817 results about "Hindered amine light stabilizers" patented technology

The invention provides a low-cost flow battery and an application thereof, a redox active substance of a positive electrode electrolyte of the low-cost flow battery contains a hydroxylamine cyclic structure group with hindered amine, and the hydroxylamine cyclic structure group with hindered amine is preferably selected from 1-hydroxy-2, 2, 6, 7, 8-tetramethyl-1, 3, 5-tetramethyl-1, 3, 5-tetramethyl-1, 3, 5-tetramethyl-1, 3, 5-tetramethyl-1, 3, 5-tetramethyl-1, 3, 5-tetramethyl-1, 3, 5-tetramethyl-1, one or more of a 1-oxo-2, 2, 6, 6-tetrasubstituted piperidine group, a 1-oxo-2, 2, 6, 6-tetrasubstituted piperidine group, a 1-oxo-2, 2, 6, 6-tetrasubstituted piperidine group, and a 1-oxo-2, 2, 6, 6-tetrasubstituted piperidinium group; a redox active substance of the negative electrode electrolyte contains one or more of a titanium element, a vanadium element, a chromium element, an iron element and a zinc element. The low-cost flow battery has the advantages of high output voltage, high energy density, environment friendliness and low cost, and has good application prospects and large-scale popularization potential in the field of energy storage.

The invention discloses a high-strength polyethylene film and a preparation method thereof, and relates to the technical field of high polymer materials. The invention discloses a high-strength polyethylene film. The high-density polyethylene composite material is prepared from the following raw materials in parts by weight: 35 to 45 parts of high-density polyethylene, 25 to 35 parts of linear low-density polyethylene, 12 to 18 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of nano silicon dioxide, 3 to 7 parts of organic montmorillonite, 1.5 to 3.5 parts of hindered amine light stabilizer, 1.5 to 2.5 parts of antioxidant 1010, 0.8 to 1.2 parts of calcium stearate, 0.8 to 1.2 parts of zinc stearate, 0.8 to 1.2 parts of silane coupling agent and 4 to 6 parts of maleic anhydride grafted polyethylene. The composite material is prepared from the following components in parts by weight: 1.5-3.5 parts of a quaternized chitosan-nano silver compound, 6-9 parts of a modified toughening agent, 4-7 parts of a modified heat-resistant agent, 1.5-3.5 parts of a processing aid, 0.15-0.35 part of dibenzoyl peroxide and 0.5-1.5 parts of a nucleating agent DBS. The composite material is excellent in comprehensive performance, high in strength, good in flexibility and puncture resistance, excellent in aging resistance, heat resistance, chemical resistance and antibacterial property, good in processability, capable of meeting the requirements of multiple fields such as packaging and agriculture, scientific in preparation method and high in practical value.

The invention relates to a high-strength wear-resistant polyethylene gas pipeline and a preparation method thereof, and belongs to the technical field of high polymer materials. The high-density polyethylene, the modified ethylene propylene diene monomer, the modified chlorinated polyethylene rubber, the modified basalt fiber, the silicon carbide ceramic material, the magnesium oxide, the lubricant, the hindered amine light stabilizer, the hindered phenol antioxidant, the antistatic agent and the like are adopted as raw materials for compounding; and according to the material properties and dispersion characteristics of all the components, the process steps and parameters of mixing, banburying, extruding and the like are designed, so that the production of the pipeline can be well realized, and the gas pipeline with uniform quality and excellent performance is obtained. The compressive strength, the impact resistance and the wear resistance of the pipeline are greatly improved, the weather resistance of the pipeline is effectively improved, the service performance of the pipeline is comprehensively improved, the service life of the pipeline is comprehensively prolonged, and the pipeline is more suitable for being used in various severe environments, can meet the use requirements of long-distance construction, long-term friction and high-pressure environments and can be widely applied to high, medium and low-pressure gas conveying. Civil and industrial fuel gas conveying is achieved.

The invention belongs to the technical field of polyurethane materials, and provides a high-damping anti-fatigue and anti-aging polyurethane elastomer and a preparation method thereof. The high-temperature-resistant polyurethane elastomer is prepared from the following raw materials in parts by weight: 20 to 30 parts of poly (diethylene glycol adipate) glycol (PDA), 30 to 50 parts of polytetrahydrofuran ether glycol (PTMEG), 5 to 15 parts of chain extender, 0.1 to 0.3 part of A33, 0.1 to 0.2 part of organic tin catalyst, 2 to 5 parts of hindered phenol antioxidant, 1 to 3 parts of hindered amine light stabilizer, 3 to 8 parts of nano particles and 30 to 50 parts of isocyanate prepolymer. The isocyanate prepolymer is prepared from 1, 4-phenyl diisocyanate (PPDI) and branched chain-containing polytetrahydrofuran glycol PTXG according to a mass ratio of 1: (1.8 to 2.2). The polyurethane elastomer is excellent in damping performance and fatigue aging resistance, and meets the use requirements under complex working conditions.

The invention discloses a synergistic compound light stabilizer for an automobile coating and a preparation method of the synergistic compound light stabilizer, and belongs to the technical field of coating additives. The light stabilizer comprises the following components in percentage by mass: 30-50% of a hindered amine light stabilizer, 20-40% of an ultraviolet light absorber, 5-15% of surface modified nano cerium dioxide, 5-10% of a hyperbranched polyester anti-migration aid and the balance of a solvent, wherein the ultraviolet light absorber is a mixture of benzotriazole and triazine in a mass ratio of (1: 1)-(1: 3); the particle size of the nano cerium dioxide is 10-50nm, and the surface of the nano cerium dioxide is coated with a silane coupling agent; the preparation method comprises the following steps: modifying the surface of nano cerium dioxide, shearing and dispersing multiple components at a high speed, and adjusting and filtering a solvent; the weather resistance of the automobile coating is remarkably improved and the service life of the automobile coating is remarkably prolonged through the synergistic effect of a plurality of light stabilizing components and the combination of the photocatalytic degradation capability of the nano cerium dioxide and the anti-migration characteristic of the hyperbranched polyester.

The invention belongs to the technical field of coatings, and discloses an anti-yellowing and high-hardness UV (ultraviolet) laminating varnish as well as a preparation method and application thereof. The UV film coating varnish comprises six-functionality alicyclic polyurethane acrylic resin, two-functionality linear polyurethane acrylic resin, pure acrylic resin, an acrylate reactive diluent, a filler, an ultraviolet light absorber, a non-alkaline hindered amine free radical scavenger and a photoinitiator. The weight ratio of the six-functionality alicyclic polyurethane acrylic resin to the two-functionality linear polyurethane acrylic resin to the pure acrylic resin to the acrylate reactive diluent is (2.5-3.5): (1-1.5): 0.5: (2.0-3.0); the bifunctional linear polyurethane acrylic resin is prepared from the following raw materials: isocyanate, poly (1, 4-butanediol) and hydroxyethyl acrylate. A paint film formed by the UV film-coated varnish has good yellowing resistance and high hardness, and is not easy to crack after thermal cycling.

The invention relates to a weather-resistant anti-aging polyethylene pipeline and a preparation method thereof, and belongs to the technical field of high polymer materials. The pipeline is prepared from high-density polyethylene resin, linear low-density polyethylene resin, polyimide resin micro powder, nano silicon dioxide, nano hexagonal boron nitride, polybenzimidazole fibers, carnosic acid, zinc glycyrrhetinate, an antioxidant 1010, a hindered amine light stabilizer and a polydimethylsiloxane titanate cross-linked polymer. The preparation method comprises the following steps: taking 1, 3-methacryloxypropyltriethoxysilane as a raw material; according to the preparation method, polyimide resin micro powder, carnosic acid and zinc glycyrrhetinate are uniformly mixed and then are modified at 300-350 DEG C for 30-60 minutes to obtain a modified substance, so that the weather resistance and the aging resistance of the pipeline can be better improved. All the components are compatible with one another, and a special modification preparation method is adopted, so that the synergistic effect of the components is better exerted, and the weather resistance and the aging resistance of the polyethylene pipeline are greatly improved.

The invention belongs to the technical field of building materials, and discloses a preparation method of reflective heat-insulation waterproof real stone paint, which comprises the following three process stages: core layer synthesis, shell layer loading and real stone paint integration: coating a continuous SiO layer on the surface of nano TiO in situ to form TiO-coated SiO particles; graphene quantum dots and a hindered amine light stabilizer are loaded on the surfaces of TiOatSiO particles to form a composite functional filler; adding the composite functional filler into the acrylic emulsion base material in batches at a low speed, and adjusting the rheological property with the aid to obtain a finished product. The preparation process disclosed by the invention is completely compatible with an existing real stone paint industrial production line, does not need to add special equipment, and has excellent reflective heat insulation, heat preservation, water resistance, weather resistance and aging resistance and large-scale industrial feasibility; the technical problems of resin oxidative degradation caused by TiO photocatalytic activity, rapid attenuation of solar radiation reflectivity, failure of waterproof and hydrophobic performance and easiness in damage and stripping of a coating structure of the existing nano TiO-based reflective heat-insulation real stone paint are solved.

The invention discloses a hindered amine light stabilizer as well as a preparation method and application thereof. The hindered amine light stabilizer is generated by polymerizing a component A containing a hindered amine structure and-OH and a component B containing at least two isocyanate groups, has the advantages of efficient anti-aging performance, high molecular weight, difficulty in emigration in a high polymer material product, good thermal stability and the like, and has a structure similar to that of polyester / polyurethane. The polyester / polyurethane composite material has good compatibility with a polyester / polyurethane material. The preparation method provided by the invention is simpler, low-carbon and environment-friendly.

The invention discloses a quick-curing polyurethane seamless expansion joint material for roads and a preparation method, and belongs to the technical field of road engineering materials. The material is prepared from polyether polyol, polycaprolactone glycol, a bisphenol A epoxy-polyether block isocyanate terminated prepolymer, a methyl phenyl silicon-boron hybrid hydroxyl chain extender, diphenylmethane diisocyanate, calcium carbonate, wollastonite, a hindered amine anti-aging agent and dioctyl phthalate. Wherein the bisphenol A epoxy-polyether block isocyanate terminated prepolymer is prepared by the following steps: reacting bisphenol A with epoxy chloropropane to generate epoxy resin, reacting with polytetramethylene ether glycol, and introducing isophorone diisocyanate; the methyl phenyl silicon-boron hybrid hydroxyl chain extender is prepared by carrying out hydrosilylation and ethylene glycol reaction on methyl trimethoxy silane, 3-glycidyl ether oxypropyl trimethoxy silane and allylboronic acid pinacol ester; and the methyl phenyl silicon-boron hybrid hydroxyl chain extender is prepared by carrying out hydrosilylation on methyl trimethoxy silane, 3-glycidyl ether oxypropyl trimethoxy silane and allylboronic acid pinacol ester. The material has the advantages of quick curing property, weather resistance and high-temperature stability, and is suitable for road seamless expansion joint scenes.

The invention relates to an ultraviolet deoxidizing and fresh-keeping packaging material and application thereof, and belongs to the technical field of packaging materials. According to the invention, trimethylolpropane triacrylate and ethylenediamine are used as raw materials, a hyperbranched polymer with terminal double bonds is constructed based on Michael addition, then a sulfydryl-containing hindered amine light stabilizer obtained by ester exchange of methyl thioglycolate and pentamethylpiperidinol is added, and the hindered amine light stabilizer and alkyl mercaptan are subjected to a sulfydryl-alkene click reaction together. The light stabilizer and plastic are subjected to melt blending and then subjected to curtain coating to form a film to serve as an outer layer, and one face of the outer layer is coated with coating liquid prepared from a dispersing agent, PET, an active substance capable of generating triplet excitons under irradiation of ultraviolet light, an antioxidant, an ultraviolet light absorber and a stabilizer. When the ultraviolet deoxidization fresh-keeping packaging material is applied to packaging of articles, deoxidization can be achieved through irradiation of ultraviolet light, and the degradation effect of the ultraviolet light on the outer layer is very little.

The invention relates to the technical field of preparation of building external wall thermal insulation materials, in particular to a building external wall thermal insulation board based on pearl wool and a preparation method of the building external wall thermal insulation board. The core layer is prepared from the following raw materials in parts by weight: 40 to 60 parts of pearl wool particles, 5 to 15 parts of graphene-loaded expanded graphite, 3 to 10 parts of nano silicon dioxide aerogel, 10 to 20 parts of ammonium polyphosphate, 5 to 12 parts of pentaerythritol, 3 to 8 parts of melamine, 15 to 25 parts of ethylene-vinyl acetate copolymer, 5 to 10 parts of maleic anhydride grafted polyethylene, 2 to 6 parts of nano montmorillonite and 1 to 5 parts of silicon carbide whisker; the composite material is prepared from the following components in parts by weight: 0.5-2 parts of a silane coupling agent KH560, 0.2-0.8 part of an antioxidant 1010, 3-8 parts of amino-terminated polyether and 0.3-1 part of a hindered amine light stabilizer 770. The thermal insulation board is excellent in thermal insulation, mechanical property and flame retardant property, good in weather resistance, stable in size and high in construction adaptability, pearl wool can be recycled, and the thermal insulation board has practical and environment-friendly values.

The invention provides a method for preparing a hindered amine light stabilizer. The method comprises the following steps: (1) carrying out substitution reaction on a compound I-2 and alcohol amine as shown in a formula I-3 to obtain a compound I-4; and (2) carrying out an alkoxylation reaction on the compound I-4 and cyclohexane in the presence of an oxidizing agent to obtain the hindered amine light stabilizer as shown in the formula I. The method disclosed by the invention is short in period, high in total product yield and simple in post-treatment step. # imgabs0 #

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

An absorbent for carbon dioxide capture, and a carbon dioxide capturing and absorbing method. The absorbent comprises, in percentages by mass, 40-70% of a main absorbent, 1-20% of an accelerator, 0.05-1% of a corrosion inhibitor, and 0.1-1% of an antioxidant, with the balance being water. The main absorbent comprises, in percentages by mass, 0-40% of a fatty amine, and 60-100% of an alcohol amine. The accelerator comprises at least one of a salt, a hindered amine and a sulfur-containing organic compound comprising S＝O, wherein the mass ratio of the salt to the hindered amine to the sulfur-containing organic compound is (0-2):(0-4):(0-6). The absorbent has a viscosity of less than or equal to 20 cp. The above formula improves the carbon dioxide capture and absorption capacity and regeneration effect of the absorbent, and can reduce energy for regeneration.

Disclosed are a build-up adhesive film for a flame-retardant FC-BGA packaging substrate, a preparation method therefor, and a use thereof, said film comprising, in parts by weight: 30-40 parts of an epoxy resin; 20-25 parts of a curing agent; 1-3 parts of a phenoxy resin; 0.05-0.1 parts of a curing accelerator; 80-100 parts of an inorganic filler, the inorganic filler being selected from one or two of modified boron nitride nanotubes and modified silica; the curing agent comprises a phosphorus-containing cyanate. The present invention uses the curing agent and the inorganic filler to form a composite flame retardant system on the basis of the epoxy resin, the phenoxy resin, the curing accelerator and other components to ensure the application of the build-up adhesive film in FC-BGA packaging substrates; the curing agent uses a phosphorus-containing cyanate, and when it burns, the phosphorus-containing group generates a phosphaphenanthrene group in the gas phase, which can form a stable structure and provide a free radical quenching function; in addition, the nitrogen-containing structure can also obtain a hindered amine structure having a quenching effect, forming a non-flammable gas, providing a gas phase dilution function, and effectively improving the flame retardant effectiveness of the build-up adhesive film.

The present invention relates to a weather-resistant and anti-aging polyethylene pipeline and a preparation method thereof, and belongs to the technical field of polymer materials. The pipeline adopts high-density polyethylene resin, linear low-density polyethylene resin, polyimide resin powder, nano silicon dioxide, nano hexagonal boron nitride, polybenzimidazole fiber, carnosic acid, zinc glycyrrhetinate, antioxidant 1010, hindered amine light stabilizer, polydimethylsiloxane titanate cross-linked polymer, 3-methacryloxypropyl triethoxysilane as raw materials; wherein, polyimide resin powder, carnosic acid and zinc glycyrrhetinate are uniformly mixed, and then modified at 300°C to 350°C for 30min to 60min to obtain a modified product, which can better improve the weather resistance and aging resistance of the pipeline. Each component is compatible with each other, and a special modified preparation method is adopted to better play the synergistic effect of the components, and greatly improve the weather resistance and aging resistance of the polyethylene pipeline.

The invention relates to the technical field of anti-drag films, and particularly discloses an ultraviolet aging resistant anti-drag film and a preparation process thereof.A hindered amine light stabilizer HALs and a silane coupling agent KH-560 are introduced into substrate TPU resin, the strength, heat resistance and aging resistance of the material are enhanced, then an adhesive layer is formed on a substrate film, and the anti-drag film is prepared. A disulfide bond in the adhesive layer has a reversible fracture-self-repairing function, the fatigue resistance of the material is enhanced, the long-term service life of the material is prolonged, the surface layer is acrylic resin formed through copolymerization, the structure comprises a flexible alkyl chain and a siloxane chain segment, a microstructure is formed through hot rolling, the aerodynamic performance is optimized, and the purpose of reducing frictional resistance is achieved.

The invention belongs to the technical field of building materials, and discloses a bio-based nylon thermal insulation material and a preparation method thereof, the bio-based nylon thermal insulation material comprises the following raw materials by weight: 75-85 parts of PA56, 25-35 parts of poly (p-phenylene terephthalamide), 20-30 parts of a modified filler, 1-2 parts of color masterbatch, 0.5-1.5 parts of a lubricant, 0.5-1.2 parts of an anti-aging agent, and 0.1-0.2 part of a cross-linking agent. According to the technical scheme, the modified filler containing the glass fibers, the hollow glass beads and the rich fluorine atoms has good compatibility with other raw materials, and has chemical action with the anti-aging agent containing a hindered phenol structure, a hindered amine structure and a benzophenone structure, so that the anti-aging performance of the modified filler is greatly improved, and the service life of the anti-aging agent is prolonged. The modified filler and the anti-aging agent can be highly dispersed and stably exist in the nylon heat-insulating material, play a role to the greatest extent, endow the nylon heat-insulating material with excellent and stable mechanical property, hydrophobic property, anti-aging property and the like, and greatly prolong the service life of the nylon heat-insulating material.

The invention provides a water-dispersible reactive light stabilizer and a water-based polymer material. The water-dispersible reaction type light stabilizer comprises a first component, a second component and a third component, wherein the first component is a reaction type hindered amine light stabilizer and / or a reaction type ultraviolet light absorber; a second component: an emulsifier; the emulsifier is at least two nonionic surfactants, or simultaneously comprises at least one anionic surfactant and at least one nonionic surfactant; the anionic surfactant is a sulfonate type anionic surfactant or a phosphate salt anionic surfactant; an optional third component: a co-emulsifier; and when the first component contains the reactive ultraviolet light absorber, the water-dispersible reactive light stabilizer must contain the third component. The water-dispersible reactive light stabilizer provided by the invention can be dispersed in water in a stable form, so that the water-dispersible reactive light stabilizer can be stably added into a water-based high polymer material without adding a cosolvent, the environmental protection property of the water-based high polymer material is fully ensured, and the water-based high polymer material is free of VOC (Volatile Organic Compounds) harm.

The purpose of the present invention is to provide a flame retardant that uses an N-alkyl type hindered amine compound and imparts excellent flame retardancy to a synthetic resin.　The present invention provides a flame retardant containing a hindered amine compound (A), wherein the hindered amine compound (A) is a compound represented by general formula (1).　In general formula (1), R1 represents a carbonyl group or the like, R2 represents a hydrocarbon group having 1-18 carbon atoms, and R3 to R6 each independently represent an alkyl group having 1-4 carbon atoms.

The invention relates to the technical field of pigment color paste, and discloses pigment color paste special for automobile highlight black and a preparation method of the pigment color paste, and the pigment color paste is prepared by taking environment-friendly polyurethane resin, melanin pigment, a nano silicon dioxide filler, a flatting agent, a defoaming agent, zirconium oxide nanoparticles and anti-ultraviolet microcapsules as raw materials. On one hand, the construction performance of the pigment color paste is improved through regulation and control of a formula, on the other hand, the content of volatile organic compounds is reduced through selection of environment-friendly polyurethane resin, and on the third hand, by preparation of the anti-ultraviolet microcapsules and utilization of hindered amine functional groups and nano titanium dioxide in the anti-ultraviolet microcapsules, the anti-ultraviolet performance of the pigment color paste is improved. According to the present invention, the pigment color paste is endowed with the excellent UV protection function, the aging resistance of the pigment color paste is improved, the pigment color paste can maintain the good and stable performance under the long-term outdoor condition, and the application range of the pigment color paste in the severe environment is broadened.

The invention belongs to the technical field of preparation and surface protection of polyurethane coatings, and particularly relates to weather-resistant polyurethane and a preparation method thereof. The coating provided by the invention is composed of a component A and a component B according to a weight ratio of 1: (0.2-0.4). The component A is prepared from water-based fluorine-containing hydroxy acrylic dispersion resin with a high hydroxyl value, GMA (glycidyl methacrylate) grafted modified water-based acrylic dispersion resin, a benzotriazole ultraviolet light absorber, a light hindered amine stabilizer, rutile titanium dioxide, wet sericite powder, nano zinc oxide and auxiliaries; and the component B comprises an aliphatic isocyanate curing agent and propylene glycol diacetate. By constructing a quadruple synergistic weather-resistant mechanism of ultraviolet absorption, free radical capture, physical shielding and structural densification, the weather resistance and corrosion resistance of the coating are remarkably improved while the coating keeps excellent adhesive force (0-1 level) and hardness (2H-3H), the color change delta E is smaller than or equal to 1.8 after artificial accelerated aging for 1000 hours, the gloss loss rate is smaller than or equal to 23%, and the weather resistance and corrosion resistance of the coating are greatly improved. And the corrosion spreading width of a 600-hour salt spray test lineation is less than or equal to 2.3 mm.

The invention discloses a weather-resistant anti-aging polypropylene material and a preparation method thereof. The weather-resistant and anti-aging polypropylene material is prepared from polypropylene resin, vinyl amino compound grafted polypropylene, modified filler, an ultraviolet light absorber, a hindered amine light stabilizer, an antioxidant and an acid remover, the vinyl amino compound grafted polypropylene is prepared by carrying out free radical copolymerization reaction on polypropylene and a vinyl amino compound in a reaction solvent; the reaction solvent comprises a main solvent and a cosolvent in a mass ratio of 100: (0.5-1.2); the main solvent is selected from xylene or decahydronaphthalene, and the cosolvent is selected from N, N-dimethylformamide or methyl ethyl ketone. The invention aims to improve the compatibility of the weather-resistant auxiliary agent and polypropylene resin, solve the degradation effect of a traditional maleic anhydride grafted polyolefin compatilizer on a polypropylene matrix, and improve the weather resistance and aging resistance of a polypropylene material.

The invention discloses a UV-cured high-weather-resistance optical thin film and a preparation method thereof, and relates to the technical field of optical thin films. The optical film is prepared by taking polyethylene glycol terephthalate as a base material and coating the base material with a UV curing coating, and the UV curing coating comprises the following raw materials in parts by weight: 15-20 parts of aliphatic polyurethane acrylate, 5-8 parts of perfluorobutyl ethyl acrylate, 8-12 parts of hydroxyethyl acrylate, 6-10 parts of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of 1, 2, 4-trimethyl-1, the invention relates to a UV (ultraviolet)-resistant coating which is prepared from the following raw materials in parts by weight: 1-2 parts of 2, 6-hexanediol diacrylate, 5-8 parts of trimethylolpropane triacrylate, 30-40 parts of modified epoxy acrylate, 1-2 parts of a silane coupling agent KH-570, 2-3 parts of a photoinitiator 1173, 0.5-1.2 parts of a modified ultraviolet absorbent UV-327, 0.8-1.5 parts of a hindered amine light stabilizer 540, 0.3-0.8 part of an antioxidant 1010, 0.09-0.12 part of an ultraviolet absorbent Tinuvin400 and 0.2-0.5 part of polyether modified polydimethylsiloxane. According to the UV-cured high-weather-resistance optical thin film, polyethylene glycol terephthalate is used as a base material, key raw materials such as a UV-cured coating with a scientific formula, modified epoxy acrylate and the like are finely prepared, a two-stage curing process is adopted, and the weather resistance is excellent.

The invention provides a novel hindered amine light stabilizer as well as a preparation method and application thereof, and relates to the field of light stabilizers. According to the preparation method of the novel hindered amine light stabilizer, specific dibasic acid dimethyl ester and 2, 2, 6, 6-tetramethylpiperidinol are used as raw materials, an alkane solvent or a benzene solvent is used as a solvent, and a catalytic reaction solution is obtained through a heating reaction under the condition of a catalyst; and neutralizing and washing the catalytic reaction liquid to obtain the novel hindered amine light stabilizer. According to the preparation method, ideal preparation effects (such as purity, yield and the like) can be achieved, meanwhile, the chroma of the product is effectively reduced, the problem that the product is prone to yellowing due to the fact that the hindered amine light stabilizer absorbs visible light is solved, and the compatibility and stability of the hindered amine light stabilizer and a high polymer material are further improved.

The invention relates to a composite material for a deck and a preparation method thereof, belongs to the technical field of composite materials, and solves the problems that the composite material for the deck in the prior art is easy to break in the installation process due to poor toughness and insufficient impact resistance, and is easy to whiten and yellow due to insufficient weather resistance. The invention provides a composite material for a deck. The composite material comprises polypropylene A, chopped glass fibers, a flexibilizer, rare earth stearate, a compatilizer, an antioxidant and a composite light stabilizer, wherein the composite light stabilizer is a master batch prepared by mixing and compounding a low-molecular-weight benzotriazole light stabilizer and a high-molecular-weight hindered amine light stabilizer and then banburying with polypropylene B. The composite material is high in strength and toughness matching degree, and is not easy to break during installation; and the environment tolerance is good, the weather resistance can reach 4-5 levels, the appearance of the floating fiber reaches a superior level, and the floating fiber can be widely applied to decks of various aircrafts and other structures or appearance parts.

The invention relates to a thermoplastic molding composition (P) comprising: (A) thermoplastic polymer composition (A) comprising: (A-1) 10 to 50 wt.-% of graft copolymer (A-1), (A-2) 1 to 50 wt.-%, of thermoplastic polymer matrix (A-2) based on one or more vinylaromatic copolymers, (A-3) 20 to 50 wt.-%, of polymerized alkyl methacrylate component (A-3), and (A-4) 0 to 45 wt.-% of comonomer which is copolymerized with the at least one polymerized alkyl methacrylate component (A-3), where the sum of (A-1), (A-2), (A-3) and optional comonomers (A-4) is 83.2 to 99.8 wt.-%; (B) a hindered amine light stabilizer composition (B), comprising at least two of substances (B-1) to (B-3): (B-1) 0 to 0.9 wt.-%, of at least one hindered amine light stabilizer having a dipiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the dipiperidine structure (B-2) 0 to 0.9 wt.-%, of a hindered amine light stabilizer mixture having a monopiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the monopiperidine structure, and (B-3) 0 to 2 wt.-%, of at least one hindered amine light stabilizer having a polymeric structure comprising piperidine groups with at least one alkyl group at each of the 2 and 6 positions of the piperidine groups (C) 0 to 5 wt.-%, of one or more further additives (C), different from (B); and (D) 0 to 10 wt.-%, of colorants, dyes and / or pigments (D), different from (C); wherein the constituents (A) to (D) sum up to 100 wt.-% of the molding composition (P).

The invention discloses a high-performance film for an automobile touch screen and a preparation method of the high-performance film, and relates to the technical field of touch screen films. According to the preparation method, 3-chloropropyltriethoxysilane reacts with N, N-dimethylethanolamine, quaternary ammonium salt groups are introduced to nano silicon dioxide particles, the nano silicon dioxide particles are endowed with antistatic and antibacterial activity, then through polycondensation and hydrolysis reaction of vinyltriethoxysilane, the dispersity and compatibility of the nano silicon dioxide particles in a polymer are improved, the mechanical strength of a coating is enhanced, agglomeration is avoided, and the anti-static and antibacterial properties of the coating are improved. Meanwhile, constructing a photo-crosslinking network by using polyethylene glycol diacrylate; the copolymer contains fluorine, hindered amine and other groups, and forms another network through the cross-linking agent to provide an anchoring frame for functional groups, so that the coating realizes long-acting synergy of antistatic, anti-ultraviolet, anti-fingerprint and other functions in an automobile environment.

The present invention relates to a polypropylene composition comprising a polymer of propylene, a halogen-free flame retardant containing nitrogen and phosphorus, a pigment and additives, wherein the additives comprise at least one hindered amine light stabilizer (HALS) containing at least one ester-group and at least one acid scavenger. The present invention is, furthermore, directed to an article comprising the polypropylene composition, and to the improvement of the UV stability of a polypropylene composition comprising a halogen-free flame retardant containing nitrogen and phosphorus.