30results about How to "Good UV shielding function" patented technology

The invention provides an epoxy resin composite material with double functions of ultraviolet shielding and damage self-reporting and a preparation method, and belongs to the technical field of composite material preparation and structure monitoring. The composite material is prepared from 100 parts by weight of epoxy resin, 60-87 parts by weight of a curing agent, 0-9 parts by weight of a catalyst and 45-300 parts by weight of fibers. According to the system disclosed by the invention, an ultraviolet screening agent and any mechanochromic additive do not need to be added, and the obtained epoxy resin material can show excellent ultraviolet screening and mechanochromic capabilities. Meanwhile, the composite material can show strong color change under periodic impact, and an effective and accurate prediction capability is provided for material damage caused by mechanical impact. Different from analysis of an existing material after damage, the color of the polymer composite material can be changed before the polymer composite material is damaged and broken, and a warning effect is provided for guaranteeing safe use of the material.

The invention belongs to the field of inorganic materials, and relates to a method for preparing zinc oxalate with pearl luster and zinc oxide microfine powder with pearl luster. The method comprises the following steps of: (1) storing 100ml of solution of zinc nitrate at the concentration of 0.05 and 0.20mol/L in a reactor, adding citric acid or citrate at the concentration of between 0.05 and 0.50g/L, stirring, and regulating the pH value to be between 1.5 and 5.0; (2) taking 100ml of solution of ammonium oxalate at the concentration of between 0.06 and 0.24mol/L, and regulating the pH value to be between 5.0 and 7.0; (3) dripping the two kinds of solution into the reactor at the speed of between 2 and 10mL/min, continuing to stir and age for 30 minutes after feed liquid is added, immediately performing centrifugal separation or suction filtration separation, repeatedly washing for 4 to 5 times, and drying in a drying oven to obtain a flaky zinc oxalate powder product with pearl luster; and (4) heating a tubular calcination furnace to raise the temperature of the zinc oxalate powder in the furnace to the temperature above 380 DEG C, keeping the temperature for 1 hour, and directly taking the zinc oxalate powder out for air cooling to obtain flaky zinc oxide powder with pearl luster. The flaky ZnO prepared by the method may have a more excellent ultraviolet shielding function; and due to a unique pearlized effect of the flaky ZnO, the flaky ZnO may be developed into a novel sunscreen product which integrates beauty and practicability into a whole, or is taken as a matrix material to be subjected to treatment such as doping, coating and the like so as to form a novel pearl pigment.

The invention relates to a microcapsule with dual functions of repelling mosquitoes and resisting ultraviolet rays and a preparation method thereof. The microcapsule comprises a capsule wall with an ultraviolet resisting function and a capsule core with a mosquito repelling function. According to the invention, through complementary advantages of nanometer titanium dioxide and nanometer zinc oxidein absorption performances to radiation of the ultraviolet rays in different wave bands, the microcapsule is endowed with excellent ultraviolet shielding performance; and a mosquito repellent can play a role in repelling mosquitoes for a long time due to the slow release effect of the microcapsule. The difunctional microcapsule prepared by using the preparation method provided by the invention isuniform in particle size, has an excellent ultraviolet resisting function and a mosquito repelling function, and has good application prospect in the fields of multifunctional summer clothing textiles, outdoor textiles and daily chemicals.

The invention relates to an uvioresistant textile finishing agent which is characterized by comprising the following components in concentration: 10-50 g/L nano ceramic particles, 1.0-3.0 g/L chitosan, 1.5-2.5 g/L sodium sulfate and 0.5-1.5 wt% of glacial acetic acid. The textile processed by the finishing agent has a good ultraviolet shielding function, and the textile processing procedure is simple.

The invention relates to a titanium dioxide nanorod array film/cholesteric liquid crystal composite broadband reflecting film, and belongs to the field of application of liquid crystal display. In themethod, nematic liquid crystals, a chiral compound, polymerizable monomers and a photoinitiator are used as raw materials; the raw materials are evenly mixed and then injected into the space betweenan indium tin oxide (ITO) conductive thin film or glass with one side coated with an insulating layer and a fluorine-doped tin dioxide (FTO) conductive film or glass with a titanium dioxide nanorod array film growing on one side, and then the titanium dioxide nanorod array film/cholesteric liquid crystal composite broadband reflecting film is prepared. The titanium dioxide nanorod array in the broadband reflecting film can evenly exist on one side of a liquid crystal layer without surface modification; the array layer has an obvious broadened reflection band; the broadband reflecting film canselectively reflect visible light, near-infrared light and far-infrared light with different center peak positions and reflection bandwidths; the broadband reflecting film is environmentally friendly,free of toxicity and capable of saving energy and reducing emission, the preparation process is short, and industrial production can be realized.

The invention discloses a novel environmentally-friendly wood-plastic floor material and a preparation method thereof, and relates to the technical field of coatings. The material comprises, by weight, 15-25 parts of polyacrylic resin, 12-20 parts of polyamide resin, 20-35 parts of vegetable fibers, 8-13 parts of ceramic fibers, 5-12 parts of seashell powder, 7-15 parts of diatomaceous earth, 4-10parts of glass beads, 5-12 parts of expanded perlite, 10-18 parts of silica gel particles, 4-9 parts of nanometer titanium dioxide, 3-7 parts of nanometer magnesium oxide, 2-5 parts of nanometer molybdenum oxide, 2-5 parts of nanometer titanium nitride, 3-7 parts of peppermint essential oil, 4-7 parts of activated carbon, 5-10 parts of a plant regulator, 1.3-2.5 parts of a foaming agent, 2.4-3.8parts of a flame retardant, 1.4-2.6 parts of a plasticizer, 1.8-3.2 parts of an anti-aging agent and 30-45 parts of a 25 wt% ethanol solution. The material has the advantages of good aging resistance,no formaldehyde substances, greenness and environmental protection.

The invention relates to a preparation method for a glass coating liquid which is prepared by utilizing the sol-gel method, and has ultraviolet shielding function and high visible light transmittance. The preparation method comprises the following steps: 2-methyl-5-azomycin-1-ethanol is added into the process of using the sol-gel method for preparing the coating liquid, wherein, the concentration of 2-methyl-5-azomycin-1-ethanol is 0.01 g/L-5 g/L compared with the total amount of the glass coating liquid; and the prepared glass coating liquid is enabled to have ultraviolet shielding function and good light stability through the interaction of 2-methyl-5-azomycin-1-ethanol and silicon dioxide. The ultraviolet transmittance and the visible light transmittance of the glass coating liquid are adjusted by regulating the concentration of the 2-methyl-5-azomycin-1-ethanol in a glass coating liquid system. The prepared glass coating liquid has the ultraviolet shielding function, and has the advantages of ultraviolet obstruction, high transparency, simple preparing process, low cost, good light stability, and the like.

The invention discloses a method for preparing an insulating antistatic high-reflectivity waterborne coating which is composed of the following components: an epoxy resin, 4-dimethyl aminopyridine, graphene oxide, terpene phenolic resin, acrylic acid, ethylene glycol, butyl acrylate, hydroxy calcium phosphate, magnesium hydroxide whisker, pure water, triethanolamine, polyacetylene, vinyl ester resin, sodium acetate trihydrate, an ethylene glycol aqueous solution, thioacetamide, zinc sulfide, potash, a curing agent, a dispersing agent, a defoamer and a leveling agent. The waterborne solvent coating disclosed by the invention is free of volatile organic compound, compared with other coatings, the coating is small in pollution to the environment and high in reflectivity, and not only can assist a lamp to emit strong and bright light, but also has stable and excellent high reflectivity, and the high-reflectivity waterborne coating additionally has excellent impact resistance and flexibility, is very good in corrosion resistance and ultraviolet resistance and is also simple and convenient to use.

The invention provides an ultraviolet-proof adhesive for a glass functional film. The adhesive has excellent ultraviolet shielding function and comprises components by weight as follows: 44%-49% of a pressure-sensitive adhesive, 2.4%-2.7% of an ultraviolet absorber and 48%-54% of a solvent, wherein the ultraviolet absorber comprises mono(hydroxyphenyl)triazine compound and tris(hydroxyphenyl)triazine compound in a weight ratio of 1 : (1.7-2.2). According to the adhesive, the tris(hydroxyphenyl)triazine compound which has excellent shielding capacity on the whole ultraviolet band is selected and matched with a special proportion of mono(hydroxyphenyl)triazine compound to serve as the ultraviolet absorber, so that under the conditions of small addition amount of the ultraviolet absorber and thin coating, the obtained adhesive has the same ultraviolet shielding capacity as an adhesive only adopting the tris(hydroxyphenyl)triazine compound, accordingly, not only the cost of the adhesive is reduced greatly, but also lower yellow index is realized, and the ultraviolet-proof adhesive is particularly suitable for functional films of light transmitting glass of a building or a vehicle.

The present invention relates to a functional SFS nonwoven fabric with characteristics of ultraviolet ray resistance, permeation resistance and moisture permeation. The functional SFS nonwoven fabric is characterized in that the functional SFS nonwoven fabric is formed by compounding an upper surface layer (1), a microporous moisture permeation film layer (2) and a lower surface layer (3), wherein the upper surface layer (1) and the lower surface layer (3) are made from polypropylene, and the microporous moisture permeation film layer (2) is made from a polyethylene and calcium carbonate mixing material. According to the present invention, the upper surface layer and the lower surface layer use the spunbond nonwoven fabric layers so as to ensure a certain strength, good tear resistance and good abrasion performance; the middle layer uses the microporous moisture permeation film so as to ensure good permeation resistance and good moisture permeation; and the upper layer spunbond cloth and the lower layer spunbond cloth are subjected to ultraviolet ray post-finishing processing so as to provide the anti-ultraviolet ray function, such that the SFS material has the anti-ultraviolet ray function.

The invention discloses a hybridized aerogel material with self-cleaning, heat-insulation and wave-absorbing multi-function. The hybridized aerogel material is prepared from the following raw materials: in percentage by weight, tetraethoxy titanium, absolute ethyl alcohol, acetone, nitric acid, ammonium hydroxide, tetraethoxysilane, trimethylethoxysilane, a potassium hydroxide solution, a sodium nitrate solution, a ferrous sulfate solution, N-ethyl morpholine and pure water. The micron-sized roughness of the aerogel honeycomb structure and the nanoscale roughness caused by Fe3O4 particles caneffectively reduce the water-solid contact area, and the material presents the good hydrophobicity, and can achieve self-cleaning effect. Because the aerogel is filled with a great amount of air whilethe solid phase proportion is relatively less, the pyroconductivity is low, heat transmission is remarkably reduced due to random distribution of air vents, therefore the aerogel material has the good heat insulation property, and can achieve the excellent infrared stealth function. The hydrophobicity of the aerogel avoids the situation of decreasing heat insulation property caused by invasion ofmoisture in the environment, so that the material can be applied to the harsh environment, and has the outstanding comprehensive properties of high adsorption and low weight.

The invention discloses an uvioresistant heat dissipation dope for meter housings and a preparation method of the uvioresistant heat dissipation dope. The uvioresistant heat dissipation dope is made from the following materials in parts by weight: 30-35 parts of diphenol propane epoxy resin, 12-15 parts of aniline formaldehyde resin, 4-5 parts of ethenyl triamine DETA, 2-3 parts of aminoethyl piperazine AE, 4-6 parts of fatty glyceride, 10-14 parts of xylene, 10-12 parts of propylene glycol, 16-19 parts of ethyl acetate, 1-2 parts of catechol, 20-23 parts of aluminum nitride powder, 1-2 parts of nanometer titania, 3-5 parts of silane coupling agent and 5-6 parts of film forming assistant. By adding aluminum nitride powder, the dope has high heat conduction rate and good heat dissipation effect; by adding nanometer titania, the dope has excellent function of shielding ultraviolet and is not easily subjected to light aging; the dope has good lubricity, is easily applied, has large adhesive property, does not easily fall, is antibacterial and has good heat resistance.

The invention discloses a microcellular-foaming high-strength anti-aging PA/PETG composite plastic well lid and a preparation method thereof. According to the invention, a PPA/PETG composite materialis used as matrix resin, an anti-aging composite foaming agent, namely an embedded halloysite nanotube surface loaded with TiO2 and a reinforcing material, namely a dendritic calcium carbonate whiskermaterial are added, the special tubular structure of halloysite is utilized, a p-toluenesulfonylaminourea foaming agent is embedded into the inner wall of the nanotube, and TiO2 with an excellent ultraviolet shielding function is loaded on the surface of the nanotube, so uniform foaming in the well lid can be realized, the weight of the well lid is effectively reduced, and the ageing resistance of the well lid can also be improved; and crystalline flake graphite is used as a matrix template, calcium carbonate whiskers are synthesized through a liquid phase reaction method and attached to thesurface of crystalline flake graphite to form the dendritic structure reinforcing material, reinforcing effect on the well lid is achieved by means of anisotropy of the calcium carbonate whiskers on the surface of the crystalline flake graphite, interlayer slippage of the crystalline flake graphite and other characteristics, and the defect that the strength of the well lid is reduced due to foaming is overcome.

The invention discloses a preparation method of an insulating and flame-retardant electric meter box shell material. The invention belongs to the technical field of polymer materials. The preparationmethod of the insulating and flame-retardant electric meter box shell material has a wide range of raw materials and a simple preparation method. Through the blending modification and filling modification of dicyclopentadiene and vinyl ester resin, flame retardance and strength of the materials are improved, the materials have good electrical performance, reactive polymerization with an extruder is adopted, then centrifugal casting and compression moulding forming are carried out, preparation efficiency is high, the requirement of the equipment cost is low, the prepared insulating and flame-retardant electric meter box shell material further has outstanding impact resistance, flexibility and heat resistance, and use safety of the shell material is higher.

The invention provides a method for preparing nano powder with a strong ultraviolet absorption function. The method comprises the following steps: mechanically pulverizing metal oxides, and carrying out ultrasonic high-speed atomization; carrying out airflow pulverization and surface modification, thus finally obtaining a product. The zinc oxide, the cadmium oxide, the titanium dioxide and the tin dioxide used by the method for preparing the nano powder with the strong ultraviolet adsorption function have a good ultraviolet shielding function, also has the advantages of no stimulation to skin, no decomposition, no degeneration, and good thermal stability, and can be widely used in cosmetics, plastics, textiles and other industries.

The invention discloses a preparation method of a paper-based packaging material with an ultraviolet shielding function. The preparation method comprises the steps of S1, preparing a composite biological enzyme agent; S2, preparing a mixed pulp board from 70-80 parts by weight of softwood pulp boards and 20-30 parts by weight of hardwood pulp boards, adding the mixed pulp board into a pulper, thenadding the composite biological enzyme agent which is 500ppm-1000ppm relative to the weight of the absolute dry pulp board, and defibering for 5-30 minutes to obtain mixed pulp; S3, feeding the mixedpulp into a refiner, and pulping until the pulping degree is 20-45 degrees SR when the pulping concentration is 3%-4%; and S4, sequentially carrying out dilution, screening, purification, net forming, squeezing and drying processes on the paper pulp to obtain raw paper, then putting the raw paper in a vacuum environment to discharge air in pores of the raw paper, carrying out coating treatment onthe surface of the raw paper by using an ultraviolet shielding material, drying at the temperature of 60-100 DEG C after coating, and standing for 1-8 seconds to obtain a finished product. Accordingto the invention, the paper-based packaging material not only has beneficial ultraviolet shielding capability, but also has good strength and excellent physical properties.

The invention provides anti-ultraviolet high-flame-retardant yacht leather comprising a leather basic layer and a finishing agent coated on the leather basic layer. The leather basic layer is non-woven cloth obtained after sizing. The finishing agent is prepared from acid nigrosine crystals, pupa casein, dioctyl isophthalate, nipagin, borax, ammonia water, water, carbon black, benzoic acid high-carbon alcohol ester, dimethyl aminophenol octyl benzoate, 4-tert-butyl-4'-methoxy-dibenzoylmethane, cetanol and tris(2,3-dibromopropyl)phosphate. The leather can be applied to a yacht, and has effective anti-ultraviolet capacity and excellent ultraviolet shielding performance, and accordingly a greased leather sample can be endowed with a good ultraviolet shielding function. Meanwhile, the leather has a good flame-retardant effect, cannot be combusted easily after making contact with open fire, and effectively improves use safety of the yacht.