1013results about How to "Good antifouling" patented technology

The invention discloses a nontoxic antifouling paint for an oceanographic ship and facilities and a method for preparing the paint. The paint consists of the following components in percentage by weight: 15 to 55 percent of base material, 0.01 to 10 percent of antifouling agent, 10 to 30 percent of filler, 0.3 to 25 percent of pigment, 2 to 8 percent of auxiliary agent and 3 to 55 percent of solvent, wherein the antifouling agent is silver grains with average grain diameter of between 1 and 200nm. The paint does not contain toxic agents, such as dichloro-diphenyl-trichloroethane, organic tin,cuprous oxide and the like, at all while effectively suppressing corrosion of marine biological attachments, meets the related regulations of international maritime organization and future development trend of the antifouling paint, realizes non-toxicity and environmental friendliness of the marine antifouling technology, and can be widely applied to the facilities and the fields, such as ships, floating piers, marine oil platforms, submarine cables, cooling pipes of power plant near the sea, sea water culture net cage and the like.

The invention relates to a preparation method of modified cation waterborne polyurethane emulsion containing hydrophilic and hydrophobic side long chains and a product thereof. The method comprises the following steps that raw materials are prepared; polyester glycol dehydration pretreatment is carried out; polyester glycol obtained after dehydration pretreatment is subjected to a prepolymerization reaction with an end alkyl polysiloxane linear body, a nonionic chain extender, a functionality chain extender and diisocyanate under catalyzing of a polymerization catalyst so that a prepolymer can be obtained; the prepolymer reacts with a nonionic chain extender and a part diluent to prepare an intermediate; the intermediate reacts with a silane coupling agent, and is emulsified to prepare the modified cation waterborne polyurethane emulsion. The product is a polyester type cation waterborne polyurethane high-polymer material containing hydrophilic and hydrophobic side long chains, wherein polysiloxane is embedded into a main chain of the material, a side chain is grafted with long-chain polyether and long-chain alkyl, and the silane coupling agent is connected into the tail end of the material; the film-forming ability is high, and serving as a film, the emulsion has obvious water-repellent, antifouling and easy dirt-removing abilities, is excellent in compatibility with a cation softening agent, and has an excellent low-temperature soft feature; the product is safe, environmentally friendly and convenient to use.

The invention discloses a preparation method of a high-performance fingerprint-resistant agent. The preparation method includes the following steps that hydroxyl-terminated perfluorinated polyether and allyl bromide react to obtain allyl-terminated perfluorinated polyether; allyl-terminated perfluorinated polyether and hydrogen-containing silicone oil are subjected to a layer adding reaction through silicone hydrogen, and perfluorinated polyether-hydrogen-containing silicone oil (unreacted hydrogen still exists in silicone oil) is obtained; the obtained product and allyl siloxane continue to be subjected to a silicone hydrogen water adding reaction to obtain a needed target product pectinate perfluorinated polyether-siloxane; then pectinate perfluorinated polyether-siloxane is prepared into the fingerprint-resistant agent. The prepared fingerprint-resistant agent has the advantages of being good in hydrophobic and oleophobic performance, excellent in anti-fouling property and good in fingerprint easy-to-move property, a fingerprint-resistant coating and a glass base material are high in bonding force, the product is good in abrasion resistance, and compared with the prior art, the durability and abrasion resistance of the fingerprint-resistant agent are greatly improved.

Multi-layer coatings are disclosed that include (1) a first layer comprising an inorganic oxide network, and (2) a second layer applied over at least a portion of the first layer, wherein the second layer is deposited from at least one liquid composition that is hydrophilic and includes an essentially completely hydrolyzed organosilicate. Also disclosed are substrates coated with such multi-layer coatings, methods of applying such multi-layer coatings to a substrate and methods for improving the anti-fouling, self-cleaning, easy-to-clean, and/or anti-fogging properties of an article.

The invention relates to one-time sintered super-flat ink-jet penetrating porcelain tiles with three-dimensional decorative effects, and a manufacturing method thereof. According to the manufacturing method, a bottom green brick layer, a priming glaze slurry, a semitransparent glaze slurry, and a transparent glaze slurry are prepared respectively; the bottom green brick layer is subjected to following treatment respectively: a priming glaze layer is formed via priming glaze slurry pouring, jet printing of decorative patterns is carried out, a semitransparent glaze layer is formed via semitransparent glaze slurry pouring, and drying is carried out; obtained green bricks are printed with decorative patterns with ink-jet of penetrating ink and jet printing of a permeation promoter, and are allowed to stand for more than 5min; the obtained green bricks are printed with isolation glaze with water isolating performance via silk-screen printing, and are dried and cooled; the green bricks are coated with the transparent glaze slurry via pouring; the green bricks are subjected to one time sintering so as to obtain one-time sintered ink-jet penetrating porcelain tile semi-finished products with three-dimensional decorative effects; the semi-finished products are subjected to polishing via inelastic module technology so as to obtain the one-time sintered super-flat ink-jet penetrating porcelain tiles with three-dimensional decorative effects.

The present invention discloses the preparation process and application of fluorocarbon chain-containing acrylate and its copolymer. The preparation process of the fluorocarbon chain-containing acrylate includes the steps of: 1. synthesizing Rf(CH2CF2)mix; 2. synthesizing fluoric alcohol Rf-(CH2CF2)m(CH2)nOH; and 3. synthesizing fluorocarbon chain-containing acrylate. The present invention is used in surface water-repellent and oil-repellent treatment of fabric, metal, paper, glass, plastic, rubber, ceramic, etc. The present invention is one kind of high performance green water-repellent and oil-repellent agent with excellent water-repellent, oil-repellent and antifouling functions and degradability.

The present invention pertains to a method for preparation of superhydrophobic timber on the basis of a sol-gel method, and the method is as follows: (1), silica sol synthesis, to be more specific, materials are prepared in the volume ratio of ammonia to anhydrous ethanol to ethyl orthosilicate of 1:15 to 17:1; (2), hydrophobic modification of monodispersed nano silica sol, to be more specific, hexadecyl trimethoxysilane, or triethoxysilane-1H, 1H, 2H, 2H-heptadecafluorodecyl silane is used for hydrophobic modification of the synthesized monodispersed nano silica sol, and the hydrophobic agent promotes mutual aggregation of nanoparticles to promote the formation of aggregates of silica nanoparticles; and (3) timber coating processing, to be more specific, the timber surface is coated with the hydrophobically modified silica sol solution by dipping or spraying process. Contact angles of the processed timber surface and water droplets are greater than 150 degrees, roll angles are less than 10 degrees, and a superhydrophobic film has good resistance to acid and alkali erosion and stability in high-humidity environment. The method is simple in operation, less demanding on equipment, and capable of scale production, and has wide market prospects.

The invention discloses a full polished glaze porcelain tile capable of self-exciting to produce negative ions, and a preparation method for the full polished glaze porcelain tile. A negative ion material is added into the full polished glaze of the conventional full polished glaze porcelain tile, and the full polished glaze which is sintered at high temperature has the characteristics of high transparency, high gloss, high wear resistance, low porosity and good antifouling property, and has the function of exciting steam in air to produce negative oxygen ions. The full polished glaze porcelain tile can be widely applied to household and various engineering decoration, and has an obvious effect when used in a bathroom. In the environment of high air humidity, the negative ion full polished glaze can effectively excite the steam to form the negative ions which are beneficial to the health of a human body.

This invention discloses an anti-biofouling membrane for water-treatment. The anti-biofouling membrane for water-treatment comprises a substrate, and an anti-biofouling copolymer on the substrate. The anti-biofouling copolymer comprises a plurality of hydrophobic groups and a plurality of hydrophilic groups. The anti-biofouling copolymer can be stably coated on the surface of the substrate by the hydrophobic groups. And the hydrophilic groups can help the anti-biofouling membrane to present excellent anti-biofouling capability. Preferably, the anti-biofouling copolymer coated on the substrate will not decrease the permeability of the substrate. More preferably, the presented capability of the mentioned anti-biofouling membrane for water-treatment can achieve the commercial level filtering membrane.

The present invention provides a film for the protection of the surface of polarizer film. Said film surface has anti-static coated layer. The coating solution contains polythiophene, surfactant, binding resin and water. According to the present invention, said protection film on the surface on the polarizer film has the excellent anti-static, transmittance, anti-foul and water repellence. It is able to prevent the invasion of imbuing with dust, accumulative anti-static and water vapor from the processing of assembling and transportation so as to influence the quality of polarizer film.

The invention belongs to the technical field of a marine anti-fouling material and discloses an organic silicon polyurethane/urea anti-fouling material bonded with an anti-fouling factor and preparation and application thereof. The anti-fouling material is prepared from the following raw materials in percentage by weight: 15 percent to 95 percent of hydroxy or amino terminated polysiloxane, 4 percent to 60 percent of diisocyanate and chain extender and 1 percent to 25 percent of anti-fouling functional factor, wherein the molar ratio of the diisocyanate to the sum of the hydroxy or amino terminated polysiloxane, the chain extender and the anti-fouling functional factor is (1.0 to 1.3):1. The anti-fouling material disclosed by the invention has excellent anti-fouling performance and is an environmental-friendly material.

The invention, belonging to the field of paints, discloses a low surface energy nano polyurethane anti-fouling paint and a preparation method thereof. The paint is mainly applied in preventing fouling for ships. The low surface energy nano polyurethane anti-fouling paint comprises 20-60 wt% of organosilicon modified acrylic resin, 0.5-10 wt% of polydimethylsiloxane resin, 0.5-10 wt% of fluoroal kylsilane modified nano silicon dioxide, 20-40 wt% of extender pigment, 5-15 wt% of auxiliary agent, and 10-30 wt% of organic solvent. The preparation method comprises the following steps: 1) carrying out surface treatment with fluoroal kylsilane on nano silicon dioxide; 2) preparing the treated fluoroal kylsilane modified nano silicon dioxide into a concentrated slurry; and 3) mixing the fluoroal kylsilane modified nano silicon dioxide concentrated slurry with other raw materials to obtain a component A of the anti-fouling paint; dissolving a curing agent to obtain a component B, adding the component A in the component B, curing 30 min-15 day at a temperature of 10-30 DEG C to form the low surface energy nano polyurethane anti-fouling paint. The anti-fouling paint prepared by using a new technique of nanoparticle treatment has the advantages of low surface energy, no toxicant release, safety, and environmental protection.

The invention discloses a pollution-resistant modified method for a polymer membrane containing arone perssad. The method comprises the following steps: poly(methyl)acrylic acid epoxy alkyl ester is grafted on the surface of an ultra-(micro-)filtration or nanofiltration membrane through ultraviolet graft polymerization; further reaction is conducted to generate alkyl halide; the alkyl halide is conducted by reaction with acrylic acid betaine compounds under the condition that certain catalyst, ligands or reducing agent are subsistent; the ultra-(micro-)filtration or nanofiltration membrane with favorable hydrophilcity and pollution-resistant performance is obtained. Purified water flux of the prepared ultra-(micro-)filtration or nanofiltration membrane can reach to 50-280 L/m<2>.h; the reject rate of the pollution-resistant ultra-(micro-)filtration or nanofiltration membrane to bovine serum albumin is 95-100%; the recovery rate of water flux reaches to 97-100%. The pollution-resistant modified method is characterized in that a small quantity of initiating agent functional groups are introduced quickly on the surface of the membrane through the light graft method; then graft polymerization is conducted in water phase adopting an atom free radical transferring polymerization method; the pollution-resistant modified method has the advantages that the polymerization system can be repeatedly used, and is easy in continuous production; the polymer is grafted with the zwitter ionic pair perssad with a betaine structure, so that the surface of the membrane is high in hydrophilia; the pollution-resistant capability is improved remarkably.

An anti-glare hard coating solution is provided to retain good physical properties needed for hard coating films, and to suppress a peeling-off or curling phenomenon of a hard coating layer. An anti-glare hard coating solution includes (A) 5-50wt% of organic-inorganic silica particles in which a multi-functional silane compound comprising multi-functional (meth)acrylate represented by the following formula 1 is chemically bound to hydroxyl groups on the surface of the silica particle, (B) 5-40wt% of multi-functional (meth)acrylate, (C) 0.1-10wt% of an initiator, and (D) 1-20wt% of silicon fine particles, based on 100wt% of the hard coating solution.

The invention relates to an environment protecting resin-bonded pigment printing adhesive that is made up according the following steps: adding 0.5-1% polyacrylic acid salt into polyurethane acrylic ester emulsion, adjusting pH value to 7-8 to gain cream, and the viscosity is 30-60Pa.S. The preparation of polyurethane acrylic ester emulsion includes the following steps: gaining end ethenyl polyurethane performed polymer from polyether glycol, isocyanic ester and auxiliary agent, mixing the preformed polymer with acrylic ester monomer and water to make dispersing liquid, irradiating for 30-50 minutes at 1.5-2.5KGy radiation dose. The content of formaldehyde is below 5ppm and APEO below 5ppm in the adhesive. The product is environment protection.

The invention relates to a preparation method and product of a modified polyurethane flexible high-molecular emulsion containing side long chain alkyl. The preparation method comprises the following steps: preparing raw materials including a polymeric monomer, a modifying agent, an auxiliary agent and water; performing dehydration pretreatment on polyether triol and polyether glycol; performing prepolymerization; performing chain extension; sealing ends; and emulsifying to prepare a modified polyurethane flexible high-molecular emulsion product containing side long chain alkyl. According to the modified polyurethane flexible high-molecular emulsion disclosed by the invention, polysiloxane chain links and polyolefin chain links are embedded into a skeleton structure of the modified polyurethane flexible high-molecular emulsion, and polyurethane high molecules are modified by using long chain alkyl. The obtained modified polyurethane flexible high-molecular emulsion containing side long chain alkyl has a certain density of long chain crosslinking and side long chain alkyl, has excellent stability, can be applied to dry coating processing of various substrate coatings and artificial leathers, and ensures that significant water-repellent and anti-fouling abilities, extremely excellent extension performance, excellent low-temperature high flexibility and anti-bending performance of product coating films can be achieved; and the product is safe and environment-friendly, and is convenient to use.

The invention relates to the technical field of building ceramics, particularly to a high-performance wear-resistant glaze and a preparation method thereof, wherein the high-performance wear-resistantglaze comprises, by weight, 65-75% of raw glaze powder and 25-35% of frit powder, the raw glaze powder comprises, by weight, 30-40% of albite, 12-16% of calcined talc, 4-10% of kaolin, 10-15% of calcite, 2-8% of zinc oxide, 10-15% of wollastonite, 10-20% of corundum and 2-8% of barium carbonate. A purpose of the invention is to provide a high-performance wear-resistant glaze and a preparation method thereof, wherein the flatness of the glazed brick prepared from the glaze meets the production process requirements while the contradiction between the transparency and the wear resistance of theglaze layer is solved, and the prepared glazed brick is greatly improved in wear resistance, high in flatness and good in color development.

The invention discloses an ultraviolet light/sunlight cured fluorine-free antifouling coating and a preparation method thereof. The preparation method is characterized in that firstly, the synthesis of a low surface energy prepolymer is performed; an isocyanate type compound and hydroxyl containing polysiloxane are uniformly mixed and are heated to 50 to 90 DEG C; a catalyst is added for reaction;a solvent and/or a reactive diluent are/is added; then, a hydroxyl containing acrylate monomer and a polymerization inhibitor are added; the temperature is maintained to be 50 to 90 DEG C; the reaction is performed for 0.5 to 4h; the low surface energy prepolymer is prepared; then, the reactive diluent or a photosensitive group containing urethane acrylate affixture is added into the low surfaceenergy prepolymer; a photoinitiator is added; through ultraviolet light curing or sunlight curing, the fluorine-free antifouling coating is obtained. The use of expensive fluorine-containing compoundsand fluorine-containing solvents is avoided; the coating can be cured under the room temperature condition; the ultraviolet light curing time is short; the production cost is effectively reduced; thecoating has excellent antifouling performance and is applicable to various substrates.

The invention discloses a preparation method of a high-performance anti-fingerprint agent. The preparation method comprises the following steps that firstly, allyl terminated perfluoropolyether reactswith a siloxane compound containing silicon-hydrogen bonds for obtaining a perfluoropolyether silane compound containing silicon-hydrogen bonds, the obtained product reacts with methyl vinyl dichlorosilane for obtaining perfluoropolyether-silane with dichlorosilane modified terminal groups, the obtained perfluoropolyether-silane with dichlorosilane modified terminal groups reacts with allyl magnesium bromide for obtaining terminal allyl modified perfluoropolyether-silane with polyfunctional groups, the obtained terminal allyl modified perfluoropolyether-silane with polyfunctional groups reacts with methyldichlorosilane for obtaining dichlorosilane modified perfluoropolyether-silane, dendritic terminal allyl modified perfluoropolyether-silane is obtained by repeated reaction; and then theobtained dendritic multi-functional perfluoropolyether-silane reacts with a siloxane compound containing silicon-hydrogen bonds for obtaining the dendritic perfluoropolyether alkoxy silane compound with polyfunctional groups. The anti-fingerprint agent prepared by the method provided by the invention has a good hydrophobic oleophobic property and excellent antifouling property, and has excellent bonding fastness to glass substrates, and the wear resistance and the durability are greatly improved.

The invention provides a preparation method for a super white ceramic vitrified tile produced by using magnesium aluminum silicate as a raw material. The super white ceramic vitrified tile comprises components of potassium feldspar, albite, calcined talc, black clay, a water reducing agent, a lithium feldspar, diopside, an intensifier, washed mud and quartz. The ultralow temperature fast firing vitrified tile belongs to a special ultralow temperature, high-strength, high-hardness, high abrasion-resistance, strong antifouling, low-radiation, environment-friendly, healthy and novel vitrified tile material and product. The technology can reduce firing temperature and shorten a firing period greatly and is favorable for energy conservation and emission reduction of ceramic industry, green manufacturing and low carbon production.