34results about How to "Easy to scatter" patented technology

The invention discloses a super wear-resistant mute felt material and a preparation method thereof. The felt material comprises the following preparation raw materials in percentage by mass: 30-70% of nylon fiber / bio-based polyamide fiber; 6-15% of graphene polyester fiber; 20-60% of polypropylene fiber; the thickness of the felt material ranges from 1 mm to 24 mm, and the gram weight ranges from 300 gsm to 2400 gsm. According to the invention, the material ratio is optimized, the performance advantages of each component material are fully exerted, the bio-based material and the environment-friendly finishing agent are selected, the influence on the environment is reduced, the interwoven structure and porosity among the fibers are improved by adjusting the physical characteristics of the fibers, such as thickness, length and cross section shape, the attraction coefficient can reach 0.72-0.81, and the mechanical properties of the fibers are improved. The felt has the advantages that the felt is high in wear resistance, can resist reciprocating wear for 200,000 times at most, can effectively control sound absorption, sound insulation balance and super wear resistance, is endowed with excellent waterproof, oil-proof and antifouling properties, can be applied to various occasions, and has a good application prospect.

The invention relates to the technical field of photocatalytic processes, in particular to a catalyst for preparing methanol through photocatalytic reduction of CO2 as well as a preparation method and application of the catalyst. The catalyst comprises a composite carrier and active sites dispersed on the surface or in pores of the composite carrier, the composite carrier is of a heterojunction composite structure formed by a hollow TiO2 sphere and MCN, the hollow TiO2 sphere comprises a shell layer and a spherical cavity structure located in the shell layer, the shell layer is formed by TiO2 nanoparticles, and the MCN has a mesoporous pore structure; a II-type or Z-type heterojunction interface is formed between the hollow TiO2 spheres and the MCN through physical contact and chemical action; the active sites comprise copper nano species, sulfur vacancy defects and amino groups; the copper nano species are copper nano particles or clusters, and the valence state of copper is 0 and / or + 1 valence amino is grafted on the surface of the composite carrier through an organic long chain. The catalyst provided by the invention can greatly improve the yield and selectivity of methanol prepared by photocatalytic reduction of carbon dioxide.

The invention relates to a preparation method of TiO2 and TiO2 / ZnO heterojunction based on a hollow structure and application of the TiO2 and TiO2 / ZnO heterojunction in an ultraviolet detector, the hollow structure TiO2 is a TiO2 hollow sphere, a TiO2 hollow cube and a TiO2 hollow dodecahedron, the hollow heterostructure is composed of the hollow structure TiO2 and a ZnO nanorod, the ZnO nanorod grows on the surface of the TiO2 hollow structure, and the whole ZnO nanorod is hedgehog-shaped; the prepared hollow-structure TiO2 and TiO2 / ZnO heterojunction is coated on a conductive surface of FTO conductive glass to prepare a working electrode, the working electrode is connected with a counter electrode through a heat sealing film, electrolyte is injected into an internal cavity to obtain the ultraviolet detector with high detection performance, and the ultraviolet detector is suitable for the field of ultraviolet detection. The method adopted by the invention has the advantages of simplicity in operation, low cost and high universality, different hollow-structure TiO2 and hedgehog-shaped TiO2 / ZnO heterojunctions such as spherical, cubic and dodecahedron heterojunctions are synthesized, an ultraviolet detector with a self-energy-supply characteristic is further prepared, and the application of a TiO2 nano material in the field of photoelectric detection is expanded.

The cleaning nozzle comprises an upper cover, a body and a surface cover, a containing cavity is defined by the body and the surface cover, a first water passing core is arranged in the containing cavity, the first water passing core is provided with a first water passing cavity and a second water passing cavity, the first water passing cavity is formed by a middle channel of the first water passing core, and the second water passing cavity is formed by a middle channel of the second water passing core. The second water passing cavity at least comprises a water passing groove formed in the outer wall of the first water passing core. The body is provided with a spraying cavity communicated with the containing cavity, and the spraying cavity forms a spraying opening in the body. The first water passing cavity and the second water passing cavity are both communicated with the water inlet flow channel, and water flow of the water inlet flow channel flows out of the spraying opening after passing through the first water passing cavity and the spraying cavity, so that a first water type is formed; water flow of the water inlet flow channel flows out of the jet orifice after passing through the second water passing cavity and the jet cavity to form a second water type. Jet of two water types can be achieved through the water passing core and the jet orifice, so that the cleaning mode of the nozzle is enriched, and meanwhile the water passing core and the jet orifice are not additionally arranged.

The utility model relates to the technical field of plate feeding machines, and discloses a scattering mechanism for a plate feeding machine. The scattering mechanism for the plate feeding machine comprises the plate feeding machine, a cement conveying and scattering mechanism is installed on the left side of the upper portion of the plate feeding machine, and a material conveying and paving mechanism is installed in the middle of the upper portion of the plate feeding machine. According to the plate feeding machine, the flattening plate is arranged above the plate feeding machine and located on the lower side of the front portion of the rotating fan, after the rotating fan flaps materials to be scattered, the flattening plate is fixedly installed through equipment such as a connecting ring and a fixing plate, the rising baffle is installed above the flattening plate, the rising baffle shields the excessively accumulated materials, and therefore the flattening plate can be used for flattening the materials. Meanwhile, the thickness of the materials on the surface of the plate feeder can be controlled through the distance between the flattening plate and the plate feeder, so that the materials above the plate feeder can be evenly distributed, conveying of the plate feeder is facilitated, and meanwhile the upper portion of the plate feeder cannot be pressed, and equipment cannot be damaged.

The invention belongs to the field of plastic product production and processing equipment, and particularly relates to a regenerated plastic particle storage, drying and conveying system which comprises a drying box, fixing plates are fixedly connected to the two sides of the left end face and the right end face of the inner cavity wall of the drying box, and a drying frame is fixedly connected to the piston end of a spring damper. A water filtering plate is fixedly connected to the middle of the inner side of the drying frame, a plurality of through holes are formed in the water filtering plate, and the drying frame is provided with an anti-particle extrusion type overturning dredging mechanism for preventing the through holes from being blocked by impurities. According to the anti-particle extrusion type turning dredging mechanism, in the process that plastic particles are thrown by a water filtering plate, a plurality of dredging rods can be driven to penetrate through a plurality of through holes, impurities attached to the hole walls of the through holes are pushed out under the action that the dredging rods abut against the hole walls of the through holes, and the impurities attached to the hole walls of the through holes are removed; and the situation that impurities block the through holes is avoided, normal passing of water is guaranteed, and the drying efficiency is improved.

The invention relates to the technical field of preparation of catalysts, in particular to a method for preparing a composite photo-thermal reduction CO2 catalyst through a coprecipitation method, which comprises the following preparation steps: S1, adding 2-6g of nano SiO2 powder and 2-8g of NaOH into 48-60g of modifier to obtain a silicon source solution; s2, 25-33 g of silver nitrate powder is slowly added into the silicon source solution under the condition of mechanical stirring, and a preliminary mixed solution is obtained; s3, slowly adding 0.4-1.3 g of cobalt nitrate powder into the preliminary mixed solution under the condition of mechanical stirring, and filtering after complete precipitation to obtain a co-precipitation product; and S4, washing the co-precipitation product with deionized water for 4-6 times, and then washing the co-precipitation product with absolute ethyl alcohol for 4-6 times to finally obtain the Ag9 (SiO4) 2NO3 / Co (OH) 2 photo-thermal reduction CO2 catalyst, namely the composite photo-thermal reduction CO2 catalyst. The method is obtained through a sol system coprecipitation reaction under the room temperature condition, the problems that an existing ion exchange method and an existing molten salt method are long in preparation period and complex in technology are solved, the reaction process is relatively simple, and complex equipment and harsh reaction conditions are not needed.

The utility model discloses an optical fiber grating assembly and an optical fiber laser, and belongs to the technical field of optical fibers. The fiber bragg grating assembly comprises an optical fiber, the optical fiber comprises a fiber core, a grating inscribing area is arranged on the fiber core in the axis direction of the fiber core, and a fiber bragg grating is arranged in the grating inscribing area. The first cladding annularly wraps the outer wall surface of the fiber core, a corrosion area is arranged on the outer surface of the first cladding, and the corrosion area is used for scattering cladding light. According to the utility model, the surface of the first cladding is provided with the corrosion area used for scattering the cladding light, so that the cladding light can be conveniently scattered and dissipated into the space, the light is prevented from being transmitted in the first cladding, and heat accumulation caused by the fact that the cladding light is reflected in the cladding is avoided.

The utility model discloses an anti-impact quantum dot diffusion plate, which relates to the field of diffusion plates and comprises a diffusion plate body, a protective frame is arranged on the side edge of the diffusion plate body, and the diffusion plate body comprises a quantum dot film layer, a diffusion plate layer and a protective layer. According to the scheme, the diffusion plate body, the protection frame, the quantum dot film layer and other devices are arranged to be matched, so that the diffusion plate body can be conveniently protected by the device, collision generated during installation is prevented from directly acting on the diffusion plate body, the diffusion plate body can be protected easily, and the impact resistance of the device can be improved easily; through cooperation of devices such as quantum dot particles, a wrapping layer and a protection frame, the device can conveniently form a layer of uniform protection film on the outer wall of the quantum dot particles, the stability of the quantum dot particles is improved, the influence of external environmental factors such as moisture, oxygen and heat is avoided, and the roughness of the surface of the plate is increased to a certain extent; the impact resistance is improved.

The utility model discloses a coal mining machine hydraulic auxiliary supporting device suitable for large-gradient down mining, which comprises a buckling part, and the vertical section of the buckling part is in a] shape with a backward opening; the rear surface of the buckling part is connected with an upper supporting seat and a lower supporting seat; the upper supporting seat is backwards connected with a cylinder body for supporting a hydraulic cylinder; the front part of the cylinder body is backwards and downwards connected with an inclined supporting column, and the inclined supporting column is backwards connected with a lower supporting seat; extension rods of the supporting hydraulic cylinders are forwards connected with the supporting top plate; the upper and lower supporting seats and the supporting hydraulic cylinder form a group of supporting devices; two or more supporting top plates are arranged side by side at intervals, each supporting top plate is connected with three sets of supporting devices, and the three sets of supporting devices are evenly arranged at intervals left and right. Through the supporting hydraulic cylinders, the state of the supporting top plates can be adjusted, the stress conditions of different supporting top plates and different parts of the same supporting top plate can be balanced, the stress of the guide sliding shoes is shared, the safety of down-dip mining operation is ensured, the abrasion of the guide sliding shoes of the coal mining machine is reduced, and the phenomenon that the coal mining machine turns over on one side is avoided.

The invention discloses flexible transparent epoxy resin as well as a preparation method and application thereof.The preparation method comprises the following steps: firstly, adding an amino silane coupling agent into an epoxy resin monomer at normal temperature, and uniformly stirring to obtain a mixed solution; then heating the mixed solution for reaction, and after the reaction is finished, carrying out vacuum treatment on the reaction solution to obtain a precursor solution; and finally, carrying out curing treatment on the precursor solution to prepare the flexible transparent epoxy resin. The preparation method is simple in process and reasonable in design, and the obtained flexible epoxy resin has good mechanical strength, thermal stability and transparency.

The utility model relates to an unmanned aerial vehicle megaphone which comprises an unmanned aerial vehicle body, sound baffles and a megaphone box, the unmanned aerial vehicle body comprises a first supporting leg and a second supporting leg which are of a U-shaped structure, the first supporting leg and the second supporting leg are sleeved with the sound baffles respectively, and the megaphone box is arranged at the bottom of the unmanned aerial vehicle body; the loudspeaker box body is provided with a first loudspeaker and a second loudspeaker, the sound output end of the first loudspeaker faces the sound blocking plate on the first supporting leg, and the sound output end of the second loudspeaker faces the sound blocking plate on the second supporting leg. And a sound transmission strip groove is formed in the sound baffle plate. The megaphone in the megaphone box body faces the sound blocking plate, air resistance and sound wave scattering can be effectively prevented, sound waves emitted by the megaphone are transmitted downwards through the sound transmission strip groove, the sound waves can be transmitted more intensively, and the problem that in the voice transmission process of the megaphone of the unmanned aerial vehicle, due to the influence of the air resistance and the sound wave scattering, the megaphone of the unmanned aerial vehicle can be effectively solved. The problem of limited voice transmission distance exists.

The invention relates to the technical field of printing machines, and discloses a printing machine material receiving device which comprises a material conveying mechanism which comprises a rack and a conveying belt, and the conveying belt is conveyed to the rack and used for conveying printed matter; the material bearing mechanism comprises a workbench and a material bearing basket, and the workbench is close to the discharging end of the conveying belt; the material bearing basket is placed on the working table and is provided with a material inlet through which printed matters enter the material bearing basket; when the material bearing basket carries out loading, the feeding port is located in the side, close to the conveying belt, of the material bearing basket, and at the moment, the inner bottom wall of the material bearing basket is a material bearing platform used for stacking of printed matter. The lifting mechanism is connected with the workbench and used for driving the workbench to ascend and descend so that the distance between the material bearing platform and the conveying belt can be adjusted when the material bearing basket carries out loading. According to the invention, the stacking smoothness of printed matters can be improved under the condition that the material taking frequency of operators is reduced.

The application provides a high beam module and a vehicle lamp. The high beam module comprises a light source for emitting light; a high beam lens arranged on the light emitting side of the light source, the high beam lens being an integral structure, the high beam lens comprising a light inlet surface, a first total reflection surface, a second total reflection surface, a third total reflection surface and a light outlet surface, the second total reflection surface and the third total reflection surface being oppositely arranged along a first direction, the light outlet surface being located on one side of the third total reflection surface along a second direction, the light emitted by the light source being projected to the first total reflection surface through the light inlet surface, the parallel light being formed after being reflected by the first total reflection surface, the parallel light being reflected by the second total reflection surface and the third total reflection surface in sequence, and the parallel light being emitted by the light outlet surface to form a high beam light pattern; the light outlet surface comprises a plurality of sub-light outlet surfaces arranged in sequence along a third direction, and the distance between the root of each sub-light outlet surface and the light source along the second direction gradually increases along the third direction. The application can improve the light efficiency of the high beam module while ensuring the narrow opening size.

This utility model provides a mesh belt receiving and dust removal device, belonging to the technical field of mesh chain conveyors. Its structure includes a main frame, a mesh chain conveyor, a mesh chain vibration device, a blowing device, a hand-cranked adjusting wheel, and a power motor. The mesh chain conveyor and the power motor are mounted on the main frame and are connected for transmission. The mesh chain vibration device is mounted on the mesh chain conveyor. A gantry frame is mounted above the mesh chain conveyor, and a lead screw is threaded onto the gantry frame. A hand-cranked adjusting wheel is fixedly connected to the lead screw, and a blowing device is located at the lower end of the lead screw. This utility model uses a combination of mechanical vibration and air blades to remove dust from the plates on the mesh chain conveyor, which not only saves manual operation but also integrates the conveying and dust removal processes, improving process efficiency.

The present invention provides a method for preparing an environmentally friendly and highly weather-resistant water-based automotive topcoat, comprising the following steps: mixing an acrylate monomer, an initiator and a chain transfer agent to prepare a mixed solution, adding a solvent to a reactor to raise the temperature, adding part of the mixed solution to the reactor, performing a heat preservation reaction to prepare a core layer resin material, adding an acrylate monomer to the remaining mixed solution, mixing to prepare a shell layer solution, adding the shell layer solution to the core layer resin material, continuing the heat preservation reaction, adding an amine neutralizer to the reaction solution for neutralization after the reaction, adding deionized water to adjust the solid content of the reaction solution, and preparing a water-based hydroxy acrylic acid dispersion; mixing and grinding the water-based hydroxy acrylic acid dispersion, pigments, fillers, additives and water to prepare component A, and uniformly mixing a water-based isocyanate curing agent and a solvent to prepare component B. The water-based coating provided by the present invention has good adhesion, excellent corrosion resistance, good mechanical properties, good weather resistance, and low preparation cost.

The utility model relates to the technical field of electromagnetic shielding, in particular to an anechoic chamber shielding door based on an electromagnetic shielding sealing structure, which comprises a shielding chamber, an anechoic chamber is formed in the shielding chamber through an anechoic chamber partition plate, and an anechoic chamber shielding door is mounted on the anechoic chamber partition plate; the radio-wave room shielding door comprises a shielding door body and wave-absorbing cotton, an insulating wood plate is arranged in the shielding door body, and ferrite and conductive aluminum foil are arranged between the insulating wood plate and the wave-absorbing cotton. The anechoic chamber shielding door is arranged on the anechoic chamber partition plate through a hinge. The shielding door of the shielding door radio-wave chamber is relatively independent and embedded in the side face of the steel plate, the unique design of double blades and three springs is adopted, the wave-absorbing cotton has good scattering and isolation attenuation performance under the conditions of vertical incidence and oblique incidence, and the ferrite has the same physical performance characteristic as an externally-installed ceramic tile and is high in shielding performance. The reed on the door is fixed by screws, and the hinge type pneumatic door is convenient to maintain.

The invention provides a lateral light guide optical fiber and an optical imaging mechanism with the same, the lateral light guide optical fiber comprises a first optical fiber, two ends of the first optical fiber are a light source end and an emergent end respectively, the light source end is used for receiving an external light source, and a fiber core and a first cladding guide the external light source from the light source end to the emergent end in an internal reflection mode. An included angle is formed between the first inclined plane and the extension direction of the first optical fiber, a second cladding is arranged on the surface of the first inclined plane, and a third cladding is arranged on the surface of the side, opposite to the first inclined plane, of the first optical fiber, so that light reflected by the interface of the fiber core and the second cladding is irradiated outwards through the interface of the fiber core and the third cladding. According to the scheme provided by the invention, the emission angle of the light beam is optimized through the inclined plane design, the adjustment of the light output angle and intensity can be realized, the light signal intensity of the received light is ensured, and greater design freedom degree and flexibility are provided, so that the light source can better meet the requirement of detecting the detected tissue.

The utility model discloses a semiconductor substrate structure which comprises a substrate and a polishing device, the polishing device is arranged around the substrate, a supporting column is installed at the bottom of the substrate, a base is installed at the bottom of the supporting column, the side face of the base is connected with a polishing solution conveying pipeline, and the polishing solution conveying pipeline is connected with the polishing solution conveying pipeline. One end of the polishing liquid conveying pipeline is connected with a connecting piece, the outer ring of the connecting piece is sleeved with a carrier, a pressure sensor is installed on the surface of the carrier, the bottom of the carrier is connected with a polishing disc, a polishing head is installed on the surface of the polishing disc, and a control panel is arranged on the surface of the base. An emergency stop button is arranged on the lower right portion of the base. According to the utility model, chemical mechanical polishing (CMP) is executed in semiconductor manufacturing through the polishing device, so that scattering of electrons on the surface of a semiconductor is reduced, the electron mobility is improved, the crystal quality is improved, the consistency is ensured, the process controllability is improved, the contact performance is optimized, and the leakage current is reduced.

This invention discloses a dielectric-magnetic synergistic loss type electromagnetic wave absorbing material, its preparation method, and its application. The dielectric-magnetic synergistic loss type electromagnetic wave absorbing material of this invention comprises rGO aerogel and Ni distributed in the rGO aerogel. x Co 1‑x Fe2O4 magnetic nanoparticles x The range of values ​​for is 0≤ x ≤1. The preparation method of the dielectric-magnetic synergistic loss type electromagnetic wave absorbing material of the present invention includes the following steps: mixing graphene oxide and Ni x Co 1‑x Fe2O4 magnetic nanoparticles are dispersed in water, then subjected to a hydrothermal reaction, followed by freeze-drying. The dielectric-magnetic synergistic loss-type electromagnetic wave absorbing material of this invention possesses advantages such as low density, small matching thickness, wide absorption bandwidth, high absorption intensity, and flexible adjustment of composition and properties, making it a promising candidate for applications in radar stealth and electromagnetic protection.

The utility model discloses a multifunctional vertical disc feeder for production, which is characterized in that a rack is formed between a bottom plate and a top plate through two side plates, a dustproof net is arranged on the periphery of the rack, a driving force component is fixedly arranged in the rack, a driving bevel gear is electrically connected to the driving force component, and a driving bevel gear is arranged on the driving bevel gear. The driving bevel gear is in driving connection with a driven gear disc through a power transmission chain, the driven gear disc is electrically connected with a kinetic energy conversion vibrator, the kinetic energy conversion vibrator is connected with a material receiving and mixing cavity, a material receiving pipe is arranged above the material receiving and mixing cavity, and a feeding disc is fixedly arranged on the material receiving pipe. According to the utility model, the kinetic energy conversion structure is arranged, so that transmission force can be converted into mixed vibration force for mixing materials discharged by the feeder; a sand accumulating groove is further arranged, so that the falling point of scattered sand is improved, and the shakeout is convenient to recover; and feeding dust is reduced through the arranged dustproof net, the human body is prevented from inhaling the feeding dust to affect health, the machine body is diversified in function, and the working efficiency is improved.

The mute elevator shaft is arranged outside an elevator and comprises a plurality of hollow plate units arranged in a connected mode, each hollow plate unit comprises a concrete shell and a plurality of layer plate assemblies arranged in the concrete shell, the plurality of layer plate assemblies and the concrete shell are enclosed, and a plurality of cavities are formed in the hollow plate units. And the cavity is filled with a sound absorption part. According to the mute elevator shaft, the elevator shaft body is formed by splicing the multiple hollow plate units, the concrete shell is used for providing a stable structure foundation, the multiple cavities defined by the internal laminate assemblies and the shell are matched with the filled sound absorption parts, a sound insulation and absorption system is constructed, and starting from the overall structure, the sound wave propagation path is divided through the cavity structures, and the sound absorption effect is improved; and noise energy is directly adsorbed by means of the sound absorption part, primary efficient weakening of various noise in elevator running is achieved, convenience is improved through the modular splicing mode, and the structural stability and the mute requirement are both considered.

The invention discloses a reflective heat-insulation coating and a preparation method thereof, and the reflective heat-insulation coating comprises the following components in percentage by mass: 10-50% of flaky barium sulfate; the particle size distribution of the flaky barium sulfate is 400 nm to 15 [mu] m. The flaky barium sulfate with a wide particle size range is used as a reflective heat insulation filler of the coating, so that the lightness, reflectivity, reflectivity and heat insulation effect of the coating can be effectively improved on the premise of a relatively large addition amount.

The utility model relates to the technical field of automobile license plate lamps, and discloses an anti-dazzling automobile license plate lamp which comprises an installation outer shell, and a protection shell is arranged on the left side of the installation outer shell. The triangular transparent prism is inserted into the bottom of the installation shell, and a motor is installed on the upper portion of an inner cavity of the protection shell; the first bevel gear is arranged at the position, corresponding to the triangular transparent prism, of the exterior of the connecting shaft, a rotating disc is arranged on the right side of the mounting frame, a shifting rod is connected to the outer end of the right side of the mounting frame, and a triangular transmission plate is arranged at the position, located on the lower side of the rotating disc, of the exterior of a shaft body of the connecting shaft. According to the anti-dazzling automobile license plate lamp, a motor drives a mounting frame and a rotating disc to rotate, so that a triangular transmission plate can be driven to rotate through a shifting rod, a second bevel gear can be driven to rotate through a connecting shaft and a first bevel gear, and then a triangular transparent prism can be subjected to three-face conversion; therefore, modes such as the refractive index of light can be changed under the influence of different light transmittances.

The fan comprises a machine head assembly, a supporting rod and a base, the top of the supporting rod is connected with the machine head assembly in a quick-release mode, the bottom of the supporting rod is connected with the top of the base in a quick-release mode, a containing cavity is formed in the base, and an opening communicated with the containing cavity is formed in the bottom face of the base. The bottom face of the base downwards covers the back face of the machine head assembly, and the supporting rod is contained in the containing cavity. The machine head assembly, the supporting rod and the base can be detached and then stored, the supporting rod is hidden, the occupied space is reduced, and storage is convenient.

The invention relates to a Dunhuang mural stone green series ceramic rock plate and a manufacturing method thereof. The manufacturing method comprises the following steps: (1) pressing a green body; the engobe is prepared from, by weight, 6 parts of washed kaolin, 3 parts of black mud, 18 parts of glass frit, 2 parts of diopside, 2 parts of quartz powder, 4 parts of barium-based frit, 12 parts of superfine quartz powder, 15 parts of zirconium white frit, 6 parts of calcined alumina powder, 3 parts of zirconium silicate, 10 parts of potassium feldspar, 7 parts of nepheline powder, 10 parts of ball clay, 2 parts of calcined talc, 0.6 part of sodium tripolyphosphate and 0.3 part of sodium carboxymethyl cellulose; (3) inkjet printing: combining color ink with blue, blue, brown, package yellow, bright red and black; (4) spraying green promoting glaze, wherein the formula of the green promoting glaze comprises the following components in parts by weight: 32 parts of high-zinc low-temperature frit, 28 parts of fused quartz, 17 parts of quartz powder, 14 parts of white carbon black and 9 parts of kaolin; (5) applying protective glaze: selecting the surface gloss and texture of the product according to the development of green products, wherein the surface gloss and texture can be dry granular glaze, matte or bright protective glaze; and (6) high-temperature firing.

The invention relates to net-shaped wave-absorbing foam and a preparation method thereof. Comprising the following raw materials in parts by mass: 70-90 parts of polyether glycol, 30-40 parts of polyester glycol, 2-5 parts of a micromolecular glycol chain extender, 15-25 parts of diisocyanate, 10-20 parts of a sealing agent, 0.01-0.1 part of a catalyst, 1-3 parts of dimethyl methylamino, 5-10 parts of a bridging agent, 0.5-1.5 parts of a flatting agent, 15-20 parts of carbon black, 5-15 parts of silicon carbide, 5-10 parts of barium titanate, 5-15 parts of carbon nanotubes and 5-10 parts of a dispersing agent. And 5-10 parts of a foaming agent. The net-shaped wave-absorbing foam provided by the invention has relatively high wave-absorbing effect and strength.

The present invention provides a physical sunscreen for sensitive skin and a preparation method thereof. The physical sunscreen for sensitive skin of the present invention is prepared by the following raw materials in parts by weight: 2.5 to 3.5 parts of nano zinc oxide, 1.5 to 2.5 parts of nano titanium dioxide, 1.3 to 2.1 parts of composite vegetable oils and fats, 0.3 to 0.4 parts of composite hyaluronic acid, 0.2 to 0.4 parts of composite plant extract A and 0.15 to 0.25 parts of composite plant extract B, wherein the nano zinc oxide is composed of 90 to 110 nm zinc oxide and 340 to 350 nm zinc oxide; the nano titanium dioxide is composed of 240 to 260 nm titanium dioxide, 340 to 350 nm titanium dioxide and 360 to 370 nm titanium dioxide. The sunscreen of the present invention is designed for sensitive skin, is mild and non-irritating, and has a good sun protection effect on sensitive skin, preventing sensitive skin from being sunburned.