46results about How to "Improve pollution resistance" patented technology

The present invention includes a cooking appliance with an enamel composition. The enamel composition includes a heat resistance, chemical resistance, wear resistance, and pollution resistance, such that the cooking appliance withstands high temperature, acid or alkali and is readily cleaned.

The invention relates to a nano interior wall coating; the composition by the weight percent is as follows: 35 percent to 45 percent of film-forming material, 28 percent to 42 percent of pigment and filler, 4 percent to 7 percent of assistant, 0.6 percent to 1.2 percent of nano powdery material, 1.0 percent to 2.0 percent of water-soluble nano silica sol, and 10 percent to 30 percent of deionized water. The film-forming material can be styrene-acrylic latex or acrylic latex; the pigment and filler is one or more than one type among rutile titanium dioxide powder, calcined kaolin, heavy calcium carbonate and super-fine aluminum silicate; the assistant comprises one or more than one type among dispersant, wetting agent, foam killer, preservative, thickener, anti-freezing agent, ph regulator and film-forming assistant. The coating of the invention can continuously release negative ions under the radiation of a fluorescent lamp, and can effectively degrade the dissociative TVOC and formaldehyde content in the air; the washing resistant times reaches 20000 to 50000 times, and the manual aging resistance reaches more than 1000 hours. In addition, the coating saves the consumption of nano powdery material and reduces the production cost.

The present invention discloses a pure dry composite housing high-voltage sleeve and its production method. Its main insulating layer is a multilayer series-connected pure solie concentric ylinder insulating layer made up by at least using two kind of solid layers which are spaced and tightly combined, the insulating housing and connecting sleeve are tightly connected with external side of main insulating layer. The production method includes the following steps: using peoxy glass fibre wet winding-forming process to make semi-conductor band and glass fibre material coated with epoxy resin wind round the conducting bar according to sinesoid law to make main insulating layer, solidifying and surface processing, fixing connecting sleeve, mounting insulating housing, equalizing cover and wiring terminal, it contains no any oil or gas, can prevent leakage of oil and gas and explosion hidden peril, and its weight is light and small in volume, and cost is low.

The invention relates to a compound material pole tower. A main body of the pole tower adopts a compound material; a main connecting part adopts compound material or galvanized steel; a lead cross armadopts a compound insulator; a ground lead cross arm adopts galvanized steel; a downlead cross arm adopts galvanized steel adopts galvanized steel; a grounding downlead adopts wires and bars; the upper end of the grounding downlead is fixed on the grounding wire cross arm, is led from leads at the outside of one side or two sides of the pole tower, is fixed on the downlead cross arm to lead the grounding downlead and the lead to keep fixed distance, and is grounded from the downlead cross arm along the tower body. Compared with the conventional 110kV iron tower, the compound material pole tower greatly increases phase-earth and interphase air gaps and insulating creepage distance of a tower head, greatly improves pollution flashover resistance, ice flashover resistance, windage yaw prevention and lightning-resistant level, also can compress the size of the tower head, and has the advantages of reducing the cost as well as expenses for transportation, installation and maintenance of the pole tower body and simultaneously reducing the width of a line corridor.

The invention relates to an ultrafiltration and microfiltration membrane assembly for a tubular composite membrane, relating to the filtering element for water treatment. The ultrafiltration and microfiltration membrane assembly for the tubular composite membrane comprises a tubular machine shell with the ellipse heads which are symmetrically arranged at both ends and fastened by a strap. The centers of the two ellipse heads penetrate through a perforated central tube. A drain plug is arranged in the middle section of the perforated central tube and the ellipse heads are provided with a concentrated water outlet, an original water inlet and a purified water outlet, respectively. Multilayer membranous tubes with different inner and outer diameters are arranged areally on the circumference of the perforated central tube. The shell material of the tubular membrane assembly is polyvinyl chloride (PVC) or glass steel and the inner diameter of the membranous tubes is 5-20mm while the outer diameter thereof is 10-30mm. The membranous tubes consist of a basic membrane and a surface membrane, wherein the basic membrane material is sintered by using ultrahigh molecular weight polyethylene (UHMW-PE), and the material of the surface membrane filtering layer is polyvinylidene fluoride (PVDF), polyacrylonitrile (PAN) and polyvinyl acetate (PVA). The ultrafiltration and microfiltration membrane assembly can be matched with other pipelines, valves, instruments to form an ultrafiltration and microfiltration set for membrane engineering and has the characteristics of high strength, pollution resistance, fouling resisting property, short process flow, rapid online backwash-regeneration, long service life and the like.

The invention relates to the technical field of film separation materials and in particular relates to a multi-channel pure silicon carbide film with an asymmetric structure and a preparation method for the multi-channel pure silicon carbide film. The multi-channel pure silicon carbide film with the asymmetric structure consists of pure silicon carbide, is formed by sintering silicon carbide particles with the particle size of 0.1-100 microns and has a three-dimensional communicated gap structure; ducts form the asymmetric structure according to the sizes from small to large in the filtering direction; the aperture ratio of the film is 32-60 percent; the filtering characterization aperture range is ranged from 10-1,000nm; the film material has a tubular multi-channel structure and is formed by performing sintering for 2-4 times; a film base material is combined with a new silicon carbide in a sintering manner, which is formed by performing cracking reaction on a filtering layer serving as a silicon carbide precursor through an adhesive, and the sintering temperature is 700-1,400 DEG C. The obtained silicon carbide film has the characteristics of high filtering precision, high purity, high porosity, high intensity, large flux and long service life; the preparation method has the advantages of flexibility in control, low energy consumption, readily availability of raw materials, easiness in forming and suitability for industrial customization and can meet large-scale production.

The invention relates to a nano exterior wall coating; the composition by the weight percent is as follows: 40 percent to 50 percent of film-forming latex, 26 percent to 38 percent of pigment and filler, 4 percent to 8 percent of assistant, 0.3 percent to 1 percent of nano powdery material, 1.0 percent to 3.0 percent of water-soluble nano silica sol, and 10 percent to 30 percent of deionized water. The film-forming material can be acrylic latex or pure siloxane-acrylate latex; the pigment and filler is one or more than one type among titanium white powder, mica powder, barium sulfate and aluminum silicate; the assistant comprises one or more than one type among dispersant, wetting agent, foam killer, preservative, thickener, anti-freezing agent, ph regulator and film-forming assistant. The coating of the invention can be washed and brushed for 50000 times without breakage, resist manual climate aging for 1000 times without bubbling, peeling and crackling, has obvious mildew resistant effect and can effectively prevent mildew after being stored and coated on the wall.

The invention discloses a nano oxide wrapped mica iron oxide anti-rust pigment which is a composite anti-rust pigment formed by wrapping nano oxide on mica iron oxide. The weight ratio of the nano oxide to the mica iron oxide is (1-10):100; the preparation method comprises the following steps of: slowly adding a titanyl sulfate and / or zinc sulfate solution into a mica iron oxide solution, stirring and reacting, adding calcium hydroxide and / or calcium oxide into the reaction system while stirring, so as to generate nano titanium dioxide and / or nano-zinc oxide to be wrapped on the surface of the mica iron oxide; and filtering the reaction solution and drying the filter cake so as to obtain the nano oxide wrapped mica iron oxide anti-rust pigment. The invention provides a metal anti-rust pigment with excellent property, low cost and competitive advantages when being compared with similar products in China and other countries.

The invention discloses a grounding method for a composite insulating pole tower of a power transmission line and a pole tower thereof. The pole tower main body adopts a composite tube, a conductor cross arm adopts a composite insulator, a ground wire cross arm adopts a metal conductor, a grounding down-lead adopts a metal wire or a tube or a bar, the grounding down-lead is suspended from the middle of the tube and is led down to be grounded, the ground wire cross arm and the conductor cross arm are provided with metal electrodes, and the proper part of the pole tower is perforated for arranging the grounding down-lead to lead out the electrodes; and the air gap distance between the ground wire side electrode and the conductor side electrode and the air gap distance between the leading-out electrode of the grounding down-lead and the conductor can be determined according to the lightning protection requirement. The grounding mode of the composite pole tower effectively utilizes the insulating property of a composite pole, can improve the pollution flashover and ice flashover resistance, wind deflection prevention and lightning protection level of the line, can also compress the size of a tower head, and has the advantages of reducing the manufacturing cost and the transportation, assembly and maintenance expenses of the pole tower main body and reducing corridor width of the line at the same time.

The invention relates to the technical field of building materials, in particular to an integrated plate integrating the functions of heat preservation, fire prevention and decoration. The integrated plate comprises a polyurethane layer, a foam ceramic layer and a decoration layer. The polyurethane layer and the decoration layer are arranged on the back face and the front face of the foam ceramic layer respectively. The polyurethane layer is made of hard polyurethane. The decoration layer is a glaze layer. An aerogel coating layer can further be arranged between the foam ceramic layer and the decoration layer. The decoration layer can aim at protecting finishing coat or comprises a primer layer and a middle paint layer and protects a finishing coat layer or only comprises the primer layer and protects the finishing coat layer.

The invention provides a model-based method for electro-hydraulic proportional loading and belongs to the technical field of hydraulic loading technology and automation. The method comprises the following steps: pre-establishing conversion relations between the control current and the pressure of a hydraulic proportion valve at different flow rates, namely models; and selecting a corresponding model according to the actual flow rate to complete the pressure control of the proportion valve. As the different models are adopted under different conditions, the control accuracy is improved greatly. As the established models possibly have certain errors, a feedback compensation process is adopted to eliminate the errors in the models. As a result, the pressure control accuracy of the electro-hydraulic proportional valve is improved, the response time is reduced, and the requirements on pressure, force or torque loading are met.

The invention discloses a powder decoration coating and preparation and construction methods thereof, and belongs to the technical field of coatings. The powder decoration coating comprises raw materials in parts by weight as follows: 40-70 parts of shell powder of 1,000-2,000 meshes, 10-30 parts of a powder functional material, 2-10 parts of dispersible gelatin powder and / or a silicate cross-linked substance, 1-5 parts of sepiolite short-fibers and 5-30 parts of colorful composite rock slices. The powder decoration coating is prepared from the shell powder calcinated at the temperature of 300 DEG C, the powder functional filler, the colorful composite rock slices, the powder cross-linked substance and functional additives through blending, the shell powder calcinated at the temperature of 300 DEG C is taken as a main material, and the powder decoration coating is good in breathability, anti-condensation, scrubbing-resistant, pollution-resistant, anti-bacterial, mould-proof and non-inflammable and has a green and environment-friendly inorganic system and a colorful decoration effect.

The nano wall paint consists of filming material, stuffing, pigment, nano material and assistant and is prepared through conventional paint compounding process. Specifically, the material includes filming material 20-50 wt%, pigment and stuffing 15-45 wt%, assistant 1.0-5 wt%, nano material 0.2-2.0 wt%, water soluble micrographic carrier material 1.0-3.0 wt% and water 15-50 wt%. Owing to the water soluble micrographic carrier material and the nano material of particle size of 10-40 nm, the wall paint has high antifouling, antiageing and antibiotic performance, has water resistance over 20000-45000 times, artificial ageing resistance over 1000 hr and lowered nano material use amount and thus lowered production cost.

The invention relates to a preparation method of a UHMWPE (Ultrahigh Molecular Weight Polyethylene) hollow fiber membrane. The method comprises the following steps of: based on a developed thermally induced phase method film forming mechanism, mixing and fusing raw materials by adopting a double-screw-rod extruder; metering by a gear pump; extruding by a spinneret plate; and carrying out procedures of cooling, winding, extracting, stretching, sizing and the like to finally prepare the UHMWPE hollow fiber membrane. According to the preparation method disclosed by the invention, high-temperature-resisting amphiphilic copolymers, such as an ethylene-vinyl alcohol copolymer (EVOH), a PE-PEO (Polyethylene-Polyoxyethylene) copolymer, an ethylene-acrylic copolymer (EAA) and an PE-PEG (Polyethylene-Poly Ethylene Glycol) copolymer, are added into the raw materials, so as to realize the permanent hydrophily of a membrane wire; the pollution resistance of the membrane wire is lasting and the service life of the membrane wire is greatly prolonged; and an oil-free and anhydrous air flow is adopted to form an inner cavity of the membrane wire, so that the problems that the recycling load of a solvent is great and the consumed amount of the solvent is great in a production process of the UHMWPE hollow fiber membrane by a thermally induced phase method are solved.

The invention provides a stone surface crystallization UV photocurable coating, a method for preparing the same and a construction process. The stone surface crystallization UV photocurable coating comprises the following components: aliphatic polyurethane acrylate, trifunctional aliphatic polyurethane acrylate, thermoplastic acrylic resin, trimethylolpropane triacrylate, dipentaerythritol pentaacrylate, 1-hydroxy-cyclohexyl phenyl ketone, a photoinitiator, ethyl acetate, a leveling agent, a defoaming agent, butyl acetate and toluene. When the coating is used for the surface crystallization protection treatment of stones, because the photocurable technique is adopted, the film forming efficiency is 20 to 23 seconds, so that the film can be quickly formed in high efficiency, and the surface of the stones, on which the film is formed, is high in hardness, glossiness and saturation; and the coating can also improve chemicals resistant, acid resistant, alkali resistant, pollution resistant, heat resistant, ironing resistant, smoke and fire resistant, aging resistant properties and the like of the surface of the stones.

The invention relates to the technical field of lubricant oil separation membranes, in particular to an anti-pollution ceramic membrane for separating waste lubricant oil and a preparation method. The preparation method of the anti-pollution ceramic membrane for separating the waste lubricant oil comprises steps as follows: (1) titania supported kaolin catalyst powder is prepared; (2) the catalyst powder is applied to a substrate with a laser coating method; (3) eletrochemical deposition of calcium phosphate is performed on the substrate. Kaolin is subjected to doping treatment to be endowed with photocatalytic performance and coats the surface of a conventional membrane with a laser deposition method, and calcium phosphate is deposited on the surface of kaolin to reduce defects of kaolin; due to the fact that calcium phosphate and kaolin have good compatibility, kaolin can be subjected to laser repair, lattice imperfection of kaolin is made up for, and the anti-pollution capacity of a membrane surface of the ceramic membrane is improved in the filtering process by adsorption and photocatalytic degradation characters of organic matter inside.

The invention discloses a water-based weather-resistant self-cleaning coating and a preparation method and application thereof. The water-based weather-resistant self-cleaning coating is prepared from the following raw materials: water, cellulose, a dispersing agent, a wetting agent, an anti-freezing agent, a coalescing agent, nano titanium dioxide, titanium dioxide, kaolin, coarse whiting, water-based fluorocarbon emulsion resin, a defoaming agent, a flatting agent and a thickening agent. According to the water-based weather-resistant self-cleaning coating provided by the invention, through mutual cooperation of the raw materials, not only can the self-cleaning effect be achieved, but also the anti-sagging property and anti-skinning property of a coating film as well as the characteristics of temperature change resistance, corrosion resistance, pollution resistance and the like of a coating layer can be improved.

The invention discloses liquid silicone rubber for a ceramic insulator coating and a preparation method thereof. The liquid silicone rubber is prepared from the following raw materials in parts by weight: 30-70 parts of liquid MQ silicon resin, 5-40 parts of precipitated white carbon black, 10-50 parts of magnesium carbonate, 1-10 parts of hydrogen-containing silicone oil, 0.1-5 parts of an alkoxy silane coupling agent, 0.1-0.3 parts of a platinum inhibitor and 0.1-0.3 parts of a platinum catalyst. By introducing the MQ silicon resin, the mechanical strength and high temperature resistance of the liquid silicone rubber are improved, and the flame retardance of the liquid silicone rubber is remarkably improved through the synergistic effect of the MQ silicon resin and the flame-retardant filler, so that the pollution flashover resistance and tracking resistance of the liquid silicone rubber applied to a ceramic insulator coating are improved. The liquid silicone rubber disclosed by the invention has excellent tracking resistance and flame retardance, has good adhesiveness, hydrophobicity and aging resistance, and can meet the requirements of a ceramic insulator on the durability and tracking resistance of a silicone rubber coating.

The invention relates to artificial stone, which is prepared from the following components in parts by weight: 80 to 93 parts of white cement, 12 to 18 parts of unsaturated resin, 24 to 28 parts of silicon powder, 0.08 to 0.8 part of curing agent, 11 to 22 parts of metakaolin, 0.4 to 0.96 part of accelerant, 34 to 45 parts of silica fume, 40 to 46 parts of powdery filler, 41 to 53 parts of water,60 to 66 parts of natural stone particles, 6 to 9 parts of water reducing agent, 23 to 43 parts of hollow glass microbeads, 3 to 5 parts of pigments, and 2 to 3 parts of dye. The artificial stone provided by the invention has the advantages that due to the adding of the larger-particle natural stone, the usage of a lot of unsaturated resin is reduced, so that the product cost is reduced; the natural stone has a lot of natural colors, so that the usage of part of pigment and the labor cost caused by manufacturing artificial stone color particles are saved for color matching. The artificial stone provided by the invention is simple to process and low in cost.

The invention relates to a fireproof artificial stone. The fireproof artificial stone is prepared from the following components in parts by weight: 80 to 93 parts of white cement, 66 to 73 parts of resin, 24 to 28 parts of silica powder, 32 to 34 parts of fireproof particle filler, 11 to 22 parts of metakaolin, 6 to 7 parts of a coupling agent, 34 to 45 parts of silicon ash, 4 to 7 parts of an accelerant, 41 to 53 parts of water, 3 to 6 parts of lignin, 6 to 9 parts of a water reducing agent, 23 to 43 parts of hollow glass microspheres, 3 to 5 parts of a pigment and 2 to 3 parts of a dyestuff.The fireproof artificial stone provided by the invention has the advantages that the fireproof artificial stone is firm and durable and has good fireproof effect and utilization effect.

The invention relates to stone surface crystallization ultraviolet photocurable coating. The stone surface crystallization ultraviolet photocurable coating is prepared from the following raw materials in parts by weight: 30 to 35 parts of bisphenol A epoxy acrylate, 30 to 35 parts of polyester acrylate, 12 to 15 parts of trimethylolpropane triacrylate, 5 to 7 parts of dipentaerythritol hexaacrylate, 4 to 5 parts of 1-hydroxyl cyclohexyl phenyl ketone, 10 to 12 parts of ethyl acetate, 4 to 5 parts of cycloalkane dicarboxylic acid monoester, 2 to 3 parts of styrene, 1 to 2 parts of p-phenylene diamine, 1 to 2 parts of antioxidant 1010, 3 to 4 parts of methyl acrylate, 1 to 2 parts of crosslinking agent TAIC and 4 to 5 parts of dispersing aid. The coating provided by the invention is applied to stone surface crystallization treatment, so that a film can be formed quickly, and the stone surface after film formation has high hardness, high glossiness and good fullness. The coating also can improve the chemical resistance, the acid resistance, the alkali resistance, the pollution resistance, the heat resistance, the scalding resistance, the fireworks resistance, the ageing resistance and the like of the stone surface. The dispersing aid is used, so that the leveling property, the film-forming property and the caking property are improved and the process is simple and convenient.

The invention relates to a compound material pole tower. A main body of the pole tower adopts a compound material; a main connecting part adopts compound material or galvanized steel; a lead cross arm adopts a compound insulator; a ground lead cross arm adopts galvanized steel; a downlead cross arm adopts galvanized steel adopts galvanized steel; a grounding downlead adopts wires and bars; the upper end of the grounding downlead is fixed on the grounding wire cross arm, is led from leads at the outside of one side or two sides of the pole tower, is fixed on the downlead cross arm to lead the grounding downlead and the lead to keep fixed distance, and is grounded from the downlead cross arm along the tower body. Compared with the conventional 110kV iron tower, the compound material pole tower greatly increases phase-earth and interphase air gaps and insulating creepage distance of a tower head, greatly improves pollution flashover resistance, ice flashover resistance, windage yaw prevention and lightning-resistant level, also can compress the size of the tower head, and has the advantages of reducing the cost as well as expenses for transportation, installation and maintenance of the pole tower body and simultaneously reducing the width of a line corridor.

The invention relates to the technical field of lubricant oil separation membranes, in particular to an anti-pollution ceramic membrane for separating waste lubricant oil and a preparation method. The preparation method of the anti-pollution ceramic membrane for separating the waste lubricant oil comprises steps as follows: (1) titania supported kaolin catalyst powder is prepared; (2) the catalyst powder is applied to a substrate with a laser coating method; (3) eletrochemical deposition of calcium phosphate is performed on the substrate. Kaolin is subjected to doping treatment to be endowed with photocatalytic performance and coats the surface of a conventional membrane with a laser deposition method, and calcium phosphate is deposited on the surface of kaolin to reduce defects of kaolin; due to the fact that calcium phosphate and kaolin have good compatibility, kaolin can be subjected to laser repair, lattice imperfection of kaolin is made up for, and the anti-pollution capacity of a membrane surface of the ceramic membrane is improved in the filtering process by adsorption and photocatalytic degradation characters of organic matter inside.

The invention discloses a powder decoration coating and preparation and construction methods thereof, and belongs to the technical field of coatings. The powder decoration coating comprises raw materials in parts by weight as follows: 40-70 parts of shell powder of 1,000-2,000 meshes, 10-30 parts of a powder functional material, 2-10 parts of dispersible gelatin powder and / or a silicate cross-linked substance, 1-5 parts of sepiolite short-fibers and 5-30 parts of colorful composite rock slices. The powder decoration coating is prepared from the shell powder calcinated at the temperature of 300 DEG C, the powder functional filler, the colorful composite rock slices, the powder cross-linked substance and functional additives through blending, the shell powder calcinated at the temperature of 300 DEG C is taken as a main material, and the powder decoration coating is good in breathability, anti-condensation, scrubbing-resistant, pollution-resistant, anti-bacterial, mould-proof and non-inflammable and has a green and environment-friendly inorganic system and a colorful decoration effect.

The invention relates to a novel heat-reflection heat insulation coating with high pollution resistance and water resistance. The coating adopts such raw materials as water-based acrylic emulsion, titanium dioxide, colloidal silica, mica powder, high-brightness aluminum silicate, fluorine or silicone polymer stuffing, propylene glycol, a dispersing agent, a wetting agent, a rheological additive, an adhesive attraction accelerating agent, and a film coating additive. Through an optimal design for matching ratio of the raw materials, the prepared heat insulation coating has the characteristics of high water resistance, high pollution resistance, high reflectance, good uniformity and sedimentation resistance, obvious reflection and insulating effects and excellent comprehensive performance.

The invention relates to compression-resistant artificial stone. The compression-resistant artificial stone is prepared from the following components in parts by weight: 80 to 93 parts of white cement, 63 to 71 parts of resin, 24 to 28 parts of silicone dioxide powder, 17 to 21 parts of silicone powder, 11 to 22 parts of metakaolin, 3 to 4 parts of a coupling agent, 34 to 45 parts of silica fume,3 to 4 parts of emulsion adhesive, 41 to 53 parts of water, 3 to 4 parts of magnesium oxide, 6 to 9 parts of a water reducing agent, 23 to 43 parts of hollow glass micro-beads, 3 to 5 parts of pigment, and 23 to 43 parts of unsaturated resin. The compression-resistant artificial stone disclosed by the invention has the advantages of solidness, durability, good compression resistance, and good using effect.

The invention discloses a grounding method for a composite insulating pole tower of a power transmission line and a pole tower thereof. The pole tower main body adopts a composite tube, a conductor cross arm adopts a composite insulator, a ground wire cross arm adopts a metal conductor, a grounding down-lead adopts a metal wire or a tube or a bar, the grounding down-lead is suspended from the middle of the tube and is led down to be grounded, the ground wire cross arm and the conductor cross arm are provided with metal electrodes, and the proper part of the pole tower is perforated for arranging the grounding down-lead to lead out the electrodes; and the air gap distance between the ground wire side electrode and the conductor side electrode and the air gap distance between the leading-out electrode of the grounding down-lead and the conductor can be determined according to the lightning protection requirement. The grounding mode of the composite pole tower effectively utilizes the insulating property of a composite pole, can improve the pollution flashover and ice flashover resistance, wind deflection prevention and lightning protection level of the line, can also compress the size of a tower head, and has the advantages of reducing the manufacturing cost and the transportation, assembly and maintenance expenses of the pole tower main body and reducing corridor width of the line at the same time.