5650results about How to "The synthesis process is simple" patented technology

The invention relates to a graphene composite lithium ion battery anode material lithium iron phosphate and a preparation method thereof. The composite material of lithium iron phosphate and graphene is connected by interface of chemical bonding. The invention also provides the method for preparing the graphene composite lithium ion battery anode material lithium iron phosphate in an in-situ symbiosis reaction mode, and the obtained anode material has high tap density and good magnifying performance, and is suitable to be used as a anode material of a lithium ion power battery.

The present invention relates to a preparation method for a nickel-manganese-cobalt anode material of a lithium ion battery. According to the present invention, in the presence of nitrogen atmosphere, a mixed solution containing nickel iron, manganese iron and cobalt ion reacts with a precipitating agent, then processes of aging, washing, drying and the like are performed to obtain a nickel-manganese-cobalt hydroxide precursor, the synthesized precursor material has spherical morphology, ideal particle size distribution and high tap density; the precursor, a lithium compound and a doped compound are mixed, then the sintering processing is performed for twice to prepare the nickel-manganese-cobalt three-element composite anode material. The method has characteristics of simple synthesis process, easy process controlling, low energy consumption, high efficiency and low cost, and is applicable for the industrial production; the prepared precursor material has characteristics of spherical morphology, uniform particle distribution and high tap density; the discharge capacity of the battery is improved through doping the metals; the cycle performance of the battery is stable.

The invention relates to self-healing polyurethane resin containing disulfide bond and a preparation method thereof. The polyurethane resin comprises, by weight parts, 10-30 parts of polyether or polyester polyol, 3-20 parts of polyisocyanates, 1-10 parts of chain extender containing the disulfide bond, 0.001-1 part of organic tin or tertiary amine catalyst and 50-80 parts of organic solvent. The method for preparing the self-healing polyurethane resin containing the disulfide bond comprises the steps of weighing raw materials, stirring, heating and performing dehydration for the polyether or polyester polyol under vacuum conditions, lowering the temperature to 85 DEG C or below, adding the polyisocyanates and the organic tin or tertiary amine catalyst, reacting, lowering the temperature to 50 DEG C or below, adding the organic solvent and the chain extender containing the disulfide bond, reacting and performing vacuum defoamation to obtain the self-healing polyurethane resin. The self-healing polyurethane resin heals by itself under the heating or ultraviolet (UV) light conditions, the required conditions are mild, the healing speed is high, the effect is good, the preparation method is simple and easy to control, and raw materials are goods of commercialized production and are cheap and easy to obtain.

The invention relates to a preparation method of a slow-setting polycarboxylic acid water reducing agent, which is implemented by carrying out free radical copolymerization reaction on allylsulfonate monomers, acrylic monomers, polyethylene glycol nono-methyl ether methacrylate macromonomers and maleic anhydride grafted beta-cyclodextrin macromonomers. The invention is characterized in that a beta-cyclodextrin side chain is introduced into a polycarboxylic acid main chain, so that the polycarboxylate water reducing agent has favorable slow setting property, micro air-entraining property and better fluidity. The obtained polycarboxylic acid water reducing agent has the advantages of stable product performance, strong adaptability to cement and favorable compatibility; and the cement paste fluidity is up to higher than 290mm (W / C=0.29), the water reducing rate of concrete is up to 30-40%, and the slump protection time is 3-5 hours. The preparation method provided by the invention has the characteristics of unique technique, excellent product performance and the like.

The present invention relates to a preparation method of carbon quantum dots with adjustable fluorescence colors, and belongs to the technical field of nanometer materials. According to method, citric acid or a citrate is adopted as a carbon source, a nitrogen-containing compound is adopted as a nitridation agent, hydrogen peroxide is adopted as an oxidant, a hydrothermal synthesis method is adopted to obtain an aqueous solution of carbon quantum dots emitting blue or green fluorescence under ultraviolet light excitation, reaction conditions are easily controlled, and the method is suitable for scale production. The prepared carbon quantum dots have advantages of adjustable fluorescence color, high yield, high quantum efficiency, good result reproducibility and the like, wherein the product can be directly used for tumor cell labeling and live cell imaging labeling. According to the present invention, only the one reactant is required, the raw materials are easily-available and non-toxic, the production process does not require special protection, the reaction condition is easily controlled, and the obtained carbon quantum dots have advantages of high yield, high quantum efficiency, good result reproducibility and the like; and the method has characteristics of high yield, simple preparation process, low cost, easy scale production and the like.

The invention discloses a luminescent material of a series of fluorene derivatives. A structure of the material is as shown in formula I. The material as shown in formula I is easily dissolved in an organic solvent, is good in heat stability and can be used to prepare a luminescent device in a way of fluid manufacturing procedures such as printing, instilling, coating and printing. An organic electroluminescent device prepared by coating the material has the characteristics that the power efficiency is good, the material utilization rate is high, the manufacturing cost of an OLED device is greatly decreased, and the material synthesis and purification method is simply suitable for mass production, so that the luminescent material is an ideal choice of the organic electroluminescent device luminescent material. Utilizing the organic electroluminescent diode material as a main body material or a doping material in a luminescent layer or independently as a luminescent material or a hole transmission material or an electron transmission material also falls within a protection scope (see the specification).

The invention relates to an infrared-excited oxide up-conversion luminescence piezoelectric material of a bismuth lamellar perovskite-like structure and a preparation method thereof. The up-conversion luminescence piezoelectric material has a chemical general formula of Am-1-x-RxYbyBi2BmO3M<+3>, wherein R is selected from Er<3+>, Ho<3+> and Tm<3+>, A is selected from Bi<3>, Ca<2+>, Sr<2+>, Ba<2+>, Pb<2+>, Na<+>, K<+>, La<3+> and Y<3+>, B is selected from Ti<4+>, Zr<4+>, Nb<5+>, Ta<5+>, W<6+> and Mo<6+>, m is a positive integer not smaller than 2 and not more than 8, x is not smaller than 0.000001 and not more than 0.3, and y is not smaller than 3.0 and not more than 0.6. The up-conversion luminescence piezoelectric material is prepared by adopting a solid-phase reaction method, has the characteristics of good thermal stability, good chemical stability, easiness for synthesis, high luminous intensity and adjustable color, and can be widely applied to various aspects such as three-dimensional display, infrared detection, counterfeiting prevention, solar cells and photoelectric integration, micro-electro-mechanical systems, photoelectric sensing and the like.

The invention provides an amido-containing ionic liquid used for absorbing acidic gases and a preparation method and application thereof and in particular relates to a method for absorbing acidic gases of CO2, H2S, SO2 and the like by using an amido-containing ionic liquid. The amido-containing ionic liquid comprises one or more of primary amine, secondary amine and tertiary amine, wherein positive ions of the ionic liquid are derived from organic polyamines, negative ions of the ionic liquid are derived from inorganic acid or organic acid, and the ionic liquid is prepared by mixing the organic polyamines with the inorganic acid or organic acid and then carrying out neutralization reaction through acid and alkali. The ionic liquid has the advantages of low cost, simple preparation method,strong absorbing capability and short balance time, can be used for the enriching of acidic gases, the deacidification refining of acid-containing gases of natural gas, refinery gas, methane, coal gas, synthesis gas, coke-oven gas, pyrolysis gas, smoke, motor vehicle tail gas and the like and the purification of gases under a proper space and an operating environment; meanwhile, the ionic liquid absorbing the acidic gases can release the acidic gases through pressure reduction and temperature raise, thus the absorbing capability of the ionic liquid is restored and the multiple absorption property of the ionic liquid is better.

The invention discloses a fluorine-free preparation method for a three-dimensional porous silica powder anode material of a lithium ion battery. In the method, combination reaction is performed on ordinary micron-sized silicon and magnesium particles to generate magnesium silicide, and the magnesium silicide is pyrolyzed at high temperature to form magnesium vapor and silica powder with a three-dimensional porous structure. By the fluorine-free preparation method for the three-dimensional porous silica powder anode material of the lithium ion battery, a preparation process is free from fluorine so as to avoid environmental pollutions; the material has the porous structure so as to realize the self-absorption of volume effects of the silicon particles; the specific capacity and recycling stability of the material are improved to a certain extent; and a synthesis process is simple and easy to operate, and the preparation cost of the material is low.

The invention relates to a synthetic process of a chemical substance, and particularly relates to a synthetic method for synthesizing (E)-2-[2-(6-chloro pyrimidine-4-yloxy)phenyl]-3-methoxy methacrylate and azoxystrobin; the method comprises the following steps: mixing a raw material of 3-(alpha-methoxy)methylene benzofuran-2-(3H)-ketone and potassium carbonate in a toluene solvent, cooling to 0-10 DEG C, adding sodium methoxide, reacting for 0.4-0.6 hours; adding 4,6-dichloropyrimidine and a catalyst of DABCO, reacting for 1-2 hours, filtering to remove inorganic salts, washing the filtrate with water, performing distillation to recover toluene; adding a catalyst of potassium bisulfate into the distillation residues of the above reaction, heating to 132-145 DEG C in a reduced-pressure condition for reaction; directly adding salicylonitrile to synthesize azoxystrobin or performing toluene dissolution, water washing, solvent recovery, recrystallization and filtration to obtain an intermediate. The production and synthesis of (E)-2-[2-(6-chloro pyrimidine-4-yloxy)phenyl]-3-methoxy methacrylate by the production process of the invention has high yield, and simple operations, and the used raw materials and processes are routine reagents and methods.

The invention discloses a method for preparing a cathode material of a sodium-ion battery, namely sodium vanadium fluorophosphates. The method comprises the following steps: using a vanadium source, a phosphorus source and a carbon source as main synthetic raw materials; dissolving into deionized water according to the molar ratio 1:1:1.2 of vanadium: phosphorus: carbon, heating in water bath, and continuously stirring to obtain light green pulp; after vacuum drying, grinding, then transferring into a tube furnace, preburning in an inert atmosphere at a certain temperature rise rate, cooling and then taking out to obtain black VPO4 / C precursor powder; mixing the VPO4 / C with NaF according to a stoichiometric ratio, ball-milling for 3 hours, sending into the tube furnace, then roasting in the inert atmosphere at the certain temperature rise rate, and cooling along with the furnace to obtain a positive active material NaVPO4F / C. According to the invention, cheap and easily-obtained pentavalent vanadium oxide or trivalent vanadium oxide is used as the main raw materials to prepare the sodium vanadium fluorophosphates cathode material through a sol gel activated auxiliary two-step high-temperature solid phase method, and the sodium vanadium fluorophosphates cathode material has the advantages of good stability, uniform particle size and good electrochemical performance. Meanwhile, the method has the advantages of simple synthesis process, short period and low cost and is convenient for large-scale production.

The invention discloses a method for synthesizing a water-soluble imidazoline quaternary ammonium salt corrosion inhibitor. The method is characterized by comprising the following steps of performing amidation reaction on reaction raw materials organic acid and organic amine to synthesize amide, performing amide cyclization reaction to obtain imidazolidine, and quaternizing the oil-soluble imidazolidine by using a quaternizing agent such as dimethyl phosphite to synthesize the water-soluble imidazoline quaternary ammonium salt corrosion inhibitor. Evaluation tests show that an obtained product is high in water solubility and corrosion inhibition rate.

The invention provides a method for preparing reactive fluid rubber-epoxide resin polymer, and belongs to the technical field of modified epoxide resin. The method comprises the following steps: 5 to 50 portions of reactive fluid rubber containing carboxyl or hydroxyl as a modifier, and 0.1 to 2.0 portions of catalyst are added into 100 to 200 portions of epoxide resin by weight; when the reactive fluid rubber containing the hydroxyl is used as the modifier, isocyanate or estolide with the same weight portion as the epoxide resin is required to be added; and an active group in the reactive fluid rubber reacts with an epoxide group in the epoxide resin for 2 to 6 hours at a temperature of between 100 and 180 DEG C to prepare the reactive fluid rubber-epoxide resin polymer with excellent toughness. The modified epoxide resin has improved toughness, non organic solvent is used in the whole synthesizing process, non environmental pollution is caused, the synthesizing process is simple and easily controlled, and the problem is not found in amplification experiments carried out for small amount, medium amount and large amount respectively, so that the method is applicable to industrial production.

The invention belongs to the technical field of organic luminescence materials. The gathering luminescence material of the invention contains a triphenyl thylene structure, ketone carbonyl is converted into double bonds by substituent phenyl ketone through a Wittig reaction or a Wittig-Horner reaction during synthesis, and the triphenyl thylene structure is formed and then is connected with otheraromatic base groups. The synthesis method has simple technique and easy purification, and the synthesized organic luminescence material containing the triphenyl thylene structure not only has obvious gathering induced luminescence performance, high thermal stability, high vitrifaction transformation temperature and high luminescence intensity, but also is suitable for preparing a luminescence layer material in an organic electroluminescence material component; by introducing proper base groups, and the organic luminescence material also can be used as a fluorescent probe and organic solar battery sensitizing dyestuff.

The present invention discloses a graphene quantum dot preparation method, belongs to the technical field of nanometer material preparation, and particularly relates to a graphene quantum dot preparation method. The technical scheme comprises that: a carbon material being subjected to deep oxidation is cut into graphene oxide nano-sheets, C=C bonds and C-C bonds of the graphene oxide are broken to prepare green fluorescence graphene oxide quantum dots, and a reduction or high temperature annealing method is further adopted to prepare the blue fluorescence graphene quantum dots. According to the present invention, the operations are simple, the raw materials are easy to obtain, and the prepared graphene quantum dots have characteristics of excellent monodispersity, good water solubility and strong fluorescence, and have potential application prospects in the fields of supercapacitors, lithium batteries, biological imaging, solar cells, field-effect transistors, OLEDs and the like.

The present invention relates to sensitive nanometer polymer material, and is especially nanometer N-isopropyl acrylamide aquogel with both pH and temperature sensitivity and its preparation process. The nanometer N-isopropyl acrylamide aquogel has granularity of 30-200 nm and lowest critical solution temperature (LCST) of 35-45 deg.c. The preparation process of the present invention can regulate the granularity and LCST flexibly.

The invention discloses an ester slump retaining type polycarboxylate water reducer and a preparation method thereof. The ester slump retaining type polycarboxylate water reducer is made from raw materials comprising the following components in parts by weight: 100 parts of esterified macromer solution by weight, 2-6 parts of unsaturated monomer by weight, 1.5-4 parts of unsaturated phosphate by weight, 1-4 parts of an oxidizing agent by weight, 0.9-3.5 parts of a reducing agent by weight, 1-3 parts of a chain transfer agent by weight, 108 parts of water by weight, and 20 parts of industrial sodium hydroxide solution by weight, wherein the concentration of the esterified macromer solution is 75-85%, and a solute thereof is the mixture of methoxy polyethylene glycol methacrylate, crosslinking monomers triethylene glycol dmethylacrglate and methyl methacrylate; the unsaturated monomer is methacrylic acid, acrylic acid, hydroxyethyl methylacrylate, hydroxyethyl acrylate, hydroxypropyl methacrylate or hydroxypropyl acrylate. The ester slump retaining type polycarboxylate water reducer provided by the invention has good slump retaining performance, good dispersibility, good adaptability and low cost.

The invention discloses a composite catalytic electrode for producing oxygen by electrolyzing water, and a preparation method and application thereof. The electrode expression is Ni(OH)2 / Ni3S2 / Ni, wherein a Ni(OH)2 lamina is used as an outer layer coating layer, Ni3S2 nanoparticles are used as an active substance, and Ni foam is used as a conducting substrate. The preparation method comprises the following steps: carrying out ultrasonic cleaning on a metal nickel source sequentially with deionized water, alcohol and acetone; impregnating the pretreated metal nickel source in a sulfur source water solution, adding into a high-pressure autoclave, and carrying out hydrothermal reaction at 140-200 DEG C for 1-8 hours; and cooling, taking out the sulfurized metal nickel, rinsing with deionized water, and carrying out vacuum drying. The composite electrode for electrolyzing water has ultralow water electrolysis overpotential and high current density, obviously reduces the electric power consumption, and thus, has important application in the field of water electrolysis. Meanwhile, the composite electrode synthesis method is simple, has the advantage of low cost for raw materials and synthesis, and is suitable for application in water electrolysis industry.

The invention relates to a chemical preparation method for a nitrogen-doped graphene quantum dot, belonging to the technical field of nano materials. The invention particularly relates to a preparation method for the nitrogen-doped graphene quantum dot. The method comprises the following steps: firstly, by taking graphite oxide as a carbon source and glycine as a nitrogen source, preparing a nitrogen-doped graphene sheet under a high-temperature annealing condition; then, cutting the deeply oxidized nitrogen-doped graphene sheet into an oxidized nitrogen-doped graphene nano sheet; preparing the nitrogen-doped-graphene quantum dot with super-strong blue fluorescence by way of a hydrothermal reaction. The synthetic method of the nitrogen-doped graphene quantum dot provided by the invention is simple in synthetic process, all raw materials are cheap and easy to get in the market, and the prepared nitrogen-doped graphene quantum dot is high in purity and yield, mono-dispersible and good in water solubility, has a very strong blue fluorescence performance and has a very good application prospect in the application fields of lithium batteries, micro supercapacitors, biological fluorescent labels, solar batteries and the like.

The invention relates to a triazine series oligomer and the compound method. The method has the following steps: adding solvent into cyanuric chloride, dropping alkylol amine and acid roping agent to gain substitute of cyanuric chloride; heating, dropping diamidogen and acid roping agent to gain the substitute of cyanuric chloride; adding diamidogen and acid roping agent into reaction solution, heating, pumping, washing, and drying to gain triazine series oligomer. The invention has strong charring and expanding ability, and good thermal stability. It has advantages of continuously reaction process, short reaction time, simple compounding technology, little organic solvent, and easy to recycle organic solvent.

The invention relates to a flower-like structured CuS material as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a cupric compound and a solvent, and sufficiently stirring the components at certain temperature so as to obtain a homogeneous solution; under acute stirring, slowly adding a sulfur-containing compound into the homogeneous solution, and performing temperature-keeping treatment; transferring the solution into a hydrothermal reaction kettle, and performing a sealed heating reaction at certain temperature, performing cooling till the room temperature, performing filtration and collection, washing the product, performing filtration again, performing vacuum drying, and grinding the product, thereby obtaining a black product, that is, the flower-like structured CuS material. The flower-like structured CuS material can be applied to photocatalytic degradation dye wastewater. Compared with the prior art, the flower-like structured CuS material is wide in visible light response range of CuS, and high in visible light utilization rate.

The invention relates to ferric phosphate lithium anode material and its preparing method, which relates to a cell anode material, especially to a ferric phosphate lithium anode material used in lithium ion cell second time. It provides a cell anode material and ití»s preparing method which can elevate the LiFePO4 conductivity and tap density at the same time. It is formed by ferric phosphate lithium and calcium boride (by weight rate): ferric phosphate lithium: calcium boride=100í† (1.01- 5.26). It first syntheses pure ferric phosphate lithium: it balls the ferrous salt, microcosmic salt and lithium salt by alcohol grease, heats the mixed material and uses inactive gas as preserving gas. It balls the synthesis ferric phosphate lithium anode and calcium boride, burns the mixed material and adds inactive gas as preserving gas to obtain the object product.

The invention discloses a sugar-based quaternary ammonium salt gemini surfactant, which has a general structural formula, wherein a sugar base is a glucose base; R is the long-chain alkyl of C8 to C18; X is chlorine, bromine or iodine; m is equal to 1 to 2; and n is equal to 1 to 2. A synthesis method for the surfactant is simple, comprises the steps of directly synthesizing dihalogenated glycoside and performing quaternization reaction, ensures simple synthesis process and low requirements on equipment and is suitable for industrialization. A sugar-based quaternary ammonium salt structurally has nonionic glucose hydrophilic groups and cationic bisquaternary ammonium salt hydrophilic groups. The product has the bactericidal property, antistatic behavior and hard water resistance of a cationic surfactant, relatively lower irritation, and the high performance of a gemini surfactant as the gemini surfactant, can be compounded with an anionic surfactant to realize synergism, is a multifunctional surfactant, can be widely applied to the industries of textile, papermaking, cosmetics, mining and the like, and has potential application prospect.

The invention discloses a solid phase method for synthesizing an anode material of a composite silicate (Li2-yMyFexMn1-xSiO4 / C, wherein 0<=x<=1, 0<=y<=0.02, and M is one or a plurality of transition state elements of IB-VIIIB) series, and an anode material of the composite silicate. Organic carbon source is added in iron source, manganese source, lithium source, silicon source and organic carbon source doped with metal compound for dispersing and ball milling for a plurality of hours, and the mixture is dried by spray, protected in a vacuum environment or by introduced non-oxide gas and sintered at the temperature of 600 to 950 DEG C for 5 to 24 hours, thus the anode material of the composite silicate with good electrochemical performance is obtained. The preparation method of the anode material has high technical adaptability and is easy to realize industrial production; and the product has extremely good electrochemical performance.

The invention relates to a process for synthesizing unsaturated polyester resin with renewable vegetable fat, which comprises generating acid ester through conducting alcoholysis reaction for vegetable oil and organic polyatomic alcohol, using as modified dihydric alcohol and being leading to the typical synthesis formulation of unsaturated polyester resin, completely replacing conventional dihydric alcohol, using for synthesizing unsaturated polyester, and then mixing with cross-linking monomer. The resin which is synthesized has excellent hue, appropriate viscosity, excellent heat stability, favorable alkali resistivity, wonderful flexible property and low shrinking rate, which is suitable for various composite material shaping technology such as hand lay-up, winding and spraying and the like. Renewable raw material of vegetable oil with cheap price is applied in the synthesis process of the invention, and the stability of product is excellent.

An efficient hyperbranched polyphosphazene flame retardant charring agent is prepared by reacting hexachlorocyclotriphosphazene with a binary compound containing two active groups. The charring agent has characteristics of good foaming charring performance, excellent flame retardant effects and good processing performance, and can be widely used in plastics, rubber, coating, adhesives, and other polymer materials. A preparing method adopts a one-pot method, and has characteristics of continuous reaction process, short reaction time and high production efficiency. By controlling the mole ratio of the hexachlorocyclotriphosphazene to the binary compound, no end-capping agent is added in the reaction process. When compared with the addition of end-capping agents in synthesis processes in triazine type charring agent patents, the synthetic process of the charring agent is simplified.

The invention relates to a phosphoric polyester fire-retardant epoxy resin composition. The compositions by mass portion of the phosphoric polyester fire-retardant epoxy resin composition are: 20 to 40 portions of epoxy resin, 5 to 20 portions of phosphoric polyester, 0 to 10 portions of other curing agent, 0.1 to 0.3 portion of curing accelerator and 30 to 70 portions of inorganic filler. The phosphoric polyester fire-retardant epoxy resin composition does not contain harmful substances such as halogen, antimony trioxide and so on; the fire resistance can reach the fire-retardant standard of UL94 V-0; and the phosphoric polyester fire-retardant epoxy resin composition has good fire resistance and electric property.

The invention discloses an acrylonitrile copolymer spinning solution and a preparation method thereof. The spinning solution is a mixed solvent solution of an acrylonitrile copolymer; the acrylonitrile copolymer is formed by polymerization of a first acrylonitrile monomer and a comonomer, and the comonomer comprises unsaturated carboxylic acid monomers; the mass of the first acrylonitrile monomer is 90-99.5% of the total mass of monomers, and the mass of the comonomer is 0.5-10% of the total mass of monomers; the mixed solvent is a mixture comprising dimethyl sulfoxide and at least one of water, alcohol solvents and ketone solvents; and the mass percent concentration of the monomers in the spinning solution is 15-30%. In the invention, the mixed solvent of the dimethyl sulfoxide is adopted in the process of acrylonitrile copolymerization, and the proportion of each solvent is controlled to carry out copolymerization reaction in homogeneous phases; and meanwhile, the second comonomer is continuously replenished in a certain time of reaction to stabilize the instantaneous composition of the acrylonitrile copolymer to obtain the polyacrylonitrile copolymer spinning solution with high molecular weight, narrow molecular weight distribution and uniform chain structure.

The invention relates to a compound oil-soluble viscosity reducer for reducing viscosity of thickened oil and a preparation method of the compound oil-soluble viscosity reducer. The compound oil-soluble viscosity reducer is compounded of a ternary oil-soluble copolymer and an oil-soluble fatty alcohol polyoxyethylene ether nonionic surfactant. The compound oil-soluble viscosity reducer is characterized by comprising the following contents: 1) preparing octadecyl methacrylate; 2) preparing SMA which is a maleic anhydride-styrene-octadecyl methacrylate copolymer; 3) preparing SMZA which is an ester copolymer of maleic anhydride-styrene-acrylamide and higher alcohols; and 4) compounding the SMA or SMZA copolymer with a surfactant, wherein the mass ratio of the surfactant to the terpolymer is (0.5-1) to (1-3), and adding a solvent and stirring for an hour at 60 DEG C. The compound oil-soluble viscosity reducer is wide in raw material source, low in price, free of pollution, and simple in synthetic process, and has a wide market prospect.

The invention relates to a preparation method of a hyperbranched polymer-modified nano-silicon dioxide hybrid material. The preparation method comprises the following steps: grafting a mercapto group-containing silane coupling agent to the surface of nano-silicon dioxide, utilizing a surface mercapto group and polyfunctional acrylic ester to perform click reaction to form the modified nano-silicon dioxide with the tail end of the acrylic ester, further performing the click reaction with a polyfunctional mercapto compound to form the modified silicon dioxide with the tail end of the mercapto group, repeating the operation between the polyfunctional acrylic ester and the polyfunctional mercapto compound for multiple times, and forming a hyperbranched polymer on the surface of the silicon dioxide. The hyperbranched polymer-modified nano-silicon dioxide hybrid material prepared by the preparation method provided by the invention has the mercapto group at the tail end and a hyperbranched structure, when the hyperbranched polymer-modified nano-silicon dioxide hybrid material is applied in an ultraviolet curing coating, the heat resistance, the hardness, the wear resistance and other mechanical properties of the coating can be improved, and the hyperbranched polymer-modified nano-silicon dioxide hybrid material can particularly solve the problems of dispersion and migration of the nano-silicon dioxide in the ultraviolet curing coating and the problem of oxygen polymerization inhibition of the ultraviolet curing coating.