120 results about "Ultraviolet protection" patented technology

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 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.

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 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 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 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 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.

The invention relates to an ultraviolet-aging-resistant light composite material, the material comprises a base layer and a functional coating, the base layer comprises a polymer matrix and an elastic microsphere low-temperature anti-cracking agent, and the functional coating comprises water-based resin and hollow anti-ultraviolet particles. The elastic microsphere low-temperature anti-cracking agent is of a multi-layer core-shell structure with a polybutadiene microgel inner core, a POE-g-GMA toughness middle layer and an organic-inorganic hybrid silicon shell, and the hollow anti-ultraviolet particles are hollow silicon dioxide microspheres with ZnO nanocrystals growing on the surfaces. The composite material has excellent lightweight characteristic and mechanical property, the low-temperature crack resistance and impact resistance of the material are remarkably improved by the elastic microsphere low-temperature anti-cracking agent through a multi-energy dissipation mechanism, and the hollow anti-ultraviolet particles provide lasting and efficient ultraviolet protection for a matrix through the synergistic effect of physical shielding and ultraviolet absorption.

The application discloses a kind of breathable far infrared fiber fabric and preparation method thereof, it is related to fiber fabric technical field.The application is prepared when breathable far infrared fiber fabric, phosphorus-containing triamino compound is reacted with double bond modified silane, hydroxypropyl methacrylate, 2-[2-hydroxy-5-[2-(methacryloyloxy) ethyl] phenyl]-2H-benzotriazole to obtain modified liquid;Pre-modified graphene is reacted with 3-bromopropyl-5,5-dimethyl hydantoin to obtain modified graphene;After dispersing modified graphene, fiber, 3-glycidyl ether oxypropyl trimethoxysilane, modified liquid are added, and modified fiber is prepared after reaction;After weaving and spinning modified fiber, soak sodium hypochlorite solution, and prepare breathable far infrared fiber fabric.The breathable far infrared fiber fabric prepared by the application has the advantages of air permeability, far infrared, antibacterial, flame retardant, ultraviolet protection and washing resistance.

The invention relates to the technical field of sealing compounds, in particular to an anti-aging sealing compound and a preparation process thereof. The preparation process of the anti-aging sealing compound comprises the following steps: preparing the core crystal compound, preparing the anti-aging compound additive, and preparing the anti-aging sealing compound. According to the invention, a dual synergistic protection inner core of ultraviolet shielding and free radical capture is constructed, and mesoporous silica coating and organic modification are carried out, so that the dispersibility and interface bonding force of the auxiliary agent in organic colloid are improved; the nano titanium dioxide is added in batches, so that the dispersion uniformity of the nano titanium dioxide is improved, the nano titanium dioxide and the inner core form an anti-aging synergistic system, a continuous ultraviolet protection network is constructed, meanwhile, the bonding strength and flexibility of the sealing adhesive are enhanced, and the long-acting anti-aging life of the sealing adhesive is remarkably prolonged.

The invention relates to the technical field of functional films, in particular to a copper-doped titanium dioxide antibacterial skin-care window film. The problems that an existing window film is low in ultraviolet blocking rate and low in antibacterial rate are solved. The window film is prepared by adding the copper-doped titanium dioxide antibacterial agent and the fluoro-benzophenone acrylate, copper ions are doped in titanium dioxide through anhydrous cupric sulfate, the antibacterial performance is improved, growth and reproduction of bacteria are effectively inhibited, and therefore the situation that due to bacterium breeding, the antibacterial property of the window film is improved, and the service life of the window film is prolonged is avoided. Through the reaction of isophorone diisocyanate, 4-fluoro-4 '-hydroxybenzophenone and acrylic acid-2-hydroxyethyl ester, fluorine atoms and benzophenone groups are introduced into acrylic ester, so that the ultraviolet blocking capability is improved; the window film has excellent ultraviolet-proof and skin-care functions, can effectively protect the skin from being damaged by ultraviolet rays, and has the advantages of broad-spectrum antibacterial property, long-acting stability, environment friendliness, suitability for large-area construction and the like.

An object of the present invention is to provide an oil-in-water sunscreen cosmetic that, while containing a UV protection agent, has a fresh sensation during use and is stable over time, regardless of whether ethanol or a volatile cyclic silicone oil is used.SOLUTION: The above object is achieved by an oil-in-water sunscreen cosmetic comprising the following components (A) to (D): (A) (acrylate / acryloyldimethyltaurate) (C) a water-soluble thickener, and (D) a UV protection agent, wherein a content of the ingredient (A) is from 0.5% by mass to 1.0% by mass, and a ratio of a content of the ingredient (C) to a content of the ingredient (A) [ingredient (C) / ingredient (A)] is 0.4 or less, and the total content of the components (A) to (C) is 1.0% by mass to 2.0% by mass.SELECTED DRAWING: None

The invention provides a synthetic method and application of silk fibroin-based melanin-like nanoparticles, and belongs to the technical field of nanoparticle preparations for biomedicine. After the silk fibroin nanoparticles, tyrosine and a tyrosinase solution are mixed, the silk fibroin-based melanin-like nanoparticles are obtained through a one-pot copolymerization reaction, and the enzyme concentration in the tyrosinase solution is 200-250 U / mL. The synthesis method has the advantages of being simple and convenient to operate, green, environmentally friendly and the like, and the synthesized silk fibroin-based melanin-like nanoparticles have excellent antioxidant activity and ultraviolet protection performance and remarkable skin cell photoaging resistance.

The utility model discloses a kind of composite material anticorrosive steel pipe pole, belong to steel pipe pole anticorrosion technical field, it includes first steel pipe pole and second steel pipe pole, the both ends of first steel pipe pole and second steel pipe pole are fixedly connected with flange ring, the surface of two flange rings is respectively provided with second U-shaped groove and first U-shaped groove, the opposite inner wall of first U-shaped groove is fixedly connected with same slide bar, and the surface of slide bar is slidably connected with slide cylinder, the surface of slide cylinder is fixedly connected with threaded column, and threaded column is movably connected in the inside of second U-shaped groove. Its beneficial effect is, by setting hot melt epoxy powder coating, glass fiber cloth winding layer and polyurethane ultraviolet protection layer, by hot melt epoxy powder coating forming chemical inert barrier, steel pipe pole is resistant to acid and alkali salt corrosion, by glass fiber cloth winding layer to avoid temperature stress cracking, by polyurethane ultraviolet protection layer ultraviolet blocking rate is high, and reduce the rate of dirt adhesion.

The invention relates to the technical field of film materials, in particular to an ultraviolet-proof barrier coating film and a manufacturing method thereof.The ultraviolet-proof barrier coating film comprises a polyethylene glycol terephthalate base material layer, an anchoring layer and an ultraviolet barrier layer, the anchoring layer and the ultraviolet barrier layer are sequentially stacked on the surface of one side of the base material layer, and the anchoring layer is a coating formed by curing a main film forming substrate; the ultraviolet blocking layer is a composite coating containing polyurethane acrylate resin, a photoinitiator, an ultraviolet light absorber, nano zinc oxide and nano montmorillonite. According to the invention, through optimized chemical composition and process parameters, firm interface bonding between layers and a compact network structure are realized, so that a high initial ultraviolet protection coefficient and ultraviolet aging resistance durability are synergistically obtained.

The utility model belongs to the engine cover structure in the technical field of automobile parts, including engine cover body (1), engine cover body (1) is engineering plastics layer, engine cover plate body (1) outer layer surface sets up high temperature resistant coating (2) and / or ultraviolet protection layer (3), engine cover plate body (1) inner layer surface sets up reinforcing rib portion (4), and reinforcing rib portion (4) includes a plurality of reinforcing ribs (5). The engine cover plate body (1) a plurality of reinforcing ribs (5) form reinforcing rib portion (4) of lattice or honeycomb. The engine cover structure of the utility model, simple structure, both realize lightweight design, and have good mechanics performance and heat resistance.

COMPOSITION COMPRISING AN AMPHIPHILE INORGANIC UV FILTER AND POLYOL The present invention relates to a composition comprising: (a) at least one amphiphilic inorganic UV filter, preferably an amphiphilic metal oxide, and more preferably amphiphilic TiO2; and (b) at least one polyol, wherein the amount of (a) the amphiphilic inorganic UV filter in the composition is greater than 6% by weight, preferably greater than 7% by weight, and more preferably greater than 8% by weight, relative to the total weight of the composition. The composition according to the present invention can provide improved UV protection and improved whiteness. Figure for abstract: none

The application provides a synthesis method and application of silk fibroin-based melanin-like nanoparticles, and belongs to the technical field of nanoparticle preparations for biomedical use. After mixing silk fibroin nanoparticles, tyrosine and tyrosinase solution, silk fibroin-based melanin-like nanoparticles are obtained through one-pot copolymerization, and the enzyme concentration in the tyrosinase solution is 200-250 U / mL. The synthesis method has the advantages of simple operation, green environmental protection and the like, and the synthesized silk fibroin-based melanin-like nanoparticles have excellent antioxidant activity, ultraviolet protection and significant anti-skin cell photoaging.

The invention discloses a bio-based polyurethane photo-thermal conversion elastomer as well as a preparation method and application thereof. The elastomer is prepared by taking castor oil and isophorone diisocyanate as substrates, and introducing 4, 4 '-diaminodiphenyl disulfide as a chain extender and polyphenol lignin as a functional filler. The preparation method comprises the following steps: reacting castor oil with isophorone diisocyanate under the action of a catalyst to generate a prepolymer; then sequentially adding 4, 4 '-diaminodiphenyl disulfide and polyphenol lignin according to a specific proportion to carry out chain extension and modification reaction; and finally, pouring the obtained polymer into a mold, and heating, curing and molding. The method is simple in process and mild in condition. The prepared elastomer has a dual dynamic cross-linked network of dynamic disulfide bonds and multiple hydrogen bonds, not only shows good mechanical properties, self-repairability and shape memory effect, but also has excellent photothermal conversion efficiency and ultraviolet barrier ability due to the inherent pi-pi conjugated structure of lignin; the material can be widely applied to the fields of flexible electronics, ultraviolet protection, photo-thermal-photoelectric conversion devices and the like.

The present invention relates to a method for determining UV protection efficacy of functional cosmetics on the basis of AI and, particularly, to a UV protection efficacy determination method comprising: applying functional cosmetics to a subject's skin; subsequently irradiating the skin with UV light; and determining protection efficacy by observing changes in the skin, wherein the observing of the changes in the skin irradiated with UV light is performed through detection of erythema or pigment darkening by an artificial intelligence algorithm from an image obtained by capturing the subject's skin; and the artificial intelligence algorithm performs the detection of erythema or pigment darkening by applying skin tone information calculated from an image obtained by capturing the subject's skin not irradiated with UV light. According to the present invention, UV protection efficacy is determined using artificial intelligence, so that the determination of the UV protection efficacy is objectified, and the reliability of determination results increases. In addition, since the determination process is automated by artificial intelligence, time required for determination can be reduced.

The application discloses a kind of composite nanometer aramid insulation paper with corona resistance and heat conduction performance and preparation and application, and the insulation paper is composed of aramid nanofiber matrix and the first functional filler and the second functional filler uniformly dispersed in aramid nanofiber matrix;The first functional filler is the boron nitride quantum dot treated by surface functionalization;The second functional filler is nano silicon carbide;The mass of boron nitride quantum dot treated by surface functionalization is 1%~15% of the mass of aramid nanofiber matrix, and the mass of nano silicon carbide is 0.5%~8% of the mass of aramid nanofiber matrix.The average particle size of boron nitride quantum dot treated by surface functionalization is 2nm~10 nm.The application solves the problems of lack of ultraviolet protection mechanism, uncontrollable filler distribution, complex process and limited heat conduction in the prior art, and significantly improves the corona resistance and heat conduction performance of the insulation paper through the synergistic effect of electric field regulation, ultraviolet protection and optimized distribution of composite filler.

The present application provides an anti-ultraviolet polydimethylsiloxane food packaging coating and a preparation method thereof, which realizes the dual synergy of anti-ultraviolet and food preservation function through molecular modification, and introduces degradable materials to enhance environmental protection. The coating embeds anti-ultraviolet groups and preservation groups into the polydimethylsiloxane main chain through chemical bonds, avoiding the migration of traditional additives. A one-step in-situ polymerization process is used to ensure uniform distribution of functional groups, solving the problems of uneven function and migration. The coating provides ultraviolet protection, antibacterial, ethylene absorption, water retention, and prolongs the shelf life of food. The coating also uses degradable materials to reduce environmental pollution. It is suitable for outdoor circulation and transparent packaging scenarios, providing an efficient, safe and environmentally friendly packaging solution.

The present application relates to the field of advanced petrochemical chemical new material technology, concretely is a kind of for plastic runway surface weather resistance curing coating and its preparation method, including the following components: modified aliphatic polyurethane resin, modified inorganic filler, weathering aid, functional aid, diluent, nano zinc oxide-polydopamine grafting compound, the components of the present application and preparation process form multidimensional synergistic effect: modified aliphatic polyurethane resin provides stable film formation and interface combination, modified inorganic filler provides mechanical enhancement and structural support, nano zinc oxide-polydopamine grafting compound provides core ultraviolet shielding, weathering aid and functional aid provide auxiliary stabilization and construction optimization.The overall technical scheme systematically improves coating performance from resin molecular structure, filler interface combination, ultraviolet protection mechanism, synergistic aid system and other aspects, so that the obtained curing coating simultaneously has excellent weather resistance, high adhesion, high hardness and good wear resistance.

The application discloses a kind of preparation methods of flame-retardant aging-resistant high-transparency polyurethane, the polyurethane is first with 2-amino-1,3-propanediol, 2-chloro-4,6-diphenyl-1,3,5-triazine, diphenyl phosphorochloridate and triphenylchlorosilane composite preparation DADT, then DADT is mixed with polyether polyol, isocyanate to obtain;The preparation method of the application is simple, the process is easy to control, the obtained polyurethane material limit oxygen index reaches 29.6%, meets commercial flame-retardant standard and reaches UL-94 V-0 flame-retardant grade;Material has excellent aging resistance, heat-oxygen tensile strength retention rate is 88.5%, heat-oxygen breaking elongation retention rate is 77.4%, and ultraviolet breaking elongation retention rate is 71.4%, can be applied to automobile ultraviolet protection diaphragm, flame-retardant filled foam, fire guide sign protection film and the like scene.

To provide a sunscreen cosmetic that offers sufficient UV protection while being non-greasy, maintaining moisture even in low temperature and low humidity conditions, blending well with the skin, and not feeling powdery even on dry skin. [Solution] The sunscreen cosmetic is characterized by containing (A) an ultraviolet scattering agent, (B) a starch-acrylic acid graft polymer salt, and (C) an oil with a melting point of 35°C or higher and 60°C or lower.