349results about How to "Strong aging resistance" patented technology

The invention relates to a method for enhancing bituminous mixtures by adopting chopped basalt fibers, belonging to the technical field of novel compound materials. According to the invention, continuous basalt protofilaments or twistless rovings the surfaces of which are expanded into fibers in certain length, and then the fibers are used for enhancing the bituminous mixtures in a certain doping proportion and can be respectively used for maintaining the bituminous mixtures used for new construction and reconstruction and extension of highways and SMA and OGFC bituminous mixtures as well as fiber seals. In addition, the fibers can also be used for the enhancement of high-speed railway packing layer CA mortar and relevant hydraulic architectures. The chopped basalt fiber plays roles of enhancing, toughening and elasticizing the cracking prevention, crack resistance and reinforcement and 'bridging' in the enhanced bituminous mixtures, can obviously increase the anti-rutting ability of highways of the enhanced bituminous mixtures and reduces the whole life costs of the enhanced bituminous mixtures; if the fibers are used for high-speed railway plate-type ballastless tracks and CA mortar, the bending strength and the deformation resistance can be increased, i.e. the fibers play a role of crack prevention and crack resistance; in addition, the fibers have better anti-water leakage action if being used for Hydraulic and Hydro-Power Engineering.

The invention discloses a sand texture type polyester/epoxy powder coating and a preparation method thereof. The sand texture type polyester/epoxy powder coating comprises the following raw materials, by weight, 350-400 parts of polyester resin (P5040), 240-280 parts of epoxy resin (E-12), 100-150 parts of extinction barium sulfate, 40-60 parts of spherical silica powder, 8-12 parts of modified polyethylene wax powder, 10-15 parts of organic coated titanium dioxide, 5-10 parts of sand texture agent (SWMBX-30), 4-6 parts of benzoin, 5-8 parts of 2-phenyl imidazoline, 4-6 parts of 2-methylimidazole, 5-10 parts of ferrite yellow, 5-10 parts of iron oxide red and 10-15 parts of carbon black. The prepared powder coating has the advantages of being high in hardness, high in intensity, high in abrasion resistance, good in heat resistance, good in ageing resistance, short in solidifying time, environment-friendly, free of pollution and the like. The solidified coating produces a texture effect of the sand texture, the sand texture is meticulous and clear, distribution is even, visual comfort is provided for people, and combination properties of the coating are good.

The invention provides a novel anti-corrosion, anti-ultraviolet, anti-bacteria and wear-resistant paint and a preparation method for the same. The novel anti-corrosion, anti-ultraviolet, anti-bacteria and wear-resistant paint is composed of an agent A and an agent B, wherein the agent A is composed of the following components in percentage by weight: 60-70% of fluorocarbon resin, 1-8% of graphene nanometre micro-sheets, 0-2% of an ultraviolet absorber, 0.5-1% of a dispersing agent, 0.5-1% of a levelling agent, 0.5-1% of a defoaming agent, 1-3% of bentonite, 20-25% of titanium dioxide, 0.5-1% of an adhesion promoter and 2-5% of a solvent; and the agent B is a curing agent used with the agent A. The preparation method provided by the invention is simple in operation and preparation processes; the prepared graphene anti-corrosion paint is excellent in wear-resistant, ageing-resistant, anti-bacteria and anti-corrosion performances; and moreover, graphene has no toxic and side effects, as well as is efficient and environment-friendly.

The invention belongs to the technical field of coatings, and particularly relates to a modified polyaspartic acid ester polyurea coating and a preparation method thereof. The coating comprises a component A and a component B, and the component A and the component B are respectively prepared and independently stored. The component A comprises isocyanate and/or a polymer of isocyanate; and the component B is prepared from the following substances in parts by weight: 20 to 75 parts of organic silicon and epoxy dual-modified polyaspartic acid ester resin, 5 to 35 parts of a filler, 0.1 to 5 partsof a pigment, 0.5 to 10 parts of an auxiliary agent and 5 to 30 parts of a solvent. An organic silicon unit and an epoxy unit are introduced into a polyaspartic acid ester resin structure to obtain anovel polyurea coating with excellent low-temperature flexibility, bonding strength, weather resistance and mechanical properties, and the coating is simple in preparation method, good in controllability, low in cost, capable of being prepared in batches and suitable for industrial production.

The invention discloses a low-carbon waterborne coating. The coating comprises components in parts by weight as follows: 40-80 parts of a basic material, 18-26 parts of a pigment, 10-18 parts of functional filler, 0.2-0.7 parts of a rheological agent, 0.1-0.5 parts of a wetting dispersant, 0.2-0.6 parts of a substrate wetting agent, 0.2-0.5 parts of an anti-settling agent, 0.2-0.6 parts of an antifoaming agent, 0.2-0.6 parts of a thickener, 0.1-0.5 parts of a leveling agent, 2-5 parts of a flame retardant, 15-20 parts of a curing agent and 50-100 parts of deionized water. The low-carbon waterborne coating has the advantages of short drying time, high adhesion, high elasticity, medium resistance, bending resistance, flame retardance, high-and-low-temperature resistance, no adverse effect on the basic material and the like, and is an environment-friendly low-carbon waterborne coating with excellent combination properties.

The invention discloses a power lithium battery top cover electrode column sealing connection and an explosion-proof device and a manufacturing and assembling method thereof. Teflon sealing ring with conical surface 5, electrode column with conical surface 6, injection molded parts 7, explosion-proof locking screw 8, Teflon sealing washer 9, Teflon sealing washer 10, Teflon explosion-proof film 11, explosion-proof Valve body 12, circumferential laser welding 13. An electrode column with a tapered surface is designed, and the Teflon sealing ring is elastically deformed in the radial direction by using the tapered surface. When the lock nut 2 is locked, the purpose of reliable sealing of the plane and the hole is achieved. The explosion-proof device selects Teflon with excellent performance as the sealing gasket and explosion-proof membrane, and the threaded connection is compressed. The invention has the advantages of excellent sealing performance, strong corrosion resistance, aging resistance, small pressure relief damage, wide high and low temperature impact range, simple manufacturing and assembly process, stable and reliable explosion-proof safety performance, and the like.

The invention discloses a composite wall of a fiber cement board. The composite wall is prepared from the following raw materials in parts by weight: 40-60 parts of silicate cement, 10-20 parts of wood fiber, 10-15 parts of carbon fiber, 5-15 parts of vinylon fiber, 5-10 parts of light calcium powder, 3-8 parts of perlite, 5-10 parts of silica fume, 1-10 parts of glass fiber, 1-10 parts of a foaming agent, 1-5 parts of a dispersing agent, 1-5 parts of a toughening agent, and 1-3 parts of a thickening agent. Compared with the prior art, the composite wall disclosed by the invention is high in strength, good in tenacity, meanwhile good in fire protection, thermal insulation and sound insulation, high in ageing-resistance performance, low in cost, easy to construct, and wide in application range.

The invention relates to a grapheme-modified waterborne anticorrosive coating. The grapheme-modified waterborne anticorrosive coating is composed of a grapheme-modified waterborne alkyd resin, pigment and filler, a cosolvent, a leveling agent, a dispersing agent, a wetting agent, a defoaming agent, a thickening and anti-settling agent, a flash rust inhibitor, a pH value regulator and deionized water, wherein the graphene polyurethane-modified waterborne alkyd resin is prepared from vegetable oil or fatty acid, organic acid anhydride, dimethylolpropionic acid, polyol, grapheme, polyisocyanate and deionized water through a reaction. The prepared grapheme-modified waterborne anticorrosive coating integrates the advantages of grapheme and polyurethane, has properties like high hardness, good adhesion, good chemical resistance, antistatic performance, corrosion resistance, aging resistance and good mechanical properties, and is endowed with excellent corrosion resistance, aging resistance, excellent mechanical properties and antistatic performance.

The invention relates to the field of the manufacturing of industrial leather, and in particular relates to a production process of anti-staining automobile interior leather. The production process comprises the steps of soaking, fleshing, liming, fleshing splitting, deliming, softening, pickling, tanning, aging, shaving, conditioning, retanning, neutralizing, dyeing, electrostatic conditioning, wringing stretching, wet vibrating, vacuum drying, vibrating, milling, bottom layer coating, electrostatic treatment, knurling, intermediate painting, anti-staining top layer preparing, anti-staining reinforced layer preparing, measuring and warehousing, wherein anti-staining top layer paint and anti-staining reinforced layer paint are respectively proportioned according to the appropriate components and then are sprayed onto the leather surface according to the appropriate coating amount, and then the leather is dried. Through the combined action of different functions, not only is the anti-staining performance strong, but also the anti-staining effect is remarkable, stains which are not repelled are easy to scrub and clean due to the difficulty in combination and permeation, and the automobile interior leather which is anti-staining and easy to clean can be achieved.

The invention provides glass fiber reinforcement polymer modification cement for a curtain wall board and a preparing method. The cement is prepared from glass fiber, water, quartz sand, polymer, coal ash, silica fume, cement, a water reducing agent, an anti-foaming agent and a silane coupling agent. The glass fiber, the quartz sand, the coal ash, the silica fume and the cement which are metered well are thrown into a mixing machine to be mixed for 3 min; the polymer and the anti-foaming agent are mixed uniformly and added into the mixing machine to be mixed for 2 min; the water reducing agent and the silane coupling agent are poured into water to be mixed uniformly, added into the mixing machine by three times and stirred for 2 min. The glass fiber and the polymer are added into mortar, the mechanical performance, the anti-aging performance and the anti-frost property of the cement are improved, the life of the curtain wall structure under the effect of freezing and thawing damage, high temperature and high humidity is prolonged, the service period is greatly shortened, and the later-stage maintenance cost is reduced greatly.

The invention provides water-borne UV paint and a preparation method thereof. The water-borne UV paint is prepared from, by mass, 25%-35% of urethane acrylate, 20%-30% of epoxy acrylate, 5%-10% of water-borne hyperbranched polyurethane, 5%-10% of fluorocarbon resin, 5%-15% of photoinitiator, 2%-5% of dispersing agent and 2%-10% of assistant. Urethane acrylate is fluorinated fluorinate containing urethane acrylate, epoxy acrylate is a mixture of bisphenol A epoxy acrylate and epoxy acrylate epoxy tetrapropylene acid ester, and the auxiliary is a mixture of an organic silicone flatting agent and a fluorocarbon modified flatting agent. The preparation method of the water-borne UV paint is simple in process, the prepared paint has good attachment performance and water-repellent and water-resistant performance, compared with traditional UV paint, the water-borne UV paint is higher in curing speed, and bubbles generated in the curing process are avoided. Meanwhile, the corrosion resistance, aging resistance and acid-alkali resistance of the paint are remarkably improved, and the water-borne UV paint is ideal metal and woodware surface paint.

The invention discloses a preparation method of modified composite ultrafine talcum powder, which comprises the following steps: (1) breaking raw material, and grinding the broken material to fine powder; (2) adding water and grinding-assistant medicine into the ground material to be configured into pulp with the concentration of 50 to 70 percent and to be uniformly mixed; (3) configuring composite modifier, silane coupling agent and sodium stearate to surface modification solution to be poured into the pulped material so as to modify the material; (4) carrying out the wet-method ultra-fine grinding on the modified material, and requiring the particles with the granularity being less than 2 micrometers for the mineral pulp ultra-fine grinding to be more than 95 percent; (5) forcibly drying and collecting the material after being ultra-fine ground. By utilizing the wet-method ultra-fine grinding and mightiness drying process, the prepared modified composite ultra-fine talcum powder has smaller granularity than that of ordinary talcum powder and wider distribution, resists the insolation and high temperature, has good water resistance, resists pollution, and has strong anti-aging performance.

The invention relates to a hatch cover device capable of being automatically opened, closed and locked. The hatch cover device comprises a pressure withstanding shell taper section, the bottom of the pressure withstanding shell taper section is provided with a locking rotary ring through a surrounding wall, a rack base and a support are installed at one end of the pressure withstanding shell taper section, an opening-closing electric push rod is connected to the support, the head of the opening-closing electric push rod is connected with the top of a hatch cover through an opening-closing lever, and the opening-closing lever is hinged to the rack base. A sealing ring is arranged on the inner end face of the hatch cover, and a plurality of wedge-shaped lugs are evenly distributed on the outer end face of the hatch cover in the circumferential direction; protruding lugs are arranged on the inner circumferential face of the locking rotary ring and are divided into the upper layer protruding lugs and the lower layer protruding lugs; the lower layer protruding lugs are matched with the wedge-shaped lugs on the hatch cover; racks are further installed at the other end of the pressure withstanding shell taper section through rack supports, a locking electric push rod is installed through a push rod support, the head of the locking electric push rod is in butt joint with the racks, and gear rings meshed with the racks are installed at one end of the locking rotary ring. The hatch cover device is good in working reliability, has the site operability, and is good in opening-closing locking sealing effect and high in bearing capacity.

The invention discloses a bamboo floor surface coating method, and belongs to the technical field of surface treatment. The bamboo floor surface coating method comprises the following steps of: sanding; coating wood oil; a roll-coating an aqueous adhesive; drying; roll-coating transparent putty; drying and then sanding; roll-coating a covering primer; drying; coating UV (Ultraviolet) printing ink; drying; roll-coating a wear-resistant primer; drying; spraying a varnish; spraying a UV surface paint; drying; and packaging. By using the method, the phenomena of high probability of dulling, surface cracking, paint film stripping and the like of bamboo floor caused by the conventional bamboo floor surface coating method are solved; the bamboo floor surface coating method is easy to operate and has practicability; and aging resistance of bamboo floor can be improved.

The invention discloses a method for repairing damage to a broken rubber conveying belt and a heating device thereof and belongs to the technical field of conveying belt repairing. In order to solve technical problems, the invention provides the method for repairing the broken rubber conveying belt and the heating device thereof, which are not limited by the environment temperature, only need lowtemperature heating and are convenient to operate. The invention adopts a technical scheme that the method for repairing the broken rubber conveying belt comprises the following steps of: polishing, conveying belt surface chemical treatment, adhesive coating, heating to activate adhesiveness, bonding, rolling and hammering. In the heating device for performing the method for repairing the broken rubber conveying belt, both a reflecting plate and a shell are n-shaped; the reflecting plate is positioned in the shell; a heating body is arranged at the top in the reflecting plate; two aluminium angle steels are symmetrically arranged below the shell and the reflecting plate; a protective net is arranged below the aluminium angle steels; one end of the side surface of the shell is a control area; and a switch is arranged in the control area. The method and the device can be popularized and applied to the repairing the broken conveying belt.

The invention provides an antimicrobial anti-aging refrigerator door sealing strip and a preparation method thereof. The antimicrobial anti-aging refrigerator door sealing strip comprises a rubber sleeve and magnetic powder, wherein the rubber sleeve comprises raw materials with percentage by weight: polyvinyl chloride 30-65%, ethylene-vinyl acetate copolymer 3-10%, chlorinated polyethylene 7-15%, tributyl citrate 20-30%, natural antibacterial agent 3.5-12% and epoxy alopecuroides seed oil 1.5-3%. The rubber sleeve is made through many process methods, the magnetic powder is added in the rubber sleeve, the positions of four corners are welded through fusing or bonded to make into the antimicrobial anti-aging refrigerator door sealing strip, and the antimicrobial anti-aging refrigerator door sealing strip is smooth in sense of touch and high in rebound resilience. The antimicrobial anti-aging refrigerator door sealing strip has the effects of wide antimicrobial spectrum, high efficiency, persistence and safety, also can improve mechanical strength, cold resistant and ageing resistance ability, has the effects of aroma enhancement and far infrared radiation, plays the roles of purifying the environment, eliminates peculiar smell and self cleaning and mildew proofing, and is beneficial for human bodies to obtain more health interests. The antimicrobial anti-aging refrigerator door sealing strip does not deform, excellent in sealing effect, energy-saving and environmentally friendly and long in service life.

The present invention provides an antibacterial and anti-aging plastic container and a preparation method thereof, wherein the raw materials of the plastic chopping board in the formula comprise, by weight, 75-95% of a polymer, 3-20% of a natural antibacterial agent, 1.2-3% of semen arecae seed, and 0.8-2% of a coupling agent, and the natural antibacterial agent is prepared from 75-90% by weight of loess powder, 5-15% by weight of a pomegranate peel extract, 3-6.5% by weight of a chestnut shell extract, and 2-3.5% by weight of a aruncus sylvester root extract. According to the present invention, the plastic container is prepared through the processing ways of the multiple approaches, and has characteristics of smooth surface, good size stability, strong, efficient, broad-spectrum, long-lasting and safe antibacterial effect, effective prolonging of the shelf lives of various types of food, medicine and cosmetics and other items during the holding process, excellent aging resistance, good mechanical property, and long service life; and the far-infrared radiation effect can further provide effects of air refreshing, environment purification and odor eliminating so as to easily achieve environmental protection.

The invention provides a novel halogen-free flame retardant composite material. The novel halogen-free flame retardant composite material comprises the following components in percentage by weight: 28% to 64.5% of polypropylene, 10% to 20% of thermoplastic polyurethane elastomer, 5% to 10% of bulking agent, 15% to 25% of halogen-free flame retardant agent, 5% to 15% of flame retardant synergist, and 0.5% to 2% of coupling agent, wherein the total percentage of the components by weight is 100%. The invention also aims at providing a preparation method of the novel halogen-free flame retardant composite material. The novel halogen-free flame retardant composite material has the advantages that the preparation technology is simple, the mechanical property is good, the high temperature-resistant property and flame-retardant property are realized, the efficiency is high, the clean and environment-friendly effects are realized, and the novel halogen-free flame retardant composite material can be widely applied to the fields of automobiles, household parts and accessories, wires and cables, and the like.

The invention discloses a preparation method of anti-aging nano-organic montmorillonite modified asphalt. According to the preparation method, self-prepared nano-organic montmorillonite (1827-OMMT) is used for modifying asphalt, so that a nano-organic montmorillonite modified asphalt binder having excellent aging resistance can be obtained. The aging resistance of the obtained anti-aging nano-organic montmorillonite modified asphalt is remarkably improved compared with matrix asphalt. By adopting the different contents of 1827-OMMT, the aging resistance and synthetical pavement performance of the matrix asphalt are greatly improved, and especially, the high-temperature stability of the matrix asphalt is improved; the anti-aging nano-organic montmorillonite modified asphalt can meet the use demand of asphalt pavement at the present stage, reduces the generation of wheel ruts, improves the durability of the asphalt pavement and prolongs the service life of the asphalt pavement.

The invention discloses a wear-resisting waterproof self-cleaning super-hydrophobic lotus leaf effect emulsion paint and a preparation method thereof. The wear-resisting waterproof self-cleaning super-hydrophobic lotus leaf effect emulsion paint is prepared from the following raw materials: polymer emulsion, a coalescing agent, a defoaming agent, an antifreezing agent, a wetting dispersant, a pH modifier, a preservative, a leveling agent, a thickening agent, pigment, filler, polymer micro powder and tap water. The wear-resisting waterproof self-cleaning super-hydrophobic lotus leaf effect emulsion paint disclosed by the invention has the advantages of better anti-fouling performance which can reach 1 grade or above, contact angle of 135 degrees or above, high hydrophobicity, good scrub resistance, good aging resistance and capability of maintaining the external wall as new for a long time; rainwater can instantly slip in a water drop form without internal seepage, the hydrophobic waterproofing function is stronger and the hydrophobic effect is durable; with a surface microstructure of the emulsion paint, dust cannot be effectively contacted with the wall surface, so that the aims of easiness in shedding and self-cleaning are achieved.

The invention discloses an AZO transparent conductive film paint, glass plated with the paint and preparation methods thereof. The paint consists of a nano zinc oxide crystal doped with one or more metal ions selected from aluminium ion, tin ion, copper ion, molybdenum ion, titanium ion, vanadium ion, cerium ion, yttrium ion and magnesium ion. A surface of regular glass or ultra-white float glass is plated with the paint through an electrostatic spraying to form a transparent conductive film, so as to obtain an AZO glass, which can be arranged on a solar film cell and a flat-panel display. The prepared transparent conductive film has high conductivity, high transmittance, controllable haze and strong aging resistance capability.

The invention relates to an anti-pollution-flashover superhydrophobic paint, and a preparation method and application thereof, belonging to the field of paints. The preparation method comprises the following steps: (1) adding nano silicon dioxide particles into a polydimethylsiloxane-containing organic solvent until the nano silicon dioxide particles are uniformly dispersed, and volatilizing the organic solvent to obtain low-surface-energy nano silicon dioxide particles; and (2) adding the low-surface-energy nano silicon dioxide particles prepared in the step (1) and an adhesive into an organic solvent, and stirring to obtain the anti-pollution-flashover superhydrophobic paint. The method has the advantages of simple technical process, low facility requests, wide raw material sources and low cost. The prepared anti-pollution-flashover superhydrophobic paint has the advantages of excellent hydrophobicity, high aging resistance, favorable self-repair effect, high pollution flashover voltage and the like, and is used for external insulation protection of transmission equipment and transformer equipment in heavy-smog regions.