108results about How to "Improved UV protection" patented technology

The invention discloses high-weather-resistance high-stain-resistance white paint for outdoor woodware and a preparation method of the paint. The high-weather-resistance high-stain-resistance white paint for the outdoor woodware comprises the following components in percentage by weight: 28-32% of water-based pure acrylic emulsion, 28-32% of water-based self-crosslinking acrylic emulsion, 22-27% of titanium dioxide pulp, 0.2-0.3% of a defoaming agent A, 2-3% of a film forming additive, 1.5-2% of wax emulsion, 0.3-0.5% of a light stabilizer, 0.5-1% of nanometer zinc oxide pulp, 0.1-0.15% of a first in-tank preservative, 0.2-0.4% of mildew-proof algaecide, 0.2-0.3% of a substrate wetting agent, 0.2-0.7% of a first thickening agent and 3.85-16.3% of deionized water or purified water. The high-weather-resistance high-stain-resistance white paint for the outdoor woodware is resistant to weather, stain and water, low in smell and VOC and excellent in environmental protection and safety comprehensive performances; the preparation method is simple in process and low in cost.

The invention discloses a preparation method for a sodium alginate-nano silicon dioxide compound film. Through a series of technical means of performing in-situ compounding on sodium alginate and nano silicon dioxide, performing ultrasonic defoaming treatment before film casting, increasing the concentration of sodium alginate by step control in a preparation process, controlling addition time and speed of hydrochloric acid and the like, so that nano silicon dioxide is ideally dispersed in a reaction system, an agglomeration phenomenon is avoided, and the sodium alginate/nano silicon dioxide film which is compact in structure, colorless, transparent, airtight, high in quality, degradable, good in waterproof performance and strong in ultraviolet-proof capability, has comprehensive performance indexes and is suitable for food packaging is prepared. Compared with the prior art, the preparation method has the characteristics of simple and easily controlled process, low preparation cost and the like.

The invention relates to a preparation method of a nano zinc oxide modified polyester fiber, and the method comprises the following steps: preparing the slices of the nano zinc oxide modified polyester fiber; and spinning by virtue of a blended FDY (Fully Drawn Yarn) technology. The preparation method disclosed by the invention can be finished on the common spinning equipment, silk flock strips are dry and even, colors are evenly distributed, the fabric is flat, and the polyester fiber has soft gloss. The preparation method can be widely applied to the fields of clothes, decoration and industry.

The invention discloses bedding fabric with antibacterial and cool functions and a post-finishing process thereof. The bedding fabric is formed by weaving blended yarn with antibacterial and cool functions. The blended yarn with antibacterial and cool functions is formed by blending linen fiber, chitin fiber staple and polyester filament yarn according to sirofil spinning technology. In the blended yarn with antibacterial and cool functions, the linen fiber and the chitin fiber staple are both wrapped on the surface of the polyester filament yarn. The post-finishing process includes the following steps: desizing and scouring-singeing-bleaching repeatedly through chlorine oxygen-cellulase washing-dying-washing and gentle stretching-preshrinking-finished products. The fabric finished products has cool touch, excellent antibacterial performance and good crease resistance. Compared with pure linen fabric, the fabric is soft. Simultaneously compared with chitin fabric, the fabric has a certain body and is appropriate for bedding fabric in spring and summer.

The invention discloses a pressure sensor based on an organic field effect transistor and a preparation method thereof. The pressure sensor based on the organic field effect transistor comprises a substrate arranged at the lowest layer, wherein a gate electrode is arranged on the surface of the substrate, a dielectric layer is arranged on the upper surface of the substrate and the gate electrode,a semiconductor layer is arranged on the upper surface of the dielectric layer, a source electrode and a drain electrode are arranged on the semiconductor layer respectively, and an encapsulation layer is also arranged on the substrate and wraps the gate electrode, the dielectric layer, the semiconductor layer, the source electrode and the drain electrode inside, wherein the dielectric layer is made from a mixed material of bamboo cellulose and a biological dielectric material, content of bamboo cellulose is 50-75%, the semiconductor layer is made from a mixed material of bamboo fibers and a soluble biological semiconductor material, and cellulose content is 5-15%. The pressure sensor disclosed by the invention has the advantages that the bamboo cellulose can detect pressure with high sensitivity and high response, the dielectric layer doped with the bamboo cellulose and an organic semiconductor layer enable device stability to be higher and the pressure sensor device to be more environment-friendly, the preparation method and technology are easy to realize, a biological material functional layer can be well compatible, and environmental pollution in a preparation process is reduced.

The invention discloses a melt-blown composite nano-antibacterial super-soft non-woven material and a preparation method thereof. The melt-blown composite nano-antibacterial super-soft non-woven material comprises a first flexible met-blown layer, a first nano fiber antibacterial layer, a nano fiber hydrophilic layer, a second nano fiber antibacterial layer and a second flexible melt-blown layer, all of which are sequentially arranged from top to bottom. The first nano fiber antibacterial layer and the second nano fiber antibacterial layer are both formed by alternately laminating nanometer titania material layers and nano fiber antibacterial material layers. The melt-blown composite nano-antibacterial super-soft non-woven material achieves good softness, good hand feeling and high comfort through the first flexible met-blown layer and the second flexible met-blown layer. The nano fiber antibacterial material layers and the nanometer titania material layers are alternately laminated to form a continuous antibacterial body, so that the non-woven material has a lasting antibacterial effect. The nanometer titania layers have a good ultraviolet-proof function. Then non-woven material has a good hydrophilic property through the nano fiber hydrophilic layer.

The invention discloses a weaving method of carbon fiber electromagnetic shielding fabric with antibacterial, anti-odor and anti-ultraviolet function, referring to the weaving method field of the electromagnetic shielding fabric, wherein in the weaving method, the electromagnetic shielding fabric is woven by spinning, weaving, pre-oxidizing, carbonizing and weaving bamboo fibers and carbon fibers. The electromagnetic shielding fabric woven by the invention can shield electromagnetic wave well and reduce damage of the electromagnetic wave for body; because of the bamboo fibers, the fabric has good ventilation performance and with antibacterial, anti-odor and anti-ultraviolet function.

The invention discloses a method for preparing a nano TiO2 composite leather greasing agent with an ultraviolet protecting function. At present, the research on the application of nano TiO2 and hydrogenated ricinoleic acids to the leather greasing agent has been rarely reported at home. Rutile nano TiO2 with an excellent anti-ultraviolet capability is prepared by adopting a chemical precipitation method, and is modified with the hydrogenated ricinoleic acids, and modified rutile nano TiO2 and maleic anhydride react to obtain the TiO2 composite leather greasing agent with the ultraviolet protecting function. The ultraviolet protecting performance is realized by the hydrogenated ricinoleic acids and rutile nano TiO2. The hydrogenated ricinoleic acids are ricinus oil derivates, and the greasing agent manufactured in such a way that double bonds in molecules of the hydrogenated ricinoleic acids are subjected to hydrotreating is excellent in ultraviolet protecting performance. An electron hole formed in the surface of the rutile nano TiO2 has the advantages of relatively high recombination speed and relatively high UV-shielding capability, and the leather is provided with the ultraviolet protecting function.

The invention relates to the field of functional films, in particular to a transparent lacquer protective film and application thereof. In order to solve the problem that the current lacquer protective film has poor impact resistance and large water contact angle, the invention provides a transparent lacquer protective film and application thereof. The transparent lacquer protective film providedby the invention comprises a self-healing layer, a substrate layer and a pressure-sensitive adhesive layer. The raw materials of the self-healing layer are composed of the following materials (by weight): 55-80 parts of polyol resin, 3-18 parts of a crosslinking agent, 5-32 parts of inorganic nanoparticles, 0.2-3 parts of a catalyst, and 0.5-3 parts of an ultraviolet light absorber. The prepared lacquer protective film not only has high light transmittance and self-repairing property, but also has excellent performances such as high impact performance and low water contact angle. The lacquer protective film provided by the invention has simple preparation process, is easy to operate, and is convenient for industrial production.

The invention relates to a method for preparing a nano-ZnO (zinc oxide) modified polyester pre-oriented yarn. The method comprises preparation of modified polyester melt and preparation of direct-spun polyester pre-oriented yarn (POY); and in the process of preparing a modified polyester melt, a pure terephthalic acid (PTA) and an ethylene glycol (EG) monomer are taken as raw materials, and a nano modifier is added so as to prepare a modified copolyester melt, then the polyester melt is directly conveyed by a melt, and through carrying out metering, spinning assembly extrusion, air blast cooling, oil applying, channel passing, and winding on the polyester melt, a nano-ZnO modified polyester pre-oriented yarn is obtained. A fiber prepared by using the method provided by the invention has a good ultraviolet-resistant function, and the ultraviolet reflection capacity of the fiber is as high as 50-60%.

The invention discloses a preparation method and application of textile ultraviolet-proof finishing agent. The ultraviolet-proof finishing agent on the current market has the problems such as non-ideal ultraviolet-proof effect, bad fastness-to-washing and the like. The preparation method of the textile ultraviolet-proof finishing agent comprises the steps of making low polymer polyhydric alcohol, diisocyanate, hydrophilic chain extender, catalyst and solvent react at the temperature of 70-100 DEG C for 4-8 hours, when mass percentage of isocyanato reduces to 0.5% or below, stopping the reaction to acquire a prepolymer, cooling the prepolymer to 30-60 DEG C, adding a neutralizing agent, stirring the mixture for 15-30 minutes, adding an ultraviolet absorbing agent into the system, continuing to stir until the mixture is uniformly mixed to acquire transparent viscous liquid, adding deionized water into the transparent viscous liquid for emulsification, and finally acquiring stable light yellow nano-emulsion. The clothes treated with the textile ultraviolet-proof finishing agent not only have an excellent ultraviolet-proof function, but also have excellent washing fastness.

The invention relates to a mosquito-repelling and sun-proof composite functional microcapsule and a preparation method thereof. The composite functional microcapsule comprises a capsule wall supporting an ultraviolet absorption material and a capsule core wrapped in the capsule wall, wherein the ultraviolet absorption material is acidified lignin, and the capsule core is a mixture of a plant-basedmosquito repellent and an ultraviolet absorbent. The synergistic interaction between the lignin and the ultraviolet absorbent can be effectively utilized, and an excellent ultraviolet protection function can be realized on the basis of lasting mosquito repelling. The composite functional microcapsule has important application value in the fields of summer clothes, daily cosmetics and the like.

The invention discloses an anti-ultraviolet fabric. A fabric body comprises a grey layer undergoing ultraviolet resistance and water repellency treatment, the inner side of the grey layer is adhered with an anti-ultraviolet layer, the surface of the anti-ultraviolet layer is adhered with a filling layer, the thickness of the anti-ultraviolet layer is 0.005 mm, and the thickness of the filling layer is 0.03 mm; and the gram weight of the grey layer is 75 g/m<2>, the warp tightness is 43.3%, the weft tightness is 28.9%, the total tightness is not less than 59.69%, the fineness of a single warp yarn fiber is less than 2.2 dtex, and the fineness of a single weft yarn fiber is less than 2.2 dtex. The anti-ultraviolet fabric has anti-ultraviolet function, ventilation and moisture permeation functions, and improved washability.

The invention discloses a gradient laminated glass and a preparation technology thereof. The gradient laminated glass comprises a glass sheet, a soundproof film and a gradient film, the glass sheet comprises a first glass sheet and a second glass sheet, the soundproof film and the gradient film are located between the first glass sheet and the second glass sheet, and the soundproof film is in contact with the second glass sheet; and the soundproof film comprises PVB resin, trans-polyisoprene rubber, a plasticizer, hollow glass beads, ABS resin, a maleic anhydride-grafted ethylene-vinyl acetatecopolymer, a borax crosslinker, modified diatomite, bentonite, glass fibers, rosin, a heat insulating material and an ultraviolet absorber. The preparation technology of the gradient laminated glasscomprises the following steps: S1, cleaning the glass sheet; S2, sheet combination; S3, hot press molding. The gradient laminated glass of the invention has the advantages of good soundproof effect and high carrying capacity.

The invention relates to an outdoor ultraviolet-proof advertisement board. The outdoor ultraviolet-proof advertisement board comprises a paper base plate layer, wherein an ink layer is arranged on the upper surface of the paper base plate layer, a waterproof PVC film layer and an ultraviolet-proof layer are sequentially formed on the upper surface of the ink layer from top to bottom, the ultraviolet-proof layer is a transparent film layer coated with a reflective ultraviolet material, the thickness of the ultraviolet-proof layer is 0.5-6mm, the ink layer is fixed on the paper base plate layer by a bonding layer, the bonding layer is formed by a polymer binder, a magic tape or the like, the paper base plate layer comprises an upper surface layer, a lower surface layer and a filling layer arranged between the upper surface layer and the lower surface layer, and the filling layer is of a honeycomb structure or a latticed structure. The outdoor ultraviolet-proof advertisement board has a simple structure and a good ultraviolet-proof function, and the contents of an advertisement cannot fade easily when the outdoor ultraviolet-proof advertisement board is used outside, so that the outdoor ultraviolet-proof advertisement board has long service life; and besides, the outdoor ultraviolet-proof advertisement board has good waterproof property and good tensile performance.

The invention discloses a breathable cool ultraviolet ray proof woven fabric, and relates to a woven fabric. The fabric is formed by interlacing warp yarns and weft yarns, at least one of the warp yarns or the weft yarns has a structure in which roving and spun yarns are uniformly mixed and arranged, the warp yarns and the weft yarns are interlaced to form a uniformly distributed and convex line structure or mesh structure on the fabric surface, the cross sections of fibers in the warp yarns and the weft yarns are polygons with a plurality of lobes, and the adjacent fibers conform to each other. Compared with the prior art, special weaving is conducted on the yarns with special structures, so that the fabric is provided with a concave-convex structure, does not fully fit a human body, canmaintain the ventilation between the fabric and the human body, and has the effect of quick sweat absorption and perspiration, the special structures of the yarns also keep the tightness between the yarns, and prevent ultraviolet rays from irradiating, and the fabric has the effect of isolating the ultraviolet rays.

The invention relates to a method for preparing a modified polyester fully drawn yarn with ultraviolet resistance, which comprises the preparation step of condensing and polymerizing modified polyester melt and the preparation process of directly spinning the polyester fully drawn yarn (FDY). In the preparation process of condensing and polymerizing modified polyester melt, the modified co-polyester melt is prepared from pure terephthalic acid (PTA) and ethylene glycol (EG) monomers as raw materials by adding nano zinc oxide. The polyester melt is directly transported through a melt, extruded through metering and spinning assemblies, cooled by blowing air, oiled and wound by a channel, a first yarn guide roller and a second yarn guide roller to prepare the modified polyester fully drawn yarn. The prepared fiber has good ultraviolet resistance, and the reflecting ability to ultraviolet rays reaches as high as 50-60%. The prepared fiber has stable contraction rate, uniform dyeing and excellent spinning performance.

The invention relates to composite ultraviolet-proof finishing liquid. The composite ultraviolet-proof finishing liquid comprises 25-30 g/L of nanometer oxide, 15-30 g/L of metallo chelate, 20-30 g/L of synergist, 15-20 g/L of ethyl alcohol, 10-15 g/L of methyl alcohol, 10-15 g/L of urea, 2-4 g/L of glycerinum, 0.5-1 g/L of polyoxyethylene ether, 0.5-1 g/L of azodiisobutyronitrile, 0.3-1 g/L of flatting agent, 0.2-1 g/L of antifoaming agent, and 1-2 g/L of curing agent, water serves as the solvent, the nanometer oxide is the powder mixture of ZnO, TiO2 and SiO2. Woven cloth treated through the finishing liquid has the excellent ultraviolet-proof function, the shading coefficient reaches to over 70%, the ultraviolet light shielding rate reaches to over 98%, and the ultraviolet protection factor (UPF) is higher than 40.

The present invention discloses a weatherproof wood oil, including tung oil as well as modifier. The tung oil covers 47.5 to 77.5wt percent, modifier 17.5 to 47.5wt percent; the total weight percent of the tung oil and the modifier is not less than 95 percent, and the total percent of water and foreign substances is not bigger than 5 percent. The wood oil becomes dry rapidly after painting, and has better moisture-proofing, fungi-proofing, sun-screening and antibiotic effects, sound desquamation-proofing and ultraviolet-proofing functions. The weatherproof wood oil prepared by the method is characterized by light fragrance and environment-friendly features.

The invention relates to a manufacturing technology for a resin lens with high refraction index and high abbe number. The manufacturing technology is implemented through the following steps: cleaning a mould, and then assembling the mould; adding a component B, a component C and an ultraviolet light absorbent into a mixing barrel, and uniformly mixing; adding a catalyst, a release agent, a blue organic pigment and a red organic pigment, uniformly mixing, adding a component A, and uniformly mixing; filtering, then, injecting raw materials into the assembled mould, and sealing the mould; performing primary solidification on the filled mould, prying the solidified mould, and separating out the mould and molded lenses; trimming the lenses; performing multi-grooved ultrasonic cleaning and secondary solidification on the trimmed lenses; inspecting the lenses subjected to the secondary solidification, and selecting a qualified lens; coating the qualified lens with a film, then, performing hardening solidification on the lens coated with the film; evaporating an antireflection film on the hardened lens. The refraction index of the lens manufactured by adopting the manufacturing technology is 1.693-1.701, and the abbe number of the lens is 34-37.

The invention relates to the field of cloth production, in particular to anti-ultraviolet moisture-absorbing breathable cloth and a preparation method thereof. The cloth is formed by blending of bamboo charcoal fiber, sugarcane fiber, wood fiber, combed cotton fiber and Longxiang taro fiber. Made cloth fibers have an excellent anti-ultraviolet function, are non-toxic and harmless to the human body, have good fiber toughness and high strength, are not subjected to ageing easily, and do not fade easily due to strong capability of adsorption to coloring agents.