30results about How to "Play a barrier" patented technology

The invention discloses porous phosphorus removing ceramic granules with a function of slowly releasing an alkali and a preparation method thereof. The prepared ceramic granules are an environmental material for efficiently removing phosphorus from municipal sewage and industrial wastewater. Based on the basic chemical properties of the phosphorus in water and a phosphorus removing mechanism by chemical absorption, the preparation method of the ceramic granules comprises the following steps of: mixing 20 to 40 mass percent of ordinary portland cement (42.5 level), 10 to 20 mass percent of bentonite, 10 to 20 mass percent of fly ash, 10 to 15 mass percent of calcium oxide, 15 to 25 mass percent of nitrocellulose, 14 to 30 mass percent of xonotlite fiber particle and 0.1 to 0.5 mass percent of pore-creating agent; adding water for stirring the mixture according to a water-solid ratio of 0.35 to 0.45; granulating the mixture into granules with required grain sizes; and after the granules are foamed and solidified, curing the granules by using high-temperature steam to obtain the ceramic granules. The method has the advantages of simple preparation process, readily available raw materials, low cost and wide application prospect in the field of the removing of the phosphorus in water bodies. The prepared ceramic granules have the characteristics of capacity of slowly releasing the alkalis, silicic and calcareous textures, porosity, capacity of continuously and efficiently absorbing and removing the phosphorus and suitability for phosphorus removing systems of the municipal sewage and the industrial wastewater.

The invention discloses a quantum dot sealing method, a quantum dot compound particle and applications. According to the method, quantum dots are made into quantum dot compound particles, then a blocking layer is arranged on the surface of each quantum dot compound particle so as to seal the quantum dots; after sealing, the interaction among quantum dots is reduced, thus the possibility of agglomeration is reduced; moreover, the air and water are obstructed; at the same time, the possibility that quantum dots are disturbed and destroyed by contacting the external environment, when the quantum dots are further dispersed into other materials or cured or during the device preparation process is reduced; the luminous efficiency of quantum dot is improved effectively, the service life of quantum dot is prolonged; and the provided quantum dot compound particle can be applied to optical devices such as light conversion material of liquid crystal display and has the advantages of high luminous efficiency of quantum dots and long service life.

The invention relates to the field of wood processing, in particular to a paint-brushing and dust-removing device for wood boards. The paint-brushing and dust-removing device comprises a machine enclosure and a transmission mechanism positioned at the lower end of the machine enclosure, and further comprises a dust-removing part and a paint-brushing part fixed on the machine enclosure, wherein the dust-removing part is arranged at the inlet end of the transmission mechanism; the paint-brushing part is arranged at the outlet end of the transmission mechanism; the dust-removing part comprises a brush and a dust-sucking mechanism; the brush is in sliding connection with the machine enclosure; the dust-sucking mechanism sequentially comprises a dust collecting part, a cloth bag and a fan from bottom to top; the paint-brushing part is provided with a roller and a paint barrel; and the roller and the paint barrel are connected through a feeding tube. The paint-brushing and dust-removing device integrates dust-removing and paint-brushing, so that paint brushing quality is guaranteed.

The invention discloses a liquid crystal flame-retardant foam material and a preparation method thereof. The preparation method comprises the following steps: with an aromatic diphenol monomer, an aromatic diacid monomer and a terminated hydroxyl and terminated carboxyl containing aromatic monomer as raw materials, in the presence of an active terminal group, a catalyst and an acetic acid compound, under the protection of nitrogen, reacting for 30-60min at 120-140 DEG C; then, raising the temperature to 280-325 DEG C at the rate of 0.5-1.5 DEG C / min, and reacting for 1-3h to obtain a solid; performing vacuum heating on the solid to obtain the liquid crystal flame-retardant foam material. According to the preparation method, acetic acid as a byproduct remaining during a polycondensation reaction of a liquid crystal polymer is used as a foaming agent, CO2 is decomposed and released to form a microporous structure at high temperature, and a curing reaction is performed on a matrix to forma crosslinked network structure, so that a novel method for preparing the liquid crystal flame-retardant foam material is opened up; particularly, a flame retardant is not required to be added to achieve a flame-retardant effect, and a UL-94 V0 flame retardant rating is reached; in addition, the preparation method has the characteristics of environment friendliness, simpleness, convenience and wide applicability.

The invention relates to a preparation method of a nano particle reinforced ABS (acrylonitrile butadiene styrene) composite material and belongs to the technical field of ABS composite materials. The preparation method provided by the invention comprises the following steps of: firstly coating nano particles by utilizing a surfactant to form surface modified nano particles and then carrying out melt blending on the surface modified nano particles with ABS by utilizing a double screw extruder to obtain ABS composite material aggregates, wherein the surface modified nano particles are organic montmorillonite, nano titanium dioxide and nano hydrotalcite. When the preparation method provided by the invention is applied to modification of recycled ABS, mechanical property and ageing resistance of the recycled ABS can be obviously improved, the properties of the modified ABS can meet and even be higher than the standard requirements of plastic parts for a motorcycle and an electric vehicle, and the modified ABS can replace a new ABS material.

The invention relates to the technical field of fireworks and firecrackers, in particular to a desensitizer for pyrotechnic composition and preparation method. According to the parts by weight, the desensitizer for pyrotechnic composition comprises 20-30 parts of magnesium oxide, 10-15 parts of zinc oxide, 2-4 parts of calcium stearate, 1-5 parts of antimony trioxide, and 10-15 parts of titanium dioxide, 5-10 parts of polyazide glycidyl ether, 1-3 parts of ammonium dinitramide. The desensitizer for pyrotechnic composition has good diffusion performance, moisture resistance, stability and invariability, which can be stored for a long time without deterioration and can better mix the other components of pyrotechnics.

The invention provides an automobile fuel tank. The automobile fuel tank comprises an outer shell and an inner shell. A plurality of first buffering devices are arranged between the top and the bottom of the inner shell and between the inner top and the inner bottom of the outer shell. A plurality of second buffering devices are arranged between the outer sidewall of the inner shell and the inner sidewall of the outer shell. The top center of the outer shell is provided with an oil filling pipe. A cover body is arranged at the top end of the oil filling pipe. The oil filling pipe is internally provided with a tubular screen body. The lower end of the oil filling pipe communicates with an oil filling port formed in the top center of the inner shell through a corrugated pipe. A sealing ball used for sealing the oil filling port is arranged under the oil filling port in the inner shell. The lower end of the sealing ball is provided with a supporting plate. A plurality of first springs are arranged at the lower end of the supporting plate. An L-shaped supporting plate is arranged in the position, on one side of the oil filling port, of the inner top wall of the inner shell. The lower ends of the first springs are connected with the horizontal part of the L-shaped supporting plate. The outer wall of the inner shell is provided with a plurality of cooling assemblies. The inner sidewall of the outer shell is provided with a plurality of exhaust fans. Air outlets of the exhaust fans are located outside the outer shell.

The invention relates to a front lower fender of an engine and a truck and belongs to the technical field of truck making. The front lower fender comprises a fender body and a connecting part, wherein the fender body comprises a base plate and two lateral plates, the fender body comprises a first end and a second end which are oppositely arranged, the first end is provided with a U-shaped notch, the edge of the second end is turned towards the engine, the opening of the U-shaped notch faces a direction away from the second end, and one end, away from the base plate, of each lateral plate is connected with the connecting part. The front lower fender with the U-shaped notch is reasonable in structural design, can well attach to the engine and can block muddy water and dust. The truck comprises the front lower fender, the engine is allowed to prevent the dust and the muddy water, and the service life of the truck is prolonged.

The invention discloses a preparation method for a controllable biodegradable material. The preparation method is characterized by comprising the following steps of: 1) starch radiation modification; 2) mixing: adding a nanometre assistant, polyvinyl alcohol, stearic acid, polylactic acid, a radiation sensitizer and an accelerant in the treated modified starch, adequately stirring, and uniformly mixing; 3) radiation copolymerization: placing the mixed sample in an aluminium foil bag carrying out packaging and sealing treatment in a vacuum or by charging nitrogen, and then carrying out radiation treatment on the packaged sample; 4) granulation / membrane preparation: uniformly pouring the mixture subjected to radiation copolymerization in a double-screw double-exhaust extrusion granulator group or a double-screw double-exhaust extrusion pelletizer group, and carrying out extrusion granulation or pelletizing; 5) radiation degradation rate control: radiating the product obtained by granulation / membrane preparation while controlling the dosage to be 10-100 kGy and controlling the dosage non-uniformity U of the product to be not greater than 1.3. According to the preparation method disclosed by the invention, the problems of cumbersome process, high-temperature energy consumption, and inevitably-brought pollutant discharge of a common chemical method are overcome, and the object of controlling the decomposition rate is realized.

The invention discloses a preparation method of an adsorption-type attapulgite-based flame-retardant material. The preparation method includes: using adsorption-type attapulgite as a core; performing layer insertion and stripping on montmorillonite in the adsorption-type attapulgite clay through melamine-formaldehyde resin polymerization to obtain the adsorption-type attapulgite-based flame-retardant material. The flame-retardant material obtained by the preparation method has the advantages of capability of retarding flame and inhibiting flue gas and high compatibility with high molecular materials.

The invention discloses a preparation method of a high-transparency medical PVC (polyvinyl chloride) hard sheet, belonging to the technical field of medical material preparation. The method comprises the following steps: modifying nano silicon dioxide with a silane coupling agent, mixing the modified nano silicon dioxide with a heat stabilizer, a plasticizer and PVC, mixing a lubricant dimethyl silicone oil and an anti-yellowing agent blue ultramarine with the self-made modified nano silicon dioxide, and carrying out extrusion granulation and calendering molding to obtain the high-transparency medical PVC hard sheet. The PVC is treated by different temperature gradients and stirring rotation speeds, so that the PVC granules are broken and refined, thereby enhancing the transparency after molding; and the modified nano silicon dioxide is added to permeate into the defects and near the residual unsaturated double bonds in the PVC, acts with unsaturated electron clouds, and is combined with the PVC macromolecule to form a network structure, thereby achieving the goal of enhancing strength and toughness and increasing light stability on the premise of enhancing the transparency of the material, and effectively solving the problems of low transparency and high yellowing tendency in the traditional PVC hard sheet.

The invention discloses silicon modified graphene water-based paint which is prepared from the following components in parts by mass: 25 to 60 parts of water-based resin, 0.3 to 1.5 parts of neutralizer, 3 to 12 parts of curing agent, 1 to 20 parts of silicon modified graphene slurry, 0.1 to 2 parts of catalyst and 20 to 35 parts of water. Meanwhile, the invention also discloses a preparation method of the silicon modified graphene water-based paint. The silicon modified graphene water-based paint has excellent corrosion resistance, graffiti penetration resistance and graffiti durability resistance, is not limited by types of film-forming resins, and is low in cost and wide in application range.

The invention discloses a sterilization production method of packaged water suitable for safe drinking of mothers and infants. The method comprises the following steps of firstly, continuously sterilizing water in an overflow tank through a pulse light lamp on the overflow tank, then conveying a first group of multiple packaging bottles to the position under the overflow tank along with a conveying belt, completing water injection, then conveying the packaging bottles to the position under a cover placing device along with the conveying belt, completing cover mounting, finally, conveying the packaging bottles to the position under a film wrapping device along with the conveying belt, completing cover sealing, and then conveying the packaging bottles to a packaging area to be encased and packaged. According to the method, a water injection tower for sterilization through the pulse light lamp, the cover placing device for automatic cover falling and bottling and a cover sealing device for bottle cover film wrapping are sequentially arranged on one side of the conveying belt, so that the procedures of sterilization, cover mounting and cover sealing are sequentially completed, an anti-bacterial outer cover arranged on the conveying belt plays a role in protecting and blocking outside air, it is guaranteed that the procedures are completed in a sterile environment, and the sterile quality of the water in the packaging bottles is guaranteed.

The invention discloses an environment-friendly beverage packaging bag which comprises the following raw materials in parts by weight: 50-60 parts of polybutylene succinate, 16-18 parts of polybutylene terephthalate adipate, 2.6-3.2 parts of modified chitosan, 2.2-2.5 parts of carbon nanotube whiskers, 1.8-2 parts of mica powder and 0.5-0.7 part of a coupling agent. The invention further disclosesa processing technology of the packaging bag. According to the invention, the copolymer of polybutylene succinate and polybutylene terephthalate adipate is used as the polymer matrix of the packagingbag, so that the polymer matrix not only meets the environment-friendly performance of easy degradation, but also has good mechanical properties and heat resistance. By adding modified chitosan and carbon nanotube whiskers and carrying out coupling agent treatment before blending with a polymer matrix, the environment-friendly packaging bag which is easy to degrade, high in mechanical property and barrier property and antibacterial is obtained, and the environment-friendly packaging bag is suitable for packaging beverages.

The present invention provides a cocoon laying device of a hot air cocoon drying machine. The device comprises a front plate and a back plate, a conveying mechanism is arranged between the front plateand the back plate, a blocking mechanism, a flattening mechanism and a limiting mechanism are orderly arranged from left to right above the conveying mechanism, and the conveying mechanism comprisesa first conveying roller, a second conveying roller and a conveyor belt, the blocking mechanism comprises a blocking front plate, a blocking back plate and a blocking top plate, the flattening mechanism comprises a flattening front plate, a flattening back plate and a flattening roller, and the limiting mechanism comprises a front limiting member and a back limiting member. The cocoon laying device has the advantages that an inclined plate is convenient for placing cocoons on the conveyor belt, a partition blocking baffle can buffer and block the cocoons by a blocking cylinder such that a phenomenon that the cocoons are too many and are difficult to lay is prevented, the laying operation of the cocoons of different thicknesses can be satisfied through a flattening cylinder, the automatic flattening operation of the cocoons is achieved, and the production efficiency is high.

The invention relates to the technical field of display devices, and discloses a flexible display screen laminating device and a working method thereof. The flexible display screen laminating device comprises a laminating mechanism, a feeding mechanism and a mounting mechanism, the feeding mechanism is arranged above the laminating mechanism, the laminating mechanism is arranged above the feedingmechanism, and the laminating mechanism comprises a laminating plate; a limiting frame is movably installed on the bottom face of the laminating plate and composed of four rectangular plates which aredistributed in a rectangular shape, telescopic equipment is arranged above the right side of the laminating mechanism, the top face of the laminating mechanism is fixedly connected with a transmission shaft of the telescopic equipment, and the top face of the telescopic equipment is fixedly connected with a connecting plate. The bottom surface, corresponding to the center of the laminating mechanism, of the connecting plate is fixedly connected with a pull rod through a universal ball, through the arrangement of the laminating mechanism, during laminating operation, a laminating wheel can rotate and extrude along the edges of the display device and the flexible assembly, and laminating pressure is concentrated on the edges of the display device and the flexible assembly. The problems of poor laminating effect and low efficiency caused by pressure dispersion are avoided.

The invention discloses a deep-well garage fine water spray fire fighting system. The deep-well garage fine water spray fire fighting system comprises a power distribution control system, a water supply system, a high-pressure pump unit system, a thermal inductance and smoke induction system, a pipe network system and a fine water spray system, wherein the power distribution control system, the water supply system, the high-pressure pump unit system, the thermal inductance and smoke induction system, the pipe network system and the fine water spray system are connected in a coupling manner insequence. The fine water spray system is arranged in a deep-well garage in a covering manner, and comprises a plurality of fine water spray nozzles. Corresponding fine water spray nozzles are arrangedon each stall of the deep-well garage at the adjacent positions on the upper part and the lower part, and the adjacent positions on the left part and the right part. The fine water spray nozzles arearranged on the left face and the right face, which are opposite, of the deep-well garage alternatively in the depth direction of the deep-well garage. The deep-well garage fine water spray fire fighting system can evenly spray fine water spay to the whole protected area (deep-well garage) to protect all the protected objects (vehicles) in the protected area, achieves the effects of surface cooling, suffocation, radiant heat obstruction and soaking, achieves the purposes of controlling a fire, inhibiting a fire and putting out a fire, and is friendly to the environment without toxin or pollution.

The invention discloses a polymer composite material with high gas barrier property. The preparation method comprises the following steps: 01, carrying out oxidation modification on graphene to obtain graphene oxide; 02, mechanically mixing high-density polyethylene and graphene oxide according to a certain proportion by using low-energy ball milling; 03, extruding and granulating the mechanically mixed high-density polyethylene and graphene oxide through a twin-screw extruder; 04, preparing a 500-micron sheet by using a plate vulcanizing machine; and 05, testing the permeability coefficients of CO2 and CH4. The polymer composite material provided by the invention has high gas barrier property on the basis of not influencing mechanical properties, can be particularly applied to flexible risers for offshore oil and gas, and also can be applied to general risers with required gas barrier property.

The invention discloses a flexible pipe for conveying oil gas and hydrogen, which sequentially comprises an inner lining layer, a reinforcing layer, an inner protective layer, a counterweight layer and an outer protective layer from inside to outside, and comprises the inner lining layer, the reinforcing layer, the inner protective layer, the counterweight layer and the outer protective layer, the reinforcing layer comprises a first metal filament; an inner protective layer including a second polymer; the counterweight layer comprises a second metal filament; and an outer protective layer, the outer protective layer including a third polymer. The flexible pipe is prepared from a high-temperature wear-resistant material, a gas barrier material, a buffer material, a heat-resistant hot-melt material and the like together, and has the effects of blocking and conveying a medium.

The invention discloses medical protective clothing capable of protecting microorganisms. The medical protective clothing comprises a protective cap, a protective jacket, protective trousers and protective shoe covers, the protective clothing body is sewn to form an integrated totally-closed structure, and breathable strips are arranged on the surfaces of sewing lines at the lower jaw, cuffs, a thorax and abdomen, a waist and ankles of the protective clothing body. Each breathable strip comprises a plurality of bidirectional breathable strip structures, and each bidirectional breathable stripstructure comprises an air inlet and a ventilation opening formed in the top layer and the bottom layer, an air bag connected with the air inlet and the ventilation opening, and a transition belt connected with the air bag through an air supply pipeline. The air inlets and the air vents are arranged in a staggered manner, antibacterial fibers are arranged in the transition belt, and antibacterialmaterials are arranged on surface fluff of the antibacterial fibers; and a one-way breathable strip valve is arranged at the two-way breathable strip opening in only one side of each breathable stripstrip. The problem that existing medical protective clothing is weak in whole-body sealing is solved, potential safety hazards caused by gas flowing into the protective clothing at joints are reduced,and whole-body protection is achieved.

The invention discloses sediment pollution blocking particles as well as a preparation method and application thereof. According to the particles, natural minerals such as gravels are used as framework materials, and expandable functional materials such as sodium bentonite are adhered to aggregate through an adhesive, so that the particles can quickly reach the surface layer of the bottom mud and absorb water to expand, and a continuous and highly impermeable isolating layer resistant to scouring of certain water flow is formed on the surface layer of the polluted bottom mud. The particles are combined with various covering materials to achieve oxidation reduction, supporting, blocking and protection effects respectively, and after the particles are laid in sequence, a stable composite covering layer is formed between muddy water. Polluted sediment is effectively prevented from releasing pollutants such as ammonia nitrogen and total phosphorus to overlying water after covering, and benign improvement of water quality of a water body is promoted. AVS release and bottom mud gas production are effectively prevented, and the problems of black and odorous water body and mud cake caused by release of gas such as bottom mud AVS are solved. Heavy metals, POPs and the like are effectively prevented from migrating to overlying water, and the exposure risk of toxic pollutants is reduced.

The invention discloses a medical protective eyeshade for preventing harmful light and infection after an eye operation, which comprises an eyeshade frame body, lenses arranged in the eyeshade frame body, an elastic isolation gasket which is arranged on the eyeshade frame body and is in close contact with the skin around the eyes and the nose of a wearer, and elastic bandages arranged on the two sides of the eyeshade frame body, wherein the eyeshade frame body is provided with at least one vent hole assembly for ventilating eyes, each lens comprises a resin lens substrate, and the following components in parts by weight are also added into each resin lens substrate: 80-200 parts of coloring agent; 4-10 parts of a dyeing assistant; 5-6 parts of an ultraviolet light absorber; and 10-20 partsof a short-wave visible light absorbent. According to the invention, the protection concept of 'absorption' or 'blocking' of the traditional protection lens is broken through, and the protection concept of 'absorption-blocking' is adopted, so that the problem that harmful light with different wavelengths cannot be thoroughly protected is solved, and the object color of an object is not changed when a wearer sees the environment.

The invention relates to the technical field of waste gas treatment, and discloses a dust collection polar plate for plasma organic waste gas treatment. The dust collection polar plate comprises a frame body, wherein the inner walls of the frame body are provided with sliding holes; sliding grooves are formed in the inner walls of the sliding holes; reset springs are fixedly connected to the innerwalls of the sliding grooves; the reset springs are fixedly connected with a movable plate; a rectangular bulge is arranged on the top surface of the movable plate; a circular hole is formed in the rectangular bulge; a round rod is sleeved in the round hole; and electrode plates are laid on the outer walls of each round rod. Compared with a mode of removing particles by shaking, through the arrangement of the structures such as the electrode plates, no large-amplitude and high-frequency movement is generated in the particle removing process, no noise is generated, and the stability of the plasma treatment equipment is not reduced. In addition, the particles can be automatically separated from the electrode plates and do not stay on the electrode plates after the electrode plates lose electric power circulation, the particle treatment efficiency is high, the falling particles can be covered by the next row of electrode plates, direct contact with rising waste gas is blocked, and the treatment effect of the particles in the waste gas is enhanced.

The invention belongs to the technical field of sewer devices, and particularly relates to an anti-seepage structure of a sewer device. The anti-seepage structure comprises a water receiving platform, wherein a sewer opening is formed in the middle of the water receiving platform, a floor drain installation position is arranged on the upper side of the sewer opening, and a floor drain core is arranged in a floor drain; a drainage face with the high outer portion and the low inner portion is arranged at the top of the water receiving platform; the drainage face collects water falling on the water receiving platform to the sewer opening, a water retaining ring is arranged on the peripheral side of the sewer opening, a plurality of first water passing holes are formed in the wall face of the water retaining ring, a rubber ring is arranged on the inner side of the water retaining ring, and gaps for water flow to pass through are formed between the rubber ring and the first water passing holes; and when the pressure of the inner side of the rubber ring reaches the set condition, the rubber ring can expand outwards and be attached to the first water passing holes. Accordingly, water seeping from the gaps is received through the water receiving platform, then the drainage face of the water receiving platform guides accumulated water to flow to the sewer opening to be drained, and finally the phenomenon that the accumulated water remains on a cement bottom plate, and consequently a room generates peculiar smells is avoided.

The invention relates to the field of optical fiber materials, in particular to a plastic optical fiber with a modified nanometer material and a manufacturing method of the plastic optical fiber withthe modified nanometer material. The plastic optical fiber with the modified nanometer material comprises a core layer and a skin layer. The skin layer is arranged on the periphery of the core layer.The core layer material is made of modified polymethyl methacrylate. The skin layer material is made of modified polyethylene terephthalate. The plastic optical fiber with the modified nanometer material and the manufacturing method of the plastic optical fiber with the modified nanometer material solve the serious problems that a POF is poor in heat resistance and high in water absorption rate, and when the POF is used on the occasions with the high environment temperature or humidity, signal attenuation is high, and the POF is prone to aging. The manufactured plastic optical fiber has the advantages of being high in wear resistance, relatively excellent in heat insulation and hydrophobicity and lower in cost, being suitable for serving as a communication optical fiber and being particularly suitable for short-range light transmission materials such as decoration fabric.

The invention discloses an integrated die-casting device based on aluminum alloy preparation. An electric telescopic rod is fixedly installed at the bottom of the base at one side of the static mold base. The top end of the electric telescopic rod is fixedly connected with a support plate. One end is movably installed with a material receiving plate through a movable shaft, a groove is provided at one end of the top of the material receiving plate, and a feeding port is provided at the end of the top of the melting furnace close to the static mold seat, and the top of the melting furnace is fixedly installed at the side of the feeding port There is a baffle, and a solid-liquid separation plate is fixedly installed in the middle of the melting furnace. Through the combined use of the electric telescopic rod and the material receiving plate, the remaining material can be conveyed upwards, and the remaining material can be collected and recycled to avoid the accumulation of the remaining material. Garbage will cause the working environment to be messy. Through the use of the solid-liquid separation plate, it is convenient to separate the remaining materials inside the melting furnace, so as to avoid the failure of conveying raw materials caused by the blockage of the internal components of the melting furnace or the metering pump by the solid remaining materials.

The present invention provides a nanometer sponge composite sound absorption plate and applications thereof, and belongs to the field of sound absorption materials. The nanometer sponge composite sound absorption plate at least comprises two layers, wherein the bottom layer is a main plate body, the main plate body adopts a closed-cell structure, the outer layer is a nanometer sponge layer and is arranged on the side close to a sound source compared to the main plate body, and the main plate body and the nanometer sponge layer are compounded so as to form the nanometer sponge composite sound absorption plate, wherein the nanometer sponge composite sound absorption plate can be used for the noise reduction in the fields of decoration, tunnels and equipment. According to the present invention, the nanometer sponge is used as the carrier, and the sound absorption and noise reduction purpose is achieved by using the porous structure of the nanometer sponge, such that the further supplementation for the sound insulation and reflection effect of the sound absorption plate can be achieved; and after the photocatalyst is loaded on the nanometer sponge, formaldehyde and other harmful gases can be removed, and indoor air can be purified so as to enrich and expand the original function of the sound absorption plate.

The invention discloses a silicon-modified graphene water-based coating, which comprises the following components in parts by mass: 25-60 parts of water-based resin, 0.3-1.5 parts of neutralizing agent, 3-12 parts of curing agent, and silicon-modified graphene slurry 1-20 parts, catalyst 0.1-2 parts, water 20-35 parts. At the same time, the invention also discloses a preparation method of the silicon-modified graphene water-based paint. The silicon-modified graphene water-based paint provided by the invention has excellent anti-corrosion, anti-graffiti penetration and long-lasting anti-graffiti properties, is not limited by the type of film-forming resin, has low cost, and has a wide range of applications.