66results about How to "With repair function" patented technology

The present invention provides composite lithium-based lubricating grease and a preparation method thereof. The composite lithium-based lubricating grease consists of thickener, base oil and additive. The thickener consists of 12-hydroxy stearic acid lithium dibasic acid and / or lithium borate, and the mol ratio is 1 ®U 0.1 to 1 ®U 0.1to 1. The base oil is mineral oil or poly-alpha-olefin synthesis oil. The additive consists of organic amine compound antioxidant, benzotriazole and barium petroleum sulfonate or barium dinonylnaphthalene sulfonate anti-corrosion additive and rust protection agent, dialkyl dithiocarbamate or dibenzyl disulfide and sulfurized olefin cottonseed oil extreme pressure antiwear additive and nanometer copper powder repairing additive. The contents of the thickener and the base oil are respectively 6 percent to 18 percent and 82 percent to 94 percent according to the weight percentage. The lubricating grease has the multi-effect performances of high dripping point, good high-temperature performance and low-temperature performance, chemical invariability, colloid invariability, antiwear extreme pressure performance etc., and especially has the repairing function towards a damaged bearing.

The invention discloses a multistage intelligent charging method which is suitable for rechargeable batteries. The multistage intelligent charging method comprises a diagnosis step of detecting the voltage of a battery, a soft starting step of enabling charging current to slowly rise from low to high, steps of performing charging under constant current I, charging under constant current II, charging under constant current III, charging under constant voltage, full charging and recharging, and steps of performing pulse devulcanization, precharging and high-voltage restoration. The multistage intelligent charging method has the precharging function and the soft starting function, so that damage, caused by high current, to the normal battery can be alleviated, and the service life of the battery can be prolonged; due to the devulcanization function, the capacity of a battery which is severely vulcanized can be improved; by virtue of the restoration function, the capacity of an aged battery can be recovered.

The invention discloses a lubricating oil wear resistant additive. The lubricating oil wear resistant additive comprises, by mass, 70-80% of base oil, 5-10% of organic molybdate, 1-3% of sorbitan monooleate, 0.7-0.8% of zinc diamyldithiocarbamate, 1-3% of nanometer graphene, and the balance of additives. The lubricating oil wear resistant additive has wear resistance and reduction effects on various lubricating oils, has a restoration function, can reduce the mechanical work noise and power loss, and is suitable for any brand of machine oils, gear oils, hydraulic oils, track oils and other lubricating oils. The invention also discloses a preparation method of the lubricating oil wear resistant additive. The method comprises the following steps: mixing nanometer graphene with sorbitan monooleate, carrying out ultrasonic dispersion, adding base oil, organic molybdate, zinc diamyldithiocarbamate and the additives, and uniformly stirring. The preparation method has the advantages of simple process steps, low cost, and suitableness for industrial production.

The invention discloses a preparation method of graphene functional lubricating oil. The preparation method comprises the following steps: S1. respectively dissolving zinc acetate and thioacetamide in water to prepare solutions; S2. mixing the zinc acetate solution and the thioacetamide solution with dialkyl dithiophosphate and hydrazine hydrate to react and then separating, washing and drying an obtained precipitate, thus obtaining dialkyl dithiophosphate modified nano zinc sulfide; S3. stirring nano graphene, nano molybdenum disulfide, nano borate and a coupling agent to mix the materials to obtain coupling agent modified nano composite powder; and S4. adding dialkyl dithiophosphate modified nano zinc sulfide obtained in the step S2 to base oil, adding the coupling agent modified nano composite powder obtained in the step S3 to the base oil, stirring the materials at a high speed at a certain temperature and then restoring the temperature to the normal temperature, thus obtaining the graphene functional lubricating oil. The prepared lubricating oil has excellent antifriction and antiwear properties and high bearing capacity and has the function of repairing worn surfaces.

The invention discloses a compound fertilizer capable of reducing cadmium lead content of vegetables in a slightly contaminated vegetable field and a preparation method thereof. The compound fertilizer is prepared from urea, ammonium chloride, ammonium nitrate, diammonium phosphate, a nitric phosphate potassium fertilizer, a calcium magnesium phosphate fertilizer, potassium chloride, sepiolite, kaolin, bentonite and power plant slag in a ratio. The preparation method for the compound fertilizer comprises the following steps of: A, preparing the sepiolite; B, preparing the kaolin; C, preparing the bentonite; D, preparing the power plant slag; and E, mixing the raw materials prepared in the steps A, B, C and D with the urea, the ammonium chloride, the ammonium nitrate, the diammonium phosphate, the nitric phosphate potassium fertilizer, the calcium magnesium phosphate fertilizer and the potassium chloride in the ratio, and performing production processing to prepare the compound fertilizer. The compound fertilizer is mainly characterized by comprising 36.5 to 43.5 percent of passivator which can effectively reduce active state cadmium lead content of soil and cadmium lead content of the vegetables, and 30 percent of nutrients of nitrogen, phosphorus and potassium, so that the active state cadmium and lead contents of the soil in the slightly contaminated vegetable field are reduced by 41.3 to 52.3 percent and 36.0 to 58.5 percent respectively, the cadmium content and the lead content of vegetable products are reduced by 30.1 to 52.8 percent and 27.9 to 51.0 percent respectively, and the compound fertilizer is suitable to be popularized and applied to many heavy metal contaminated areas.

The invention discloses a sunscreen cream with cooling and restoring function. The sunscreen scream comprises the following components in percentage by weight: 17-35% of oils, 20-39% of sunscreen agent, 0.4-0.7% of preservative, 2-7% of stabilizing agent, 2-4% of thickening agent, 7-15% of emulsifying agent, 2-4% of dispersing agent, 0.1% of essence, 0.1% of citric acid, 3-6% of Aloe vera, 0.5-0.8% of allantoin, 1-2% of bisabolol, 1-2% of vitamin E derivatives, 1-2% of menthol and the balance of de-ionized water. The problems existing in the prior art are solved, and the sunscreen cream with cooling and restoring function and good sunscreen effect is provided.

The invention relates to a lip balm with a sunscreen moistening function. The lip balm comprises a plant component, wax, oil, a medicinal component and an additive and is characterized in that the wax is plant wax, and the oil is plant oil; and based on mass percentage, the plant component accounts for 20-30%, the wax accounts for 20-35%, the oil accounts for 30-45%, the medicinal component accounts for 5-15%, and the additive accounts for the balance. In the lip balm provided by the invention, the main components are all natural plant components; and the lip balm has the functions of sunscreen, repairing and treatment as well as a prevention function, is natural and healthy, is mild without irritation and avoids side effects.

The invention discloses a preparation method of functional lubricating oil, which comprises the following steps: 1) respectively dissolving zinc acetate and thioacetamide into water to prepare solutions; 2) carrying out hybrid reacting of the zinc acetate solution and the thioacetamide solution with dialkyl phosphorodithioate and hydrazine hydrate, and separating, washing and drying the obtained precipitate to obtain the nanometer zinc sulfide modified by the dialkyl phosphorodithioate; 3) stirring and mixing nanometer molybdenum disulfide and nanometer borate with a coupling agent to obtain the coupling agent modified nanometer composite powder; and 4) adding the nanometer zinc sulfide modified by the dialkyl phosphorodithioate obtained in the step 2) in base oil, adding the coupling agent modified nanometer composite powder obtained in the step 3) in the base oil, and successfully blending to obtain the lubricating oil. The functional lubricating oil disclosed by the invention is excellent in antifriction and abrasive resistance, high in bearing capacity, and has a repairing function on the abraded surface.

The invention relates to the technical field of masks, particularly an effective ingredient formula of a whitening and wrinkle-smoothing mask. A natural plant Dendrobium officinale, rice milk, towel gourds, giant salamander mucus, wild camellia oil, pseudo-ginseng, liquorice roots and musk are taken as raw materials, the ratio of various raw material ingredients is designed, so that effective ingredients in the various raw material ingredients have the synergistic effect, moisturizing and sterilizing effects for skin are improved, melanin, wrinkles and the like in skin surfaces are improved, and the skin is whitened; besides, the skin can be supplemented with nutrient substances, so that the skin has the repair function, and the wrinkles are smoothed.

The invention provides a charger, including: EMC filter circuit, high-voltage rectification and filter circuit, high-frequency isolation step-down circuit, field effect tube control circuit, PWM controller, feedback circuit, constant current and constant voltage control circuit, MCU controller and the charging output terminal; the field effect tube control circuit is used to control whether the charging output terminal is output normally; the PWM controller is used to generate short moment waves to push the power output of the subsequent stage circuit; the constant current and constant voltage control circuit is used to control the said charging output terminal. The charging output terminal outputs constant current or constant voltage; the MCU controller is used to sequentially realize the charging modes of error battery detection, desulfurization, small current pre-charging, constant current charging, constant voltage charging, analysis stage voltage, floating charging, and pulse charging. The charger has multiple charging modes, high charging efficiency, low power loss, and long battery life.

The invention discloses a control system for a desk type reflow soldering machine. The control system for the desk type reflow soldering machine comprises a controller 1, an upper computer, a solid state relay, a transformer, a switch and a temperature sensor, wherein the solid state relay carries out an automatic adjustment on the power of a heating element under the control of the controller, the transformer carries out the automatic adjustment on the voltage of a hot air machine under the control of the controller 1, the switch is used for control of on-off of an air cooler and the temperature sensor carries out a real-time detection on the temperature inside a furnace of a controlled reflow soldering machine. The solid state relay and the heating element are connected to form a heating system. The transformer and the hot air machine are connected to form a hot air circulating system. The switch and the air cooler are connected to form a refrigerating system. The upper computer, the temperature sensor, the solid state relay, the transformer and the switch are connected with the controller. The control system for the desk-type reflow soldering machine is simple in structure and convenient to operate. A mixed heating mode combined the hot air and an infrared is forcibly used to achieve the welding work under the static state, so the fully automated operation of the whole technique process is achieved.

The invention discloses gasoline engine oil with a repairing function and an exhaust reducing function for an old vehicle. The gasoline engine oil is prepared from, by weight, 7.5%-12.5% of gasoline engine oil compound agent, 0.2%-0.5% of pour point depressant, 5%-12% of viscosity index improver, 0.3%-1% of antiwear agent, 0.002%-0.005% of anti-foaming agent and the balance base oil. According to the gasoline engine oil with the repairing function and the exhaust reducing function for the old vehicle, the base oil adopts high-viscosity polyester, and due to the fact that ester oil contains ester groups and has high polarity, physical bonds can be formed on the metal surface; therefore, ester molecules are easily adsorbed on the friction surface to form an oil film which serves as an effective lubricating agent, the oil film formed by high-viscosity polyester is larger in thickness and can effectively seal a gap, produced due to wear, of an engine, improve the sealing property of the engine and repair the engine, and therefore fuel is completely burnt.

The invention belongs to the technical field of polymer materials, and particularly relates to self-repairing modified silicone rubber and a preparation method thereof. According to the silicon rubberand preparation method provided by the invention, a dynamic covalent bond, a polyamide structure and a Si-O-Si chemical bond in the self-repairing polyimide-modified silicone rubber are not only usedas a self-repairing unit but also as a reinforcing and toughening unit to synthesize the high-strength high-toughness copolymer with a repair function; in addition, a reaction can be carried out without a co-solvent in the system, so that the environmental problem caused by release of volatile organic compounds (VOC) during the preparation and use of the self-repairing silicone rubber material isgreatly avoided; and the preparation method is simple and high-efficiency, has controllable reaction conditions, low energy consumption, environmental protection and no pollution, and has higher process operability in subsequent industrial production.

The invention discloses a real-time rubber waterstop monitoring method for an immersed tunnel. By acquiring operation data of the rubber waterstop in the immersed tunnel in real time and comparing the operation data with experiential data of the rubber waterstop so as to analyze real-time operation state of the rubber waterstop, real-time monitoring for the rubber waterstop is realized, faulted rubber waterstop can be maintained or replaced immediately when any abnormality is found, and practical significance is realized for safety operation of the tunnel. The invention further discloses the rubber waterstop which comprises a rubber body with a middle air bag, strengthening curtain cloth for increasing compressive strength of the rubber waterstop is arranged inside rubber of the middle air bag, an air nozzle is arranged on the middle air bag, and an air gauge is arranged outside the air nozzle; the middle air bag penetrates a waterstop body and is connected with the outside via the air nozzle which is provided with the digital-display air gauge, so that relative air exchange and quantified internal pressure adjustment can be performed, and quantified adjustment and control for compression amount of the rubber waterstop are achieved.

The invention discloses a method for preparing a ceramic biological material with an abrasion self-remediation function in an in-vivo environment. The ceramic biological material comprises the following raw materials in percentage by mass: 90-99% of zirconia powder (alumina powder) and 1-10% of metal powder. The method comprises the following steps: putting the raw materials into a planet ball mill, uniformly mixing according to a wet method, drying, and performing hot-pressing sintering at 1100-1800 DEG C for 0.5-3 hours in the presence of an inert atmosphere. The metal doping mass ratio in the prepared ceramic biological material is within 1-10%; when the ceramic biological material is used as a friction accessory (such as an artificial joint and an artificial intervertebral disc) in a human body, because of fiction abrasion and corrosion, a layer of protein biological membrane can be formed on a friction interface, along with friction, the protein biological membrane can be converted into a graphite layer, and friction and abrasion of the ceramic biological material can be effectively reduced. Abrasion remediation of the ceramic biological material can be achieved, and the ceramic biological material is good in abrasion self-remediation function in the human body.

The invention provides an automobile brake pad and a machining method thereof. The automobile brake pad comprises a back plate (10) and a friction body (20) arranged on the back plate (10). The friction body (20) comprises a composite material friction body (21) and powder metallurgy friction blocks (22) mounted on the composite material friction body (21), the composite material friction body (21) is provided with a first friction surface, each powder metallurgy friction block (22) is provided with a second friction surface, and the plane where the first friction surface is positioned coincides with the plane where the second friction surfaces are positioned. The automobile brake pad effectively solves the problem of high replacement frequency due to severe wear of a brake pad in the prior art.

The invention discloses a soil crushing device for agricultural research, belongs to the technical field of agricultural experiments, and solves the problem of small contact area between a crushing rod and soil in an existing device. The device is technically characterized in that the device is characterized by comprising a base and a stirring cavity. A plurality of supporting legs used for supporting the base are fixedly installed at the bottom of the base; the stirring cavity is formed in the upper portion of the base; a driving assembly is arranged at the left side of the stirring cavity;a stirring assembly is arranged in the stirring cavity; the stirring assembly and the driving assembly are fixedly connected through a shaft coupler; and the driving assembly comprises a stirring motor and a storage battery, wherein the storage battery is arranged at the bottom of the stirring motor and electrically connected with the stirring motor through a wire. According to the embodiment of the invention, a hammer crushing assembly and a second crushing knife are arranged, so that sufficient refining of soil in the middle of the stirring cavity is guaranteed; meanwhile, a striking block is arranged, so that blocky soil in the stirring cavity can be crushed, and the fineness of the soil is guaranteed; and the soil crushing device further has a soil remediation function.

The invention provides a USB interface-based unmanned ship system automatic upgrading method. The method comprises the following steps: a key distribution step of distributing a private key and a public key in an unmanned ship system and a mobile storage device respectively; an upgrading file search step of automatically detecting a system upgrading package in the mobile storage device by a to-be-upgraded system in an unmanned ship and decrypting the system upgrading package through the private key; a system version comparison step of comparing a version number of the to-be-upgraded system with a version number of the system upgrading package after successful decryption and performing upgrading file copying operation if a version in the system upgrading package is relatively new; and an upgrading script step of automatically executing related upgrading scripts by the system after successful upgrading file copying. The system upgrading process is relatively simple; during system upgrading, the unmanned ship system is automatically upgraded; the unpredictable situation of information leakage, system false upgrading or the like does not occur; and the system upgrading time is greatlyshortened.

The invention discloses a low-frequency soft-pulse charging circuit which comprises a first switching element S1, a second switching element S2, a third switching element S3, a fourth switching element S4, a fifth switching element S5, a sixth switching element S6, a seventh switching element S7, an eighth switching element S8, a ninth sixth switching element S9, a tenth switching element S10, an eleventh switching element S11, a twelfth switching element S12, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, a fifth diode D5, a sixth diode D6, a seventh diode D7 and an eighth diode D8, wherein each of the switching elements is provided with two terminals; each of the capacitors is provided with a positive electrode and a negative electrode; and each of the diodes is provided with an anode and a cathode. The invention further discloses a low-frequency soft-pulse charging method.

A new EMU roof insulation detection device is composed of a processor, a control / display panel, an inverter, a voltage regulator, a current / voltage sampling module, a step-up transformer, a permanent magnet mechanism, and a vacuum interrupter. The device can be divided into a high-voltage signal generation part and a control part, the former is installed on the roof, and the latter is installed in the electrical cabinet of the car. The invention introduces the composition principle of the insulation detection system, the structure of main units and the characteristics of the new insulation detection system. The device has the function of automatic data storage. These data provide a scientific and accurate basis for judging the insulation performance of the device, and also provide real and reliable reference data for the insulation design of the high-voltage equipment on the roof. reference. The device has the function of repairing the insulation performance degradation of high-voltage equipment caused by pollution and smog, thereby reducing the flashover accidents caused by pollution and smog.

The invention provides a pixel structure. The pixel structure comprises a first pixel unit and a second pixel unit. A first data signal of a source electrode driver can be output to the first pixel unit by a first source electrode line and can be output to the first pixel unit by a first control switch and a second source electrode line. A second data signal of the source electrode driver can be output to the second pixel unit by a second control switch and a second source electrode line or by a third source electrode line. As the second source electrode line can be shared by the first pixel unit and the second pixel unit, the pixel structure not only has self-repair function but also reduces the number of source electrode lines.

The invention discloses a moisturizing and repairing bacterial cellulose mask and a preparation method thereof. The bacterial cellulose mask is prepared by compounding bacterial cellulose and a moisturizing and repairing mask solution. The preparation method comprises the following steps: carrying out low-temperature freeze drying treatment on a purified bacterial cellulose membrane, and infiltrating the dried bacterial cellulose membrane in the moisturizing and repairing mask solution for 24 hours to obtain the moisturizing and repairing bacterial cellulose mask. The moisturizing and repairing bacterial cellulose mask disclosed by the invention not only has good swelling property and biological safety, but also has the properties of adjusting slow release of the mask solution and improving the utilization degree of the mask solution. The mask prepared by the invention is natural and non-irritant, has moisturizing and repairing functions, and can be used for laser treatment postoperative repair.

The invention provides a composite insulator cleaning composition with repairing function, and a preparation method thereof, and belongs to the technical field of cleaning agents. The composite insulator cleaning composition comprises a dirt cleaning agent and an organic silicon rubber repairing agent, does not contain corrosive and forbidden and limited substances, and consists of a surfactant with relatively small surface tension, a permeation wetting agent, a washing assistant, a dust-proof agent, an insulating layer repairing agent and the like. According to the invention, a plurality of organic auxiliary agents cooperate to spontaneously soak and spread on the surface of the insulator with the dirt, so that the dirt falls off from the surface of the insulator, the dirt removing capability is ultrahigh, and the wetting and scrubbing time is obviously shortened; the contained functional organic silicon is deposited on the surface of the composite insulator to form a repairing layer of 2-5 microns, so that the corroded and uneven part of the surface layer is repaired, and the hydrophobicity and hydrophobic mobility of the surface are recovered; and the contained dust-proof agent can effectively reduce the follow-up dirt storage probability of the insulator and prolong the cleaning period.

The invention discloses a corrosion-resistant cable material. The corrosion-resistant cable material comprises, 30-40 parts of nitrile rubber, 30-40 parts of fluororubber, 20-30 parts of acrylate monomer, 20-30 parts of modified imidazole-castor seed oil micro-nano capsule particles, 15-20 parts of silsesquioxane nanoparticles, 10-20 parts of carboxymethyl chitosan, 5-10 parts of octamethyl, 6-9 parts of microcrystalline cellulose, 8-12 parts of a polymer initiator, 3-5 parts of a vulcanization accelerator, and 3-5 parts of a flame retardant. The cable material has an environment change response function, and in case of external mechanical damage, castor seed oil has a repairing function; when the external pH value is changed, modified imidazole has a corrosion resistance function so as toperform double protection on a cable core; and the cable material has an intelligent environment response function, the protection and the repair are carried out aiming at different damages, and thecable material has high corrosion resistance and high insulation property.

The invention discloses a repairable veneer adhesive and a synthesizing method thereof. The repairable veneer adhesive mainly comprises tap water, polyvinyl alcohol, technical gelatin, emulsifying agents, initiating agents, methylacrylic acid, N-hydroxyethyl acrylamide, vinyl acetate, double (N-ethylene-urea-based ethyl) maleate, Bayer waterborne polyurethane resin, plasticizers, buffering agents, antifoaming agents and preservatives. During preparation of the repairable veneer adhesive, firstly, the polyvinyl alcohol and the technical gelatin are used as protective adhesive bodies to synthesize self-crosslinking polyvinyl acetate copolymer modified emulsion, then, a thermal-activation-type polyurethane adhesive DISPERCOLLU54 is added into the copolymer emulsion, and finally, the veneer adhesive which is excellent in performance is prepared. The veneer adhesive has certain repairability. Compared with a traditional urea resin veneer adhesive, the adhesive prepared through the preparation method has the advantages of being repairable, convenient to use and harmless to the environment and human bodies.

The invention discloses a pressure automatic leakage stopping type gate valve, and belongs to the field of gate valves. According to the scheme, the problems that when a valve plate in the gate valve is still closed and is not tight after being closed and leakage occurs, generated air pressure enters pressure inlet holes in two sides and flows into air inlet holes, an expansion air bag expands under the action of pressure, a sealing piece is gradually extruded when the expansion air bag continuously expands upwards, a sealing layer is attached to the surface of the valve plate to plug the gate valve, after the sealing layer is attached to the surface of the valve plate, one layer of the surface of the sealing layer is bonded to the surface of the valve plate, the thickness of the surface of the valve plate is increased, and the phenomenon of leakage is not prone to occurring in the gate valve plugging process of the valve plate next time are solved. When the phenomenon of continuous leakage still occurs next time, the sealing layer continues to be bonded to the surface of the valve plate to plug the valve plate, so that the gate valve has the automatic leakage stopping and repairing functions after leakage, the working efficiency of the gate valve is improved, and the phenomenon that the gate valve needs to be disassembled and maintained multiple times is avoided.

The invention relates to a PPR plastic pipe with a self-repairing function and a preparation method thereof and belongs to the field of PPR pipe preparation. According to the preparation method of thePPR plastic pipe with the self-repairing function, the preparation method of the PPR plastic pipe includes the following steps that a, polyacrylic acid and poly allylamine hydrochloride are mixed uniformly into a mixed solution, the interlayer inner wall of an inner pipe body and an outer pipe body of the PPR plastic pipe are uniformly coated with the mixed solution, film forming is performed through thermal crosslinking, and the coated PPR pipe is obtained; and b, self-repairing micro capsules and light-blocking filler are mixed, an interlayer of the inner pipe body and the outer pipe body of the coated PPR pipe is filled with the mixed self-repairing micro capsules and light-blocking filler, and the PPR plastic pipe with the self-repairing function is prepared. After cracking happens tothe prepared the PPR plastic pipe, cracks can be fast repaired, pipe blasting is prevented, and the service life of the pipe is prolonged.

A leak-proof nano lubricating oil is made from the following main substances according to parts by weight: 45-65 parts of paraffin base oil, 10-25 parts of an ester synthetic lubricating oil, 5-20 parts of a synthetic lubricating grease, 3-10 parts of a leak-proof additive, 2-6 parts of gear oil composite additive, 1-3 parts of extreme pressure anti-wear additive, 15-25 parts of an engine protectant, 0.5-3 parts of T201 or T205, 0.5-3 parts of T321, 0.01-0.05 part of T746, 0.3-2 parts of T803 or T801, 5-20 parts of T901, 0.02-0.07 part of T1001, and 1-3 parts of T304.The leak-proof nano lubricating oil has significant leak-proof effect, fuel waste can be greatly reduced, environment pollution can be greatly reduced, no oil supplementing is required, service performance is improved, the service cycle can be greatly prolonged, lubricating performance can be greatly improved, oxidation resistance and corrosion resistance are good, and the leak-proof nano lubricating oil has repairing and protecting functions in the case that a gear experiences corrosive pitting, hard spots and the like.

The invention discloses a moisturizing and repairing facial mask and a preparation method thereof. The moisturizing and repairing facial mask comprises the following raw materials: 80-100 parts of composite plant fermentation filtrate, 0.5-5 parts of chondrus crispus extract, 0.05-0.5 part of carboxymethyl chitosan, 0.1-1 part of a preservative, 0.05-5 parts of sea buckthorn fruit extract and 0.1-4 parts of a buffering agent. The composite plant fermentation filtrate is prepared by fermenting the following raw materials in parts by weight: 1-10 parts of corn, 1-10 parts of rice, 0.5-5 parts ofwhite fungus, 0.1-2 parts of pH regulator, 0.1-2 parts of yeast and 80-100 parts of water. The adopted raw materials have no side effect, the facial mask achieves an edible security level, and the moisturizing and repairing facial mask provided by the invention has a high-efficiency moisturizing function in addition to the repairing function. The preparation method of the facial mask provided bythe invention is simple and safe.

The invention provides a soil conditioner for preventing and controlling continuous cropping seedling death of a crop. The soil conditioner is obtained by mixing the following raw materials in percentage by weight: 1.0-2.5% of a composite microbial inoculum, 25-45% of organic matter and 55-75% of a medium and trace element containing soil conditioning agent. The soil conditioner can increase the organic matter content of soil, promote formation of a soil aggregate structure, improve physical and chemical properties of the soil, reduce accumulation of toxic substances in the soil, condition microbial flora in the soil, increase the number of beneficial bacterial flora and enhance the competitiveness of beneficial microbes; meanwhile, the soil conditioner is rich in a variety of micronutrient elements needed during crop growth, and after being applied to the soil, the soil conditioner can meet the crop growth needs, and can significantly enhance the crop resistance, enhance the crop resistance to pests and diseases, effectively control a continuous cropping seedling death phenomenon of the crop and improve the crop quality and the crop yield.