337 results about "Silica nanoparticle" patented technology

The invention relates to the field of membrane materials, and discloses an epoxy modified starch-based degradable membrane and a preparation method thereof, the epoxy modified starch-based degradable membrane comprises epoxidized starch, modified nanocellulose and a plasticizer; the modified nano cellulose is prepared by mixing a modified composite filler, a nano cellulose dispersion liquid and a zinc acetate dihydrate aqueous solution; the nano-cellulose dispersion liquid is prepared by adhering polytannic acid formed by oxidation and self-polymerization of tannic acid to the surface of nano-cellulose; the modified composite filler is prepared by performing carboxylation modification on nano titanium dioxide coated fumed silica nanoparticles by using succinic anhydride and gamma-aminopropyltriethoxysilane, then reacting with polyethyleneimine to obtain an aminated composite filler, and finally grafting glycidyl dodecyl dimethyl ammonium chloride to the surface of the aminated composite filler. The prepared film material is high in tensile strength, has certain hydrophobicity, and has good heat resistance, antibacterial property and flame retardant property.

The invention discloses an antibacterial corrosion-resistant coating and a preparation method thereof, and relates to the field of coating materials. The coating is prepared from the following components in percentage by mass: 2 to 5 percent of nano silver ion loaded mesoporous silicon dioxide nano particle antibacterial aid, 5 to 10 percent of zinc powder-containing corrosion inhibitor, 3 to 8 percent of nano montmorillonite, 30 to 40 percent of modified epoxy resin, 20 to 30 percent of polyurethane prepolymer and other aids. The nano silver ion antibacterial auxiliary agent is loaded in mesoporous silica nanoparticles through an ion exchange method, the zinc powder corrosion inhibitor is prepared through stirring and ball milling dispersion, and the modified epoxy resin is modified by adopting a silane coupling agent. The preparation process of the coating comprises the stages of premixing, grinding and refining, initiating polymerization and post-treatment, wherein a grinding medium is zirconium oxide beads with the diameter of 0.5-2 mm. The coating has excellent antibacterial and corrosion-resistant performance, is suitable for metal surface protection, and can effectively solve the problems that an existing coating is not lasting in antibacterial effect, insufficient in corrosion-resistant performance and not ideal in comprehensive performance.

The invention belongs to the technical field of environmental protection, and provides a preparation method of an imine-modified functionalized mesoporous magnetic silicon dioxide nano material. The method comprises the following steps: synthesizing Fe3O4 magnetic nanoparticles in a Fe < 2 + > / Fe < 3 + > alkaline hydrolysis system through a coprecipitation method; then coating the magnetic nanoparticles with an amorphous silicon dioxide layer by taking TEOS (tetraethoxysilane) as a silicon source by adopting a sol-gel method, so as to prepare magnetic silicon coated nanoparticles; the prepared nano-particles are subjected to secondary silicon coating guided by a cetyl trimethyl ammonium bromide (CTAB) mesoporous template agent, and mesoporous magnetic silicon nano-particles are formed after calcination; and finally, carrying out surface amination modification on the mesoporous magnetic silicon nano-particles by utilizing an amino silane coupling agent, and then carrying out condensation reaction on the mesoporous magnetic silicon nano-particles and various aldehyde derivatives to construct imine bonds, so as to obtain the imine-modified functionalized mesoporous magnetic silicon dioxide nano-material. The imine-modified functionalized mesoporous magnetic silicon dioxide nano-material formed by the invention has the characteristics of efficient adsorption, rapid magnetic recovery and excellent environmental stability, and can effectively remove polystyrene micro-plastics and organic pollutants in a water body.

Described herein are compositions, systems, and methods for targeted and controlled drug release. In some embodiments, the compositions, systems, and methods may comprise magnetoelectric silica nanoparticles for targeted and controlled release of chemotherapeutic drugs for cancer treatment. In some embodiments, an external magnetic field may be used to release one or more drugs from the magnetoelectric silica nanoparticles. The disclosed compositions, systems, and methods may improve drug targeting and reduce systemic drug toxicity.

The invention relates to the technical field of metal corrosion protection. The invention provides a preparation method of an active self-repairing anticorrosive coating for a vibration sensor in a severe corrosion environment. The preparation method comprises the following steps: (1) preparing mesoporous silica nanoparticles; (2) preparing carboxyl cerium dioxide nanoparticles; (3) preparing an activated carboxyl cerium dioxide nanoparticle mixed solution; (4) preparing a triazindene-accelerant M solution; (5) preparing a mesoporous silica loaded carboxyl cerium dioxide nanoparticle coated indene and accelerant M filler; and (6) uniformly stirring the filler obtained in the step (5) with epoxy resin to obtain the active self-repairing anticorrosive paint. The invention further provides an active self-repairing anticorrosive coating for the vibration sensor in the severe corrosion environment and application of the active self-repairing anticorrosive coating. According to the anticorrosive paint prepared by the invention, the performances of high carrier loading capacity, strong corrosion inhibitor protection effect, high pH reaction rate and the like are improved, and the performance defects of a traditional self-repairing coating are made up.

The invention discloses a high-light-transmittance heat-insulation super-hydrophobic composite coating as well as a preparation method and application thereof, and relates to the technical field of coating preparation. The composite coating provided by the invention comprises a heat-insulating coating positioned on a bottom layer and a super-hydrophobic coating positioned on a top layer, wherein the heat-insulating coating comprises a binder and heat-insulating material particles dispersed in the binder; the super-hydrophobic coating comprises a micro-nano composite structure composed of modified silicon dioxide nanoparticles and fumed silica nanoparticles, the modified silicon dioxide nanoparticles are silicon dioxide nanoparticles which are prepared through hydrophobic treatment and have the particle size of 80-150 nm, and the mass ratio of the modified silicon dioxide nanoparticles to the fumed silica nanoparticles with the particle size of 15-30 nm is (0.2-0.4) g: (0.1-0.2) g; according to the composite coating provided by the invention, the light transmittance and the hydrophobicity of the composite coating are synergistically improved by regulating and controlling the proportion of silicon dioxide with different scales while the light transmittance, heat insulation and surface super-hydrophobicity are realized.

The invention relates to the technical field of wind power and power grid equipment anti-icing, and discloses a fluorosilicone oil microcapsule anti-icing coating for wind power and power grid equipment. Comprising the following components which are independently subpackaged: a component A, namely a nano ceramic pre-dispersion: 20-30 parts of methyltrimethoxysilane, 5-8 parts of tetraethoxysilane, 40-60 parts of isopropanol and 10-15 parts of silicon dioxide nanoparticles with perfluoroalkyl grafted on the surfaces; the component B is microcapsule dry powder: 25-40 parts of mesoporous alumina microcapsules filled with fluorosilicone oil, 1-4 parts of amino modified carbon nanotubes and 2-5 parts of an oxygen vacancy defect type titanium dioxide photocatalyst, the microcapsules are triggered to release the fluorosilicone oil through the volume expansion rate of a thermal expansion layer and stress sensitive layer composite wall material at low temperature, and meanwhile, when ice pressure exists, the stress sensitive layer can release the fluorosilicone oil, so that the stress sensitive layer can release the fluorosilicone oil. And the polydopamine-coated aluminum oxide layer is elastically deformed to synergistically release the fluorosilicone oil to form a dual-mode anti-icing mechanism.

The application belongs to the technical field of functional coating materials, and particularly relates to a kind of super-hydrophobic solution based on fumed silica and its preparation method and application, comprising: step one, 20-200nm fumed silica nanoparticles are dispersed in ethanol / water mixed system, and sodium dodecyl benzene sulfonate is added to prevent agglomeration;Step two, under the catalysis of ammonia, tetraethyl orthosilicate and 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane are added dropwise in sequence for fluorination modification;Step three, fluorinated silica nanoparticle suspension is prepared by ultrasonic-assisted reaction;Step four, the solution is sprayed onto the surface of ceramic substrate with micro-nano structure to form a coating;Step five, strong adhesion without adhesive is realized by mechanical anchoring effect.The application realizes super-hydrophobic performance of 153±0.5° high water contact angle and physical adhesion stability under 100-200g load by the synergistic effect of nanoparticle size effect and substrate surface topological structure, low surface energy of fluorinated alkyl chain and Cassie-Baxter air cushion layer effect, and is especially suitable for self-cleaning surface, anti-icing coating and marine corrosion prevention field.

The application discloses a light-controlled nitric oxide releasing hollow single-atom nanoscale enzyme, a preparation method and application, and belongs to the technical field of biomedical materials. In the application, spherical silica nanoparticles are used as a template, and a structure of copper ion-polydopamine coated silica nanoparticles is formed on the surface of the silica nanoparticles through self-polymerization of dopamine and chelation of copper ions, and the spherical structure is maintained with the support of the silica nanoparticles. The copper ion-polydopamine coated silica nanoparticles are pyrolyzed to obtain a copper-based single-atom nanoscale enzyme with a carbon skeleton, and a hollow spherical single-atom nanoscale enzyme is obtained after etching. Nitric oxide donor molecules are loaded into the hollow of the hollow spherical single-atom nanoscale enzyme to obtain the light-controlled nitric oxide releasing hollow single-atom nanoscale enzyme. The application can realize the synergistic treatment effect of photothermal therapy, nitric oxide gas therapy and biological catalytic therapy, is used for efficiently removing bacteria and biofilms at an infected wound site, and effectively promotes the healing of the bacteria-infected wound.

The invention provides low-viscosity high-wear-resistance vehicle engine oil and a preparation method thereof, and belongs to the technical field of engine oil. According to the preparation method, an ionic liquid group is introduced through a reaction, a nano interlayer compound is constructed by combining surface modification of a metal-ionic liquid complex and silicon dioxide nanoparticles, and a microcapsule structure is formed through coating of a urea-formaldehyde prepolymer; the ionic liquid group provides a low friction coefficient and thermal stability, the silicon dioxide nanoparticles provide physical isolation and wear-resistant protection, and the microcapsules realize controlled release and dynamic repair of the lubricating components; a skeleton polymer is prepared through a reaction of polyamidoamine and epoxy chloropropane so as to provide abundant active sites, and oxidation resistance is improved through a synergistic effect of the skeleton polymer, hindered phenol and calixarene; by combining oleic acid modified nanoparticles, the dispersity and the wear resistance are enhanced, and meanwhile, dynamic protection is provided on a friction interface; the synergistic effect prolongs the service life of the engine oil and improves the high-temperature stability of the engine oil.

The invention discloses a magnetic immobilized enzyme and a preparation method and application thereof in preparation of chitosan oligosaccharide, the immobilized enzyme comprises a carrier and an enzyme loaded on the carrier, the carrier is a magnetic nanoparticle modified double-hole silicon dioxide nanoparticle, the double-hole silicon dioxide nanoparticle simultaneously contains a plurality of macropores and a plurality of micropores, and the macropores and the micropores are uniformly distributed on the carrier. The aperture of the large hole is 20-40nm, the aperture of the small hole is 2-5nm, and the magnetic immobilized enzyme has strong magnetism, is more rapid and convenient to recover, has good reusability, is simple and convenient to operate, has a wide application prospect, and is suitable for industrial preparation of chitosan oligosaccharide.

The invention provides corona-resistant polyamide-imide insulating paint and a preparation method and application thereof, the polyamide-imide insulating paint is prepared from the following raw materials: aromatic tricarboxylic anhydride, aromatic diisocyanate and alcoholic hydroxyl group modified silicon dioxide nanoparticles, and the three materials are matched to prepare the corona-resistant polyamide-imide insulating paint. The obtained polyamide-imide insulating paint has excellent storage stability before curing, and after curing, silicon dioxide nanoparticles can be uniformly dispersed in a formed insulating paint film and are not easy to agglomerate; and therefore, the enameled wire prepared from the polyamide-imide insulating paint has excellent corona resistance and excellent flexibility, and is suitable for being applied to a high-voltage motor.

Methods and compositions including a CO2 foam treatment fluid having a plurality of functionalized silanol group silica nanoparticles the silanol group selected from the group consisting of an isolated silanol group, a vicinal silanol group, a geminaol silanol group, and any combination thereof; and a surfactant. The CO2 foam treatment fluids can be used for stimulation of subterranean formations for hydrocarbon production.

The invention belongs to the technical field of biological medicines, and relates to a protein degradation system based on polyamide-amine dendrimers as well as a preparation method and application of the protein degradation system. The protein degradation system is of a nano-particle structure, and the nano-particle structure comprises silicon dioxide nano-particles and a polyamide-amine type dendritic polymer layer coating the surfaces of the silicon dioxide nano-particles. An MDM2 protein ligand, a GLUT1 protein ligand and an E3 ubiquitin enzyme ligand are connected to the polyamide-amine dendritic polymer layer through chemical bonds. The protein degradation system provided by the invention can be used for synergistically degrading the MDM2 protein and the GLUT1 protein. The synergistic degradation strategy not only can effectively inhibit proliferation and energy metabolism of tumor cells, but also can significantly enhance the stability of the p53 protein. By recovering the normal function of the p53 protein, the growth of tumor cells is further inhibited, and a new strategy is provided for tumor treatment.

The invention relates to the technical field of high polymer materials, in particular to a corrosion-resistant cable sheath material and a preparation method thereof. The sheath material is prepared by taking an ethylene-octylene copolymer as a matrix and compounding functional fillers such as an aminated magnesium ion exchange A type molecular sieve, dopamine shell silicon dioxide nanoparticles and phenylboronic acid / octadecyl double-grafted silicon dioxide nanoparticles. Wherein the aminated Mg-A molecular sieve is used for efficiently capturing and fixing chloride ions through an ion-dipole effect and a hydrogen bond network; the dopamine shell layer silicon dioxide enhances the interface bonding strength through dual active groups of catechol and amido; phenylboronic acid / octadecyl double-grafted silicon dioxide constructs a dynamic boric acid ester cross-linked network and a hydrophobic barrier, and synergistic protection of crack self-healing and moisture barrier is achieved. The sheath material remarkably improves the long-term corrosion resistance and mechanical stability of the cable in a severe environment.

An example of a resin composition includes an epoxy resin matrix and functionalized silica nanoparticles incorporated into the epoxy resin matrix. The functionalized silica nanoparticles have an average particle size up to about 10 nm. The resin composition is imprintable using nanoimprint lithography. The resin composition may be used to manufacture a patterned substrate for a flow cell.

The invention provides a preparation method of morphology-controllable silicon oxide nanoparticles, which comprises the following steps: (1) preparing alkali liquor which contains organic amine or amino acid with buffering capacity and has the pH value of about 8-10.5; (2) preparing hydrolysate which contains deionized water, ethanol and tetraethoxysilane in a certain proportion and has a controllable siloxane hydrolysis state; (3) adding the hydrolysate into the alkali liquor prepared in the step (1) according to a small-amount multi-time method, and reacting for 1-5 hours to obtain a silicon oxide nano-particle solution; and (4) carrying out large particle filtration, solvent replacement and concentration on the silicon oxide nanoparticle solution by an ultrafiltration method to finally obtain the silicon oxide nanoparticle product with controllable morphology. The morphology of the synthesized high-purity silicon oxide nanoparticles can be accurately regulated and controlled according to actual requirements. Due to the characteristic, the silicon oxide nano-particles can fully meet the diversified requirements on abrasive morphology under different chemical mechanical polishing (CMP) scenes.

The invention discloses a surfactant for improving the recovery efficiency of an oil field, and relates to the technical field of oil field recovery. The cleaning agent is prepared from the following materials in parts: 10 to 500 parts of mahogany petroleum sulfonate, 20 to 450 parts of alkylbenzene sulfonate, 10 to 590 parts of fatty alcohol, 1 to 50 parts of ethylene oxide, 1 to 90 parts of silicon dioxide nanoparticles, 2 to 79 parts of alkyl halide, 20 to 90 parts of sodium hydroxide, 1 to 80 parts of sodium carbonate, 5 to 50 parts of xanthan gum, 1 to 78 parts of carbon nanotubes and 100 to 1000 parts of water. The invention further discloses a preparation method of the surfactant for improving the recovery efficiency of the oil field. Through the introduced material, the oil-water interfacial tension can be effectively reduced, crude oil can be more easily stripped from the rock surface, the oil displacement efficiency is remarkably improved, the oil displacement agent can be flexibly adjusted according to different oil reservoir conditions to adapt to a complex stratum environment, the oil displacement agent has good emulsifying performance, the crude oil can form a stable emulsion in water, and the fluidity of the crude oil is improved; the nanoparticles can form a stable interfacial film on an oil-water interface.

The present invention relates to an additive for all-solid-state rechargeable batteries, a solid electrolyte membrane, and an all-solid-state rechargeable battery, the additive comprising: porous silica nanoparticles; and a solid electrolyte reactive compound located inside the pores of the porous silica nanoparticles, wherein the solid electrolyte reactive compound has a melting point of 100ºC to 170ºC and includes a heteroatom-containing functional group.

The application discloses iron oxide coated silica core-shell nanoparticles and a preparation method and application thereof. The iron oxide coated silica core-shell nanoparticles comprise silica nanoparticles as an inner core and iron oxide nanoparticles as an outer shell coated on the inner core surface of the silica nanoparticles; the particle size is 22-112 nm; and the particle uniformity is 0.08-0.3. The preparation method of the iron coated silica nanoparticles provided by the application adopts the measure of adjusting the pH of slurry for multiple times, avoids the agglomeration of nanoparticles in a solution near the isoelectric point, and is thus favorable for finally obtaining core-shell nanoparticles with uniform monodispersity. No surfactant is used in the preparation process, and there is no complicated post-treatment process, thereby reducing the production cost. The uniformly monodispersed nanoparticles prepared by the method have great potential in the field of chemical mechanical polishing.

A method for improving drug solubility and a drug composite material having improved solubility. The method comprises preparing a silica colloidal suspension from silica nanoparticles having a diameter between 2 nm and 100 nm; rapidly evaporating a solvent by means of controlling the temperature and pressure, so as to obtain a porous surface material with ultra-high density silanol groups retained on the surface; and loading drug molecules. By controlling the size of nanoparticles and the density of silanol groups, drug molecules can be effectively adsorbed under anhydrous conditions, and rapidly desorbed and released in an aqueous environment.

The invention provides a preparation method of a TBBPA selective adsorption film. The method comprises the following steps: 1) synthesizing mesoporous silica nanoparticles; the invention discloses a TBBPA selective adsorption membrane and a preparation method thereof, the TBBPA selective adsorption membrane comprises the following steps of 1, TBBPA preparation, 2, base membrane synthesis and 3, blotting membrane synthesis, the TBBPA selective adsorption membrane is suitable for selective adsorption and separation of TBBPA from polluted water, through the design of blotting sites, TBBPA can be selectively adsorbed from analogues, and the TBBPA selective adsorption membrane has good application prospects in the field of selective separation of high-concentration TBBPA pollutants.

We have developed novel shear-thinning biomaterials using silica nanoparticles, gelatin-based polymers and small molecules such as doxorubicin. Shear-thinning biomaterial technology offers enables polymers and drugs loaded inside such polymers to be easily delivered directly through catheters into target area for use, for example, in cancer therapy and immunotherapy. When a force above a certain threshold is applied to inject such materials, they “thin” and behaves as a semi-solid, allowing the material to readily flow through a catheter. When the force is removed, the material instantly becomes a soft solid with significant cohesive properties that prevent it from dislodging or breaking up.

The present invention relates generally to nanoparticle-stabilized fire-fighting foam concentrates, fire-fighting foam solutions, and fire-fighting foams prepared from the concentrates or solutions of the present invention that contain one or more silica nanoparticles (e.g., silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, silica nanoparticles, surface modified silica nanoparticles) and any one or all of one or more components selected from the group consisting of one or more organic solvents, one or more surfactants, one or more biopolymers, and one or more alcohols. The invention also relates to a method for increasing the resistance of fire-fighting foams to polar solvents. The present invention also relates to methods of making fire foam concentrates comprising silica nanoparticles (e.g., surface-modified silica nanoparticles).

A nanoparticle-well treatment additive complex comprising an amine functionalized silica nanoparticle, and a well treatment additive, where the well treatment additive is releasably attached to an amine group of the amine functionalized silica nanoparticle is disclosed. Methods of using the amine functionalized silica nanoparticle is also disclosed.

The invention relates to the technical field of food processing, and provides a method for reducing the use amount of ethanol produced from citrus fibers. Mixing the wet fiber component C with 75%-85% ethanol according to the mass ratio of 1: 1, adding hydrophobic nano silicon dioxide accounting for 1%-3% of the mass of the wet fibers, dispersing and mixing at a high speed by using a colloid mill to gradually flocculate and precipitate the fibers, and discharging an upper-layer mixed solution of ethanol and water; adding 0.5-0.7 time of 95% ethanol into the precipitate, putting the precipitate into an ultrasonic reactor, and treating for a preset time under the conditions that the frequency is 30-50kHz and the power density is not lower than 1W / L to remove the nano silicon dioxide, so as to obtain a precipitate D; and squeezing and dealcoholizing the precipitate D material to obtain the finished product citrus fiber. According to the method, the hydrophobicity is increased by the silicon dioxide nanoparticles so as to reduce the water absorption rate of the fiber, and the ethanol consumption is greatly reduced during the production of the citrus fiber.

This invention discloses a method for preparing a core-shell microneedle patch loaded with dual nanoparticles, comprising: preparing silica nanoparticles loaded with oxyhemoglobin and dihydroporphyrin e6; preparing calcium carbonate nanoparticles loaded with aPD-1 antibody; dispersing the silica nanoparticles loaded with oxyhemoglobin and dihydroporphyrin e6 in a polyvinyl alcohol solution to prepare the shell structure of the microneedles; preparing a polymer hydrogel; dispersing the calcium carbonate nanoparticles loaded with aPD-1 antibody in the polymer hydrogel to prepare the core structure of the microneedles; and casting the polyvinyl alcohol solution onto the backing of the microneedles to finally obtain the core-shell microneedle patch loaded with dual nanoparticles. The core-shell microneedle patch loaded with dual nanoparticles prepared by this invention can deliver nanoparticles to the tumor site, where the nanoparticles respond to the tumor microenvironment and activate the body's own immune system, thereby achieving a therapeutic effect on tumors.

The invention discloses a rare earth element modified nickel-based nano-catalyst and a preparation method and application thereof.The rare earth element modified nickel-based nano-catalyst comprises a carrier and an active component loaded on the carrier, and the carrier is cerium dioxide and yttrium oxide co-doped three-dimensional ordered silicon dioxide nanoparticles; the active component is metal nickel. The application refers to the application of the catalyst in preparation of synthesis gas through carbon dioxide methane reforming. According to the invention, rare earth element doped and modified three-dimensional ordered silicon dioxide nanoparticles are used as a carrier, nickel metal is loaded on the nanoparticles, and the problem of carbon deposition can be effectively reduced by adjusting the interaction of alkaline sites and oxygen vacancies on the surface of the catalyst and the metal carrier. The method provided by the invention is helpful for realizing industrialization of a carbon dioxide methane catalytic reforming reaction, realizing a carbon emission reduction target and solving a green electricity energy storage problem.

The application discloses a carboxyl modified nano oil displacement agent which is composed of a nano silicon dioxide skeleton and a functional group connected to the nano silicon dioxide skeleton, wherein the functional group is -RCOOM, R is CH2 or C2H4, and M is one of Li, K and Na. The application also discloses a preparation method of the carboxyl modified nano oil displacement agent, which comprises the following steps: (1) preparing a hydroxyl silicon dioxide nanoparticle dispersion liquid; (2) preparing an amino modified nano silicon dioxide solution, and obtaining amino modified nano silicon dioxide particles after first post-treatment; and (3) dispersing the amino modified nano silicon dioxide particles in water, adding a halogen acetic acid monovalent salt, and then performing reaction and second post-treatment to obtain the carboxyl modified nano oil displacement agent. The oil displacement system is composed of the carboxyl modified nano oil displacement agent, a polymer, a surfactant and water, wherein the carboxyl modified nano oil displacement agent accounts for 0.05-0.3%, the polymer accounts for 0.1-0.3%, the surfactant accounts for 0.1-1%, and the rest is water.

The invention discloses a porous breathable waterproof automobile tarpaulin material and a preparation method thereof.The preparation method comprises the steps that a polyester fiber membrane is modified through dopamine hydrochloride, the surface tension of a water solvent is regulated and controlled through a surfactant, so that a silicon dioxide precursor is dissolved and dispersed, and silicon dioxide nanoparticles grow on the surface of the modified polyester fiber membrane in situ; then adding a low-surface-energy modifier, namely super-hydrophobic silicon dioxide nanoparticles; and finally, drying the treated polyester fiber film in a heating environment and decomposing the surfactant to obtain the waterproof automobile tarpaulin material with the porous structure. According to the automobile tarpaulin, the porous structure of the polyester fiber film is kept, meanwhile, the waterproof performance is achieved, the automobile tarpaulin has the protection function and the air permeability, the problem that the quality of transported goods is reduced due to the fact that the tarpaulin is shielded is solved, and the application range of the automobile tarpaulin is widened. The waterproof material is synthesized and prepared by using water as a solvent, and the problems of flammable and explosive risks and environmental pollution caused by the use of an organic solvent are avoided.