60results about How to "Excellent physical shielding effect" patented technology

The invention relates to an environment-friendly elastomer modified asphalt waterproof material which is prepared from the following components in parts by weight: 20-30 parts of 10# asphalt, 40-50 parts of 100# asphalt, 12-15 parts of an elastomer modifier, 10-15 parts of laminar bihydroxyl compound metal hydroxide, 17-25 parts of talcum powder, 5-10 parts of a stabilizer and 5-10 parts of packing. The softening point of asphalt is 45-50 DEG C and the elastomer modifier is a mixture of one or two of a linear styrene-butadiene-styrene triblock thermoplastic elastomer and a star-like styrene-butadiene-styrene triblock thermoplastic elastomer, wherein the elastomers are mixed in any proportions.

The invention discloses an anti-corrosion graphene coating. The anti-corrosion graphene coating is characterized by containing the following raw materials in parts by weight: epoxy resin, deionized water, graphene sheets, graphene dispersion liquid, a leveling agent, a wetting and dispersing agent, pigments, an ethanol solvent, an anionic acrylic emulsion, a defoaming agent, an Rs preservative, acuring agent, polyaniline, a film forming aid, isooctyl ester, a thickener, dimethyl fumarate, a mold release preservative, a toughening agent and a silane coupling agent. The preparation method comprises the following steps: (1) mixing, and stirring; (2) adding ingredients, and stirring at a high speed, so as to obtain slurry; (3) adding the slurry into a sand mill, and carrying out sand milling;and (4) putting the slurry into a size mixing tank, and stirring at a high speed, so as obtain the anti-corrosion graphene coating. By utilizing environment-friendly materials, the quality of a product is substantially improved; the time and the materials are saved, the anti-corrosion graphene coating is convenient to use only through thin coating and has excellent properties of water resistance,heat resistance, corrosion resistance, weather resistance, stability and the like.

The invention relates to anti-aging plastomer modified asphalt coating materials and a preparation method of the anti-aging plastomer modified asphalt coating materials. The anti-aging plastomer modified asphalt coating materials are characterized by comprising, by mass, 50%-66% of asphalt, 8%-14% of plasticity modifying agents, 1%-6% of antioxidant intercalation magnalium base layer double-hydroxyl composite metal hydroxide and 25%-30% of padding. According to the anti-aging plastomer modified asphalt coating materials and the preparation method of the anti-aging plastomer modified asphalt coating materials, the prepared antioxidant intercalation magnalium base layer double-hydroxyl composite metal hydroxide is added into plastomer modified asphalt; due to the facts that the magnalium base layer double-hydroxyl composite metal hydroxide has the good physical shielding effect to ultraviolet rays, and interlayer antioxidants have the effect for blocking free radical chain reaction in the plastomer modified asphalt ageing process, the ultraviolet aging resistant capacity and thermo-oxidative aging resistant capacity of the plastomer modified asphalt coating materials are improved, and the anti-aging capacity of the prepared plastomer modified asphalt coating materials is significantly improved.

The invention discloses a preparation method of an epoxy zinc/graphene heavy-duty anticorrosive coating and belongs to the technical field of coating preparation. Graphene and zinc dust are firstly ground and compounded to obtain a graphene-zinc composite powder, and the surface of the graphene-zinc composite powder is modified by the use of toluene diisocyanate. Agglomeration of graphene and zincdust in resin can be effectively prevented, and dispersity of the composite powder in resin is greatly improved. And then, anticorrosive effect of the graphene composite powder can be fully performed, and corrosion resistance of the epoxy resin coating is enhanced. Epoxy resin, a filter, modified graphene-zinc composite powder and other ingredients are mixed to obtain an ingredient A, a curing agent is used as an ingredient B, and the ingredient A and the ingredient B are mixed to obtain the epoxy zinc/graphene heavy-duty anticorrosive coating. The coating has good flexibility and good corrosion resistance, and salt spray resistance time can reach 3000 h and above.

The invention discloses a preparation method of graphene flame-retardant nylon, which belongs to the field of synthetic fibers and comprises the following steps: adding a coupling agent to 95% ethanol aqueous solution, adding graphene, an inorganic flame retardant, and glass fiber, And add ammonia water to adjust the pH value at 10-12, and stir at a high speed to obtain a graphene flame-retardant composite material; mechanically stir and evaporate at 80-90°C until the mixture is viscous, then dry at 50-60°C for 12 hours to obtain graphite Graphene-coated inorganic flame retardant composite material powder; Nylon chips and graphene-coated inorganic flame retardant composite material powder are mixed at high speed, twin-screw extruded and granulated; the composite masterbatch is spun and then slowly cooled Forming, oiling, stretching and winding, storage. The beneficial effect of the invention is: graphene has a high specific surface area, so that the inorganic flame retardant is evenly spread on the surface of the graphene instead of disordered stacking, so that the use of graphene can reduce the usage amount of the inorganic flame retardant.

The invention discloses a graphene super anticorrosive powdery paint, and a preparation method thereof. The graphene super anticorrosive powdery paint is prepared from 35 to 45 parts of polyphenol type glycidyl ether epoxy resin, 25 to 35 parts of hydantoin epoxy resin, 10 to 12 parts of graphene particle, 15 to 18 parts of glass bead, 2 to 3 parts of 2-methylimidazole, 8 to 10 parts of mica powder, 2 parts of a levelling agent, 5 to 8 parts of iron red, and 0.5 part of benzoin. The preparation method is capable of dispersing graphene in the graphene super anticorrosive powdery paint to be uniform, and the obtained graphene super anticorrosive powdery paint is excellent in effects.

The invention discloses an environmentally-friendly solvent-free anticorrosive graphene coating and a preparation method thereof. The coating of the invention is prepared from, by weight, 30-40 partsof epoxy resin, 15-20 parts of a reactive diluent, 0.15-0.2 part of graphene, 5-10 parts of an assistant, 20-25 parts of iron oxide red, 10-15 parts of mica powder, 0.4-0.8 part of fumed silica, 4-6 parts of barite, 6-10 parts of tripolyphosphate, 0.5-1.5 parts of a silane coupling agent and 7-15 parts of a phenolic amine epoxy resin curing agent. The product of the invention is a solvent-free coating, does not contain volatile organic solvents, has a solid content of 100% and a VOC content of zero, and is green and environmentally friendly; and the super large specific surface area, excellentbarrier property, high chemical stability and good electrical conducting property of the graphene are utilized, so the comprehensive properties of the anticorrosive composite coating are greatly improved.

The invention discloses an ultraviolet aging-resistant modified asphalt mixture and a preparation method thereof. The ultraviolet aging resistant-modified asphalt mixture is prepared from the following raw materials: coarse aggregate, fine aggregate, mineral powder and ultraviolet aging-resistant modified asphalt. The ultraviolet aging-resistant modified asphalt is prepared from the following rawmaterials: asphalt, SBS, surface organic modified magnesium-aluminum-based layered double hydroxide, an accelerant and a compatilizer. The preparation method comprises the following steps: selecting coarse aggregate, fine aggregate and mineral powder to prepare the ultraviolet aging-resistant modified asphalt; preheating the ultraviolet aging resistant modified asphalt, the coarse aggregate, the fine aggregate and the mineral powder; weighing the coarse aggregate, the fine aggregate, the mineral powder and the ultraviolet aging-resistant modified asphalt, and mixing all the components to obtain the ultraviolet aging-resistant modified asphalt mixture. Experimental results show that the ultraviolet aging-resistant modified asphalt mixture prepared by the preparation method disclosed by theinvention has very good ultraviolet aging resistance.

The invention discloses a zinc-alkene anticorrosive coating for a steel structure workpiece of railway track bridge equipment. The zinc-alkene anticorrosive coating contains the following components in percentage by weight: 10%-40% of modified epoxide resin, 20%-50% of a functional filling, 0.01%-28% of zinc powder, 0.2%-3% of graphene, 3%-15% of a surfactant, 5%-25% of xylene and 5%-25% of n-butyl alcohol. The zinc-alkene anticorrosive coating is applied to the anticorrosion field of steel structure workpieces of the railway track bridge equipment by virtue of water repellency and rapid electrical conductivity of nanometer two-dimensional flake graphite. According to anticorrosion principles of the coating that the graphene has good electrical conductivity and flake zinc powder has a lap joint property, a good conductive layered network structure is formed on the surface of a coating layer to block immersing of corrosive mediums, so that the coating has a good physical shielding effect, the steel structure workpiece is effectively protected, and the corrosion resistance of the surface of the steel structure workpiece is enhanced. Besides, partial zinc powder is replaced with graphene, the coating has an excellent cathode protection effect, and furthermore, the use amount of the zinc powder is reduced in a preparation process of the coating, so that the harm and pollution caused by zinc steam to a human body and environments in a later weld machining process are alleviated.

The invention discloses a passivation solution for a stainless steel body of a railway vehicle and a preparation method therefor. The preparation method comprises four steps of preparation of hydroxylated boron nitride, preparation of amino modified boron nitride, preparation of titanate coupling agent modified montmorillonite, and preparation of the passivation solution. According to the invention, hexagonal boron nitride is modified by hydroxylation, then polyamidoamine is introduced through grafting; the dendritic structure of the polyamidoamine can enhance the physical shielding effect of boron nitride; the metal substrate is protected by prolonging the diffusion path of a corrosive medium, and the corrosion resistance of the passivation solution is improved; the polyamidoamine with the dendritic structure and montmorillonite with a layered structure are introduced, and the two structures cooperate with each other, so that the space barrier effect is enhanced together, diffusion of corrosive substances is retarded, and the anti-corrosion performance of a metal substrate is further improved.

The invention relates to waterborne weather-resisting anticorrosive coating and a preparation method thereof and relates to the field of waterborne anticorrosive coating. The coating is prepared by uniformly mixing and stirring a resin component and an isocyanato curing agent component, wherein the resin component contains fluorocarbon resin, and the ratio of the hydroxyl mol number of the fluorocarbon resin to the isocyanato mol number of the isocyanato curing agent component is 1 to (1.02 to 1.05); the resin component also contains graphene powder which accounts for 0.1 to 5.0 percent of thetotal weight of the coating; the coating can be used for effectively improving the water resistance, acid resistance, alkali resistance, temperature and heat resistance, salt mist resistance and weather resistance of a whole body, so that the safe, green, environment-friendly and pollution-free utilization requirements on the coating in the market can be effectively met.

The invention relates to the technical field of calcium silicate board preparation, in particular to a calcium silicate board prepared from industrial waste residue and a production process thereof. The raw materials for preparation of the calcium silicate board from industrial waste residue include, by dry weight percentage, 35-45 parts of blast furnace steel slag; 5-15 parts of fly ash; 10-25 parts of desulfurization gypsum; 1-5 parts of mica powder; 20-35 parts of an anti-ultraviolet ageing agent; 5-10 parts of sanding powder; 0.05-0.1 part of polyacetamide. The raw materials are prepared into a mixed material. Specifically, the blast furnace steel slag, fly ash and desulfurization gypsum are all solid wastes discharged from smelting plants. The calcium silicate board product made by the process provided by the invention meets the various index requirements of the national standard, not only can reduce the pollution of industrial solid waste discharge to the environment, but also can achieve the economic and social benefits of turning "waste" into wealth. Layered dihydroxyl composite metal hydroxide is a multistage superimposed layer structure composed of a layered host double hydroxide laminate and interlayer guest anions, has excellent physical shielding effect to ultraviolet, and can effectively improve the anti-ultraviolet aging properties.

The invention discloses a water-based anticorrosive coating applied to a deep sea environment as well as a preparation method and application of the water-based anticorrosive coating. The water-based anticorrosive coating comprises a component A and a component B, wherein the component A comprises a titanium carbide nanosheet/nanocellulose compound, a water-based resin emulsion and a dispersing solvent; the component B comprises a water-based curing agent; and the titanium carbide nanosheet/nanocellulose compound is prepared by carrying out a cross-linking reaction on titanium carbide nanosheets and nanocellulose. The titanium carbide nanosheet/nanocellulose compound in the prepared water-based anticorrosive coating can be stably dispersed in the water-based resin emulsion, so micropore defects formed in the rapid curing process of the water-based resin can be effectively filled, and thus, the compactness and integrity of the coating are improved; and meanwhile, by adding the titanium carbide nanosheet/nanocellulose compound, the physical shielding effect, the mechanical property and the corrosion resistance of the coating can be improved, and the coating can be widely applied to a complex deep sea alternating pressure environment.

The invention discloses a graphene reinforced epoxy resin anticorrosion coating which is characterized by being prepared from the following raw materials: epoxy resin E51, butadiene rubber, n-hexane, maleic anhydride, dicumyl peroxide, tetrahydrofuran, methanol, p-xylylenediamine, dibutyltin dilaurate, graphene oxide, aniline, hydrochloric acid, an ammonium persulfate solution, octaphenyl polyoxyethyiene, carboxymethyl cellulose, a proper amount of acetone and a proper amount of deionized water. The graphene reinforced epoxy resin anticorrosion coating disclosed by the invention has the advantages of being good in salt water resistance, good in corrosion resistance, free of toxin, good in environmental friendliness and the like.

A silicate-reinforced polyurethane coating is characterized in that the polyurethane coating is prepared from the following ingredients in parts by weight: acetone, sodium hydroxide solution, anhydrous zinc chloride, n-butylaldehyde, cyclohexane, anhydrous magnesium sulfate, benzenetetracarboxylic anhydride, 1,2-propylene glycol, terephthalic acid, montmorillonite, talcum powder, sodium tripolyphosphate, silane coupler KH-560, absolute ethyl alcohol, butanediamine, acrylonitrile, ferric chloride, 1-butyl-3-methylimidazolium hexafluorophosphate, N-phenyl-N'-isopropyl-p-phenylenediamine, propylene glycol butyl ether, N,N'-lutidine, triethylamine, methylene diphenyl diisocyanate, appropriate amount of hydrochloric acid solution and appropriate amount of deionized water. The polyurethane coating hereof has the advantages of firm coating bonding, uniform thickness, strong salt water resistance, good wear resistance, good anti-corrosion performance, non-toxicity and environmental protectionand the like.

The invention discloses an outer ultraviolet-resistant polyethylene wallboard prepared from waste brick dregs and a production method of the wallboard. The wallboard is prepared from raw materials in parts by weight as follows: 70-75 parts of the waste brick dregs and the like. The outer wallboard takes ceramic waste as a main raw material, the clay resource is saved, the production cost is reduced, the problem about treatment of the ceramic waste is also solved, and environmental pollution caused by the ceramic waste is avoided; laminated dihydroxy composite metal hydroxide adopts a multi-level overlapped laminated structure comprising main laminated bodies, namely, double metal hydroxide laminates, and interlamination objects, namely, anions, and the laminated dihydroxy composite metal hydroxide has the excellent physical shielding effect on ultraviolet rays and can effectively improve the ultraviolet aging resistance.

The invention discloses an anti-corrosion water-based epoxy coating based on divalent zinc ions and phytic acid modified graphene oxide and a preparation method of the anti-corrosion water-based epoxy coating, and belongs to the technical field of anti-corrosion water-based epoxy coatings. The preparation method comprises the following steps: adjusting the pH value of a solution, selecting zinc nitrate hexahydrate and phytic acid as precursors, loading phytic acid functional groups and divalent zinc ions on graphene oxide, adding a modified graphene oxide filler into waterborne epoxy and a curing agent, mixing, and curing to obtain the waterborne epoxy coating. In a 3.5% wt. NaCl solution, compared with a blank waterborne epoxy coating, the corrosion resistance of the coating is improved by more than 5 times, the corrosion current density is reduced to an order of magnitude, and the chloride ion corrosion resistance of the coating is greatly enhanced. According to the graphene oxide loaded with phytic acid functional groups and divalent zinc ions, the dispersity of the graphene oxide in a water-based epoxy coating is improved, and the corrosion resistance of the water-based epoxy coating in a seawater environment is remarkably enhanced.

The invention discloses an organic substance bonding-type zinc powder and a preparation method thereof. The zinc powder is prepared from the following raw materials in parts by weight: 10 to 12 parts of spherical zinc powder, 2 to 6 parts of organic amine and 3 to 15 parts of water. The preparation method comprises the following steps: adding spherical zinc powder into an aqueous solution of organic amine in a reaction kettle, allowing reactions to take place for 20 to 40 min at room temperature or in a low temperature heating condition (35 DEG C to 60 DEG C), filtering, recovering the filtrate, washing the zinc powder until neutral, drying and grinding to obtain the final product of organic substance bonding-type zinc powder. According to the organic substance bonding-type zinc powder obtained by the preparation method, the physical shielding performance of spherical zinc powder is enhanced, the early corrosion prevention performance of spherical zinc powder coating is improved, the electric conductivity of the original zinc powder is not changed, and the overall anti-rust performance is improved. The preparation method has the advantages of no strict requirement for reaction conditions, simple process, convenience for operation and industrial production, recycling of the filtrate, low production cost, and good economic and social benefits.