46results about How to "Wear-resistant" patented technology

The invention discloses a wear-resistant polyurethane material and a wear-resistant polyurethane rubber roller, and relates to the technical field of high polymer materials. When the wear-resistant polyurethane material is prepared, firstly, 4, 4 '-(10, 20-di-4-pyridyl-21H, 23H-porphin-5, 15-diyl) dibenzoic acid is reduced through a reducing agent, then is oxidized through an oxidizing agent, and finally reacts with hydroxylamine hydrochloride and triethylamine to obtain functionalized porphyrin; secondly, enabling the aramid short fibers subjected to acid etching to react with 3-chloropropyltriethoxysilane to obtain modified aramid short fibers; finally, 4, 4-diphenylmethane diisocyanate and polytetrahydrofuran ether glycol are subjected to a reaction, functionalized porphyrin and 1, 4-butanediol serve as chain extenders, then the modified aramid short fibers are added, and the wear-resistant polyurethane material is obtained through vulcanization. The wear-resistant polyurethane material prepared by the invention can be used for manufacturing a polyurethane rubber roller, and has high strength, good antibacterial property and self-repairing property.

A highway roadbed composite material and a roadbed manufacturing method, belonging to the technical field of highway construction, the present invention provides a highway roadbed composite material comprising: a base layer, composed of oil shale waste residue, slag, crushed stone and fly ash; a cold-resistant layer compounded on the base layer, composed of impact-resistant polystyrene, water reducer and quicklime; a wear-resistant layer compounded on the cold-resistant layer, composed of waste rubber, carbon black and additives. The roadbed manufactured by the present invention has the characteristics of cold resistance and wear resistance, excellent low-temperature impact resistance, low manufacturing cost, and energy-saving and environmental protection, meeting the requirements of highway roadbed design specifications and the strength and deformation requirements of highway roadbeds. In addition, the roadbed manufactured by the present invention has a long service life, is safe and reliable to use, has a wide range of applications, and has a simple manufacturing process without the need for large-scale equipment.

The utility model discloses a novel centrifugal dust removal unit which comprises a gas-solid separation shell, a gas-solid separation chamber is arranged in the gas-solid separation shell, a lower shell is installed at the lower end of the gas-solid separation shell, a gas inlet and a dust discharge port are formed in the lower shell, a gas purification shell is arranged on one side of the gas-solid separation shell, and a gas outlet is formed in the other side of the gas purification shell. A gas purification chamber is arranged in the gas purification shell, a gas outlet is formed in the gas purification chamber, a tail supporting bearing and a head supporting bearing are installed on the side wall of the gas-solid separation chamber and the side wall of the gas purification chamber respectively, transmission negative pressure cylinders are arranged on the tail supporting bearing and the head supporting bearing, a motor base plate is installed on the gas-solid separation shell, and a motor is installed on the motor base plate. The utility model relates to the technical field of material recovery and gas-solid separation, the rotary filter disc rotates at a high speed to generate centrifugal force, and under the action of the centrifugal force, an attachment material layer gradually slides to the outer edge of the filter disc and finally is separated from the filter disc to complete the ash cleaning process.

The utility model belongs to the technical field of dust and sand prevention of pipe orifice, provide a protection structure of suction nozzle, include: first cover body, connect in the direct above of suction nozzle to cover the suction nozzle with full package type, and second cover body is connected in the direct above of first cover body to cover the first pressure relief hole that is set up on first cover body, wherein, first cover body inside passes first pressure relief hole, second pressure relief hole and outside atmosphere communication in proper order, second pressure relief hole hidden type is established in second cover body and its axis is towards ground to guide medium release while preventing dust and sand backflow into second cover body. The second cover body that is hidden type with second pressure relief hole covers first cover body, so that suction nozzle can realize normal pressure relief through first pressure relief hole, second pressure relief hole, exclude the security risk, utilize the second pressure relief hole of axis towards ground simultaneously can prevent dust and sand backflow into second cover body, improve the dust and sand prevention ability of suction nozzle.

The application discloses isosorbide bio-based polyurethane acrylate, which is prepared from bio-based isosorbide, bio-based 1,2-pentanediol, bio-based 1,5-pentanediol and bio-based succinic acid as raw materials through esterification reaction, vacuum polycondensation reaction, bio-based hydroxyl-terminated polyester, reaction of bio-based hydroxyl-terminated polyester and bio-based 1,5-pentamethylene diisocyanate, bio-based polyurethane, reaction of bio-based polyurethane and hydroxyethyl acrylate, and UV-curable isosorbide bio-based polyurethane acrylate. The application discloses application of the isosorbide bio-based polyurethane acrylate in preparation of UV coating, ink and adhesive. The isosorbide bio-based polyurethane acrylate is compounded with a UV monomer into a UV resin, the UV resin is compounded into a UV coating, and after curing, the UV coating has excellent properties such as high hardness, wear resistance, scratch resistance, heat resistance and weather resistance, and can be used as raw material of the UV coating, ink and adhesive.

A circuit board according to an embodiment includes: a first metal layer; and a second metal layer disposed on the first metal layer, in which the first metal layer includes an oxide layer formed by oxidizing a region of a predetermined depth from a lower surface of the first metal layer, the first metal layer and the second metal layer include a plurality of electrode patterns disposed on the oxide layer and spaced apart from each other, the oxide layer insulates the plurality of electrode patterns from each other.

This invention belongs to the field of textile technology and relates to a polyester warp-knitted fabric with a nylon-like feel, its preparation method, and its application. The polyester warp-knitted fabric with a nylon-like feel is obtained through a knitting process and a dyeing and finishing process. The knitting process uses polyester combined with spandex and a warp-knitting padding design to optimize the yarn interlacing state, making the fabric soft and delicate to the touch. The dyeing and finishing process includes refining, first drying, pre-setting, alkali reduction, dyeing, second drying, and final setting. By controlling the reduction rate in the alkali reduction step, the polyester fabric can be given a soft and smooth feel and delicate luster similar to nylon. At the same time, it can overcome the functional limitations of real nylon, integrating cooling sensation, moisture absorption and quick drying, softness and skin-friendliness, good drape, wear resistance, breathability and non-suffocation, and wrinkle resistance and easy care into one.

The utility model relates to a boiler SNCR spray gun convenient to replace, including gun body, the front end of gun body is connected with the gun head, still include connecting piece and fixed clamp, connecting piece includes sleeve pipe, and the flange plate and circular plate connected in the both ends of sleeve pipe, the flange plate is connected with boiler wall flange, the gun body is equipped with the fixed plate matched with circular plate, the shape of fixed clamp is matched with circular plate and fixed plate, fixed clamp includes a pair of semicircle clamp of hinge connection, and is used for the lock catch device of fixed clamp opening and closing, semicircle clamp includes the face hoop board of circular arc, the side hoop board with locking hook connected in the both sides of face hoop board, locking hook is equipped with the first guide surface of arc towards the inside of side hoop board, have realized only need fixed clamp to tighten and connect circular plate and fixed plate, simultaneously, the first guide surface of locking hook extrudes circular plate, cooperates with the side hoop board of other side, extrudes fixed plate and sticks together to circular plate, need not additional force and press tightly two, satisfy the convenience demand of quick dismounting spray gun.

A kind of UHPFRC combined steel bridge deck panel using burl cold connection key, comprising the following construction steps: S1, prefabricated cold connection key;S2, using high-pressure air gun to carry out dust removal, cleaning to steel bridge deck top plate;S3, set cold connection key on steel bridge deck top plate, the longitudinal distance between adjacent cold connection key is 30-50cm, the transverse distance is 30-50cm;S4, pours the layer of ultra-high performance cement-based composite material on steel bridge deck top plate and cold connection key;The combined steel bridge deck panel of the application is simple in structure, and the force is clear, burl cold connection key is used in steel-mix combined structure, increases the contact area of connection key and concrete, can significantly reduce the stress concentration between connection key and concrete, while connection key has 360 degrees universal shear resistance, and shear resistance adaptability is good, and has good tensile performance, reliable connection and other advantages, is used with copolymerized formaldehyde fiber or hybrid fiber UHPFRC, can significantly improve the combined stiffness of combined structure, improves the fatigue performance of steel bridge deck panel.

The utility model discloses an automobile tire fastening belt which comprises a macromolecule outer colloid belt and a steel wire rope inner net curtain, and the macromolecule outer colloid belt is wrapped outside the steel wire rope inner net curtain through mould pressing or injection molding. Due to the adoption of the steel-plastic composite structure, compared with an original woven polyester belt, the steel-plastic composite belt has the advantages of being high in strength, low in ductility, high in friction force with a tire joint surface and capable of preventing looseness under the condition of the same function. And moreover, the wear-resistant, scratch-resistant and anti-shearing characteristics are realized, and the service life can be greatly prolonged.

The invention discloses isocyanate group modified fluorocarbon resin with antifouling performance, an antifouling coating thereof, a preparation method and application of the antifouling coating, and the isocyanate group modified fluorocarbon resin is prepared by the following steps: under the protection of inert gas, mixing mercaptan with an acrylic monomer and a photoinitiator, carrying out sulfydryl-vinyl click reaction at normal temperature, and then adding an initiator, so as to obtain the isocyanate group modified fluorocarbon resin. The preparation method comprises the following steps: adding an acrylic monomer into anhydrous fluorocarbon resin to obtain a modified acrylic monomer, dropwise adding diisocyanate into the anhydrous fluorocarbon resin, dropwise adding the modified acrylic monomer, and adding a solvent and a catalyst to react to obtain the isocyanate-based modified fluorocarbon resin polymer. The isocyanate group modified fluorocarbon resin disclosed by the invention has the characteristics of low surface energy, strong adhesion capability (bacteria, seaweed and the like) for inhibiting marine fouling organisms, small friction coefficient, good mechanical flexibility, low ice accumulation adhesion and high cycle stability, and is particularly suitable for ship surface protection.

This utility model relates to the field of display screen technology and discloses a touch LED digital screen for an ice maker; it includes a transparent plate and a display screen, the display screen being disposed on one side of the transparent plate; a structural support layer is fixed to the inner wall of the transparent plate, and a buffer energy-absorbing layer is disposed on one side of the structural support layer. This utility model provides a stable frame by setting a structural support layer to prevent screen deformation, the buffer energy-absorbing layer absorbs external impact through elastic material to isolate equipment vibration, the foam adhesive layer ensures firm bonding of various components and also assists in buffering stress, the tempered glass layer resists external impact with high strength and high light transmittance to ensure clear display, and the hardened coating further enhances the surface hardness of the glass and has wear resistance and anti-fingerprint functions. The synergistic effect of each layer ensures stable operation of the screen in complex usage environments, extends its service life, and improves the user experience.

The present invention discloses a casting system for a carbon fiber reinforced half-bend pipe, belonging to the field of conveying bend pipes. The present invention includes a sand mold, which includes a plurality of half-bend pipe cavities that are parallel to each other and placed horizontally, and the openings of the half-bend pipe cavities are all downward; a half-bend pipe cavity is obtained after a cavity upper mold and a cavity lower mold are molded together, and the half-bend pipe cavity is used to cast the carbon fiber reinforced half-bend pipe; the carbon fiber reinforced half-bend pipe includes a half-bend pipe body, the half-bend pipe body is half of a bend pipe cut along the axial direction, and the half-bend pipe body is the half of the bend pipe on the side close to the bending direction, and the bending direction is the direction of the bend pipe from the inside to the outside; the half-bend pipe body is designed to thicken from the two ends A to the middle B and the two sides C to the middle D; a reinforcing protrusion is provided in the middle of the inner side of the half-bend pipe body, and a carbon fiber mesh layer is sandwiched in the reinforcing protrusion. The purpose of the present invention is to effectively compound carbon fiber materials onto existing metal bend pipes to increase the service life of the bend pipes.

This invention provides a composite bimetallic drill pipe and its preparation method. A first aspect of this invention provides a method for preparing a composite bimetallic drill pipe, the method comprising the following steps: preparing a bimetallic drill pipe joint; preparing a bimetallic drill pipe body; friction welding the end of a first region of the drill pipe joint to the end of a second region of the drill pipe body; after welding, applying a third corrosion-resistant alloy layer to the inner wall of the weld area between the drill pipe joint and the drill pipe body, and fusing the third corrosion-resistant alloy layer with the first and second corrosion-resistant alloy layers. According to the preparation method provided by this invention, a complete corrosion-resistant alloy layer is formed on the entire inner wall of the drill pipe, effectively ensuring the corrosion resistance of the inside of the pipe body and improving the overall performance and service life of the drill pipe.

The waterproof and high-temperature-resistant reusable packaging color box comprises a base material plate layer, an anti-fouling layer and a fixed plate, the anti-fouling layer is arranged on the innermost layer of the base material plate layer, inner corner fixing columns are installed at the four corners of the inner wall of the anti-fouling layer, movable plates are arranged on the inner sides of a plurality of vertical plates, the high-temperature-resistant layer is arranged on the inner layer of the base material plate layer, and the high-temperature-resistant layer is arranged on the outer layer of the base material plate layer. The honeycomb sandwich layer is arranged on the inner layer of the high-temperature-resistant layer, the waterproof groove is arranged on the inner layer of the honeycomb sandwich layer, the reinforcing layer is arranged on the inner layer of the waterproof groove, the antifouling layer is arranged on the inner layer of the reinforcing layer, and a printing pressing layer is arranged on the outermost layer of the base material plate layer. Lattice layer cavities are formed in the left side and the right side of the interior of the packaging color box through the two adjusting plates, the distance of the lattice layer cavities formed by the two adjusting plates in the packaging color box can be adjusted, heat insulation and vibration resistance are achieved through the high-temperature-resistant layer and the honeycomb sandwich layer, and water resistance and moisture resistance are achieved through the printing press-fit layer and the waterproof groove.

The utility model discloses a durable side air inlet fuel gas ejector structure which comprises an injection molding shell, a containing cavity is formed in the injection molding shell, an installation column is arranged in the containing cavity, and the installation column and the injection molding shell are fixedly installed. The air inlet shell is fixedly connected to the lower end of the injection molding shell, a valve seat is arranged in the air inlet shell, the valve seat is fixedly connected with the inner wall of the air inlet shell, a sliding stroke is formed between the valve seat and the mounting column, a movable iron core is arranged in the sliding stroke in a sliding mode, a wear-resisting ring is arranged on the circumferential face of the movable iron core, and a wear-resisting piece is arranged at the top of the wear-resisting ring; the electromagnetic force in the ejector is enhanced, the abrasion-resistant high polymer material abrasion-resistant ring is arranged on the circumferential face of the vertical moving stroke of the movable iron core, and the abrasion-resistant piece is arranged at the top of the vertical moving stroke of the movable iron core. The composite material has excellent comprehensive properties such as high temperature resistance, self-lubrication, corrosion resistance, flame retardance, hydrolysis resistance, wear resistance and fatigue resistance, and is relatively high in wear resistance.

The utility model belongs to the technical field of integrated wall bodies, and particularly relates to a heat-preservation, heat-insulation and waterproof integrated wall body structure which comprises a wall body, a waterproof layer is glued on the front face of the wall body, a heat-insulation layer is coated on the front face of the waterproof layer, a heat-preservation plate is in contact with the front face of the heat-insulation layer, and a heat-preservation layer is coated on the outer side of the heat-preservation plate. The heat preservation layer is made of heat preservation putty, the front face of the wall body is fixedly connected with a mounting block, and the interior of the heat preservation plate is slidably connected with a limiting plate. According to the utility model, by arranging the mounting block, the limiting plate, the limiting rod and the like, the limiting rod can be matched with the mounting block to limit the insulation board, and by arranging the sliding block, the clamping block and the like, the limiting plate can be limited, so that the insulation board is kept stable while being convenient to mount, and the problem that the insulation board is not easy to deform when being used in an integrated wall body is solved. And the heat insulation plate is inconvenient to disassemble and replace.

The utility model belongs to the technical field of network security, and particularly relates to a network security isolation device which comprises a box body, the outer wall of the box body is sleeved with a box door, the outer wall of the box door is fixedly connected with a handle, the outer wall of the box body is provided with a ventilation net, and the outer wall of the box body is provided with a sliding device. And a rotary cleaning device is arranged on the outer wall of the box body and comprises a mounting seat. According to the network security isolation device, a rotating cleaning device is arranged, a driving motor is started, the driving motor works to drive a rotating rod fixedly connected with an output shaft to move, two sets of threaded sections are arranged on the rotating rod, two sets of sliding blocks oppositely move on the two sets of threaded sections, and the movement of the two sets of sliding blocks drives a hinged plate to swing; the cleaning plates on the hinged plates are controlled by the two sets of hinged plates to conduct swing cleaning, the ventilation net can be cleaned regularly, and the good performance and appearance of the ventilation net are guaranteed.

The utility model relates to the technical field of refrigerant recycling devices, in particular to an air conditioner and refrigerator refrigerant recycling device which comprises a refrigerant recycling machine body, a communicating pipe and a heat dissipation opening are arranged on the refrigerant recycling machine body, and the outer surface of the refrigerant recycling machine body is covered with a composite protective layer. The composite protective layer comprises a chemical nickel-plated phosphorus alloy inner protective layer and a polytetrafluoroethylene outer protective coating, and the chemical nickel-plated phosphorus alloy inner protective layer has excellent corrosion resistance, so that the corrosion of a high-humidity and high-corrosion environment to the equipment body can be resisted; the polytetrafluoroethylene outer protective coating has the characteristics of wear resistance, chemical corrosion resistance and low friction coefficient, so that the protective capability of the surface of the equipment can be further enhanced, the problem of possible leakage of the recycling machine due to external environment corrosion in the prior art is effectively solved, the service life of the equipment is prolonged, and the pollution risk to the environment is reduced; and meanwhile, the health and safety of workers are also guaranteed.

The utility model discloses a protection structure for enhancing the bending strength of the combination position of a sleeve and a main body, which comprises a hard insulator main body, a guide sleeve and a protection structure, one side of the hard insulator main body is provided with an installation hole, one end of the guide sleeve is installed in the installation hole, and the other end of the guide sleeve is installed in the protection structure. According to the utility model, the protection structure is arranged at the combination position of the hard insulator main body and the guide sleeve, so that the anti-bending performance of the combination position of the hard insulator main body and the guide sleeve in the temperature sensing area of the sensor is enhanced; according to the present invention, the packaging material has characteristics of high temperature resistance, high wear resistance, high pollution flashover resistance, excellent electrical insulating property and good mechanical property, and can provide good protection effect in the specific protection area so as to allow the packaged object to adapt to the extreme working condition environment, such that the packaging material does not damage the object in the installation process, the equipment operation process and the transportation process, and has characteristics of temperature resistance, wear resistance, pollution flashover resistance, excellent electrical insulating property and good mechanical property.

This invention discloses a steel pipe anti-deformation structure, comprising: an inner medium-flow steel pipe, the inner surface of which is coated with a ceramic layer; and a middle layer of high-temperature resistant steel pipe fitted onto the outer surface of which is a middle layer of high-temperature resistant steel pipe. The middle layer of high-temperature resistant steel pipe is composed of multiple segments of first high-temperature resistant steel pipes spliced ​​together, with a first expansion joint between adjacent first high-temperature resistant steel pipes. A certain gap is maintained between the inner surface of the middle layer of high-temperature resistant steel pipe and the outer surface of the inner medium-flow steel pipe. This invention's steel pipe anti-deformation structure ensures the straightness of the inner medium-flow steel pipe by adding a composite ceramic layer inside the inner medium-flow steel pipe and adding multiple single-layer or multi-layer high-temperature resistant steel pipes to the outer wall of the steel pipe, thus preventing bending deformation and extending service life.

The utility model discloses a flexible low-voltage flame-retardant cable, which comprises a plurality of wire cores and a sheath used for wrapping the wire cores, and the structure of each wire core is sequentially provided with a conductor, a bulletproof wire and an insulating layer from inside to outside; fillers are arranged in gaps among the wire cores, the sheath is sequentially provided with a flame-retardant tape, an oxygen barrier layer, an armor layer, a water-blocking tape and an outer protective layer from inside to outside, and the conductors are sixth soft copper wires. The cable is reasonable in structural design, and has the following beneficial effects that the sixth soft copper wires are adopted, and a plurality of strands of fine copper wires are stranded in the same direction, so that the flexibility of the cable is greatly improved, the cable has better flexibility and bending resistance, the phenomenon of core breakage does not occur even if the cable is frequently bent for a long time, and the service life of the cable is prolonged. Meanwhile, the outer surfaces of the conductors in the wire cores are provided with the bulletproof wires which are twisted together, so that the toughness of the cable is further enhanced, and the tensile failure resistance is remarkably improved; and the water-blocking tape is arranged to prevent water and moisture from spreading longitudinally, so that a water-blocking effect is achieved.

The application discloses a high-density powder modified carbon fiber winding forming method based on ultrasonic spraying, which comprises the following steps: firstly, high-density powder slurry is premixed and the viscosity is regulated; under the condition of continuous stirring and stable feeding, high-density functional powder is uniformly attached to the surface of carbon fiber tape or carbon fiber tows to form a film and is integrally formed by winding and solidification through ultrasonic spraying; and a composite winding product formed by tightly combining a high-density powder functional layer and a carbon fiber reinforced layer is obtained in the winding process. The application is suitable for the preparation of winding forming products such as carbon fiber winding pipes, annular parts, cylindrical parts, shells, rotating shafts, rotors, pressure vessels and functional composite components. By selecting different types of high-density functional powder, the carbon fiber composite material after winding forming can further have the characteristics of heat conduction, magnetic conduction, electromagnetic shielding, counterweight, wear resistance and other functional properties on the basis of maintaining high strength and lightweight.

The utility model relates to children's playground equipment technical field especially, and more particularly to a children's playground equipment with protection function, including base, the top of base is provided with the climbing frame, and the climbing frame is the arch bridge structure, and the top of base is fixed with the protection pad no.

The invention provides an intelligent sensing control shock wave mass transfer aeration system, and relates to the technical field of sewage treatment. The water pump and the shock wave mass transfer aerator are both installed in sewage of the aeration tank, a liquid suction inlet part in the top of the shock wave mass transfer aerator is located below the water surface, the fan unit comprises a fan, a frequency converter and a wind speed measuring instrument, and the wind speed measuring instrument is used for measuring the wind speed and the wind quantity at an inlet of the fan; the control system collects real-time data of dissolved oxygen, pH and oxidation-reduction potential through a sensor, analyzes and processes the data, and plans a control path according to the relationship between the dissolved oxygen, pH and oxidation-reduction potential and the air volume. The device has the advantages that the oxygen mass transfer efficiency is high, stirring and mixing are uniform, and the aerator is not prone to being blocked and resistant to abrasion; the optimal air inflow can be adjusted and matched at any time through a control system, so that accurate quantitative aeration is realized, and the aeration energy consumption is reduced.

The invention provides a lacquering mold for a horizontal enameled flat wire and a preparation method of the lacquering mold, and relates to the technical field of mold material processing. The material used by the painting mold is an aluminum-based or magnesium-based composite material reinforced by ceramic particles, and the ceramic technology is one or more of SiC, TiC, TiB2, Al2O3 particles or whiskers. The mold is manufactured by adopting a powder injection molding process. The lacquering mold for the horizontal type enameled flat wire has the advantages of being low in thermal expansion coefficient, high in hardness and elasticity modulus and good in abrasion resistance, can stably float at the design position in a paint box, and solves the problem that due to the fact that a traditional mold is large in weight and deviates from the center, the thicknesses of paint films on the upper side and the lower side of the enameled flat wire are not consistent.

The utility model belongs to clothing equipment technical field, concretely is a kind of multi-zip ultraviolet-proof clothes, including: body, body is made of ultraviolet-proof fabric;Front, sleeve, hem and clothes both sides of body are provided with zipper;Front is provided with a main zipper, and the both ends of main zipper extend to collar bottom and body bottom respectively;Sleeve is provided with a ring zipper respectively, and ring zipper is set along the circumferential direction of sleeve;Hem is provided with a transverse zipper, and the both ends of transverse zipper extend to clothes both sides respectively;Clothes both sides are provided with a vertical zipper respectively, and the one end of vertical zipper is connected with the transverse zipper of hem, and the other end extends to underarm position.The utility model is provided with multiple zippers on the front, sleeve, hem and both sides of body, and the degree of opening and closing of clothes can be adjusted flexibly according to actual demand by wearer, so that good ventilation effect is realized.

The invention relates to the technical field of coatings, in particular to water-based two-component low-temperature stoving varnish for a photovoltaic frame and a preparation method of the water-based two-component low-temperature stoving varnish. The water-based two-component low-temperature stoving varnish for the photovoltaic frame comprises a component A and a component B, comprising the following raw materials in parts by weight: 50-60 parts of resin, 10-25 parts of functional filler, 4-10 parts of a solvent, 0.2-0.5 part of a defoaming agent, 0.1-0.3 part of a wetting agent, 0.5-1.5 parts of a dispersing agent, 0.2-0.5 part of a thickening agent and 10-15 parts of water, and the component B is isocyanate. The low-temperature baking varnish prepared by the invention has good adhesive force and excellent corrosion resistance, aging resistance and wear resistance.

The invention relates to the technical field of production and manufacturing of automotive-grade varnish, and specifically to an automotive-grade ultra-long-lasting antibacterial varnish, a preparation method and an application thereof. The coating meets the technical requirements of automotive-grade interior coatings by adopting a compounded hydroxyl resin, nano-powder and a series of additives. Nano-hybrid inorganic antibacterial materials and ammonium salt organic antibacterial agents are added, and the organic and inorganic antibacterial agents can act synergistically in the coating. The varnish coating meets the performance requirements of automotive-grade coatings and has an extremely high antibacterial rate and an extremely low antibacterial rate aging attenuation. The varnish coating has an excellent antibacterial effect before aging, and the killing rates of Escherichia coli, Staphylococcus aureus and Candida albicans are greater than 99.99%. After 20 cycles of high and low temperature aging and more than 800 hours of light aging, the antibacterial effect has no obvious attenuation, and the killing rates of Escherichia coli, Staphylococcus aureus and Candida albicans are greater than 99.99%.

This utility model relates to the field of automotive seat leather technology and discloses an anti-mold polyurethane automotive seat leather, comprising an outer layer; a middle layer and a bottom layer are sequentially disposed below the outer layer, and the outer layer, middle layer and bottom layer are all bonded together by adhesive; the outer layer includes an anti-mold protective layer, and the middle layer includes a heat dissipation structural layer; the anti-mold protective layer and the heat dissipation structural layer are internally interconnected. By using polyurethane as the base material and through innovative anti-mold technology, the problem of traditional automotive seat leather being susceptible to mold erosion, odor growth, and impacting human health is fundamentally solved. This product not only possesses the wear resistance, scratch resistance, and easy cleaning properties of polyurethane material itself, but also effectively inhibits mold growth in complex in-vehicle environments such as humidity and high temperature, providing a healthier, more comfortable, and durable seat experience for drivers and passengers, while also meeting the urgent demand of the automotive industry for high-quality, environmentally friendly interior materials.