1059 results about "Uv absorbance" patented technology

A process for modifying the surface of an inorganic or organic substrate with strongly adherent nanoparticles is described, providing to the surface modified substrate durable effects like hydrophobicity, hydrophilicity, electrical conductivity, magnetic properties, flame retardance, color, adhesion, roughness, scratch resistance, UV-absorbance, antimicrobial properties, antifouling properties, antiprotein properties, antistatic properties, antifog properties, release properties. In this process, an optional first step a) a low-temperature plasma, ozonization, high energy irradiation, corona discharge or a flame is caused to act on the inorganic or organic substrate, and in a second step b) one or more defined nanoparticles or mixtures of defined nanoparticles with monomers, containing at least one ethylenically unsaturated group, or solutions, suspensions or emulsions of the afore-mentioned substances, are applied, preferably at normal pressure, to the inorganic or organic substrate. In a third step c) suitable methods are applied to dry or cure those afore-mentioned substances and, optionally, in a fourth step d) a further coating is applied on the substrate so pretreated.

Ultraviolet light absorbing polymer film, coating, or molded article UV filter elements are described which comprise a polymer phase having molecularly dispersed therein a) a first ultraviolet absorbing dibenzoylmethane compound of formula (I) where R1 through R5 are each independently hydrogen, halogen, nitro, or hydroyxl, or further substituted or unsubstituted alkyl, alkenyl, aryl, alkoxy, acyloxy, ester, carboxyl, alkyl thio, aryl thio, alkyl amine, aryl amine, alkyl nitrile, aryl nitrile, arylsulfonyl, or 5-6 member heterocylce ring groups, and b) a second ultraviolet light absorbing compound which absorbs ultraviolet light at a wavelength for which the first compound is deficient at absorbing. In particular embodiments, the second ultraviolet light absorbing compound may comprise a hydroxyphenyl-s-triazine, hydroxyphenylbenzotriazole, formamidine, benzoxazinone, or benzophenone compound. In a specific embodiment of the invention, the above UV absorbing compounds are employed in cellulose acetate film for the fabrication of a protective film for polarizers for use in display applications.

There is provided a photostable and synergistically enhanced topical sunscreen composition. There is further provided a method of enhancing the photostability of a sunscreen active in a topical sunscreen composition. There is further still provided a method of synergistically enhancing the UV absorbance of a sunscreen active in a topical sunscreen composition. The preferred compositions and methods of the present invention use a dibenzoylmethane sunscreen active, an extract of Kaempferia Galanga, and a cosmetically acceptable vehicle.

The invention discloses an ultraviolet fluorescence double-signal water quality monitoring device taking an LED (light emitting diode) as a light source and an application method of the device, and belongs to the field of environmental monitoring and water treatment. The ultraviolet fluorescence double-signal water quality monitoring device taking the LED as the light source consists of a sample collecting part and a detection part. The application method comprises the steps of selecting a deep ultraviolet LED lamp light source with specific wavelength and a photoelectric detector component according to a three-dimensional fluorescence atlas, detecting fluorescence intensity and ultraviolet absorption at the specific wavelength at the same time and calculating a ratio of the fluorescence intensity to the corresponding ultraviolet absorption. According to the device, no chemical reagent is consumed, monitoring of total concentration change of soluble organic matters in a water body can be realized, change of concentration of fluorescence ingredients such as proteins and humus can be reflected at the same time, and the sensitive, quick, efficient, economical, easy and information-rich on-line monitoring device is provided for the water treatment.

There is provided a photostable and synergistically enhanced topical sunscreen composition that provides increased substantivity, waterproofness, sweat resistance and rub off resistance. There is further provided methods of enhancing the photostability of a sunscreen active in a topical sunscreen composition, synergistically enhancing the UV absorbance of a topical sunscreen composition having a sunscreen active, and enhancing the substantivity, waterproofness, sweat resistance and rub off resistance in a topical sunscreen composition. The preferred compositions and methods have a sunscreen active, a cosmetically acceptable vehicle, and novel 2-substituted-3,3-diaryl-2-propenoic acid derivatives with [A] a C16 to C50 straight or branched chain, substituted or un-substituted, conjugated or non-conjugated hydrocarbon, or [B] a siloxane, polysiloxane, organo-modified polysiloxane residue, a group represented by the formula R10[Si(R10)2]n— and R11 which is a silicone residue derived from a silicone represented by the formula R11OH having a molecular weight up to about 30,000, wherein each R10 is independently selected from the group consisting of alkyl, alkoxy, aryl and aryloxy and n is from 1 to about 500.

The invention particularly relates to an EVA (ethylene vinyl acetate copolymer) packaging adhesive film capable of improving light spectrum conversion efficiency of a solar cell module. The EVA packaging adhesive film is formed by mixing the following components by weight: 80-150 parts of ethylene-vinyl acetate copolymer, 0.5-1.5 parts of a cross-linking agent, 0.1-1 parts of an assistant cross-linking agent, 0.1-0.5 parts of antioxidant, 0.1-1 part of ultraviolet absorbent, 0.1-1s part of light stabilizer, 0.3-1.5 parts of a coupling agent and 0.005-0.3 parts of light spectrum conversion material. According to the EVA packaging adhesive film, owing to addition of the light spectrum conversion material, the ultraviolet light with the wavelength of 300-400 nm can be converted into visible light with the wavelength of 400-550 nm, namely the light spectrum waveband with low quantum efficiency of a crystalline silicon cell is converted to the light spectrum waveband with high quantum efficiency, so that the light spectrum energy is reasonably utilized, and therefore the photoelectric conversion efficiency of the solar cell is improved, and the solar cell is beneficial to popularization and development.

The invention relates to the field of analytical chemistry and food safety, and provides a high performance liquid chromatography detection method for residual quantity of multiple ultraviolet absorbents in cosmetics. A cosmetic sample of 0.4g is weighed and placed in a plastic centrifuge tube of 50 ml, sample extraction liquid of 20ml is added, after the cosmetic sample of 0.4g and the sample extraction liquid of 20ml are mixed for 2 minutes in a vortex mode, sonic oscillation extraction is carried out for 20 minutes, 8000 revolutions per minute centrifugation is carried out for 10 minutes and, and supernate is to be purified; and after test solutions sequentially pass through microfiltration membranes of 0.45 micrometer and 0.20 micrometer, a high performance liquid chromatograph is adopted to carry out qualitative determination and quantitative assay. The detection method has the advantages of being simple, fast, accurate, efficient, and the like, and can detect 12 ultraviolet absorbents at the same time. Technical indexes of detection minimum, the recovery rate, the degree of precision, and the like all meet relevant demands for ultraviolet absorbent detection in sun block cosmetics at home and abroad. The method is suitable for detection and monitoring of the ultraviolet absorbents in the sun block cosmetics, and has great significance on promoting of import and export trade of cosmetics of our country, ensuring of safety of the cosmetics, and guarantee of human body health.

The composite of the cellulose and the nanometer titanium oxide and its preparation method and use are disclosed. It is produced by: making the suspending liquid by dispersing the nanometer titanium oxide particle into the 7-8% NaOH and 10-13% urea(wt%), adding in the cellulose after cooling it down to -8--15deg.C , stirring at the room temperature, scraping pellicle and spraying filament after filtering and degassing, solidifying and revivifying in the coagulator. It features: the intensity, the braking extensibility, flexibility of the pellicle and filament of the regenerated cellulous remains in the cellulose and the nanometer titanium oxide, endowed the new functions such as antisepsis activity and absorption of the ultraviolet ray. Its advantages include: easy process, no pollution of dissolvent, convenient operation, low cost, and high intensity of the composite.

The present disclosure provides multicoat systems exhibiting ultraviolet (UV) stability after ultraviolet exposure and moisture exposure. The systems comprise at least one primer (G), at least one pigmented coating (P) disposed on a surface of the primer, and at least one ultraviolet (UV) absorber which has an absorption maximum of at least 370 nm. The pigmented coating (P) may be comprised of two or more coatings (P1), (P2) to (Pn). The multicoat systems may also comprise a transparent coating material (T) to form a transparent coating (K). The present multicoat systems demonstrate ultraviolet stability, reduced delamination of the pigmented coat from the primer and are available in a variety of shades for use in the finishing, refinishing and coating of component parts.The present disclosure also provides for a process for producing the multicoat system, and provides for the use of the system.

The invention belongs to the field of biotechnological medicine and life and particularly relates to a high-prodigiosin-yield serratia marcescens strain Sm-128 and use thereof. The high-prodigiosin-yield serratia marcescens strain Sm-128 was collected in China Center for Type Culture Collection on November 13, 2010. The collection number of the strain is CCTCC No.M2010347. The serratia marcescens strain Sm-128 can be used for synthesizing prodigiosin. According to ultraviolet absorption spectrum and Fourier H nuclear magnetic resonance (H-NMR) spectrum analysis, the pigment produced by the Sm-128 strain is prodigiosin and the yield of the prodigiosin reaches 3 to 5 g / L. The pigment has high thermostability, oxidant resistance and reducer resistance and low photostability.

A composition includes a templated metal oxide substrate having a plurality of pores and a catalyst material includes silver. The composition under H2 at 30 degrees Celsius, the composition at a wavelength that is in a range of from about 350 nm to about 500 nm has a VIS-UV absorbance intensity that is at least 20 percent less than a standard silver alumina catalyst (Ag STD). The standard alumina is Norton alumina, and which has the same amount of silver by weight.

The invention discloses a transparent polyimide material. The transparent polyimide material is obtained by performing condensation polymerization on a 1,4-bi(3,4-dicarboxylic phenoxy)cyclohexane dianhydride monomer and a binary primary amine monomer. Because the dianhydride monomer is in an alicyclic structure, the formation of a charge transfer complex in polyimide molecules and between molecules can be effectively suppressed, and the transparent performance of the polymer is greatly improved; and meanwhile, according to the phthalic anhydride structures at two ends, the high reactivity of the dianhydride is kept. The glass transition temperature of the polyimide film is 200 to 300 DEG C, the ultraviolet absorption cutoff wavelength is 340 to 380nm, the light transmissivity at 450nm is 70 to 90 percent, and the transparent polyimide material has good application prospect in the fields of flexible substrate materials of solar cells, flexible transparent conductive film substrate materials, liquid crystal display materials and the like. The invention also discloses a dianhydride monomer which can be used for preparing the transparent polyimide resin material.

The present invention provides a means of greatly reducing interferences from mercury vapor, UV-absorbing compounds and water vapor in the measurement of ozone by UV absorbance. A heated graphite scrubber destroys greater than 99% of ozone passing through it while reducing biases from typical atmospheric UV-absorbing interferents by large factors compared to conventional ozone scrubbers. Substitution of a heated graphite scrubber in place of traditional ozone scrubbers such as hopcalite, metal oxides and heated silver scrubbers, results in a more accurate measurement of ozone by reducing the responses to UV-absorbing interferences and water vapor. The heated graphite scrubber also may be used in combination with other ozone sensors, such as electrochemical and HMOS sensors, to provide a reference measurement with ozone selectively removed and thus greatly reduce contributions from interfering species in those measurement devices as well.

The invention discloses an ultraviolet-resistant blue-light-absorbable optical bonding agent composition and an optical bonding piece with the bonding agent layer. The optical bonding agent composition comprises 100 parts of optical bonding agent, 1-10 parts of crosslinking curing agent, 0.01-5 parts of ultraviolet-resistant absorbent and 0.001-1 part of blue light absorbent. The ultraviolet-resistant blue-light-absorbable optical bonding agent composition and bonding piece have high light transmittance, low haze and favorable ultraviolet (with the wavelength of 300-380nm or so) shielding capacity, can absorb harmful blue light (400-470nm) to the human body in the visible portion, can be widely used as a current screen display device lamination body or intelligent screen protective film or other products capable of resisting ultraviolet and blue light (such as sunglasses, polaroids and the like), and greatly lower the injuries of ultraviolet and blue light to the skin and eyes of the human body.

Alkali lignin is a main by-product of the papermaking industry of our country, and sever environmental pollution will be caused by direct discharge of alkali lignin. The invention discloses a preparation method of an industrial alkali lignin / polyvinyl alcohol cross-linked thin film, so as to increase utilization ratio of lignin, reduce environmental pollution and ease the resource crisis. The industrial alkali lignin / polyvinyl alcohol cross-linked thin film is prepared by following steps, industrial alkali lignin and polyvinyl alcohol (PVA) are taken as raw materials, and are crosslinked by a cross-linking agent; and then the mixture is subjected to tape casting so as to obtain the alkali lignin / polyvinyl alcohol cross-linked thin film. An optimized preparation technology is obtained based on mechanical properties. The mechanical properties of the industrial alkali lignin / polyvinyl alcohol cross-linked thin film are better than that of industrial polyvinyl alcohol films; absorption rate on ultraviolet light is about 100%; and transmittance is reduced to a certain degree. Blending compatibility of alkali lignin and PVA is excellent; the surfaces of alkali lignin and polyvinyl alcohol thin films, which are prepared by blending or crosslinking, are smooth; and phase separation is not caused. Thermal stability of the industrial alkali lignin / PVA cross-linked thin film is increased. The industrial alkali lignin / PVA cross-linked thin film can be used as an excellent ultraviolet absorption material, and it is possible to develop a novel specific packaging material or mulching film.

The invention discloses nano cellulose containing a cinnamyl functional group and a preparation method and application of the nano cellulose and relates to the technical field of modified preparation and application of the nano cellulose. According to the preparation method, the nano cellulose is prepared through introducing the cinnamyl functional group to the nano cellulose; the cinnamyl functional group introduced to the nano cellulose is a micromolecule or a polymer of the cinnamyl functional group. According to the nano cellulose containing the cinnamyl functional group, excellent properties of the nano cellulose, such as excellent mechanical property, large specific surface area and good biocompatibility, are still kept; and meanwhile, the dispersity of the nano cellulose in an organic solvent and a hydrophobic material is improved. In addition, the nano cellulose containing the cinnamyl functional group has excellent ultraviolet absorption performance, and the nano cellulose containing the cinnamyl functional group is subjected to cross-linking reaction under ultraviolet radiation. The nano cellulose containing the cinnamyl functional group has a wide application prospect.

The invention discloses a cysteine fluorescence probe adopting coumarin as a fluorophore. The cysteine fluorescence probe is 2-(3-acetyl) coumarin-based acrylate and has the chemical structural formula shown as a formula (I) described in the specification. The 2-(3-acetyl) coumarin-based acrylate disclosed by the invention can act with cysteine selectively, becomes light yellow from colorless, has a fluorescence enhancing effect, can be distinguished by the naked eyes, and also can be analyzed by ultraviolet absorption and fluorospectrophotometry. The cysteine fluorescence probe disclosed by the invention has the advantages that trace high-sensitivity detection to the cysteine can be realized and the application value is important.

The invention discloses a fluorescence resonance energy transfer (FRET) mechanism based ratio fluorescent probe for hypochlorous acid ratio in a targeting mitochondrion. The ratio fluorescent probe is characterized in that coumarin fluorophore is used as an energy donor of the ratio fluorescent probe, and styryl benzothiazole is used as an energy receptor, so as to form a fluorescence resonance energy transfer combination pair of which the chemical structural formula is shown as Formula (I). The invention also discloses application of the ratio florescent probe in detection of hypochlorous acid in PBS (Poly Butylenes Succinate) / DMF (Dimethyl Formamide) buffering liquid and biological cells. The experiment shows that the probe can selectively act on hypochlorous acid; the solution turns from orange red to be colorless and can be recognized by naked eye; the fluorescence turns from orange red to green, and the fluorescence is obvious in ratio response; the ratio can also be analyzed by ultraviolet absorbing and fluorospectrophotometry. With the adoption of the ratio fluorescent probe, the trace in-vitro pypocholoride can be detected with high sensitivity, and the ratio imaging in the cells can be performed; the ratio fluorescent probe is expected to play a role in the clinical medicine and industrial production and has important application value.

The present invention relates to a benzotriazole compound with blocked amine groups, as shown in Formula I, wherein, general symbols are defined according to the Claim of Right 1. The present invention also relates to a method of preparing the compound, and an application of the compound in the present invention or the compound prepared in the preparation method as a light stabilizer. The compound can be used for effectively stabilizing thermosetting resin, thermoplastic resin, polyamide or polyester fiber, organic dye, cellulose paper preparation, paper for photographic film, printing ink, white or colored wax, and the like, and has the effective activeness for ultraviolet absorption and light stability for blocked amine.

The invention relates to a method for synthesizing 4-(4,6-dichloro-1,3,5-triazine-2-oxo)-2-hydroxyl phenyl benzophenone serving as a novel reactive ultraviolet absorbent (UV-DTHM) and application of the UV-DTHM to the uvioresistant arrangement of cotton fabrics, and belongs to the technical field of functional aids. The method comprises the following steps of: performing etherification reaction of diphenyl ketone (UV-O) and trichloro-s-triazine (CYC) which serve as raw materials under the catalysis of sodium hydroxide, wherein a ratio of UV-O to CYC to NaOH is 1:2.0:1.5; reacting in a mixed solvent of acetone and water at the temperature of 0 DEG C for 5 hours to obtain the UV-DTHM, and the yield of the UV-DTHM is 82.5 percent. The UV-DTHM has the excellent ultraviolet absorption performance, and is high in heat stability; and active groups are contained in a molecular structure and can be reacted with substances containing groups such as animo, hydroxyl and the like. The UV-DTHM is applied to the uvioresistant arrangement of white cotton fabrics to achieve an excellent uvioresistant effect (the value of an ultraviolet protective factor (UPF) reaches 67), and the UPF value is kept at 43+ / -3 basically after the cotton fabrics are soaped for 30 times, so the UV-DTHM has an excellent soaping-resistant effect.

The invention relates to an anti-static weather-resistant PVC matt sheets for decoration and method for preparation, wherein the weight percentage of the raw materials in the formula being, polychloroethylene 70-75%, titanium white 2-3%, nano calcium carbonate 10-12%, delustring agent 2-5%, antistatic agent 2-5%, anti-ultraviolet absorbent 0.4-0.6%, reinforcing agent 5-8%, heat stabilizer 1-1.5%, lubricating agent 1-1.5%.

A polymer film is used as an optical compensatory sheet or a support thereof. The polymer film contains a rod-like compound. The rod-like compound in the form of a solution gives an ultraviolet absorption spectrum. In the spectrum, the wavelength of λmax at the maximum absorption peak is shorter than 250 nm. The spectrum of the rod-like compound is measured when the rod-like compound is in the form of solution. The polymer film has an Rth retardation value of Rth450 measured at the wavelength of 450 nm in the range of 30 to 160 nm. The polymer film also has an Rth retardation value of Rth590 measured at the wavelength of 590 nm in the range of 50 to 200 nm. The values of the Rth450 and Rth590 satisfy the condition of Rth590-Rth450≧2 nm.

The present invention provides polysulfone-based hollow fiber membranes having high water permeable performance and for use in therapy of chronic renal failures, said hollow fiber membranes having high safety and high stability in performance and being excellent in module-fabricating workability. The present invention also provides a process for manufacturing the same. The present invention relates to a bundle of a plurality of selectively permeable polysulfone-based hollow fiber membranes wherein the amount of a hydrophilic polymer eluting from each hollow fiber membrane is not larger than 10 ppm, and wherein the content of the hydrophilic polymer in the outer surface of the hollow fiber membrane is 25 to 50 mass %, and this bundle is characterized in that any of extracted solutions from ten fractions of said bundle, obtained by dividing the bundle at substantially regular intervals along the lengthwise direction, shows a maximum value of smaller than 0.10 in UV absorbance at a wavelength of 220 to 350 nm, with the proviso that the extracted solutions are obtained by the extraction method for tests regulated in the approval manufacturing standards for dialytic artificial kidney devices; and in that the difference between the maximum and the minimum out of the maximum values of UV absorbance of the extracted solutions from the respective fractions is not larger than 0.05.

The invention discloses a waterproof paint. The raw materials are, by weight, 10-35 parts of alpha-dimethoxy silane terminated polyether resins, 5-25 parts of gamma-trimethoxy silane terminated polyether resins, 10-30 parts of triethoxy silane, 20-50 parts of filling materials, 1-5 parts of pigments, 0.1-1 part of hydrophobic gas-phase silica, 0.1-1 part of ultraviolet absorbents, 0.1-1 part of light stabilizers, 0.1-1 part of antioxidants, 0.2-5 parts of dehydrating agents and 0.1-3 parts of adhesion promoters. The waterproof paint is environmentally friendly and non-poisonous, has excellent mechanical properties, waterproof performance and anticorrosion performance, and has good adhesion with oil paint, steel, concrete and the like. In addition, inorganic flame retardants of aluminum hydroxide or magnesium hydroxide can be added, thus the waterproof paint has good flame retardant effects, and the application range of the waterproof paint is further widened.

The invention relates to a triazine compound which is as shown in general formula I and contains hindered amine groups, wherein general symbols are as defined in claim 1. The invention further relates to a method for preparing the compound and an application of the light stabilizer. The triazine compound containing the hindered amine groups can effectively stabilize thermosetting resin, thermoplastic resin, polyamide or polyester fiber, organic dyes, cellulose paper preparations, paper for photographic films, printing ink, white or colored wax and the like, and has the advantages of very effective ultraviolet absorption activity and hindered amine light stability.

A liquid composition free from N-alkylpyrrolidones and hydroxyl amine and its derivatives, having a dynamic shear viscosity at 50° C. of from 1 to 10 mPas as measured by rotational viscometry and comprising based on the complete weight of the composition, (A) of from 40 to 99.95% by weight of a polar organic solvent exhibiting in the presence of dissolved tetramethylammonium hydroxide (B) a constant removal rate at 50° C. for a 30 nm thick polymeric barrier anti-reflective layer containing deep UV absorbing chromophoric groups, (B) of from 0.05 to <0.5% of a quaternary ammonium hydroxide, and (C) <5% by weight of water; method for its preparation, a method for manufacturing electrical devices and its use for removing negative-tone and positive-tone photoresists and post etch residues in the manufacture of 3D Stacked Integrated Circuits and 3D Wafer Level Packagings by way of patterning Through Silicon Vias and / or by plating and bumping.

The invention discloses a method and a device for measuring sulfur content in coal by ultraviolet absorption spectroscopy. In the measurement method, the decomposition scale and a threshold are determined adaptively by combining empirical mode decomposition with 3sigma criterion, and non-stationary characteristics of differential absorption degree per se can be fully retained, so the spectral interference problem caused by dust, water vapor and background gas in combustion gas is effectively solved; the instantaneous concentration of SO2 is obtained through calculation according to the differential absorption degree after noise reduction and trend term removal, and the total sulfur content accumulated in the coal sample combustion gas is calculated through the gas flow; the sulfur content in the coal can be obtained by dividing the coal sample amount by the total sulfur content separated from the coal sample combustion; and the pretreatment process needed to be performed on the combustion gas by coulometric titration and an infrared absorption method is avoided. The device for measuring the sulfur content in the coal by the ultraviolet absorption spectroscopy comprises a combustion furnace, a measuring chamber, an ultraviolet light source, a spectrometer, an air purifying device, a flow meter, a waste gas treatment device, a computer, and the like.

The invention relates to a hindered amine group-contained benzotriazole compound shown as a formula I, wherein common symbols are defined as those in claim 1. The invention further relates to a method for preparing the compound, and a use of the compound provided by the invention or the compound prepared according to the method provided by the invention as a light stabilizer. The light stabilizer can effectively stabilize thermosetting resins, thermoplastic resins, polyamide or polyester fibers, organic dyes, preparation of cellulose paper, paper for photographic film, ink, white or colored wax and the like and has very effective ultraviolet absorption activity and hindered amine light stability.

The invention relates to a composite material of light-degradation antibiotic polylactic acid, which mainly comprises polylactic acid and nanometer TiO2, wherein, the content of polylactic acid is 90.0% to 99.0%, the content of nanometer TiO2 is 1.0%to 10.0%. The process for preparation comprises adding coupling agent to flow back for 2-4 hors under the temperature of 80 DEG C+-10 DEG C after dispersing nanometer TiO2 in methyl ethyl ketone, acetone or triethylamine disperser in ultrasonic, placing in a straight sealing tube with lactide after whizzing and drying, adding accelerating agent, and preparing in 150 DEG C +- 10 DEGC vacuum to polymerize for 2-4 hours. Compared with polylactic acid, the heat decomposition temperature, the glass transformation temperature and mechanical properties of the invention are all greatly improved, and the invention has the functions of antibacterial activity and ultraviolet absorption, the degradation rate is obviously accelerated under the radiation of ultraviolet light and natural conditions, and the invention has complete biodegradability. The composite material of light-degradation antibiotic polylactic acid of the invention adopts an in-situ polymerization, whose processing technology is simple, production cost is low, and application prospect is wide.

The invention discloses a wash-wear nonwoven fabric capable of selectively blocking ultraviolet rays, and belongs to the field of a functional textile, and particularly relates to a nonwoven fabric with an ultraviolet-proof function. The nonwoven fabric is prepared through the following steps: by adopting a large piece of graphene oxide as ultraviolet absorption padding, uniformly mixing the graphene oxide and water-based polymer resin in water to obtain a mixture, coating two sides of the nonwoven fabric with the mixture, and drying and molding the nonwoven fabric. The average transmittance of the nonwoven fabric in the long-wavelength ultraviolet area is less than 4 percent, and the ultraviolet-proof factor is more than 30, the transmittance of the nonwoven fabric in a visible light area is reduced by 30 to 50 percent compared with that of the pure nonwoven fabric, and the performance still can be maintained after the nonwoven fabric is severely stirred in water for 30 days. The wash-wear nonwoven fabric is simple, low in cost, environmentally friendly, suitable for industrialized mass production, high in selectivity, good in ultraviolet-proof performance, wash-wearable and good in flexibility, and a coating has small possibility of falling off, and can resist acid and alkali. The wash-wear nonwoven fabric can preserve the heat and can be used in fields such as ultraviolet protection clothing, ultraviolet protection screen windows and ultraviolet protection paulin.