37results about How to "Reduce peeling" patented technology

The invention discloses a biomedical magnesium alloy and a preparation method thereof, and belongs to the technical field of magnesium alloy materials. The biomedical magnesium alloy comprises a magnesium alloy matrix, a micro-arc oxidation film layer is arranged on the surface of the magnesium alloy matrix, and a PLGA-HA composite coating is arranged on the surface of the micro-arc oxidation film layer. The micro-arc oxidation film serves as a magnesium alloy surface modification base layer, provides a good adhesion interface for the composite coating and enhances the corrosion resistance of a base body. By introducing the PLGA-HA composite coating on the micro-arc oxidation film on the surface of the magnesium alloy, the PLGA coats and stabilizes HA particles, so that the HA particles are distributed more uniformly, meanwhile, the bonding strength of the HA and the micro-arc oxidation film is improved, the stripping phenomenon of the coating is reduced, and the long-term stability of the coating is ensured. In addition, the composite coating further fills up pores and cracks of the micro-arc oxidation film, and the overall compactness and corrosion resistance are remarkably improved, so that the degradation rate of the magnesium alloy is effectively delayed.

The invention relates to a polyamide composite membrane containing a middle layer and a preparation method of the polyamide composite membrane. The polyamide composite membrane comprises a polyborosiloxane-based porous polymer substrate, a modified polyimide middle layer and a polyamide separation layer, a modified polyimide intermediate layer is loaded on the surface of the porous polymer substrate, and a polyamide separation layer is loaded on the surface of the modified polyimide intermediate layer. The polyborosiloxane-based porous polymer substrate and the modified polyimide intermediate layer have better compatibility, interface defects can be reduced, the overall performance of the membrane can be improved, moreover, the polyborosiloxane-based porous polymer substrate also has a self-healing characteristic, and after the polyborosiloxane-based porous polymer substrate is damaged, the self-healing property of the polyborosiloxane-based porous polymer substrate is improved. Fractured connection can be repaired without external stimulation (such as light and heat), and self-repairing of the substrate is achieved.

The invention provides a display panel, a preparation method thereof and a display device. The display panel comprises a substrate, an isolation structure, a first packaging layer and an etching barrier layer, wherein the isolation structure is arranged on one side of the substrate, a plurality of isolation openings are defined by the isolation structure, and the isolation openings are used for containing at least part of the light-emitting units; the first packaging layer is arranged on the side, away from the substrate, of the light-emitting unit; the etching barrier layer is arranged on the side, away from the substrate, of the first packaging layer. In the display panel, the first packaging layer and the light-emitting unit below are protected through the etching barrier layer, the thickness of the first packaging layer can be reduced, the production process can be accelerated, the productivity can be released, meanwhile, the photoresist thickness in the preparation process can be reduced, the photoresist stripping condition is reduced, the production efficiency and the product yield are improved, and the production cost is reduced. And the processing property of the display panel is improved.

The utility model relates to the technical field of roadbeds, and provides a waterproof roadbed which comprises a foundation, an isolation belt is arranged at the top of the foundation and made of waterproof concrete, a roadbed body is arranged in the isolation belt, a gravel layer is arranged on the bottom side of the inner wall of the roadbed body, a base layer is arranged at the top of the gravel layer, and a waterproof layer is arranged on the base layer. The base layer is made of cement concrete, a plurality of reinforcing ribs are arranged in the base layer, the reinforcing ribs are made of steel bars, a first bonding layer is arranged at the top of the base layer, the first bonding layer is made of asphalt cement, and a waterproof layer is arranged at the top of the first bonding layer. By arranging the isolation belt made of the waterproof concrete material and the waterproof layer made of the polymer geomembrane material, water and pollutants in the foundation can be effectively prevented from permeating to the pavement, the pavement structure is protected against the influence of foundation erosion, and the service life of the pavement is prolonged.

The utility model relates to the technical field of aluminum foil processing, and discloses an aluminum foil high-stability Gr content passivation buffer device which comprises a fixing plate, conveying rollers, an air cylinder and a cutting straight blade, the conveying rollers are symmetrically and rotatably arranged on the side face of the fixing plate, the air cylinder is fixedly installed on the top of the fixing plate, and the cutting straight blade is arranged on the fixing plate. The tail end of a piston rod of the cylinder is fixedly connected with the straight cutting blade; and a supporting seat is fixedly arranged on the side face of the fixing plate and located between the two conveying rollers, a buffer plate is arranged above the supporting seat, sliding rods in sliding connection with the supporting seat are fixedly arranged on the two sides of the lower surface of the buffer plate, and the rod walls of the two sliding rods are sleeved with first springs. The aluminum foil cutting device is provided with an elastic buffering structure, friction and abrasion between the straight cutting blade and the surface of aluminum foil can be reduced, stripping and loss of a chromium oxide layer are reduced, and stability of chromium content is kept.

The invention discloses a circular seam type converter bottom blowing gas supply element and a manufacturing method thereof, and aims to solve the problems of weak combination between a gas supply element and a refractory material, easy stripping and high bleed-out risk in the prior art. The gas supply element consists of a gas inlet pipe, a gas chamber, an outer-layer steel pipe, a central steel pipe, a refractory material filled in the central steel pipe and a magnesia carbon refractory material base body, and is particularly characterized in that a circular seam structure formed by the outer-layer steel pipe and the central steel pipe ensures accurate positioning of the width of a seam through points or ribs of a stainless steel pile cone. In addition, the circular seam structure and the magnesia-carbon refractory material base body are integrally formed, so that the structural stability and durability of the gas supply element are remarkably improved, and the steel leakage risk is reduced.

The invention discloses the application of pine pollen polysaccharide in preventing and treating atopic eczema, and belongs to the technical field of atopic eczema prevention and treatment. The pine pollen polysaccharide is prepared by the following method: adding broken wall masson pine pollen to petroleum ether, heating and refluxing extraction, collecting filter residue by suction filtration, drying and removing solvent, and obtaining defatted masson pine pollen; heating and refluxing extraction of defatted masson pine pollen with 95% ethanol, collecting filter residue by suction filtration, and drying and removing residual solvent to obtain impurity-removed masson pine pollen; adding water to the impurity-removed masson pine pollen, heating and boiling, repeatedly extracting and combining filtrates, heating and concentrating to obtain a concentrated solution; removing protein from the concentrated solution, precipitating with alcohol, centrifuging and precipitating, and freezing and decompressing to obtain pine pollen polysaccharide. Pine pollen polysaccharide is used to prevent and treat atopic eczema. Pine pollen polysaccharide comes from natural plants. Compared with traditional drugs, pine pollen polysaccharide has higher safety and lower side effects, and is particularly suitable for long-term use and sensitive populations such as infants and young children.

The utility model relates to the technical field of medical instruments, in particular to a fracture minimally invasive internal fixation guiding device which comprises a fixing plate, a positioning plate, a clamping mechanism and a sleeve, a plurality of sets of fixing holes are formed in the fixing plate in a penetrating mode, a plurality of sets of positioning holes are formed in the positioning plate in a penetrating mode, and the positioning holes correspond to the fixing holes. The clamping mechanism comprises a clamping plate, a plurality of sets of clamping bases are arranged on the clamping plate in a sliding mode, and a needle hole is formed in the sleeve in a penetrating mode. The positioning plate is used for guiding, a smaller incision can be realized, so that the postoperative pain and trauma are reduced, the minimally invasive property of the surgery is improved, the concept of'minimally invasive, painless and rapid rehabilitation 'pursued by the modern surgery is met, and the minimally invasive property is stronger.

This invention relates to the field of PCB manufacturing and packaging technology, and discloses a method and system for grouting high-density interconnect PCBs. The method includes the following steps: acquiring the board structure information and grouting area information of the high-density interconnect PCB, and determining grouting shrinkage-sensitive areas based on the board structure information and the grouting area information; performing a compression and flow-guiding treatment on the grouting shrinkage-sensitive areas to form a compression and flow-guiding structure; performing differentiated grouting treatment on the grouting area based on the compression and flow-guiding structure to form a grouting layer structure; and performing a segmented temperature-controlled curing treatment on the grouting layer structure to obtain a finished high-density interconnect PCB board. This invention reduces the risks of interface gaps, peeling, and insulation failure in the grouting layer of automotive high-density interconnect PCBs.

The invention discloses application of pine pollen polysaccharide in prevention and treatment of atopic eczema, and belongs to the technical field of atopic eczema prevention and treatment. The pine pollen polysaccharide is prepared by the following method: adding wall-broken masson pine pollen into petroleum ether, performing heating reflux extraction, performing suction filtration to collect filter residues, and drying to remove a solvent to obtain degreased masson pine pollen; heating, refluxing and extracting the degreased pinus massoniana pollen by using 95% ethanol, carrying out suction filtration, collecting filter residues, and drying to remove a residual solvent, so as to obtain impurity-removed pinus massoniana pollen; adding water into the impurity-removed masson pine pollen, heating and boiling, repeatedly extracting, combining filtrate, and heating and concentrating to obtain a concentrated solution; and removing protein from the concentrated solution, and carrying out alcohol precipitation, centrifugal separation and precipitation, freezing and drying under reduced pressure to obtain the pollen pini polysaccharide. The pine pollen polysaccharide is used for preventing and treating the atopic eczema, the pine pollen polysaccharide is derived from natural plants, and compared with traditional medicines, the pine pollen polysaccharide has higher safety and lower side effects and is particularly suitable for sensitive people such as infants and the like after being used for a long time.

The invention relates to the technical field of LED light emitting, in particular to an LED light emitting device, which comprises a substrate, a plurality of blue light chips are uniformly arranged at the bottom of the groove; the plurality of purple light chips are arranged at the bottom of the groove and surround the plurality of blue light chips; the second fluorescent layer covers the surfaces of the plurality of purple light chips; the first fluorescent layer covers the surfaces of the second fluorescent layer and the plurality of blue light chips; and the first fluorescent layer and the second fluorescent layer are connected with the side wall of the groove through a connecting adhesive layer. According to the invention, the connecting glue layer is designed between the side wall of the groove and the fluorescent layer, so that the side wall of the groove and the fluorescent layer can be effectively bonded, and the peeling of the fluorescent layer caused by the influence of environmental factors such as cold and hot impact or moisture can be effectively reduced; the power density of the light-emitting device and the corresponding intensity of the light-emitting device are effectively guaranteed, eyesight can be protected, and the overall size is smaller.

The present invention relates to a radial tire belt layer separation structure, which includes a cord layer, a belt layer and a tread portion from the inside to the outside, and the belt layer is a multi-layer structure; the characteristic is that: a reinforcing belt layer is also sandwiched in the belt layer, and the reinforcing belt layer is composed of three separated narrow belt strips and two narrow rubber strips spliced ​​between the three narrow belt strips; the three narrow belt strips are respectively two side narrow belt strips and a middle narrow belt strip. The present invention ingeniously uses three separated narrow belt strips and two narrow rubber strips to splice to form a reinforcing narrow belt layer structure, especially the middle narrow belt is embedded with a high-elongation steel cord, which can effectively disperse the force in the middle of the crown, reduce the occurrence of peeling in the middle of the crown, and improve the service life of the tire.

The invention discloses a high-entropy alloy nitride coating, a preparation method of the high-entropy alloy nitride coating and a wear-resistant part, the coating is an AlTiVCrMoSiN high-entropy alloy nitride coating, and in corresponding preparation raw materials, the element content of Al ranges from 10% to 30%, the element content of Ti ranges from 10% to 30%, the element content of V ranges from 10% to 30%, and the element content of Cr ranges from 10% to 30%. The element content of Mo ranges from 5% to 25%, and the element content of Si ranges from 1% to 10%. The coating has a compact and uniform feature-free structure, and has excellent mechanical properties, high elastic modulus, wear resistance and good surface quality. The preparation method of the AlTiVCrMoSiN high-entropy alloy nitride coating comprises the step of preparing the AlTiVCrMoSiN high-entropy alloy nitride coating on the surface of a matrix by adopting a cathode arc ion plating deposition method. The preparation method is simple, high in deposition rate and suitable for industrial production.

The composite base cloth comprises a surface layer and an inner layer from outside to inside, the surface layer comprises a first area, a second area, a third area and a fourth area, and the second area comprises a transverse concave area and transverse convex areas located on the two sides of the transverse concave area. The third area comprises a longitudinal concave area and longitudinal convex areas located on the two sides of the longitudinal concave area, the height of the first area is the same as the height of the transverse convex areas and the longitudinal convex areas, the height of the fourth area is the same as the height of the transverse concave areas and the longitudinal concave areas, and the fourth area comprises a first unit and a plurality of holes. The first area, the second area, the third area and the fourth area in the surface layer form a concave-convex structure, so that an uneven structure is formed on the surface of the base cloth, the leather coating can fill the concave part of the base cloth and wrap the convex part when the leather coating is cured on the concave-convex surface, the adhesive force between the leather coating and the base cloth is enhanced, and the service life of the leather coating is prolonged. And the leather coating permeates into the inner layer through the eyelets so as to be bonded with the two layers of the base cloth.

Provided is a bonded substrate which is capable of reducing the occurrence of internal peeling and defects and which has excellent thermal conductivity. The bonded substrate (1) has a metal plate (3), a first ceramic (4), and a first metal body (5). The first metal body (5) is disposed between a first surface of the metal plate (3) and a first surface of the first ceramic (4), and at least 80% of a side surface (4C) connected to the first surface (4A) of the first ceramic (4).

According to the annular conveying belt deviation rectifying device for the production workshop and the rubber coating press-fit forming machine, the deviation condition of a base band is detected through an infrared sensor to control a groove drum to rotate, an S-shaped sliding groove in the outer surface of the groove drum rotates along with the base band, and a sliding ball slides in the groove under the action of the S-shaped sliding groove; and the deviation rectifying block below the sliding ball performs deviation rectifying on the base band in the first direction. The corrected base belt can ensure the subsequent uniform coating of a rubber layer, the bonding strength of the rubber layer and the base belt is enhanced, the wear resistance of the conveying belt is improved, and the service life of the conveying belt is prolonged. Besides, as the cleaning roller is in transmission connection with the rotating roller through the rotating rod, the cleaning roller rotates along with the rotating roller to clean the upper surface of the base band, dust, oil dirt and other impurities can be removed easily, it is guaranteed that a subsequent adhesive layer can be evenly and firmly attached to the base band, the adhesive force of the adhesive layer is enhanced, and the delaminating and stripping phenomena are reduced; and meanwhile, part of impurities on the lower surface of the base band can fall off through vibration generated when the base band is cleaned through the cleaning roller.

The present application relates to the field of medical devices, and in particular to a hip joint surgical guide, the hip joint surgical guide comprising a guide body, the guide body comprising a lunate matching plate, a horseshoe fossa matching plate and a rotating support portion, the lunate matching plate, the horseshoe fossa matching plate and the rotating support portion are respectively connected to a connecting portion; it also comprises a rotating portion that can rotate relative to the rotating support portion, the rotating portion is provided with a first positioning through hole, the rotating support portion is provided with a second positioning through hole, the lunate matching plate is provided with a third positioning through hole, and it also comprises a positioning member that can pass through the first positioning through hole, the second positioning through hole and the third positioning through hole in sequence; the rotating portion is also provided with a guide member arranged parallel to the positioning member. The present application is used to locate and guide the direction of acetabular grinding and implantation of acetabular cup prosthesis in total hip replacement.

The utility model provides a roller with an inertia damping vibration absorption device. The roller comprises a high-density tungsten damper, a sealing plug, a carbon fiber rope, a high-strength pipe, an inertia damping vibration absorption mechanism and a roller body. When the roller vibrates in the working process, the inertia damping vibration absorption mechanism installed in the through hole of the roller vibrates, vibration is transmitted to the carbon fiber rope through the two sealing plugs, and the high-density tungsten damper is driven by the carbon fiber rope to vibrate in a limited amplitude in the high-strength pipe. The device is compact in structure and uniform and stable in transmission movement, the vibration reduction effect changes along with change of roller vibration, vibration of the rolling mill can be effectively reduced, roller surface stripping, roller breakage and rolled piece vibration marks are reduced, and the quality of products produced by the rolling mill is improved; and meanwhile, the device is convenient to act, and an ideal vibration reduction effect can be achieved without external intervention.

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate and a first metal layer located on one side of the substrate, and the first metal layer comprises a first metal part and a second metal part which are connected with each other; the first metal part comprises a plurality of first exhaust holes, the second metal part comprises a plurality of second exhaust holes, and the arrangement mode of the plurality of first exhaust holes is different from the arrangement mode of the plurality of second exhaust holes. According to the invention, the voltage drop of transmission signals of the first metal layer can be reduced, the display uniformity is improved, the risk of film stripping of large-area metal can be reduced, and the product performance reliability is improved.

The invention discloses a high-durability gradient reinforced composite material for an aircraft tire and a tire bead structure of the aircraft tire. The Shore A hardness of the high-durability gradient reinforced composite material is 50-75 degrees, the 100%-300% stress at definite elongation is larger than or equal to 5 MPa, the tensile strength is larger than or equal to 20 MPa, and the elongation at break is larger than or equal to 450%. In the thickness direction, the high-durability gradient reinforced composite material has a hardness gradient and / or a modulus gradient. Tire bead reinforcing rubber is arranged between tire bead rubber and the rim edge of the tire bead structure of the aircraft tire, the tire bead reinforcing rubber adopts the high-durability gradient reinforced composite material, the hardness of the tire bead reinforcing rubber is gradually increased and / or the modulus is gradually increased in the direction from the tire bead rubber to the rim edge, the concentration phenomenon of dynamic strain is effectively reduced, the heat generation amount is reduced, and the service life of the tire bead structure is prolonged. Material aging and performance degradation caused by high temperature are avoided, the durability and fatigue resistance of the tire bead structure are remarkably improved, and the use requirements of aircraft tires under high-load and high-frequency strain working conditions are met.

The application discloses a kind of high-temperature-resistant, acid and alkali-resistant acrylic pressure-sensitive adhesive and preparation method thereof, belong to pressure-sensitive adhesive technical field.The pressure-sensitive adhesive is made of 50-80 parts by weight of acrylic ester copolymer, 5-15 parts of 10-30nm SiO2 Nanoparticle, 1-5 parts of composite dispersant, 10-30 parts of ethyl acetate, 0.5-1.5 parts of crosslinking agent and 1-4 parts of silane coupling agent KH550.The preparation is first carried out by ultrasonic dispersion with coupling agent pretreatment, then composite dispersing liquid is prepared by adding composite dispersant, then it is fused with acrylic ester copolymer, and finally the finished product is obtained by adding crosslinking agent reaction.The application solves the problem of nanoparticle agglomeration by composite dispersion system, strengthens the interface combination by using coupling agent, balances the cohesive force and adhesive force by crosslinking agent, the product is resistant to high temperature up to 180 DEG C, after acid and alkali immersion, there is little residual glue, and it retains the excellent temperature bonding performance, suitable for many high-end scenarios.

The utility model provides a surface acoustic wave filter, which is characterized in that a through electrode comprises a first through electrode positioned in a wall body and a second through electrode positioned in a cover body, the second through electrode is connected with the first through electrode, the first through electrode is connected with a substrate electrode, and the second through electrode is connected with the substrate electrode. And the bottom surface of the second through electrode protrudes out of the top surface of the first through electrode, so that a locking structure is formed between the second through electrode and the first through electrode, the connection reliability of the through electrodes, the wall body and the cover body is improved, the occurrence of stripping is reduced / avoided, and the service life of the through electrodes is prolonged. And the yield and the reliability of the formed surface acoustic wave filter are improved. Furthermore, the bottom surface of the second through electrode protrudes out of the top surface of the first through electrode, so that the stress of the through electrodes is also dispersed, and the yield and reliability of the surface acoustic wave filter can be further improved.

The present invention discloses a percutaneous reduction, distraction and pressurization fixation device for clavicle fracture, comprising a reduction and fixation plate arranged on the body surface and adapted to the physiological curvature of the clavicle, an arc-shaped slide groove being provided in the reduction and fixation plate, a plurality of screw assemblies being connected in the arc-shaped slide groove, the screw assembly comprising a screw body and a locking nut, the screw body comprising an upper screw rod portion, a lower screw rod portion and a step portion located between the upper screw rod portion and the lower screw rod portion, the locking nut being adapted to be screwed on the upper screw rod portion and cooperating with the step portion to lock the screw body on the reduction and fixation plate, and a distraction and pressurization fine-tuning mechanism located outside the body and adjustable in length being connected between two adjacent screw assemblies near the fracture end. When the present invention is used, it only needs to make a few small incisions at both ends of the clavicle fracture and insert a few screw assemblies locked into the clavicle, so that minimally invasive surgery can be well achieved, and percutaneous external fixation on the body surface can reduce the stripping of the periosteum, protect blood supply, and reduce the occurrence of fracture nonunion.

Provided is a separator for a lithium secondary battery, the separator including: a porous polymer substrate; and a first binder layer formed on at least one surface of the porous polymer substrate and including a particulate type polyvinylidene fluoride (PVDF)-based binder polymer, wherein the first binder layer i) includes a caprolactone-based dispersant, or ii) has a surface roughness (Sa) of 0.12 µm to 0.22 µm.

The present application relates to the technical field of orthopedic fixation devices, and specifically discloses an internal fixation device for lumbar facet joint minimally invasive fixation and fusion, which comprises rotationally connected upper anchoring parts, lower anchoring parts and connecting parts. The upper anchoring parts and the lower anchoring parts are respectively attached to the upper and lower articular process bone surfaces of adjacent vertebral bodies, and are respectively provided with lamina notches and inner wall anti-displacement structures to improve the initial implant stability. The connecting parts are all equipped with compression locking structures to achieve stable fixation of the articular process joints. At the same time, the device is provided with reinforced fixation buckles matched with the clamping grooves to further improve the fixation effect. The present application adopts a minimally invasive low-profile design, causes little damage to soft tissues, concentrates the fixation path, effectively reduces bone stress shielding, and can also rely on the matching structure to improve the bone integration and bone fusion efficiency, accurately solves the articular process joint source pain, is convenient to operate during the operation, and is suitable for use in lumbar facet joint minimally invasive fusion surgery.

The invention relates to the technical field of engines, in particular to a methanol injector valve ball, a preparation method thereof, a methanol injector and an engine. The invention provides a methanol ejector valve ball. The methanol ejector valve ball comprises a valve ball body; the first coating is arranged on at least part of the outer surface of the valve ball body, and the material of the first coating comprises Cr; the second coating is arranged on at least part of the outer surface of the first coating, and the material of the second coating comprises CrN; the third coating is arranged on at least part of the outer surface of the second coating, and the material of the third coating comprises DLC. The methanol ejector comprises the methanol ejector valve ball. The problem of cavitation of the valve ball of the methanol injector can be effectively relieved, the sealing performance of the valve ball and the valve seat is improved, the leakage phenomenon of the methanol injector is reduced or avoided, and the service life of the methanol injector is prolonged.

The invention provides a positive plate, a preparation method and a battery. The positive plate comprises a positive current collector and a positive active material layer, the positive electrode active material layer comprises a first positive electrode active material layer and a second positive electrode active material layer which are sequentially arranged in the direction away from the surface of the positive electrode current collector, the first positive electrode active material layer comprises lithium nickel manganese oxide, and the second positive electrode active material layer comprises lithium nickel cobalt manganese oxide; the first positive electrode active material layer adopts lithium nickel manganese oxide, has a more stable crystal structure and stronger mechanical property, and can provide more stable adhesive force and a more stable interface as a bottom layer in contact with the positive electrode current collector, so that the overall mechanical property and thermal stability of the positive electrode plate are enhanced; the second positive electrode active material layer adopts low-cobalt nickel cobalt lithium manganate and can be in direct contact with an electrolyte, the capacity advantage of the second positive electrode active material layer is fully played, and meanwhile, the volume change of the second positive electrode active material layer is supported and constrained by a bottom layer stable structure, so that the cycling stability of a high-capacity material is remarkably improved.

The invention discloses a preparation method and application of a carbon-metal particle material, belongs to the field of new material preparation and electrochemical energy storage, and is used for solving the problems of volume expansion and shrinkage of an electrode material in a current lithium battery in a charging and discharging process and improving the cycle performance and the energy storage performance of the lithium battery. The preparation method of the carbon-metal particle material comprises the steps that metal particles are compacted on a substrate and conveyed into a high-temperature furnace, alkane gas is introduced, heating growth is carried out, washing and drying are carried out after growth is completed, and carbon-metal particles I are obtained; the carbon-metal particles I and polydimethylsiloxane are subjected to a reaction, and a carbon-metal particle material is obtained; the carbon-metal particles prepared by the method have good conductivity, stability and flexibility; when the composite material is applied to a battery, pulverization and stripping of an electrode material can be reduced, volume change of the electrode material is reduced, and cycle service life and safety of the battery are facilitated.

The invention discloses a waterborne polyurethane anti-static mortar floor coating and a preparation method thereof, and belongs to the technical field of floor coatings. Mixing deionized water, a dispersing agent, water-based castor oil modified polyol resin and a defoaming agent to obtain a component A; mixing a curing agent and a diluent to obtain a component B; mixing cement, quartz sand, calcium hydroxide, a water reducing agent and a dry powder defoaming agent to obtain a component C; mixing the plasticizer, the conductive filler, the anti-static additive and the color paste to obtain a component D; sequentially mixing the component A, the component D, the component B and the component C to obtain the waterborne polyurethane anti-static mortar floor coating. The antistatic additive is prepared by the following steps: dispersing polydopamine coated halloysite powder in deionized water, adding sodium alginate and tin-doped zinc oxide coated titanium dioxide conductive particles, uniformly stirring, adding a cross-linking agent, carrying out a cross-linking reaction, and carrying out vacuum freeze drying. The antistatic property of the waterborne polyurethane mortar floor coating is improved by adding the antistatic auxiliary agent and the conductive filler in a synergistic manner.