16results about How to "UV resistant" patented technology

The invention discloses an environmentally friendly high-elastic polyurethane modified acrylic runway surface adhesive and a preparation method thereof, which solves the problems of insufficient compatibility and mechanical strength of a plastic runway prepared by using organosilicon modified polyurethane in the existing process, and easy shedding or stratification when the organosilicon is compounded with the polyurethane. The runway surface adhesive is composed of the following raw materials: water-based polyurethane emulsion, modified acrylate, modifier, flame retardant, antioxidant, crosslinking agent, auxiliary foaming agent and white oil. The invention provides an environmentally friendly high-elastic polyurethane modified acrylic runway surface adhesive, which uses water-based polyurethane emulsion and modified acrylate as base materials, and the method of modifying the water-based polyurethane emulsion by modified acrylate is more environmentally friendly, while the modifier in the raw materials ensures that the runway surface adhesive has high elasticity and crosslinking density, and the modifier and the auxiliary foaming agent cooperate with each other to significantly improve the foaming effect of the plastic runway, and help to generate uniform and dense bubbles inside the runway surface adhesive material.

The present invention relates to the field of cosmetics, and in particular to a plant composition with anti-aging and protective effects and its application. The plant composition with anti-aging and protective effects comprises the following components in parts by weight: 5-13 parts of kudzu vine extract, 15-35 parts of Shennong chrysanthemum extract, 1-10 parts of scutellaria extract, 5-11 parts of sophora japonica extract, 5-13 parts of milk thistle extract, and 1-10 parts of sunflower extract. The present invention starts from multiple approaches such as resisting ultraviolet rays and protecting during sun exposure, and compounding six kinds of plant extracts to obtain a plant composition. The multi-component synergistic effect has the characteristics of being natural and safe, and also has the effects of protecting during sun exposure, soothing after sun exposure, resisting ultraviolet rays, and anti-aging, and can be used to prepare cosmetics.

This utility model relates to the field of composite cable technology, and more particularly to a multi-layered synergistic reinforced composite cable with a stranded inner core. The cable body includes a stranded inner core located at its center, an inner lining layer tightly fitted to the outside of the stranded inner core, and a composite layer surrounding the inner lining layer. The stranded inner core extends axially along the cable body. The composite layer includes an armor layer, a protective layer, a flame-retardant layer, and a wear-resistant layer arranged sequentially from the inside out. The armor layer, protective layer, flame-retardant layer, and wear-resistant layer are integrally formed by hot-melt bonding. This utility model achieves a significant improvement in comprehensive performance through the synergistic design of its multi-layered structure, possessing multiple advantages such as high strength, high flexibility, wear resistance, flame retardancy, and aging resistance. It is suitable for demanding applications such as marine engineering, lifting and transportation, and mining.

The application discloses a kind of preparation methods for high transparent polyethylene film additive, belong to polyethylene technical field, to solve the technical problems of high transparent polyethylene film in prior art, high production cost, aging resistance performance needs to be further provided, including nucleating agent grafting quaternary ammonium salt modified nanosilica and low-density polyethylene are mixed, initiator is added, by melt grafting reaction in twin-screw extruder, reaction is finished, extrusion, cooling, granulation, obtain intermediate I;Intermediate I, antioxidant 168, antioxidant 1076, zinc stearate, antistatic agent 1800 and mustard acid amide are mixed, to obtain high transparent polyethylene film additive;The high transparent polyethylene film additive prepared in the application is mixed with low-density polyethylene, and the processing performance is good, to obtain the high transparent polyethylene film with lower cost;This film not only has good transparency and tensile property, but also has good aging resistance.

The present invention relates to the technical field of laminated glass, specifically to a high-strength laminated glass based on an intermediate film and a preparation method thereof. Step 1: Add polytetrahydrofuran ether diol and a reactive anti-ultraviolet agent to N,N-dimethylformamide in sequence; add diisocyanate and an organic tin catalyst in sequence under a nitrogen atmosphere; heat to 80-85°C for reaction for 2-3 hours; vacuum degassing; add a starch dispersion containing starch nanoparticles, and stir for 20-30 minutes under ultraviolet light; add a chain extender and a reactive dye, and stir for 20-30 minutes; pour it into a mold, solidify it; stand at room temperature to obtain an intermediate film; Step 2: Soak the intermediate film in toluene for 6-10 hours, transfer it to methanol and soak it for 2-4 hours; dry it at room temperature for 3-5 days; obtain a modified intermediate film; Step 3: Place the modified intermediate film between two layers of glass, and hot press and compound it to obtain a high-strength laminated glass.

The present invention provides a polymer composite floating plate track bed vibration isolator capable of achieving multi-directional vibration isolation effect, comprising a connecting device, a pressure bearing device and a vibration isolation device, wherein the connecting device comprises a foundation sleeve, a ball stud, a hanging bolt and a bottom plate connecting bolt, wherein the foundation sleeve is pre-buried in the floating plate and connected to the ball stud by threaded cooperation, the end of the ball stud is hemispherical, the pressure bearing device comprises an upper cover plate, a pressure bearing plate and a bottom plate, wherein the pressure bearing plate and the bottom plate are connected to the vibration isolation device, a rubber coating is arranged inside the upper cover plate, the upper surface is connected to the floating plate, and power is transmitted to the pressure bearing plate through the ball stud, a spherical groove is provided in the middle of the pressure bearing plate, which cooperates with the spherical surface of the ball stud, the vibration isolation device comprises a retaining frame and an elastic matrix, the middle part of the retaining frame is opened, and the elastic matrix penetrates into the hole of the retaining frame. The present invention develops a polymer composite floating slab roadbed vibration isolator which can achieve multi-directional vibration isolation effect, which not only has obvious vibration isolation effect on the vertical load generated during train operation, but also has good vibration isolation effect on the lateral and longitudinal loads generated during train operation.

The invention discloses a polyurethane pressure-sensitive adhesive for a protective film and a preparation method of the polyurethane pressure-sensitive adhesive, and belongs to the technical field of pressure-sensitive adhesives. According to the invention, fluorinated acrylate is introduced into a polyol structure, so that not only is the viscosity of the polyurethane pressure-sensitive adhesive enhanced, but also excellent hydrophobicity and weather resistance are obtained. And the crosslinking density of the polyurethane pressure-sensitive adhesive is controlled through the combination and proportion of different crosslinking agents, so that the lasting viscosity of the pressure-sensitive adhesive is optimized.

The application discloses a kind of weather-resistant ultraviolet-resistant overhead insulated cable and preparation method thereof.Cable is sequentially arranged with rare earth aluminum alloy conductor with alumina ceramic membrane, conductor shielding layer, gradient functional composite insulation layer and biomimetic super-hydrophobic outer sheath from inside to outside, and passive surface acoustic wave sensing component is uniformly laid out.The insulation layer is three-layer co-extrusion molding: heat-conducting insulation inner layer filler is radially oriented, self-repairing enhanced middle layer contains dynamic covalent bond and photo-thermal microcapsule, and weather-resistant ultraviolet-resistant outer layer is compounded with core-shell ultraviolet shielding agent.The outer sheath is modified with fluorosilane, and the water contact angle is greater than or equal to 150°.The sensing component wirelessly monitors temperature, ultraviolet cumulative dose and deformation.The cable has a service life of more than thirty years, has natural light self-repairing and passive online monitoring functions, has strong environmental adaptability, and has low operation and maintenance cost.

The utility model relates to the technical field of protective equipment, and disclose a kind of professional protective equipment storage bag, including storage bag main body, still include: interlayer, fixedly connected in the one side of storage bag main body, the bottom of interlayer inner chamber is fixedly connected with two groups of elastic limiting band for limiting article, the side of interlayer is provided with connecting cover;Several partition plates are set in the inner chamber of storage bag main body, and the inner wall of storage bag main body is fixedly connected with sub magic paste;The utility model's storage bag main body, interlayer and connecting cover inside all have storage space, can be classified and stored to different equipment, storage bag main body can store larger volume article, interlayer and connecting cover can store small volume article, and adjustable partition plate in storage bag main body can be adjusted according to the size of article, the partition of storage bag main body interior is adjusted, more extensive application range, and using nanometer antibacterial coating can promote protection level, realize long-acting antibacterial effect.

The utility model discloses a flexible low-voltage flame-retardant cable, which comprises a plurality of wire cores and a sheath used for wrapping the wire cores, and the structure of each wire core is sequentially provided with a conductor, a bulletproof wire and an insulating layer from inside to outside; fillers are arranged in gaps among the wire cores, the sheath is sequentially provided with a flame-retardant tape, an oxygen barrier layer, an armor layer, a water-blocking tape and an outer protective layer from inside to outside, and the conductors are sixth soft copper wires. The cable is reasonable in structural design, and has the following beneficial effects that the sixth soft copper wires are adopted, and a plurality of strands of fine copper wires are stranded in the same direction, so that the flexibility of the cable is greatly improved, the cable has better flexibility and bending resistance, the phenomenon of core breakage does not occur even if the cable is frequently bent for a long time, and the service life of the cable is prolonged. Meanwhile, the outer surfaces of the conductors in the wire cores are provided with the bulletproof wires which are twisted together, so that the toughness of the cable is further enhanced, and the tensile failure resistance is remarkably improved; and the water-blocking tape is arranged to prevent water and moisture from spreading longitudinally, so that a water-blocking effect is achieved.

The invention relates to the technical field of coatings, in particular to water-based two-component low-temperature stoving varnish for a photovoltaic frame and a preparation method of the water-based two-component low-temperature stoving varnish. The water-based two-component low-temperature stoving varnish for the photovoltaic frame comprises a component A and a component B, comprising the following raw materials in parts by weight: 50-60 parts of resin, 10-25 parts of functional filler, 4-10 parts of a solvent, 0.2-0.5 part of a defoaming agent, 0.1-0.3 part of a wetting agent, 0.5-1.5 parts of a dispersing agent, 0.2-0.5 part of a thickening agent and 10-15 parts of water, and the component B is isocyanate. The low-temperature baking varnish prepared by the invention has good adhesive force and excellent corrosion resistance, aging resistance and wear resistance.

The invention relates to the field of waterproof coating storage tanks, and discloses a basalt fiber modified cement-based permeable crystallization type waterproof coating storage tank and a method, the basalt fiber modified cement-based permeable crystallization type waterproof coating storage tank comprises the following raw materials by mass: 40-50 parts of cement, 5-10 parts of basalt fiber, 30-40 parts of sand, 20-25 parts of water, 5-10 parts of a permeable crystallization type additive, 10-15 parts of a polymer emulsion, 1-2 parts of a mildew inhibitor, 1-3 parts of a thickener, 1-3 parts of a rheology modifier, and 5-10 parts of a filler, the length of the basalt fiber is 6 to 12mm, and the diameter of the basalt fiber is 9 to 13 microns. The cement-based material is modified by using the basalt fiber, and the basalt fiber has the characteristics of excellent mechanical property and high temperature resistance, so that the crack resistance of the coating can be effectively enhanced, cracks caused by temperature change and external stress are reduced, the service life of the storage tank is prolonged, and the tensile strength and toughness of the coating are remarkably improved.

The invention provides an integrated forming process of an extra-high-voltage alternating-current and direct-current insulating soft sling, belongs to the technical field of high-voltage insulating slings, and solves the technical problems that an existing insulating soft sling is low in preparation efficiency, poor in performance and the like. The integrated forming process of the insulating soft suspender comprises the following steps: weaving a textile fabric layer belt; performing vacuum infiltration; laminating and vulcanizing; performing fiber pretreatment and surface modification; preparing impregnating resin liquid; impregnating the inner and outer coating layers; dipping the modified fiber; integrally forming; heating and curing; carrying out continuous traction and fixed-length cutting; and light-weight end heads are integrally connected. Through multi-layer composite structure innovation and precise material matching, breakthrough improvement of product performance is achieved, the product has the comprehensive protection characteristics of super-hydrophobicity, ultraviolet resistance and the like, and the harsh requirements under the extra-high voltage environment are met; and the production line adopts highly integrated and automatic design, so that the continuity, accuracy and flexibility of production are ensured.

The invention provides a biomass composite reinforced PBAT multifunctional fully biodegradable plastic and a preparation method thereof, and relates to the technical field of materials. The method comprises the following steps: dispersing industrial alkali lignin in an ethyl acetate solvent to obtain an industrial alkali lignin solution; carrying out suction filtration on the industrial alkali lignin solution, and concentrating and drying the obtained filtrate to obtain lignin; then mixing the PBAT resin, lignin and a compatibilizer, and carrying out hot press molding after mixing is finished, so as to obtain the biomass composite reinforced PBAT multifunctional fully biodegradable plastic.

This invention discloses a nano-deposited, heavy-duty anti-corrosion graphene composite nano-coating, which is composed of the following components by weight: 66-82 parts of a polyimide-toughened polyphthalonitrile resin composition solution; 1-2 parts of nano-calcium silicate; 1-2 parts of nano-silicon nitride; 1-2 parts of graphene; 3-5 parts of 1,3,5-tris(trimethoxysilylpropyl)isocyanurate; 2-3 parts of lead powder; 1-2 parts of chromium carbide powder; 1-2 parts of tungsten powder; 1-2 parts of cobalt powder; 1-2 parts of silicon carbide; 1-2 parts of tungsten carbide powder; 1-2 parts of nickel powder; 1-2 parts of boron powder; 1-2 parts of rhenium powder; 1-2 parts of zirconium carbide powder; and 1-2 parts of zirconium oxide powder. After baking, cross-linking, and curing, the coating forms a powder coating with properties such as high temperature resistance, resistance to rapid heating and cooling, fire resistance and scorching prevention, heat insulation and heat dissipation, resistance to damp heat, salt spray resistance, impact resistance, and low friction.

The application discloses an intelligent platform type multifunctional drug dispersant, a preparation method and application. The intelligent platform type multifunctional drug dispersant comprises an adhesive dispersant aqueous solution and a solid drug. The adhesive dispersant solute in the adhesive dispersant aqueous solution is a core-shell structure composite material. The core body is biodegradable nanoparticles, and the shell body is a nanometer film formed by polymerization of amyloid aggregates. The intelligent platform type multifunctional drug dispersant has the following excellent performances: green raw materials and biodegradability, intelligent controlled release performance, excellent hydrophobic particle dispersion capacity, ultraviolet resistance and acid rain erosion resistance, super spreading and synergistic effect, and has a wide application field and other characteristics. The preparation method uses natural proteins and biomass nanomaterials as main construction units, and uses water as a solvent in the whole preparation process, and does not involve toxic organic solvents, so that the environmental protection performance is good, and the preparation method lays a foundation for large-scale production of the intelligent platform type multifunctional drug dispersant.