70 results about "Ultraviolet resistance" patented technology

The utility model relates to textile material technical field, concretely is an ecological waterproof ultraviolet resistance composite function fabric, including by waterproof layer, ultraviolet resistance layer, skin breathable layer is composed of whole, waterproof layer, ultraviolet resistance layer, skin breathable layer is by waterborne polyurethane hot melt adhesive point -like adhesion, waterproof layer, ultraviolet resistance layer, skin breathable layer edge adopts ultrasonic seamless compression process closed, the waterproof layer is by the regenerated polyester fiber and flax fiber blend weaving and is formed, the waterproof layer surface is treated by fluorine -free environmental protection waterproof agent dip -mull, the ultraviolet resistance layer is by the yarn weaving that organic cotton fiber and nano zinc oxide particle blend spinning are made, the utility model discloses waterproof layer, ultraviolet resistance layer, skin breathable layer triple structure design, combine environmental protection technology and realize multifunctional synergy, make the whole have high waterproofness, strong ultraviolet resistance and excellent air permeability.

The utility model discloses an environmental protection PVC composite film, this environmental protection PVC composite film includes: base layer, first adhesive layer, second adhesive layer, first surface layer and second surface layer, first adhesive layer and second adhesive layer are correspondingly set respectively in the both sides surface of base layer, first surface layer is correspondingly set in the one side surface of first adhesive layer back to base layer, second surface layer is correspondingly set in the one side surface of second adhesive layer back to base layer, to form multilayer composite structure, base layer is set to be enhanced type modified PVC layer, first surface layer is set to be degradable ultraviolet resistance layer, second surface layer is set to be degradable barrier layer. The utility model discloses an environmental protection PVC composite film is based on the composite forming between base layer, first surface layer and second surface layer, and the degradable composite film with ultraviolet resistance function and water isolation function is obtained thereby, at the same time, while guaranteeing the functionality of PVC composite film, the degradability of PVC composite film is strengthened, and the environmental friendliness of PVC composite film is greatly improved.

The application discloses an anti-aging overhead insulated cable and relates to the technical field of cables.The cable comprises a core assembly coated with cross-linked polyethylene; further comprises an inner sheath, an armor layer and an outer sheath which are sequentially wrapped around the plurality of core assemblies from inside to outside; a plurality of concave units one are connected through connecting grooves and are arranged on the surface of the outer sheath to break the continuous water film tension on the surface of the outer sheath and increase the diffuse reflection area of ultraviolet rays; concave units two are arranged on the armor layer, and the concave units two store water-blocking medium which expands when meeting water; the anti-aging protection system is constructed from outside to inside, and the various structures are synergistically combined, so that the performance of the cable is improved in terms of ultraviolet resistance, water resistance and spread prevention and efficient heat dissipation, the bottleneck of only relying on material improvement in the prior art is broken, and the anti-aging performance of the overhead cable in a complex outdoor environment is remarkably improved.

The application discloses a modified silane coupling agent and a preparation method thereof, an anti-yellowing dealcoholized sealant and application thereof, and a preparation method of the anti-yellowing dealcoholized sealant. The preparation method of the anti-yellowing dealcoholized sealant comprises the following steps: A100, carrying out dehydration homogenization treatment on alpha, omega-dihydroxypolydimethylsiloxane, dimethyl silicone oil and a filler under a vacuum condition to obtain a first base material; A200, blending and treating a part of a crosslinking agent and the first base material under the vacuum condition to obtain a second base material; A300, providing a modified silane coupling agent, blending and treating another part of the crosslinking agent, the modified silane coupling agent and a catalyst under the vacuum condition to obtain the anti-yellowing dealcoholized sealant. The modified silane coupling agent is prepared by blending a silazane compound with a trimethylsilyl group and a silane compound with a primary amino group and a hydrolysable silicon functional group, which is favorable for reducing the amino oxidation activity and thus improving the ultraviolet resistance, thermal oxygen aging capacity and storage stability of the anti-yellowing dealcoholized sealant.

The application discloses a car paint protective film with scratch self-repairing function and a preparation method thereof, and belongs to the technical field of car paint protective films. Firstly, nano cerium dioxide is modified by epoxy silane and grafted with polyethylene imine to obtain polyethylene imine grafted nano cerium dioxide, and amino-containing hyperbranched polysiloxane is prepared by taking 1,6-hexanediol and gamma-aminopropyl triethoxysilane as raw materials; then, epoxy-terminated self-repairing polyurethane is obtained by taking polycarbonate diol as a soft segment, isophorone diisocyanate as a hard segment, adding bis(4-hydroxyphenyl) disulfide for chain extension and then performing epoxy propanol end-capping treatment; finally, the polyethylene imine grafted nano cerium dioxide, the amino-containing hyperbranched polysiloxane and the epoxy-terminated self-repairing polyurethane are compounded and cured to construct a synergistic system of ultraviolet blocking, dynamic self-repairing and interface enhancement, so that the material has good self-repairing ability and ultraviolet resistance, and meets the use requirement of long-acting protection of a car paint surface.

The application relates to a preparation method of a biodegradable flexible radiation refrigeration film, and relates to a preparation method of a radiation refrigeration film. The application aims to solve the problem that the existing polymer radiation cooling material cannot simultaneously have excellent ultraviolet resistance, cooling performance and biodegradation. The method comprises the following steps: one, preparation of a spinning solution; two, synthesis of nanometer and micrometer EC fibers by using electrostatic spinning. The application is used for the preparation of the biodegradable flexible radiation refrigeration film.

The utility model relates to acrylic plate technical field especially relates to acrylic flash point structural board, include: board body, the inside of board body is equipped with the accommodating groove of one end is open, and the side wall department of board body is equipped with two positioning holes close to the opening, and two positioning holes all in -line are equipped with the magnetic block of embedding, the bale, the bale is bonded and is pasted in the outer wall of board body, the pattern board, the pattern board is inserted in the accommodating groove and is consistent with the size of accommodating groove, the seal, both ends of seal are all solid and are equipped with the magnetic column, and the magnetic column is inserted in the positioning hole and is connected with the magnetic block magnetic suction, this acrylic flash point structural board can realize the replacement of different patterns and can improve the protectivity of acrylic plate, and can make the light source of side surface luminous homogenization, make the whole pattern display effect better, clearer, and have the flash silver effect, can improve the ornamental value, can strengthen the ultraviolet resistance ability simultaneously, prevent the board material aging, discoloration, improve the wear resistance and self -cleaning.

The present application relates to a kind of environment-friendly water-based acrylic resin low-temperature pavement long-life rapid repair material and its application, including water-based acrylic resin binder, graded aggregate and binder content.The rapid repair material of the present application can effectively reduce the harm to the environment and construction personnel, and is suitable for city roads, residential areas and other places with strict environmental requirements;At the same time, the problem that traditional asphalt and epoxy resin are difficult to cure at low temperature is solved, the all-year construction time is significantly prolonged, and it is especially suitable for use in cold northern regions;It has excellent durability, ultraviolet resistance and anti-aging ability, and the repair layer is not easy to crack and peel off.

The application provides a polyxanthate compound and a preparation method thereof, and relates to the technical field of organic polymer synthesis. The application adds a dihydric alcohol compound, alkali and carbon disulfide into an organic solvent, and stirs and reacts; a dihalogenated compound is added into the foregoing reaction system for reaction, stirring, precipitation, drying, and thus a polyxanthate compound is obtained. The application has the characteristics of mild reaction conditions, simple operation, and easily available raw materials, and the obtained polyxanthate compound has excellent solubility, thermal stability, ultraviolet resistance and refractive performance.

The application discloses an organic-inorganic hybrid formaldehyde-free fixing agent and a preparation method and application thereof, and belongs to the technical field of textile auxiliaries. The fixing agent is prepared by using dimethyl diallyl ammonium chloride and methacryloyloxyethyl trimethyl ammonium chloride as reaction monomers, N-vinyl pyrrolidone as an organic modifier, and trisodium phosphate and bismuth nitrate as inorganic modifiers, and the organic-inorganic hybrid crosslinking structure is formed through a polymerization reaction. The preparation method comprises the following steps: pre-complexing bismuth nitrate and citric acid, pre-activating a silane coupling agent, mixing the components, and then performing stage pH regulation, ultrasonic-assisted dispersion, high-temperature curing and other steps. The fixing agent is prepared by means of coordination crosslinking of an organic polymer chain and bismuth ions and covalent connection of a silane coupling agent, so that a double network structure is formed, the wet rubbing fastness and the soaping fastness are significantly improved, the fabric is endowed with antibacterial and ultraviolet resistance functions, the hydrophilicity and the hand feeling are improved, and the fixing agent does not contain formaldehyde, and can be widely applied to post-treatment of textile dyeing.

The application relates to a solar cell module and a preparation method thereof, a photovoltaic system and a power utilization device. The solar cell module comprises a substrate and at least two cell parts. The at least two cell parts are sequentially arranged on the surface of the substrate along a first preset direction. The cell part comprises a cell unit, the cell unit comprises a PN junction, a first insulating layer and a sub-cell which are sequentially arranged on the substrate, and the band gap of the PN junction is greater than or equal to 1.8 eV. The solar cell module has good ultraviolet resistance.

The present disclosure provides a profile and a forming method thereof, the forming method comprising: forming continuous fibers coated with an infiltrating material into an initial profile; and coating a coating material in a molten state on the initial profile to form a profile, wherein the coating material comprises a thermoplastic material. The forming method of the profile provided by the present disclosure has good mechanical properties of the formed initial profile, and the coating layer formed on the surface of the profile has good weather resistance, ultraviolet resistance, anti-aging, hydrolysis resistance and wear resistance.

The application belongs to the technical field of natural polymer materials, and discloses a chitosan-protein biomimetic composite material based on hot melt processing, and a preparation method and application thereof.The preparation method comprises the following steps: mixing chitosan, protein, tannic acid, metal oxide and a protonating agent to obtain a mixed system; and sequentially performing hot melt processing and hot press forming on the mixed system to obtain the chitosan-protein biomimetic composite material; and the hot melt processing is performed under a closed condition.The application utilizes the coordination action of the metal oxide and the tannic acid in combination with the electrostatic interaction of the chitosan-protein, maximizes the reaction between the components through the high temperature and high shear action of the hot melt processing process, thereby forming a functional metal-phenolic network, and enhancing the performance of the chitosan-protein biomimetic composite material, so that the chitosan-based composite material has excellent mechanical properties and ultraviolet resistance and antibacterial properties.

The utility model discloses a skylight structure of green building, including skylight, the frame is fixedly connected with the skylight outside, the rubber pad is contacted with the frame inside bottom edge department, through setting up the screw shaft, sliding plate, drive sprocket, chain, rack, gear, push board, fixed ring, spring and rubber pad, when installing the device, through directly putting the device in the installation hole reserved on the base layer, and then rotating the screw shaft and make the push board push the bottom of the base layer, further make the fixed ring cooperate the upward protruding part of the base layer and extrude the rubber pad of the ethylene -propylene -diene monomer rubber material, when the device completes installation, the good elasticity of cooperation rubber pad, the strong ultraviolet resistance, the strong ozone aging resistance, the wide temperature resistance and the good water resistance make the environmental applicability of the device after installation better, not only guarantee the construction quality, still promoted the reliability of the device.

The present application relates to the technical field of textile materials, and discloses a moisture-absorbing, antibacterial and anti-mite multifunctional composite fabric, which comprises a flexible base material layer composed of antibacterial flax, modal and chitin fibers; the surface of the flexible base material layer is provided with an interfacial adhesion layer containing a silane coupling agent and nano-silicon dioxide / zinc oxide / silver fillers; and the outermost layer is a polymer film functional layer containing functional materials same as or synergistic with the fillers of the interfacial adhesion layer; the three layers are synergized through cross-linking to realize moisture absorption, antibiosis, anti-mite and multiple expansion functions. The fabric of the present application has multiple functions such as antibiosis, anti-mite, moisture absorption, air permeability, electrical conductivity and ultraviolet resistance through scientific fiber matching and nano-filler synergism, and the antibacterial rate is still over 90% after 50 times of washing. The fabric is produced by using conventional equipment and a wet-wet synchronous curing process, the interlayer adhesion is firm, the grammage is flexible and adjustable, and the mass production cost is low. The fabric has soft hand feeling, and the functions can be further expanded through post-finishing, and is suitable for multiple fields such as medical treatment, outdoor activities and intelligent wearing, and has strong competitiveness.

The application discloses a preparation method of a flame-retardant waterproof ultraviolet-resistant finishing emulsion for textiles, which comprises the following steps: placing isophorone diisocyanate into a reactor, stirring, and adding polyethylene glycol, with the temperature controlled at 75 DEG C, and then reacting for 3 hours; adding dimethylol propionic acid, and then reacting for 2 hours; adding 1,4-butanediol, and then carrying out chain extension reaction for 2 hours; adding bis-hydroxyl siloxane, and then reacting for 1 hour; adding P-PDMS monomer and Si-P-BP monomer, and then adding water dropwisely under stirring at 70 DEG C, and then reacting for 4 hours; adding appropriate hydrochloric acid, slowly heating the system to 130 DEG C under reduced pressure, and then carrying out condensation reaction for 3 hours under reduced pressure; adding triethylamine, and then neutralizing for 30 minutes, so as to obtain a modified polyurethane prepolymer; adding water and a composite emulsifier into an emulsifier, stirring and dissolving, adding the modified polyurethane prepolymer and silica sol, and then carrying out strong mechanical stirring for 30 minutes by using a high-shear emulsifier. The emulsion is used for functional finishing and processing of textiles, so that the fabric has good functions of flame retardation, waterproofness and ultraviolet resistance.

The application relates to the field of outdoor fabrics, and particularly discloses a high-sunlight-resistant outdoor fabric and a preparation process thereof. The high-sunlight-resistant outdoor fabric comprises the following raw materials in mass percentage: BP-3 modified polyester particles 85-90%, an ultraviolet resistance agent 9-14% and an antioxidant 0.7-1%. The preparation method of the ultraviolet resistance agent comprises the following steps: (1) dispersing titanium dioxide in anhydrous ethanol, performing ultrasonic treatment, adding a silane coupling agent dropwise, adjusting the pH to 4-5, stirring and reacting at 50-55 DEG C for 1.5-2 h, and then washing and drying to obtain modified titanium dioxide; and (2) adding sodium carboxymethylcellulose into water, stirring and dissolving at 50-60 DEG C, adding the modified titanium dioxide, sorbitol and polyvinyl alcohol, performing ultrasonic treatment, and then drying to obtain the ultraviolet resistance agent. The application improves the high-sunlight-resistant performance of the outdoor fabric and maintains the softness of the fabric.

The application discloses a graphene functionalized reinforced modified polyester fiber and a preparation method thereof. The method comprises the following steps: 1) using dimethyl phthalate, ethylene glycol, a catalyst and a multi-component composite modifier as raw materials to polymerize functionalized modified polyester master batches; and 2) melting and spinning the functionalized modified polyester master batches to obtain graphene functionalized reinforced modified polyester fibers. The self-made multi-component composite modifier is used to prepare the functionalized modified polyester master batches, and then the polyester fibers are prepared, so that the product with excellent mechanical properties, flame-retardant properties, ultraviolet resistance and thermal-oxidative aging resistance can be obtained, the performance requirements of the polyester fibers in larger application scenarios can be better met, and the application prospect of the polyester fibers can be widened.

The utility model relates to sand control grid device technical field, and disclose a kind of desert control PVC grid device, including several first sand prevention net and second sand prevention net, the first sand prevention net and the second sand prevention net are all cross perpendicular arrangement, the utility model is provided with first sand prevention net and second sand prevention net, wherein first sand prevention net and second sand prevention net are made of high-quality PVC material, itself has very strong ultraviolet resistance, high and low temperature resistance, saline-alkali resistance, wind erosion resistance, first sand prevention net and second sand prevention net are vertically cross set and form sand prevention grid, the side of first sand prevention net and second sand prevention net is evenly provided with several spinning net grounding assembly, wherein the grounding plug pole in spinning net grounding assembly can be deeply inserted into desert, further improve the stability of the device, improve its wind resistance, compared with ordinary grass square and nylon net, longer service life is used, and stability is higher.

The application discloses a method for extracting biomass green pigment from silkworm sand and application of the biomass green pigment in fabric dyeing. The method comprises the following steps: taking silkworm sand as raw material, and adopting anhydrous extraction method combined with nano solid acid catalysis and low-temperature ultrasonic energy. In the extraction method, the concentration of the nano solid acid is 1-3 g / L, the solid-liquid ratio is 1:4-12, the ultrasonic power is 220-400 W, the ultrasonic temperature is 40-65 DEG C, and the ultrasonic time is 30-150 min. The obtained chlorophyll dye has good dyeing affinity to silk fabric, the dyeing pH value is 3-8, the dyeing temperature is 60-80 DEG C, the dyeing time is 40-60 min, and the dyed fabric has soft color, excellent color fastness and antibacterial and ultraviolet resistance. The method utilizes the synergistic catalysis of Lewis acid and Bronsted acid of the nano solid acid and the ultrasonic energy to promote the swelling and crushing of the biomass cell wall, the catalyst is easy to separate and recycle, and the low-temperature, high-efficiency and green extraction process is realized, which provides a feasible path for resource utilization of silkworm sand waste and development of natural functional dye.

The application relates to a spliced plastic water tank plate, which comprises a mounting frame, the inner side of the mounting frame is fixedly connected with a composite plate, the middle part of the composite plate is provided with a compression-resistant arch, an X-shaped cross hoop is arranged between the inner side of the mounting frame and an outer protective layer, the outer side of the mounting frame is fixedly connected with a rubber frame, a plurality of equidistantly-arranged fixing holes are arranged in the four edges penetrating through the mounting frame and the rubber frame, and bevels are arranged on the outer sides of the four peripheries of the mounting frame. The application has the effects of improving the pressure-bearing capacity and structural strength of the water tank, and can consider the weather resistance, ultraviolet resistance and food safety, is provided with a structure matched with glue injection, and improves the sealing performance of the water tank.

The application relates to the technical field of textile fabrics, and discloses a preparation method of light and thin sun-proof elastic fabric with cool feeling and bacteriostatic effect, which comprises the following steps: S1, 60S / 1 MC yarn and SORONA yarn are woven by adopting the weaving opening method in a 1-mode-to-1-mode mode; S2, the obtained gray cloth is sequentially subjected to shrinkage finishing, pre-setting finishing, scouring finishing, biological enzyme finishing and post-treatment finishing; and S3, the gray cloth after the post-treatment finishing is subjected to ultraviolet resistance finishing on a setting machine by adding 20-40 G / L ultraviolet resistance finishing agent YK-966, with the parameters of a liquid carrying rate of 85-100%, a setting temperature of 130-150 DEG C and a vehicle speed of 35-45 m / min, so that the light and thin sun-proof elastic fabric with cool feeling and bacteriostatic effect is obtained; the yarn length of the MC yarn and the SORONA yarn is 125-135 mm / 100G; the preparation method utilizes a specific knitting weaving process and a specific ultraviolet finishing agent YK-966, so that the fabric has better sun-proof effect; and the application also discloses the light and thin sun-proof elastic fabric with cool feeling and bacteriostatic effect prepared by the preparation method.