92 results about "Nano hybrid" patented technology

The invention relates to the technical field of road construction and maintenance, and discloses a multi-polymer modified emulsified asphalt in-situ cold recycling mixture and a preparation process thereof, the multi-polymer modified emulsified asphalt in-situ cold recycling mixture comprises the following components by weight: 600-680 parts of nano hybrid emulsified asphalt; 250 to 350 parts of plasma activated recycled aggregate; 15 to 30 parts of a microcapsule phase change catalyst; 5 to 10 parts of bio-based interface reinforcing fiber; and 3-8 parts of a rare earth doped curing accelerator. According to the invention, through multi-technology cross-scale fusion of a quaternary polymer rigid-flexible synergistic system, a gradient emulsification-vacuum self-assembly process, double-shell intelligent catalytic release and rare earth gradient distribution-magnetic field induced fiber arrangement, the bottlenecks of unbalanced high and low temperature performance, easy interface stripping, poor aging resistance, extensive process regulation and control and the like of a traditional asphalt material are overcome; and the strength and toughness-durability-self-adaption performance synergistic jump is realized.

The invention discloses a cycloolefin copolymer / carbon nanotube hybrid material modified oil-water separation sponge, relates to the field of high polymer materials, and provides a novel cycloolefin block copolymer which can be obtained by ring-opening metathesis polymerization of cycloolefin and 5-norbornene-2-carboxylic acid methyl ester under the catalysis of a third-generation Grubbs catalyst. The method is simple in process, and the length of the 5-norbornene-2-carboxylic acid methyl ester block can be accurately regulated, so that the nano shish-kebab structure and the surface performance of the nano shish-kebab structure can be regulated. The process for preparing the nano-hybrid shish-kebab from the cycloolefin block copolymer and the carbon nanotubes is simple in technology, the surface of a rough surface material such as polyurethane sponge can be uniformly covered with the nano-hybrid shish-kebab to form a thin film, super-hydrophobicity can be achieved, and meanwhile the nano-hybrid shish-kebab has oleophylic performance; and the oil-water separator has high separation efficiency and good wear resistance in the oil-water separation process.

The invention belongs to the technical field of down jacket fabrics, and particularly relates to a waterproof and oilproof down jacket fabric and a preparation method thereof. The waterproof and oil-proof down jacket fabric is prepared by soaking a down jacket fabric in a finishing liquid, rolling and shaping, the finishing liquid is prepared from an acrylic acid waterproof agent, an organic silicon waterproof agent and a cross-linking agent in a mass ratio of (0.5-1): (2-4): (0.1-0.2); the organic silicon waterproof agent at least comprises a nano hybrid material; the nano hybrid material is nano silicon dioxide which is modified by dodecyl succinic anhydride, amino-terminated silicon oil and aminated fur fiber in sequence. According to the waterproof and oil-proof down jacket fabric provided by the invention, the self-made organic silicon waterproof agent, the acrylic acid waterproof agent and the cross-linking agent are added into the finishing liquid and act together, so that the down jacket fabric has excellent waterproof and oil-proof properties.

The invention relates to the technical field of composite coating preparation materials for battery diaphragms, in particular to a composite coating for a battery diaphragm as well as a preparation method and application. The invention discloses a graphene quantum dot / carbon nanotube composite material, which is prepared from the following components in percentage by weight: 3 to 8 percent of aminated graphene oxide-polydopamine graft, 10 to 18 percent of polyimide-polyetheretherketone-nano SiO2 hybrid, 2 to 5 percent of hydroxyapatite-montmorillonite core-shell particles, 0.5 to 3 percent of zinc borate-melamine cyanurate compound, 1 to 3 percent of graphene quantum dot-carbon nanotube hybrid, 2 to 6 percent of sodium carboxymethyl cellulose and 50 to 70 percent of deionized water. 0.5 to 2 percent of barium strontium titanate nanocrystalline or 1 to 3 percent of polyethylene glycol-polypropylene glycol segmented copolymer can also be added. All the components are combined through molecular-level reaction to construct a high-performance protection network. The composite coating is good in high temperature resistance and mechanical strength, high in ionic conduction efficiency, excellent in flame retardant effect and good in interfacial compatibility, the preparation process is environmentally friendly and easy to industrialize, the composite coating is suitable for various batteries, and the comprehensive performance of the composite coating is superior to that of a traditional coating.

The invention discloses a coating technology of a self-cleaning glass coating, which adopts a water-based paint containing nano TiO2 / SiO2 hybrid sol (core-shell structure), a polyurethane modified silane coupling agent and a flatting agent, and forms a 150-300nm super-hydrophilic coating (the contact angle is less than or equal to 5 degrees) on the surface of glass through a synergistic process of gradient curing (three-stage heating at 80-150 DEG C) and ultraviolet radiation (a main wave band of 365nm and an auxiliary wave band of 280-320nm). The technology breaks through the bottleneck that low-temperature curing and high adhesive force are difficult to be compatible, and the contact angle of the coating is still lt after damp-heat aging; 10 degrees, the light transmittance loss lt; and 3%, the photovoltaic module is suitable for building curtain walls, automobile windshields and photovoltaic modules. The method comprises the following steps: (1) bonding a polyurethane chain segment with a mechanical interlocking enhanced interface through a hydrogen bond; (2) the SiO2 shell layer improves the TiO2 quantum efficiency; and (3) equipment zoned humidity control and inert atmosphere oxidation inhibition are realized, and unification of self-cleaning performance, optical performance and mechanical durability is realized by an environment-friendly process.

The application belongs to the technical field of traditional Chinese medicine volatile component separation, and specifically discloses a nano hybrid membrane for separating volatile vapor state components and a preparation method thereof. Firstly, alkyl modification is performed on graphene oxide, and the modified material is used as a filler to prepare a nano hybrid membrane. The introduction of alkyl chains increases the compatibility of the filler and PDMS, and reduces the phenomenon of interface gap on the contact surface of the filler and the polymer. Then, the alkylated graphene oxide is embedded in the polymer membrane. By changing the alkylization degree of the graphene oxide and the addition amount of the filler, the polymer chain packing state and the free volume in the membrane are regulated, so that the selectivity of the membrane material for traditional Chinese medicine volatile components is increased, the prepared nano hybrid membrane is more suitable for separating traditional Chinese medicine volatile components, and the addition of the nano filler in the application can enhance the mechanical strength of the polymer membrane and inhibit the deformation degree of the membrane.

The invention discloses high-strength plastic particles as well as a preparation method and application thereof, and belongs to the technical field of high polymer material modification. The plastic particle is prepared from high-density polyethylene, hyperbranched polyesteramine containing a diurea group, a layered double metal hydroxide-polypyrrole nano hybrid, a maleic anhydride grafted ethylene-octylene copolymer, an antioxidant and calcium stearate. Wherein the hyperbranched polyesteramine containing the diurea group is prepared by reacting pentaerythritol with citric acid to generate a citrate framework and then reacting with diphenylmethane diisocyanate and 1, 4-butanediol; the layered double hydroxide-polypyrrole nano hybrid is prepared by carrying out in-situ polymerization and coating on magnesium-aluminum layered double hydroxides through a pyrrole monomer. According to the plastic particle, the tensile strength, the heat resistance and the flame retardance are remarkably improved through synergistic enhancement of the hyperbranched polyesteramine and the nano hybrid, and the plastic particle can be applied to the fields of automobile bumpers, high-voltage cable sheaths, weather-proof plates for buildings and the like.

The invention relates to the technical field of metal oxide coating electrodes, in particular to a carbon nano hybrid material loaded metal oxide coating electrode and a preparation method of the carbon nano hybrid material loaded metal oxide coating electrode. And dissolving metal ions by using the metal ions as a solvent, uniformly coating the metal ions on the surface of titanium or titanium alloy subjected to certain surface treatment, and carrying out heat treatment to obtain a target electrode. The preparation method is simple in process and convenient to operate, the prepared electrode can effectively prevent a corrosion medium from permeating into the coating due to the existence of the nano hybrid material, the service life of the electrode is greatly prolonged, and the electrocatalytic activity of the electrode can be improved by optimizing electron transmission.

The invention belongs to the technical field of metal-based composite materials and powder metallurgy, and particularly relates to a micro-nano hybrid ceramic particle and graphene reinforced aluminum-based composite material and a preparation method thereof.The micro-nano hybrid ceramic particle and graphene reinforced aluminum-based composite material comprises an aluminum alloy matrix and a reinforced phase evenly dispersed and distributed in the aluminum alloy matrix; the aluminum alloy matrix is an Al-Cu-Mg-Si alloy, and the reinforcing phase comprises micron-scale ceramic particles, nano-scale ceramic particles and graphene. The prepared micro-nano hybrid ceramic particle and graphene reinforced aluminum matrix composite comprises an aluminum alloy matrix, and micron-scale ceramic particles, nano-scale ceramic particles and graphene which are uniformly dispersed and distributed in the aluminum alloy matrix, the micro-nano hybrid ceramic particle and graphene reinforced aluminum-based composite material has the advantages of high strength, high rigidity, good plasticity, low density and the like.

The invention discloses an anticorrosive coating composition based on a nano hybrid and a preparation method of the anticorrosive coating composition, and relates to the technical field of powder coatings. Comprising the following components in parts by weight: 60-70 parts of fluorosilicone modified epoxy resin, 8-10 parts of an aminoethylated acrylic polymer, 4-8 parts of a functionalized nano hybrid, 4-6 parts of a curing agent, 0.3-1.2 parts of an accelerant, 1-2 parts of benzoin, 2-4 parts of a functional aid, 10-15 parts of a micron-sized filler and 1-2 parts of a coupling agent. The curing agent is prepared by compounding dicyandiamide, bicyclo [2.2. 1] heptane dimethylamine and 3, 5-diamino-1, 2, 4-triazole according to a mass ratio of (3 to 5): 1: (0.8 to 1.2). The coating composition is high in adhesive force and excellent in impact resistance and corrosion resistance.

The invention provides a nitrogen-containing boric acid ester-nano hybrid composite anti-wear additive as well as a preparation method and application thereof, and belongs to the technical field of lubricating oil additives. The nitrogen-containing boric acid ester, the functionalized nanoparticles, the ionic liquid, the auxiliary anti-wear agent and the dispersion stabilizer are subjected to nano-scale hybrid compounding, and the nitrogen-containing boric acid ester, the functionalized nanoparticles, the ionic liquid, the auxiliary anti-wear agent and the dispersion stabilizer have a synergistic effect on four aspects of physical bearing, chemical adsorption, interface modification and extreme pressure enhancement; a multi-synergistic lubrication and protection system of an adsorption film, a physical isolation layer, an extreme pressure reaction layer and rolling lubrication microspheres is constructed, efficient wear resistance, friction reduction, bearing and stability improvement are jointly achieved, and the lubricating oil is suitable for insoluble base oil.

The invention belongs to the technical field of civil engineering materials, and particularly relates to sprayed concrete suitable for a chlorine salt erosion environment and a preparation method of the sprayed concrete. And meanwhile, the bionic helical carbon nanotube-polymer composite gel is pre-dispersed in water. Sequentially adding the aggregate, the fiber and the composite cementing material, carrying out dry mixing, adding the gel dispersion liquid, the water reducing agent and the air entraining agent, and stirring to obtain a mixture; and finally, adding an alkali-free liquid accelerator at a nozzle through a wet spraying process, and spraying the alkali-free liquid accelerator to a construction surface. The nano hybrid material can effectively adsorb and lock chloride ions, and the bionic gel has a crack self-repairing function. And the two components have a synergistic effect, and are combined with a compact microstructure and a fiber reinforcing and toughening effect, so that the obtained concrete has extremely high chloride ion penetration resistance and durability, and is particularly suitable for support and protection engineering in chlorine salt environments such as temporary expressways and the like.

The invention discloses high-durability quick-hardening concrete and a preparation method thereof, and belongs to the technical field of building materials. The concrete is prepared from the following raw materials: aluminoferrite cement, vitreous calcium aluminate clinker, a coagulant nucleation agent, a nano hybrid siliceous material, a calcium-magnesium composite expanding agent, a self-healing agent, a hydration heat regulating agent, a water reducing agent, an early strength agent, a defoaming agent, a thickening agent, a retarder, an air entraining agent and aggregate. The coagulating nucleating agent is prepared from semi-hydrated gypsum, ferrous sulfate and aluminum potassium sulfate; the nano hybrid siliceous material is prepared by reacting acidic silica sol with sodium methyl silicate at 40-60 DEG C for 1-3 hours. According to the high-durability quick-hardening concrete and the preparation method thereof, the iron aluminate cement, the vitreous calcium aluminate clinker, the coagulant nucleation agent, the nano hybrid siliceous material, the calcium-magnesium composite expanding agent, the self-healing agent and the hydration heat regulating agent are utilized to form a brand-new high-durability and high-adaptability quick-hardening system. The mechanical property, the volume stability and the durability are comprehensively superior to those of the traditional quick-hardening concrete.

Disclosed are a superhydrophobic coating with abrasion resistance and a preparation method thereof. The coating has a composite structure formed by a nanohybrid composed of nano-SiO2 and multi-wallet carbon nanotubes, and a resin as a matrix.

The invention belongs to the technical field of gas adsorbents, and particularly discloses a high-strength nano-hybrid soluble bridge plug as well as a preparation method and application thereof. The bridge plug body comprises a hollow metal tube, and a plurality of annular grooves are formed in the outer surface of the hollow metal tube around the axis of the hollow metal tube; the carbon nitride film middle layer is located on the outer surface of the bridge plug body; the outermost layer of the polybenzimidazole / nano silicon oxide composite film is positioned on the outer surface of the middle layer of the carbon nitride film; the hollow metal tube is made of zinc-based alloy and comprises, by mass, 5%-7% of titanium, 2%-4% of magnesium, 0.5%-2% of bismuth and the balance zinc. The bridge plug disclosed by the invention is high in plugging strength, controllable in dissolution time and suitable for a high-temperature and high-salt or acid environment, the particle size of residues after dissolution is small, the harsh requirements of ultra-deep well fracturing can be met, and the bridge plug is prepared by adopting a one-step forming process, so that the production cost is remarkably reduced.

The invention belongs to the technical field of building materials, and particularly relates to a waterborne epoxy resin-sulphoaluminate cement composite repairing material and a preparation method thereof. The water-borne epoxy resin-sulphoaluminate cement composite repairing material disclosed by the invention is prepared from the following components in parts by weight: 10 to 20 parts of water-borne epoxy resin, 40 to 60 parts of sulphoaluminate cement, 0.5 to 1 part of nano modified lignosulfonate, 0.2 to 0.6 part of nano hybrid polyvinyl alcohol, 0.1 to 0.5 part of a retarder, 0.05 to 0.3 part of an early strength agent and 12 to 25 parts of water. The water-borne epoxy resin-sulphoaluminate cement composite repairing material is suitable for hydraulic buildings with high requirements on repairing quality and durability, such as cross-sea bridges, seaport wharfs, hydropower stations and the like.

The invention belongs to the field of deep processing of grease, and particularly relates to a lipase immobilization method based on a bimetallic nanoparticle and chitosan composite material. The prepared nano hybrid material is large in specific surface area, high in surface activity, easy to modify and capable of providing more binding sites for enzyme and improving the immobilization efficiency and catalytic performance. According to the preparation method provided by the invention, the metal nanoparticles are added, so that the mechanical strength of the lipase can be enhanced, and the catalytic efficiency and the stability of the lipase can be further improved by adjusting the size, the shape and the surface modification of the nanoparticles. In addition, through compounding of the nanoparticles and the organic material, the flexibility and adjustability of the carrier material can be improved, and a nano hybrid material with mechanical properties and biological compatibility is formed. Chitosan is used as a biodegradable polysaccharide organic material, has rich amino groups and hydroxyl groups, can provide multiple active binding sites for enzyme, and can form a composite carrier material with high mechanical strength and thermal stability after being compounded with metal nanoparticles.

The invention relates to the technical field of waterproof coiled materials, in particular to an anti-aging waterproof coiled material and a preparation process thereof. The preparation process of the anti-aging waterproof coiled material comprises the following steps: preparing the composite antioxidant, preparing the composite anti-ultraviolet agent, preparing the modified chitosan flame retardant and preparing the waterproof coiled material. The preparation method comprises the following steps: pretreating halloysite nanotubes, dispersing the pretreated halloysite nanotubes in an ethanol solution, adding tetraethoxysilane, carrying out a reaction under the catalysis of dibutyltin dilaurate to obtain a nano-hybrid carrier, carrying out surface modification on the nano-hybrid carrier by using KH-560, and loading 4-aminodiphenylamine on the surface of the nano-hybrid carrier by using a bridging effect of the KH-560 to obtain the 4-aminodiphenylamine loaded nano-hybrid carrier. According to the present invention, the supported composite antioxidant is prepared, can be uniformly dispersed in the waterproof coiled material matrix after being added into the waterproof coiled material so as to improve the thermo-oxidative aging resistance of the waterproof coiled material, and can be used as the rigid skeleton after being dispersed in the waterproof coiled material matrix so as to effectively improve the tensile strength of the waterproof coiled material.

This invention relates to the field of shape memory material preparation technology, specifically to a bio-based shape memory Eucommia ulmoides gum composite material and its preparation method. All components of the composite material are of entirely bio-based origin, using natural Eucommia ulmoides gum as the matrix. Nano-hybrid seed crystals composed of cellulose nanocrystals and carbon quantum dots are introduced. The cellulose nanocrystals act as nucleating agents, guiding and accelerating the cooling crystallization of the Eucommia ulmoides gum, while the carbon quantum dots form the shell, improving heat transfer efficiency. In the preparation process, this application uses triacylglycerol lipase as a biocatalyst, which can initiate an in-situ esterification reaction between the filler and the matrix at a low temperature of 65-75℃. This not only reduces energy consumption but also avoids the thermal degradation and damage to the Eucommia ulmoides gum macromolecular chains caused by high-temperature strong shear, achieving high performance and batch-to-batch stability of the material.

The invention relates to the technical field of optical cables, and discloses a composite material for an optical cable sheath and a preparation method thereof, and the preparation method comprises the following steps: providing a temperature-resistant monomer, a functional monomer and a three-dimensional network structure; carrying out copolymerization reaction on the temperature-resistant monomer and the functional monomer to synthesize a thermoplastic dynamic covalent bond network polymer, and carrying out surface treatment on the three-dimensional network structure reinforcing material; and mixing the thermoplastic dynamic covalent bond network polymer, the surface-treated three-dimensional network structure reinforcing material, the multifunctional nano hybrid filler, the bio-based plasticizer, the antioxidant, the light stabilizer and the flame retardant according to a preset proportion, in the mixing process, the stirring speed is 1000-1500 rpm, the time is 15-20 minutes, the hot pressing temperature is 150-180 DEG C, the pressure is 10-15 MPa, and the time is 5-10 minutes, so as to obtain the composite material. The premix is obtained. According to the composite material for the optical cable sheath and the preparation method thereof, interface bonding between a reinforcing material and a matrix is firm, the composite material can be recycled and repeatedly processed, pollution is effectively reduced, the composite material is more environment-friendly, and the cost is saved.

The application relates to the technical field of ink materials, in particular to a low-viscosity double anti-forgery ink as well as a preparation method and application thereof. The ink comprises, in percentage by mass, 0.5-1.5% of an Er / Yb / N-GQDs-BCNCs nanohybrid, 0.1-1.5% of a surfactant, 2-8% of polyvinyl alcohol, 0.5-1.5% of urea, 0.01-1% of a defoaming agent, and the balance of water; wherein the Er / Yb / N-GQDs-BCNCs nanohybrid is a bacterial cellulose nanocrystal and an Er / Yb / N co-modified graphene quantum dot nanohybrid. The prepared ink has relatively low viscosity and shear thinning characteristics, so that the flowability and extensibility of the ink are enhanced, the overflow amount during printing is reduced, and the printing effect is improved; meanwhile, the ink has photoluminescence (blue light) and up-conversion luminescence (green light) characteristics, can realize double anti-forgery, and therefore has excellent comprehensive performance.

This invention discloses an organosilicon-modified acrylic resin coating, its preparation method, and its application, belonging to the field of surface protection technology. The organosilicon-modified acrylic resin coating of this invention comprises the following raw materials in parts by weight: 92-99 parts of organosilicon-modified acrylic resin and 1-8 parts of modified SiO2@FGO nano-hybrids. This invention achieves surface modification of graphene oxide using a silane coupling agent, and further obtains the coating through in-situ hydrolysis deposition and modification of SiO2 nanoparticles. The organosilicon-modified acrylic resin coating with composite nanofiller exhibits excellent resistance to chloride ion corrosion, carbonization, alkali resistance, weather resistance, and adhesion, and can be used for surface protection of marine reinforced concrete engineering projects.

The invention discloses a water-oil hybrid polyurea mortar waterproof floor coating as well as a preparation method and application thereof, and belongs to the technical field of floor coatings. The coating is composed of a component A and a component B, the component A is a hybrid isocyanate prepolymer and is prepared from 25 to 30 parts of polymerized MDI (Diphenyl Diisocyanate), 5 to 8 parts of nano SiO2 grafted isocyanate and 0.1 to 0.3 part of an oxidation catalyst; the component B is a water-oil hybrid amino compound and mortar reinforcing system, and comprises 60 to 70 parts of water-based polyaspartic acid ester, 30 to 40 parts of oil hydroxyl-terminated polybutadiene, 10 to 20 parts of silane modified quartz powder and 2 to 3 parts of Diels-Alder bond polymer. Through water-oil resin nano-hybridization, nano SiO2 grafting and dynamic reversible bond introduction, VOC is smaller than or equal to 5 g / L, the compressive strength is larger than or equal to 25 MPa, the self-repairing efficiency is larger than 90%, and the comprehensive performance of-15-50 DEG C wide-temperature construction is improved. In practical application, a one-bag film forming packaging system and an intelligent construction management system are matched, the construction efficiency and quality consistency are remarkably improved, and the method is suitable for industrial terraces, underground engineering and other high-requirement waterproof terrace scenes.

The invention relates to the technical field of high polymer material preparation, in particular to a preparation method of pourable super absorbent resin for building backfill layer accumulated water treatment. Comprising the following steps: obtaining surface aminated nano SiO2; the preparation method comprises the following steps: adding 0.05-10 parts of surface aminated nano SiO2 and 0.1-10 parts of a natural polyphenol compound into 100 parts of distilled water, and stirring; after the mixture is uniformly stirred, a Tris-HC1 buffer solution is dropwise added; after the reaction is completed, centrifugally separating and collecting a product to obtain a nano SiO2 hybrid; the preparation method comprises the following steps: adding 0.05-10 parts of a nano SiO2 hybrid into 100 parts of distilled water, carrying out ultrasonic dispersion for 0.5-2 hours, and slowly adding 10-30 parts of a vinyl monomer and 5-20 parts of sodium hydroxide; 0.01 to 0.1 part of ammonium persulfate and 0.01 to 0.1 part of sodium hydrogen sulfite are added; 0.05-2 parts of a post-crosslinking agent is added into the polymer solution, the pourable super absorbent resin is obtained, in this way, accumulated water of the backfill layer is efficiently absorbed, the backfill material is effectively solidified to form a stable waterproof barrier, and fixed-point and efficient treatment of the accumulated water of the backfill layer can be met.

The application discloses a kind of bamboo fiber reinforced recycled polypropylene composite material and preparation method thereof, it is related to polymer composite material technical field.The composite material includes recycled polypropylene, modified bamboo fiber, maleic anhydride grafting polypropylene, zinc stearate, ionic liquid modified fumed silica, anti-aging microcapsule and antioxidant.Modified bamboo fiber surface is nano hybrid modified by aminated graphene oxide, and maleic anhydride grafting polypropylene forms covalent bond network;Ionic liquid modified fumed silica and zinc stearate improve processing fluidity in cooperation;Anti-aging microcapsule includes ultraviolet absorber and light stabilizer, realizes the slow-release protection of anti-aging aid.The composite material of the application has high interface bonding strength, low water absorption, excellent aging resistance and good processing fluidity.

The invention relates to the technical field of coatings, and discloses a UV curing coating and a preparation method thereof. Comprising the following raw materials in parts by weight: 85-95 parts of a nano hybrid resin matrix, 40-50 parts of modified epoxy acrylate, 30-40 parts of fluorinated polyurethane acrylate, 5-10 parts of a nano silicon dioxide dispersion liquid, 0.5-2 parts of a chain transfer agent, 3-8 parts of a functional additive, 1-3 parts of hydroxylated carbon nanotubes, 0.5-2 parts of a fluorine-containing surfactant and 4-6 parts of a photo-initiation system. 2-4 parts of a free radical type photoinitiator and 1-2 parts of a cationic photoinitiator. Nano silicon dioxide is introduced into a resin network through chemical bonding, so that the hardness of the coating is improved to 6H, meanwhile, the internal stress is reduced to 1.2 MPa by utilizing a flexible chain segment of fluorinated polyurethane, and the contradiction between the hardness and the adhesive force of a traditional system is solved.

The application provides a special mold for preparing a large-size nanofiller hybrid film, which solves the core defects that a conventional small-size circular mold cannot prepare a large-size film and film forming is uneven through rectangular large-size structure design, uniform hole layout and fine surface treatment; and a special preparation method is matched to realize accurate control of the film resistance and to prepare a multi-resistance series product. The two work together to stably prepare a specific resistance nanohybrid film with an effective forming size of 1022 mm*50 mm and uniform thickness, effectively meet the strict use requirements of high-end fields such as aviation electromagnetic shielding, lightning protection and conductive deicing, and auxiliary realization of industrialized preparation of the large-size nanohybrid film by the vacuum filtration method.

The present application belongs to the technical field of super-hydrophobic coating, and particularly relates to a high-wear-resistance high-transparency super-hydrophobic nano coating and a preparation method thereof. In order to develop a super-hydrophobic coating material with high wear resistance and high transparency, the present application prepares a surface rough structure required by a super-hydrophobic coating through an organic-inorganic nano hybrid material, and prepares a coating surface with a single nano scale and a conical structure through a V-shaped nano pore template, and then chemically modifies the surface structure through a liquid-like molecule with low surface energy and low friction coefficient. After steps such as preparation of a coating, pretreatment of a template, preparation of a coating structure, and chemical modification of a coating surface, a super-hydrophobic nano coating is prepared. Through synergistic effects of organic-inorganic hybridization, nano conical geometry, and liquid-like surface chemistry, the wear resistance of the coating is effectively improved, and the coating has high transparency and super-hydrophobicity.

The invention belongs to the field of coatings, and provides a low-temperature curing weather-resistant polyester powder coating and a preparation method thereof. According to the preparation method disclosed by the invention, double-intermediate collaborative design of a polyester / silicon dioxide covalent nano hybrid intermediate and a latent curing microgel intermediate is adopted, and a covalent bonding nano SiO uniform dispersion system is constructed through in-situ hydrolytic condensation of a silanized polyester prepolymer and tetraethoxysilane; carboxyl polyester and tetrahydroxy amide are partially cross-linked to form latent curing microgel, low-temperature rapid curing at 130-150 DEG C is achieved, the 60-degree glossiness of a coating film is larger than or equal to 85%, the glossiness retention rate is larger than or equal to 80% after a xenon lamp is aged for 500 hours, and the powder fluidity is larger than or equal to 15 g / 10 s. The technical problems of contradiction between low-temperature curing and weather-resistant long-term effect, contradiction between nano SiO dispersion and powder flowability and opposition between optical decoration and ultraviolet shielding physical limit of an existing powder coating system are solved, and the powder coating has wide application value in the fields of aluminum alloy doors and windows, steel structure protection, household appliance shells, outdoor facilities and the like.

This application discloses a micro-nano hybrid SiC p The invention relates to a reinforced aluminum-based composite cylindrical component and a preparation method thereof, and belongs to the technical field of plastic processing of aluminum alloy materials. p , nano-SiC p After mixing with aluminum powder, high-energy ball milling is performed, and after high-temperature dissolution and ultrasonic treatment with aluminum alloy, die casting and homogenization are performed, and then continuous forging + reverse extrusion and T6 heat treatment are performed to obtain micro-nano hybrid SiC p Reinforced aluminum-based composite cylindrical piece, micro-nano hybrid SiC prepared by the preparation method provided in this application p Reinforced aluminum matrix composite cylindrical parts can make nano-scale SiC p , micron SiC p It is interlocked with aluminum powder to increase the strength and hardness of the crystal, thereby improving the mechanical properties of the aluminum-based composite material; through continuous forging and reverse extrusion thermal deformation, it can eliminate casting defects such as shrinkage and pores to achieve grain refinement and improve the distribution of reinforcement, thereby giving the cylindrical part excellent mechanical properties.