285 results about "Ultraviolet protection" patented technology

The invention relates to the technical field of solar cells, in particular to a pyridinium compound doped perovskite solar cell and a preparation method thereof, a perovskite layer of the cell comprises Pb < 2 + > and a pyridinium compound doped in the perovskite layer, and the molar ratio of the pyridinium compound to the Pb < 2 + > is 1: 500-3: 250. By doping the pyridinium compound and Pb < 2 + >, the perovskite solar cell constructs a four-dimensional synergistic interaction mechanism of defect passivation, ultraviolet protection, energy conversion optimization and environmental protection. The M molecule not only solves the key problem that the perovskite material is easy to be damaged by ultraviolet and influenced by surface defects, but also provides a new solution for improving the comprehensive performance of the solar cell by improving the light utilization rate and the environmental tolerance. The preparation method of the M-doped perovskite solar cell provided by the invention is simple in process, easy to operate and beneficial to large-scale production.

The invention belongs to the field of functional textile materials, and provides a cool-feeling anti-ultraviolet nylon fabric and a preparation method thereof, and the cool-feeling anti-ultraviolet nylon fabric adopts a design scheme of combining a boron nitride / titanium dioxide composite filler with a beta-hydroxyl ether type ultraviolet absorption silane coupling agent surface modification technology. Uniform loading of hexagonal boron nitride on the surface of anatase type titanium dioxide is realized through an in-situ heat treatment process, a composite structure with heat conduction and ultraviolet shielding functions is constructed, and a complete process flow of master batch preparation, melt spinning, weaving, after-treatment and the like is matched; the ultraviolet protection coefficient UPF of the fabric is not lower than 40, the UPF retention rate after 20 times of household washing cycles is not lower than 80%, and the cool feeling qmax at the contact moment is not lower than 0.20 W / cm, the technical problem that an existing nylon fabric is insufficient in ultraviolet resistance and cool feeling function is solved, and the fabric has wide industrial application value.

The invention discloses an anti-ultraviolet waterproof fabric for a casual cap, belongs to the technical field of fabric processing, and is used for solving the technical problem that the waterproof performance and the anti-ultraviolet performance of a fabric for a cap in the prior art need to be further improved. The inorganic cross-linking agent comprises the modified polyurethane layer, the anti-ultraviolet hydrophobic layer and the moisture-permeable lining layer, amino on the surface of the inorganic cross-linking agent serves as a cross-linking group to promote cross-linking of polyurethane chain segments, and the ultraviolet protection effect of the inorganic cross-linking agent and the anti-ultraviolet modified polyurethane and modified liquid cooperate to improve the anti-ultraviolet capacity of the material; the process of electrostatic spinning is promoted, the waterproof performance of the material is remarkably improved through cooperation of the hydrophobic group modified polyurethane and the modification liquid, the adsorption-transfer-desorption process of moisture is formed by the hydrophilic pore channel structure of the lining moisture-permeable layer and the external hierarchical structure, moisture discharge is promoted, and the moisture permeability of the fabric is remarkably improved.

The present invention relates to the technical field of aromatic polyamide fiber spinning aids, and specifically relates to a light aging resistant sizing agent for aramid fibers, an anti-ultraviolet aramid fiber and a preparation method thereof. The light aging resistant sizing agent includes a spinning sizing agent, an anti-ultraviolet aging agent and a coupling agent; the anti-ultraviolet aging agent includes inorganic nanoparticles and organic ultraviolet stabilizers. The preparation method of the anti-ultraviolet aramid fiber is as follows: perform an oiling operation on the para-aramid fiber, and then perform heating to achieve thermal crosslinking to obtain the anti-ultraviolet aramid fiber. By adding inorganic nanoparticles and organic ultraviolet stabilizers to the spinning sizing agent and fixing them on the fiber surface through a thermal crosslinking reaction, the present invention forms an anti-ultraviolet aging protection layer that can exert an ultraviolet protection effect, which can well solve the problems of poor anti-ultraviolet performance of para-aramid fibers and accelerated oxidation and degradation of polymer chains under ultraviolet light, and can also meet the requirements for fiber properties such as stretching and wear resistance in subsequent processes.

The invention relates to a polyvinyl alcohol derivative with ultraviolet protection performance and high transparency and a polyvinyl alcohol-based film. The invention also relates to a preparation method of the polyvinyl alcohol derivative and the polyvinyl alcohol film. The polyvinyl alcohol is modified and endowed with intrinsic ultraviolet protection performance, so that the polyvinyl alcohol derivative with the intrinsic ultraviolet protection performance is obtained, and the polyvinyl alcohol film obtained by utilizing the polyvinyl alcohol derivative has the ultraviolet protection performance and high transparency.

The invention belongs to the technical field of cosmetics, and particularly relates to a lipidosome composite microemulsion sun-screening agent, a preparation method thereof and application of the lipidosome composite microemulsion sun-screening agent in cosmetics. According to the invention, by selecting specific chemical sun-screening agents for matching, full-wave-band ultraviolet protection is realized, and the sun-screening effect is improved; a specific solid lipid matrix is selected, a chemical sun-screening agent is dispersed in a lipid bilayer by using a coating technology, irritation caused by direct contact with skin is reduced, meanwhile, release of the sun-screening agent is delayed, long-acting sun-screening and light stability are improved, and a product formed by combining with a specific preparation method is smaller in particle size, more uniform in component distribution and higher in stability. Therefore, a uniform film layer is formed on the surface of the skin and is tightly attached to the skin, penetration of ultraviolet rays is reduced, and the skin feeling light effect and the film-forming property at high temperature are improved. The sun-screening agent disclosed by the invention has the advantages of efficient ultraviolet protection, excellent stability and good skin feeling, and a new technical scheme is provided for the field of sun-screening cosmetics.

The invention relates to the technical field of aromatic polyamide fiber spinning assistants, in particular to an aramid fiber anti-light-aging oil agent, an anti-ultraviolet aramid fiber and a preparation method, and the anti-light-aging oil agent comprises a spinning oil agent, an anti-ultraviolet-aging agent and a coupling agent; the anti-ultraviolet aging agent comprises inorganic nanoparticles and an organic ultraviolet stabilizer. The preparation method of the anti-ultraviolet aramid fiber comprises the following steps: oiling para-aramid fiber, and then heating to realize thermal crosslinking to obtain the anti-ultraviolet aramid fiber. The inorganic nanoparticles and the organic ultraviolet stabilizer are added into the spinning oil agent, and the spinning oil agent is fixed on the surface of the fiber through a thermal crosslinking reaction, so that an anti-ultraviolet aging protection layer capable of playing an ultraviolet protection effect is formed; the problems that the para-aramid fiber is poor in anti-ultraviolet performance and macromolecular chains accelerate oxidative degradation under ultraviolet light can be well solved, and the requirements of subsequent procedures for fiber performance such as stretching and wear resistance can be met.

The application belongs to the technical field of solar cells, and relates to an ultraviolet cutting adhesive film layer and a preparation method thereof, a perovskite solar cell module, a photovoltaic module and a photovoltaic system. The preparation method comprises the following steps: diluting ultraviolet curing adhesive by using an organic solvent to obtain an ultraviolet protection liquid; coating the ultraviolet protection liquid on one side surface of a light-entering surface of the perovskite solar cell module; and performing ultraviolet curing on the obtained ultraviolet protection wet film to obtain the ultraviolet cutting adhesive film layer. In the application, the diluted ultraviolet curing adhesive is used as a coating liquid and is coated on the light-entering surface of the perovskite solar cell module. The subsequent ultraviolet curing process can be performed at low temperature and low power, potential damage to a functional layer of the perovskite solar cell caused by preparation of the film layer under long-time high-temperature conditions is avoided, and thus the influence of the ultraviolet curing conditions on the module in the preparation process is effectively improved and the stability of the module under ultraviolet light in the operation process is enhanced.

Provided is a cosmetic which has excellent water resistance and is capable of achieving a high ultraviolet protection effect. A cosmetic containing (A) an oil-soluble film-forming agent, (B) a water-soluble film-forming agent, (C) an oil-soluble thickening agent, (D) an ultraviolet absorber, (E) an oil component, and (F) water.

The utility model discloses safety head equipment for a water area. The safety head equipment comprises a fully-coated protective helmet made of a high-strength material, waterproof glasses are connected to the front of the protective helmet in a magnetic attraction mode, a first waterproof rubber ring is arranged on the edge of the inner side of the waterproof glasses, and an ultraviolet-proof coating is arranged on lenses of the waterproof glasses; the rear portion of the protective helmet is connected with an earphone support in a magnetic attraction mode, and waterproof earphones are connected to the positions, corresponding to ears, of the earphone support. The protective helmet is in magnetic connection with the waterproof glasses and the earphone support, and the waterproof earphones are connected to the positions, corresponding to the ears, of the earphone support, so that the protective helmet, the waterproof glasses and the waterproof earphones are integrally arranged, use convenience can be improved, meanwhile, the protective helmet is connected in a magnetic mode, connection is stable and not prone to falling off, impact resistance is improved, and the service life of the protective helmet is prolonged. And the ultraviolet-proof coatings are arranged on the lenses of the waterproof glasses, so that the ultraviolet protection of the eyes is realized.

The present disclosure relates to compositions including 2,4-bis-{[4-(2-ethyl hexyloxy)-2-hydroxy]-phenyl}-6-(4-methoxyphenyl)-1,3,5-triazine and at least one active agent, as well as to methods of making and using such compositions.

The invention provides a protection enhancement film capable of simultaneously realizing ultraviolet protection and atomic oxygen protection and enhancing the transmission performance of light in a required light transmission enhancement wave band or the reflection performance of light in a required reflection enhancement wave band, and a preparation method of the protection enhancement film. The protective reinforcing film contains a polyimide resin, a siloxane compound, and an anti-ultraviolet compound selected from the group consisting of an ultraviolet absorbent and an ultraviolet cut-off agent, and has at least one layer. Wherein the thickness of the outermost layer is 1 / 4 or odd times of the wavelength of incident light of a required light transmission enhancing wave band in the layer of medium, or 1 / 2 or integer times of the wavelength of incident light of a required light reflection enhancing wave band in the layer of medium. The protective reinforced film is suitable for being used as a film for a spacecraft photoelectric device.

The manufacturing method of the glass protective film of the present invention includes: forming a metal coating layer on a first side of a base film; forming a scratch-resistant layer on the metal coating layer; forming an anti-ultraviolet layer on a second side of the base film; and forming a peelable layer on the anti-ultraviolet layer. The protective film obtained by the present invention has good film-substrate adhesion, heat insulation, scratch and abrasion resistance, and ultraviolet protection. This manufacturing method is simple, easy to implement, and low-cost, making it suitable for widespread application.

The application discloses a polyurethane emulsion sunscreen film and a preparation method thereof. The sunscreen agent is surface grafted and modified by a silane coupling agent, so that the sunscreen agent is connected with a polyurethane molecular chain in a covalent bond, thereby solving the problem of weak interface bonding force and easy falling in traditional physical blending. On this basis, the molecular structure of the polyurethane matrix is ingeniously designed, and the grafted sunscreen agent is actively guided to migrate and enrich on the surface of the coating in the emulsion film forming process. The "surface enrichment" structure makes the sunscreen agent concentrate on the surface of the ultraviolet light, realizes the maximization of the function, and thus a high ultraviolet protection factor is obtained under a low addition amount. Meanwhile, the internal matrix can keep its flexibility and mechanical integrity due to the avoidance of a large amount of filler filling, and the chemical bonding on the surface ensures the long-lasting and wash-resistant sunscreen function, so that the synergistic effect of high efficiency, durability and mechanical performance balance is finally achieved.

Disclosed in the present invention an ultraviolet-protective cellphone screen protector, and a testing method therefor. The cellphone screen protector comprises: an ultraviolet-protection screen protector body, and a protective release plate attached onto a surface of the screen protector body, wherein the protective release plate contains an ultraviolet responsive color-changing material, and the area of the protective release plate is greater than the area of the screen protector body, such that at least part of the protective release plate is not covered by the screen protector body. The testing method comprises: directly placing a screen protector body with a protective release plate in sunlight or other ultraviolet light sources for irradiation, wherein the color of the part of the protective release plate that is not covered by the screen protector body changes, and the color of the part of the protective release plate that is covered by the screen protector body does not change since the screen protector body has a capability of ultraviolet protection. In the present invention, an ultraviolet-protection testing function is directly integrated in a cellphone screen protector product; during testing, it is not necessary to separate a protective release plate from a screen protector body, and therefore no damage is caused to the product, and sales of the product are not affected; in addition, consumers can directly observe the ultraviolet-protection effect of the product.

The present invention discloses a method for preparing sunscreen fibers with aluminum and cerium co-doped zinc oxide quantum dots. By utilizing the local surface plasmon resonance of metal oxides to enhance the emissivity of the polymer substrate, a relatively high radiation cooling power is obtained. At the same time, the co-doped zinc oxide quantum dots have a relatively high ultraviolet absorption rate. Through a special shear oscillation melt extrusion process, the uniform dispersion of zinc oxide in nylon fibers is achieved. When the prepared fibers are irradiated by sunlight, the measured value of UPF is greater than 50, and the transmittance of UVA is less than 5%, meeting the requirements of ultraviolet protection products. In addition, when irradiated by the sun, the maximum temperature difference between the inside and outside of the zinc oxide nylon fibers reaches 4°C, showing an obvious cooling effect. The present invention has wide applications in sunscreen clothing.

The invention relates to the technical field of Pickering emulsion preparation, and discloses a functionalized mesoporous silicon particle, a Pickering emulsion as well as a preparation method and application of the Pickering emulsion. The functionalized meso-porous silicon particles comprise meso-porous silicon particles and silicon dioxide shell layers coating the surfaces of the meso-porous silicon particles; wherein an ultraviolet filtering agent is loaded in the meso-porous silicon particles. The functionalized meso-porous silicon particle provided by the invention not only reduces free radicals generated by photodegradation of an ultraviolet filtering agent by 89.3%, effectively overcomes the contradiction of'protection-damage 'in traditional ultraviolet protection, but also reduces the wettability of the particle from 114.7 degrees to 89.6 degrees, so that the particle has excellent emulsion stability and ultraviolet shielding function, and meanwhile, the functional meso-porous silicon particle can be applied to the field of ultraviolet protection. The secondary silicon layer packaging also reduces the leakage of the ultraviolet filtering agent; when the functionalized meso-porous silicon particle is used as an emulsifier for preparing a Pickering emulsion carrying a photosensitive active matter, a corresponding ultraviolet filtering agent is matched aiming at a sensitive wave band (UVA or UVB) of the photosensitive active matter, so that customized and high-efficiency light protection is realized.

Provided herein is a mild, natural, sustainable, silicon-free, waterless, solid hair color protection and UV protection composition comprising of p-methoxy cinnamidopropyl behenyl dimethyl ammonium chloride, one or more structuring agent like fatty alcohol, natural conditioning agents like butters, natural vegetable / fruit / nut oil and its corresponding esters. The pH of the solid hair color protection composition is 3.5 to 5.5.

The invention relates to sunglasses glass which comprises borosilicate glass and is characterized in that Fe2O3 accounting for 2-10wt% of the weight of the borosilicate glass is added into the borosilicate glass; the borosilicate glass is mainly prepared from the following raw materials in percentage by weight: 40 to 60 percent of SiO2, 10 to 30 percent of B2O3, 5 to 20 percent of Na2O and 1 to 10 percent of Al2O3. The borosilicate glass has the advantages that Fe2O3 is doped in the borosilicate glass, so that the absorption capacity of the glass to ultraviolet rays is improved, and the protection effect of sunglasses is enhanced; the body of the glass absorbs ultraviolet rays, additional coating is not needed, the durability is improved, and the problem of stripping or color fading is avoided; the glass has excellent ultraviolet protection performance and mechanical strength and is suitable for sunglasses glass, and the ultraviolet transmittance of the sunglasses glass at 0-400 nm is 0.

The utility model provides a protective Low-E glass structure with an optical filter, which comprises an outer frame, a first Palm plate layer, a metal protective frame and a Low-E glass base layer are sequentially arranged in the outer frame, a plurality of hollow parts are formed on the metal protective frame from top to bottom, and a second Palm plate layer is fixedly arranged in each hollow part; a decorative filter sheet layer and an infrared reflecting film layer are sequentially arranged on one side surface, close to the Low-E glass base layer, of each second Pall plate layer; a low-dispersion layer is arranged on one side surface, close to the metal protection frame, of the second Palm plate layer; an ultraviolet protection layer and a first PVB film layer are sequentially arranged on the side face, close to the metal protection frame, of the first Palm plate layer, and an antireflection film layer is arranged on the side face, away from the metal protection frame, of the first Palm plate layer. A first anti-oxidation film layer, a sound insulation film layer, a second PVB film layer and a hydrophobic SiO2 film layer are sequentially arranged on one side surface, close to the metal protection frame, of the Low-E glass base layer. Good decoration and protection functions are realized.

An objective of the present invention is to provide an emulsion cosmetic having the innovative, unprecedented property in which the ultraviolet protection effects do not decrease, and conversely increase, due to heat applied in a usage environment. The present invention pertains to an emulsion cosmetic comprising (A) an ultraviolet protectant, (B) a prescribed alkylene oxide derivative, and (C) an ester oil.

The invention belongs to the field of active ingredient extraction, and particularly relates to a preparation method of a lotus seed shell extract with an anti-ultraviolet function, an obtained product and application. The method comprises the following steps: inoculating lotus seed shell powder with a fermentation inoculant and betaine for fermentation; sterilizing and centrifuging the fermentation liquor, and respectively collecting supernate and precipitate; and carrying out ultrasonic extraction on the precipitate by adopting absolute ethyl alcohol, and concentrating to obtain the lotus seed shell ethanol extract. The extraction method provided by the invention is high in extraction efficiency, the free radical scavenging effect of the extract can be improved through fermentation treatment, and the extraction efficiency is high; the method can reduce the damage to compounds in the extraction process, the content of the extracted active ingredients is high, and the development of the biological functions of the lotus seeds is facilitated; according to the ultraviolet protection combined product prepared by the invention, through an internal and external combined protection mode, the external barrier of the skin to ultraviolet rays is improved, the internal antioxidant capacity of the skin is enhanced through oral administration, and comprehensive protection on the skin is realized.

The invention discloses a heat-insulating and ultraviolet-proof protective film and a preparation method thereof, the protective film comprises a heat-insulating and ultraviolet-proof layer, and the heat-insulating and ultraviolet-proof layer comprises the following components: 15-30 parts of fluorinated polyether acrylate; 5 to 15 parts of polyether block amide elastomer; 0.1 to 2 parts of reduced graphene oxide; 0.5 to 3 parts of perfluorodecyl triethoxy silane; 1-8 parts of hydroxylated zinc oxide quantum dots; 2 to 10 parts of a benzotriazole derivative; 0.5 to 5 parts of nano cellulose; 0.1-1 part of a rare earth beta nucleating agent; 20 to 40 parts of a waterborne polyurethane dispersion; 0.5 to 3 parts of a photoinitiator; 1-5 parts of a cross-linking agent; and 50-150 parts of an organic solvent. According to the protective film, through the cooperation of the fluorinated polyether acrylate and the polyether block amide elastomer, the surface energy is relatively low and the stain resistance is excellent while high light transmission is maintained, and the graphene and the quantum dots form a three-dimensional heat conduction-scattering network, so that the infrared radiation reflectivity is improved.

The utility model relates to the technical field of water supply pipes, in particular to a multifunctional PE water supply pipe which comprises a water supply pipe body, the inner wall of the water supply pipe body is coated with a high-density polyethylene coating, the outer surface of the water supply pipe body is fixedly connected with a reinforcing layer structure, and a filtering structure is arranged on the upper portion in the water supply pipe body. And an anti-ultraviolet protection layer is arranged on the outer surface of the enhancement layer structure. According to the multifunctional PE water supply pipe, the high-density polyethylene coating on the inner wall guarantees water quality purity and reduces water flow resistance, the filtering structure can intercept impurities, adsorb peculiar smell and purify water quality, diversified water use requirements are met, the reinforcing layer structure effectively resists construction collision, soil extrusion and other external force, pipeline damage is prevented, and the service life of the pipeline is prolonged. The anti-ultraviolet protection layer isolates ultraviolet rays and delays aging of the pipe, all the parts have a synergistic effect, the water supply quality and the pipeline durability are remarkably improved, and the water supply pipe is suitable for complex environments and various scenes.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a tough bio-based nanocomposite material and a preparation method thereof. The tough bio-based nano composite material disclosed by the invention is prepared from the following components in parts by weight: 90 parts of ethyl cellulose, 10 parts of polyvinylpyrrolidone and 3 to 9 parts of SiO2 hybrid nano particles. The tough bio-based nano composite material has excellent mechanical strength, ductility, hydrophobicity, ultraviolet barrier property, antibacterial property, ammonia-sensitive discoloration property and the like, is simple in preparation process, environment-friendly, low in cost and suitable for large-scale production, and has wide application prospects. The method has wide application value in the fields of food packaging, intelligent materials, antibacterial materials, ultraviolet protection, ammonia gas detection, environment monitoring, safety and the like.

A water-type or oil-in-water type cosmetic provided with a watery feeling in use and high ultraviolet protection ability. The water-type or oil-in-water-type cosmetic according to the present invention is characterized by containing (A) a porous spherical powder having an average particle size of 1 to 4 μm and an oil absorption rate of 160 ml / 100 g or lower; and (B) an ultraviolet absorption agent.

The purpose of the present invention is to provide a film-forming agent for application which contains an oil-soluble ultraviolet absorber and is capable of forming a film that exhibits excellent ultraviolet protection performance.　A film-forming agent for application according to the present disclosure contains a first agent containing a crosslinkable component as a constituent of a film and a second agent containing a catalyst for crosslinking the crosslinkable component. The first agent and / or the second agent contains an unsaturated organopolysiloxane having a phenyl group and a vinyl group. The first agent and / or the second agent containing the unsaturated organopolysiloxane having a phenyl group and a vinyl group contains an oil-soluble ultraviolet absorber. In the unsaturated organopolysiloxane having a phenyl group and a vinyl group, the ratio of the number of moles of the phenyl group to the number of moles of the vinyl group is 0.40 or less.

A skin care composition that includes from about 0.01% to about 50% by weight of the composition, of water-soluble or water-dispersible UV-blocking active, from about 0.1% to about 50% by weight of the composition, of a wax having a melting point of from about 68° C. to about 95° C. and having an average particle size in the composition of from about 100 nm to about 100 microns, and from about 0.1% to about 20% by weight of the composition, of a particulate UV filter. The skin care compositions can provide improved UV protection, while providing good skin feel.

The application discloses an ultraviolet light curing glass fiber tube ultraviolet protection film packaging equipment, relates to the technical field of ultraviolet light curing, and comprises a rack, a protection film body and a glass fiber tube body, the inside of the rack is fixedly connected with a first table plate, the inside of the rack is provided with a conveying device used for driving the protection film body, one side of the rack is provided with a hot pressing device used for realizing hot pressing of the protection film body and the glass fiber tube body, the bottom of the first table plate is provided with a processing mechanism used for realizing packaging preparation of the protection film body and the glass fiber tube body, and the inside of the rack is provided with an auxiliary mechanism for wrapping the glass fiber tube body. The protection film body is guided to be gathered along a specific path with the help of the gathering column fan-shaped array, the gathered edge of the protection film body is ensured to be seamlessly attached to the glass fiber tube body, after attachment, the L-shaped pressing plate is driven to move by a reciprocating screw rod, the rolling roller is reciprocally rolled on the surface of the protection film body, pressure can be uniformly distributed on the whole gathered edge, and seamless sealing is formed.

The invention discloses a preparation method of a biodegradable synergistic benzotriazole light stabilizer, and belongs to the technical field of high polymer material additives. The method comprises the following three steps: a) carrying out pre-activation reaction on a benzotriazole derivative and anhydride; b) carrying out catalytic grafting reaction on the pre-activated product and hydroxyl-terminated polyester (such as polycaprolactone glycol and polylactic acid glycol, and the number-average molecular weight is 1500-5000); c) carrying out mechanochemical compounding on the grafted product and plant polyphenols (such as tannic acid, quercetin and gallic acid) in a mass ratio of (8-12): 1; through chemical grafting of the benzotriazole light stabilizer and the biodegradable polyester and synergistic compounding of the benzotriazole light stabilizer and the plant polyphenol, the biodegradability and the synergistic effect of the light stabilizer are achieved, and the light stabilizer can be applied to ultraviolet protection of biodegradable plastics and has the advantages of being environmentally friendly and efficient.