746results about How to "Improves UV protection" patented technology

The invention provides a compound gas phase antirust masterbatch which is prepared from a gas phase antirust additive, a polyolefin carrier, a friction additive, an auxiliary function additive, a coupling agent, a dispersing agent, an auxiliary dispersing additive and other processing additives through mixing, stirring, milling and sieving. A gas phase antirust plastic film prepared from the compound gas phase antirust masterbatch of the invention is characterized by high barrier performance, electric conductivity, flame resistance and UV ray screening property. Gas phase antirust gas generated from the film can volatilize and penetrate into corners and spaces of packages where antirust oil can not reach and the gas also has long time antirust effect, thus overcoming the defects of rust prevention with antirust oil or a drying agent and being a quite good antirust material.

The invention provides metal sandwiched glass with intermediate film which comprises a glass plate, intermediate film having surface gluing material EVA or SGP, a metallic decorative thin panel, an intermediate film of organic gluing material EVA or SGP, and a glass plate. And the secondary rolling production process comprises glass cleaning, hot-air drying, sheet combining, first heating, first rolling precompression, second heating, second rolling precompression, quality inspection, final forming in autoclave, and packaging.

The invention relates to a method of preparing a composite preservative film or coating from chitosan and alcohol soluble corn protein. The method mainly comprises the following steps: (1) preparing 2wt% chitosan solution; (2) preparing 1-10wt% ethanol aqueous solution of alcohol soluble corn protein; (3) mixing the solutions prepared in the steps (1) and (2) in a volume ratio of 1:9 to 9:1 (v/v) to obtain a composite film solution; (4) flow casting the composite film solution obtained in step (3) and drying to obtain a film; or sequentially overlaying the solutions prepared in the steps (1) and (2) to obtain a double-layer preservative film. The chitosan-alcohol soluble corn protein composite preservative film or coating prepared in the invention is not only improved in the moisture resistance and ultraviolet resistance of a chitosan film, but also improved in the barrier property, mechanical properties and antibacterial activity of a alcohol soluble corn protein film, and is degradable, edible, etc. When the chitosan-alcohol soluble corn protein composite preservative film or coating prepared in the invention is used to package or wrap foods such as meat, oils and fats, fruits and vegetables, the quality guarantee period thereof can be effectively prolonged. Thus, the method has an extensive application prospect.

The present invention is directed to a water-in-oil emulsion composition comprising: (A) an emulsifying silicone elastomer of a particular formula which contains cross-linking and wherein the structure contains a C3-45 alkyl group and a polyoxyalkylene group; (B) an alkyl substituted silicone emulsifier of a particular formula wherein the structure contains a C3-45 organic group and a polyoxyalkylene group; and (C) an aqueous carrier.

The invention relates to a non-woven fabric, and a preparation method and application thereof. The preparation method comprises the following steps of using oxidized graphene as ultraviolet absorption packing; uniformly mixing the oxidized graphene and zinc oxide nano coating in water; coating two sides of a non-woven fabric by using the mixture; and drying and molding to obtain the non-woven fabric. Average transmittance of the non-woven fabric in a long-wave ultraviolet region is lower than 3%; the decrease amplitude of the transmittance of the non-woven fabric in a visible light region is smaller than the decrease amplitude of the transmittance of a pure non-woven fabric in the visible light region by 30%-50%; the non-woven fabric is good in anti-ultraviolet property, and is washable; properties of the non-woven fabric can still be maintained even if the non-woven fabric is violently stirred in water for 30 days; and moreover, the non-woven fabric has characteristics of good conductivity, anti-static property, light color and environmental protection, and can be used in fields of ultraviolet protective clothing, anti-ultraviolet screen windows, anti-ultraviolet tarpaulin and anti-static clothes.

The invention provides a functional cellulose fiber containing graphene. The functional cellulose fiber containing the graphene is obtained by mixing graphene dispersion liquid with a cellulose spinning solution to prepare a graphene/cellulose spinning solution and then subjecting the graphene/cellulose spinning solution to wet spinning, wherein mass content of the graphene, in the graphene/cellulose spinning solution, accounting for Alpha cellulose in the graphene/cellulose spinning solution ranges from 2.0% to 6.0%. The invention further provides a preparation method of the functional cellulose fiber containing the graphene. In the graphene/cellulose spinning solution prepared by the method, uniformity in dispersion and difficulty in agglomeration of the graphene are achieved. According to the method, the step that oxidized graphene is reduced by a reducing agent in a follow-up process is omitted, so that fiber performance is improved. Content of the graphene in the functional cellulose fiber containing the graphene is 2.0-6.0%. The functional cellulose fiber containing the graphene is uniform in graphene distribution, high in temperature rise rate, excellent in far-infrared and anti-ultraviolet performance and better in thermal stability performance.

Sealing compositions and application methods for sealing and protecting asphalt roof shingles or other porous roofing and construction materials are described for eliminating algae, mold and mildew, increasing granular adhesion, providing additional UV protection and significantly increasing the wind resistance of the roof or other construction material. The sealing composition includes an acrylic polymer that has been modified by a silicone surfactant to alter its wetting properties so as to promote wicking of the sealer under asphalt shingles and at open edges to prevent curling and water infiltration. The method of applying the sealing composition promotes uniform distribution of the product on the surface of installed roofs as well as enhances bonding between individual shingles by improved penetration on and between shingle layers to increase adhesion area.

The invention discloses a preparation method for a one-component waterborne polyurethane transparent heat-insulating coating. The method comprises the following steps of dehydrating a polyisocyanate and a macromolecular polyol according to a certain weight proportion; adding the dehydrated materials into a four-necked flask; introducing nitrogen for protection; then adding a catalyst, a chain extender and a silane coupling agent in order; dropwise adding deionized triethylamine with high-speed stirring after the reaction is finished; then adding a nano-powder dispersion liquid into a polyurethane prepolymer neutralized with the triethylamine with high-speed stirring; adding an acid and alkali neutralizer to adjust pH values after uniform distribution, and thus the waterborne polyurethane nano-powder composite emulsion is obtained; removing a solvent from the composite emulsion; and adding a flatting agent, a wetting agent, a defoaming agent and a thickening agent, so that a waterborne polyurethane nanocomposite coating can be prepared. The preparation method is simple in process and low in cost, and the coating is environment-friendly, fits the national environmental protection quality standard, and has excellent heat insulation performance and transparency.

The invention discloses a novel health-care environment-friendly textile fabric. The novel health-care environment-friendly textile fabric comprises the following components, by mass, 25%-30% of regenerated cellulose fibers, 15%-20% of seaweed carbon fibers, 20%-25% of polylactic acid fibers, 10%-15% of chitin fibers and 25%-30% polyester fibers, and is formed by warp and weft being interwoven, wherein the warp is made of the regenerated cellulose fibers and the seaweed carbon fibers in a blending mode and the weft is made of the polylactic acid fibers, the chitin fibers and the polyester fibers in a blending mode. Through the method, the novel health-care environment-friendly textile fabric has ultraviolet ray and infrared ray radiation resistance performance, at the same time, has superior health-care nursing functions and biodegradable performance, and is free of toxic, harmless, capable of protecting the environment and safe.

The invention belongs to the technical field of nanocomposites, and discloses anti-ultraviolet radiation lignin-based zinc oxide composite particles for fabric and a preparation method and application in the fabric of the particles. The preparation method comprises the following steps that 1, pH of a lignin sulfonate aqueous solution is adjusted to be alkaline, heating is conducted, an active agent is added for reacting, a carboxylated reagent is added, an isothermal reaction is conducted, and carboxylated lignin sulfonate is obtained; 2, carboxylated lignin sulfonate prepared in the first step is prepared into an aqueous solution, the pH is adjusted to be alkaline, a zinc salt is added for reacting, reacting is conducted by heating, the pH is adjusted to be 9 to 11, reacting is conducted continuously, a cross-linking agent is added for reacting, cooling, ageing, separating and drying are conducted, and the lignin-based zinc oxide composite particles are obtained. According to the composite particles, agglomeration among nano zinc oxide particles is overcome, the particles are dispersed uniformly, adhesion to fabric fibers is improved, effective protection of UVA and UVB full-wave bands is provided, and the problem that the ultraviolet-protection capacity is limited is solved.

The invention relates to a surface antifouling corrosion-resistant protectant for glass fiber reinforced plastic and other polymer products. The surface antifouling corrosion resistant protectant for glass fiber reinforced plastic and other polymer products, which is provided by the invention, is composed of fluoro-alkyl silane, long-chain alkyl silane, nanometer SiO2, alkyl silicate, alcohol, inorganic acid catalysts and de-ionized water or distilled water. The surface antifouling corrosion resistant protectant for glass fiber reinforced plastic and other polymer products, which is provided by the invention, can form a layer of low surface water-repellent, oil-proof, antifouling, anti-sticking, anti-ultraviolet and corrosion-resistant coat film on the surfaces of the glass fiber reinforced plastic and the other polymer products, the water contact angle can reach as high as 149 DEG, the purposes of effective reduction of rain accumulation as well as the attachment of atmospheric dust, guano, etc. on the surfaces of the glass fiber reinforced plastic and the other polymer products, acid rain corrosion damage resistance, salt mist corrosion damage resistance, ultraviolet corrosion damage resistance and reduction of use and maintenance cost are achieved.

The invention relates to application of weather-resistant permeable material used to be laid on pavement to form permeable pavement. The weather-resistant permeable material comprises aggregate and binder, wherein the aggregate is one or any combination of natural quartz sand, fly ash, smelting waste residue and artificial quartz sand; the particle size of the aggregate is 0.07 to 1.6 mm; and the binder is one or any combination of epoxy resin with good weather resistance, polyurethane resin and acrylic resin. By choosing the binder with good weather resistance and adding light stabilizers and antioxidants, the weather resistance is effectively improved. By choosing hydrophilic reactable resin with good water permeability and adding hydrophilic inorganic materials to the aggregate, the water permeability of the material is effectively improved. The application of the weather-resistant permeable material is that the raw materials can be mixed and prepared into permeable prefabricated parts used for road surfacing, rainwater collection or water filtration and can also be directly laid on pavement to form permeable pavement so as to promote the full utilization of rainwater resources and improve urban water circulation.

The invention discloses fusion-method-prepared functional graphene cellulose fiber. The fiber mainly comprises 0.5-10.0% of graphene and 90.0-99.5% of cellulose. A preparation method of the graphene cellulose fiber comprises procedures of graphene dispersion liquid preparation, cellulose/ionic liquid mixture preparation, mixing, pre-fusing, spinning solution preparation and spinning. The far infrared normal emissivity of the prepared functional graphene cellulose fiber reaches 0.83-0.98, the ultraviolet protection coefficient reaches 62.78-560.21, the ultraviolet a transmittance is smaller than 4.92%, and compared with common viscose, the graphene cellulose fiber has the advantage that the thermal decomposition temperature is raised by 10-42 DEG C. By means of the method, the production process is short, less pollution is caused to the environment, the requirement of sustainable development is met, and the method has great significance for achieving a high-temperature melt spinning route of the functional cellulose.

A cosmetic comprising: component (A): water-insoluble polymer particles having an average particle size of from 1 to 40 mum, comprising a shell part including a hydrophilic polymer and a core part including a hydrophobic polymer, and carrying an ultraviolet ray preventing agent on their surface or inside; and component (B): a cationic surface active agent.

The present invention provides a liquid protectant composition composed of a cationic microemulsion of a natural wax (camauba wax) nanometer sized particles and zinc oxide nanometer sized particles in combination with a quaternary siloxane compound. The protectant composition of the present invention cleans, protects preserves and enhances the appearances of leather or vinyl surfaces used for covering items in the home or in vehicles. The product is easy to apply to both smooth and textured surfaces and has a transparent appearance. The product dries quickly and does not leave an oily residue. Utilization of nano technology to select components having nano sized particles provides a uniform deposition of the product leaving a thin film having exceptional protection properties. Unlike conventional protectants, the invention of the instant composition dries quickly and leaves no oily residue behind.