188 results about "Self-cleaning glass" patented technology

A plasma spray process for structuring self-cleaning glass surfaces and self-cleaning glass surfaces formed according to the process. Molten or heat softened particles of inorganic material are plasma spray deposited onto the surface of a substrate to create a micro-rough surface. If desired, a hydrophobic top coating layer can optionally be applied to the micro-rough surface. The micro-structured surface formed according to the invention is durable and self-cleaning.

The present invention relates to a low temperature treating process of self-cleaning TiO2 nanoglass. By using silica and anatase type nanosol as basic components and through pulling process, film is formed on the surface of glass plate. The film is dried at room temperature and cured or treated at temperature below 300 deg.c and cooled naturally. The prepared self-cleaned glass has excellent photocatalytic property, superhydrophilic property, high and homogeneous transparency. The said process is simple, low in cost and suitable for industrial production.

The invention belongs to functional material technology and glass processing field, concretely discloses a permanent self-cleaning glass with visible light response and method for making it. Firstly, sputtering silica dioxide film on the surface of glass, sputtering a layer of titanium oxide film with anion and cation codoping on the surface of silica dioxide film, annealing the glass with twin layer films at 500-600 DEG C, cooling by radiation in sintering stove, to get the product. The self-cleaning glass has good photocatalysis property and photo-induced hydrophilicity, stable performance, almost perpetual availability, high light transmittance ratio and transparency. It is widly used in glass curtain wall of skyscrapers, automobile glass, road lamp shade, kitchen galss and antifog glass, avoiding artificial cleaning indoor and outdoor glass of skyscrapers, saving manual power and material, reducing corrosion destruction of cleaning agent to glass and building machinery, embodying environment protection notion.

The method for preparing high-activity titanium dioxide film self-cleaning glass material, applicable to the fields of building glass, car glass and optical glass, uses general glass as base body forcoating film and includes the following steps: cleaning glass surface, drying, sweeping with nitrogen gas, sol preparation, impregnating and coating, drying, crystallization heat treatment, pickling and surface after-treatment. The sodium ion content of titanium dioxide film can be controlled in 0.3%, carbon content of film surface is reduced, surface hydroxy content is increased and the optical catalytic activity of glass can be greatly raised. Said invention adopts line production process, and can effectively control product quality.

The invention belongs to the technical field of functional materials, particularly relating to the offline and online production technology for normal temperature and pressure nano self-cleaning glass, especially to a manufacturing method for normal temperature self-cleaning tempered glass. The invention will first enables the nano-coating with visible light activity to be pre-crystalled, and coat the pre-crystalled coating on the surface of the glass, then form crystal rapidly under the condition of 700 DEG C transient high temperature treatment required in the tempered glass preparation process, so as to achieve tempering and simultaneously realize super-hydrophilicity and photocatalytic activity on the glass surface. The nano-self-cleaning coating on the glass surface is more strengthened through transient high temperature, so as to improve the service life of the self-cleaning coating.

The invention discloses a method for preparing porous nano TiO2. The method includes steps: according to the weight ratio of titanic acid ester, sublimable compound template, organic solvent, acid and deionized water, (0.001%-80%):(0.00001%-50%):(0.001%-95%):(0.001%-90%):(0.001%-95%), mixing the titanic acid ester, the sublimable compound, the organic solvent and the acid till completely dissolved, adding the deionized water, scattering with ultrasonic for 0.1-20 hours, reacting under stirring at 25-85 DEG C for 0.1-50 hours, ageing for 1-48 hours at room temperature to obtain TiO2 sol containing the sublimate template, removing solvent by means of reduced pressure distillation, drying at 60-130 DEG C, roasting at 150-240 DEG C for 0.1-20 hours, roasting at 250-340 DEG C for 0.1-20 hours, roasting at 350-440 DEG C for 0.1-20 hours, roasting at 450 DEG C for 0.1-20 hours, cooling naturally and grinding to obtain porous nano TiO2 solid powder. The porous nano TiO2 solid powder can be applied to photocatalytic hydrogen production by water decomposition, photocatalytic organic pollutant degradation, ultrasonic absorbing materials, textiles, self-cleaning glass, sunscreen cream, paint, printing ink, food packaging materials, paper industry, space industry and lithium batteries and has wide application prospect. The method is simple and feasible in process, low in investment and beneficial to popularization and application.

The method for raising optical catalytic activity of titanium dioxide film self-cleaning glass is applicable to the fields of building window, car glass and optical glass, uses glass as base body forcoating film and includes the following steps: using sol-gel method to prepare titanium dioxide film, impregnating glass surface and coating film, acid treating surface of titanium dioxide film, washing with water and drying, the sodium ion of titanium dioxide film surface can be controlled in 0.3%, carbon content of film surface is reduced, hydroxy content of surface is increased, so that the optical catalytic activity of the glass can be greatly raised. It features signal method, effective and easy-to-control glass quality.

The invention relates to a method for manufacturing self-cleaning photocatalysis antibacterial glass plated with a titanium dioxide photocatalysis layer and antibacterial metal ions. The method comprises the following steps: using a sol-gel method to prepare a photocatalysis film; performing cleaning pretreatment to the surface of glass; preparing titanium dioxide sol through titanium alkoxide hydrolysis; dispersing antibacterial nanometer metal ions in the titanium dioxide sol; adopting a dipping-pulling method to plate the glass; drying and then sintering the plated glass at a high temperature; and plating the glass for thickening. The method is characterized by simple process, no toxicity, quality control easiness, strong photocatalytic activity, high hardness, durability and the like.

The invention relates to a preparation method of a self-cleaning coating and a self-cleaning glass. The preparation method includes: firstly preparing a SiO2 sol; then mixing the SiO2 sol with polyethylene glycol, ammonium perchlorate and n-butanol evenly to obtain the self-cleaning coating; and spraying the self-cleaning coating on the surface of a clean glass, then carrying out curing treatment, or performing toughening treatment according to a toughened glass process, thus obtaining the self-cleaning curtain wall glass. The self-cleaning film layer formed in the invention is a porous SiO2 structure, is firmly combined with a glass substrate and has excellent weather resistance. The prepared self-cleaning glass surface has a superhydrophilic effect, so that surface dirt can be effectively removed. With good weather resistance, the self-cleaning glass can be used in the curtain wall glass filed.

The invention discloses anti-reflection and self-cleaning glass and a manufacturing method of the glass. A nanocone array structure with sub-wavelength is formed on an impressing material on the glass surface by a nanometer impressing process based on a band soft mould or a nanocone array structure with sub-wavelength is etched on the glass surface by a hard mask, a nanometer impressing with an impressing material based on a band soft mould and a hard mask transferring etching process. The anti-reflection and self-cleaning glass can be applied to the fields of solar battery panels, glass curtain walls, automobile windshields, optical elements and instruments, large-size high-definition panel displays, infrared detectors and the like. The anti-reflection and self-cleaning glass disclosed by the invention has the advantages of high anti-reflection and self-cleaning performance, good durability, high stability, strong severe environment adaptation and low cost, and in particular, the efficient and low-cost mass production of the anti-reflection and self-cleaning glass with extra-large area can be realized.

The invention provides a self-cleaning glass. The self-cleaning glass comprises a glass base, a nano sliver layer and a titanium dioxide layer in turn, wherein the nano sliver layer is distributed between the glass base and the titanium dioxide layer; and the titanium dioxide layer is a photo-catalyst layer. The invention also provides a preparation method for the self-cleaning glass. Because the nano sliver layer is distributed on the glass and the titanium dioxide layer is distributed on the nano sliver layer, the self-cleaning glass can effectively improve the utilization rate of sunlight and improve the photo-catalysis efficiency of a TiO2 film so that the photo-catalysis efficiency of the self-cleaning glass is improved. In the preparation method for the self-cleaning glass, the nano sliver layer with strong bonding force with glass is formed on the surface of the glass by adopting a magnetron sputtering method, and the titanium dioxide layer which is not easy to fall from the glass is formed on the nano sliver layer by a sol-gel method, so the service life of the glass is long; and meanwhile, the preparation method has simple process and the reaction condition is easy to control.

Production of self-cleaning glass is carried out by cleaning glass substrate, drying, pouring the prepared TiO2 sol into atomizer, spraying glass substrate surface with TiO2 composite sol at 1.0-2.5m/min, drying at 60-150 degrees C, and aging at 300 degrees C to obtain self-cleaning glass with TiO2 self-cleaning membrane. It has better super-hydrophilic property and self-cleaning ability.

The invention discloses a silicon fluoride self-cleaning glass nano-material, which is composed of solvent and active ingredients; the active ingredients are fluorinated modified silicone nano-particles, and the reaction raw materials comprise ortho-silicon ester and fluorine modified alkyl silane, with the ratio volume and dosage reaching 1.5-3:0.15-1.8. The invention also discloses a manufacturing method for the silicon fluoride self-cleaning glass nano-material, comprising two steps: synthesizing the surface modification of silica nano-particles, silica nano-particles; the ratio between volume and dosage for each added reactant is as follows: solvent: water: ortho-silicon ester: fluorine modified alkyl silane equals to 100: 1.5-3: 1.5-3: 0.15-1.8. The invention has simple production process, stable product performance, higher storage stability, excellent chemical properties, low surface energy and good tolerance against pollution, which is used for glass surface treatment; the contact angle between water and coating is greater than 110 degrees.

The invention provides a novel preparation method of nanometer self-cleaning glass with low refractive index. The preparation method comprises the following steps: 1) uniformly spraying a nanometer self-cleaning paint onto the surface of glass; 2) drying the self-cleaning glass obtained from the step 1) under the normal temperature or heating condition so as to obtain self-cleaning glass with a nanometer self-cleaning film; and 3) spraying a solvent A onto the surface of the self-cleaning glass obtained from the step 2), standing, removing the nano-pore-forming agent-dissolved solvent A, and drying to form a nanometer concave-convex structure on the film. The self-cleaning glass prepared by the method has raised self-cleaning ability and high light transmittance, also has enhanced super-hydrophilic property and antifogging property, and has wider applicability.

The invention relates to a method of nano self-cleaning glass production in the float glass production line. At the end of annealing kiln and above the area between the emergency transverse cutting machines in the float glass production line, the method need add the on-line spray equipment for spraying the nano self-cleaning paint across the float glass production line; evenly and directly spray the nano self-cleaning paint in fine mist on the non-tin surface of the glass at temperature 60-120 DEG C obtained at the end of the annealing kiln to form the nano self-cleaning coating; and then continue to follow the cold end manufacturing process of the float glass line to perform the on-line production to eventually obtain the nano self-cleaning glass. The method of invention saves the glass cleaning process before painting the nano self-cleaning paint during the traditional self-cleaning glass manufacturing. It uses the on-line clean glass obtained at end of the annealing kiln, directly sprays the nano self-cleaning paint on the non-tin glass surface to form the film; and saves the glass cleaning process as well as the resources.

This invention provides a method for mass production of fog-proof and self-cleaning glass. The method comprises: coating TiO2 and SiO2 onto a cleaned glass substrate by DC reactive magnetron sputtering technology and radiofrequency magnetron sputtering technology using pure titanium target and pure silicon dioxide (quartz) target respectively, thus obtaining TiO2/SiO2 double-layer fog-proof and self-cleaning glass or SiO2/TiO2/SiO2 triple-layer fog-proof and self-cleaning glass. The obtained product has better hydrophilicity, lower initial wetting angle, and longer maintaining time after stopping UV radiation than those of TiO2 single-layer glass, and overcomes the shortcoming of strong dependence on environment of present fog-proof and self-cleaning glasses.

The invention discloses a preparation method of super-hydrophilic self-cleaning glass and belongs to the technical field of film coating on glass. The provided preparation method adopts a liquid phase deposition method to deposit a photoinduced super-hydrophilic TiO2 membrane on glass surface, and uses metatitanic acid, silicon dioxide, hydrofluoric acid, ammonia, boracic acid and the like as the raw materials to prepare solution, wherein the concentration of titanium ion is 0.01-0.5M, the mol ratio of silicon and titanium is 0-1, the mol ratio of boron and titanium is 2-6, the pH value of the solution is 1.0-4.0; and a washed glass substrate is soaked in the solution vertically at the solution temperature of 20-80 DEG C, then taken out and washed after 1-20h of deposition, and air-dried at the temperature of 80-200 DEG C, thus obtaining the photoinduced super-hydrophilic TiO2 coated glass. The preparation method has the advantages of simple equipment, convenient operation, easily available raw materials, low cost, and the like.

The invention relates to the field of self-cleaning glass, and discloses a super-hydrophilic self-cleaning coating material composition and a preparation method thereof, and a super-hydrophilic self-cleaning glass and a preparation method thereof. The super-hydrophilic self-cleaning coating material composition comprises a modified nanometer silica sol, an anatase type nanometer titanium dioxide sol and water, and based on the total amount of the solid-state sol, the mole fraction of the modified nanometer silica sol is 40-70%, and the mole fraction of the anatase type nanometer titanium dioxide sol is 30-60%. The structure of the super-hydrophilic self-cleaning glass sequentially comprises a coating formed by the super-hydrophilic self-cleaning coating material composition, and a glass plate from top to bottom. The present invention further provides a super-hydrophilic self-cleaning coating material composition and a preparation method thereof, and a super-hydrophilic self-cleaning glass and a preparation method thereof. According to the present invention, the super-hydrophilic self-cleaning coating material composition has characteristics of excellent super-hydrophilic property,excellent photocatalytic degradation property, reflection reducing, weathering resistance and good self-cleaning performance, the coating process is simple to construct and operate, and the large-areaconstruction application in multiple fields can be achieved.

The invention discloses a self-air-supply ash-filtering cooling silencing closable fireproof tall building with a solar warming water heater. An air supply system consists of a blind window with self-cleaned glass, a spraying water pipe, an air inlet main pipe which extends to an underground garage and then is sealed at a roof, air inlet branch pipes and valve covers which extend to each room, a stainless wind energy fan which extends from the underground garage to a place which is 6 m higher than the roof or a pipe orifice with a rain shade, an air exhaust main pipe of which the lower end is sealed, and air exhaust branch pipes and the valve covers which extend to each room. A heat preservation system consists of an internal door, windows, rolling gates which are arranged outside the windows, anti-theft fences, a heat preservation layer which is arranged on the external wall, an air relative isolation layer which is arranged outside the heat preservation layer, and a ceramic partition wall which is arranged outside the air relative isolation layer. Preferably, the solar warming water heater which is arranged on a shelf is connected with an indoor electric water heater and metal pipes under the floor to form a heat collection system. The invention has the advantages that: a livable environment which is dustless, quiet, warm in winter, cool in summer and fresh in air is created; and when a fire alarm is given, the doors, the windows, air inlet pipelines and air outlet pipelines are closed to eliminate a chimney effect, and with no need of escaping, people can wear gas masks, carry oxygen bottles and hold fire extinguishers to effectively extinguish fire.

The present invention discloses one kind of sunlight controlled self-cleaning glass and its making process. The sunlight controlled self-cleaning glass includes three layers, the first layer of glass plate, the second layer of sunlight controlled layer and the third layer of the outmost self-cleaning layer. The first layer is Si-Na-Ca glass; the second layer consists of at least one of the oxide of Fe, Cr, Cu, Co, Ti, Mn, Ni, V, Al, Mg, Sn and Ca; and the third layer consists of TiO2 with or without dopant. The sunlight controlled self-cleaning glass has both sunlight control and self-cleaning functions, and is made through on-line high temperature pyrolysis spraying process.

The invention provides a novel nanometer self-cleaning paint and nanometer self-cleaning glass containing coating formed by the paint. The paint comprises the following components: (a) silicon dioxide nanoparticles, (b) polysiloxane, (c) anatase type titanium dioxide, (d) a nanometer pore-foaming agent and (e) a solvent B. The self-cleaning glass has improved self-cleaning capacity and high light transmittance and also has enhanced super-hydrophilic property and antifogging property and wide applicability.

A self-cleaning glass and its production are disclosed. The glass consists of glass raw sheet and light catalyst coating set on surface of glass raw sheet, which comprises anatase nano-titanium dioxide, isopropyl alcohol, sodium dodecyl benzene sulfonate, silicon sol, alcohol and water. The process is carried out by concentrating for glass raw sheet, cutting, polishing, edging, surface washing by acid, washing by pure water, baking and drying at high temperature and tempering treating. It's smooth and transparent, has excellent light catalytic and sterilizing functions, strong oxidative performance, and higher degradation rate.

The process of testing the photocatalytic activity of self-cleaning glass with titania film includes the following steps: preparing glass sample; connecting photocatalytic reactor with opto-acoustic-infrared gas monitoring instrument, setting near ultraviolet lamp and mini fan inside the photocatalytic reactor, and connecting drier with the photocatalytic reactor and mini vacuum pump; setting the sample inside the photocatalytic reactor and injecting the simulating pollutant into the photocatalytic reactor; homogenizing the components inside the photocatalytic reactor, controlling the initial concentration of pollutant and vapor and test temperature; regulating light strength and the concentration of the degraded medium and degraded product; continuous on-line monitoring with the opto-acoustic-infrared gas monitoring instrument and outputting test result; and calculating degradation rate. The present invention has easy operation and convenient detection.

The invention discloses self-cleaning glass which has high visible light transmittance and high infrared ray reflectivity. The self-cleaning glass is provided with a cladding layer prepared by a magnetron sputtering processes on one side, and the cladding layer structurally comprises a medium layer 1, a medium layer 2, a medium layer 3 and a glass substrate layer, wherein the medium layer 1 adopts a rare earth element-containing titanium oxide layer with the thickness of 15-200nm, the medium layer 2 adopts a titanium oxide/silicon oxide blend layer with the thickness of 10-150nm, and the medium layer 3 adopts a metal oxide or metal fluoride layer with the thickness of 5-350nm. By the magnetron sputtering processes, the whole production process of the self-cleaning glass is safe, environment-friendly and free of pollution to the environment; by adopting a structural design of a glass film layer, the surface water contact angle is less than 2 degrees, and in a visible light waveband, the light transmittance is 2% higher and the visible light reflectivity is 5% lower than those of cladding-layer-free glass with the same specification respectively; the self-cleaning glass has the infrared reflectivity of 70%; through a design of a film system of the cladding layer, the self-cleaning glass provided by the invention overcomes contradictions of the conventional titanium-oxide-coating self-cleaning glass in aspects of high light transmittance and low radiation, and can be widely used as a high-end building material and photovoltaic glass.