31results about How to "No source of pollution" patented technology

The invention discloses a tungsten-doped vanadium dioxide nanopowder and a preparation method for the nanopowder. The powder is flaky or conic rod-shaped tungsten-doped B-phase vanadium dioxide of which the chemical formula is V1-xWxO2; the flaky V1-xWxO2 is 1-10 nm thick, 350-450 nm wide and 3-5 mum long, and the conic tip diameter of the conic rod-shaped V1-xWxO2 is 15-25 nm, the cone length is110-150 nm, the rod diameter is 130-150 nm and the rod length is 1-2 mum; the preparation method comprises the following steps of: firstly, weighting vanadium pentoxide and ammonium tungstate according to a component ratio of the V1-xWxO2, melting the weighted vanadium pentoxide and ammonium tungstate and preserving heat for at least 20 minutes, then, dipping the molten mass in a quenching media and stirring for at least 12 hours, standing and aging for at least 10 days to obtain a doped sol, afterwards, adding polyethylene glycol aqueous solution into the doped sol, stirring for at least 8 hours to obtain mixed solution, and setting the mixed solution to be airtight for reaction for 2-6 days at the temperature of 180-220 DEG C so as to prepare the tungsten-doped B-phase vanadium dioxide powder. The tungsten-doped B-phase vanadium dioxide powder can be used as electrode material for lithium ion batteries; and after being annealed, the tungsten-doped B-phase vanadium dioxide powder canbe prepared into a phase-change metallic oxide material with wider application, namely, a tungsten-doped M-phase VO2.

The invention discloses an aqueous white color chip for artificial leather. The color chip is characterized by being prepared from the following raw materials in part by mass: 4,000 to 5,600 parts of titanium white, 2,100 to 3,700 parts of styrene-acrylic resin, 300 parts of ethanolamine, and 5,000 parts of water (H2O). A preparation method comprises the following steps of: weighing the raw materials according to the mass proportion; pouring the styrene-acrylic resin, the ethanolamine and the water into a material cylinder of a ball mill, and grinding for 5 to 20 minutes to ensure that the raw materials are fully mixed and dissolved to obtain emulsion; pouring the titanium white into the material cylinder, grinding for 2 to 2.5 hours by the ball mill, and dispersing to ensure that the emulsion and the titanium white are fully mixed to obtain paste; and finally, drying the paste by a dryer to obtain the solid aqueous white color chip. The aqueous white color chip is easy to package andstore, and also has the characteristics of good environment friendliness, good color development performance, easiness in color mixing, high repeatability and broad applicable scope.

The invention relates to a continuous metallurgical composite production process for copper-clad aluminum rows. The process comprises a pretreatment step, a continuous coating step, a welding step, a continuous rolling step, an on-line automatic monitoring step and a diffusion heat treatment step, thereby achieving the following technical effects of: (1) ensuring full uniform combination of copper sheets and aluminum rows, as well as uniform thickness of copper coating; and (2) greatly improving finished-product rate and ensuring yield and quality. Therefore, the production process solves theproblem of producing the copper-clad aluminum rows with various specifications, is particularly applicable to the manufacture of large-size copper-clad aluminum rows, and has huge economic benefit.

The invention relates to a method for improving an eutrophic water body by planting vegetables on a water surface, which comprises the following steps of: (1) selecting fresh water of which the nitrogen content is more than or equal to 0.5 mg / L, phosphorus content is more than or equal to 0.05 mg / L and potassium content is more than or equal to 0.5 mg / L in a water body; (2) enclosing a vegetable planting area; (3) arranging the vegetable planting area; (4) manufacturing a floating planting bed; (5) selecting vegetable varieties; (6) planting vegetables; (7) managing, namely controlling the speed of water flow according to the growth vigor of the vegetables and a detection result of water quality, so that compared with a water inlet in the planting area, at a water outlet, the total nitrogen content is reduced by 30 to 90 percent, the total phosphorus content is reduced by 20 to 70 percent, and the potassium content is reduced by 10 to 50 percent while the growth vigor of the vegetables is ensured; and (8) selecting the vegetable varieties which is suitable to be planted in different seasons, and planting in turn throughout the year. In the method, the eutrophic water body is improved effectively by a biological cleaning method, and compared with physical and chemical means of managing the eutrophic water body, the method has obvious effect and low investment cost and is convenient to popularize and perform large-scale planting; and the vegetables are planted without applying fertilizer and spraying pesticides, so a new pollution source is not generated, and the planted vegetables reach the standard of green organic vegetables. By the method, resource utilization is maximized, and vegetable baskets of people are abundant while the eutrophic water body is managed. The production management and monitoring are convenient, so the method is particularly suitable for the large-scale planting.

The invention relates to a water-based color chip for artificial leather, which is prepared from the following raw materials in parts by mass: 1250-5600 parts of primary color powder, 2100-3700 parts of styrene-acrylic resin, 300 parts of ethanolamine and 5000 parts of water (H2O). The powder comprises titanium white and carbon black. The preparation method comprises the following steps: weighing the raw materials according to parts by mass: pouring the styrene-acrylic resin, ethanolamine and water into a material cylinder of a ball grinder, and grinding for 5-20 minutes until the styrene-acrylic resin, ethanolamine and water are sufficiently mixed and dissolved, thereby obtaining an emulsion; pouring the primary color powder into the material cylinder, and dispersing by grinding with a ball grinder for 2-2.5 hours until the emulsion and primary color powder are sufficiently mixed, thereby obtaining a slurry; and finally, drying the slurry with a drying machine, thereby obtaining the solid water-based color chip. The invention is convenient for color matching and easy for storage, has the characteristics of favorable repetitiveness and wide application range, and can be dissolved in water-based polyurethane and oil-based polyurethane.

The invention relates to a preparation method of copper foil antenna and comprises the following steps: first, designing the shapes and dimensions of die cutting tools of materials according to requirements; preparing raw materials of double faced adhesive tape, PET, copper foil, PC, transparent PET protective film and exhausting film, respectively preparing tools for die cutting PC, copper foil,transparent PET and main material mesh cloth and installing on the tool seats corresponding to the used die cutting devices, respectively laminating and die cutting the raw material of PC, copper foil, transparent PET and mesh cloth to obtain a tape coiling group winded with initially shaped half-finished products of PC, copper foil and transparent PET and directly obtain the monomer half-finished product of mesh cloth; then placing the tape coiling group of the half-finished products of PC, copper foil and transparent PET on slicing machines to slicing; sticking PC, copper foil and transparent PET sequentially on fixed position on a jointed board to obtain the finally finished product of copper foil antenna. The method can replace the conventional methods to manufacture antennae, can satisfy the requirement on internally installed antennae in mobile phones well, can realize mass production, and opens up a new field for preparation technology of antennae.

The invention discloses a magnetic force-driven tapered hole inner surface strengthening device in the field of parts surface treatment. The bottom of the cylinder body is vertically placed with a workpiece, and the workpiece is provided with a tapered hole whose large end faces directly above. , the center of the top cover has a top cover through hole communicating with the taper hole, a piston is arranged in the top cover through hole, the piston is fixedly connected to the lower end of the connecting rod coaxially, and the upper end of the connecting rod extends upwards out of the top cover and is fixed Connect the slider, the slider is slidably connected with the upper and lower vertical guide rails, the slider is fixedly connected to one end of the transmission rod at the same time, and the other end of the transmission rod is fixedly connected to the edge of the disc arranged horizontally on the central axis, and the disc is fixedly connected to the center of the shaft. One end of the commutator piece, the other end of the commutator piece is fixedly connected to the coil, the coil is horizontally placed between a pair of magnets, the commutator piece is in contact with the brush, and the brush is connected to the power supply through a wire; the volume is driven alternately by magnetic force, Cavitation enhancement is caused by changing the liquid pressure in the volume, and the strengthening effect is good.