241 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 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 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.

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 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.

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.

The present invention provides an oil-in-water emulsion composition that has an excellent ultraviolet protection effect and is pleasant to use. The present invention relates to an oil-in-water emulsion composition comprising component (A): an ionic surfactant, component (B): a hydrophobic amphiphilic substance, component (C): an oil agent that is liquid at 25°C other than component (B), component (D): an inorganic powder, and component (E): water, wherein the content of component (C) in the composition is 17% by mass or more and 50% by mass or less, the content of component (D) in the composition is 1.5% by mass or more, the content of an oil-soluble ultraviolet absorber in the composition is less than 5% by mass, and the average particle size of emulsified particles in the composition is 0.1 μm or more and 0.8 μm or less.

The present invention relates to a UV blocking efficacy booster composition comprising a polymer, and a cosmetic composition comprising same. More specifically, by using a polymer as a cosmetic composition additive, a sticky feeling when used may be reduced, skin permeation may be blocked, a high sun protection factor (SPF) may be realized even with a small amount of a UV blocking agent, and the SPF in vivo may be enhanced.

The present invention relates to a microneedle patch for blocking ultraviolet rays and, more specifically, to a microneedle patch which can be attached to the skin of a user to deliver useful drugs while simultaneously blocking ultraviolet rays.

The dustproof optical lens comprises an optical lens main body and a multi-layer mechanism, the multi-layer mechanism is located in the optical lens main body, and the outer walls of the optical lens main body and the multi-layer mechanism are respectively provided with an outer frame dismounting mechanism in a positioning manner. According to the dustproof optical lens provided by the utility model, the hard coating film prevents scratches and abrasion on the surface of the lens, the dustproof coating film prevents dust from being attached easily, the anti-fog coating layer prevents fog from being formed, the blue light-proof layer absorbs blue light, the polarized light layer effectively filters reflected light, the self-cleaning layer decomposes organic pollutants, and the ultraviolet-proof layer blocks ultraviolet rays. The low-surface-energy layer has low surface energy and can reduce adhesion of other substances on the surface of the low-surface-energy layer, the protective coating film is subjected to hardened film treatment, the hardness of the surface of the lens is improved, the anti-radiation layer filters out part of harmful electromagnetic waves, a user can easily take down the lens for cleaning, and it is ensured that the lens keeps good definition all the time.

The invention belongs to the technical field of textiles, and particularly discloses a passive continuous refrigeration fabric and a preparation method thereof. The fabric comprises a first weaving unit which is arranged on the bottommost layer of the fabric and has a plain weave structure; the second weaving unit is arranged on the upper surface of the first weaving unit and comprises a plurality of groups of parallel wrinkle raised lines; and the third weaving unit is arranged between the first weaving unit and the second weaving unit and connects the wrinkle raised lines with the first weaving unit. The passive fabric capable of continuously refrigerating has good air permeability, an ultraviolet-proof function and a remarkable cooling effect, the air permeability can reach 581 mm / s, the UPF can reach 800 +, the maximum temperature difference can reach 15.1 DEG C, the lasting time of the temperature lower than 27 DEG C is 60 min, the refrigerating time of the fabric is greatly prolonged, and the fabric is beneficial to keeping a cool state of a body.

The invention provides a lightweight high-strength basalt fiber composite material multifunctional electric pole, accessories, a preparation method and application. Through a diamond structure, metal / fiber hybrid reinforcement and a multi-angle laying multi-stage synergistic reinforcement mechanism, the weight is greatly reduced, meanwhile, extremely high mechanical strength is achieved, and the contradiction between light weight and high strength is solved; the integrally-formed ultraviolet-proof layer and the weather-proof modified resin matrix jointly form a dual-protection system, it is ensured that the product can pass a strict ultraviolet aging test, the service life is prolonged, and the service life far exceeds that of a traditional electric pole; the weight is greatly reduced, so that the transportation and installation cost is reduced, installation personnel are reduced, large machinery is not needed, and the construction efficiency is improved by multiple times; due to the high-toughness design, the cable is excellent in performance under severe weather such as typhoon; the use safety is improved due to the insulating and flame-retardant characteristics; the special power distribution system fundamentally solves the problems of gliding, water inflowing and the like in the application of the composite material rod, and high reliability is achieved.

The invention discloses a strong-sun-protection moisture-absorption quick-dry breathable dry elastic fabric and a preparation process thereof, and relates to the technical field of fabrics. The preparation method comprises the following steps: step 1, preparing polyester spandex core-spun yarns by taking polyester yarns with a sun-proof function as sheath yarns and spandex yarns as core yarns; tatting by taking the fabric as warp yarns and weft yarns to obtain a tatted fabric; 2, the woven fabric is sequentially subjected to low-temperature pretreatment with alkali liquor, first cation finishing liquid treatment, sulfonic gelatin finishing liquid treatment and second cation finishing liquid treatment; and performing high-temperature setting to obtain the strong-sun-protection moisture-absorption quick-drying breathable dry elastic fabric. In the application, the covering yarn with the sunscreen property is used as an internal sunscreen layer, and the finishing layer on the surface of the fabric is used as an external sunscreen layer, so that the high-strength ultraviolet protection property of the fabric is synergistically realized; meanwhile, the prepared fabric has excellent moisture absorption and quick drying properties and washing fastness.