3184 results about "Megasonic cleaning" patented technology

A prepn. method of silicon thin film heterojunction solar cell includes following steps: cleaning substrate, semiconductor cleaning technology is used to do primary cleaing to substrate surface, then do ultrasonic cleaning in deionized water several times; nitrogen blow drying; prepare nitrinsic amorphous silicon layer by heater chemical vapour phase depositing technology, tungsten filament temp. is measured by pyrometer, temp of heater and sample are determined separately by two electric thermo-couples, temp. is controlled by electric temp. controller; to react and grow thin film on substrate surface; to redeposit a transmitting layer on intrinsic amorphous silicon thin film; front and back electrodes forming, sputtering technology is used to form front and back electrodes; finally to proceed vacuum heat annealing process. The thin film produced by the invention has illumination stability, the photoconduction gain can reach to 10 to the power 6 on Am1.5 100mW/cm2 standard illumination.

The invention discloses a method for preparing a multi-metal element doped diamond film, which is characterized by comprising the following steps: removing a pollution layer on matrix surface by using the ultrasonic cleaning technology, carrying out ion beam bombardment cleaning on the matrix surface by using inert gas ion beam produced by an ion source, carrying out metal ion bombardment cleaning on the matrix surface by using metal ions produced by a cathodic arc source under a condition of high workpiece negative bias, preparing a gradient transition layer by using a cathodic arc deposition or ion beam assisted magnetron sputtering (IBAMS), and synthesizing a multi-metal element doped DLC film on the transition layer by using ion beam deposition and mosaic composite target magnetron sputtering, wherein the ion beam deposition is realized by introducing carbon gas in the ion source; and the mosaic composite target doped multiple metal are used, and the main body material of the mosaic composite target can be any one of Ti, Cr, W, Zr, Nb and Ta, and the mosaic block material is one or more of other metals except the above main body materials.

The invention discloses an ultrasonic cleaner and belongs to the field of mechanical equipment cleaning. The ultrasonic cleaner solves the problems that cleaning fluid in an existing ultrasonic cleaner cannot remove impurities in time, and the cleaning fluid is wasted. The ultrasonic cleaner comprises a rack (1), an ultrasonic generator (2), a cleaning tank (3) and ultrasonic vibrators (4). A water circulation device is arranged on the outer side of the cleaning tank (3) and comprises an overflow tank (5) arranged on one side of the cleaning tank (3). The water circulation device further comprises the overflow tank, an oil contamination tank (7), a water storage tank (8), a water pump (9), a filter (10) and a water injection tank (11). The bottom of the water injection tank (11) is communicated with the cleaning tank (3). The bottom of the cleaning tank (3) is an inclined plane. The ultrasonic cleaner integrates the functions of heating, ultrasonic waves, circulating filtration, oil-water separation and article movement, the cleaning speed is high, and the cleaning effect is good; besides, the ultrasonic cleaner is multifunctional, low in energy consumption and capable of prolonging the replacement cycle of the cleaning fluid and reducing environmental pollution, thereby being wide in application range.

In an ultrasonic washer for washing by splaying washing toward an object to be washed or a portion to be washed from a front end of a nozzle, a part of an ultrasonic wave propagation member connected to an ultrasonic transducer is protruded into a cavity of the nozzle into which the washing is filled in order to propagate ultrasonic vibration generated by the ultrasonic transducer to the washing efficiently. Furthermore, the ultrasonic wave propagation member is formed so that a cross-sectional area becomes gradually smaller as approaching to the front end thereof, so that the ultrasonic vibration is converged to the end face of the ultrasonic wave propagation member. Still furthermore, a length of the ultrasonic transducer and the ultrasonic wave propagation member is made to be integral multiplication of a half-wavelength of ultrasonic standing wave oscillation, and the end face of the ultrasonic wave propagation member from which the ultrasonic wave is emitted to the washing is disposed at a position of antinode of the ultrasonic standing wave oscillation where the amplitude becomes the largest.

An apparatus and method are provided for cleaning (removing) contaminating particles and/or films from substrate surfaces such as semiconductor wafers during the fabrication process for making electronic components. The method and apparatus use a liquified gas contained in a distributor which has been energized with megasonic energy in the distributor and the energized liquefied gas directed as a stream against the surface to be cleaned from an outlet distribution nozzle of the distributor. The stream is preferably impinged on the substrate surface at an acute angle. The preferred liquified gas is carbon dioxide.

The invention discloses a method of electrolytically extracting and detecting fine inclusions in steel, belonging to the technical field of metal physical research methods. The method comprises the following technical steps of: using an organic electrolyte to carry out electrolysis on a steel sample; after electrolysis, washing the electrolyte mixed with the inclusions by absolute ethyl alcohol, and carrying out magnetic separation on the electrolyte by a magnet; separating the electrolyte after magnetic separation and collecting the inclusions by adopting a method of centrifugation by a centrifugal machine; putting the collected inclusions into a solvent easy to volatilize, carrying out ultrasonic dispersion on the inclusions by an ultrasonic cleaner, and then dripping a solution after ultrasonic dispersion on a carrier drop by drop by a trace pipette; and after the solvent volatilizes, putting the carrier which is distributed with the inclusions into a scanning electron microscope to analyze. The method has the advantages that the fine inclusions can be extracted in an undamaged way, the obtained inclusions are good in dispersion under a field of view of the scanning electron microscope, the shapes of the inclusions are perfect, and a good space statistic analysis result can be obtained so as to supply accurate data for a product.

The invention discloses a circulating water electrolytic descaling device and a descaling method thereof, and belongs to the technical field of environment protection. The device comprises a reaction chamber, a water inlet, a water inlet valve, a water outlet, a water outlet valve, a drain outlet, a drain valve, an anode, a control system, an end plate and a bracket. The reaction chamber therein is provided with a test anode, the reaction chamber is made of metal materials, and the inner wall thereof is used as the cathode of an electrolytic reaction and connected with a cathode wiring terminal; the anode and the test electrode pass through the end plate and are and fixed on the end plate, the test electrode approaches the inner wall of the reaction chamber, the outer wall of the reaction chamber is coated with an epoxy resin layer and provided with an ultrasonic cleaner, the bottom of the reaction chamber is spherical or tapered, and the inner surface thereof is coated with the epoxy resin layer. The descaling method comprises an electrolytic descaling process and a cleaning descaling process. The invention uses ultrasonic waves for automatically descaling and cleaning, has the functions of automatically sterilizing, removing alage and softening water quality after descaling, has multiple functions, compact, firm and durable structure, and is suitable for sterilization, algae removal, descaling and corrosion resistance of circulating cooling water.

The invention provides a preparation method of a super-hydrophobic micro-nano structure on a titanium alloy surface. The preparation method comprises the following steps: performing ultrasonic cleaning on a titanium alloy sample respectively with acetone and anhydrous alcohol, to obtain a titanium alloy sample with a clean surface; performing femtosecond laser photoetching processing on the surface of the titanium alloy sample with the clean surface, to obtain the titanium alloy sample with the surface having the super-hydrophobic micro-nano structure in one step, wherein a femtosecond laser beam is fixed and perpendicular to the surface of a processed material, the single pulse energy of the femtosecond laser beam is 100mu J-800mu J, the pulse width is 100fs-500fs, the central wavelength is 500nm-1000nm, the repetition frequency is 500Hz-2kHz, and the size of the etched facula of the femtosecond laser beam is 0.5mum-300mum; the surface of the titanium alloy sample moves relative to the etched facula of the femtosecond laser beam along the three-dimensional directions x, y and z, the motion positioning precision in x and y directions is 50nm-100nm, and the motion positioning precision in z direction is 5nm-10nm.

Megasonic cleaning systems and methods of fabricating and using the same are provided. In one embodiment, the system comprises a plurality of Micro-Electromechanical System (MEMS) transducers, each transducer including a movable membrane with a membrane electrode coupled to a first potential disposed above and spaced apart from an upper surface of a die including a cavity electrode coupled to a second potential, the membrane including multiple layers including a polysilicon layer between a top silicon nitride layer and a bottom silicon nitride layer, and the membrane electrode includes the polysilicon layer; a chuck on which a target workpiece is positioned; and a fluid to couple sonic energy from the plurality of MEMS transducers to the target workpiece. Other embodiments are also provided.

An ultrasonic cleaning method and an ultrasonic cleaning device are provided, which are capable of performing simultaneously cleaning and sterilization of medical appliances or the like, and which can also be used for washing hands for disinfection without any special waste water treatment. The ultrasonic cleaning method for cleaning an object to be cleaned by using an ultrasonic wave includes the steps of putting cleaning fluid and the object to be cleaned in a cleaning tank (16), and applying ultrasonic vibrations to the cleaning fluid from an ultrasonic vibration member disposed in the cleaning tank (16) while ejecting air containing ozone into the cleaning fluid. The vibration portion has a communicating conduit 40 that opens at the surface thereof, and air containing ozone is discharged into the cleaning fluid from the communicating conduit. A silver electrode is disposed in the cleaning fluid, and electrolytic sterilization by silver ions is performed for the object to be cleaned adding to sterilization by ozone.

The invention relates to a blackberry and mulberry compound fruit wine and a brewing method thereof. The method comprises the following steps of: sorting blackberries and mulberries as raw materials, cleaning the raw materials by using deionized water matched with ultrasonic waves and mixing by according to a certain proportion; then pumping the mixture into heating equipment to heat to 40 DEG C to 50 DEG C, and carrying out enzymolysis, component adjustment, sterilization, compound yeast fermentation, clarification, allocation, filtering and formation of compound fruit wine; and checking and packaging the compound fruit wine into products. The brewing method makes the fragrances of the blackberries and the mulberries complement with nutrient components to prepare the health-care blackberry and mulberry compound fruit wine with the advantages of powerful fruit flavor, ruddy color and luster, sweet vinosity, reasonable nutrition and good texture, and the health-care blackberry and mulberry compound fruit wine has the functions of resisting aging, blacking hair and hairdressing, preventing and resisting cancers and enhancing immunities, especially has an obvious effect on preventing cardiovascular and cerebrovascular diseases, and can improve the immunities of human bodies and be is beneficial to health when frequently drunk by people.

The invention discloses a lobster cleaning machine which comprises an engine base, a lobster spreading plate, a cleaning brush, a water spraying device, a driving device, an ultrasonic cleaning vesseland a water supply device, wherein the lobster spreading plate is mounted on the engine base and a brushing tank used for enabling abdomens of lobsters to be exposed downwards runs through the lobster spreading plate; the cleaning brush is mounted at the brushing tank upwards and movably arranged in a horizontal direction; the water spraying device is used for spraying water to the abdomens of lobsters on the lobster spreading plate; the ultrasonic cleaning vessel is arranged on the engine base; and the water supply device is used for supplying water to the water spraying device and the ultrasonic cleaning vessel. According to the technical scheme provided by the invention, the cleaning brush can be driven by the driving device to brush the abdomens of lobsters on the lobster spreading plate, and the lobsters are wholly cleaned by the ultrasonic cleaning vessel, so that a manual cleaning link is reduced. By combining two manners such as cleaning by the cleaning brush and ultrasonic cleaning, the cleaning effect and the cleaning efficiency are greatly increased.

A vibrating and ultrasonic washer which is composed of a case externally provided with a cover and a switch button, and interiorly provided with control circuits, a UV sterilizing light and a vibration device; wherein the vibration device includes pluralities of support mats, a vibration motor and/or at least an ultrasound generator and a washing tank; the vibration motor and/or at least one ultrasound generator is/are provided on a base board and controlled by the control circuits; the base board is connected into the case via the pluralities of support mats; the washing tank is stacked on the base board; thereby the articles to be washed can be put in the washing tank to accomplish cleaning and sterilizing purposes via the vibration waves and/or ultrasound.

A liquid-phase vibration welding method by filling composite flux for noncontinuously reinforced Al-base composition includes such steps as abrading two surface to be welded, ultrasonic washing in acetone, drying in the air, fixing by fixture in opposite mode, filling composite flux between two surfaces, heating to smelt the flux, vibrating while pressing, and cooling.

The invention relates to the technical filed of vacuum plating, in particular to a preparation method for conducting vacuum compound plating on the surface of a neodymium iron boron magnet, which is characterized in that the preparation method comprises the following steps: A. pre-treatment, the mixed liquor of washing liquid and purified water is used for conducting oil removal and parting medium washing to the magnet surface in an ultrasonic wave cleaner; B. ion cleaning and activation, the pre-treated neodymium iron boron magnet which is dried at 80-100 DEG C for 5-10 minutes undergoes bombardment activation of a glow plasma in vacuum environment, so as to increase surface activation energy; and C. vacuum plating, vacuum plating treatment is conducted to the neodymium iron boron magnet washed by ions in a vacuum chamber, and a metal plating is prepared on the surface. The deposited metal film on the surface of the neodymium iron boron magnet has the advantages of good stability, high bonding force and tightness, stronger anti-corrosion performance in cold and hot alternation environment. Furthermore, in the physical vapor deposition plating process, the plating thickness is affected much less by the magnet workpiece corner than in electroplating and chemical plating, and the pollution problem is avoided in the preparation process.

The invention relates to a method and a device for pre-treating oil field sewage by ultrasonic oxidation united with electrochemical oxidation, and belongs to the sewage treatment of oil field exploration and production. The invention discloses (1) an ultrasonic and electrochemical cooperated composite oxidation method for oxidizing and degrading organic pollutants in an oil field, wherein the frequency of the ultrasonic wave is 20 to 500Hz; and current density is 50 to 5000A/m<2>; and the invention also discloses (2) an ultrasonic washing method for washing cathode scales which are oxidized in a united electrochemical mode. The device is a composite oxidizing electrolytic bath device, wherein an electrolytic bath, an anode and a cathode are arranged in the composite oxidizing electrolytic bath device; and particularly an ultrasonic device is arranged on the electrolytic bath. The invention has the advantages of reducing and avoiding medicament doping, avoiding the medicament resistance of biological species in a water body and the phenomena of a discontinuous electrolysis process, a poor electrolysis effect and the like caused by the cathode scales in the traditional electrochemical electrolysis, ensuring the stable quality of discharged water and a better purification effect, and lowering water treatment cost.

The invention discloses a continuous belt material cleaning equipment system, comprising a station of a pre-spray cleaning area, a station of an ultrasonic cleaning area, a station of a spray cleaning area, a station for a first air knife water shearing, a station of an acidic or alkaline cleaning area, a station of a pure water spray cleaning area, a station for a second air knife water shearing and a station for hot air drying which are connected in turn and arranged on a frame; the stations are electrically connected with a PLC controller; the PLC controller detects and controls input of the belt material from the station of the pre-spray cleaning area; and the belt material is then output after ultrasonic cleaning, spray cleaning, air drying, acid and alkaline cleaning, pure-water cleaning and drying. The system adopts the PLC controller to automatically control and detect the production process without additional auxilians. The system has the function of removing oil and oxide on the surface of the belt material; and the secondary products meet the requirements of electronic-grade product manufacturing. Washing agent is used to carry out internal circle cleaning without discharging, thereby satisfying environment-friendly manufacturing. The system adopts a method combining rinsing and pre-rinsing, so as to reach the goal of water saving and energy saving.

The invention discloses a metal bearing water-based cleaning agent and a preparation method and application thereof. The cleaning agent comprises the following components in percentage by mass: 2 to 8 percent of fatty alcohol polyoxyethylene ether, 2 to 8 percent of alkylphenol polyoxyethylene ether, 3 to 10 percent of fatty acid alkanolamide, 5 to 25 percent of triethanolamine oleate, 10 to 22 percent of triethanolamine, 5 to 18 percent of monoethanolamine, 0.5 to 3 percent of alkyl sodium sulfonate, 0.01 to 0.5 percent of benzotriazole, 1 to 2 percent of disodium ethylene diaminetetraacetate and 3.5 to 71.49 percent of water. During use, the cleaning agent is prepared into 2 to 10 percent working solution, and a bearing part is ultrasonically cleaned, rinsed, subjected to spray washing and dried to meet the cleaning degree standard and the finished product vibration value standard. The product is environment-friendly, does not influence a bearing material, is prepared from readily available raw materials, has low cost, can replace the conventional cleaning gasoline and kerosene, reduces the potential safety hazard, avoids environmental pollution, and saves energy.

An ultrasonic cleaning apparatus which performs ultrasonic cleaning of a contamination attached to a surface of an object to be cleaned, by using a cleaning liquid to which ultrasonic waves are applied has a cleaning bath pooling the cleaning liquid, a support base on which the object to be cleaned is supported in the cleaning liquid, ultrasonic wave generation device for alternately focusing first ultrasonic waves having a frequency of 1 to 10 MHz and second ultrasonic waves having a frequency equal to or lower than ½ of that of the first ultrasonic waves toward the object to be cleaned, a focus position adjustment device of adjusting the distance between a focus position for the focus and the surface of the object to be cleaned, and moving device of moving at least any one of the ultrasonic wave generation device and the support base so that the effect on the surface of the object to be cleaned of the ultrasonic waves generated by the ultrasonic wave generation device is uniform.

Methods for making electronic devices on thin sheets bonded to carriers. A surface modification layer and associated heat treatments, may be provided on a sheet, a carrier, or both, to control both room-temperature van der Waals (and/or hydrogen) bonding and high temperature covalent bonding between the thin sheet and carrier during the electronic device processing. The room-temperature bonding is controlled so as to be sufficient to hold the thin sheet and carrier together during vacuum processing, wet processing, and/or ultrasonic cleaning processing, during the electronic device processing. And at the same time, the high temperature covalent bonding is controlled so as to prevent a permanent bond between the thin sheet and carrier during high temperature processing, during the electronic device processing, as well as maintain a sufficient bond to prevent delamination during high temperature processing.

An automated method of cleaning the pipes of a plate washing system is provided. The plate washing system includes at least one manifold having a plurality of pipes configured to be provided within wells of a plate in order to wash the wells, an ultrasonic transducer mounted to a tank, and a control system. The plate washing system also includes sensors to sense the position of the pipes relative to plate and the tank, and the fluid level within the wells of the plate. The method includes dispensing fluid to the tank, submerging the tips of the pipes within the fluid, activating the ultrasonic transducer in order to vibrate the fluid, and aspirating the fluid from the tank. The control system may initiate a cleaning operation at the request of the user, at a scheduled interval, or when the level sensing system detects a decrease in instrument function.

The invention relates to a manufacturing method of a hot bent 3D (Three Dimensional) glass white sheet. The manufacturing method comprises the following steps: (1) cutting a material: cutting a glass white sheet material into a plurality of small glass white sheets with proper sizes; (2) finely engraving: putting the small glass white sheets into a CNC (Computer Numerical Control) fine engraving machine, and punching and grinding edges; (3) cleaning: carrying out cleaning treatment on the glass white sheet by utilizing a glass cleaning machine; (4) carrying out ultrasonic treatment: washing surface residual waste dreg on the surface of the glass white sheet by utilizing an ultrasonic washing machine; (5) hot bending: putting the glass white sheet into a hot bending mold and hotly bending, machining and molding the glass white sheet into a 3D curve surface; (6) tempering: putting the hotly bent glass white sheet into a tempering frame; conveying the tempering frame into a tempering furnace and raising the temperature to 380 DEG C-420 DEG C, wherein the heating time is 4h-8h and the hardness reaches 7H; (7) carrying out plasma spraying: putting the glass white sheet into a fingerprint oil spraying machine and spraying fingerprint oil on a surface through plasmas; baking at a temperature of 140 DEG C-160 DEG C for 25-30 minutes until the fingerprint oil is dried; (8) fitting: fitting release films on upper and lower surfaces of the glass white sheet; and (9) packaging.

The invention belongs to the technical field of tools for lithium chips and particularly relates to a production process of 6-inch lithium niobate or lithium tantalite chips. The production process includes the steps of A, cutting to obtain chips 0.6-1mm in thickness; B, charging the chips into a reduction furnace for reduction; C, after grinding, cleaning by ultrasonic; D, pasting the chips; E, grinding; F, polishing; G, cleaning, and boxing. Internal stress of the chips is removed by double corroding, electrostatic charge is removed from the chips by blackening, ultra-smooth planes are obtained by mechanical chemical polishing, TTV is smaller than 5 um, BOW is smaller than 40 um, warp is smaller than 40 um, PLTV is larger than 95%, and the production process is suitable for mass production.

The invention discloses a printing bank note rubber-covered roll automatic cleaning equipment and its cleaning method which belongs to equipment cleaning technology field. The printing bank note rubber-covered roll automatic cleaning equipment consists of frame and driving device, ultrasonic cleaning grove, spray groove, heat wind drying groove which are installed on the frame and controlled by control device; the printing bank note rubber-covered roll automatic cleaning method is: the driving device controlled by control device drives the rubber-covered roll pass through ultrasonic cleaning grove, spray groove, heat wind drying groove sequentially, the ultrasonic cleaning grove is equipped with ultrasonic transducer to generating ultrasonic wave cleaning rubber-covered roll, the spray groove sprays water to washing rubber-covered roll and the heat wind drying groove blows the rubber-covered roll; the invention not only has high cleaning efficiency, stable quality and no injury to rubber-covered roll, but also has low labor intensity, no harm for operator body and low cleaning cost.

Surface modification layers and associated heat treatments, that may be provided on a sheet, a carrier, or both, to control both room-temperature van der Waals (and/or hydrogen) bonding and high temperature covalent bonding between the thin sheet and carrier. The room-temperature bonding is controlled so as to be sufficient to hold the thin sheet and carrier together during vacuum processing, wet processing, and/or ultrasonic cleaning processing, for example. And at the same time, the high temperature covalent bonding is controlled so as to prevent a permanent bond between the thin sheet and carrier during high temperature processing, as well as maintain a sufficient bond to prevent delamination during high temperature processing.

The invention relates to a cleaning method for cleaning quartz part surface in a polycrystal etching chamber, and the core of the method is that ionized water is adopted to clean the quartz part surface and clean high pressure air is applied to blowing and drying the surface of the quartz part; then at least an organic solvent is adopted to clean the quartz part surface and next alkali solvent is used for cleaning the surface which is followed by acid solvent; finally ultrasonic wave is adopted to clean the quartz part. Through the cleaning steps the deposited dirt on the quartz part surface can be removed. By adopting the technique in the cleaning of the quartz part surface which is used for a period of time in the polycrystal etching chamber, the contamination can be completely removed without any damage to the quartz part surface and the quartz part after being cleaned can fully meet the normal technique requirements.

The invention provides a soymilk grinder with an ultrasonic wave device. An ultrasonic transducer extends into a cup body from the machine head (or cup cover) or the outside of a cup body to convert a high-frequency electrical signal generated by an ultrasonic wave generator into high-frequency mechanical oscillation to generate an 'ultrasonic cavitation' effect in water, so that the soybean residual and attached materials in the cup body and on parts of the machine head are cleaned. The soymilk grinder has a self-cleaning function, so a user can conveniently allow the soymilk grinder to clean automatically. Thus, the difficult soymilk grinder cleaning problem that troubles people for a long time is solved radically, and a particular effect can be produced in a soybean milk cooking process by using the properties of ultrasonic waves.

A flux-cored wire for fusion welding butt joint of a titanium-steel composite board comprises the components in percentage by mass as follows: 80-81% of vanadium powder and 19-20% of chromium powder, and the sum of the mass percentageof the components is 100%. The invention further discloses a preparation method of the flux-cored wire. The preparation method comprises the steps as follows: the vanadium powder and the chromium powder are dry-mixed to obtain flux core powder, the flux core powder is placed on a charging machine of flux-cored wire production equipment, a copper belt is placed on a belt unwinding machine, ultrasonic cleaning is performed, then U-shaped groove rolling and powder adding operations are performed, the powder filling rate is controlled, sealing of the copper belt is performed through a forming machine, and a wire with the diameter of 3.8 mm is formed; then the flux-cored wire is obtained through six reducing treatment processes and a nine-stage reducing finish drawing treatment process sequentially. By means of the flux-cored wire, a titanium layer and a steel layer weld structure of the composite board can be effectively joined together, and the fusion welding butt joint of the titanium-steel composite board is realized; an obtained weld joint has excellent toughness; and the preparation process is simple, and mass production is facilitated.

The invention discloses a domestic shoe washer. Shoes are placed in a cage type rotary disc or on a shoe rack of a support type rotary disc for rotating and vertically-vibrating washing in an inner cylinder, and dirt on the shoe sole and shoe vamp is removed through constant rinsing and flushing and precipitated into a sand filtration cavity. The domestic shoe washer also has an ultrasonic cleaning function, a rotation dewatering function and a drying function. By arranging an ultraviolet germicidal lamp and ozone degerming equipment, bacteria in shoes can be effectively killed while shoes are cleaned. The domestic shoe washer is convenient to use and sanitary.

The invention discloses a graphene oxide/polymer composite antibacterial material and a preparation method thereof. The composite antibacterial material is characterized in that a polymer is subjected to surface modification and then is combined with graphene oxide dispersed in water, thus obtaining a graphene oxide antibacterial coating bonded on a polymer matrix, wherein the thickness of the antibacterial coating is 1 to 50nm. The preparation method of the graphene oxide/polymer composite antibacterial material comprises the following steps: firstly, performing ultrasonic cleaning on the polymer; secondly, performing surface modification on the polymer subjected to ultrasonic cleaning; thirdly, immersing an activated polymer matrix into a coupling agent solution and soaking; fourthly, taking out the soaked polymer, leaching with deionized water, then putting into a graphene oxide suspension liquid for 0.2 to 24 hours, taking out, leaching and naturally drying in air to obtain the graphene oxide/polymer composite antibacterial material. The invention designs and prepares the composite antibacterial material by taking graphene oxide as an antibacterial ingredient; the composite antibacterial material has a transparent antibacterial layer, is excellent in antibacterial property and is firmly bonded with the matrix.