143results about How to "Pollution resistant" patented technology

The invention discloses a cellulose acetate/nano titanium dioxide mixed media hollow fiber positive osmotic membrane. 0.05-4.0% (w/w) of nano titanium dioxide and 0.01-1.0% (w/w) of oxidized graphene are added into a solution composed of N-methyl-pyrrolidone or dimethylacetamide or dimethylformamide and 1,4-dioxane, 3.0-21.0% (w/w) of additives is added, uniform stirring is carried out for 5-60min, then 15.0-40.0% (w/w) of cellulose acetate is added, full stirring is carried out at a temperature of 20-70 DEG C, the mixture is allowed to stand, and a hollow fiber positive osmotic membrane is obtained through spinning. The osmotic membrane employs 1M of NaCl as a drive liquid and deionized water as a raw material liquid, the water flux is 16.5L/m2h, the reverse salt flux is less than 3.5g/m2h, and the contact angle is 60.2 degrees in test time of 1h.

The invention discloses a construction method for reinforcing and repairing an integral wall of ancient architecture. The construction method comprises the steps of site survey and work preparation, wall foundation reinforcement, wall surface treatment, wall reinforcement and wall maintenance. The construction method is simple and easy to implement, scientific and convenient, and has the advantages of fast construction progress, low construction cost, high working efficiency and wide application range. According to the principle of 'repairing the old as the old', the cultural relic value of ancient architectural elements is kept, only damaged parts are repaired and reinforced, and the whole wall does not need to be replaced. The ancient architecture wall is priceless in cultural relic value. By using the method, original parts can be kept when the ancient architecture wall is damaged and loses bearing capacity, and a bearing function is recovered; the method conforms to the principle of 'repairing the old as the old', and is of great significance to the protection of the national cultural relics.

The invention discloses an ice coating prevention power transmission cable paint for a power transmission cable and a preparation method thereof. The ice coating prevention power transmission cable paint is prepared from nanoscale inorganic particles, a silane coupling agent, a wetting dispersant, a leveling agent, a thickener, fluorine-modified acrylic resin and a solvent; and by using the solvent as the base, the components are respectively 1 to 5 percent, 1 to 3 percent, 1 to 5 percent, 0.1 to 0.5 percent, 1 to 3 percent and 2 to 7 percent of the solvent in percentage by weight. The preparation method of the ice coating prevention paint for the power transmission cable comprises the following steps: firstly, uniformly dispersing the nanoscale inorganic particles, the silane coupling agent and the wetting dispersant into the solvent by utilizing mechanical stirring and ultrasound; then adding the leveling agent, the thickener and the fluorine-modified acrylic resin into the mixed solution; and uniformly dispersing each component by utilizing mechanical stirring and ultrasound. After the ice coating prevention paint for the power transmission cable is coated on the power transmission cable, the power transmission cable has functions of staining resistance and ice coating prevention.

The invention discloses a preparation method of a modified mesoporous silicon-aluminum material. The modified mesoporous silicon-aluminum material has a pseudo-boehmite physical structure. The anhydrous chemical formula of the material by the weight of oxides is (0-8)P2O5(0-0.1)Na2O*(20-30)SiO2*(70-80)Al2O3(0-1.0)RE2O3. The specific area is 200 to 500 m2/g, and the pore volume is 0.5 to 1.5 mL/g. The preparation method comprises the following steps: step one, adding a low-concentration aluminum source into a silicon source solution, controlling the pH in a range of 10.3 to 10.8, and carrying out stationary aging for 0.5 to 3 hours; step two, adding phosphor-aluminum gel and a high-concentration aluminum source into the previous solution according to a certain ratio, and controlling the pH in a range of 3.4 to 3.8; step three, adding a rare earth solution according to a certain ratio; step four, adjusting the pH of the previous slurry to 8.0-9.0 by an alkaline solution; step five, filtering the slurry, and washing the solids by deionized water and ammonium salt. The provided modified mesoporous silicon-aluminum material can be used as the carrier of FCC catalyst, has a proper pore volume and acidic property, and is capable of performing pre-cracking on macromolecular raw oil. RE2O3 exists in a deposited state of oxides and can prevent the metal pollution, so the provided material can improve the heavy oil cracking performance of FCC catalyst, moreover, the hydrothermal stability of FCC catalyst is good, and the coke selectivity is excellent.

The invention discloses a super-hydrophobic porous membrane as well as a preparation method thereof. A micro molding technology and a phase separation technology are combined, a membrane scraping bottom plate on which a membrane casting solution is scraped is placed in a water bath at the preset temperature for phase separation membrane formation, a formed membrane material is stripped, and the super-hydrophobic porous membrane is obtained. The membrane scraping bottom plate is a grooved soft template produced with a reverse mold process, the super-hydrophobic porous membrane produced throughthe grooved soft template comprises micron-size surface bulges which are consistent in size and arranged regularly, and the distance between adjacent surface bulges is micron-sized. The surface morphology of the membrane material is reconstructed, the super-hydrophobic porous membrane with multiple scales is prepared while additional modifiers are not added, and the super-hydrophobic porous membrane can be applied to a membrane distillation technology, has the advantages of high hydrophobicity, pollution resistance, wetting resistance and the like and thus has high salt resistance, and a novelmembrane production technology is provided for industrialization of membrane distillation and is low in cost and prone to mass production.

The invention relates to a sensor, in particular to a pressure detection sensor. The pressure detection sensor adopts the technical proposal that a connecting sleeve is arranged on a base. The pressure detection sensor is characterized in that a non-magnetic conductive elastic membrane is arranged on a joint of the base and the connecting sleeve; the upper part of the connecting sleeve is provided with an output cavity and the lower part of the connecting sleeve is provided with a collecting cavity; a linear programmable Hall device is arranged inside the output cavity; a magnetic steel which can be driven by the non-magnetic conductive elastic membrane to move up and down in the collecting cavity is arranged inside the collecting cavity; and the lower end of the magnetic steel contacts the non-magnetic conductive elastic membrane, and the upper part of the magnetic steel is provided with an elastomer which is used for making the lower end face of the magnetic steel contact the non-magnetic conductive elastic membrane. The pressure detection sensor can improve the reliability and the stability of the product.

The invention relates to the field of an indoor decorative material and specifically relates to a sanding-free high-pressure decorative panel for cladding and a production method thereof. The sanding-free high-pressure decorative panel comprises a sanding-free base plate and a decorative layer, wherein the decorative layer is arranged on the sanding-free base plate; the sanding-free base plate is made of kraft paper which is soaked in thermoset modified melamine resin and then coated with a sanding-free release agent on the back; the decorative layer is formed according to the steps of soaking the decorative paper in thermoset melamino-formaldehyde resins, drying and then coating the thermoset melamino-formaldehyde resins; the sanding-free base plate and the decorative layer are once molded and formed under the conditions of high temperature and high pressure. The decorative panel provided by the invention can be heated, coats an irregularly shaped wood substrate and then can be molded; sanding is not required; the sanding-free high-pressure decorative panel has the characteristic of bending radius less than or equal to 0.7mm, is fit for precision machining of decorative panel with radian requirements on later corner and edge sealing and has the advantages of fire resistance, water resistance, moisture resistance, dry heat resistance, impact resistance, pollution resistance, corrosion resistance, scraping resistance, ageing resistance, beautiful appearance, durability, high size stability, high bonding strength and zero pollution of organic solvents including benzene in paint.

The invention discloses a water-based pollution-resistant reflective thermal insulation coating and a preparation method thereof. The coating is prepared from an emulsion, nano-particles, polybenzimidazole, sodium tetraborate, hydroxyethyl cellulose, inorganic nonmetallic compounds, a reflecting material, a filling, a dispersing agent, a flexibilizer, a binder, glycol and deionized water. The preparation method comprises the steps of firstly mixing deionized water with the dispersing agent, heating in a warm water bath, sequentially adding the nano-particles, the inorganic nonmetallic compounds and a reflecting pigment, uniformly stirring, sequentially adding the emulsion, the hydroxyethyl cellulose, polybenzimidazole and sodium tetraborate, stirring, continuing to add the filling and glycol, finally adding the flexibilizer and the binder, and uniformly stirring. The coating disclosed by the invention has the properties of pollution resistance, high temperature resistance, reflectivity and the like as well as excellent adhesive force and scrubbing resistance, is high in tensile strength and elongation at break, good in decoration effect and low in construction cost and maintenance cost, and scars are unlikely to be formed; and the coating prepared from the environment-friendly raw materials is environmentally friendly and healthy.

The invention discloses a detection sensor and a detection method for an angle of a rocker arm of a coal cutter. The sensor includes a base, a base top cover and a rocking bar; the base is connected with a revolving shaft, and the rocking bar is fixedly connected with the revolving shaft; one end of the rocking bar that is not fixedly connected with the revolving shaft is connected with a connection base; the top of the revolving shaft is provided with circular magnetic steel; the top of the base top cover is connected with a sensor protective shell; an inner cavity of the sensor protective shell is a circuit board installation cavity and a sensor circuit board is installed in the circuit board installation cavity; the sensor circuit board is integrated with a sensor circuit; and the sensor circuit includes a microprocessor module, a power supply module, a communication module, an angle sensor, and a display module. The method includes the following steps: 1. installing the sensor; and2. detecting the angle of the rocker arm of the coal cutter. The sensor is novel and reasonable in design, is convenient to implement, is good in work stability and reliability, is strong in anti-interference capability, is high in detection precision, provides guarantee for realization of automatic height adjustment of the coal cutter, is strong in practicability, and is convenient for popularization and usage.

The invention discloses a silicon-abicin watercraft external wall emulsion paint that includes soft water 15-20%, carboxy modified starch 0.15-0.25%, organic amine 0.2-0.3%, ethylene glycol 1-1.5%, titanium dioxide 20-25%, polyacrylic acid silicone grease 30-40%, organic silicon 3-5%, calcined kaolin 4-8%, mica powder 8-10%, and coarse whiting 5-6%. The invention has advantage of water resistance, alkali resistance, pollution resistance feature and could be fully washed.

The invention discloses a gravure printing and plate making method for decorative paper, wherein a plate roller for making patterns with depth of 6.0-8.0 microns is used for printing negative patterns with a matte paint and printing positive patetrns with a bright paint; and a coherent and incoherent method is adopted according to characteristics of the patterns. According to the gravure printing and plate making method for the decorative paper, after printing is finished, because of diffuse reflection of light rays in the matte paint, some characteristic parts, such as a duct, scarred joints and cracks in wooden patterns look deeper; however, because the bright paint has mirror reflection to the light rays, the other parts of the wooden patterns look brighter and more outstanding and a dual stereo effect in vision and touch are reflected; thus, decorative attractiveness of a stereo effect of a finished product is increased and a highly-emulational purpose of the decorative paper is achieved; due to adoption of a dual-layer paint, the decorative paper has a plurality of surface resistances, such as abrasion resistance, pollution resistance and solvent resistance.

The invention provides a preparation method of coating for a building outer wall. The preparation method comprises the following steps: performing the modification reaction on acrylic elastic emulsion, fluorine-carbon emulsion, polydimethylsiloxane and graphene, then adding a mould-proof algae-control agent, an anti-insect additive, microporous calcium carbonate, modified attapulgite clay, glass beads, high-viscosity attapulgite clay, nano zinc oxide, nano titanium dioxide, a defoaming agent, and a film forming agent, sufficiently and uniformly mixing and dispersing, thus obtaining the coating. The preparation method of the coating for the building outer wall is simple in process, safe and pollution-free; and the prepared coating is not only resistant to abrasion, water, aging and pollution, but also is good in adhesion and mould-proof and anti-insect effect and suitable for popularization and application.

The invention discloses a wall of a light steel structural house. The wall is divided into an inner wall and an outer wall, wherein the inner wall is composed of gypsum boards, wall surface OSBs and alight steel keel, with the light steel keel as a bearing framework, the two sides of the light steel keel are each provided with one wall surface OSB, and the gypsum boards are located on the outermost layers; the outer wall is composed of a gypsum board, one wall surface OSB, a light steel keel, the other wall surface OSB, an insulating layer, a ventilation layer and an outer wall hanging platefrom inside to outside. The middle of each light steel keel is filled with a heat preserving and insulating material, a wood keel is arranged in the middle of the ventilation layer, breathing paper isattached to the surface, close to the insulating layer, of the ventilation layer, and all layers of the inner wall and the outer wall are connected together by cold-rolled steel nails from the two sides in a fastened mode. The wall is low in weight and good in wind and quake resistance, has good features of heat preserving and insulating, sound insulating, fire resistance, moisture prevention, corrosion prevention and the like, and can be widely applied to office buildings, villas, storehouses, stadiums, entertainment venues and tourism buildings.

The present invention provides a surface decorated wood-based panel with a dermatoglyph paper impregnated thermosetting resin, and a production method thereof. The method comprises: assembling a dermatoglyph stainless steel template and a buffer cushion into a single layer hot pressing machine, and placing the buffer cushion between the hot pressing plate of the hot pressing machine and the dermatoglyph stainless steel template to form a wood-based panel slab; carrying out transfer operation on the substrate by using a plurality of vacuum suction disks, and carrying out gas blowing dust removing and anti-plate overlaying adhesion treatment; and carrying out hot pressing through the hot pressing machine to form the surface decorated wood-based panel with the dermatoglyph paper impregnated thermosetting resin, wherein the hot pressing temperature is controlled to 180-190 DEG C, the hot pressing pressure is controlled to 25-28 kg/cm<2>, and the hot pressing time is controlled to 20-28 s. According to the present invention, characteristics of simple manufacturing process, easy mechanized mass production, low production cost, strong texture of the surface decorated wood-based panel, high simulation degree, beautiful and stylish property, no use of glue during production, environmental protection and cost saving are provided, and the multiple steps of the production process are improved so as to provide characteristics of energy saving and time saving.

The invention discloses a health-care compound feed for enhancing the anti-stress capability of freshwater fishes. The health-care compound feed is prepared from the following raw materials in parts by weight: 0.1-0.3 part of microelement, 0.03-0.06 part of vitamin, 1-2parts of mineral substances, 5-10 parts of fish meal, 10-20 parts of bean pulp, 20-40 parts of miscellaneous meal, 20-40 parts of bran distilled grain dregs, 5-10 parts of flour, 3-5 parts of alfalfa meal, 4-8 parts of kelp powder and 1-2 parts of grease. The health-care compound feed is convenient to use and free of toxic and harmful effect, and contains 28% of crude protein. According to physiological characteristics of the freshwater fish, not only are nutrition indexes required by the fishes achieved through the raw materials such as high-quality fish meal, miscellaneous meal and bran distilled grain dregs, but also the anti-stress capability and the immunity of the freshwater fishes are improved and the growth of the freshwater fish is prompted as various anti-stress substances are added.