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62results about How to "Improved performance against UV aging" patented technology

Organic zirconium phosphate modifier based on waste plastic derivative, anti-aging asphalt-based material and preparation method thereof

The invention discloses an organized zirconium phosphate modifier based on waste plastic derivatives, an anti-aging asphalt-based material and a preparation method of the organized zirconium phosphate modifier and the anti-aging asphalt-based material, and belongs to the field of preparation of building materials.The organized zirconium phosphate modifier based on the waste plastic derivatives is added into asphalt, and the organized zirconium phosphate modifier has a layered structure, so that the anti-aging asphalt-based material is prepared; ultraviolet rays can be effectively absorbed, and the ultraviolet aging resistance of the asphalt is greatly improved. In addition, a large number of active sites also exist on the surface of zirconium phosphate, the effect of capturing free radicals can be achieved, the free radicals are prevented from participating in the oxidation reaction, and therefore a certain anti-oxidation function is achieved.
Owner:BEIJING UNIV OF TECH +1

Weather-resistant transparent adhesive, preparation method and application of weather-resistant transparent adhesive to adhesion of weather-resistant and wear-resistant transparent film and color-coated sheet

The invention relates to the technical field of adhesives, and discloses a weather-resistant transparent adhesive, a preparation method and application of the weather-resistant transparent adhesive to adhesion of a weather-resistant and wear-resistant transparent film and a color-coated sheet. The preparation method of the weather-resistant transparent adhesive comprises the following steps: reacting 4-(2, 3-ethylene oxide) benzaldehyde with tetrakis (3-mercaptopropionic acid) pentaerythritol ester to obtain an intermediate product A; reacting the intermediate product A with 4, 5-diaminobenzene-1, 2-diphenol to obtain an intermediate product B; preparing nano zinc oxide, performing surface modification on the nano zinc oxide, and grafting the intermediate product B to obtain an organic-inorganic hybrid curing agent; modifying epoxy resin by using the composite modifier to obtain modified epoxy resin; the modified epoxy resin, the organic-inorganic hybrid curing agent and the accelerant are mixed and stirred, and the weather-resistant transparent adhesive is obtained; the weather-resistant transparent adhesive disclosed by the invention is high in transparency and has excellent mechanical strength, toughness, adhesiveness and weather resistance.
Owner:LORICA NEW MATERIAL TECH (JIANGSU) CO LTD

Anti-ultraviolet aging polylactic acid composite fiber membrane and preparation method thereof

The invention relates to the technical field of fiber membranes, and discloses an anti-ultraviolet aging polylactic acid composite fiber membrane, and compared with a pure-phase polylactic acid fiber membrane, a polylactic acid fiber membrane added with benzophenone-based polyethylene glycol grafted nano titanium dioxide has stronger mechanical properties and anti-ultraviolet aging capability, and the anti-ultraviolet aging polylactic acid composite fiber membrane has the advantages that the mechanical property is better; nanometer titanium dioxide is a broadband series semiconductor additive material, a network structure can be formed between the nanometer titanium dioxide and an organic matrix, the mechanical performance of the fiber membrane is improved, the ultraviolet absorption capacity of the polylactic acid fiber membrane is improved, and a benzophenone derivative can serve as an ultraviolet absorbent to be added into the polylactic acid fiber membrane, so that the ultraviolet absorption capacity of the polylactic acid fiber membrane is improved. The anti-ultraviolet aging effect of the polylactic acid fiber membrane is improved, the polyethylene glycol and the polylactic acid have good compatibility, and the anti-ultraviolet aging and mechanical properties of the nano titanium dioxide in the polylactic acid fiber membrane are improved.
Owner:HUZHOU YUNZE ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Weather-resistant ABS dyeing material as well as preparation method and application thereof

The invention belongs to the technical field of weather-resistant ABS (Acrylonitrile Butadiene Styrene) dyeing materials, and particularly relates to a weather-resistant ABS dyeing material as well as a preparation method and application thereof. Comprising the following components in parts by weight: 70-95 parts of ABS resin, 0.1-0.6 part of an antioxidant, 0.2-1 part of a weather-resistant agent and 0.1-2 parts of toner, the antioxidant is one or more of an antioxidant 1010, an antioxidant 1076 and an antioxidant 168; the weather-resistant agent is one or more of UV944, UV783, UV770, UV622, UV531, UV329, UV328, UV327 and UV-P (Ultraviolet-P); the toner is one or more of titanium dioxide, EG red, 3G orange and iron oxide red. Compared with the prior art, the ABS dyeing material for the parking air conditioner shell provided by the invention has higher color stability and higher ultraviolet aging resistance, meets the use requirements of the automobile industry on weather-resistant ABS materials, and has a wide application prospect.
Owner:QINGDAO GON TECH CO LTD

Anti-aging high-strength nylon material for automobiles and preparation process of anti-aging high-strength nylon material

The invention provides an anti-aging high-strength nylon material for automobiles and a preparation process of the anti-aging high-strength nylon material, and is applicable to the field of polymer composite materials. The material comprises 50%-60% of a nylon matrix material, 30%-40% of glass fibers, 0.3%-0.6% of an antioxidant composition, 0.3%-0.5% of an ultraviolet light absorber, 0.2%-0.4% of a light stabilizer, 0.1%-0.2% of an anti-hydrolysis agent, 0.1%-0.3% of a lubricant and 5%-10% of a flexibilizer. The preparation process comprises the steps of drying of the nylon matrix and the glass fibers, high-speed mixing, twin-screw extrusion, cooling and pelletizing and injection molding, and the tensile strength, the impact strength and the aging resistance of the prepared nylon material are remarkably improved by optimizing the proportion and process parameters. The material is suitable for high-performance application of automobile structural parts, exterior trimming parts and the like, overcomes the defects of the traditional nylon in the aspects of weather resistance, mechanical strength and processability, and provides a high-performance and long-life material choice for the automobile industry.
Owner:JURONG BASTEP COMPOSITE MATERIALS

Ultraviolet-resistant ETFE film for photovoltaic module and preparation method of ultraviolet-resistant ETFE film

The invention provides an ultraviolet-resistant ETFE film for a photovoltaic module and a preparation method thereof, and the ETFE film comprises the following components based on the total weight of 100 parts: an ethylene-tetrafluoroethylene copolymer used as a base material; 0.5 to 1.5 parts by weight of a stabilizing auxiliary agent; the weight part of the antioxidant is 0.5 to 1.5 parts; and 0.4 to 1.6 parts by weight of an anti-ultraviolet agent. The weather resistance, the ultraviolet aging resistance and the light transmittance of the ultraviolet-resistant ETFE film for the photovoltaic module are remarkably improved by selecting an ethylene-tetrafluoroethylene copolymer (ETFE) as a base material, and meanwhile, the weather resistance, the ultraviolet aging resistance and the light transmittance of the ultraviolet-resistant ETFE film for the photovoltaic module are remarkably improved by adding a series of efficient anti-aging and anti-ultraviolet agents such as 2, 2 '-methylenebis6-(2H-benzotriazole-2-yl)-4-(1, 1, 3, 3-tetramethylbutyl) phenol and C27H27N302. Therefore, the ultraviolet blocking rate of the film is obviously improved, and the service life of a photovoltaic module is effectively prolonged.
Owner:ANHUI YIXING NEW MATERIAL TECH CO LTD

Modified polyester fiber and preparation method thereof

The invention relates to the technical field of polyester fibers, in particular to a modified polyester fiber and a preparation method thereof.The modified polyester fiber is prepared from, by weight, 92-95% of modified copolyester and 5-8% of modified graphene. The modified polyester fiber disclosed by the invention has the advantages of good compatibility of all components, good antistatic and antibacterial effects, and better tensile property, moisture-resistant stability and aging resistance at the same time.
Owner:JIANGSU HENGKE ADVANCED MATERIALS CO LTD

Organic-inorganic hybrid cross-linked polyurea coating, preparation method and application of organic-inorganic hybrid cross-linked polyurea coating in scratch resistance and oil stain resistance

The invention discloses an organic-inorganic hybrid cross-linked polyurea coating, a preparation method and application of the organic-inorganic hybrid cross-linked polyurea coating to scratch resistance and oil stain resistance. The polyurea coating is obtained by crosslinking an isocyanate-containing component, an amino-containing compound and an inorganic nanoparticle. The polyurea coating generated by the reaction of the isocyanate group and the amino group has better oil stain resistance, acid and alkali resistance, ultraviolet radiation resistance and excellent adhesiveness on the surface of the membrane, and is not resistant to fingernail scratch due to lower hardness. The inorganic nanoparticles have the characteristics of small particle size, high hardness and the like, and the fingernail scratch resistance of the polyurea coating can be further enhanced after the inorganic nanoparticles are added. The organic-inorganic hybrid cross-linked polyurea coating prepared by the preparation method disclosed by the invention has excellent scratch resistance, oil stain resistance, ultraviolet radiation resistance and high temperature resistance.
Owner:HANGZHOU HIWETECH CHEM TECH CO LTD

A composite stabilizer for PVC and its preparation method and application

ActiveCN118344651BReduce thermal degradationavoid degradationOrganic acidPentaerythritol
The present invention provides a composite stabilizer for PVC, characterized in that it comprises the following components by mass fraction: 35-50% of modified titanium dioxide, 15-25% of organic acid salt intercalated zinc-aluminum-lanthanum hydrotalcite, and 25-40% of tetrakis(3-mercaptopropionic acid) pentaerythritol ester. The modified titanium dioxide is TiO2 / CQDs; the organic acid salt intercalated zinc-aluminum-lanthanum hydrotalcite is itaconate-ZnAlLa-LDHs. The composite stabilizer is used in PVC products to improve the stability, mechanical properties and flame retardancy of the PVC products.
Owner:SHANDONG HUIKE ADDITIVES SHARE CO LTD

PC / ABS composite material and preparation method thereof

The invention discloses a PC / ABS composite material and a preparation method thereof, and relates to the technical field of high polymer materials. The PC / ABS composite material is prepared from the following raw materials in parts by weight: 60 to 70 parts of PC, 30 to 40 parts of ABS, 3 to 6 parts of a toughening agent, 2 to 3 parts of a modified anti-ultraviolet agent, 2 to 4 parts of a flame retardant and 0.5 to 1 part of an antioxidant. A brown polymer is prepared from urotropin and p-aminophenol, then the brown polymer, glycidyl methacrylate and styrene are subjected to graft copolymerization to prepare a novel graft polymer, and finally the graft polymer and 6-(1, 3-dihydro-2H-benzo [d] [1, 2, 4] triazole-1-yl)-1, 2, 4-triazole-1-yl)-1, 2, 4-triazole-1-yl)-1, 2, 4-triazole-1-yl)-1, 2, 4-triazole-1-yl)- 3] triazole-2-yl)-7-hydroxynaphthalene-2-sodium sulfonate is subjected to a reaction to prepare the modified anti-ultraviolet agent. The PC / ABS composite material prepared by the invention has excellent mechanical properties and ultraviolet aging resistance.
Owner:YANTAI VOCATIONAL COLLEGE

Three-dimensional turf reinforced mesh pad

The utility model relates to a three-dimensional turf reinforced mesh pad, which belongs to the field of geotextile materials for filling slope protection and greening, and is of a fabric structure consisting of warp yarns and weft yarns, the warp yarns and the weft yarns adopt polypropylene round yarns or flat yarns, and the warp yarns and the weft yarns jointly act to respectively form convex-concave parts and warp and weft yarn long floating thread parts on the surface of the fabric. The two connecting rods are arranged at intervals or in a delta shape; the weave structure of the convex-concave part is a honeycomb weave or a variable honeycomb weave, and the weave structure of the warp and weft long floating thread part is a variable rip weave; the slope surface has the advantages of being high in strength, good in extensibility and high in ultraviolet aging resistance, can be better combined with plant turf, improves the erosion resistance of the slope surface, improves the engineering quality and prolongs the service life.
Owner:HOCK TECH CO LTD

Polyurethane concrete and preparation method thereof

The invention relates to the field of building materials, and in particular to a polyurethane concrete and a preparation method thereof. The polyurethane concrete comprises the following components in parts by weight: 90-190 parts of a single-component polyurethane glue; 1-4 parts of a curing agent; 900-1150 parts of an aggregate; and 0.5-12 parts of a catalyst. The single-component polyurethane glue is prepared by diluting a prepolymer of a polyester polyol and an isocyanate with an active monomer, and the NCO content of the single-component polyurethane glue is 0.1-5wt %. The polyester polyol has a functionality of 2 and an average molecular weight of 1000-3000 g / mol, and is prepared by polymerizing a diol, a dibasic acid and a functional monomer, wherein the functional monomer comprises bisphenol A and liquid rubber, so that the concrete is resistant to high temperature, corrosion and aging, has a small shrinkage during construction and can be cured quickly, so as to solve the problem that the existing concrete does not have the aforementioned effects.
Owner:徐斌

Anti-icing coating for wind power generation blade as well as preparation method and application of anti-icing coating

The invention relates to the technical field of coatings, in particular to an anti-icing coating for a wind power generation blade and a preparation method and application of the anti-icing coating. The component A comprises 42 to 45 wt% of organosilicon modified fluorocarbon resin, 0.8 to 1.0 wt% of a wetting dispersant, 15 to 20 wt% of titanium dioxide, 5 to 8 wt% of super-hydrophobic silica particles, 0.3 to 0.5 wt% of a rheological additive, 0.8 to 1 wt% of a leveling agent, 0.1 to 0.2 wt% of an antifoaming agent, 1 to 1.2 wt% of an ultraviolet light absorber, 0.8 to 1 wt% of a light stabilizer and the balance of an organic solvent I; the component B comprises 65-70 wt% of an aliphatic isocyanate curing agent and the balance of an organic solvent II, and the anti-icing coating disclosed by the invention has waterproof self-cleaning performance and anti-icing performance.
Owner:HUNAN YADA FENGHUI NEW MATERIAL CO LTD

Impact-resistant foamed polyester material and preparation method thereof

The invention discloses an impact-resistant foamed polyester material and a preparation method thereof, and relates to the technical field of polyester materials. The preparation method of the impact-resistant foamed polyester material comprises the following steps: firstly, mixing polyether polyol, 3-hydroxycyclopentanone and an isocyanate tripolymer to react to obtain high-strength polyurethane; then mixing and reacting the hexa (4-aminophenoxy) cyclotriphosphazene, terephthalic acid and ethylene glycol to obtain flame-retardant PET (Polyethylene Terephthalate); the impact-resistant foamed polyester material is prepared by mixing and reacting TPEE, high-strength polyurethane and flame-retardant PET and then foaming, and the impact-resistant foamed polyester material prepared by the preparation method disclosed by the invention is relatively good in impact resistance, flame retardance and ultraviolet aging resistance and relatively high in strength.
Owner:JIANGSU HESHILI NEW MATERIAL +1

Novel high Abbe number 1.56 acrylic lens

PendingCN119529197Agood optical performanceImproving the problem of brittle quality and easy agingOptical elementsEpoxyPolymer science
The invention relates to a novel high Abbe number 1.56 acrylic lens, which is characterized in that monomers for synthesizing a lens material contain modified methyl methacrylate, an acrylate monomer with hydroxyl, a polymethacrylate monomer and high refractive index epoxy resin, the modified methyl methacrylate is obtained by polyaddition reaction of methyl methacrylate, methacrylic acid and allyl methacrylate, and the mass ratio of methyl methacrylate, methacrylic acid and allyl methacrylate is (15-20): (3-5): (5-10). The abbe number, the hardness, the visible light transmittance, the impact resistance, the thermal stability, the ultraviolet aging resistance, the curvature stability and other properties of the lens are effectively improved.
Owner:JIANGSU SHIKE NEW MATERIAL CO LTD

Anti-ultraviolet aging modified asphalt waterproof coating and preparation method thereof

The invention relates to the technical field of building materials. The invention discloses an anti-ultraviolet aging modified asphalt waterproof coating and a preparation method thereof. The waterproof coating is prepared from the following raw materials: matrix asphalt, a modifier, an ultraviolet light absorber, filler, a solvent, a plasticizer, a dispersing agent, 3-mercaptopropyl silica gel and nano silicon dioxide intercalated hydrotalcite. The preparation method comprises the following steps: S1, heating matrix asphalt, adding a modifier, and carrying out shear mixing to prepare a premix; s2, adding an ultraviolet light absorber and a filler into the premix, stirring and mixing, adding a solvent, a plasticizer and a dispersant, and stirring and mixing to obtain a mixture; s3, adding 3-mercaptopropyl silica gel and nano silicon dioxide intercalated hydrotalcite into the mixture, stirring and mixing, cooling to room temperature, and sealing and packaging to obtain the ultraviolet aging resistant modified asphalt waterproof coating. The waterproof coating prepared by the invention is excellent in ultraviolet aging resistance.
Owner:WUHAN SILITE HIGHWAY MATERIALS CO LTD

High and cold mining area water blocking layer reconstruction structure and method

The invention discloses a high and cold mining area water blocking layer reconstruction structure and method. The water blocking layer reconstruction structure sequentially comprises improved soil, modified polyurethane and improved soil from bottom to top; wherein the improved soil is formed by mixing coal gangue, loess and bentonite in proportion; the modified polyurethane is obtained by dissolving an ultraviolet light absorber UV24 in a small amount of butanone, mixing with polyurethane, dissolving in water, and adjusting the pH value to 4-6. By reconstructing the water blocking layer, the effect of a previous frozen soil layer is achieved, water infiltration is effectively prevented, and water and soil loss of a mine is reduced. The ecological restoration of the mining area can be promoted, and the resource utilization of the coal gangue can be realized. The waterproof layer is reasonable in reconstruction structure, and the material is durable and practical. Through the structure of'improved soil + polyurethane + improved soil ', water infiltration is prevented to the greatest extent, and due to the added bentonite and ultraviolet light absorber, the freeze-thaw resistance, compression resistance, shear resistance and ultraviolet aging resistance of the material are enhanced, and the service life of the material is prolonged.
Owner:BEIJING FORESTRY UNIVERSITY

Anti-aging composite insulator and preparation method thereof

The invention relates to the technical field of insulation, in particular to an anti-aging composite insulator and a preparation method thereof.The anti-aging composite insulator comprises an aluminum oxide ceramic green body and a composite coating; the composite coating is prepared from the following raw materials in parts by weight: 60 to 80 parts of hydroxyl-terminated polydimethylsiloxane, 5 to 10 parts of amino modified polymethylhydrosiloxane, 1 to 3 parts of an epoxy silane coupling agent, 5 to 10 parts of LaFeO3 / TiO2 heterojunction nanoflowers, 0.01 to 0.1 part of dibutyltin dilaurate and 40 to 60 parts of a diluent, the composite insulator prepared by the invention has excellent ultraviolet aging resistance and stain resistance, and can be widely applied to power transmission lines of power systems in China.
Owner:LILING DONGFANG ELECTROCERAMIC CO LTD

Coating with low solar radiation absorptivity and coating method

The invention relates to a coating with low solar radiation absorptivity and a coating method. The coating comprises the following components in percentage by weight: 18-22 wt% of a reflective thermal insulation material, 5-7 wt% of an infrared emission material, 13-15 wt% of a modified inorganic pigment, 4-6 wt% of an organic binder, 4-6 wt% of a thermal insulation aid, 1-3 wt% of a dispersing aid and the balance of a solvent, the reflective thermal insulation material is prepared from TiO2, BaSO4, ZnO and Eu2O according to the mass ratio of 1 to (0.8 to 1.0) to (0.5 to 0.7) to (0.3 to 0.5). The heat insulation protection effect of the heat insulation coating on the charging column can be improved.
Owner:HENAN LONGXIANG ELECTRICAL CO LTD

Transparent yellowing-resistant UV adhesive and preparation method thereof

The invention discloses a transparent anti-yellowing UV adhesive and a preparation method thereof, and belongs to the technical field of adhesives. The transparent anti-yellowing UV adhesive disclosed by the invention is prepared from the following raw material components in parts by weight: 20 to 40 parts by mass of epoxy resin base material, 5 to 15 parts by mass of modified polytitanium siloxane, 1.5 to 2.5 parts by mass of photoinitiator, 10 to 20 parts by mass of oxetane and 7 to 9 parts by mass of vinyl ether, the epoxy resin base material is prepared from any one or a combination of at least two of bisphenol A type epoxy resin YL980, hydrogenated bisphenol A type epoxy resin YX-8000D, alicyclic epoxy resin celloxide 2021P, alicyclic epoxy resin Epolead GT401 and alicyclic epoxy resin S-28; the modified titanium polysiloxane is obtained by carrying out condensation polymerization on gamma-glycidyl ether oxypropyl methyl diethoxy silane, gamma-methacryloyloxy propyl trimethoxy silane, vinyl methyl diethoxy silane and tetrabutyl titanate. The preparation method comprises the following steps: carrying out condensation polymerization on gamma-glycidyl ether oxypropyl methyl diethoxy silane, gamma-methacryloyloxy propyl trimethoxy silane, vinyl methyl diethoxy silane and tetrabutyl titanate to obtain the modified titanium polysiloxane.
Owner:SUNGOO NEW MATERIALS (SUZHOU) CO LTD

Corrosion-resistant matte PE high polymer material and application thereof in wind power and photovoltaic power generation

The invention discloses an anti-corrosion matte PE high polymer material and application thereof in wind power and photovoltaic power generation, and belongs to the technical field of PE high polymer materials, the anti-corrosion matte PE high polymer material comprises the following components by weight: 100 parts of a polyethylene resin matrix; 0.5-3 parts of a composite anti-aging system; 5-30 parts of a multifunctional synergistic matting anti-corrosion filler; 0.1 to 1.5 parts of a rare earth complex weather-resistant synergist; 0.5-2 parts of a processing aid; the polyethylene resin matrix is high-density polyethylene, linear low-density polyethylene or a blend of the high-density polyethylene and the linear low-density polyethylene, and the melt flow rate of the polyethylene resin matrix is 0.5-5g / 10min under the condition of 190 DEG C / 2.16 kg. The surface double-modified layered silicate and the basic zinc phosphate are compounded to serve as the multifunctional synergistic matting corrosion-resistant filler, the material is endowed with excellent corrosion resistance, the good matting effect and weather resistance are achieved, meanwhile, the special structure of the filler can effectively inhibit corrosion medium permeation, and the corrosion resistance of the material is improved. And the service life of the material in a severe environment is prolonged.
Owner:HENAN ANDA NEW MATERIAL TECH CO LTD

A method for preparing an additive for high transparent polyethylene film

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.
Owner:JIANGSU HANGUANG IND CO LTD

A high-temperature resistant honeycomb core material paper, its preparation method and application

This invention discloses a high-temperature resistant honeycomb core paper, its preparation method, and its application. The paper has a three-layer composite structure, including two outer layers and an intermediate layer. The two outer layers are identical in composition, consisting of high-temperature resistant chopped fibers and high-temperature resistant resin. The intermediate layer, located between the two outer layers, comprises high-temperature resistant micro / nano fibers, high-temperature resistant pulp fibers, high-temperature resistant chopped fibers, and high-temperature resistant resin. The high-temperature resistant micro / nano fibers are fibrillated PBO fibers. The high-temperature resistant pulp fibers are PBO pulp fibers. The mass ratio of the high-temperature resistant micro / nano fibers, high-temperature resistant pulp fibers, and high-temperature resistant chopped fibers is 3–15:15–35:50–75. Through material structure design, this invention effectively improves the paper's high-temperature resistance (>250℃) and UV aging resistance.
Owner:ZHUZHOU TIMES FIBER PIONEER MATERIAL TECH CO LTD

A uv-enhanced polyvinyl butyral modified asphalt and a method of making the same

The present application provides a kind of UV reinforced polyvinyl butyral modified asphalt and its preparation method.The modified asphalt is based on matrix asphalt, polyvinyl butyral, photoinitiator and crosslinking aid are added, and the uniform dispersion and crosslinking reaction of polyvinyl butyral in asphalt system are promoted by UV light, so as to improve the ultraviolet aging resistance, bonding strength and weather resistance of asphalt.The preparation steps include: heating the matrix asphalt to 140-190℃, adding polyvinyl butyral shear stirring, then adding photoinitiator and crosslinking aid, and continuing to stir under UV light to form a uniform modified asphalt system.The method can significantly improve the aging resistance, high temperature stability and low temperature crack resistance of modified asphalt, and is suitable for road paving, bridge waterproofing and other high durability engineering fields, and has good industrial application prospect.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Anti-ultraviolet aging PC / ABS composite material and preparation method thereof

The invention provides an anti-ultraviolet aging PC / ABS composite material and a preparation method thereof, and belongs to the technical field of high polymer materials. The PC / ABS composite material is prepared from the following raw materials in parts by weight: 5-10 parts of a modifier and 150-200 parts of PC / ABS plastic, the modifier is a composite metal oxide subjected to UV326 / UV531 intercalation, after the surface of the composite metal oxide is modified by polydopamine, the modified composite metal oxide reacts with phytic acid and tris (2-chloroethyl) phosphate, and TiO2 is deposited in situ to prepare the modifier. The composite material prepared by adding the modifier prepared by the invention into PC / ABS plastic has better ultraviolet aging resistance, the mechanical property and thermal stability of the material are enhanced, the antibacterial property and flame retardance are improved, and the composite material has wide application prospects.
Owner:HUNAN ZHONGYIXIN TECH CO LTD

An impact-resistant polyether sulfone composite material and a preparation method thereof

This invention discloses an impact-resistant polyethersulfone composite material and its preparation method. A modified polymer and a modified filler are melt-blended, and a pretreated film is prepared using a blown film process. The pretreated film and a modified nonwoven fabric are then laminated and hot-pressed to obtain the impact-resistant polyethersulfone composite material. The modified polyethersulfone is formed by the stepwise polymerization of 4,4'-difluoro-diphenyl sulfone and a dihydroxy monomer, and then hindered amine structures are grafted onto the molecular side to obtain the modified polymer. The hindered amine structures can capture free radicals, improving the material's anti-aging properties, while the disulfide bond structure can absorb energy when the material is impacted, enhancing its impact resistance. A modified filler is prepared by coating a composite filler formed from TiO2 and CeO2 with silica, which can efficiently absorb and convert ultraviolet light, improving the material's anti-aging properties. Simultaneously, the interlayer nonwoven fabric structure effectively prevents cracks from directly penetrating to adjacent layers, enhancing the material's impact resistance.
Owner:JIANGXI DESHENG FINE CHEM CO LTD

Modularized assembly corrosion-resistant injection molding shell

The utility model discloses a modularly-assembled corrosion-resistant injection-molded shell which comprises an injection-molded shell main body, an assembling module mechanism is arranged in the injection-molded shell main body, an injection-molded cover plate is arranged on the upper surface of the injection-molded shell main body, and symmetrical positioning plates are installed on the outer surface of the injection-molded shell main body. Symmetrical adaptive mounting holes are formed in the upper surfaces of the two positioning plates correspondingly, a locking mechanism is arranged on the outer surface of the injection molding shell body, the injection molding shell body comprises two first positioning frames, and two sets of second positioning frames are installed in the injection molding shell body. And sealing gaskets are arranged in the two first positioning frames and the two groups of second positioning frames. According to the device, through cooperation of the assembly plate and the positioning frame, modular assembly can be conveniently conducted on the interior of the injection molding shell body, the applicability of the injection molding shell body is improved, the acid and alkali resistance of the surface of the injection molding shell body can be improved through the nanometer titanium dioxide coating, and the oleophobicity of the surface of the injection molding shell body is improved.
Owner:QINGDAO GUORUN MOULD TECH CO LTD

Ultra-high molecular weight polyethylene functional color printing composite packaging film

PendingCN122255545ASolve the problem of peeling failureSurface polarity stableInksCoatingsQuinonePolymer science
This invention relates to the field of polymer molding materials. A functional color-printed composite packaging film of ultra-high molecular weight polyethylene is disclosed, which is formed by curing a polyethylene film substrate, p-hydroxybenzoic acid, polyethylene glycol diacrylate, laccase, and acrylate ink monomers. The film is formed by covalently coupling quinone radicals generated from p-hydroxybenzoic acid and polyethylene glycol diacrylate under laccase catalysis to the substrate surface, forming a polyethylene glycol grafted interlayer. Subsequently, ultraviolet light-initiated polymerization is performed on the surface of the interlayer to form a cross-linked and cured ink layer. This method utilizes the covalently bonded grafted interlayer to block the rearrangement of non-polar molecular chains of the substrate to the surface, maintaining surface polarity stability, and enabling the ink layer and substrate to possess the highest standard peel strength, with no blistering or peeling of the ink layer under boiling water conditions.
Owner:GUANGDONG DANQING PRINTING CO LTD

Preparation method of modified acrylate optical material with high abbe number

PendingCN119529198Agood optical performanceImproving the problem of brittle quality and easy agingOptical elementsEpoxyRefractive index
The invention relates to a preparation method of a high-abbe-number modified acrylate optical material, which is characterized in that monomers for synthesizing the optical material contain modified methyl methacrylate, an acrylate monomer with hydroxyl, a polymethacrylate monomer and high-refractive-index epoxy resin, the modified methyl methacrylate is obtained by polyaddition reaction of methyl methacrylate, methacrylic acid and allyl methacrylate, and the mass ratio of methyl methacrylate, methacrylic acid and allyl methacrylate is (15-20): (3-5): (5-10). The abbe number, the hardness, the visible light transmittance, the impact resistance, the thermal stability, the ultraviolet aging resistance, the curvature stability and other properties of the optical material prepared by the method are effectively improved. The preparation method is simple in procedure, safe and controllable, no waste is discharged in the preparation process, and the green and environment-friendly industrial production requirement can be met.
Owner:JIANGSU SHIKE NEW MATERIAL CO LTD

Preparation method of aluminum alloy profile with antifouling wear-resistant coating

The invention discloses a preparation method of an aluminum alloy profile with an anti-fouling and wear-resistant coating, belongs to the technical field of anti-fouling and wear-resistant profiles, and aims to solve the technical problem that the wear resistance, the anti-fouling performance and the ultraviolet resistance of the anti-fouling and wear-resistant coating of the aluminum alloy profile in the prior art need to be further improved. The method comprises the following steps: carrying out surface treatment on an aluminum alloy profile to obtain a pretreated profile, namely preparing a powder coating from composite polyamide acid, modified silicon dioxide, polymethyl methacrylate and 1H, 1H, 2H, 2H-perfluorodecyl mercaptan, and sequentially carrying out electrostatic spraying, soaking modification and high-temperature treatment on a new aluminum alloy material subjected to surface treatment to obtain the aluminum alloy profile. The wear resistance and the pollution resistance of the aluminum alloy surface coating are effectively improved, and the impact resistance, the ultraviolet aging resistance and the adhesion grade of the aluminum alloy surface coating are also improved.
Owner:ZHEJIANG FEILONG PIPE