284results about How to "Strong UV shielding effect" patented technology

The invention discloses a corrosion-resistant magnesium aluminum alloy chromium-free passivation solution, which comprises the following components: 10-40 parts of water-base resin, 1-10 parts of nanoparticle sol, 1-10 parts of fluoric-containing acid, 1-5 parts of fluoric acid-containing salt, 1-5 parts of a rare earth catalyst, 1-10 parts of a silane coupling agent, 1-5 parts of a corrosion inhibitor, 1-2 parts of a complexing agent and 40-70% of water. The corrosion-resistant magnesium aluminum alloy chromium-free passivation solution does not contain chromium and other toxic and harmful substances, meets the ROHS environmental protection law of the European Union, and meanwhile, can form an organic and inorganic composite passivation film and a thin film on the surface of a magnesium aluminum layer, and the formed composite passivation film has an excellent physical property and corrosion resistance, and has higher corrosion resistance and long salt fog time, so that the corrosion resistance of a magnesium aluminum alloy plate is better improved.

The invention relates to a watercraft nanometer compounding polyester polyurethane coating material and the manufacture method that taking coupling and solidifying of the water craft nanometer compounding polyester resin with watercraft sealed polyisocyanate to gain the invention. It has stable performance, good transmittance, and high rigidity. It could be used for wood coating material, metal coating material and plastic coating material.

The present invention relates to one kind of transparent composite epoxy material and its preparation process and use. The transparent composite epoxy material has nanometer composite inorganic stuffing comprising nanometer silica particle serving as core, titania serving as shell coating the silica particle core and outer silica layer coating the titania shell. The transparent composite epoxy material possesses high transparency, excellent ultraviolet ray shielding effect, high ultraviolet ray tolerance, low heat expansion coefficient, high heat conductivity and other advantages, and is suitable for use in pacing LED and other light emitting semiconductor devices.

The invention discloses a scratch-resistant outdoor powder paint which is composed of the following raw materials in parts by weight: 5-8 parts of modified sericite, 10 parts of silicon dioxide, 8-15 parts of modified nano tin tungsten oxide, 5 parts of barium sulfate, 7 parts of titanium dioxide, 1-3 parts of dispersing aid, 1-3 parts of leveling agent, 0.05-1 part of defoaming agent, 1 part of polytetrafluoroethylene wax, 30 parts of water-based polyurethane resin and 30 parts of organic silicon resin. The paint is suitable for heat insulation on the surfaces of building glass, vehicle glass and cement, can shield ultraviolet and infrared light, and has the advantages of favorable heat-insulating property, favorable scratch resistance, stable coating performance and simple preparation technique.

An object of the present invention is to provide a water-in-oil type emulsion sunscreen cosmetic which can achieve excellent UV protection capability and have excellent effects in the prevention and inhibition stability of discoloration with the passage of time.

The water-in-oil type emulsion sunscreen cosmetic in the present invention is characterized by comprising 1 to 30% by mass (a) hydrophobized titanium oxide and/or zinc oxide, 0.1 to 10% by mass (b) phenylbenzimidazole sulfonate, 50% by mass or more (c) triethanolamine with respect to the component (b), 0.1 to 10% by mass (d) trimethylsiloxysilicate and further, if desired, 0.01 to 20% by mass (e) silicone surfactant.

The invention discloses a biodegradable polylactic acid agricultural mulching film and a processing technology thereof, and relates to the technical field of agricultural mulching films. The biodegradable polylactic acid agricultural mulching film is prepared from the following raw materials in parts by weight: 100-120 parts of polylactic resin, 15-30 parts of light calcium carbonate, 5-10 parts of polypropylene carbonate, 5-10 parts of carboxymethyl-beta-cyclodextrin, 1-5 parts of PEG-60 hydrogenated castor oil, 1-5 parts of hexakis(methoxymethyl)melamine, 1-5 parts of ultraviolet screening agent and 0.5-2 parts of antioxidant. According to the biodegradable polylactic acid agricultural mulching film and the processing technology thereof, the polylactic acid film is prepared by taking thepolylactic resin as a main material and co-taking a plurality of auxiliary materials, and the prepared polylactic acid film belongs to the biodegradable film and is non-toxic, harmless and strong inuse environmental protection property; and in addition, the usability is excellent, and the use requirement of the agricultural mulching film is met.

The invention discloses a preparation method of a titanium dioxide/polysiloxane photocatalytic composite film, which comprises the following steps: adding vinyl-terminated silicone oil, hydrogen-containing silicone oil and titanium sol into a film-forming solvent, uniformly mixing, adding a reinforcing agent silicon dioxide, uniformly mixing, adding a platinum catalyst to initiate silicon hydrogen addition reaction, pouring into a mold, and gradually forming the film along with the solvent volatilization and silicon hydrogen addition reaction, thereby obtaining the titanium dioxide/polysiloxane photocatalytic composite film. The method is simple in technique and easy to implement; the crosslinking level of the stereoscopic network structure of the composite film is controllable, and silicon dioxide granules can be uniformly and stably dispersed in the composite film in the form of primary particles and can be easily enriched and embedded in the surface layer of the composite film; and the composite film has the advantages of favorable mechanical strength and obvious ultraviolet shielding effect, has excellent photocatalytic functions of resisting bacteria, degrading organic substances and the like, and can be used in the fields of textiles, paints, buildings, cosmetics, sanitation, medicine and the like.

The invention provides a cross cool easy cation-dyeable polyester (ECDP) fiber and a production method thereof. The production method comprises the following steps: carrying out melt blended spinning on cool master batches of mica and ECDP, spurting the silk by a cross spinneret plate, ensuring the silk to enter into a pre-drawing machine to be pre-drawn after the silk is aired and cooled, then ensuring the tows to enter into a tow collecting barrel to be set and then carrying out cutting off and packing, thus obtaining the cross cool ECDP fiber. The fiber and the production method have the following beneficial effects: the garment fabric made of the fiber not only has the functions of absorbing moisture and cooling but also has the ECD characteristic; and the subsequent dyeing cost is saved; and the fiber can be independently spun and also can be blended with other products, is suitable for development of sportswear and undergarments and has good comfortableness and health care property.

The invention discloses a weather-resistant coating and a preparation method thereof. The weather-resistant coating comprises the following components in parts by weight: 10-40 parts of water, 10-50 parts of an acrylic acid emulsion, 20-70 parts of packing, 0.1-1 part of an ultraviolet absorbent, 1-30 parts of nano zinc oxide, 0.1-5 parts of a dispersing agent, 0.1-5 parts of a wetting agent, 0.5-5 parts of a defoaming agent, 0.1-5 parts of a leveling agent, 0.1-5 parts of a thickening agent and 0.1-5 parts of a preservative. The invention further discloses a preparation method of the weather-resistant coating. By adopting the weather-resistant coating, the ultraviolet light shielding property of a coated layer can be protected, meanwhile, the density of the coated layer can be greatly increased, the water resistance property of the coated layer can be improved, and thus the water movement prevention property of a pre-installed and inverted adhered waterproof roll can be improved; and in addition, the tensile strength and break elongation of the coated layer can be remarkably improved, and thus the waterproof property of the pre-installed and inverted adhered waterproof roll can be improved.

The invention relates to a leather greasing agent endowing leather with a function of shielding ultraviolet ray and a preparation method thereof. At present, leather processing aid develops in the direction of being environment-friendly, degradable and functional. The leather greasing agent disclosed by the invention is prepared by the following steps: preparing TiO2-ZnO composite nanoparticles by virtue of a precipitation method, carrying out hydrophobic modification by virtue of a modifier and introducing the nanoparticles to a hydrogenated castor oil matrix; and carrying out succinic acid esterification and sulfonation, thus finally preparing the hydrogenated castor oil-based nano-TiO2-ZnO composite leather greasing agent. The greasing agent disclosed by the invention, on the basis of excellent ultraviolet ray shielding performance of the TiO2-ZnO composite nanoparticles, can endow the greased leather sample with the function of shielding ultraviolet ray; and meanwhile, by virtue of a 'bridged linkage' function between an organic group on the surfaces of the TiO2-ZnO composite nanoparticles and the hydrogenated castor oil matrix, an inorganic-organic phase separation phenomenon is improved.

The invention discloses a transparent acrylic acid silicone resin nano composite material and a preparation method thereof. The transparent acrylic acid silicone resin nano composite material is prepared by adopting the steps of dissolving 100 parts of organic silicone resin containing methacryloxy at terminal group, 1 to 100 parts of photocuring monomer containing unsaturated double bond, 1 to 6part of ultraviolent photoinitiator and 0.001 to 0.6 part of polymethacrylate polymer-grafted inorganic nano particle in a polar solvent in the terms of weight, and performing free radical copolymerization reaction under the illumination of ultraviolet light to prepare the transparent acrylic acid silicone resin nano composite material. The prepared nano composite material has high visible light transmittance, excellent ultraviolet shielding property and good dielectric property. The prepared composite material has extraordinarily wide application prospect owing to the prominent integrated performances, especially in the fields in which high transparency, ultraviolet shielding and dielectric property are required. In addition, the adopted preparation method has the advantages of wide sources of raw materials, simple and controllable preparation process, and the like.

The invention discloses a strong-acid-resistant high-strength anticorrosive paint which comprises the following components in parts by mass: 25-28 parts of epoxy resin, 22-26 parts of polyurethane, 9-13 parts of silicon dioxide, 5-7 parts of titanium dioxide, 3-6 parts of zinc powder, 2-5 parts of barium sulfate, 4-6 parts of graphite, 7-9 parts of diacetone alcohol, 5-9 parts of polytetrafluoroethylene, 7-11 parts of polydimethylsiloxane, 4-8 parts of carboxymethyl cellulose, 1-3 parts of tributyl phenol polyethenoxy ether and 33-45 parts of deionized water. The invention also discloses a preparation method of the strong-acid-resistant high-strength anticorrosive paint. The product can resist corrosion of strong acid and strong alkali, performs the protective and anticorrosive functions on equipment in extreme weather, and has the advantages of excellent mechanical properties, high scrub resistance, high aging resistance, high powdering resistance, higher weather resistance, higher wear resistance, better high-temperature resistance, high safety and environment friendliness.

The invention discloses nano cellulose/aramid fiber nano fiber membrane composite nano paper and a preparation method thereof. An aramid fiber nano fiber which is of a nano scale structure and has high strength and high modulus, a large length-diameter ratio and good temperature resistance and moisture resistance is used as a reinforcing body through in-situ filming in a layer-by-layer self-assembling mode, similarity and compatibility of micromorphologies of the aramid fiber nano fiber and nano cellulose and the advantage that a strong network cross-linking structure is easily formed by richfunctional groups on the surfaces of the fibers are sufficiently brought into play, the wet strength, ultraviolet ray shielding properties, temperature resistance and aging resistance of a nano fiber-based material are synergistically improved, a high-performance nano cellulose-based novel material which has excellent mechanical strength and water resistance, outstanding ultraviolet ray shieldingproperties and aging resistance as well as good temperature resistance is developed, the service performance and the service life of a conventional nano cellulose-based material in harsh use environments such as high temperatures, high humidity, ultraviolet radiation and the like can be improved, product grades can be improved, and the requirements of application in high-end fields can be met.

The invention discloses a biobased polyarylester and a preparation method thereof. The polyarylester has the structural formula shown in the specification, wherein n is not less than 120 and not more than 200, and R is H or alkyl. The preparation method of the biobased polyarylester comprises the following steps of: carrying out esterification on 2,5-furandicarboxylate and diphenolic acid or esters of diphenolic acid under the catalysis action of esterifying enzyme to prepare an esterification product; and then carrying out condensation polymerization on the esterification product under the catalysis action of polyoxometalates. The biobased polyarylester has excellent toughness, heat resistance, fire resistance, ultraviolet screening property, bend recovery, dimensional stability and creep resistance and can be widely applied to the field of mechanics, electronics, vehicles, aviation, medical treatment, foods and the like.

The invention belongs to the field of preparation of polymer materials and discloses a high-ultraviolet-shielding high-barrier nanomaterial film and a preparation method thereof; ethanolamine functionalized graphene nanoribbons are dispersed in low-density polyethylene base to produce masterbatch; the masterbatch is mixed with low-density polyethylene granules according to a mass ratio of 1:1 and is extruded, pelletized and sheeted and cut into the nanomaterial film; in the nanomaterial film, the ethanolamine functionalized graphene nanoribbons account for 0.2-1.5% by weight of the low-density polyethylene base; the graphene oxide nanoribbons herein are subjected to ethanolamine modification, the ability of the nanoribbons to dissolve in an organic solvent is improved, and the nanoribbons can be dispersed evenly in LDPE (low-density polyethylene) base; by tightly combining ethanolamine functionalized graphene nanoribbon intercalation with the LDPE base, the composite material is provided with excellent barrier property; by introducing ethanolamine, the ultraviolet shielding property of the composite film is greatly improved; the film is applicable to the field of ultraviolet shielding and barrier packaging film and has a promising application prospect.

The invention provides a ceria-zirconia oxide nanometer material dispersed in water medium. Water is used as a dispersion medium, solid solution nano-particles prepared from cerium oxide and zirconium oxide are used as dispersion-phase sol, wherein the nano-particle is a single crystal with the nanoscale being 2-8nm and is singly dispersed in the water medium; the mass of the CexZr(1-x)O2 nano-particles is 0.1-30% of the volume of the nanometer material sol, the content of the CexZr(1-x)O2 nano-particles can be further increased through evaporation and concentration or water can be added freely for dilution. The prepared ceria-zirconia oxide nanometer material has the nano-meter characteristics of remarkable small size effect and surface effect and the like, and can be used for an oxygen storage/release material of a three-way catalyst for automobile exhaust gas purification, a carrier of a supported catalyst or an assisted-catalysis material, optical glass, semiconductors, LED ultra-precision polishing materials, a surface layer thermal barrier or a wear-resistant material of a special plate, a catalytic promoter of a fuel cell anode, and an optimal property modifying agent for hydrogen storage, sensing, luminous and ceramic materials and the like.

The invention discloses a preparation method of an intelligent energy-saving composite film. The preparation method comprises the steps: mixing thermochromic slurry and tungsten bronze heat absorbingslurry to prepare composite slurry; then, adding a polymer film forming agent; and coating a substrate to prepare the intelligent energy-saving composite film. By utilizing the infrared absorption characteristic of tungsten bronze, the heat sensitivity of a thermochromic material is improved, the thermal response speed is increased, and the phase-change response time is shortened; meanwhile, due to the combination of the ultraviolet barrier property of the thermochromic material, the weather resistance of tungsten bronze is improved, the intelligent energy-saving composite film with high efficiency and high stability is obtained, and the intelligent energy-saving composite film can be widely applied to building glass, automotive glass and the like, can make the temperature inside a room ora vehicle reach a comfortable temperature range all the year round and has a good application prospect.

The invention belongs to the technical field of hydrogel and specifically relates to high-strength self-repair ultraviolet shielding conductive PVA hydrogel and a preparation method thereof. The method comprises the steps: wrapping the surface of talcum powder by gallotannic acid; then adding into polyvinyl alcohol (PVA)/ethylene glycol water solution to be evenly mixed; soaking into aluminum ionsafter being frozen to prepare the high-strength self-repair ultraviolet shielding PVA hydrogel. According to the high-strength self-repair ultraviolet shielding conductive PVA hydrogel disclosed by the invention, talcum powder/gallotannic acid compound is utilized, so that the PVA hydrogel can simultaneously have high strength and ultraviolet shielding performance; meanwhile, the aluminum ions are utilized, so that the hydrogel has electrical conductivity; thus, the three defects of low strength, no ultraviolet shielding and no electrical conductivity of ordinary PVA hydrogel are improved, and the PVA hydrogel has higher application value.

The invention relates to the technical field of functional preparation of outdoor fabrics, and particularly relates to a polysiloxane, a preparation system thereof, a polysiloxane-polyurethane-titanium dioxide mixed paint and application of the paint. According to the invention, a multifunctional coating having self cleaning performance, ultraviolet resistance and superhydrophobicity is prepared from low-cost polysiloxane, polyurethane adhesive and titanium dioxide powder. A multifunctional outdoor fabric can be obtained by applying the multifunctional coating to a blended warp knitting fabric through a simple process. By using the ultraviolet absorption capability of titanium dioxide, the product can greatly degrade organic pollutants on the surface of the fabric; and meanwhile, the coating taking polysiloxane as a main component can not be subjected to photodegradation of the titanium dioxide, thereby favorably ensuring the anti-aging fastness of the fabric. The product itself has a superhydrophobic function, thereby being capable of effectively blocking a large amount of water droplets outdoors. The product has the advantages of low raw material cost, simple process and low technological transformation difficulty, thereby being suitable for industrial production.