142results about How to "Good UV aging resistance" patented technology

The invention discloses an external rubber sleeve material of a cable used for wind power generation, comprising the following components by weight parts: 100.00 parts of chlorosulfonated polyethylene rubber, 15.00-20.00 parts of vulcanizing agent epoxy resin, 5.00-10.00 parts of magnesium oxide acid acceptor, 1.00-1.50 parts of vulcanization aid, 0.20-1.50 parts of vulcanization accelerator, 10.00-15.00 parts of fire-retardant plasticizer, 5.00-10.00 parts of cold resistant plasticizer, 30.00-40.00 parts of reinforcing agent, 40.00-50.00 parts of filling agent, 0.50-2.00 parts of anti-ageing agent, 0.50-2.00 parts of process operation agent, and 10.00-15.00 parts of flame retardant. The external rubber sleeve material of the cable used for wind power generation has the greatest advantages of extremely high physical and mechanical performance, excellent oil resistance and climate resistance, extremely softness and flame retarding, and the like.

The present invention relates to one kind of transparent composite epoxy material and its preparation process and use. The transparent composite epoxy material has nanometer composite inorganic stuffing comprising nanometer silica particle serving as core, titania serving as shell coating the silica particle core and outer silica layer coating the titania shell. The transparent composite epoxy material possesses high transparency, excellent ultraviolet ray shielding effect, high ultraviolet ray tolerance, low heat expansion coefficient, high heat conductivity and other advantages, and is suitable for use in pacing LED and other light emitting semiconductor devices.

The invention discloses a butyl hot melt adhesive and a preparation method thereof. The preparation method comprises the following steps that in a high temperature kneader, the temperature is set at 130 DEG C-150 DEG C, 180-600 parts by weight of polyisobutene, 100 parts by weight of butyl rubber and 30-120 parts by weight of tackifying resin are firstly added into the kneader, the temperature is increased to 110 DEG C-130 DEG C, and stirring is performed until the materials are uniform; 450-1000 parts by weight of packing, 0-7 parts by weight of an anti-aging agent and 1-25 parts by weight of a softening agent are sequentially added, vacuumizing and stirring are performed for 0.5-2.5 hours, 20-100 parts by weight of the retained polyisobutene is added, vacuumizing and continuous stirring are performed for 0.5-2 hours, and the butyl hot melt adhesive is prepared. The butyl hot melt adhesive prepared through the method is excellent in anti-ultraviolet property and easy to construct, has the excellent adhesive property on hollow glass materials and aluminum alloy strips and can not only meet usage of hollow glass, but also be applied to the fields such as photovoltaic backboard adhesion.

The invention discloses a polyolefin packaging adhesive film for a photovoltaic module. The polyolefin packaging adhesive film comprises the components in parts by mass: 100 parts of polyolefin, 0.1-1 part of cross-linking agent, 0.1-3 parts of coupling agents and 0.01-1 part of antiaging agent, wherein polyolefin is polyolefin of which melting index is 0.5-18g/10min and a melting point is between 55 and 93 DEG C. The polyolefin packaging adhesive film is a micro-crosslinking type polyolefin adhesive film, and the problems of apparent problems such as bubbles and poor thermal creeping resistance of the polyolefin adhesive film during packaging can be effectively solved; the polyolefin packaging adhesive film is high in optical performance, adhesion performance, ultraviolet-aging resistance and damp-heat aging resistance, is easy for control on production, and can completely meet the requirement of the lamination process of the existing photovoltaic modules.

The invention relates to a technology for preparing a blend for a composite insulator, and provides a light ageing resistant blend for a composite insulator and a preparation method thereof. The light ageing resistant blend is prepared from the following raw materials in part by weight: 100 parts of raw silicon rubber, 3 to 10 parts of activated zinc oxide, 18 to 40 parts of modified fumed silica, 0 to 5 parts of vinyl silicone oil, 1 to 10 parts of silane coupling agent, 1 to 6 parts of hydroxy silicone oil, 90 to 180 parts of active aluminum hydroxide powder, 0.2 to 2 parts of hydro silicon oil and 0.1 to 1 part of ultraviolet absorber (UV-531), and can be prepared by the conventional blend preparation process. The invention also provides a new preparation process, which comprises the following steps of: preparing a blend A and a blend B; and kneading, recycling, cooling and filtering the blend A and the blend B to obtain the light ageing resistant blend for the composite insulator. The blend has good ultraviolet ageing resistance, and is suitable for composite insulators in high altitude areas.

The invention discloses an ageing resistant type solar photovoltaic component sealing material and a preparation method thereof. The ageing resistant type solar photovoltaic component sealing material comprises the following components in parts by weight: 100 parts of poly organic siloxane, 5-20 parts of a plasticizer, 50-150 parts of a filler, 0.2-5 parts of a water absorbent, 1-10 parts of paste containing an ultraviolet light absorber, 1-15 parts of a crosslinking agent, 0.1-5 parts of a viscosity thickening agent and 0.1-1 part of a catalyst. The ageing resistant type solar photovoltaic component sealing material has the advantages that the paste containing the ultraviolet light absorber is added in the components, so that the obtained product is reduced by less than 5% in mechanical property after an ultraviolet aging test is carried out, has good bonding force with an aluminium frame of a photovoltaic cell and is non-corrosive to an EVA (ethylene vinyl acetate copolymer) adhesive film and a battery circuit; and the provided preparation method is simple in technology, equipment requirement is not harsh, and the technical effects of good ultraviolet ageing resistance and high curing speed of a one-component solar cell module sealant are realized.

The invention discloses a silicon fluoride self-cleaning glass nano-material, which is composed of solvent and active ingredients; the active ingredients are fluorinated modified silicone nano-particles, and the reaction raw materials comprise ortho-silicon ester and fluorine modified alkyl silane, with the ratio volume and dosage reaching 1.5-3:0.15-1.8. The invention also discloses a manufacturing method for the silicon fluoride self-cleaning glass nano-material, comprising two steps: synthesizing the surface modification of silica nano-particles, silica nano-particles; the ratio between volume and dosage for each added reactant is as follows: solvent: water: ortho-silicon ester: fluorine modified alkyl silane equals to 100: 1.5-3: 1.5-3: 0.15-1.8. The invention has simple production process, stable product performance, higher storage stability, excellent chemical properties, low surface energy and good tolerance against pollution, which is used for glass surface treatment; the contact angle between water and coating is greater than 110 degrees.

The invention relates to an ultraviolet aging resisting fiber-reinforced polymer base composite which comprises the following raw materials in parts by weight: 0.1-10 parts of a compound ultraviolet aging resisting agent, 40-90 parts of matrix resin, 5-60 parts of reinforced fiber and 3-30 parts of a curing agent and an accelerating agent together. Through the addition of the compound ultraviolet aging resisting agent and the reinforced fiber, the ultraviolet aging resisting fiber-reinforced polymer base composite has good ultraviolet aging resisting performance and excellent mechanical performance, can be used for manufacturing outdoor large-sized composite products, and can effectively improve the weather resistance of the products and prolong the service life of the products; when the composite is irradiated under ultraviolet rays for 1000 h, the falling range of the mechanical strength is less than 3%.

An anti-weathering polyoxymethylene material is prepared from atoleine and polyoxymethylene through proportioning, surface wetting, adding inorganic particles, optical stabilizer and thermooxidative stabilizer, fusing, pugging, extruding out for granulating, and injection moulding. Its advantage is high resistance to weathering, UV, thermooxidizing and hot water.

The invention discloses a seam beautifying agent and relates to the technical field of caulking agents. According to the seam beautifying agent provided by the embodiment of the invention, an aliphatic isocyanate curing agent reacts with aspartate resin to obtain a double-component polyurea seam beautifying agent material. The aspartate resin has good yellowing resistance and can form a polyurea polymer by reacting with aliphatic isocyanate, and urea bonds have high strength and toughness and good UV aging resistance and yellowing resistance. Therefore, the obtained seam beautifying agent hasgood weather resistance, aging resistance and yellowing resistance.

A three-element composition is prepared from polypropene (PP) (72-91 wt%), POE or MPOE (1-13) and BaSO4 (7-20) through mixing, stirring, kneading and extruding out. Its advantages are high impact strength, high toughness, high P/C ratio, high resistance to thermal or ultraviolet ageing, and low cost.

The invention relates to a novel aqueous light-cured alicyclic epoxy acrylic acid emulsion and a preparation method thereof. The method comprises the following steps: adding an emulsifier and a regulator in a reactor, preheating to 50 DEG C, then adding epoxy resin, cross-linking monomers, polymerization degree regulator and acrylic acid monomers, preserving the heat of reflux for 0.5h; heating partial solution and an initiator to 80 DEG C, when glowing blue, adding dropwisely the rest solution in 2.5 h, and refilling the initiator, preserving the heat of reflux for 1h, cooling to room temperature after the reaction, and then adding a photoinitiator. The invention provides a light-cured alicyclic epoxy acrylic acid emulsion with stability and good water-solubility, overcomes the defects of bad weatherability and bad resistance to heat and humidity of existing bisphenol-A epoxy resin, and simultaneously prevents the environment from being polluted by traditional solvent-based coating. The emulsion can be used for preparing outdoor coatings, light-cured printing ink, craft paints and the like, has the advantages of excellent performance, simple technology, and low cost, and is an environment friendly material with a wide market prospect.

The invention relates to a coupling agent modified silicon dioxide doped cycloaliphatic epoxy resin LED packaging adhesive. The adhesive is characterized in that: it is composed of component A and component B that are mixed in a ratio of 1: (0.9-1) for construction. Specifically, the component A consists of cycloaliphatic epoxy resin, an active diluent, a transparent blue-violet purple dye color paste, a defoaming agent and a softening agent. The component B consists of a curing agent, an accelerator, a silane coupling agent modified nano-ultraviolet absorbent, polyol and an antioxidant. The nano-silicon dioxide doped cycloaliphatic epoxy resin LED packaging adhesive provided in the invention has the advantages of good ageing resistance, strong binding power, fast curing, low viscosity and moisture absorption, so that employment of organosilicone with a high cost can be avoided. Meanwhile, the defects of high moisture absorption, poor ultraviolet resistance and low shortwave transmittance and the like of existing bisphenol A type epoxy resin can be overcome. The LED packaging adhesive provided in the invention is more suitable to be used as a high-end LED packaging adhesive, a high power LED packaging adhesive or an ultraviolet light-based white light and blue light LED packaging adhesive.

The invention relates to an interface agent for a high-speed railway ballastless track polyurethane caulking material and a preparation method thereof. The interface agent comprises the following raw materials in parts by weight: 100 parts of isocyanate prepolymers, 80-120 parts of solvents, 0.1-0.5 part of catalysts, 0.5-2.5 parts of water removal agents and 0.5-2.5 parts of anti-aging agents. The preparation method comprises the following two steps of: (1) slowly dripping polyhydric alcohol to isocyanate at the temperature of (85+/-5) DEG C, then increasing the temperature to (90+/-5) DEG C for continuous reaction, when the content of NCO groups is 14%-16%, adding organic silicon coupling agents, and reacting till the content of the NCO groups is 10%-12% so as to obtain a prepolymer; (2) adding the solvents, the catalysts, the water removal agents and the anti-aging agents to the prepolymer, uniformly stirring, and debubbling in vacuum (at vacuum degree less than or equal to -0.09MPa) to obtain the interface agent for the polyurethane caulking material. The interface agent disclosed by the invention has the characteristics of low viscosity, good impregnation property, high toughness, excellent hydrolysis-resistant property and alkali-resistant property, excellent adhesive property with concrete and the polyurethane caulking material, and the like.

The invention relates to a wear-resistant nonskid polyurethane deck paint, and a manufacture method thereof. The manufacture method comprises the following steps of: adding a hydroxyl acrylic resin, polyether polyol, hydroxyl-containing fluorocarbon acrylic resin, a polyacrylate copolymer solution, poly(methyl alkyl siloxane) solution and [b-[3-(2-H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxyphenyl]-1-oxopropyl]-hydroxypoly(oxo-1,2-ethanediyl) to a mixed solvent of xylene, n-butyl acetate, methyl isobutyl ketone and butanone for high-speed stirring; adding rutile titanium white powder, talcum powder, aluminum oxide ceramic powder, sericite powder, silicon micropowder, carbon black and gas-phased silicon dioxide; milling with a sand mill while controlling fineness of a mixture not higher than 60 mu m to obtain a liquid A; and forming a liquid B by a mixed solution of 1,6-hexamethylene diisocyanate tripolymer, anhydrous xylene and n-butyl acetate, and mixing 1 weight part of the liquid A with 0.2-1.0 weight part of the liquid B for use. The obtained wear-resistant nonskid polyurethane deck paint can be used for the corrosion protection of the steel surfaces of deck and ocean facilities.

The invention discloses a self-permeability-increasing high-permeability acid-resistant epoxy resin waterproof coating material and a preparation method therefor. The self-permeability-increasing high-permeability acid-resistant epoxy resin waterproof coating material consists of a component A and a component B, wherein the component A is prepared from epoxy resin, a fluorinated organosilicone modified epoxy reactive diluent and a carbonyl compound, and the component B is prepared from polyamine, a silane coupler and an accelerant. The self-permeability-increasing high-permeability acid-resistant epoxy resin waterproof coating material is good in permeability, plays dual roles in preventing seepage and reinforcing and has good acid resistance and low-temperature flexibility.

The invention discloses aqueous weather-resisting polysiloxane coating. The aqueous weather-resisting polysiloxane coating is composed of a component A and a component B, wherein the weight ratio of the component A to the component B is 10 to (0.5 to 1.5); the component A is prepared from the following raw materials in parts by weight: 20 to 40 parts of modified polysiloxane resin, 15 to 30 parts of aqueous fluorocarbon resin, 5 to 20 parts of aqueous weather-resisting alicyclic epoxy resin, 5 to 15 parts of precipitated barium sulfate, 5 to 10 parts of calcined kaolin, 15 to 30 parts of nano material, 1 to 2 parts of hydroxypropyl methyl cellulose, 1 to 2 parts of de-foaming agent, 1 to 2 parts of wetting agent, 1 to 2 parts of dispersant, 1 to 2 parts of flatting agent and 15 to 30 parts of water; the component B is prepared from the following raw materials in parts by weight: 5 to 10 parts of aqueous polyurethane curing agent, 1 to 4 parts of aminosilane curing agent, 10 to 18 parts of propylene glycol monomethyl ether acetate and 0.2 to 0.8 parts of catalyst. The aqueous weather-resisting polysiloxane coating is environmentally friendly and has excellent adhering force and antiseptic property, and long service life.

The invention provides a polyurethane gel coat combination capable of spraying blades of a fan conventionally and a preparation method of the polyurethane gel coat combination. The combination is prepared by the following steps: mixing polyester polyol and an isocyanate curing agent according to a certain proportion to serve as a main film former, and adding a filler, a pigment, auxiliaries and areaction regulator. The reaction regulator includes a drier and a retardant, and the retardant includes one or more Louis acidic compounds having double-teeth ligand structures. Therefore, the gelation time of the polyurethane gel coat is effectively prolonged, the spraying operation can be realized with conventional coating equipment, the current reality that solvent-free gel coats for the blades of a fan can only be coated in a roller coating way or by adopting special equipment is changed, not only is the excellent protecting performance of the solvent-free polyurethane gel coats realized,but also the fine processability of the solvent-free polyurethane gel coats is realized. The invention also provided a preparation method of the polyurethane gel coat combination. The polyurethane gel coat combination prepared according to the invention also has the excellent properties of being tough and tensile, wear-resisting, sand-wind-resisting, ultraviolet-resisting and ageing-resisting andthe like.

The invention discloses a wear resistance and anti-ultraviolet coating for polycarbonate, and the coating is prepared through the following method: adding alkaline silica sol, distilled water, ultraviolet light absorber and acetic acid into a reactor; heating, and starting to dropwise add alkoxy silane with at least two degrees of functionality when a system temperature reaches 60 DEG C, wherein the dropwise adding takes 1 to 3 hours and the reaction system temperature in a dropwise adding process is controlled to be 60 to 72 DEG C; adding an adhesion promoter for heating and refluxing for 0.5 to 2 hours after dropwise adding, and adding a silane coupling agent and a solvent after cooling to below 40 DEG C. The coating layer obtained from the coating has performances of good transparency, wear resistance, water resistance, anti-ultraviolet ageing and the like.