106results about How to "Strong self-cleaning" patented technology

The invention provides an antireflection and self-cleaning thin film and a preparation method thereof. According to the preparation method, a solid figure structure of a micron size is processed on a transparent flexible thin film through adopting imprinting technologies and surface modification technologies, so that the transparent flexible thin film has antireflection and self-cleaning performance; the antireflection and self-cleaning thin film is integrated on the window layer of a solar battery assembly, and as a result, the surface reflection of the window layer can be effectively inhibited, and the number of photons entering the absorption layer of a battery can be increased; and therefore, the photoelectric conversion efficiency of the battery can be improved, and especially, the efficiency of the battery can be improved more significantly when sunlight obliquely enters the battery. A super hydrophobic film or a super hydrophilic film can be selected as the antireflection and self-cleaning thin film of the invention; since the super hydrophobic film has a high water contact angle, when the super hydrophobic film tilts, water droplets are very easy to roll down and take away surface pollutants, and therefore, a self-cleaning effect can be realized; and based on the photocatalysis, the super hydrophilic film can degrade surface organic contaminations, and therefore, a self-cleaning effect can be also realized.

The invention relates to a self-clean self-purification cement-based facing material and a production method thereof. The self-clean self-purification cement-based facing material comprises the following components in parts by weight: 20-30 parts of white silicate cements, 5-10 parts of mineral admixtures, 0-20 parts of quartz sands of 20-30 meshes, 20-30 parts of quartz sands of 40-70 meshes, 20-30 parts of quartz sands of 70-100 meshes, 1-4 parts of kieselguhr, 2-4 parts of zeolite, 0.2-0.6 part of nanometer titanium dioxide, 0.5-2.0 parts of EVA redispersible latex powder, 0.2-0.8 part of organic silicon water repellent, 0-1 part of ferric oxide inorganic pigment and 0.1-0.7 part of other chemical additive. The self-clean self-purification cement-based facing material, provided by the invention, has the advantages of good self-clean property, good self-purification property, good air purification capacity, good adhesive property, good construction property, good endurance quality, higher compression strength and the like, when the self-clean self-purification cement-based facing material is used for decoration of facings of an inner wall space and an outer wall space of a building, the air purification effect and the decoration effect are good, and the self-clean self-purification cement-based facing material can be applied for decoration engineering of all kinds of facings of walls of buildings.

A composite spherical active carbon adsorbent is prepared by the following raw materials by weight: 100-120 parts of active carbon, 20-25 parts of clay, 6-8 parts of glyceryl triacetate, 15-20 parts of wooden saw dust, 5-7 parts of eleaostearic acid, 15-20 parts of walnut shell, 7-9 parts of polyacrylamide, 3-5 parts of titanium dioxide, 4-5 parts of modified diatomite, and a proper amount of water. The spherical active carbon adsorbent has advantages of reasonable composition, novel preparation technology and simple equipment structure, the prepared finished product reaches an ideal effect on the indexes of compressive strength, powder drop rate, iodine adsorption, benzene adsorption and desulphurization; and the spherical shape makes it easy for the adsorbent to flow, and makes it convenient for the adsorbent to be subpackaged and packaged by using current various packaging equipment. Titanium dioxide is used to make the adsorbent provided by the invention have advantages of very strong UV absorption performance, infrared reflection characteristic, self-cleaning performance, and sterilization and deodorization in the medical field.

The invention discloses a method for preparing hydrophobic wood, relates to a method for modifying wood, and solves the problems that a modifier has high toxicity and peculiar smell and changes wood color, the treatment process is complex and only single performance of the wood can be improved in the conventional wood modification method. The method comprises the following steps of: mixing a fluorine-containing polymerizable monomer, an unsaturated monomer and an initiator to prepare impregnation liquid; adding the wood and the impregnation liquid into a reaction tank, vacuumizing, performing pressure treatment so as to inject the impregnation liquid into a pore structure of the wood, coating a test piece and ageing at room temperature and constant pressure; and heating and performing vacuum drying to prepare the hydrophobic wood. The method is simple, the wood color is not changed, peculiar smell is absent, the parallel-to-grain compressive strength is 70 to 98 MPa, the expansion resistance rate after the wood is continuously soaked in water for 200 hours is 48 to 65 percent, the weight loss ratio after 12 weeks of fungi erosion is 6 to 13 percent, the water contact angle is more than 130 degrees, and the wood can be widely used as indoor and outdoor structural materials and decorative materials.

The invention discloses an F-Si acrylate copolymer and a use method thereof as a vehicle paint sealant. The copolymer is a free radical polymerization reaction product by initiating the following components in percentage by weight with an initiator under the existence of an emulsifier: 35-55 percent of hard monomer, 20-50 percent of soft monomer, 0.5-5 percent of functional group monomer, 5-15 percent of fluorinated monomer, 3-16 percent of silicone monomer and 2-5 percent of nano material, wherein water is 100-150 percent of the total mount of the monomers, the initiator is 0.4-3 parts, and the emulsifier is 1.2-2 percent. The invention is applied to a vehicle paint face so that the vehicle paint face has the advantages of resisting water, oil, ultraviolet rays, static electricity, stain, washing, and the like and has the excellent self-cleaning function.

The invention relates to the field of a ceramic tile and particularly provides a self-cleaning ceramic tile and a preparation method thereof. The self-cleaning ceramic tile mainly comprises an unglazed tile, a bottom-layer immobilizing membrane and a surface-layer immobilizing membrane; the surface of the unglazed tile is coated with the bottom-layer immobilizing membrane and the surface-layer immobilizing membrane sequentially; each of the bottom-layer immobilizing membrane and the surface-layer immobilizing membrane consists of specific components with specific content; tiny pores exist on the surface of the unglazed tile, so that attachment of the bottom-layer immobilizing membrane is facilitated; the bottom-layer immobilizing membrane has strong adhesive force, is not liable to remove,has high extensibility, elastoplasticity, anti-cracking property, anti-permeability and weather resistance, and has high bondability with the unglazed tile and the surface-layer immobilizing membrane; the surface-layer immobilizing membrane can significantly improve the self-cleaning ability of the surface of the ceramic tile, and has high bondability with the bottom-layer immobilizing membrane and high weather resistance. In the self-cleaning ceramic tile, the unglazed tile, the bottom-layer immobilizing membrane and the surface-layer immobilizing membrane cooperate with one another to forma whole body, and the advantages of high self-cleaning ability, high chemical corrosion resistance, weather resistance, high stability and low cost are achieved.

The invention discloses a stain-resistant artificial stone plate and a preparation method thereof. The stain-resistant artificial stone plate provided by the invention is prepared by using a mixture of quartz sands with different particle sizes and quartz powder, resin, stain-resistant active factors and water as raw materials so as to prepare an artificial stone plate, and subjecting the obtained artificial stone plate to special treatment so as to form a micron-grade thin film which has hydrophobic and oleophobic characteristics and self-cleaning property and enables the stain-resistant property of the obtained stain-resistant artificial stone plate to be improved by 2 grades compared with the stain-resistant property of a convention artificial stone plate; thus, stains on the surface of the stain-resistant artificial stone plate in the invention can be cleaned without using of a cleaning agent in 15 days. The stain-resistant artificial stone plate provided by the invention has a normal service life of more than 20 years and is suitable for popularization and application.

The invention discloses an easy-cleaning ceramic glaze as well as a preparation method and application thereof. The easy-cleaning ceramic glaze consists of the following raw materials in percentage by weight: 33-35% of potash feldspar, 10-12% of kaolin, 13-15% of calcium oxide, 8-10% of magnesium oxide, 6-8% of zinc oxide and 24-26% of quartz. All the raw materials are mixed and crushed to perform wet ball milling so as to obtain a glaze slip, and the glaze slip is subjected to iron removal, screening and aging for later use. According to the easy-cleaning ceramic glaze disclosed by the invention, various metal oxides are added in the formula of an easy-cleaning daily ceramic glaze to improve the easy-cleaning degree of the ceramic glaze and generate a synergistic action, the easy-cleaning degree and the glossiness of the obtained easy-cleaning ceramic glaze are much higher than those of the ceramic glaze in the past, and a glaze surface is smooth and nonstick to greasy dirt, so that the easy-cleaning ceramic glaze not only has significant self-cleaning capability and easy-cleaning property, but also has effective sterilizing, antibacterial, odor-removing and enzyme-preventing effects; and meanwhile, the obtained easy-cleaning ceramic glaze is leadless, green and safe.

The invention provides a formaldehyde removing spray. A negative ion and photocatalyst composite technology is adopted, negative ion and photocatalyst materials are subjected to a series of treatmentincluding ball milling, calcination, ball milling, modification and the like, more photocatalyst powder and negative ion powder are coated with porous tourmaline powder, negative ions can be releasedeffectively for a long time, photocatalytic reactions can be performed for a long time under the condition of sufficient light sources, and the negative ion powder can eliminate free radicals and generate negative ions under the condition of weaker light sources. Therefore, the formaldehyde removing spray can continuously remove formaldehyde in various environments and has very high sterilization,deodorization, self-cleaning and air purifying effects.

The invention discloses a self-cleaning outer wall paint and relates to the technical field of construction material. It is prepared from the following weight-proportioned materials: pure acrylic latex 40-50 parts, nanosilicon dioxide 2-8 parts, flake mica powder 6-10 parts, Nano Calcium carbonate 3-5 parts, polysiloxane 5-8 parts, thickening agent 0.5-1.2 parts, leveling agent 0.5-0.8 parts, organo silicone defoamer 0.1-0.3 parts, coalescing agent 0.8-1.5 parts, water 8-12 parts. The present invention solves the problems of expensive price and poor machine performance existing in self-cleaning paint.

The invention relates to high strength nanometer self-cleaning glass, which comprises laminated glass and a titanium dioxide nano coating which is locally sprayed or coated on the outer surface of one side of the laminated glass, and the laminated glass comprises at least two layers of tempered glass and an ethylene vinyl acetate copolymer (EVA) film layer which is clamped between any adjacent tempered glass. A layer of titanium dioxide nano coating is locally sprayed or coated on the outer surface of one side of the laminated glass, and if the laminated glass is impacted to break, fragments still can be adhered on a film, and are not easy to fall, thereby reducing damage degree. Nano titanium dioxide can play the self-cleaning role under the irradiation of ultraviolet light.

The invention provides a double-toothed roller crusher and a working method thereof. The double-toothed roller crusher improves a roller tooth structure of a toothed roller machine; a roller surface of each toothed roller is provided with 10-20 laps of roller teeth in a direction parallel to the axis; gaps among all laps of roller teeth are equal; each toothed roller is provided with multiple rows of roller teeth in the radial direction; included angles between every two adjacent teeth are equal; the roller teeth of each toothed roller consist of high teeth and low teeth; and one row of high teeth is arranged by every four rows of low teeth. The lower surface of a lower box body is of a through hole structure; 3-4 cleaning holes are respectively formed in the left and right side surfaces of the lower box body; and intake pipes with corresponding numbers are mounted in the cleaning holes. The double-toothed roller crusher improves the roller tooth structure of the toothed roller machine, solves the problem of influence on the crushing efficiency by incapability of effectively crushing one part of materials with regular shapes, can improve the defect of weak cleaning capacity of the toothed roller machine, and is excellent in self-cleaning capacity.

The invention provides a directional reflective ceramic wafer. The ceramic wafer comprises a ceramic wafer body, wherein slopes are arranged on the periphery of the top surface of the ceramic wafer body; uniformly distributed silver-aluminium-plated glass microspheres (which are transparent and have high refractive index) are connected with the slopes of a pair of sides of the top surface of the ceramic wafer body via adhesive layers; and the thickness of the ceramic wafer body is 7.5-12-15mm. The ceramic wafer has the following advantages: the glass microspheres are adhered to the ceramic wafer body through the adhesive layers and cannot fall off easily; the elevation structure of the ceramic wafer can well reflect light in rainy days; reflectors in right angle concave holes still can have good reflecting effects when other reflective layers cannot reflect light; the ceramic wafer is 6mm higher than a road surface and the height is reduced, thus reducing jolt and the destruction ratio; inclined plane on the periphery form slopes, thus preventing the raised ceramic road signs from being shoved during snow shovelling and prolonging the life of the ceramic wafer; drivers can see a light band formed by reflective spots 100-200m away in rainy and foggy nights by virtue of the high-strength silver-aluminium plated glass microspheres and cat eyes; and heat absorbed by a wall surface can be reduced when the directional reflective ceramic wafer is used as external tile.

The invention relates to relates to a flame retardation type exterior coating capable of automatically cleaning, the coating takes epoxy resin slurry and methacrylate as monomer. The exterior coating comprises the following raw materials by weight: 20-40 parts of vinyl epoxy resin slurry, 5-30 parts of n-butyl methacrylate, 0.5-2.5 parts of phosphate tri(2-chloropropyl)ester, 1-10 parts of hydrophobic silica, 0.1-5 parts of titanium dioxide, 0.1-2 parts of levelling agent, 0.1-2 parts of antifoaming agent, 0.5-5 parts of silicon auxiliary agent and 1-5 parts of initiator. When the coating is used, the monomer initiates a polymerization through a radical initiator to form a thermosetting polymer, a contact angle with water is greater than 110 DEG, and a roll angle is less than 65 DEG. The water-repellency grade is grade 4, and the oil-repellency grade is grade 2. The hydrophobicity can reach 96%, the heat conduction coefficient is 0.032W/mK, the combustion grading accords with a grade C, and all the indexes can reach an international relative standard.

The invention discloses a super-hydrophobic flexible full-fabric pressure sensor based on silver nanowires and a preparation method thereof, and is characterized in that the full-fabric flexible pressure sensor is prepared by taking a silk-screen printed silver nanowire interdigital electrode as a bottom electrode, taking a silver nanowire impregnated fabric as a piezoresistive layer, and packaging the piezoresistive layer and the bottom electrode by adopting a VHB adhesive tape. The nanometer silver wire interdigital electrode not only ensures the flexibility and the conductivity of the bottom electrode, but also greatly improves the adhesive ability between the nanometer silver wire and the fabric due to the firm bonding ability between the hydroxymethyl cellulose and the fabric; the super-hydrophobic functional layer is sprayed on the surface of the nano silver wire piezoresistive layer fabric, so that the piezoresistive layer conductive fabric is endowed with good conductivity and self-cleaning capability, the super-hydrophobic functional layer is used as a barrier layer to improve the use stability of the fabric, and nano silver wires are prevented from falling off under the action of mechanical force. Compared with the prior art, the super-hydrophobic flexible full-fabric pressure sensor based on the silver nanowires has the advantages of high sensitivity, short response time, high flexibility, stable electrical performance and super-hydrophobic self-cleaning effect, the preparation process is simple, and industrial production can be realized.

The invention relates to an inorganic ecological wall material, a preparation method thereof and a use method. The inorganic ecological wall material is prepared from, by weight, 10-20 parts of ash calcium powder, 10-20 parts of heavy calcium powder, 10-20 parts of zeolite powder, 10-20 parts of tourmaline, 10-15 parts of white cement, 5-15 parts of talcum powder, 5-10 parts of diatomite, 5-15 parts of barites and 3-5 parts of additives. The properties of negative ions, weak current, adsorption, degradation, bacteria resistance and bacteriostasis and the like of the material are brought into play, the material is achieved by comprehensive effects such as chemical reaction, electrical neutralization and physical absorption, so that indoor air is purified, and living environments are improved.