170 results about "UV resistance" patented technology

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

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

The invention belongs to the technical field of coating materials, and particularly relates to an ablation-resistant anti-aging coating on the surface of an aircraft and a preparation method of the ablation-resistant anti-aging coating. A silane coupling agent containing an epoxy group and vinyl and boric acid are used as raw materials, an organic silicon-boron hybrid oligomer with a Si-O-Si and Si-O-B bond stereo structure is obtained by adjusting the ratio of the silane coupling agent to the boric acid and serves as a bridge, and phenolic resin, hydrogen-containing silane and vinyl silicone rubber are combined together to form the ablation-resistant anti-aging coating. Wherein an epoxy group and a phenolic hydroxyl group are subjected to a condensation reaction, vinyl and a platinum catalyst form a compact cross-linked structure through hydrogen-containing silane, and the obtained coating has a lower ablation rate, better anti-UV weather resistance and higher flexibility, is suitable for long-time protection of the surface of an aircraft, and has a better ablation protection effect under shear airflow impact.

This invention relates to a pavement structure and its installation method. The pavement structure includes a main body, which comprises a base layer, a concrete layer, and a first bonding layer. The first bonding layer is disposed between the base layer and the concrete layer to bond the base layer and the concrete layer. A storage tank is fixedly disposed on the side of the main body. The storage tank is used to store an aqueous solution of light stabilizer, and the top of the storage tank is provided with a feeding port, in which a plug is detachably installed. The main body also includes a hydrophilic polymer fiber mesh, which is laid on the concrete layer and extends into the storage tank from the side. The polymer fiber mesh can adsorb and disperse the aqueous solution of light stabilizer on it. The surface tension of the fibers promotes the flow of liquid, and the aqueous solution of light stabilizer in the storage tank is uniformly absorbed and dispersed throughout the pavement structure, extending the UV resistance of the pavement structure and ensuring the full service life performance of the concrete.

The application discloses waterproof ultraviolet-resistant nylon fabric and a processing technology thereof and relates to the technical field of nylon fabric. The application comprises a nylon inner core formed by nylon fiber weaving; a waterproof layer sewn on both sides of the nylon inner core, wherein the waterproof layer is composed of PVC coated fabric; and an ultraviolet-resistant layer coated on the surface of the waterproof layer, wherein the ultraviolet-resistant layer is dark paint. The waterproof layer made of PVC coated fabric is sewn on the outer side of the nylon inner core. In use, the waterproof effect of the nylon inner core itself is improved, and the outer side of the waterproof layer is coated with dark paint. When the fabric is the same, the deeper the color, the better the protection effect against ultraviolet rays. Without additional increase in the weight of the fabric, the ultraviolet-resistant performance of the nylon fabric after forming is improved, the practicality of the fabric after being made into a coat is improved, the nylon fabric has the properties of waterproofness and ultraviolet resistance under the action of the paint, the quality of the nylon fabric is improved, and the service life is prolonged.

This invention relates to a polyurethane-modified silicone protective material for the outer wall of wind turbine towers, and discloses a method for preparing the same material. The material is prepared by mixing acrylate-hedged phenol-modified trimethyl silicone oil, isocyanate-modified polyether polyol polyurethane, ultrafine silica, nano-alumina, short-fiber glass, triethylamine, benzoyl peroxide, dioctyl phthalate (DOP), phthalocyanine UV absorbers, dibutyltin diethylene (DDBT), and imidazole antifungal agents in a specific weight ratio. This material exhibits excellent weather resistance, mechanical strength, heat resistance, UV resistance, and antifungal properties, making it particularly suitable for the protection of wind turbine towers. The preparation method ensures the stability and consistency of the material's performance by precisely controlling the proportions of each component and the curing conditions. This material effectively improves the UV resistance, corrosion resistance, weather resistance, and overall durability of wind turbine towers, extending their service life and reducing maintenance costs. This invention provides a high-performance protective material for the outer wall of wind turbine towers, which has significant engineering application value. Especially in environments with long-term high humidity, low temperature, and strong ultraviolet radiation, it can significantly improve the stability and service life of the tower. This polyurethane-modified silicone protective material exhibits excellent protective performance in demanding application environments such as wind turbine towers, and has broad market application prospects.

The utility model discloses a copper-clad aluminum conductor photovoltaic wire, which relates to the field of photovoltaic technology and comprises an aluminum conductor, a copper conductor is fixedly sleeved on the outer cylindrical surface of the aluminum conductor, a tin shell is fixedly sleeved on the outer cylindrical surface of the copper conductor, and a waterproof layer is arranged on the outer surface of the tin shell. The waterproof layer is used for improving the waterproof performance of the photovoltaic wire, the outer surface of the waterproof layer is provided with the anti-impact layer, the anti-impact layer is used for improving the strength of the photovoltaic wire, the outer surface of the anti-impact layer is provided with the protective layer, and the protective layer is used for improving the corrosion resistance and ultraviolet resistance of the photovoltaic wire. According to the utility model, the surface of the wire can be effectively protected from being damaged by external environments such as chemical corrosion and mechanical damage through the protection layer, the service life of the wire is prolonged, and the damage of the wire caused by mechanical stress in the transportation, installation and use processes can be reduced through the impact-resistant layer.

This invention provides a modified lignin and its preparation method, a rubber composite material and its preparation method, and its applications, relating to the field of rubber materials technology. This invention employs sulfur and oil to synergistically surface-functionalize lignin, significantly enhancing its interfacial compatibility with the rubber matrix. Furthermore, the modified lignin, rich in long carbon chains, can form physical entanglements with rubber, and is also rich in polysulfide bonds, enabling chemical cross-linking with rubber at high temperatures to form a stable three-dimensional network structure, effectively improving the mechanical properties of the rubber material. The modified lignin prepared by this invention can replace 10-50% of carbon black and 10-50% of rubber without reducing rubber performance; it also imparts additional functions such as UV resistance and anti-aging properties to rubber materials. The multi-purpose nature of this modified lignin makes it widely applicable in the field of rubber material preparation.

This invention discloses an impact-resistant photovoltaic encapsulating film, its preparation method, and a photovoltaic module. The photovoltaic encapsulating film comprises multiple layers of unidirectional prepreg tape laminated together. The unidirectional prepreg tape is obtained by melt impregnation of thermoplastic resin and continuous fibers surface-treated with a coupling agent. The thermoplastic resin includes polyolefin elastomer (POE) and POE grafts. During the melt impregnation process, the continuous fibers surface-treated with the coupling agent and the POE grafts undergo a chemical reaction to achieve compatibility. This invention employs a pre-melt impregnation followed by crosslinking technique. The uncrosslinked POE resin has good fluidity and can be fully melt-impregnated with the continuous fibers. Electron beam irradiation post-treatment technology allows the impregnated base film to undergo a crosslinking reaction, resulting in a fiber-reinforced impact-resistant photovoltaic encapsulating film. The film prepared by this invention meets industry technical standards for UV resistance, aging resistance, and impact resistance, while also being low-cost and simple to manufacture, making it widely applicable in the field of lightweight flexible photovoltaic modules.

The utility model provides a kind of portable circular garage lamp external emergency power supply box, belong to lighting industry field, including mounting plate and lamp body, the lamp body is fixedly installed at the bottom of mounting plate, the outside of lamp body is equipped with emergency assembly.The utility model can be used as the external emergency power supply device of various lamps and lanterns separately, also realizes flexible assembly and convenient application by unique interface connection design.Emergency power supply box and lamp body are completely separated design, effectively avoid the adverse effect caused by the heat generated by lamp body to power supply box, to significantly improve the life and working reliability of emergency power supply, provide strong guarantee for the continuous lighting of lamps and lanterns in power failure, meet the demand of complex and changeable use environment.At the same time, its anticorrosion and UV resistance characteristics and reach IP65 protection level, effectively resist corrosion and ultraviolet invasion, further prolong the service life, reduce maintenance cost.

The application discloses a dyeing boosting agent and a low-temperature salt-free dyeing method for bio-based PLA / regenerated cellulose fiber blended fabric, and relates to the technical field of textile dyeing. A synergistic cross-linking modification system is constructed by using a bio-based small-molecule phenol with double functional groups and a high-density amino polymer. The fabric is pretreated and immersed for modification, a stable ion cross-linking adhesion layer is formed on the surface of the fiber, and then low-temperature dyeing of the electrolyte-free reactive dye is carried out. The process adopts a one-bath one-step method, does not need high temperature, high salt and reduction cleaning procedures, is simple in process, low in carbon and environmentally friendly, can realize synchronous dyeing and uniform color of PLA and regenerated cellulose fiber, effectively improves the fabric dyeing rate and color fastness, and significantly improves the ultraviolet resistance of the product. The application solves the problems of poor uniformity, low color fastness and large pollution existing in the traditional dyeing process, and is suitable for green and efficient production of bio-based blended fabric.

The application discloses a preparation method of a super-wear-resistant anti-fingerprint and UV-resistant coating and application thereof, and relates to the technical field of glass coating, in particular to the preparation method of the super-wear-resistant anti-fingerprint and UV-resistant coating.The preparation method comprises the following steps: S1, mixing AF coating and fluorine-modified UV-resistant coating to obtain a mixed solution; S2, preheating the cleaned and dried glass, and then performing plasma bombardment to make the water drop contact angle of the glass surface be less than or equal to 10 degrees; spraying the mixed solution onto the glass surface, and baking to obtain the super-wear-resistant anti-fingerprint and UV-resistant coating.In the technical scheme, the fluorine-modified UV-resistant coating and the AF coating are fully miscible, a dense crosslinked network can be formed on the glass after spraying, water and oil can be effectively prevented, the coating has the effects of UV resistance, anti-fingerprint, high wear resistance, and high light transmittance, the super-wear-resistant anti-fingerprint and UV-resistant coating prepared by the preparation method has more sustainable and excellent performance on the glass surface compared with similar products, the production and use efficiency is improved, and the coating is environment-friendly.

This invention belongs to the field of waterborne coatings and discloses a filler-modified organosilicon waterborne polyurethane, its wear-resistant superhydrophobic coating, and its preparation method. The wear-resistant superhydrophobic coating is made by stirring waterborne polyurethane emulsion as the main raw material, adding hydrophobic modified organosilicon, nanofiller modifiers, and additives. This coating not only has excellent adhesion and wear resistance but also superhydrophobic properties. Specifically, the introduction of hydrophobic modified organosilicon improves the coating's adhesion strength to the substrate and its wear resistance; the introduced low surface energy -Si-O-Si segments improve the coating's hydrophobicity, giving it superhydrophobic properties; and different fillers impart good UV resistance and wear resistance to the coating.

The invention relates to the technical field of child skin care products, in particular to a child skin soothing and repairing cream containing egg yolk oil extract and a preparation method of the child skin soothing and repairing cream. The prepared children skin soothing and repairing cream is long in acting time and high in repairing efficiency; wherein the egg yolk oil hydrogel beads are easy to break at the damaged skin, and the egg yolk oil emulsion is released, so that the action time can be prolonged, the egg yolk oil emulsion is released at the damaged skin in a targeted manner, and the utilization rate and the repair efficiency are effectively improved; the silk fibroin microspheres reduce active oxygen and have good ultraviolet resistance; through the synergistic effect of the components in the plant extract, various problems of fragile skin barrier, dryness, water shortage, redness, inflammation and the like of children can be effectively solved; the auxiliary materials can promote mutual fusion of the components while playing a role in moistening and moisturizing, and compared with the prior art, the composition has a wide application prospect.

A thermoplastic molding composition P comprising: AB: at least one graft copolymer composition AB, consisting of at least one thermoplastic copolymer A and at least one graft copolymer B; C: at least one UV absorber as component C; and D: optionally at least one further additive as component D, wherein the UV absorber component C comprises at least one organic or inorganic component having an UV absorption at least in a wavelength range ≤380 nm; and wherein the UV absorber component C is at least partially selected from at least one black pigment, at least one white pigment and / or at least one dye having an UV absorption at least in a wavelength range ≤380 nm.

The utility model relates to the field of car cover, especially a high heat insulation ultraviolet resistant car cover. The utility model wants to solve the technical problem to provide a kind of high heat insulation ultraviolet resistant car cover that can synergic barrier ultraviolet and infrared, with high heat insulation and ultraviolet resistant performance, improve the service life. A kind of high heat insulation ultraviolet resistant car cover, including the substrate layer, function layer and protective layer that are sequentially laminated settings;The function layer is alternatively stacked by multiple heat insulation layers and multiple ultraviolet resistant layers;The heat insulation layer is metal sputtering layer or metal oxide nanoparticle layer, for reflecting or absorbing infrared rays;The ultraviolet resistant layer is ultraviolet absorber coating, for absorbing ultraviolet rays. The utility model reaches the effect that synergic barrier ultraviolet and infrared, with high heat insulation and ultraviolet resistant performance, improve the service life.

The invention discloses phosphorus-based acid source catalyzed high-flame-retardant ultraviolet-resistant aerogel powder and a preparation method of the phosphorus-based acid source catalyzed high-flame-retardant ultraviolet-resistant aerogel powder. The preparation method comprises the following steps: S1, adding TiO2 powder into ethanol; adding nitric acid to adjust the pH value; amino alkyl triethoxy silane is added, and stirring is carried out; after heating reaction, washing and vacuum drying are performed to obtain modified TiO2; s2, tetraethyl orthosilicate, absolute ethyl alcohol and deionized water are mixed, a phosphorus acid source is dropwise added while stirring is conducted, and water bath hydrolysis is conducted after dropwise adding is completed; s3, adding modified TiO2 into the solution obtained in S2, stirring, and dropwise adding ammonia water to induce the system to generate gelation reaction; s4, adding absolute ethyl alcohol and normal hexane after gelling, and carrying out solvent exchange; s5, adding a mixed solution of a hydrophobic modifier and n-hexane for surface modification to obtain a wet gel composite material; s6, drying to obtain the flame-retardant hydrophobic silicon dioxide / modified TiO2 aerogel composite material. The fireproof and anti-ultraviolet performance of the HSA composite material disclosed by the invention is remarkably improved.

The invention discloses ultraviolet-resistant elastic stretchable EVA (Ethylene Vinyl Acetate) resin and application thereof, and explores application of the ultraviolet-resistant elastic stretchable EVA resin in a stretchable OLED (Organic Light Emitting Diode) device. The resin is prepared by grafting a polystyrene side chain containing an innovative ultraviolet absorption unit to a main chain of an ethylene-vinyl acetate copolymer; according to the present invention, the modification of the ultraviolet absorbent micromolecule into the styrene side chain group and grafting is the advanced strategy for improving the application performance without sacrificing the core function, and the anti-ultraviolet performance cannot be reduced, but can be well and durably performed due to the stability and the uniformity of the anti-ultraviolet absorbent in the polymer system, such that the anti-ultraviolet performance of the anti-ultraviolet absorbent can be significantly improved, and the anti-ultraviolet performance of the anti-ultraviolet absorbent can be significantly improved. The EVA-UV-PS graft copolymer has the advantages of excellent elasticity, ultraviolet aging resistance and good light transmission. The resin can be used as a packaging layer, a substrate or a stress buffer layer to be applied to a stretchable OLED, an OLED light-emitting layer is effectively prevented from being damaged by ultraviolet radiation through the intrinsic ultraviolet shielding capability of the resin, and meanwhile, the high elasticity of the resin ensures the mechanical reliability of a device under repeated deformation. The synthesis route is simple, a noble metal catalyst is not needed, the working life of the stretchable OLED in a complex illumination environment is remarkably prolonged, and the method has a wide prospect in the fields of wearable electronics and the like.

According to the construction process, a hopper feeding device, a transmission system, a heating extrusion device, a cooling shaping device, a cutting device, a thread rolling device, a traction device, a grinding device and a sterilization device are arranged. The acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good non-toxic biodegradability, the acupuncture needle prepared from the poly (lactic-co-glycolic acid) material has good in-vivo biocompatibility, degradation products of lactic acid and glycolic acid can participate in metabolism of a human body, and finally carbon dioxide and water are formed and discharged out of the body. Meanwhile, the material is degraded by organisms and microorganisms in the natural world in the natural environment; by adding the traditional Chinese medicine pigment and adding a small amount of surfactant (phenol polyethylene glycol solvent or zinc naphthenate), the finished acupuncture needle has excellent weather resistance, light resistance, chemical corrosion resistance and ultraviolet resistance.

The utility model discloses a cable for a photovoltaic system, and relates to the technical field of photovoltaic systems. The cable comprises a cable main body, the cable main body comprises a wire core, the outer surface of the wire core is sleeved with a protective sleeve, and a filling layer is filled between the wire core and the protective sleeve; the protection sleeve comprises an insulation isolation layer. According to the utility model, the protective sleeve is arranged outside the wire core, and the filling layer is filled between the wire core and the protective sleeve, so that the wire core can be well protected, the filling layer enables the structure of the cable to be more compact, and the protective sleeve comprises the insulation isolation layer, so that the insulation performance can be further enhanced, the current leakage of the wire core is prevented, and the safe operation of the cable is ensured; the wrapping tape layer can fix the internal structure, the integrity of the cable is enhanced, the stability of the cable is improved, the outer sheath has weather resistance, corrosion resistance, wear resistance and ultraviolet resistance, and the internal structure of the cable can be comprehensively protected from adverse effects of the external environment.

The application relates to the technical field of ABS packaging bottles, and more specifically to an ultraviolet-resistant ABS material, a preparation method thereof and a packaging bottle. An ultraviolet-resistant ABS material comprises the following raw materials in parts by weight: 50-80 parts of styrene, 14-26 parts of acrylonitrile, 12-18 parts of a benzotriazole ultraviolet-resistant absorber, 8-14 parts of butadiene, 0.1-0.9 parts of benzoyl peroxide, 0.1-0.5 parts of tertiary dodecyl mercaptan and 40-60 parts of toluene; the benzotriazole ultraviolet-resistant absorber comprises the following raw materials in mole: 1-3 parts of hydroxyethyl methacrylate, 2-4 parts of toluene-3,5-diisocyanate and 1-3 parts of a polyhydroxy-containing ultraviolet-resistant absorber. The ultraviolet-resistant ABS material has excellent ultraviolet-resistant performance and migration resistance.

This invention discloses a biomimetic wear-resistant and anti-aging protective coating for cactus skin, belonging to the field of material surface protection technology. This coating features a dual-layer composite protective structure mimicking the waxy and cuticle layers of cactus skin. It consists of a bottom adhesion-enhancing layer and a top biomimetic wear-resistant and weather-resistant layer. The bottom layer uses modified epoxy resin to improve substrate adhesion, while the top layer replicates the hydrophobic, wear-resistant, and UV-resistant properties of cactus skin wax, with the addition of nano-titanium dioxide and wear-resistant ceramic particles. This achieves multiple properties of the coating, including wear resistance, UV resistance, aging resistance, and hydrophobic self-cleaning properties. It is suitable for surface protection of outdoor metal, plastic, and concrete substrates, solving the problems of easy wear, aging, and short service life of outdoor coatings.

The invention relates to impact resistant acrylic copolymers and terpolymers incorporating high Tg, hydrophobic (meth)acrylates and derivatives that have high thermal stability and excellent impact resistance. These copolymers have a Tg of 114-130° C., along with high molecular weight and high impact resistance. The copolymer is found to exhibit high heat resistance, high light transmission, low haze, low moisture uptake, excellent environmental stability, excellent high temperature thermal stability, and excellent mechanical properties, along with excellent UV resistance. The copolymer, or terpolymer may be used in many applications, including, but not limited to automotive parts, lighting pipes, thin wall parts, optical lenses, extruded optical films, (co-)extruded sheets / profiles, thermo-formable sheets, injection molded parts, and composites.

This utility model discloses a water conservancy pipeline for water conservancy projects, relating to the field of water conservancy engineering technology. It includes a pipeline body, a front connecting end, and a rear connecting end. The outer surface of the pipeline body is provided with an anti-corrosion layer. The anti-corrosion layer includes a primer layer, an intermediate paint layer, and a topcoat layer. The primer layer is located on the outermost side of the pipeline body, the intermediate paint layer is located outside the primer layer, and the topcoat layer is located outside the intermediate paint layer. The anti-corrosion layer on the outer surface of the pipeline body consists of a primer layer, an intermediate paint layer, and a topcoat layer. The primer layer adheres directly to the outermost side of the pipeline body, enhancing adhesion to the pipeline surface and preventing direct corrosion from external substances. The intermediate paint layer increases the thickness and wear resistance of the anti-corrosion layer, further blocking the penetration of corrosive media. The topcoat layer has good weather resistance and UV resistance, protecting the entire anti-corrosion layer from damage by the external environment.

The present invention relates to the fields of chemistry, nanotechnology and materials engineering, and discloses a polymer composite comprising at least one polymer matrix and at least one filler consisting of metal particles. The invention also discloses a method for modulating the properties of a polymer matrix comprising incorporating a filler consisting of metal particles into the polymer matrix. One of the advantages offered by the invention is that of extending the service life of polymers or restoring the properties of a recycled polymer to a state comparable to that of virgin polymer; furthermore, it improves the material's efficiency and cost-effectiveness, resulting in gains in hydrophobicity, weather and UV resistance, and mechanical, thermal and physicochemical properties, thereby expanding its applicability and added value. The invention also describes use of the aforementioned polymer composite and the use of metal particles to restore the properties of a recycled polymer matrix to the virgin state thereof.

The invention provides a solar cell based on a Cu-doped lead-copper alloy perovskite light absorption layer and a preparation method of the solar cell, and the light absorption layer of the solar cell is a Cu-doped lead-copper alloy perovskite thin film Cs0. 05MA 0. 10FA 0. 85Pb1-xCuxI3, the preparation method of the lead-copper alloy perovskite thin film comprises the following steps: adding formamidine hydriodate, methylamine hydriodate, cesium iodide, lead iodide and cuprous iodide powder into a solvent, and uniformly stirring and mixing to prepare a perovskite precursor solution; the PbI2 powder and the CuI powder are uniformly mixed, the uniformly mixed precursor solution is spin-coated, annealing is carried out on a heating stage, the thin film is obtained, the ratio of the PbI2 powder to the CuI powder is 1-x: x, and x is equal to 0-10%. The copper-doped lead-copper alloy perovskite with the three-dimensional octahedral structure synthesized by the method has structural and thermodynamic stability and is high in fluorescence performance and light absorption performance, and the crystallization quality of a thin film is remarkably improved; when the perovskite thin film is used as a light absorption layer of the cell, a perovskite solar cell with high photoelectric conversion efficiency can be prepared, and the perovskite solar cell has excellent ultraviolet resistance and high temperature resistance stability.

The application relates to a PCR thermoplastic elastomer material, relates to the technical field of composite materials, and comprises the following components in mass fractions: SEBS 70-80 parts, white oil 60-70 parts, PCR raw material 150-180 parts, surface-treated glass fiber 60-80 parts, UV resistance agent 8-10 parts, antioxidant 8-10 parts, light stabilizer 3-5 parts and heat stabilizer 3-5 parts. The PCR thermoplastic elastomer material is stable in performance, comparable to virgin plastics, strong in processability, suitable for various processing methods such as injection molding and extrusion, can reduce product manufacturing cost, reduce dependence on fossil fuels, and promotes waste plastic recycling.

This invention relates to the field of high-performance fiber materials technology, and discloses a long-lasting, UV-resistant, and highly stable Kevlar fiber. Using para-aramid as a matrix, it incorporates in-situ copolymerized grafted bis(aminotriazine)-benzimidazole UV-stabilizing units, and its surface is covalently bonded with a CeO2-TiO2 composite nanolayer via a silane coupling agent. This results in excellent UV resistance and structural stability, with a UPF value of 50-100+, and a strength retention rate of ≥90% after 500 hours of xenon lamp aging. It also retains ultra-high strength, high modulus, and high-temperature resistance. The preparation method includes synthesizing the bis(aminotriazine)-benzimidazole comonomer, low-temperature polycondensation of this comonomer with p-phenylenediamine and terephthaloyl chloride to obtain a copolymer spinning solution, followed by dry-wet spinning, alkaline etching, composite sol-coating, and high-temperature curing to obtain the target fiber. This invention employs dual modification through internal copolymerization and surface coating, resulting in a simple process suitable for industrial production. The obtained fiber can be used in aerospace, defense, and outdoor protection applications requiring long-term UV exposure.

The present application relates to the production process and product of photoelectric display film, the process comprises the following steps: cutting: cutting protective film and adhesive film according to the preset size; Lamination: the first outer layer protective film, the first PVB or EVA adhesive film, the light emitting layer, the heat insulation adhesive film, the second PVB or EVA adhesive film and the second outer layer protective film are sequentially laid from bottom to top to constitute the laminated film; Hot melt laminating: the laid laminated film is placed in a vacuum negative pressure environment, heating, pressure is applied and pressure is maintained, the first PVB or EVA adhesive film, the heat insulation adhesive film and the second PVB or EVA adhesive film are melted, the layers of the laminated film are bonded together and the air between the layers of the film is completely discharged; UV resistance, yellowing resistance, heat insulation and transparency technology are combined, the finished product reaches the quality requirements of outdoor waterproof, heat insulation and flexible transparent display through the hot melting and pressing production process steps, an outdoor transparent display flexible transparent heat insulation display film is provided, and this gap in the industry is filled.

This invention provides a method for preparing a modified graphene / polyurethane anti-erosion composite coating, comprising the following steps: dry ball milling of graphene raw materials to obtain graphene powder; wet ball milling of the graphene powder with polyether polyol to obtain a modified graphene dispersion; adding the modified graphene dispersion to the polyether polyol and stirring evenly; further adding glycerol and a silane coupling agent and stirring evenly; then adding isophorone diisocyanate, a polyurethane defoamer, and dibutyltin dilaurate, stirring, and allowing to stand to obtain the modified graphene / polyurethane anti-erosion composite coating. This invention uses the polyether polyol in the base material for wet ball milling of graphene, improving the interfacial properties of graphene and enhancing its dispersion performance in the polyurethane coating matrix; it can balance the coating's water resistance, UV resistance, salt spray resistance, erosion resistance, and electrochemical properties, improving the coating's anti-erosion protection effect in hydraulic steel components.