24results about How to "Improve self-cleaning" patented technology

The invention relates to the field of waterproof coatings, and discloses a tunnel macromolecular self-cleaning special waterproof coating which comprises polyurethane resin, epoxy resin, fluorosilicone resin, titanium dioxide nanoparticles, zinc oxide nanoparticles, aluminum triphosphate, silicon dioxide nanoparticles, aluminum oxide microparticles, graphene nanosheets, a flexibilizer, a curing accelerator and a solvent. According to the coating, collaborative optimization of functions of all layers is achieved through a multi-layer composite structure, the bottom layer waterproof layer provides efficient waterproofness and weather resistance, the middle reinforcing layer greatly improves the mechanical strength and wear resistance of the coating, the surface layer self-cleaning layer adopts a fluorosilicone resin matrix and introduces super-hydrophobic nano-particles, the surface is endowed with an excellent self-cleaning function, and the self-cleaning effect is good. Dirt adhesion is prevented; and automatic cleaning is facilitated. The coating effectively solves the common problems of leakage, pollution accumulation, abrasion and peeling in a tunnel environment, the protection performance of a coating is remarkably improved, the service life of the coating is remarkably prolonged, and an efficient and lasting protection solution is provided for building structures such as tunnels and subways.

The invention relates to the technical field of water-based paint, and discloses water-based paint containing modified polyurethane and a preparation method thereof.The modified polyurethane, silicon-containing benzoxazine, water-based acrylic resin, a polyether modified organic silicon defoaming agent, a propylene glycol film-forming agent and water are added into a stirrer and stirred, and the water-based paint containing the modified polyurethane is obtained after stirring is finished. The benzoxazine structure in the silicon-containing benzoxazine can form a heat-resistant phenolic resin structure at a high temperature, so that the water-based paint shows higher thermal decomposition temperature, and the benzoxazine structure is good in heat resistance and high in char forming property and has a better flame-retardant effect; wherein the fluorine element is introduced into the water-based paint, so that a smooth fluorine carbonization layer which is not easy to attach with an object can be formed on the surface of the water-based paint, and therefore, the water-based paint has a relatively good self-cleaning effect; the silicon element can absorb a large amount of heat when being heated, the temperature of the material is reduced, the combustion speed is slowed down, and the flame-retardant effect is achieved.

The invention belongs to the technical field of electrochemical engineering, and relates to a three-dimensional electrochemical reactor which comprises a reactor shell assembly, three-dimensional electrode modules, counter electrode modules, diaphragms or polymer partition plates and an external power supply, the counter electrode modules are arranged in pairs, and the three-dimensional electrode modules are clamped between the counter electrode modules arranged in pairs; the diaphragm or the polymer partition plate is clamped between the electrode surface of the counter electrode module and the electrode surface of the three-dimensional electrode module, and the three-dimensional electrode module, the counter electrode module and the diaphragm or the polymer partition plate are arranged in an inner cavity of the reactor shell assembly; according to the invention, the fluid can flow through the interior and surface of the three-dimensional electrode, and a main electrochemical reaction field is transferred to the interior and surface of the three-dimensional electrode, so that the sufficient flow and mixing of the fluid between the electrodes are ensured while the electrode spacing is shortened as far as possible, the solution resistance is reduced, the cell voltage is reduced, and the current efficiency is improved; and energy consumption increase and equipment damage caused by overhigh voltage are avoided.

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.

The invention relates to a cement-based material with a photocatalytic function, a coating, a casting body and a preparation method, the cement-based material with the photocatalytic function comprises cement-based dry powder, and the cement-based dry powder comprises, by weight, 1-1.5 parts of molybdenum disulfide nanoflowers and 9-19 parts of Portland cement. The preparation method has the beneficial effects that the molybdenum disulfide nanoflower is directly introduced into a cement-based material as a photocatalyst, so that the self-cleaning function and the dye degradation function of the material are increased, the hydration rate and the mechanical property of the cement are improved, and the cement is a green and sustainable building material. The preparation method of the cement-based material with the photocatalytic function is simple and efficient.

The invention relates to the technical field of brighteners, and discloses an environment-friendly tire brightener and a preparation method thereof.The environment-friendly tire brightener is obtained by adding waterborne silicone oil, polyurethane emulsion, water, nano-zinc oxide modified imidazoline and modified polyurethane into a stirrer and stirring. Aminated zinc oxide and imidazole groups in nano-zinc oxide modified imidazoline have a better self-cleaning effect and can effectively remove oil stains on the surface of a tire, and a polyphenylene sulfide structure in the nano-zinc oxide modified imidazoline also has better oil resistance, so that the surface of the tire does not adsorb oil, and better brightness is kept; after the chloromethylated polyphenylene sulfide reacts with the intermediate 1, the substitution degree of the polyphenylene sulfide is improved, and the oil-resistant effect of the tire is further improved. The fluorine element in the modified polyurethane is introduced into the tire brightener and is applied to the surface of a tire, so that a smooth fluorine carbonization layer which is not easy to adhere to an object is formed on the surface of the tire, and the tire brightener has a better self-cleaning effect.

The invention relates to the technical field of cables, and discloses a low-voltage cable with a self-cleaning function and a preparation method thereof.The low-voltage cable is prepared by adding an ethylene-propylene copolymer, polypropylene, amino-modified fluorosilane, epoxy nano-silicon dioxide, an antioxidant 1010 and modified phenolic resin into an internal mixer, mixing, extruding and molding. And carrying out hot press molding on the mixed material in a press vulcanizer to obtain the low-voltage cable with the self-cleaning function. In the banburying process, amino groups in the amino-modified fluorosilane, hydroxyl groups in the modified phenolic resin and epoxy groups in the epoxy nano silicon dioxide are subjected to ring-opening reaction, and a cross-linked network is formed among the amino groups and the hydroxyl groups, so that more cross-linked fulcrums exist, and the tensile property is better. A quaternary ammonium salt group contained in the amino-modified fluorosilane has a good self-cleaning function, and fluorine is introduced into the amino-modified fluorosilane, so that a smooth fluorine carbonization layer which is not easy to adhere to an object can be formed on the surface of the amino-modified fluorosilane, and therefore, the amino-modified fluorosilane also has a good self-cleaning effect.

The invention relates to the technical field of functional modified plastics, and provides a special self-cleaning ABS (Acrylonitrile Butadiene Styrene) composite modified material for a grater and a preparation method of the special self-cleaning ABS composite modified material. Comprising the following raw material components in parts by weight: 50-65 parts of ABS resin, 15-25 parts of glass fibers, 6-8 parts of ABS high glue powder, 5-8 parts of MBS resin, 5-6 parts of precipitated barium sulphate, 3-4 parts of polytetrafluoroethylene powder, 2-3 parts of nano SiO2, 1-2 parts of nano TiO2, 1-2 parts of nano ZnO, 0.5-1.5 parts of an auxiliary compatibilizer, 0.5-0.8 part of a glass fiber exposure prevention agent, 0.3-0.5 part of silicone master batch, 0.3-0.5 part of an antioxidant and 0-2 parts of color master batch. The nanometer material and polytetrafluoroethylene are pre-dispersed through the high rubber powder, so that efficient dispersion of the nanometer material in the ABS is realized; the self-cleaning property of the ABS composite modified material is improved by the nano material cooperating with polytetrafluoroethylene and silicone master batch; the hydrophobic and oleophobic effects are obvious.

The application belongs to the technical field of industrial coatings, and discloses a preparation process of self-cleaning FEVE varnish. The preparation process of the self-cleaning FEVE varnish comprises the following steps: (1) preparing a protective latex emulsion; (2) adding a wetting agent and a defoaming agent; (3) adding a composite sol; (4) adding FEVE resin, then adding a curing agent, and preparing the self-cleaning FEVE varnish after aging. The self-cleaning FEVE varnish prepared by the preparation process of the self-cleaning FEVE varnish has excellent adhesion, high weather resistance and good self-cleaning performance, and can be widely applied to building outer walls, transportation equipment, ocean facilities, urban public facilities and the like.

The present invention relates to the field of glass technology, and in particular to a glass with a surface easy-to-clean function and a preparation method thereof, comprising the following steps: cleaning treatment with a cleaning agent: adjusting the working air pressure of a polishing machine to 0.5 MPa, holding a pressing handle with the right hand and an auxiliary handle with the left hand, so that the polishing machine sponge and the easy-to-clean surface of the glass are in a vertical state; then pressing the air source key of the pressing handle, polishing each piece of glass 7-10 times, with a rotation speed of 2500-3000 rpm. The glass with the easy-to-clean function of the present invention adopts a water ultrasonic cleaning treatment for the glass body first, and then is coated with an easy-to-clean coating, and the additives added to the easy-to-clean coating adopt bisphenol A epoxy resin, acetone solvent, acrylic emulsion, self-cleaning modifier, and curing agent to be adjusted and improved, and the self-cleaning modifier and nano-silicon dioxide regulator are coordinated and coordinated to enhance the effect together, and the product has a significant effect on the easy-to-clean functional effect of the glass, and the product has obvious acid and alkali resistance and scratch resistance stability.

The invention relates to the technical field of high polymer materials, and discloses degradable disposable tableware and a preparation method thereof.The preparation method includes the steps that bamboo fibers, chitosan, nano-silicon dioxide, polyvinyl alcohol, Arabic gum, rice hull powder, epoxy group modified silane, modified carbon nanotubes and water are stirred and mixed to obtain mixed slurry, the mixed slurry is injected into a mold, and the degradable disposable tableware is obtained. And after hot pressing and molding, demolding, taking down and drying a demolded finished product, trimming, deburring and disinfecting to obtain the degradable disposable tableware. Polylactic acid and siloxane groups in the tableware have a good self-cleaning effect, the self-cleaning performance of the tableware is improved when the tableware is applied to the tableware, meanwhile, after carboxyl polylactic acid reacts with hydroxylated silane, the substitution degree of polylactic acid is improved, the self-cleaning effect of polylactic acid is further improved, and the disposable tableware also has a good degradation rate and mechanical properties.

The utility model discloses an all-terrain tire, and relates to the technical field of tires, a tire tread is provided with a tread pattern structure, the tread pattern structure is distributed in a central symmetry manner, the tread pattern structure comprises a pattern block main body, a beveled chamfer and a pattern groove, and the pattern block main body is connected to the tire tread; the beveled chamfer is arranged on the edge of the pattern block main body along the annular direction; the pattern grooves are formed in the surface of the pattern block body, and the bottoms of the pattern grooves are arranged to be transition arcs. The beveled chamfer of the pattern block main body is utilized to ensure that the all-terrain tire has excellent silt and stone self-cleaning performance on a field complex road surface, the transition circular arc of the pattern groove is utilized to reduce the problem of groove crack at the bottom of the pattern groove, the tear resistance, impact resistance and puncture resistance of the pattern block main body are improved, and the service life of the all-terrain tire is prolonged. Therefore, the trafficability, durability and safety of the all-terrain tire under various complex road conditions can be improved.

The invention relates to the technical field of solid gum, and discloses solid gum applied to a mirror and a preparation method thereof.The solid gum applied to the mirror is obtained by adding acrylic resin, sulfur-containing polyurethane, fluorine-modified sulfaguanidine, epoxy nano-silica, polyvinylpyrrolidone, glycerol and deionized water into a stirrer and stirring. A sulfur element, a phosphorus element, guanidyl and a sulfur element in the sulfur-containing polyurethane and the fluorine-modified sulfaguanidine have a relatively good flame-retardant effect and jointly form a flame-retardant system; a quaternary ammonium salt group contained in the antibacterial agent has a relatively good antibacterial effect; the fluorine element in the solid gum can enable the surface of the solid gum to form a smooth fluorine carbonization layer which is not easy to attach with an object, so that the solid gum also has a better self-cleaning effect; and meanwhile, the material also has better mechanical properties.

The application discloses a kind of ancient ship rotten wood protection repair method, for the pine, fir, camphor wood on ancient ship, after the oxidation-reduction reaction of iron and the oxidation of reduced state sulfur, cause the degradation and rotten of wood, with micro-nano lime and ethyl cellulose deacidification reinforcement;For the crack and incomplete parts of ancient ship, make into imitation wood grain paste with tung oil etc. and fill the vacancy;For broken wood block, make into rotten wood adhesive with tung oil etc. and bond;For the ancient ship protection after repair, use fluorine rubber as sealing agent, provide a good environment for cultural relics, achieve waterproof, mildewproof, insect prevention and other effects.The method of the application replaces the traditional polyethylene glycol penetration spray method, rosin paraffin hot infiltration method, polyvinyl alcohol, polyethylene glycol penetration reinforcement, spraying raw tung oil, raw lacquer, B72 and epoxy resin and other protection methods, and uses fluorine rubber as ancient ship sealing agent, achieves the purpose of traditional and modern material combination of cultural relic protection "repairing old as old, minimal intervention".

The invention relates to a noctilucent warning anti-electric shock coating as well as a preparation method and application thereof. The noctilucent warning anti-electric shock coating comprises acrylic resin and microspheres loaded with long afterglow powder, the microspheres loaded with the long afterglow powder are formed by coating the long afterglow powder with an eutectic formed by poly-L-lactic acid and poly-D-lactic acid. The noctilucent warning anti-electric shock coating disclosed by the invention not only can endow a high-altitude transmission conductor with night visibility and play a role in preventing mistaken touch, but also has certain electrical insulating property, can further reduce the risk of electric shock, and has relatively high practicability.

The utility model relates to the technical field of RO (reverse osmosis) membrane non-stale water treatment, in particular to an RO membrane non-stale water treatment device which comprises a water inlet pipe, a motor and a water inlet valve are mounted on the water inlet pipe, one end of the water inlet pipe is communicated with an RO membrane, the lower end of the RO membrane is communicated with an RO membrane water outlet and an RO membrane heavy water port, a first one-way valve is arranged at the lower end of the RO membrane heavy water port, and a second one-way valve is arranged at the lower end of the RO membrane heavy water port. A manual valve is arranged at the lower end of the first one-way valve, a second one-way valve and a drainage electromagnetic valve are arranged at the lower end of the RO membrane water outlet, and the manual valve and the drainage electromagnetic valve are jointly provided with a waste water pipe.

The utility model discloses an outdoor LED court lighting lamp capable of being flexibly combined, which comprises an LED lamp body and an adjusting slide rail, the adjusting slide rail is connected to the top of the LED lamp body, and the top of the LED lamp body is movably connected with a connecting arm; and the telescopic supporting rod is installed at the top of the connecting arm, an output rod is arranged at the bottom of the telescopic supporting rod, and one end of the telescopic supporting rod is in threaded connection with a locking rotary knob matched with the output rod. By arranging the adjusting sliding rail and the connecting arm, flexible adjustment and combination of the LED lamp body are achieved. The adjusting sliding rail is connected to the top of the LED lamp body, and the connecting arm is movably connected with the LED lamp body through the damping rotating shaft, so that each LED lamp body can freely slide and be positioned on the adjusting sliding rail. In this way, installation and adjustment of the lamps are facilitated, the number and positions of the lamps can be flexibly combined according to actual lighting requirements, and the adaptability and flexibility of the lighting system are greatly improved.

The application relates to the technical field of traffic safety, in particular to a high-weather-resistance reflective film and a manufacturing method thereof. The high-weather-resistance reflective film comprises a PET film, a reflective adhesive layer coated on the surface of the PET film, and a silicone coating layer coated on the surface of the adhesive layer; the reflective adhesive layer is formed by uniformly scattering glass beads on the surface of the PET film after the adhesive material is coated on the surface of the PET film; the raw material of the adhesive material comprises, by mass fraction, 50-150 parts of a hydroxyl-containing acrylate resin, 5-12 parts of an IPDI prepolymer, 1-2 parts of UV329 ultraviolet absorber, and 0.5-1.5 parts of anti-aging agent 1076. The reflective film has excellent self-cleaning performance, good reflectivity, long-term stable weather resistance, can effectively reflect incident light, effectively protects the reflective glass beads, can maintain the performance for a long time under various environments and conditions, and is suitable for being used as a traffic sign.

The invention discloses an anti-dazzle multi-reflection high-efficiency light guide system, which relates to the technical field of lighting lamps and comprises a light source assembly connected to one side of a light guide device and used for emitting a light source towards the light guide device; the light guide device is provided with a plurality of light guide cavities which are arranged in a rectangular array; a first light guide area and a second light guide area which are oppositely arranged along the side part and a third light guide area arranged along the bottom are arranged in the light guide cavity; the first light guide area is provided with a first light guide curved surface, and the second light guide area is provided with a second light guide curved surface; the third light guide area is provided with a light outlet hole communicated with the light source assembly and an M-shaped light guide body arranged on the peripheral side of the light outlet hole in a protruding mode. A light guide surface is formed on the outer side of the M-shaped light guide body, can be used for shunting and guiding light output by the light outlet hole, and is matched with the first light guide curved surface and the second light guide curved surface, so that the light is subjected to multiple reflection to form three-direction crossed emission; spill light and backlight are shielded, and the luminous flux of the lamp can be uniformly and effectively focused on a road to the maximum extent according to road condition requirements.

This application provides an ultrapure titanium dioxide, its preparation method, and its application. The method includes the following steps: S1: Dissolving an inorganic titanium source and a composite weakly polydentate dynamic coordination molecule in an inert organic solvent to obtain a composite precursor solution; wherein the composite weakly polydentate dynamic coordination molecule contains two or more reversible coordination functional groups; S2: Adding water to the composite precursor solution to form a titanium-oxygen network precursor; S3: Performing solvothermal treatment on the titanium-oxygen network precursor to induce crystallization, obtaining a crystallization intermediate; S4: Performing a two-stage heat treatment on the crystallization intermediate to obtain ultrapure titanium dioxide. Through the above method, titanium dioxide materials with both ultra-high purity and strong photocatalytic activity can be prepared without relying on external ion doping or unstable post-reduction treatment.

The invention relates to a method for protecting concrete, in particular to a method for integrally protecting concrete through internal and external cooperation. The invention aims to solve the technical problems that the performance of the conventional concrete material is gradually degraded and even the structural failure is caused because the conventional concrete material is eroded and damaged by various complex environments. The invention provides a method for integrally protecting concrete through internal and external synergism, which is realized through innovation in two aspects: firstly, the compactness and the strength of the concrete are remarkably improved through a special surface treatment process by utilizing combination of a reinforcement body and cement; and secondly, micro and nano double coarse structures are sequentially constructed on the surface of the concrete by adopting a super-hydrophobic anti-corrosion coating technology, so that an efficient super-hydrophobic layer is formed. The method provided by the invention effectively resists the erosion of the external environment, solves the problems of concrete carbonization, sulfate erosion, steel bar corrosion and the like, and provides a high-performance and long-life concrete material solution for the field of civil engineering.

The invention relates to the technical field of ceramic materials and preparation, in particular to a domestic ceramic product and a preparation method thereof, and the preparation method comprises a green body preparation process, a glaze preparation process and a sintering process. Red quartz, feldspar and other natural minerals are preferably selected as raw materials of a green body, magnesium oxide and zinc oxide are introduced into a glaze formula, and the ceramic is endowed with excellent antibacterial performance and self-cleaning capacity. According to the ceramic product and the preparation method thereof, optimized ball milling time and filter-pressing rolling forming, drying and firing processes are combined, the compactness of a green body and the glossiness of a glaze surface are improved, meanwhile, the production cost is reduced, the invention further provides improvement measures for attractiveness, durability and environmental protection, and the ceramic product is suitable for the fields of tableware, kitchen utensils and the like and has a wide market prospect.

The invention discloses a rainproof plenum chamber capable of replacing an air inlet vertical shaft, and belongs to the technical field of constructional engineering design. The rainproof static pressure box comprises a static pressure box body, an air pipe connector, a rotary shutter, a water vapor blocking shutter, a water collecting tank and a drainage pipeline. The front end of the plenum chamber is an open end, the rotating shutter is installed at the rear end of the plenum chamber, the water vapor blocking shutter is installed in the middle of the plenum chamber, the air pipe connector is fixedly connected to the rear end face of the plenum chamber, a water collecting groove is formed in the bottom of the front end of the plenum chamber, and the bottom face of the plenum chamber inclines towards one side of the water collecting groove; the static pressure box is correspondingly installed on the inner side of the rainproof shutter through the open end of the static pressure box, one end of the drainage pipeline is communicated with the water collecting tank, and the other end of the drainage pipeline penetrates through the wall and is led to the outside. By adding the design measures of preventing water from entering the static pressure box and rapidly dredging entering rainwater, the probability that the rainwater enters the pipeline can be reduced, the equipment safety is improved, and the building guarantee reliability is improved.