983 results about "Ultraviolet resistance" patented technology

Disclosed in the present invention are a fluorosilicone-modified low-surface-energy antifouling coating and a preparation method therefor. The coating comprises the following components in parts by weight: 11-15 parts of butyl acrylate, 3-4 parts of dodecafluoroheptyl methacrylate, 3-4 parts of vinyl-terminated polydimethylsiloxane, 3-4 parts of 2-hydroxy-4-acryloyloxybenzophenone, 30-38 parts of methyl isobutyl ketone, 0.15-0.25 parts of azobisisobutyronitrile, 0.1-0.2 parts of sodium hydroxide, 2-3 parts of modified titanium dioxide nanoparticles, and 0.5-1.5 parts of 3-aminopropyltriethoxysilane. In the present invention, vinylpentamethyldisiloxane reacts with decamethylcyclopentasiloxane to prepare vinyl-terminated polydimethylsiloxane; a titanium dioxide precursor is mixed with polydopamine nanoparticles for modification to prepare modified titanium dioxide nanoparticles; and then the components above are mixed to prepare the fluorosilicone-modified low-surface-energy antifouling coating. The coating has low surface energy and good adhesion and ultraviolet resistance.

The invention relates to polygonum multiflorum exosome-like vesicles and application thereof, the polygonum multiflorum exosome-like vesicles are applied to preparation of antioxidant products, anti-inflammatory products and anti-ultraviolet products, the antioxidant products are products for removing one or more of DPPH free radicals, ABTS free radicals and hydroxyl free radicals, the anti-inflammatory products are products for inhibiting hyaluronidase, and the anti-ultraviolet products are products for removing one or more of DPPH free radicals, ABTS free radicals and hydroxyl free radicals. And the anti-ultraviolet product is a product capable of absorbing UVB. Compared with the prior art, the polygonum multiflorum exosome-like vesicles prepared by the method disclosed by the invention are low in cost and large in treatment capacity, and the obtained polygonum multiflorum exosome-like vesicles have excellent oxidation resistance, inflammation resistance and ultraviolet resistance.

The invention discloses a rubber modified asphalt product and a preparation method thereof. The rubber modified asphalt product comprises the following raw materials in parts by weight: 55-60 parts of base asphalt, 15-20 parts of rubber particles, 12-14 parts of a hybrid-based modified filler, 8-11 parts of aromatic oil, 5-8 parts of an additive, 2-3 parts of microcrystalline wax, 2-3 parts of a silane coupling agent and 2-4 parts of an antioxidant. According to the rubber modified asphalt product disclosed by the invention, the base asphalt is matched with the rubber particles, the aromatic oil, the microcrystalline wax, the silane coupling agent and the antioxidant to serve as functional aids, and meanwhile, the hybrid-based modified filler and the additive are added to serve as synergists, so that the base asphalt and the additive are coordinated to achieve a synergistic effect and jointly achieve a synergistic effect; the obtained modified asphalt product has harmonious improvement on elastic recovery, track dynamic stability and bending strain, and also has remarkable water resistance, ultraviolet resistance and cold and heat resistance stability effects.

The invention relates to the field of coatings, and particularly discloses an anti-aging water-based acrylic coating and a preparation method thereof. The anti-aging water-based acrylic coating is prepared from the following raw materials in parts by weight: 55 to 60 parts of fluorosilicone modified acrylic emulsion; 8-18 parts of an anti-aging agent; 8 to 12 parts of silica sol; 6-10 parts of a flame retardant; 4-8 parts of heavy calcium powder; 6-10 parts of a pigment; 0.5 to 1 part of a thickening agent; the preparation method comprises the following steps: S1, preparing a fluorosilicone modified acrylic emulsion: carrying out blending reaction on an acrylic functional monomer, styrene and polyhedral oligomeric silsesquioxane with an emulsifier and an initiator to obtain the fluorosilicone modified acrylic emulsion; and S2, preparing the coating. The product disclosed by the invention has many excellent properties such as high hardness, good water resistance and excellent ultraviolet resistance, so that the product has excellent aging resistance and a good protection effect on an outer wall.

The invention provides a modified polyimide fiber and a preparation method and application thereof, and the preparation method comprises the following steps: S1, adding a polyimide fiber into an alkali solution for reaction, cleaning a reactant with acid and alkaline alcohol, and drying to obtain an activated polyimide fiber; s2, adding the activated polyimide fiber into an alkaline alcohol solution, adding into a first silane coupling agent, carrying out modification reaction, adding modified epoxy resin, and mixing to obtain a bottom layer component; s3, adding the activated polyimide fiber into an alkaline alcohol solution, adding a second silane coupling agent and a hyperbranched polymer, and carrying out a modification reaction to obtain a surface layer component; and S4, covering the bottom layer component with the surface layer component, drying to obtain the modified polyimide fiber, and optimizing the coating to obtain the modified polyimide fiber with high mechanical property, excellent atomic oxygen resistance and ultraviolet resistance and environmental adaptability.

The invention relates to an anti-corrosion treatment process for a ship lock steel structure. The anti-corrosion treatment process comprises the steps that S1, the surface of the ship lock steel structure is pretreated; s2, the surface of the pretreated steel structure is coated with an anti-corrosion coating containing graphene modified zinc powder to serve as primer; s3, the surface of the primer is coated with super-strong epoxy paint, intermediate paint is formed, and the super-strong epoxy paint is amine adduct cured high-solid epoxy finish paint; s4, the surface of the intermediate paint is coated with a polyurethane coating to serve as finish paint; by selecting proper paint as primer, intermediate paint and finish paint, one scheme is suitable for all areas and can resist corrosion for a long time, and finally the problem that different areas need to be constructed in different areas is solved. According to the anti-corrosion scheme, the adhesive force is high, the shielding property is high, the water resistance is good, and the ultraviolet resistance is high.

The invention discloses a sheath material for a saline-alkaline-resistant dragging cable, a preparation method of the sheath material, the cable and the sheath material. The sheath material is prepared from the following raw materials in parts by weight: 40 to 45 parts of chlorinated polyethylene, 1.5 to 2.0 parts of dicumyl peroxide vulcanizing agent, 2 to 2.5 parts of triisocyanate vulcanizing agent, 0.1 to 0.3 part of ethylene thiourea accelerant, 0.05 to 0.15 part of anti-aging agent RD, 4 to 5 parts of metal oxide, 1 to 1.5 parts of paraffin, 8 to 10 parts of calcium carbonate, 15 to 21 parts of reinforcing agent, 1 to 1.5 parts of lead stearate, 0.5 to 1 part of lead sulfate tribasic, 1 to 1.5 parts of ultraviolet light absorber, 3 to 5 parts of epoxidized soybean oil and 8 to 8 parts of chlorinated paraffin. 9 parts of antimony trioxide and 3-4 parts of antimony trioxide. The cable has the advantages of ultraviolet resistance, no salt deposition, water resistance, tensile resistance, cold resistance and the like, can be used for a long time in a special operating environment, has the service life of at least more than 3 years, and avoids frequent replacement of the cable by a user.

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

The invention discloses a preparation method of a photoresponsive self-cleaning optical coating with a dynamic self-repairing function. The preparation method comprises the following steps: adding a monomer containing a Diels-Alder reaction bond into a polyurethane prepolymer, and reacting to obtain the polyurethane elastomer with self-repairing capability. An azobenzene derivative is connected to a polyurethane elastomer through a covalent bond, and the photoresponsive self-repairing polymer is obtained. Hydrophobically modified TiO2 nanoparticles are prepared in situ through a sol-gel method. In order to further improve the dispersity of the TiO2 nanoparticles in the polymer, a silane coupling agent is adopted to carry out surface modification on the TiO2 nanoparticles. The preparation method comprises the following steps: mixing a photoresponsive self-repairing polymer and a TiO2 nanoparticle dispersion liquid in proportion, uniformly stirring, coating the mixed liquid on the surface of a base material, forming a uniform coating through a brush coating or spray coating method, and curing the coating at a proper temperature. Due to the excellent characteristics of light response self-repairing, ultraviolet resistance, wear resistance and the like, the coating can keep a long transparent period and good antifouling durability in an outdoor environment.

The invention relates to the technical field of composite plastic wood, and discloses an environment-friendly composite plastic wood plate and a preparation method thereof.The environment-friendly composite plastic wood plate is prepared from bamboo powder, poly (butylene adipate-co-terephthalate), polylactic acid, a compatilizer, filler, a lubricant, functional fibers and a composite additive, the functional fibers are added, so that the prepared environment-friendly plastic-wood plate has excellent mechanical properties and antibacterial properties, and the situation that the composite plastic-wood plate is eroded by bacteria and molds, and the appearance and the performance of the composite plastic-wood plate are affected badly can be avoided; by adding the composite additive, the prepared environment-friendly plastic-wood plate has excellent impact resistance and ultraviolet resistance, energy can be better absorbed and dispersed when the environment-friendly plastic-wood plate is impacted by external force, and the situation that the service life of the composite plastic-wood plate is shortened due to ultraviolet irradiation in the long-term use process is avoided.

The invention relates to the technical field of asphalt concrete, and discloses an anti-crack asphalt concrete material and a preparation method thereof. According to the asphalt concrete material disclosed by the invention, by adding the reinforcing filler and the composite aerogel, the crack resistance, the service life and the ultraviolet aging resistance of a matrix are remarkably improved; wherein the reinforcing filler is based on the synergistic effect among modified lignin, diatomite and hydrotalcite, the compatibility among modified lignin, diatomite and hydrotalcite is improved by utilizing a silane coupling agent, and the dispersity of the reinforcing filler in a matrix is improved, so that the crack resistance of the matrix is improved, the service life of the matrix is prolonged, and the ultraviolet resistance of the matrix is improved; the composite aerogel has excellent heat insulation performance and a three-dimensional network structure, and the crack resistance of the matrix can be improved through the synergistic effect.

The invention relates to the field of coatings, and discloses weather-resistant and scratch-resistant coated glass and a preparation method thereof.The coated glass comprises a glass substrate and a functional coating formed by thermocuring of a coating composition, and the coating composition comprises waterborne polyurethane, a functional additive and modified graphene oxide; the functional additive is prepared from silica sol and aminopropyl double-terminated polydimethylsiloxane grafted modified nano titanium dioxide; the modified nano titanium dioxide is prepared by enabling 2-(2, 4-dihydroxyphenyl)-2H-benzotriazole and a chloropropyl silane coupling agent to react, grafting the reaction product on the surface of nano titanium dioxide, and then grafting isophorone diisocyanate and pentaerythritol triacrylate; the modified graphene oxide is prepared by grafting a flame-retardant modifier prepared by reacting 3-amino-1, 2, 4-triazole, an amino silane coupling agent, terephthalaldehyde and DOPO with graphene oxide, and the coated glass prepared by the preparation method disclosed by the invention is high in hardness, good in flame retardance and antifouling effect and excellent in wear resistance and ultraviolet resistance.

The invention discloses a corrosion-resistant insulating aerial cable which sequentially comprises a conductor layer, an insulating layer, a shielding layer, a corrosion-resistant layer and an outer sheath from inside to outside. The conductor layer is an aluminum alloy stranded wire of which the surface is coated with an anti-oxidation coating; the insulating layer is made of crosslinked polyethylene doped with 3-5% of nano silicon dioxide; the corrosion-resistant layer is a fluoroplastic or polyurethane coating; and the outer sheath is polyvinyl chloride added with an antioxidant and an ultraviolet light absorber. The fluoroplastic coating is formed through electrostatic spraying, and the surface of the copper wire shielding layer is subjected to phosphating pretreatment; the doped nano material enhances the mechanical strength and ultraviolet resistance of the insulating layer; the spiral groove design accelerates drainage and reduces accumulated water corrosion.

The invention discloses a high-corrosion-resistance powder coating and a preparation method thereof, and belongs to the technical field of powder coatings. Through modification of the resin system, the ultraviolet absorbent modified epoxy resin and the weather-resistant polyester resin are compounded, so that the ultraviolet resistance and the weather resistance of the resin system are remarkably improved, and the corrosion resistance reduction caused by light aging is avoided; the flake graphene forms an excellent physical barrier to block corrosion medium permeation, then chemical passivation of zinc phosphate is combined to inhibit electrochemical corrosion, the synergistic effect is achieved, the corrosion resistance is synergistically enhanced from the physical and chemical angles, the path of the corrosion medium is further prolonged in combination with the laminated structure of the glass flakes, and the corrosion resistance is improved. And meanwhile, the filler A and the filler B can also play a role in enhancing the mechanical strength of the coating, so that the powder coating with high corrosion resistance can be obtained on the whole.

The invention belongs to the technical field of textile, and relates to an efficient antibacterial fabric for preparing underwear and a dyeing and finishing method and application thereof.The provided antibacterial fabric is weft-knitted bird eye double-faced knitted fabric and is composed of polyester, cotton and modal fibers, the surface density is 180 g / m, surface yarn of the antibacterial fabric is hollow polyester fibers with special-shaped sections, and the surface yarn of the antibacterial fabric is hollow polyester fibers with special-shaped sections. The lining yarn is formed by weaving dacron and blended yarn according to the proportion of 2: 1. According to the method, dyeing and finishing of the antibacterial fabric, fabric weaving and ergonomic sewing are combined, the fabric which has efficient antibacterial performance, good moisture permeability and ultraviolet-proof performance and high color fastness is obtained, and the prepared antibacterial clothes are high in quick-drying performance, comfortable to wear and high in environmental adaptability.

The invention discloses a light-weight moisture-conducting functional fabric and a preparation method thereof, and relates to the technical field of textile, the light-weight moisture-conducting functional fabric comprises an inner layer and an outer layer, the inner layer is obtained by blending polyester fibers and nylon special-shaped section fibers, and the outer layer is obtained by blending modified polypropylene fibers and hollow polyester fibers; the modified polypropylene fiber is obtained by mixing polypropylene slices and modified jade powder, melting, spinning and stretching; the prepared fabric has the light weight characteristic and the one-way moisture guiding capacity, sweat can be rapidly discharged out of the body, dry and comfortable isolation between the skin and the outside is achieved, and multiple health protection functions such as lasting antibiosis, efficient ultraviolet resistance and contact cool feeling are organically integrated.

The invention relates to the technical field of architectural glass coatings, and discloses a functional coating for architectural glass and a preparation method of the functional coating. Comprising the following raw materials in parts by weight: 40-60 parts of water-based acrylic resin emulsion, 0.4-0.6 part of a defoaming agent, 5-15 parts of modified nano zinc oxide, 0.3-0.5 part of a flatting agent, 1.5-2.5 parts of a coalescing agent, 3-5 parts of a curing agent, 2-4 parts of a dispersing agent, 30-45 parts of deionized water and 3-5 parts of a thickening agent. An alternating structure formed by copolymerization of alkenyl ether (ester) and fluorine-containing ethylene is grafted on the surface of nano-zinc oxide, so that the surface of the nano-zinc oxide has fluorine-containing chain segments, and the excellent hydrophobic property of the chain segments and the antistatic capacity of the nano-zinc oxide cooperate with each other, so that the coating has super-hydrophobic property and self-cleaning capacity; the compatibility of the modified nano-zinc oxide and the coating is remarkably improved, and meanwhile, the nano-zinc oxide has a shielding effect on ultraviolet rays in long and medium wave bands, so that a coating film formed by curing the coating has excellent anti-ultraviolet performance.

The invention relates to the field of temperature-adjusting fibers, and particularly discloses a preparation method of a phase-change temperature-adjusting fiber. The phase-change temperature-adjusting fiber is of a core-shell composite structure, a core layer is a lyocell fiber with wood pulp as a raw material, phase-change microcapsules are arranged on the fiber, octadecane serves as a phase-change material, and the phase-change microcapsules are formed by wrapping melamine-formaldehyde resin formed by condensation of melamine and formaldehyde. The outer layer is a shell fiber which is formed by blending polyacrylonitrile and cellulose acetate, the surface of the shell fiber contains structures such as pores, micropores and cracks, and nano titanium dioxide particles capable of absorbing ultraviolet rays are attached to the shell fiber. Experiments prove that the phase-change temperature-regulating fiber not only has a phase-change temperature-regulating function, but also has the effects of ultraviolet resistance, moisture permeability and sweat releasing. The phase-change temperature-adjusting fiber is used as a raw material, and is blended and woven with other fibers to prepare the temperature-adjusting functional fabric.

The invention discloses a novel long-acting bird repellent and a preparation method thereof, and belongs to the technical field of chemical bird repelling. The bird repellent is composed of a core material and a wall material, the core material is a mixture of geraniol, cinnamyl aldehyde and allicin according to the mass ratio of 1: (1.2-1.5): (0.5-0.8), the wall material is modified beta-cyclodextrin and pumpkin seed protein nanoparticles, and the mass ratio of the geraniol, the cinnamyl aldehyde and the allicin is (5-7): (3-5): (1-3). The preparation method comprises the following steps: preparing the quaternary ammonium salt modified beta-cyclodextrin, including the core material, performing high-speed shearing emulsification on the quaternary ammonium salt modified beta-cyclodextrin and the pumpkin seed protein nano dispersion liquid, and performing freeze drying to obtain a final product. According to the invention, a stable and compact'molecular inclusion + physical barrier 'dual slow-release structure is constructed by utilizing the electrostatic interaction between the positively charged modified beta-cyclodextrin and the negatively charged protein nanoparticles, the release time of effective components is remarkably prolonged to 9 months or more, and the composite material has excellent rain wash resistance and ultraviolet resistance, and can be used for preparing a composite material with a good application prospect. And efficient, environment-friendly and long-acting bird repelling is realized.

The invention belongs to the technical field of photovoltaic tempered glass, and particularly relates to photovoltaic tempered glass and a preparation method thereof.The photovoltaic tempered glass sequentially comprises tempered glass and a protective coating from bottom to top; the protective coating is prepared from the following raw materials in parts by mass: 20 to 45 parts of fluorine-containing polysiloxane, 10 to 18 parts of tetraethoxysilane, 10 to 20 parts of silicon dioxide / tetrapod-like zinc oxide whisker / alkyl phosphate, 10 to 20 parts of titanium dioxide / polymer molecular brush, 0.5 to 1 part of catalyst and 80 to 120 parts of solvent; the fluorine-containing polysiloxane is obtained by carrying out a reaction on octamethyl cyclotetrasiloxane, decamethyl cyclopentasiloxane and trifluoropropyl methyl cyclotrisiloxane. The photovoltaic tempered glass provided by the invention has super-hydrophobicity, excellent light transmittance, high-temperature and high-humidity resistance, high and low temperature impact resistance and ultraviolet resistance.

The invention relates to the technical field of radiation refrigeration materials, in particular to a polyimide fiber membrane for radiation refrigeration and a preparation method and application thereof. The polyimide fiber membrane for radiation refrigeration comprises polyimide-containing resin and inorganic particles, the polyimide-containing resin is prepared from diamine and dianhydride, the diamine is selected from a combination of diamine A and other diamines, and the diamine A comprises at least one of 4-aminobenzene-2, 5-pyridine diamine and 4, 4 '-diaminodiphenylamine; the dianhydride at least comprises dianhydride B, and the dianhydride B is selected from at least one of 1, 2, 4, 5-hydrogenated pyromellitic dianhydride, 3, 3 ', 4, 4'-dicyclohexyltetracarboxylic dianhydride and 4, 4 '-(hexafluoroisopropylidene) diphthalic anhydride. The invention has the advantages of high whiteness, high temperature resistance, ultraviolet resistance, high relative refractive index and higher infrared absorptivity.

The invention relates to the technical field of high polymer materials, and discloses a low-VOC (volatile organic compound) polypropylene composite material and a preparation process thereof, the low-VOC polypropylene composite material comprises the following raw materials: polypropylene, maleic anhydride grafted polypropylene, fluorenyl silicone oil, benzophenone coated talcum powder, activated carbon, an antioxidant, a plasticizer and a lubricant; the interface bonding force between a siloxane long-chain flexible structure and a polypropylene matrix material is improved by preparing fluorenyl silicone oil, the thermal stability of the composite material is effectively improved by combining fluorene rings, thermal decomposition products are reduced, VOC components are physically adsorbed and captured through a multilevel porous structure of activated carbon, VOC volatilization can be effectively reduced, and the environmental protection capacity of the composite material can be enhanced. Meanwhile, benzophenone-coated talcum powder is added into the polypropylene composite material matrix, so that the wear resistance and ultraviolet resistance of the polypropylene composite material matrix are enhanced, and the service life of the polypropylene composite material is effectively prolonged.

The invention relates to the technical field of basalt fiber reinforced composite material pipelines and preparation methods thereof, and discloses a pipeline named as a basalt fiber reinforced composite material pipeline and a preparation method thereof and a preparation method thereof. The invention aims to overcome the defects of continuity, interface bonding and mechanical properties of the conventional basalt fiber reinforced composite material pipeline. The pipeline is composed of a lining layer, a basalt fiber winding reinforcing layer and an outer protective layer, the reinforcing layer is formed by compounding basalt fiber bundles subjected to surface treatment and a resin matrix, and the reinforcing layer is of a multi-layer structure with different winding angles. The preparation method comprises the following steps: roughening the inner lining layer, infiltrating and accurately winding the fiber bundles, performing multi-section curing and forming the outer protective layer. According to the scheme, the macroscopic mechanical property of the pipeline is remarkably improved, the interface combination of fibers and a matrix is optimized, the integrity of the fibers is kept, efficient preparation is achieved, and the pipeline has the advantages of being excellent in corrosion resistance and ultraviolet resistance, long in service life and the like.

The invention discloses a bio-based fiber reinforced composite material and a preparation method thereof, and belongs to the technical field of bio-based fiber composite materials. The bio-based fiber reinforced composite material is prepared from the following raw materials in parts by weight: 60 to 80 parts of nylon 6, 10 to 20 parts of bio-based aramid fiber, 5 to 10 parts of modified carbon fiber, 2 to 6 parts of hyperbranched polyester modified zinc oxide and 1 to 3 parts of antioxidant, the bio-based aramid fiber is prepared by reacting 2, 5-furandicarbonyl chloride with two diamine monomers, and the two diamine monomers respectively contain trifluoromethyl and sulfuryl; the modified carbon fiber is obtained by grafting polyamidoamine on the surface of carbon fiber; the hyperbranched polyester terminal group of the hyperbranched polyester modified zinc oxide contains an epoxy group. The modified carbon fiber, the bio-based aramid fiber and the hyperbranched polyester modified zinc oxide are added into the nylon matrix, so that the composite material is endowed with good ultraviolet resistance, comprehensive mechanical properties and durability.

The invention discloses degradable printing ink and a preparation method thereof, and belongs to the technical field of degradable printing ink. The water-based paint is prepared from the following raw materials in parts by weight: 40-60 parts of water-based polyurethane resin, 4-8 parts of an emulsifier, 22-34 parts of polylactic acid, 6-18 parts of modified chitosan, 9-15 parts of natural pigment, 3-5 parts of a defoaming agent, 50-70 parts of deionized water and 5-10 parts of a dispersing agent. The prepared printing ink takes polyurethane resin as a main binder, so that the printing ink is endowed with excellent heat resistance and corrosion resistance; polylactic acid is used as a secondary binder, so that the printing ink is endowed with certain heat resistance and degradability; the pigment is a natural pigment and has degradability; the ink is water-based ink and is more environment-friendly; wherein the modified chitosan can greatly enhance the antibacterial property, ultraviolet resistance and heat resistance of the ink, and the performance is stable; in conclusion, the degradable printing ink has important application value in the technical field of degradable printing ink.

The invention provides vehicle window glass and a vehicle. The vehicle window glass comprises a glass body and a first functional layer. The glass body is provided with a signal transmission area. The glass body comprises an outer glass plate, a middle layer and an inner glass plate which are sequentially stacked, and the middle layer is connected between the outer glass plate and the inner glass plate; the first functional layer forms at least part of the middle layer, or the first functional layer is connected to the glass body, and the first functional layer and the middle layer are sequentially arranged in the thickness direction of the glass body; the projection of the first functional layer on the glass body in the thickness direction of the glass body at least covers the signal transmission area, the first functional layer is used for blocking ultraviolet rays, and the transmittance of the first functional layer to the ultraviolet rays with the wavelength smaller than or equal to 410 nm is smaller than or equal to 2%. According to the technical scheme, the transmittance of ultraviolet rays on the vehicle window glass can be reduced on the basis that the situation that signals of the optical sensor penetrate through the vehicle window glass is not affected, and then the anti-ultraviolet capacity of the vehicle window glass is enhanced.

The invention relates to the technical field of high polymer materials, in particular to polyolefin thermoplastic elastomer / silicone rubber thermoplastic vulcanized rubber as well as a preparation method and application thereof. According to the invention, the polyolefin thermoplastic elastomer grafted silane or / and the polyolefin thermoplastic elastomer grafted maleic anhydride / glycidyl ester terpolymer, the platinum catalyst and the inhibitor are added during blending and dynamic vulcanization of the silicone rubber and the polyolefin thermoplastic elastomer to regulate and control the dynamic vulcanization process; therefore, the thermoplastic vulcanized rubber with ideal mechanical properties is obtained. The polyolefin thermoplastic elastomer / silicone rubber thermoplastic vulcanizate provided by the invention is high in strength, good in elasticity, good in toughness, smooth in surface, fine in phase state, good in somatosensory compatibility and good in skin touch, and also has good stain resistance, sweat resistance, yellowing resistance and ultraviolet resistance.

The invention relates to the technical field of layered materials, and discloses a light, thin, sweat-guiding and quick-drying double-layer woven fabric with a skin-core structure and a preparation method and application of the light, thin, sweat-guiding and quick-drying double-layer woven fabric. The preparation method of the light, thin, sweat-guiding and quick-drying double-layer woven fabric with the skin-core structure comprises the following steps that functional polyester fibers and polypropylene fibers are blended into skin layer first yarn; the first skin layer yarn is subjected to laser drilling to form a micropore structure, and the pretreated first skin layer yarn is obtained; functional cotton fibers, superfine polyethylene fibers and temperature control fibers are blended into core layer second yarns; the pretreated skin layer first yarn and the core layer second yarn are woven into the light, thin, sweat-guiding and quick-drying double-layer woven fabric with the skin-core structure through the double-layer plain weaving technology. The light and thin sweat-guiding quick-drying double-layer woven fabric with the skin-core structure not only has excellent moisture absorption, sweat releasing and quick-drying performance, lasting antibacterial performance and ultraviolet resistance, but also has the light and thin characteristic, and can be used in the fields of sportswear, outdoor equipment, military protection and the like.

The invention relates to the technical field of aramid fibers, in particular to a high-strength modified meta-aramid fiber and a preparation method thereof. The meta-position aramid fiber overcomes the problem that the meta-position aramid fiber is poor in mechanical property and ultraviolet resistance. The preparation method comprises the following steps: taking MPD and DDS as diamine solids to react with IPC in a polymerization solvent to generate PMIA; the preparation method comprises the following steps: carrying out surface activation treatment on BNNS to prepare f-BNNS; the preparation method comprises the following steps: carrying out surface grafting and activating treatment on TiO2 to prepare ultraviolet-resistant nano TiO2; pMIA, the composite nano suspension and DDSM are mixed in NMP and defoamed to prepare a modified polymer spinning solution, and the high-strength modified meta-aramid fiber with good mechanical properties and ultraviolet resistance is obtained through dry spraying-wet spinning, gradient cleaning, three-stage hot stretching, heat setting, hot drying and rolling.

The invention discloses a preparation method of a multifunctional cellulose-based fiber, and belongs to the technical field of multifunctional fibers.The preparation method comprises the steps that firstly, a phosphoric acid compound and a polyphenol compound are placed in a reactor to be evenly mixed and react to obtain phosphoric acid modified polyphenol, and then the phosphoric acid modified polyphenol is subjected to wet grinding to obtain the multifunctional cellulose-based fiber; then adding the phosphoric acid modified polyphenol dispersion liquid subjected to ball milling into the cellulose-based spinning solution, finally stirring, mixing and defoaming to obtain a spinning solution containing phosphoric acid modified polyphenol, and spinning and forming to obtain the multifunctional cellulose-based fiber. The phosphoric acid modified polyphenol enables the fibers to have better flame retardance, antibacterial property, ultraviolet resistance and oxidation resistance, does not influence the softness and comfort of the fibers, has better binding force with the fibers, and ensures that the finishing effect is lasting and stable. The technology has high environmental protection property and sustainability, and is suitable for production of functional textiles, sportswear and high-performance fibers.