51results about How to "Improve light resistance" patented technology

The invention relates to a method for preparing a high-performance plate by using an ex-service wind power blade, the high-performance plate and application of the high-performance plate, and the method comprises the following steps: separating the ex-service wind power blade into fiber strips, reinforcing ribs, glass fiber reinforced plastic crushed materials, blade powder and balsa wood-PVC powder, and respectively treating the materials to prepare each component of the multi-effect high-performance plate; and finally, all the components are subjected to compression molding treatment to be manufactured into the multifunctional high-performance plate, all the components of the retired wind power blade can be recycled, and then the disposal problem of the retired wind power blade can be solved. And moreover, the glass fiber filaments obtained by degrading the retired wind turbine blade and the thermosetting resin form the reinforced panel, so that the strength of the multifunctional high-performance plate can be improved while the stability of the overall structure of the reinforced panel is ensured. In addition, compression molding treatment is performed by fully utilizing the characteristics of different parts, so that the illumination resistance of the board can be improved, the board is not easy to deform due to water absorption, and the applicability of the board can be further improved.

The invention provides a high-temperature-resistant iron-chromium black pigment as well as a preparation method and application thereof, and belongs to the technical field of pigments. The preparation method comprises the following steps: preparing porous SiO2 / Al2O3 nanospheres, modifying the surfaces of the porous SiO2 / Al2O3 nanospheres by using tannic acid, depositing iron-containing and chromium-containing precipitates in situ, impregnating zirconium, calcining to obtain a precursor, and modifying the surfaces of the porous SiO2 / Al2O3 nanospheres by using polydopamine to obtain the high-temperature-resistant iron-chromium black pigment. The high-temperature-resistant iron-chromium black pigment prepared by the preparation method disclosed by the invention contains an aluminum element, so that the high-temperature-resistant, heat-resistant and flame-retardant properties of a prepared precursor are greatly improved, and the high-temperature-resistant iron-chromium black pigment contains silicon oxide, so that the temperature resistance and the wear resistance are obviously improved, and the high-temperature-resistant iron-chromium black pigment is relatively uniform in black, uniform in particle size, good in weather resistance and light resistance, good in dispersity and wide in application prospect.

The invention provides a UV fixing adhesive for fixing a photovoltaic module, a preparation method and application, the UV fixing adhesive is characterized by comprising, by mass, 50-70% of polyurethane acrylic resin, 30-50% of a reactive diluent, 1-4% of a photoinitiator and 0-2% of fumed silica; the reactive diluent comprises an acrylic diluent and a thiol diluent in a mass ratio of (0.5: 1)-(6: 1); according to the selected polyurethane acrylic resin, the refractive index range of an acrylic acid diluent is 1.460 to 1.500, and the refractive index range of a mercaptan diluent is 1.500 to 1.525. According to the invention, the oxygen inhibition problem is solved by increasing the dosage of the photoinitiator and selecting the mercaptan diluent and the high-activity resin or monomer, meanwhile, the bright line problem is solved by selecting the resin or monomer within a certain refractive index range, and the trace problem is solved by selecting the yellowing-resistant and shrinkage-resistant resin or monomer, so that the glue has excellent curing and aging-resistant properties, and the service life of the glue is prolonged. And the light utilization rate of the photovoltaic module is improved.

The invention relates to the field of ink, in particular to water-based ink for cigarette package printing and a preparation method of the water-based ink, and the water-based ink is prepared from the following components in parts by weight: 30-60 parts of water-based acrylic emulsion, 16-32 parts of water-based styrene-acrylic emulsion, 21-36 parts of enhanced pigment filler, 0.2-1.2 parts of dispersing agent, 0.1-1 part of defoaming agent, 0.6-1.8 parts of flatting agent, 2.3-4.6 parts of coalescing agent and 20-40 parts of deionized water. According to the present invention, the traditional pigment is replaced with the enhanced pigment filler, such that the good dispersion and the good adhesion are provided, and the glossiness, the dyeing property and the light resistance are significantly improved.

The invention discloses a nitrogen-rich hydrothermal liquid-phase high-quality biomass-based carbon dot and a preparation method thereof, and belongs to the field of thermochemical treatment. According to the method, an enzymatic reaction and a hydrothermal carbonization technology are combined, the nitrogen-rich biomass is converted into hydrothermal carbon and an aqueous solution with high added value, the nitrogen element in the raw material is more efficiently transferred into a liquid-phase product through enzymatic pretreatment before hydrothermal carbonization treatment, and meanwhile, the fluorescence quality of the liquid-phase product is improved; the liquid-phase product can be used for preparing a high-quality carbon dot material, so that resource utilization of nitrogen-rich biomass is realized, and the method has relatively high ecological benefits and economic benefits.

The invention discloses a water-based propylene painting pigment and a preparation method thereof, and relates to the technical field of painting pigments. When the water-based acrylic painting pigment is prepared, hydroxyethyl cellulose, methyl acrylate, butyl acrylate and an allyloxy triazine ultraviolet absorbent are subjected to a reaction, and a cellulose-acrylate copolymer emulsion is prepared; the preparation method comprises the following steps: reacting tetramethylcyclotetrasiloxane with N, N ', N' '-[(2, 4, 6, 8, 8-pentamethylcyclotetrasiloxane 2, 4, 6-triyl) tri (oxy)] tri (N-ethyl-ethane) to obtain a siloxane oligomer; the preparation method comprises the following steps: reacting nano titanium dioxide with a siloxane oligomer and 1-chlorohexane in sequence to prepare functionalized nano titanium dioxide; and uniformly mixing the cellulose-acrylate copolymer emulsion, the functionalized nano titanium dioxide, pigment toner, a dispersing agent, a defoaming agent and water to prepare the water-based acrylic painting pigment. The prepared water-based propylene painting pigment has excellent mildew resistance, high temperature resistance and light resistance.

The invention discloses a preparation method of a pigment red 254 coloring composition for a color filter, and belongs to the technical field of preparation of pigment coloring compositions. The pigment red 254 is subjected to bromine substitution treatment through bromination reaction, active sites are provided for modification of the acrylate monomer, the pigment is modified by utilizing the acrylate monomer through Heck reaction, pigment molecules are promoted to form solvated chains through modification of the acrylate monomer, and the surface energy of the pigment molecules is effectively reduced; according to the present invention, the affinity of the pigment red 254 in the dispersion medium is significantly improved, the agglomeration phenomenon is reduced, the particle size of the pigment red 254 is effectively reduced, the uniformity and the stability of the coloring composition are ensured, the coloring power of the pigment is improved, and the performance of the pigment in the final product is enhanced. Through the preparation method, the application range of the pigment red 254 is expanded, and the pigment red 254 can be more effectively applied to multiple fields such as color filters and printing ink.

The present application relates to the field of coatings, and in particular to a coating material for a film-coated aluminum plate and a preparation method thereof. The coating material for a film-coated aluminum plate comprises, by weight, 75 to 95 parts of aqueous polyurethane emulsion, 25 to 40 parts of modified functional resin, 20 to 30 parts of modified particles, 5 to 15 parts of auxiliary agent, 6 to 12 parts of dispersant, 2 to 5 parts of adhesion promoter, 5 to 8 parts of curing agent, 1.5 to 3 parts of leveling agent, 0.5 to 1.5 parts of defoaming agent, and 140 to 200 parts of deionized water. The coating material for the laminated aluminum plate prepared in the present application uses polyurethane as the main material to ensure its adhesion to the laminated aluminum plate, and on this basis, greatly enhances the waterproofness, antistatic properties, weather resistance, light resistance and other properties of the coating material during long-term use. Different from the existing surface coating materials for laminated aluminum plates, it can take into account and balance multiple surface properties, thereby enhancing the application effect of the laminated aluminum plate, avoiding the technical problems of the existing coating materials for laminated aluminum plates, and has very excellent market and application prospects.

The application belongs to the technical field of electromagnetic wave absorbing composite materials, and discloses a high-strength electromagnetic wave absorbing composite material and a preparation method thereof.The high-strength electromagnetic wave absorbing composite material is composed of a wave-transparent layer, a loss layer and a reflection layer, wherein the wave-transparent layer is prepared from glass fiber cloth, quartz fiber cloth, epoxy resin, wave-absorbing polyurethane foam and ultraviolet absorber, the loss layer is prepared from silicon carbide, graphite, conductive fiber, corrosion inhibitor and antioxidant, and the reflection layer is prepared from carbon fiber, graphite, copper powder and preservative.The wave-transparent layer obtained by adding ultraviolet absorber and epoxy resin can enhance the corrosion resistance and light resistance of the wave-transparent layer, the loss layer obtained by adding corrosion inhibitor and antioxidant can enhance the corrosion resistance of the loss layer, and the reflection layer obtained by adding preservative can resist corrosion at the connection between the electromagnetic wave absorbing composite material and other articles, so as to enhance the comprehensive strength of the electromagnetic wave absorbing composite material.

This invention discloses a light-resistant biodegradable plastic, its preparation method, and its application in dustproof netting. The raw material composition of the light-resistant biodegradable plastic, by weight, includes: 60-70 parts polylactic acid (PLA), 10-15 parts lignin, 5-10 parts toughening agent, 5-8 parts UV-shielding agent, 3-5 parts compatibilizer, 1-2 parts composite nucleating agent, and 0-0.5 parts colorant. The UV-shielding agent is composed of sericite, glass microspheres, and fluorite powder. The layered structure of sericite and the spherical structure of glass microspheres reflect ultraviolet light from multiple angles, while the fluorite powder absorbs and converts the transmitted ultraviolet light, thereby shielding ultraviolet rays and increasing the light resistance of PLA. A compatibilizer is used to modify the nano-lignin, which absorbs ultraviolet light and converts the light energy into heat energy in a timely manner, preventing ultraviolet light from attacking the PLA chain segments. It has stable processability, low cost, and stable raw material supply, making it suitable for use in dustproof netting.

The invention discloses a water dispersible 123 light stabilizer which comprises the following components in percentage by mass: 40-60% of a light stabilizer 123, 10-20% of a nonionic emulsifier, 5-15% of an anionic emulsifier, 5-10% of sodium carboxymethyl cellulose and 2-5% of a phosphite antioxidant, and a pH regulator is used for regulating the pH value of a system to 7-9. The preparation method comprises the following steps: premixing, emulsifying and dispersing, homogenizing, and adjusting the pH value to obtain the water-dispersible 123 light stabilizer product. The light resistance of the material can be effectively improved; due to the water dispersion type, the water-based dispersing agent has good dispersity and can be more uniformly distributed in a water-based system, so that the quality stability of a product is improved; compared with some traditional light stabilizers, the stabilizer can be more conveniently applied to a water-based formula system, is beneficial to development of environment-friendly materials, plays a positive role in the fields of water-based paint, water-based ink and the like, and reduces the problem of material performance reduction caused by photochemical degradation.

The invention discloses a method for synthesizing a quinophthalone pigment, comprising the following steps: first, preparing modified quinophthalone; second, mixing and dispersing treatment; third, dissolving and adsorbing treatment; and fourth, mixing treatment of finished products. The invention uses titanium dioxide and a silane coupling agent to prepare the modified quinophthalone, so that the light resistance and stability of the modified quinophthalone can be improved, and the coloring ability can be improved, thereby effectively solving the problem that the traditional quinophthalone pigment has poor coloring ability. The modified quinophthalone mixed with a dispersant is loaded and adsorbed by using a gel filler to obtain a powder, which can be dissolved and mixed in various fields according to needs and then used, thereby effectively improving the applicable fields of the quinophthalone pigment. Moreover, green and environmentally friendly materials are used in the preparation process, and the reaction conditions are mild, so the quinophthalone pigment is applicable to industrialized mass production.

The invention provides an anti-wrinkle composition containing recombinant collagen. The anti-wrinkle composition containing the recombinant collagen is prepared from the following components in percentage by mass: 5 to 10 percent of recombinant human collagen, 0.5 to 1 percent of organic-inorganic-modified titanium dioxide, 1 to 3 percent of squalane, 1 to 2 percent of sodium hyaluronate, 15 to 35 percent of grease, 3 to 5 percent of emulsifier, 3 to 5 percent of additive and the balance of water, wherein the outer layer of the organic-inorganic-modified titanium dioxide is grafted by citric acid, and the inner layer of the organic-inorganic-modified titanium dioxide is titanium dioxide nanoparticles wrapped by a silicon dioxide layer. The organic-inorganic-modified titanium dioxide disclosed by the invention has good amphipathy, has good compatibility with other components such as recombinant human collagen, squalane and sodium hyaluronate, and can enhance the synergistic effect among the components and enhance the anti-wrinkle effect of the anti-wrinkle composition; meanwhile, the organic-inorganic modified titanium dioxide also has a good anti-ultraviolet effect, and the anti-wrinkle effect of the anti-wrinkle composition can be further enhanced.

The invention relates to a method for improving the performance of an aerogel coating by using water-based color paste. The method comprises the four steps of preparing water-based color paste nanoparticles, preparing environment-friendly coloring water-based color paste, preparing composite phase change aerogel slurry and adding the water-based color paste into aerogel. The preparation method comprises the following steps: adding water-based color paste nanoparticles and an environment-friendly dispersing agent, adding a microcapsule phase-change material in aerogel preparation, and adding a dispersing agent, bark extract and various auxiliaries in the final mixing process of the water-based color paste nanoparticles and the environment-friendly dispersing agent; the water-based color paste is added into the aerogel, so that a healthier and more environment-friendly coating choice is provided, the color brightness and durability of the paint are optimized, the appearance quality and the service life of electrical products related to the water-based color paste paint can be improved, and the water-based color paste paint has wide market prospects and application requirements.

The utility model provides a flocking fabric which comprises a base cloth layer which is a needle-punched non-woven fabric. The adhesive layer is positioned on the surface of the base cloth layer; the fluff layer is positioned on the surface of the adhesive layer and comprises polyamide fibers; the composite material has the advantages of proper thickness, favorable tear resistance, favorable light fastness, high touch feeling and excellent wear resistance, can be widely applied to automotive interior materials, including but not limited to parts such as ceilings, skylights and door plates, and meets the requirements of subsequent processing, thereby being more suitable for being applied to automotive interiors.

The utility model discloses light interference prevention light amplification transmission equipment, and relates to the technical field of light amplification transmission. The technical problem is that existing optical amplification equipment does not have the function of preventing optical interference, and optical signal transmission is easily affected. According to the technical scheme, the light interference prevention light amplification transmission equipment comprises a light shield and further comprises a transmission equipment body, mounting lugs, an interface, a first protection assembly, a second protection assembly and an opening and closing assembly; according to the light-interference-preventing light amplification transmission equipment, separation can be carried out according to the use requirements of a user through the first protection assembly so that optical fibers can be connected, a display structure can be exposed according to the use requirements of the user through the second protection assembly, the second protection assembly can be locked through the opening and closing assembly, and compared with a traditional transmission mode, the transmission efficiency is improved. The device has the structural design of preventing light interference, can effectively isolate and reduce the interference of external light to the performance of the device, and further realizes efficient and stable optical signal transmission in a complex light environment.

A cooling liquid for an immersion liquid cooling system, which is filled as a cooling liquid in an immersion liquid tank of the immersion liquid cooling system, and which contains 50 mass% or more of a hydrocarbon oil and does not contain an amine-based antioxidant, or in the case where the antioxidant is further contained, the amount of the hydrocarbon oil in the immersion liquid cooling system is 50 mass% or more relative to the total amount of the cooling liquid for the immersion liquid cooling system. The present invention relates to a liquid coolant for immersion cooling systems, which contains less than 0.01 mass% relative to the total amount of the liquid coolant for immersion cooling systems, has a 5% distillation temperature of 320 DEG C or more, has a% CN of 30.0 or less, and has a kinematic viscosity at 40 DEG C of 11.5 mm2 / s or more.

Provided is a polymer dispersed liquid crystal film having improved light resistance and capable of switching between a transparent state and a scattering state only in a predetermined region. A polymer-dispersed liquid crystal film according to an embodiment of the present invention comprises, in this order, a first conductive substrate, a polymer-dispersed liquid crystal layer comprising a polymer matrix, and liquid crystal droplets and a photopolymerization initiator dispersed in the polymer matrix, and a second conductive substrate. The polymer dispersed liquid crystal layer has, in plan view, a first region and a second region in which the amount of haze change after voltage application differs, and the amount of haze change after voltage application in the first region is smaller than the amount of haze change after voltage application in the second region. The liquid crystal droplets in the second region include a polymerizable liquid crystal compound and a non-polymerizable liquid crystal compound, the liquid crystal droplets in the first region include a liquid crystal polymer that is a polymer of the polymerizable liquid crystal compound and the non-polymerizable liquid crystal compound, and the first conductive substrate includes an ultraviolet blocking layer.

The present invention discloses a method for preparing a light matrix fertilizer for cultivating indocalamus container seedlings. The matrix fertilizer raw materials are calculated by weight and include: 10-15 parts of peat soil, 10-15 parts of forest surface soil, 40-50 parts of fermented bamboo residues, 10-20 parts of mushroom stick waste, 5-10 parts of manure, 5-10 parts of coal slag powder, 10-15 parts of expanded perlite particles, and 5-10 parts of cross-linked microcrystalline cellulose super absorbent resin. The light matrix fertilizer raw materials of the present invention are simple to prepare and low in cost. The indocalamus ramet container seedlings cultivated by using the matrix have high survival rate and new bamboo germination rate, strong new whip germination ability, and vigorous plant growth. At the same time, the seedling culture matrix has the characteristics of loose texture, light weight, good water retention and excellent anti-collapse performance, which is convenient for seedling transportation and mountain planting.

The invention discloses an anti-aging polyurethane sponge and a preparation method thereof, and belongs to the technical field of polyurethane preparation, adamantane modified graphene oxide is introduced in the preparation process of polyurethane to form a block copolymer, and the anti-aging performance and the mechanical performance of the material are improved; by introducing the ureido-modified polyethylene derivative, the water resistance, ultraviolet resistance and impact resistance of the polyurethane sponge are improved; the anti-aging polyurethane sponge prepared by the preparation method disclosed by the invention is excellent in anti-aging performance and excellent in mechanical property, and the service life of the polyurethane sponge is effectively prolonged.

This invention provides a method for dyeing with vat dyes in an overflow dyeing machine. The use of a dye premix significantly improves dyeing performance. The cationic properties of modified cationic starch electrostatically adsorb onto fabric fibers, allowing the coated dye particles to quickly and evenly adhere to the fabric surface. This avoids localized color differences caused by uneven dye dispersion in the dye bath, and the water flow impact in overflow dyeing prevents localized dye aggregation, effectively improving dyeing uniformity and ensuring consistent dyeing results for the same batch of fabrics. The stable structure formed by the cross-linking of modified cationic starch and vat dye forms a protective film on the fabric fiber surface after color fixation, enhancing the binding stability between the dye and fiber, reducing damage to dye molecules from external factors such as light, improving the dye's lightfastness and the fabric's sunlight fastness. Its film-forming properties also make the dye and fiber bond more firmly, preventing fading.

The invention relates to the technical field of wood dyeing, in particular to a process method for regulating and controlling a wood porous cell wall micro-nano structure and dyeing at low temperature. The method comprises the following steps that wood is subjected to delignification treatment in a mixed solution of NaOH and Na2SO3, and delignified wood is obtained; the delignified wood is placed in an H2O2 solution to be subjected to bleaching treatment, and bleached modified wood is obtained; and the bleached and modified wood is placed in a dyeing solution for dyeing treatment, and then color fixing treatment is conducted. According to the method, wood is subjected to delignification / bleaching to regulate and control a cell wall structure, the permeability is improved, micro-nano fluid channels are increased, and reaction binding active sites are increased; and the chemical reaction between the wood fiber and the dye is promoted to generate a fiber-dye covalent bond, so that the problems of color fading and the like of the wood under light, damp and hot conditions are prevented.

The invention relates to a preparation method of a flame-retardant and light-resistant core-shell type water-based acrylate resin coating, which comprises the following steps: adding water, an emulsifier and methacrylic acid into a reaction container, uniformly mixing and stirring, heating to 40-45 DEG C, stirring and reacting for 60 minutes, adding a monomer A, 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and an organic molybdenum compound, and emulsifying for 60-90 minutes; heating to 80-90 DEG C, dropwise adding an initiator, reacting for 1-2 hours, and reacting for 1-2 hours at 70-90 DEG C to obtain a core-layer emulsion; and simultaneously dropwise adding all monomers B and an initiator into all the obtained core-layer emulsion for 1 hour, keeping the temperature and stirring to react for 1.5 hours, adding hydroxypropyl propargyl ether and a coumarin derivative, reacting at 60-70 DEG C for 1 hour, cooling to 50 DEG C, adding an emulsifier, reacting for 30 minutes, and adding ammonia water to adjust the pH value to 7-8, thereby obtaining the flame-retardant and light-resistant core-shell type water-based acrylate resin coating. The obtained acrylate resin is good in molten drop resistance and light resistance.

The present application relates to a kind of naphthalimide derivative polymer dyes, yellow photosensitive resin composition and its application, the structure general formula of dye is as follows: general formula (I);Wherein, n is the positive integer of 1-100, 0 < a ≤ 100, 0 ≤ b < 100, and a+b=100;X1-X4 each is independently selected from any one of hydrogen atom, alkyl, aryl or heteroaryl substituent, Y1-Y5 each is independently selected from any one of hydrogen atom, alkyl, aryl or heteroaryl substituent, Z is selected from any one of oxygen atom, nitrogen atom or sulfur atom;R1-R3 each is independently selected from any one of hydrogen atom, alkyl, alkenyl, ether group, substituted alkyl, aryl or heteroaryl substituent.Compared with prior art, the naphthalimide derivative polymer dyes have high solubility, excellent light resistance and heat resistance, and the yellow photosensitive resin composition prepared based on the dye has high color density.

The fluorane dimer compounds of the present invention are represented by the following general formula (1).

The invention provides anti-forgery ink and a preparation method thereof. The anti-forgery ink comprises the following components in parts by weight: 25-40 parts of graphene quantum dots loaded with ionic liquid, 1-4 parts of a surfactant, 30-45 parts of epoxy acrylic resin, 5-15 parts of an adhesive and 80-110 parts of an organic solvent, the graphene quantum dot loaded with the ionic liquid is prepared by performing thermal reduction reaction on a carbon nano tube, graphene oxide and the ionic liquid and then reacting with perchloric acid. The prepared anti-forgery ink is moderate in viscosity, the retention rate of fluorescence intensity is high after the anti-forgery ink is placed in hot water of 80 DEG C, ultraviolet lamp irradiation and the extreme environment of ethyl alcohol for 10 h, especially light resistance, ethyl alcohol resistance and the retention rate of the fluorescence intensity can reach 86% or above, and the anti-forgery ink has good fluorescence stability.

The invention relates to the technical field of computer vision and robots, and provides a pharmacy unmanned vehicle path planning and drug matching method based on JPS and RRT algorithms, and the method comprises the steps: constructing a pharmacy environment map, and determining the real-time position of an unmanned vehicle; performing unmanned vehicle path planning by adopting a JPS-RRT * algorithm to obtain a final driving path; the method comprises the following steps: acquiring a target drug image, constructing a drug feature template library, periodically acquiring drug images in a current visual field, pre-processing the drug images, and matching the pre-processed drug images with the drug feature template library by adopting an SAD template matching algorithm to obtain a drug classification result; and controlling the unmanned vehicle to move to the target position according to the final driving path, and executing a corresponding medicine grabbing or sorting task according to a medicine classification result.

The present application provides a kind of display device laminated body, it is the display device laminated body with substrate layer and functional layer, wherein, the functional layer contains resin, organic ultraviolet absorber and inorganic ultraviolet absorber, the transmission yellow degree determined by the colorimetric method without using integrating sphere is set as the 1st transmission yellow degree, the transmission yellow degree determined by the colorimetric method using integrating sphere is set as the 2nd transmission yellow degree, when the value obtained by the 1st transmission yellow degree of the display device laminated body minus the 2nd transmission yellow degree of the display device laminated body is 0.4 or more.

A novel fluorescent protein and uses thereof are provided. A polypeptide of the present invention has a fluorescence property, the polypeptide being indicated in any one of (1) to (3) below: (1) a polypeptide having an amino acid sequence set forth in SEQ ID NO: 1; (2) a polypeptide having an amino acid sequence set forth in SEQ ID NO: 1, the amino acid sequence having replaced, deleted, inserted, and / or added therein not less than 1 and not more than 32 amino acids; and (3) a polypeptide having not less than 85% sequence identity with respect to an amino acid sequence set forth in SEQ ID NO: 1.