant 1010 are added into the polyamide acid prepolymer solution, ultrasonic treatment and stirring are performed, and a uniform polyamide acid glue solution is obtained; pouring the glue solution on a rolling steel belt, uniformly paving the glue solution on a steel plate according to the required thickness by utilizing a film paving cutter, and paving a film at a constant speed; and feeding the steel plate paved with the glue solution into a preheating furnace, carrying out dehydration cyclization treatment on the steel plate, and then carrying out thermal imidization and curing shaping to obtain the corona-resistant polyimide film.

The application discloses a kind of anti-freezing polyurethane sealant special for low temperature area, it includes following weight parts of each component: polypropylene glycol 25-35 parts, polypropylene glycol 15-25 parts, hexamethylene diisocyanate 10-15 parts, phenyl methyl phenyl phosphate 15-20 parts, filler 10-14 parts, curing agent 1.5-2.5 parts, catalyst 1-3 parts, tetrafluoroethanol 4-8 parts, 2-isopropyl-3-oxazolidine ethanol 1.5-2 parts, air entraining agent 6-8 parts and aluminium hydroxide modified nano calcium carbonate 2-3.5 parts.The application has the advantages that the anti-freezing performance is good, and the bonding strength is high.The phenyl methyl phenyl phosphate is used as plasticizer, which improves the low temperature resistance and saponification resistance of polyurethane adhesive product.The addition of air entraining agent can improve the flowability and cohesiveness of sealant, and tetrafluoroethanol is used for sealant with high anti-freezing requirement, which can significantly improve the low temperature resistance and anti-freezing performance of sealing material.

The application discloses an anti-aging triacetate cellulose optical film and a preparation method thereof, and belongs to the technical field of optical films.The anti-aging triacetate cellulose optical film comprises the following raw materials in parts by weight: 80-90 parts of triacetate cellulose, 5-10 parts of a plasticizer, 200-300 parts of a main solvent, 20-30 parts of an auxiliary solvent, 0.1-0.5 parts of a matting agent and 1-2 parts of an ultraviolet absorber; the plasticizer comprises a phenyl phosphate compound and a rosin acid modified epoxy soybean oil; the rosin acid modified epoxy soybean oil is an esterification product obtained through ring-opening esterification reaction of carboxyl groups of rosin acid and epoxy groups of epoxy soybean oil; and the anti-aging triacetate cellulose optical film further comprises 2-4 parts by weight of (1,3,5-triazine-2,4,6-triazinyl) tris(phenyl-4,1-diyl)] triboronic acid. The optical film prepared by the application has good optical performance, mechanical properties and long-term anti-aging stability, and is suitable for high-end liquid crystal display fields.

The invention provides a chip photoresist cleaning solution as well as a preparation method and application thereof. The chip photoresist cleaning solution comprises the following components in parts by weight: 1-5 parts of quaternary ammonium hydroxide; 1 to 15 parts of alkanolamine; 50 to 90 parts of sulfoxide; 0.5-5 parts of a corrosion inhibitor; the corrosion inhibitor is a mixture of a phenyl phosphate derivative and a fluorinated dendritic polymer. The invention further discloses a preparation method of the chip photoresist cleaning solution and application of the chip photoresist cleaning solution in the field of chip photoresist cleaning. According to the chip photoresist cleaning solution, efficient cleaning can be achieved only through a pure soaking process, ultrasonic assistance is not needed, and almost no corrosion is caused to a chip. The chip photoresist cleaning solution disclosed by the invention has good application prospects and large-scale industrial popularization potential in the field of photoresist cleaning.

The invention discloses a preparation method of tert-butylated phenyl phosphate with high purity and low triphenyl phosphate. The preparation method specifically comprises the following steps: carrying out an esterification reaction on phosphorus oxychloride and p-tert-butylphenol in the presence of a Lewis catalyst through gradient heating; and after the reaction is finished, carrying out reduced pressure distillation and molecular distillation to remove phosphorus oxychloride, and adding phenol for blocking to obtain the tert-butylated phenyl phosphate. By adopting gradient heating, the reaction of phosphorus oxychloride is more thorough under mild conditions, the conversion rate of raw materials is improved, the loss of phosphorus oxychloride can be effectively prevented, and the safety and stability of the process are ensured; phosphorus oxychloride is removed through reduced pressure distillation and molecular distillation together, the residual quantity is greatly reduced, so that the content of triphenyl phosphate in tert-butyl phosphate is lower than 0.1%, the product purity is greatly improved, the method is stable in process and simple to operate, special equipment is not needed, consumption is saved, the quality yield of the product in the batch production process is stable, and the method is suitable for industrial production. And subsequent high-end products can be stably generated, and the method is suitable for popularization and application.

According to the organic-inorganic composite small-molecule self-assembly hole transport material and the battery, different types of parent nuclei are matched with alkyl or phenyl phosphate metal salt groups, the molecular structure is deposited into a film in a single molecule mode in the high-temperature evaporation process and cannot be polymerized into a polymer, and the organic-inorganic composite small-molecule self-assembly hole transport material is suitable for industrial large-scale preparation; various types of molecular structural formulas are disclosed, more directions are provided for industry development, the industry development is accelerated, the bonding force of a PAH monomolecular layer and a substrate is provided through the bonding effect of a dehydrogenated acid radical group and an oxide buffer layer in the molecular structure, a substituent group on a PAH benzene ring has good perovskite interface passivation capacity, and the perovskite performance is improved. Diffusion migration of inorganic metal ions provides doping of a perovskite interface, energy level regulation and stability improvement of the interface are realized, and the formed hole material has high carrier mobility.

The present application relates to a series of 2'-deoxy-2',2'-difluoro cytidine (2',2'-difluoro 2'-deoxycytidine, dFdC, gemcitabine) Protide and antibody specific to tumor antigen form conjugates and its preparation method and application in the field of treatment. Further, the present application provides a series of antibody-linker-2'-deoxy-2',2'-difluoro cytidine Protide conjugate to form antibody drug conjugate (ADC). The structural features are mainly in the 5'-phosphate phenylamide amino acid ester corresponding group in the structure of 2'-deoxy-2',2'-difluoro cytidine and the linker for linkage, and then coupled with the corresponding tumor specific antibody to form ADC. These ADCs target antigens on tumor cells, endocytose into tumor cells, release the drug 2'-deoxy-2',2'-difluoro cytidine monophosphate, kill tumor cells, and cause tumor cell apoptosis.

The invention relates to the technical field of metallized films, in particular to a breakdown-resistant metallized film and a preparation process thereof, and the breakdown-resistant metallized film comprises a modified polypropylene film and a metal layer located on the surface of the modified polypropylene film; wherein the modified polypropylene film is prepared from the following components in percentage by mass: 0.01-0.1% of 2, 2 '-methylene-bis (4, 6-di-tert-butyl phenyl phosphate) aluminum phosphate, 0.01-0.1% of a coupling agent, 0.01-0.1% of a coupling agent, 0.01-0.1% of an antioxidant, 0.01-0.1% of a lubricant and the balance The mass fraction of the 1, 3: 2, 4-bis (3, 4-dimethyl benzal)-D-sorbitol is 0.05-0.25, and the mass fraction of the 1, 3: 2, 4-bis (3, 4-dimethyl benzal)-D The mass fraction of the long-chain branched polypropylene is 99.65 to 99.94. Due to the flexibility of the long-chain branches, the sphere density of the long-chain branched polypropylene is increased. Wherein the unit cell size of the NA-21 matrix and the unit cell size of the long-chain branched polypropylene melt can be well matched, so that the initial nucleation density of the modified film is higher. As the crystallinity is reduced, the dielectric constant and loss of the long-chain branched polypropylene are relatively large, and the dielectric constant of the modified film is reduced. By introducing a long-chain branch chain and adding a nucleating agent, the conductivity loss of the modified film is reduced, and the breakdown strength and the energy storage density are improved.

The invention relates to the technical field of battery device preparation, and discloses a composite hole transport material and application thereof. The composite hole transport material comprises a carbazole phosphate material and a phenyl phosphate material. The phosphoric acid carbazole material is (2-(9H-carbazole-9-yl) ethyl) phosphonic acid; the phenyl phosphate material is triphenyl phosphate. The composite hole transport material can be used as a hole transport layer to be applied to organic solar cells and perovskite solar cells. When the composite hole transport material provided by the invention is used as a hole transport layer of a solar cell device, the energy conversion efficiency, preparation repeatability (yield) and thermal stability of the device can be effectively improved. When the material is used for preparing a flexible solar cell device, the bending stability of the device can be obviously improved. Due to the advantage of high concentration resistance, excellent device performance can be obtained when the material is applied to a large-area solar cell device.