47results about How to "Improves UV protection" patented technology

The invention discloses a heat insulation fabric and a preparation method thereof, and relates to the technical field of fabrics. The thermal insulation fabric is prepared by using a magnetic field to assist wet spinning of the modified silicon dioxide aerogel and the polyamide fiber and then oxidizing the acrylic acid at a high temperature; firstly, nano titanium dioxide is prepared through catalysis of modified polyurethane, the mechanical property of silicon dioxide aerogel is improved, and nano titanium dioxide has an excellent anti-ultraviolet effect and can further improve the heat insulation performance of the fabric; secondly, applying a magnetic field to assist the modified silicon dioxide aerogel and the polyamide fiber in wet spinning, and then decomposing acrylic acid at high temperature; the appearance of the nano titanium dioxide can be adjusted by applying a magnetic field, and the ultraviolet protection effect is improved; after the acrylic acid is decomposed, slender nano grooves and holes are left in the fabric, and the slender nano groove structure can increase the contact area between fibers and increase the heat transfer path, so that the fabric has an ultralow heat conductivity coefficient and achieves the effects of heat insulation and ultraviolet prevention.

The invention relates to the field of textile processing, and discloses a polyester knitted fabric flame-retardant finishing method, which is characterized in that modified waterborne polyurethane emulsion is finished on a washed and dried polyester knitted fabric by using a dipping and drying method; the modified waterborne polyurethane emulsion is prepared from isophorone diisocyanate, an amine chain extender, a flame-retardant cross-linking agent, modified nano titanium dioxide and the like, and the amine chain extender is prepared from 2-(2, 4-dihydroxyphenyl)-2H-benzotriazole and 2-chloro-4, 6-diamino-1, 3, 5-triazine through a reaction; the flame-retardant cross-linking agent is prepared from 1, 3, 5-tri (2-hydroxyethyl) cyanuric acid and dimethyl methylphosphonate through a reaction; the modified nano titanium dioxide is prepared from modified silane coupling agent modified nano titanium dioxide hybrid silica sol obtained by reaction of tetramethyldisiloxane and vinyltrimethoxysilane, so that the material is endowed with good flame retardant property, the ultraviolet protection property of the material is improved, and the mechanical property of the material is ensured.

The invention discloses a high-temperature-resistant adhesive tape and a preparation method thereof, and belongs to the technical field of adhesive tape preparation. The adhesive tape is composed of a composite adhesive and a composite polyester film, and the composite adhesive is composed of hydroxyl polydimethylsiloxane, boric acid, 2, 2-bis [4-(4-aminophenoxy) phenyl] propane and 4, 4-bis (4-aminophenoxy) phenyl] propane. The composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide, and the composite polyester film is prepared from polyethylene glycol terephthalate, 1-allylimidazole, 2-bromobutane, potassium hexafluorophosphate, methacryloyloxyethyl trimethyl ammonium chloride and nano silicon dioxide. The adhesive tape prepared by the method has excellent viscosity, high temperature resistance, aging resistance and antistatic property.

The invention discloses an anti-ultraviolet automobile film and a preparation method thereof, and belongs to the technical field of automobile films. The invention relates to a high-temperature-resistant coating which comprises the following components in parts by weight: 80-100 parts of polyethylene glycol terephthalate, 3-5 parts of polyimide, 5-8 parts of a plasticizer, 2-3 parts of a defoaming agent, 1-2 parts of a flatting agent and 20-30 parts of TiO2 / PDA / ZnO (at) MOF. TiO2 is wrapped by polydopamine, agglomeration of TiO2 is prevented, meanwhile, ZnO is wrapped on the outer layer more uniformly due to the adsorption effect on ZnO, and polydopamine also has the antibacterial and light absorption effects; the combination of TiO2 and ZnO can effectively improve the breadth and depth of ultraviolet protection. The prepared automobile film has high transmittance and ultraviolet absorptivity, and a pencil hardness test table has good mechanical properties and good antibacterial rate.

The invention discloses a high-impermeability geomembrane and a preparation method thereof, and belongs to the technical field of building materials. The geomembrane comprises a base material layer and a rough surface layer, wherein the base material layer is prepared from the following raw materials in parts by weight: 45 to 60 parts of polyethylene, 15 to 20 parts of ethylene-vinyl acetate copolymer, 10 to 30 parts of carbon black color master batch, 10 to 15 parts of modified mica sheet, 0.5 to 2 parts of antioxidant and 0.5 to 3 parts of dispersing agent; the modified mica sheet is prepared by the following steps: adding a mica sheet into deionized water, heating and stirring, adjusting the pH value to 5-6, adding a lanthanum chloride solution, continuously stirring and reacting for 2-3 hours, adjusting the pH value to 8-9, adding an anionic surfactant, stirring, centrifugally washing, drying in vacuum to constant weight, grinding and sieving to obtain the modified mica sheet. The geomembrane prepared by the invention has the advantages of high impermeability, good mechanical properties, weather resistance, high temperature resistance, durability and the like, and the preparation method has the characteristics of environmental friendliness, energy saving and time saving.

The invention discloses a textile fabric with an ultraviolet-proof function and a preparation method, the textile fabric is prepared by mutually vertically interweaving warps and wefts, the warps are yarns obtained by blending mulberry silk, natural cotton fibers, polyacrylonitrile fibers and polyester fibers, and the wefts are ultraviolet-proof fiber blended yarns, the ultraviolet-proof fiber blended yarn is formed by blending ultraviolet-proof fibers, antibacterial fibers, modal fibers and polyester fibers. The ultraviolet-proof fibers are blended in the ultraviolet-proof fiber blended yarns, so that the textile fabric can still keep high ultraviolet-proof capacity after being washed for multiple times, the ultraviolet-proof fibers are prepared from polyvinyl alcohol, the adhesion capacity of an ultraviolet-proof additive is improved through the added thickening agent, and the ultraviolet-proof performance of the textile fabric is improved. Due to the addition of the ultraviolet-proof additive, the fabric has certain ultraviolet absorption and blocking capabilities, so that the ultraviolet-proof performance of the textile fabric is improved.

This utility model belongs to the field of power transmission and distribution engineering technology, specifically disclosing an overhead insulated conductor with a reinforced tensile structure. It includes an aluminum conductor, an insulating separator sleeve fitted over the aluminum conductor, an insulating separator sleeve fixedly connected to the outside of the insulating separator sleeve, and a galvanized copper conductor on the outside of the insulating separator sleeve. It also includes reinforcing ribs, fixing blocks, and an outer protective layer for the conductor. The reinforcing ribs are used to improve the tensile strength of the conductor; the fixing blocks are used to fix the internal structure of the conductor. The beneficial effect of this utility model is that by using a non-metallic aramid fiber reinforcing layer and a glass fiber inner protective layer to jointly bear the load, the mechanical tensile function and electrical conduction function of the conductor are separated. The main tensile force is borne by extremely high-strength, extremely lightweight synthetic fibers, enabling the conductor to have a tensile strength and fatigue resistance far exceeding that of traditional steel-cored aluminum stranded wires of the same diameter, while significantly reducing the self-weight of the conductor and the load on the tower.

The invention discloses a formula and a preparation method of a reflective heat-insulating coating for a metal roof, comprising the following raw materials in parts by mass: 50-57 parts of styrene-acrylic emulsion, 12-15 parts of titanium dioxide, 10-15 parts of nano titanium dioxide, 16-18 parts of modified ceramic hollow microspheres, 16-20 parts of deionized water, 2-3 parts of a film-forming aid, 0.3-0.5 parts of a defoaming agent, 0.1-0.3 parts of a preservative, 0.06-0.12 parts of a multifunctional aid, 0.1-0.2 parts of a dispersant, and 0.4-0.6 parts of a thickener. The nano titanium dioxide is rutile nano titanium dioxide that has been surface treated with inorganic substances, and the modified ceramic hollow microspheres are ceramic hollow microspheres that have been modified with nano zinc oxide. The invention can significantly improve the anti-ultraviolet performance of the coating, reduce the damage of ultraviolet rays to the coating, and increase the service life by adding nano-grade titanium dioxide to the reflective thermal insulation coating for metal roofs. By adding modified ceramic hollow microspheres to the reflective thermal insulation coating for metal roofs, the heat transfer inside the building can be effectively reduced and the indoor temperature can be lowered.

The invention relates to a shading ultraviolet-proof tarpaulin material and a preparation method thereof, and belongs to the technical field of tarpaulin materials, and the shading ultraviolet-proof tarpaulin material is prepared by the following steps: combining thiazolopyridine dicarboxylic acid with gallic acid, and then grafting polypropylene glycol monomethyl ether to obtain a plasticizing material; phosphonitrilic chloride trimer is combined with the plasticizing material, and the flame-retardant plasticizing material is obtained; graphene oxide is combined with a flame-retardant plasticizing material, so that an anti-ultraviolet auxiliary agent is obtained; the preparation method comprises the following steps: mixing an anti-ultraviolet auxiliary agent and polyvinyl chloride, melting, plasticizing and extruding, coating the mixture on the upper and lower surfaces of base cloth through curtain coating, cooling, sizing and coiling to finally prepare the shading and anti-ultraviolet tarpaulin material. According to the technical scheme, after the phosphonitrilic chloride trimer is combined with the plasticizing material, the graphene oxide is combined, and the prepared anti-ultraviolet auxiliary agent is added into the polyvinyl chloride, so that the mechanical property and the anti-ultraviolet property of a polyvinyl chloride matrix are improved, the flame retardant property of the polyvinyl chloride matrix is also improved, and the comprehensive performance of the tarpaulin material is overall improved.

The utility model belongs to the technical field of car roof tents, and provides a hard-shell folding car roof tent which comprises a base, folding gable walls symmetrically arranged on the base, heat insulation plates symmetrically arranged on the base, rotating plates hinged to the two heat insulation plates, first hydraulic telescopic rods arranged on the base, and the ends of the first hydraulic telescopic rods arranged on heat insulation plate frames. Second hydraulic telescopic rods are symmetrically arranged on the side edges of the folding gable, and the ends of the second hydraulic telescopic rods are arranged on a rotating plate. The two second hydraulic telescopic rods are controlled by the hydraulic system to dynamically adjust the rotating plate, dynamic adjustment can be achieved according to environmental conditions such as wind power and rainfall, the tent is prevented from being damaged by strong wind impact, and the tent is suitable for outdoor environments in four seasons and can be unfolded when no wind exists, so that the use space is expanded, and the space utilization rate is increased. And the heat insulation cloth is combined with the heat insulation plate composite board, so that the rainproof performance, the ultraviolet-proof performance and the heat insulation performance are comprehensively improved.

The utility model provides a sunscreen jacquard fabric and sunscreen clothes with the cool sense, the sunscreen jacquard fabric with the cool sense comprises a fabric body, the fabric body is formed by interweaving warp yarn and weft yarn through hexagonal honeycomb jacquard weave, the warp yarn is semi-gloss chinlon DTY ice-cold yarn, the weft yarn is semi-gloss chinlon DTY ice-cold yarn, and the weft yarn is semi-gloss chinlon DTY ice-cold yarn. The weft yarns are chinlon DTY (Draw Textured Yarn) uvioresistant yarns coated with spandex elastic fibers; according to the sunscreen jacquard fabric, the specific yarn type is selected to be matched with the specific interwoven structure, so that the obtained sunscreen jacquard fabric has excellent ultraviolet resistance, air permeability and a cool feeling effect on the whole, and is suitable for being used as sunscreen clothes.

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 discloses a preparation method of an antistatic fabric based on a Cu9S5 / organic matter double coating. The UPF value of the prepared Cu9S5 / organic matter double-coating fabric is larger than 40, the UVA transmittance is smaller than 5%, and the antistatic performance reaches the A level. Cu9S5, conjugated Schiff base, polyaniline and polypyrrole cooperate to improve the conductivity of the cotton and polyester fabric and improve the anti-static performance and anti-ultraviolet performance of the cotton and polyester fabric, meanwhile, by optimizing the preparation conditions of the organic matter and the Cu9S5 coating, the high organic matter and Cu9S5 weight gain rate is achieved, and good application prospects are achieved.

The invention relates to a novel high Abbe number 1.56 acrylic lens, which is characterized in that monomers for synthesizing a lens material contain modified methyl methacrylate, an acrylate monomer with hydroxyl, a polymethacrylate monomer and high refractive index epoxy resin, the modified methyl methacrylate is obtained by polyaddition reaction of methyl methacrylate, methacrylic acid and allyl methacrylate, and the mass ratio of methyl methacrylate, methacrylic acid and allyl methacrylate is (15-20): (3-5): (5-10). The abbe number, the hardness, the visible light transmittance, the impact resistance, the thermal stability, the ultraviolet aging resistance, the curvature stability and other properties of the lens are effectively improved.

The invention provides a mineral moisturizing, whitening and sunscreen isolation lotion and a preparation method thereof, and belongs to the technical field of cosmetics. The raw materials comprise a phase A, a phase B and a phase C. The preparation method comprises the following steps: heating water in the phase A to 80-90 DEG C, adding other raw materials in the phase A, and uniformly stirring and dispersing; uniformly mixing, stirring and dispersing the phase B; dropwise adding the mixed and dispersed phase A into the phase B, and uniformly stirring and dispersing; finally, adding the phase C, and emulsifying for 10-15 minutes at the speed of 5000-7000 r / min to obtain the mineral moisturizing, whitening and sunscreen isolation lotion. The mineral moisturizing, whitening and sunscreen isolation lotion prepared by the invention is simple in preparation method, good in moisturizing performance, relatively good in whitening, anti-ultraviolet, anti-oxidation and anti-inflammatory effects, non-irritant, safe, not easy to cause anaphylactic reaction, appropriate in consistency, uniform, fine, easy to smear and comfortable in skin feeling; and meanwhile, a relatively strong ultraviolet protection effect is achieved.

The invention relates to a scratch-resistant ultraviolet-proof glass heat-insulating film and a preparation method thereof, and belongs to the technical field of glass heat-insulating films. The heat-insulating film is composed of a PET substrate layer, an ultraviolet-proof heat-insulating layer and a scratch-resistant layer, and nano cerium dioxide and silicon quantum dots are combined in the ultraviolet-proof heat-insulating layer, so that the ultraviolet light absorption performance is remarkably enhanced, and meanwhile, good visible light transmittance is kept; the heat insulation performance of cerium dioxide and an additional scattering center introduced by silicon quantum dots further improve the heat insulation effect of the material; and gamma-aminopropyltriethoxysilane is utilized to perform surface modification on the composite material, so that the stability and dispersity of the composite material in a waterborne polyurethane emulsion are enhanced, and the local agglomeration phenomenon is avoided. And modified nano silicon dioxide is added into the scratch-resistant layer to serve as a wear-resistant filler, so that the wear resistance and scratch resistance of the film are remarkably improved, and meanwhile, good ultraviolet protection capability and heat insulation performance are kept.

A highly flexible UV-proof hardened film, the hardened film comprises a transparent support and an anti-glare hardened layer coated on any surface of the transparent support; the anti-glare hardened layer is formed by curing and drying a coating liquid with UV light, the coating liquid comprises the following substances in parts by weight: 15 to 45 parts by weight of polyurethane acrylate oligomer; 5 to 30 parts by weight of cellulose fiber polybenzotriazole complex; 30 to 60 parts by weight of organic solvent; 0.01 to 2.5 parts by weight of leveling agent; 0.75 to 4.5 parts by weight of photoinitiator; wherein the cellulose fiber polybenzotriazole complex is composed of nano-scale cellulose fibers and nano-scale polybenzotriazole particles. The present invention adds a cellulose fiber polybenzotriazole complex to the anti-glare coating of the hardened film, so that the hardened film has excellent UV protection without reducing the curing effect of the coating, and has a light transmittance and clarity similar to that of a transparent film, and has excellent optical properties.

The utility model discloses ultraviolet-proof door and window glass which comprises a pvb resin layer located in the middle layer, tempered glass layers are arranged on the upper side and the lower side of the pvb resin layer respectively, and ultraviolet-proof layers are arranged on the outer sides of the tempered glass layers. A reflective film layer is arranged on the outer side of the ultraviolet-proof layer; the toughened glass layer and the pvb resin layer as well as the ultraviolet-proof layer and the toughened glass layer are connected through polyurethane adhesive, the glass has relatively strong ultraviolet-proof capability, and meanwhile, after encountering an external force, due to the arrangement of the pvb resin layer, the broken glass can be prevented from scattering, and the glass is suitable for being used in a sunlight room.

The application relates to the technical field of paint, and discloses a steel casting coated with high-strength high-toughness weather-resistant paint and a preparation method thereof; the steel casting coated with high-strength high-toughness weather-resistant paint comprises the following operation steps: uniformly mixing epoxy resin, modified polyimide, alkylated lignin composite material, polyamide and a solvent to obtain high-strength high-toughness weather-resistant paint; a basic steel casting is cleaned in acetone, washed with water, dried, coated with the high-strength high-toughness weather-resistant paint, and cured at a high temperature to obtain the steel casting; in the scheme, a benzoyl ketone group structure is introduced into lignin and into polyimide to synergistically improve the mechanical properties, but the strength is too high and the weather resistance is limited, so an alkane structure is further introduced into the obtained amino benzoyl ketone group lignin as a filler to enhance the toughness and weather resistance of the coating.

The invention relates to the technical field of silicon dioxide materials, in particular to anti-aging quantum dot silicon dioxide and a preparation method and application thereof. The preparation method comprises the steps that silicon dioxide or silicic acid and a carbon source are subjected to first-stage calcination in a vacuum furnace, the first-stage calcination temperature is 300-750 DEG C, the first-stage calcination time is 10 min to 8 h, then air is introduced for second-stage calcination, the second-stage calcination temperature is 300-750 DEG C, and the second-stage calcination time is 10 min to 8 h. According to the anti-aging quantum dot silicon dioxide and the preparation method thereof, the anti-ultraviolet and anti-aging properties of the material are compounded and enhanced by utilizing the quantum dot effect and the oxygen vacancy effect, and the anti-aging quantum dot silicon dioxide is added into a matrix or sprayed on the surface of the matrix, so that the ultraviolet can be effectively prevented, and the aging of the material is prevented.

The invention relates to a preparation method of a high-abbe-number modified acrylate optical material, which is characterized in that monomers for synthesizing the optical material contain modified methyl methacrylate, an acrylate monomer with hydroxyl, a polymethacrylate monomer and high-refractive-index epoxy resin, the modified methyl methacrylate is obtained by polyaddition reaction of methyl methacrylate, methacrylic acid and allyl methacrylate, and the mass ratio of methyl methacrylate, methacrylic acid and allyl methacrylate is (15-20): (3-5): (5-10). The abbe number, the hardness, the visible light transmittance, the impact resistance, the thermal stability, the ultraviolet aging resistance, the curvature stability and other properties of the optical material prepared by the method are effectively improved. The preparation method is simple in procedure, safe and controllable, no waste is discharged in the preparation process, and the green and environment-friendly industrial production requirement can be met.

The utility model relates to the technical field of spectacle lenses, and discloses a high-hardness anti-blue-light spectacle lens which comprises a spectacle lens body, the spectacle lens body is of an integrated structure, the spectacle lens body comprises a lens base body, a lower layered structure is arranged on the inner side of the lens base body, an upper layered structure is arranged on the outer side of the lens base body, and the upper layered structure is arranged on the inner side of the lens base body. The lens base body is a transparent resin substrate, the lower layered structure comprises a lower hardness layer, the lower hardness layer is located on the inner side of the lens base body, a lower anti-fog nano coating is sprayed on the side, away from the lens base body, of the lower hardness layer, the upper layered structure comprises an upper hardness layer, the upper hardness layer is located on the outer side of the lens base body, and a lower anti-fog nano coating is sprayed on the side, away from the lens base body, of the lower hardness layer. An anti-blue-light layer is arranged on one side, far away from the lens base body, of the upper hardness layer, an anti-dazzle layer is arranged on the anti-blue-light layer, and an anti-ultraviolet layer is arranged on the anti-dazzle layer. The high-hardness anti-blue-light anti-dazzle film disclosed by the utility model not only has relatively good hardness and anti-blue-light performance, but also has relatively good anti-dazzle and anti-ultraviolet performance.

The invention relates to a nano three-proofing finishing agent and a preparation method and application thereof.The finishing agent comprises fluorine-containing acrylic emulsion and nano titanium dioxide powder, the fluorine-containing acrylic emulsion is of a core-shell structure comprising a shell structure and a core structure, the shell structure is formed by polymerizing 40-50 wt% of perfluorohexyl ethyl acrylate, 30-40 wt% of 2-ethylhexyl acrylate and an emulsifier, and the core structure is formed by polymerizing 40-50 wt% of perfluorohexyl ethyl acrylate, 30-40 wt% of 2-ethylhexyl acrylate and the emulsifier. The core structure is formed by polymerizing 40 to 50 weight percent of methyl methacrylate, 30 to 40 weight percent of 2-ethylhexyl acrylate and an emulsifier. The finishing agent provided by the invention can realize three-proofing finishing on the real silk fabric, can endow the real silk fabric with anti-ultraviolet performance, and meets the hand feeling requirement of the real silk fabric.

The utility model relates to the technical field of sealing bags, and discloses a sealing bag for articles involved in cases, which comprises a bag body, side edge connecting strips are arranged on two sides of the bag body, and a first sealing rib and a second sealing rib are arranged on the top of the surface and the top of the back of the bag body. By arranging the bag body, a worker can conveniently put articles involved in the case into the bag body to be stored, the firmness of the two sides of the bag body can be improved through the arrangement of the side edge connecting strips, the sealing performance of the bag body can be improved through the arrangement of the first sealing bone strip and the second sealing bone strip, and the sealing performance of the bag body can be improved through the sealing blocks and the protruding blocks. The first sealing rib and the second sealing rib can be sealed at the same time, operation is convenient, by arranging the ultraviolet-proof layer, the waterproof layer, the wear-resisting layer and the impermeable layer, the functionality of the bag body can be increased, the ultraviolet-proof, waterproof, wear-resisting and impermeable functions of the bag body are improved, the service life of the bag body is further prolonged, and the service life of the bag body is prolonged. And articles involved in cases can be better stored.

The invention relates to the field of films, in particular to an anti-ultraviolet film and a preparation method and application thereof. The invention discloses an ultraviolet-proof film which is prepared from the following raw materials in parts by weight: 50-60 parts of polyvinyl chloride resin, 1-2 parts of an antioxidant, 5-8 parts of a coupling agent and 2-4 parts of supported zinc oxide powder. According to the ultraviolet-proof film, amino acid ionic liquid is used as a template, supported zinc oxide powder is synthesized through a solvothermal method, the powder is combined with a diatomite loading agent to prevent agglomeration, and the dispersity and stability of the powder in polyvinyl chloride resin are enhanced; then, mixing the supported zinc oxide powder, an antioxidant and a coupling agent in polyvinyl chloride resin according to a specific weight part ratio, forming a film through a tape casting method, curing and drying, and finally preparing the film with excellent ultraviolet-proof performance, good oxidation resistance, wear resistance and visible light transmittance.

The invention discloses multifunctional conductive hydrogel and a preparation method thereof. The preparation method comprises the following steps: step 1, mixing acrylamide, N, N-methylene bisacrylamide, PEDOT: PSS, beta-cyclodextrin and gallic acid; 2, mixing, dissolving in a mixed solution of glycerol and deionized water, and uniformly stirring at normal temperature to obtain a conductive hydrogel precursor solution; and 3, adding ammonium persulfate into the hydrogel precursor solution, uniformly mixing, putting the precursor solution into a mold, and heating to obtain the conductive hydrogel. The hydrogel has the characteristics of super-strong stretchability, antibacterial property, water loss prevention, high swelling property, stripping as required, good ultraviolet and visible light transmission resistance, good biocompatibility and excellent oxidation resistance in a large strain range of 0-600%.

The utility model discloses a separable multilayer anti-counterfeit label, which belongs to the technical field of anti-counterfeit labels and comprises an anti-counterfeit label main body, a separating strip is arranged at one end of the anti-counterfeit label main body, an anti-counterfeit information component is arranged in the separating strip, an anti-counterfeit two-dimensional code is arranged at one end of the upper part of the anti-counterfeit label main body, and an anti-counterfeit information component is arranged in the separating strip. One side of the anti-counterfeit two-dimensional code is provided with a specification two-dimensional code, the other end of the upper portion of the anti-counterfeit label body is provided with a connecting assembly, the anti-counterfeit label body comprises an anti-counterfeit label base body, a waterproof layer and an effect strengthening assembly, the waterproof layer is arranged on the surface of the anti-counterfeit label base body, and the effect strengthening assembly is arranged on the surface of the waterproof layer. According to the anti-counterfeit label, the connecting assembly is arranged, so that the separating strip and the anti-counterfeit label main body can be reconnected, the connecting between the separating strip and the anti-counterfeit label main body is firmer than the connecting between the separating strip and the anti-counterfeit label main body through an easy-to-tear line, the use practicability is improved, and the effect strengthening assembly is arranged, so that the high-temperature-resistant, wear-resistant and ultraviolet-proof effects of the anti-counterfeit label main body are improved.

The invention discloses a high-barrier antibacterial anti-ultraviolet BOPET release film and a preparation method thereof, and belongs to the technical field of high polymer materials. The BOPET release film comprises a BOPET base film layer, a middle layer and a release layer, wherein the middle layer and the release layer are sequentially arranged on the BOPET base film layer; the release layer is prepared from the following components in parts by weight: 60 to 80 parts of polyether modified heptamethyltrisiloxane, 30 to 50 parts of organic silicon modified resin, 5 to 10 parts of a photoinitiator and 1 to 3 parts of an ethylene-vinyl acetate copolymer; the middle layer is prepared from the following components in parts by weight: 80-100 parts of epoxy resin, 60-70 parts of polyethylene glycol terephthalate, 30-40 parts of a blocking agent, 5-15 parts of an ultraviolet absorbent and 5-10 parts of an antibacterial agent. The BOPET release film provided by the invention has high barrier property, antibacterial property and anti-ultraviolet capability, and is moderate in stripping force. Therefore, the BOPET release film has a relatively good application prospect.

The double-color ear cap KT punching technology comprises the following steps that S1, a mold with an adjustable temperature control system and a dynamic runner structure is provided, and the mold comprises a first injection molding cavity and a second injection molding cavity; s2, designing an internal structure of the ear cap by using a three-dimensional design tool, adjusting key parameters through a Bayesian optimization algorithm, manufacturing the internal structure by using a nano-resolution 3D printing technology, and positioning through an automatic alignment system; s3, a plastic material of the first color is injected into the first injection molding cavity, and a first part of the ear cap is formed; s4, the ear cap part is transferred to a second injection molding cavity through an automatic alignment system; s5, injecting a plastic material with a second color to form a second part of the ear cap; s6, performing multifunctional surface treatment on the ear caps; s7, complex patterns and textures are formed on the surfaces of the ear caps through the KT technology, and the uniqueness and high quality of the appearance are ensured; s8, carrying out quality detection; s9, the ear caps are packaged, and anti-fake intelligent labels are added; the quality of the ear cap and the user experience are improved.

The present invention belongs to the technical field of polymer material surface treatment, and discloses a modified sericin anti-ultraviolet coating and a preparation method thereof. The preparation method of the modified sericin anti-ultraviolet coating comprises the following steps: mixing sericin, water and a copper source to obtain a composite anti-ultraviolet finishing agent; mixing the composite anti-ultraviolet finishing agent with a curing agent to obtain a mixed liquid, and then curing it on the surface of a fabric to obtain a modified sericin anti-ultraviolet coating. The modified sericin anti-ultraviolet coating of the present invention has a dual interaction. On the one hand, sericin acts as a reducing agent for copper ions, reducing part of the copper source into copper nanoparticles of different valence states and attaching them to the coating on the surface of the fabric. These copper nanoparticles can reflect and refract part of the ultraviolet rays, thereby enhancing the ultraviolet protection performance; on the other hand, copper ions denature sericin, thereby increasing the content of amino acid residues with ultraviolet absorption ability.