38 results about "Organic stain" patented technology

The invention discloses a nano-composite environment-friendly water permeable brick and a production method thereof. The nano-composite environment-friendly water permeable brick comprises a concrete bottom layer and a mortar surface layer arranged on the concrete bottom layer, wherein the concrete bottom layer and the mortar surface layer are compounded to form an integrated structure; the concrete bottom layer is prepared from the following raw materials in parts by weight: 20-40 parts of cement, 10-20 parts of water, 5-15 parts of fly ash, 50-65 parts of recycled aggregate, 50-65 parts of natural coarse aggregate, 65-85 parts of sand and 0.05-0.2 part of water-reducing agent; and the mortar surface layer is prepared from the following raw materials in parts by weight: 70-100 parts of cement, 5-20 parts of nano-TiO2, 30-60 parts of water, 200-400 parts of sand and 0.1-1.0 part of water-reducing agent. The nano-composite environment-friendly water permeable brick disclosed by the invention is integrally formed and has the advantages of high compressive strength, high flexural strength, good water permeability and good water retention, and a ground surface laid by the nano-composite environment-friendly water permeable bricks can timely dredge and drain rainwater, is conductive to growth of surrounding vegetation and can effectively supplement groundwater, reduce the pressure of a municipal drainage system and reduce the influence of surface gathered water on the traffic; and the nano-composite environment-friendly water permeable brick has a photocatalytic self-cleaning function and can decompose and remove organic stains on the surface of the brick and beautify the urban environment.

A multi-functional (meth)acrylate compound containing at least three F atoms and at least three Si atoms per molecule is provided. A photocurable resin composition comprising the compound can endow support substrates with antifouling properties with respect to organic stains such as oil mist and fingerprints, without detracting from surface mar resistance.

Bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.

The present invention provides a low-cost artificial fingerprint liquid for quantitatively and with a good reproducibility evaluating an anti-staining property, and a fingerprint adhering property or a fingerprint removing property on the surface of an optical disk such as a reproduction-only optical disk, optical recording disk, magneto-optical recording disk, various displays such as a CRT, and various substances such as glass. An artificial fingerprint liquid comprising a fine-particle-form substance and a dispersion medium capable of dispersing the fine-particle-form substance. The dispersion medium preferably has a surface tension ranging from 20 to 50 mN / m at 25° C., and preferably is selected from at least one of higher fatty acid, derivative of higher fatty acid, terpens, and derivatives of terpens. The fine-particle-form substance is at least one selected from inorganic fine particles and organic fine particles. The present invention provides a testing method for an optical information medium using the artificial fingerprint. The present invention provides an optical information medium which is good in the property of wiping off an organic stain, such as a fingerprint, adhering to a surface of the optical recording medium and which can maintain good recording / reproducing property over a long period.

Temporary active coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.

A cleaning composition that can discharge the color of blood, menstrual fluids, or other organic stains is provided. In particular, the present invention achieves a balance between control of unwanted liquid spreading by lateral wicking on a stained textile fabric to lessen the size of wet spots and maintaining the cleaning efficacy of the composition by means of specific kinds of thickening agents. The composition includes an oxidizing agent such as peroxides, a cell-lysing agent, a chelating agent, an antioxidant, a thickener, and other optional ingredients that are selectively employed to achieve an aqueous based composition that exhibits good shelf stability and stain removal properties. The thickening agent may include a cellulosic or clay material, starch, gum, fatty acid, fatty alcohol, hydrophilic colloidal particles, polyoxyethylene glycol or polyoxyethylene glycol derivatives including fatty acid esters and ethers, or a combination thereof.

A concrete slab construction is provided for use in both horizontal and vertical structures. The slab construction includes two layers. The first layer of concrete is a base layer comprised of traditional concrete materials. In addition, the concrete slab construction includes a second exterior layer of concrete which contains photocatalyst particles. Preferred photocatalytic materials include titanium dioxide in the anatase form. The concrete slab construction provides for reduction of green house gases and reduction in organic stains.

Bioactive coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.

The invention discloses a method for preparing photocatalytic fluorine-free superhydrophobic self-cleaning textiles. At room temperature, hydrophobic silicon dioxide particles are dispersed in solvent A and ultrasonically treated to obtain a silicon dioxide dispersion; Add titanium tetrachloride to the mixture; then raise the temperature of the dispersion to 60°C and stir evenly, then transfer it to a closed polytetrafluoroethylene container for hydrothermal treatment, obtain silica / titanium dioxide composite particles after centrifugation, wash and dry to obtain Photocatalytic superhydrophobic composite powder; disperse the composite powder in solvent B and ultrasonically treat it to obtain a photocatalytic superhydrophobic composite powder dispersion, then impregnate clean textiles in the composite powder dispersion, pad and dry A photocatalytic fluorine-free superhydrophobic self-cleaning textile was obtained. The preparation method can avoid the potential threat of the fluorine-containing water and oil repellent finishing agent to environmental safety and human health, and can effectively degrade the organic stains attached to the surface of the fabric, endowing the textile with long-term self-cleaning performance.

The invention discloses a silicon chip cleaning agent, which is prepared by mainly mixing ethanol and hydrofluoric acid, wherein the volume ratio of the ethanol to the hydrofluoric acid is 35-45:1; the mass percentage concentration of the ethanol is 18 to 100 percent; and the hydrofluoric acid is prepared from the fluorine hydride and deionized water and is at a mass percentage concentration of 48 to 50 percent. The invention also discloses a method for cleaning a silicon chip, which comprises the following steps: washing the silicon chip with deionized water; and washing the silicon chip with the silicon chip cleaning agent. The silicon cleaning agent and the method for cleaning the silicon chip can effectively remove organic stains and improve the back cleaning effect of a hydrofluoric acid cleaning agent.

The invention relates to a reactive oxygen species (ROS) generator (32), a washing device (30) and a washing method using such a ROS generator. The reactive oxygen species (ROS) generated by such a generator provide excellent washing power, and degrade organic stains rapidly to environmentally acceptable products. The generator according to the invention consumes less energy for a. comparable washing effect as compared to conventional washing machines.

The invention discloses a solar cell silicon wafer cleaning agent and a solar cell silicon wafer cleaning method, wherein the solar cell silicon wafer cleaning agent comprises the components in percentage by weight: 0.02-1.0% of a surfactant, 0.1-0.8% of a chelating agent, 0.02-1.0% of compound enzyme, 0.03-2.0% of salt and the balance being water. The solar cell silicon wafer cleaning agent has the characteristics of no volatilization, no pungent smell, strong cleaning effect, no fluorine and environmental protection, and can effectively remove inorganic particles and organic stains adsorbed on the surface of a silicon wafer; meanwhile, the solar cell silicon wafer cleaning method can enable the cleaned silicon wafer to obtain a high-quality textured surface with good uniformity, high nucleation density and low reflectivity in the subsequent texturing process.

The invention discloses an oxidated stain-removing and antifogging glass cleaner. The oxidated stain-removing and antifogging glass cleaner is characterized by being prepared from the following raw materials in parts by weight: 8-12 parts of alkanolamide, 2-4 parts of disodium edetate, 1-2 parts of oxidation mixture, 6-8 parts of propanetriol, 6-8 parts of acetone, 0.8-1.2 parts of sodium dodecylbenzene sulfonate, 2-5 parts of sodium bicarbonate, 2-4 parts of lauric diethanolamide, 0.5-0.7 part of sodium tripolyphosphate, 0.6-0.8 part of auxiliaries and 0.3-0.5 part of flavoring essence. According to the oxidated stain-removing and antifogging glass cleaner, the stain removal effect is excellent; by adding the oxidation mixture, the cleaner can play a role in oxidating reductive dirt so as to deeply treat the dirt and organic stains; by adding the auxiliaries, the product can have sterilizing and virus-killing effects during use, has good compatibility with surfaces of glass products, is good in eluting effect and short in washing time and meanwhile is pollution-free to environments, a good antifogging effect is achieved, and the use is safe and reliable; and all the raw materials are relatively low in production cost, so that the application prospect is broad.

The invention discloses a preparing method for self-cleaning flocking yarn. The flocking yarn is pretreated through plasma, surface fibers are activated, and through a low-temperature magnetron sputtering method, a layer of even nanometer TiO2 film is modified on the surface of the flocking yarn. The flocking yarn obtained with the treating method can efficiently degrade organic stains on the surface of the flocking yarn, the flocking yarn is endowed with a long-acting self-cleaning function, and the treating method is easy to operate, free of secondary pollution, environmentally friendly andsuitable for industrial production.

The invention relates to a reactive oxygen species (ROS) generator (32), a washing device (30) and a washing method using such a ROS generator. The reactive oxygen species (ROS) generated by such a generator provide excellent washing power, and degrade organic stains rapidly to environmentally acceptable products. The generator according to the invention consumes less energy for a. comparable washing effect as compared to conventional washing machines.

The invention discloses a waste filter bag cleaning and recycling device and method, and belongs to the technical field of material recovery. According to the method, a waste polytetrafluoroethylene microporous membrane filter bag is subjected to processes of pre-cleaning, surface active agent cleaning, acid pickling, classification, heating quenching and mechanical crushing, the waste filter bagis cleaned, the problem of incomplete cleaning of the waste filter bags in the prior art is solved, when a surface active agent is used for cleaning, the the cleaning device conveys the waste filter bags through a conveying belt to sequentially pass through a feeding area, a cleaning area, a spraying area, a drying area and a discharging area, the device uses high pressure to remove dust and organic stains on the surfaces of the waste filter bags through the arranged water supply dry pipes, water supply branch pipes and nozzles in the cleaning area and the spraying area, and the waste filter bags are dried in the drying area through hot air and repeatedly cleaned for several times, so that dust and organic matters on the surfaces of the filter bags can be completely removed. According to the device and the method, the waste filter bags are thorough in cleaning, so that the polytetrafluoroethylene particles are high in recovery purity.

A multi-functional (meth)acrylate compound containing at least three F atoms and at least three Si atoms per molecule is provided. A photocurable resin composition comprising the compound can endow support substrates with antifouling properties with respect to organic stains such as oil mist and fingerprints, without detracting from surface mar resistance.

The invention relates to a treatment method of a copper foil used for graphene film growth and a copper foil prepared by adopting the same. The treatment method comprises the following steps: (1) carrying out plasma cleaning on a copper foil blank to remove dirt and then carrying out plasma oxide layer removal treatment on the copper foil blank to remove a surface oxide layer of the copper foil blank, wherein hydrogen is utilized as a plasma treatment gas; (2) carrying out electrochemical polishing on the copper foil blank from which the oxide layer is removed; (3) repeating the step (1) to remove the surface oxide layer of the polished copper foil blank, thus obtaining the copper foil used for graphene film growth. A two-step method is adopted in the plasma treatment process, oxygen is pumped in to eliminate organic stains in the first step, hydrogen or other reducing gases are pumped in to remove the oxide layer in the second step, the two processes belong to chemical reaction which is more efficient than physical reaction in which argon is pumped in and is more thorough in treatment, and yellowing of the copper foil can be effectively avoided to improve the integrity and uniformity of late graphene film generation.

The invention discloses a floor cleaning agent with functions of degerming, disinfection, lustering and maintenance. The floor cleaning agent is prepared from the following components in parts by weight: 10-15 parts of ethanol, 5-7 parts of natural surfactant, 3-5 parts of amphoteric surfactant, 4-8 parts of bioenzyme, 4-7 parts of pomelo peel extract, 1-3 parts of sodium citrate, 5-8 parts of sodium carbonate, 2-3 parts of carnauba wax, 2-3 parts of brightening agent, 1-3 parts of antibacterial agent and 10-15 parts of water. The floor cleaning agent has favorable cleaning effects on various stains on the floor, such as inorganic stains, organic stains and blood stains. The floor cleaning agent can remove abundant bacteria on the floor surface and keep the hygienic environment good in the room. The floor cleaning agent has favorable lustering and maintenance properties. The raw materials of the cleaning agent adopt pollution-free clean products, such as the pomelo peel extract, natural surfactant and bioenzyme, and thus, the cleaning agent is environment-friendly and biodegradable. The pomelo peel extract can improve the indoor air environment, and has favorable antibacterial properties. The raw materials are not corrosive, and thus, can not damage the paint coating on the floor surface, thereby prolonging the service life of the floor.

The invention discloses a method for removing photoresist. The method comprises a plasma photoresist removing step, wherein the plasma photoresist removing step specifically comprises: exciting mixed gas of O2 and SF6 into plasma, and removing charged particles in the plasma, wherein the volume ratio of the SF6 in the mixed gas is less than 20%; and carrying out a reaction on the generated electrically neutral particles and a photoresist to remove the photoresist. According to the invention, less than 20% of SF6 is adopted as an auxiliary gas in a plasma photoresist removing process, and charged particles in the generated plasma are removed, so that the generated neutral particles do not cause charge damage to a semiconductor, organic stains on photoresist and a wafer can be quickly and effectively removed, and the removal efficiency of the photoresist is far higher than that of the conventional combination of oxygen and carbon fluoride auxiliary gas.

The present invention provides a low-cost artificial fingerprint liquid for quantitatively and with a good reproducibility evaluating an anti-staining property, and a fingerprint adhering property or a fingerprint removing property on the surface of an optical disk such as a reproduction-only optical disk, optical recording disk, magneto-optical recording disk, various displays such as a CRT, and various substances such as glass. An artificial fingerprint liquid comprising a fine-particle-form substance and a dispersion medium capable of dispersing the fine-particle-form substance. The dispersion medium preferably has a surface tension ranging from 20 to 50 mN / m at 25° C., and preferably is selected from at least one of higher fatty acid, derivative of higher fatty acid, terpens, and derivatives of terpens. The fine-particle-form substance is at least one selected from inorganic fine particles and organic fine particles. The present invention provides a testing method for an optical information medium using the artificial fingerprint. The present invention provides an optical information medium which is good in the property of wiping off an organic stain, such as a fingerprint, adhering to a surface of the optical recording medium and which can maintain good recording / reproducing property over a long period.

The invention belongs to the technical field of firefighter garments, and particularly relates to a three-layer structure firefighter uniform with a self-cleaning function and a production method thereof, and the three-layer structure firefighter uniform comprises an outer layer fabric, a middle layer fabric and an inner layer fabric; the middle-layer fabric is positioned between the outer-layer fabric and the inner-layer fabric; the outer-layer fabric is mainly made of a flame-retardant fabric woven by polyimide fibers, namely Yillun 95, and the outer layer of the flame-retardant fabric is coated with a mixed solution of a fluorinated polysiloxane hydrophobic adhesive and TiO2 nanoparticles; the middle-layer fabric is mainly made of a flame-retardant silica gel point composite fabric structure consisting of flame-retardant silica gel points, polyester spunlace base cloth and a PTFE (Polytetrafluoroethylene) film; a super-hydrophobic interface is formed through water-repellent finishing of a fire-fighting protective layer, dust stains are removed from the surface according to the lotus effect theory, organic stains are chemically decomposed into carbon dioxide, water and other small molecules through the photocatalysis technology, and then the self-cleaning effect of the stains on the surface of the fire-fighting clothes is achieved.

The invention discloses a solar cell silicon chip cleaning agent and a solar cell silicon chip cleaning method. According to weight percentage, the solar cell silicon chip cleaning agent consists of 0.02-1.0% surfactant, 0.1-0.8% chelating agent, Composed of 0.02‑1.0% complex enzyme, 0.03‑2.0% salt and the rest water. The silicon wafer cleaning agent for solar cells has the characteristics of no volatilization, no irritating smell, strong cleaning effect, and fluorine-free environmental protection, and can effectively remove inorganic particles and organic stains adsorbed on the surface of silicon wafers. The cleaned silicon wafer obtains a high-quality textured surface with good uniformity, high nucleation density and low reflectivity in the subsequent texturing process.

The present invention relates to a specific cleaning composition comprising a mixture of enzymes, said mixture of enzymes comprising a dispersed protein and a specific amylase or mannanase. The invention further relates to the use of said composition in a cleaning process and / or for cleaning an article, such as a textile, and to a method for removing or reducing organic stains using said composition.

The invention relates to a preparation method of a graphene film. The preparation method comprises the following steps: treating a copper foil blank and then growing the graphene film on a copper foil, wherein the step of treating the copper foil blank comprises the following sub-steps: (1) carrying out plasma cleaning on the copper foil blank to remove dirt and then carrying out plasma oxide layer removal treatment on the copper foil blank to remove a surface oxide layer of the copper foil blank, wherein hydrogen is utilized as a plasma; (2) carrying out electrochemical polishing on the copper foil blank from which the oxide layer is removed; (3) repeating the step (1) to remove the surface oxide layer of the polished copper foil blank, thus obtaining the copper foil used for graphene film growth. A two-step method is adopted in the plasma treatment process, oxygen is pumped in to eliminate organic stains in the first step, hydrogen or other reducing gases are pumped in to remove the oxide layer in the second step, the two processes belong to chemical reaction which is more efficient than physical reaction in which argon is pumped in and is more thorough in treatment, and yellowing of the copper foil can be effectively avoided to improve the integrity and uniformity of late graphene film generation.

The invention discloses a self-cleaning polyethylene material. The material is prepared from the following components in parts by weight: 30-50 parts of high-density polyethylene, 30-50 parts of silicone rubber, 5-10 parts of benzoxazine, 5 parts of nano-titanium dioxide, 3 parts of a dispersant, and 0.5 part of a heat stabilizer. According to the self-cleaning polyethylene material provided by the invention, two thermosetting materials including the silicone rubber and the benzoxazine that can effectively improve the surface properties of the material are introduced into the polyethylene substrate material through a dynamic vulcanization technology, so that the thermoplastic elastomer material with ultra-low surface energy is prepared; compared with a traditional coating material, the thermoplastic elastomer material provided by the invention has a simpler production process, strong operability, and a wider application range; and the nano-titanium dioxide filler is added into the system, so that the mechanical properties of the material are improved, and the material has stronger catalytic decomposition ability under visible light catalytic conditions, and can purify organic stains attached to the surface of the material.

Temporary active coatings that are stabilized against inactivation by weathering are provided including a base associated with a chemically modified enzyme, and, optionally a first polyoxyethylene present in the base and independent of the enzyme. The coatings are optionally overlayered onto a substrate to form an active coating facilitating the removal of organic stains or organic material from food, insects, or the environment.

The invention discloses a polyurethane cleaning agent for pretreatment. The polyurethane cleaning agent is a spraying agent and is composed of composite hydrolase (0.01 to 5%) and auxiliary materials; wherein the composite hydrolase is one or more of protease, lipase, amylase and oxidation-reduction enzyme. The cleaning agent is characterized in that composite biological hydrolase active molecules are added, after direct spraying, hydrolase can stably adhere on the surface of polyurethane through biological affinity interaction, physical absorption and chemical bonding; and thus the polyurethane coating can clean biology base organic stains easily. The pretreatment cleaning agent is sprayed on the polyurethane surface; when organic or biological stains are combined to the coating surface, part of organic or biological stains that contact with the coating can be degraded immediately; thus the bonding force between whole stain particles and the coating is weakened, the cleaning efficiency is improved, the using amount of chemical detergent is reduced, the safety is improved, and the water is saved.

The invention discloses a self-cleaning rope and a manufacturing method thereof, relating to the field of ropes, comprising a rope substrate 1 and a self-cleaning coating 2 coated on the outside of the rope substrate 1 . The self-cleaning rope and its manufacturing method provided by the present invention utilize titanium dioxide as an N-type semiconductor with photocatalytic properties, and can decompose organic stains well under light conditions. The titanium dioxide produced by the sol-gel method- Silica hydrogel is used to coat and treat the rope matrix, and the obtained rope has a good self-cleaning effect, avoids damage to the rope caused by frequent washing, and prolongs the service life of the rope. The production process is simple, the operation is convenient and fast, and the cost is low. , suitable for large-scale application.