65results about How to "Solve moldy" patented technology

The invention provides a float valve, a pot cover and a pressure cooker. The float valve includes a valve seat (1), a float (2) and a sealing connection part (3), the valve seat (1) is provided with a guide hole (4), and the float (2) is slidably arranged in the guide hole (4), The sealing connection part (3) is arranged on the outer side of the valve seat (1), and the sealing connection part (3) includes a movable part (5) forming a movable space with the bottom of the valve seat (1), and one end of the float (2) stops Blocking the valve seat (1), the other end is sealed and fixedly connected with the movable part (5) of the sealing connection part (3), and the movable part (5) moves together with the float (2). According to the float valve of the present invention, the problems in the prior art that the electric pressure cooker is used for a long time will cause mildew and odor inside the pot cover, and even cause the pot cover to deform.

The invention relates to a preparation method of a hydrophobic activated carbon modified material. The hydrophobic activated carbon modified material is prepared by taking ethyl orthosilicate as an additive, hexadecyltrimethoxysilane as a modifier, and anhydrous ethanol as a solvent, and carrying out liquid-phase impregnation, suction filtration and drying on activated carbon. The preparation method provided by the invention has the advantages of being simple in process and mild in conditions, and the hydrophobic activated carbon modified material can be prepared under the condition of room temperature; and the modified activated carbon is good in hydrophobic effect, stable in property and good in repeatability, the hydrophobic property can be restored only by simply drying, especially the defects that porous activated carbon produces bacteria and mildews in a humidity environment and has reduced absorption capability for target pollutants due to moisture absorption are overcome, and economic and technical effects are remarkable.

The invention relates to a method for preparing photocatalyst nanometer wood-plastic boards. The method comprises the following steps: a) 50 to 100 portions by weight of wood meal and 2 to 4 portions by weight of aluminum-zirconium treatment agent are added in turn to a horizontal stirrer and stirred for 2 to 3 hours at a temperature between 100 and 120 DEG C; b) the treated wood meal and resin are put into a high-speed kneader in the mass ratio of 1:2, mixed with 7 to 40 portions by weight of additive, and are stirred for 10 to 15 minutes at the temperature between 100 and 120 DEG C, unloaded to a low-speed mixer and stirred to normal temperature; c) the mixed materials are put into a board extrusion device and subjected to vacuum and cooling setting and two-roller calendering setting so as to product a board, and the board is cut with fixed-length; and d) the surface of the board is sprayed with a layer of photocatalyst nanometer material, so as to obtain a finished product. The method has the advantages of low cost, extensive resource and good decorative effect, and more importantly, the method can utilize natural light to sterilize, thereby achieving the effect of purifying air.

A cabinet body manufacture technique includes steps of a, processing a left side board and a right side board; b, processing a bottom board, a rear back integral board and a front transverse head; c, assembling the left side board, the right side board, the bottom board, the rear back integral board and the front cross head into a cabinet body. The cabinet body manufacture technique is characterized in that the left side board in the step a is formed by bending a stainless steel board being divided into two units by two V-shaped grooves arranged in the middle of the stainless steel board. Each unit has four faces including a middle face and three other faces surrounding the middle face. The other three faces need dadoing and then bending. The two units after bending are combined together. The cabinet body manufacture technique has beneficial effects that no wood block is needed, so that advantages of a fire-proof effect, a moisture-proof effect and an insect prevention effect are achieved; the cabinet body gaps are small, so that water permeation is avoided and expansion and mouldiness are avoided.

The invention relates to an oyster attachment substrate technology, in particular to a cement concrete oyster attachment substrate with a rough surface and a preparation method, and belongs to the crossing field of marine sessile organisms and marine concrete. The attachment substrate comprises the following components: a cementing material, a light coarse aggregate, a light fine aggregate, water,dark pigment, biological calcium powder, calcium carbonate powder, trace elements, chopped fibers and a superplasticizer. According to the invention, dilute acid modification and composite grinding technologies are adopted; the inducibility of bovine bone meal is fully exerted, the mixing amount of the bovine bone meal is greatly reduced, anti-corrosion treatment and modification are carried out,a composite inducer with the bovine bone meal as the main component is achieved, the mixing amount is small, the strength and permeability of concrete are hardly affected, meanwhile, the oyster larvaadhesion capacity is very high, and the mildewing problem of the concrete is solved. Compared with concrete without an inducer, the concrete doped with the inducer has the advantage that the attachment number of oyster larvae is obviously increased.

The invention discloses a cold supply, dehumidification and temperature adjustment component of a radiation heat exchanger. The component comprises a cold source, a circulating pump, a fan pipe coil with function of removing condensed water, the radiation heat exchanger, a connecting pipeline and a working substance. The component is characterized in that the fan pipe coil with the function of removing the condensed water and the radiation heat exchanger are arranged in the same ventilated room. In cold supply, low-temperature fluid passes through the fan pipe coil with the function of removing the condensed water and carries out treatments of cooling, dehumidification and dew point depression on air circulating on the surface of an outer wing of the fan pipe coil. On the premise of ensuring no risk of condensed dew on the surface of the radiation heat exchanger, the component effectively reduces the temperature of the low-temperature fluid entering the radiation heat exchanger, increases the cold supply quantity of the radiation heat exchanger and improves the comfort of cold supply.

The invention discloses a processing method for mildew prevention of an inside machine not turned on in a heating process of a direct-current frequency-conversion multiple online air-conditioning system, specifically comprising the following steps of: (1) running an indoor fan which is not turned on in a low wind shift for 1-2min for pre-drying after a defrosting end mark or a system heating oil return end mark is detected for 3-5min by the inside machine which is not turned on when the system is in the heating process; and (2) re-running the indoor fan which is not turned on in a low wind shift for 1-2min after the defrosting end mark or the system heating oil return end mark is detected for 10-15min by the inside machine which is not turned on when the system is in the heating process. The invention has the advantages of effectively drying condensed water on the inside machine which is not turned on to prevent the inside machine from mildewing and producing peculiar smell so that the normal use of a controller and the health of users can be ensured.

The invention discloses artificially-synthesized feed added with vegetable ingredients for athetis dissimilis hampson and a feeding method of the artificially-synthesized feed, and belongs to the insect feeding technology. The feed is formed in the way that wheat bran and malt flour are used as main ingredients, and other auxiliary materials such as soybean flour, corn flour and peptone are added. The feed of a certain proportion is used for feeding the athetis dissimilis hampson, and brassicaceous vegetables are added in the feeding process so as to supplement nutrition. The average pupa weight of the athetis dissimilis hampson reaches 87.68 mg, the average survival rate of larvae is 93.8%, the percentage of pupation is 95.8%, the eclosion rate is 100%, and the average number of single-female oviposition is 763.95. Compared with natural feed (maize seedlings), the survival rate of the larvae, the pupa weight and the average oviposition quantity of the athetis dissimilis hampson on the aspect of artificial feed are improved obviously, the developmental duration of the larvae and the pupa duration are shortened remarkably, and no significant difference exists on the index aspects of the percentage of pupation, the eclosion rate, the oviposition earlier-stage condition and the like. Moreover, the feed cannot be affected by seasons, and the feed cannot contain residual components such as pesticide, either.

A heating and cooling module using a thermoelectric module is disclosed. The heating and cooling module includes a thermoelectric module; a first impeller for sucking outside air and blowing air to afirst flow path passing through a cooling side of the thermoelectric module; and a second impeller for sucking outside air and blowing air to a second flow path passing through a heating side of the thermoelectric module, and the air blown by the first impeller is moved only to the first flow path.

The invention discloses artificial synthesized feed for proxenuslepigone moschler and a preparation method thereof. The feed adopts wheat bran and mushroom powder as main components and comprises whole meal flour, peptone, and other auxiliary materials. The proxenuslepigone moschler which is fed by the feed in a certain ratio has significantly improved survival rate, pupation rate, eclosion rate and single-female egg laying amount. The feed cannot be influenced by seasons and is free from pesticide or other residual components. In addition, the feed is prepared by a microwave oven with simple operation, the preparation amount can be controlled and the feed can be prepared when needed, thereby improving the feed utilization rate and solving a problem that too much feed is prepared for one time and needs to be stored in a refrigerator.

The invention discloses drying equipment for flos chrysanthemi indici. The drying equipment comprises a drying box and a control cabinet; an exhaust pipe is arranged on the top of the drying box; a humidity sensor is arranged on the right side surface of the exhaust pipe; a plurality of shelves are arranged in the drying box; a temperature sensor is arranged at the left upper corner in the drying box at the same time; a display screen is arranged at the upper part of the control cabinet; a function key is arranged on the right side of the display screen; a single chip microcomputer is arranged under the function key; and a fan is arranged at the right lower corner of the bottom of the control cabinet. By adopting the drying equipment provided by the invention, by arranging the shelves, the flos chrysanthemi indici is placed on each shelf and is dried so as to be ensured to be wholly dried; by arranging the temperature sensor and the humidity sensor to be matched with the display screen, the temperature and the humidity in the drying box are grasped in real time; and meanwhile, by matching the arranged single chip microcomputer with the function key, the temperature and the humidity in the drying box can be regulated and controlled so as to be controllable, and efficient and accurate drying of the flos chrysanthemi indici is faciliated.

The invention relates to a technology for inducing adhesion of marine attaching organisms, particularly to environmentally-friendly concrete for inducing adhesion of marine attaching organisms, and apreparation method thereof, and belongs to the field of crossing of marine attaching organisms and marine concrete. The environmentally-friendly concrete comprises the following components: a cementing material, gravels, sand, water, a dark pigment, biological calcium powder, biological calcium carbonate particles, carbonate and a superplasticizer. According to the invention, rapid construction ofengineering can be realized, and the environmentally-friendlyconcrete has high impermeability and high corrosion resistance, especially has high sulfate corrosion resistance, and has significant advantages in ocean engineering and engineering needing rapid repair.

The invention discloses high-nutritive value alfalfa and a preparation method thereof. The preparation method of the high-nutritive value alfalfa comprises the following steps: putting a plurality of alfalfa bundles at intervals, placing two air blowers at two sides of the alfalfa bundles, and drying the alfalfa bundles by virtue of the air blower. The preparation method has the advantages that (1) the alfalfa can be dried within a short time by virtue of the method, so that the problem that the alfalfa is mildewed by virtue of natural drying when being harvested in rainy seasons; (2) stems and leaves of the alfalfa are dried uniformly by virtue of the preparation method disclosed by the invention, so that the problem that the leaves are greatly lost when being harvested is avoided, and the protein loss ratio is greatly reduced; (3) the nutritive value of the alfalfa is maximally utilized, the quality of the alfalfa is ensure; (4) the yield of the alfalfa is increased; (5) the economic value of planting the alfalfa is increased.

The invention belongs to the technical field of wood bamboo material surface coating modification, and discloses a wood bamboo material with a super-hydrophobic mildew-proof anticorrosive coating anda preparation method thereof. The wood bamboo material is prepared by performing air-drying on the wood bamboo material until the moisture content is 8 to 14 percent; in a stirring state, titrating amethyl silicate solution to the pH of 8 to 12 by using a copper-containing solution; continuously stirring to obtain a super-hydrophobic mildew-proof anticorrosive suspension after the titrating is stopped; in the stirring state, impregnating the air-dried wood bamboo material in the super-hydrophobic mildew-proof anticorrosive suspension, and drying the wood bamboo material at 60 to 160 DEG C. The wood bamboo material has the advantages of super-hydrophobicity, proofing mildew and preventing corrosion; moreover, the raw materials are cheap and easily obtained. According to the preparation method, the problems of water absorption and mildew in the storage and transportation processes of the wood bamboo material and other fibre-based materials; the size stability of a wood bamboo product iseffectively maintained; the erosion degree of microorganisms is reduced, so that the application range of the wood bamboo material and other fibre-based materials is expanded, the service life is prolonged, and the application prospect is great.

The invention provides a fresh-keeping storage method of fresh walnut with green husk removed. The method includes harvesting when the maturity of walnut green fruits is 90%, removing green husk of green fruits without diseases and insect pests, cleaning and drying until the moisture content of nuts is 25-31%; when the moisture content of kernels is 19-22%, precooling for 24 hours under the conditions of light avoiding, ventilation and temperature of 0 DEG C; sealing in a self-regulating atmosphere bag, and storing under the conditions of light protection, ventilation and temperature of -10 DEG C; when the walnut is taken out of a warehouse for direct consumption, placing the walnut in an open manner for 2-3 hours under the condition of light avoiding and normal temperature; and when the walnut is taken out of the warehouse for transportation, taking the frozen fresh walnut with green husk removed out of the warehouse for cold chain packaging and transportation for consumption. The method solves the problems of mould, sticky and dehydration of seed shells occurring in the fresh-keeping storage process of the fresh walnut with the green husk removed, reduces the loss of walnut water, reduces the microbial pollution on the surface of the fresh walnut with the green husk removed, ensures the flavor and edible property of the fresh walnut, prolongs the storage time, prolongs the supply time of the walnut and overcomes the seasonal defect.

The present invention relates to a longan fruit fresh-keeping technology, wherein a self-made fruit and vegetable fresh-keeping agent is prepared and comprises, by weight, 0.6-1.0% of citric acid, 0.6-0.8% of potassium permanganate, 1.0-1.3% of tea polyphenol, 0.5-1.0% of myristic acid, 0.6-1.0% of sodium benzoate, 0.8-1.2% of aluminum potassium sulfate dodecahydrate, 0.5-0.8% of a preservative, and 93-95% of pure water. The longan fruit fresh-keeping technology comprises: washing longan fruit, sterilizing with ozone, soaking in the fresh-keeping agent, taking out, carrying out natural air drying, loading into a fresh-keeping bag filled with an inert gas, and storing at a room temperature. According to the present invention, with the technology to perform the fresh-keeping on the longan fruit, the fresh-keeping effect is good, and mould development, gassiness, water loss and other problems can be effectively solved; and the used fresh-keeping agent is non-toxic and is not harmful to human health.

The invention provides a multifunctional deodorizing shoe cabinet. The shoe cabinet includes a shoe cabinet body, air vents are formed in the shoe cabinet body at intervals, and the shoe cabinet further includes a drying device, a controller, a sterilization device, an exhaust fan, a power supply, a displayer, a humidity sensor and a foot size measurement device; the bottom of the shoe cabinet body is provided with a wooden plate extending outward in the horizontal direction; the drying device, the sterilization device, the exhaust fan, the power supply, the displayer, the humidity sensor andthe foot size measurement device are electrically connected with the controller. The drying device, the sterilization device, the exhaust fan, the power supply, the controller and the humidity sensorare installed in the shoe cabinet body; the displayer is installed on a shoe cabinet door of the shoe cabinet body; the foot size measurement device includes a bottom pedal, a first infrared distancemeasuring sensor and a second infrared distance measuring sensor, by putting one foot between the first infrared distance measuring sensor and the second infrared distance measuring sensor, the foot size can be measured automatically, and the measured size is displayed on the displayer.

The invention discloses a novel multi-functional floor drain structure and a construction method thereof. The floor drain structure comprises a main floor drain body, wherein a water drain pipe is arranged at the middle of the bottom of the main floor drain body, and a settling zone is formed in the outer side of the water drain pipe; outer threads of the lower part of a bracket are matched with inner threads of the inner wall of the main floor drain body so as to fix the bracket on the main floor drain body, and a floor drain lid tray is arranged above the bracket; the middle of the floor drain lid tray is provided with a drain hole, and the upper end of the main floor drain body extends outward to form an oblique diversion edge; the outer wall of the upper part of the water drain pipe is provided with threads, and the lower part of an odor-resistant lid is provided with inward bulges; threads on the upper surface of the bulges are matched with the threads on the outer wall of the upper portion of the water drain pipe so as to fix the odor-resistant lid on the main floor drain body. The waterproof and deodorant purposes are achieved, and the problems of an poor drainage effect, blockage and maintenance of a same floor, mildewing of retention water, mildewing of walls caused by water seepage of the retention water, and pipeline blockage caused by fall-into objects or man-made destruction are solved.

This invention provides a double fixation board curtain wall. It includes board, back fixed nount, fixed hanging device, board hanging device, seal material, coupling bar. Board hanging device is consisted by board coupling hook, back depending board, back hook. There is open slot on side of board, and board coupling hook is inserted in the slot, back depending board is fixed dorsal side of board, coupling hook is inserted in board hole through the hanging device back depending coupling hole, board hanging device is connected to board to form one integer. Hanging device shoe plate is set on back fixed hanging device, up board hanging device back hook is fixed on down shoe plate of back fixed hanging device, down board hanging device back hook is fixed on up shoe plate of back fixed hanging device.

The invention discloses an anti-humid office intelligent file storage cabinet. The cabinet comprises a cabinet box, the rear side of the inner wall of the cabinet box is fixedly connected with a placement board, both sides of the top of the placement board are fixedly connected with limiting boards, and the front surface of the cabinet box is rotatably connected to a cabinet door by a hinge. Through the mutual cooperation of a display screen, a processor, a humidity sensor, a data storage card, a through groove, a flash lamp, a buzzer, a box, a heat conducting block, a heating tube, a heatingwire, a motor, a rotating shaft, a fan blade, a support leg and a non-slip mat, the advantage of moisture prevention is achieved, the problem that an existing office intelligent file storage cabinet does not have the function of preventing moisture, which causes the mildew of files is solved, so that the files are stored in the storage cabinet for a long time, the moisture in the air is reduced, it is ensured that the files do not easily mold, the loss of office workers is reduced, and the practicality of the office intelligent file storage cabinet is improved.

The invention discloses a flame-retardant and mildew-proof heat preservation material for refrigeration equipment, which comprises the following raw materials in parts by weight: 14-18 parts of alkali-free glass fiber, 10-14 parts of hollow glass micropowder, 120-160 parts of polytetrahydrofuran glycol, polytetrahydrofuran glycol 120-160 parts, 30-40 parts of ester polyol, 3-5 parts of foaming agent, 15-25 parts of flame retardant additive, 2-4 parts of foam stabilizer, 1-3 parts of catalyst, 4-6 parts of anti-mold and fungicide, mineral filling 13‑17 parts, 5‑7 parts of coupling agent. The thermal insulation material of the present invention has low thermal conductivity, excellent thermal insulation performance, good mechanical strength, excellent uniformity, air permeability, elastic recovery rate, and in addition, the material has strong flame retardancy and bactericidal and anti-mildew effects At the same time, the raw material components of the present invention are safe and reliable, have no pollution to the environment, have low cost, and are simple in process, and have high practical value and good application prospects when used as insulation materials for refrigeration equipment.

The invention relates to the technical field of poultry cultivation, and specifically relates to a silky baby chick disease resisting method. The method comprises baby chick selection and baby chick management. In the baby chick selection step, healthy, lively and active baby chicken with crisp sound, large and bright eyes, elastic bodies and firm legs are selected, wherein the chicken should be sensitive to the surrounding environment, and their umbilical parts shrink well according to the touch. The baby chick management step comprises the following steps: a brooding room is disinfected; a homemade litter composed of grapefruit peels, quicklime, cinnamon and jasmine orange is laid in the brooding room; the baby chicken are fed with nutrient liquid prepared with cabbage juice and water with a certain ratio; feeding frequencies for baby chicken at different week ages are managed; the temperature and humidity ranges are managed; and illumination time is managed. According to the invention, baby chick selection and management are improved. The cultivation manner and environment are improved, such that silky baby chick disease resistance is improved, and silky cultivation economic benefit can be better improved.

The invention discloses a ventilation method applied to a vehicle. The method includes the steps that a power-off signal generated when an ignition switch leaves an ON gear is obtained; an evaporatortemperature t1 is acquired; whether vapor can be condensed on the surface of an evaporator or not is judged according to the condition whether the evaporator temperature t1 is smaller than a preset condensation temperature or not, if the evaporator temperature t1 is smaller than the preset condensation temperature, the vapor can be condensed on the surface of the evaporator, and a next step is conducted; and a ventilation circulation mode is controlled to be an outer circulation mode, and air is blown. The above method is mainly used for power-off mildew removal of the vehicle, the problem that the evaporator of an air conditioner is mildewed is solved, the method is further used for ventilating the inside of the vehicle to reduce the temperature, and the problems that the temperature in the vehicle is too high and harmful gases are gathered are solved. In addition, the invention discloses a ventilation system and the vehicle comprising the above ventilation system.

The invention discloses a thermal insulation wall and a construction process thereof, and belongs to the technical field of thermal insulation materials and constructions. The thermal insulation wallcomprises a pressure bearing layer, a curing coating layer, wooden keels and thermal insulation layers which are arranged in sequence, the curing coating layer is coated on a concrete structure layer,the wooden keels are adhered to the curing coating layer, and the middles of the wooden keels are coated with the thermal insulation layers. The construction process of the thermal insulation wall comprises the steps of base surface treatment, reinforcement treatment, line snapping, wood keel installation, wood keel reinforcement and thermal insulation layer spraying. According to the thermal insulation wall and the construction process thereof, the problem of condensed water on the wall surface is solved, the possibility of mildewing of wood keels and other building materials is reduced, theinfluence of the soil temperature on the room temperature is reduced, and the energy consumption of an air conditioner or a floor heater used by a house is reduced.

The embodiment of the invention provides a damp-proof, anti-falling and spot-rust-free interface agent and a preparation method thereof. The damp-proof, anti-falling and spot-rust-free interface agentcan be used immediately after being opened, is quick to construct, has high adhesion strength, can integrate nail hole rust prevention and interface treatment functions, only needs to be applied in abrushing manner one time, is easy to construct, saves the work hour, and effectively solves the problems of mildewing, yellowing, cracking and falling of putty and emulsion paints, caused by rustingof nail holes in various composite boards such as suspended ceilings and moisture regaining of cement and other base layers. Hydroxyethyl cellulose and a thickening agent generate compound synergisticeffects, so the storage stability of the whole system is improved through synergistic thickening, and the interface agent can be stored for 30 days without layering.

The application discloses a formaldehyde removal material and a preparation method and application thereof. The formaldehyde removal material is made from, by weight, 10-60 parts of plant polyphenols,10-60 parts of alumina and 10-80 parts of a silicate mineral. The application also discloses the preparation method of the formaldehyde removal material, and application of the formaldehyde removal material as a filter element material for air filters or in purifying air in furniture. The application is mainly intended to provide the plant polyphenol material for formaldehyde removal to solve thetechnical problem that existing activated carbon products for formaldehyde removal experience mildew and sourness after a period of time of use, and also solve the problem that the prior chemical preparations for formaldehyde removal are corrosive, have irritating odor, have unstable physical and chemical indexes at normal temperature and cause harm to human bodies during production.

The invention mainly relates to the technical field of artificial board machining, and discloses a preparation method of a natural mildew-proof sound-insulation density board. The preparation method comprises the steps of wood crushing, drying, raw material mixing, glue applying and hot pressing. The preparation method of the natural mildew-proof sound-insulation density board has a natural mildew-proof function, the mildew-proof rate reaches 90.4%, and sound insulation can be effectively performed; the wood is cut into long sections, the sections are soaked in an acetic acid liquid, the length of wood fibers can be prolonged, the problems that the strength of a density board is low due to short fibers and the structure of the density board is uneven due to long fibers can be avoided, andthe strength and practicability of the density board are improved; and the wood sections are subjected to freezing and drying after being soaked, so that the porosity of the sections is increased, breaking of the fibers is reduced during longitudinal rolling, and the strength of the density board is improved.

The invention discloses a total heat exchange graphene nanofiber membrane and a preparation method thereof, wherein the total heat exchange graphene nanofiber membrane comprises a film-forming matrix and a heat-conducting component, and the film-forming matrix is ​​ethylene-vinyl alcohol copolymer. The invention prolongs the service life of the heat exchange core and avoids the mildew problem of the heat exchange core caused by the water absorption of the paper film.

The invention provides an artificial pearl paint containing photocatalyst and a method of preparing the paint and a method of painting; the method is characterized by comprising the steps of: executing hydro-thermal synthesis reaction on mixture composed by components such as xylonite, nitrocellulose, butyl acetate, acetone, pearl pigment, etc., mixing the obtained photocatalyst according to a certain ratio, preparing coating for artificial pearl paint. The invention uses the methods of immersion painting and sprayed painting to paint the fives coatings such as xylonite, nitrocellulose, butyl acetate, acetone, pearl pigment, etc. on the pearl nucleus by immersion painting and sprayed painting mode. The invention uses innocuous photocatalyst having stable chemical properties, difficult to be corroded by acid, alkali or organic solvent, which effectively preventing the environmental problem and skin sensibility problem caused by largely using organic solvents. The invention solves the problem of mildew and bacterial reproduction of the pearl products and has low production cost.

The invention discloses a polyester powder coating with the sterilizing effect and a preparation method and application thereof.The coating is prepared from, by weight, 55-60 parts of hydroxyl polyester resin, 9-12 parts of aliphatic polyisocyanate, 1-20 parts of a citri reticulatae viride extract, 5-10 parts of anatase nano-titanium dioxide, 1.0-1.5 parts of a flatting agent SF-7, 0.5-1 part of benzoin, 1-2 parts of an antioxidant 1010, 1-10 parts of ammonium salt, 0-10 parts of pigments and 1-20 parts of a chingma abutilon seed extract.The polyester powder coating is prepared through the steps of preparing of the citri reticulatae viride extract, preparing of the chingma abutilon seed extract, mixing and crushing, extruding and sieving.The coating is reasonable in preparation, low in preparation cost, high in finished product activity, good in sterilizing effect and capable of solving a series of problems such as product demulsifying, going bad, mildewing, fermenting and stinking which are caused by bacterial contamination.