1004results about How to "Simple equipment requirements" patented technology

The invention relates to a manufacturing method for nanometer rod film of zinc oxide on fiber product, comprising (1) by sol-gel method ZnO nano-crystal grain is prepared and a great deal of ZnO seed crystal is deposited on the surface of fiber product, molar concentrations of zinc salt and alkaline agent are all 0.001M-0.75M; (2) by hydrothermal method or precipitation of chemical solution pool, nanometer rod film of zinc oxide grows on fiber product, molar concentrations of zinc salt solution and complexing agent solution are all 0.001M-0.05M; ZnO nanometer rod film with equal surface and good directivity is obtained. The manufacturing method is provided with simple method and low cost. It is suitable for industrial production.

The invention relates to a method for removing heavy metals in a water body, which is characterized in that common oxidizers for water treatment, such as hydrogen peroxide, sodium hypochlorite, potassium permanganate and the like, are utilized for oxidization to activate the zero-valent iron surface and continuously generate fresh iron (III) / (II) (hydro)oxide and other active components, thereby quickly and efficiently removing heavy metals in the water body, including As, Hg, Cd, Pb, Cr, Se, Sb, Cu, Zn and the like, in a mode of adsorption, precipitation, redox or the like.

In the invention, when a service packet needs to be transmitted, the follow steps will be executed: according to the saved and maintained channel usage list, the sending node selects a collision-free service channel; the RTS / CTS packet transmitted on first public channel between the sending node and receiving node realizes the handshake; the sending node transmits the service packet on said selected service channel; after successfully receiving the service packet, the receiving node replays the ACK packet on the second public channel.

The invention discloses a solid electrolyte material for a lithium battery and a preparation method and application of the solid electrolyte material, and belongs to the field of energy material preparation. The solid electrolyte material comprises a metal organic framework compound, a lithium salt, a film-forming additive and a filling. The solid electrolyte material for the lithium battery does not need polyoxyethylene or a derivative thereof; and compared with other inorganic solid electrolytes, the solid electrolyte material has the advantages of higher lithium ion containing capability, higher ionic conductivity and better heat stability, and the security of the battery can be greatly improved. The lithium-ion all-solid-state battery prepared by the method has the electrochemical properties equivalent to a liquid electrolyte. The solid electrolyte material for the lithium battery can be used for a lithium-ion battery, can be suitable for the systems of a lithium-sulfur battery, a lithium-air battery and the like, and is wide in application.

The invention discloses a method for preparing an ABX3 perovskite single crystal film. The method for preparing the ABX3 perovskite single crystal film comprises the following steps: dissolving A-containing halide and a B-containing metallic compound in a solvent M, and ensuring that the mole ratio of the A-contained halide to the B-contained metallic compound is 1:(0.1-2); preparing a perovskite solution with the concentration being 0.05 to 5.0mol / L; dropwise adding the perovskite solution onto a substrate P, and covering the substrate P with a substrate Q; controlling the growth direction of a perovskite single crystal through the substrate P and the substrate Q, so as to ensure that the crystal grows in a gap between the substrate P and the substrate Q, namely to ensure that the perovskite single crystal can grow only in two directions, and forming the perovskite single crystal film with the evaporation of the solvent in the perovskite solution between the two substrates. By adopting the method, a perovskite single crystal film with relatively high quality and relatively large size can be prepared; the method is simple in technology, high in operability and high in repeatability.

The invention relates to a preparation method of copper-zinc-tin-sulfur nano particles, which comprises the following steps: firstly, taking bivalent zinc salts, bivalent tin salts, univalent or bivalent copper salts, and sulfur powder; secondly, mixing the materials taken in the first step, adding oleyl amine, heating and purifying the product to obtain the copper-zinc-tin-sulfur nano-particles.The preparation method is pollution-free green, has mild and simple reaction conditions and low cost, and is suitable for large-scale production.

The invention discloses a method for preparing novel iron-carrying ordered mesoporous carbon materials. Through a soft template route, under the condition of adding no acid additionally, acid produced by iron-salt precursor hydrolysis of a synthesis system is utilized to catalyze phenolic polycondensation, and iron-salt precursors and phenolic polycondensation products are self-assembled around surfactant and are carbonized in inert atmosphere so as to prepare the iron-carrying ordered mesoporous carbon materials. The obtained iron-carrying ordered mesoporous carbon materials are ordered in height, high in specific surface area (410-586m2 . g-1) and uniform in pore size distribution (3.9 nm). The method realizes the one-step synthesis of the iron-carrying ordered mesoporous carbon materials. Compared with mesoporous carbon synthesis through a hard template route and an impregnating-loading process, the method has the advantages of easy operation, low cost, low requirements for equipment, and the like. The iron-carrying ordered mesoporous carbon materials prepared by the method have wide application prospects in the fields of catalysis, separation, electrode materials, repair to environmental pollutants, and the like.

The invention relates to the technical field of high polymer materials, the technical field of 3D printing, and the field of 3D casting, in particular to a PLA modified material applied to 3D printing of large casting molds, and a method of the PLA modified material. The invention provides the PLA modified material applied to 3D printing of large casting molds, and the PLA modified material comprises the following components: polylactic resin, an inorganic filler, a plasticizer, a flexibilizer, a coupling agent, a chain extender, an antioxidant, an anti-hydrolysis agent, a compatilizer, and a lubricant. To overcome defects in the prior art, the invention creatively develops the PLA modified material specially applied to 3D printing of large casting molds, and the PLA modified material has the advantages of being low in shrinking percentage, good in dimensional stability, high in strength, not liable to be affected with damp, low in price, easy to degrade, environment-friendly, non-toxic, non-irritant, non-pollution and the like.

The invention relates to a method for preparing a high-strength high-toughness magnesium alloy plate strip by cold deformation and artificial ageing, comprising the following steps of: placing a magnesium alloy in a thermal deformation state or a solid solution magnesium alloy cooled by water quenching after temperature preservation at the temperature of 400-540 DEG C for 1-15 hours into liquid nitrogen to be subjected to subzero treatment and cold deformation, or directly carrying out cold deformation on the original magnesium alloy in the thermal deformation state or the solid solution state, wherein the deformation is controlled to be 5-20%; and finally preserving the temperature of 100-250 DEG C for 5-100 hours and then carrying out artificial ageing, thus the high-strength high-toughness magnesium alloy is obtained. The method provided by the invention is reasonable in design, the equipment requirement is simple, the operation is convenient, and the problems that the cost is high, a large magnesium alloy is difficult to prepare and large-scale application is difficult to realize in the traditional high-strength high-toughness magnesium alloy preparation process can be effectively solved; and magnesium alloy plate strips with excellent comprehensive mechanical properties such as strength, stretchability and the like, thus the method has a good industrial application prospect.

The invention discloses a method for preparing Kefir sour milk which comprises water, sugar and sour milk prepared from the fermentation of two different Kefir grains; the preparing method comprises the follow steps: 1. raw milk is sterilized and then cooled to the temperature of 20 DEG C to 30 DEG C; 2. the two different Kefir grains are activated and cultured separately; 3. the activated and cultured Kefir grains with inoculum size of 2 percent to 5 percen are respectively inoculated to the sterilized raw milk; 4. the raw milk is fermented for 15 hours to 24 hours at the temperature of 20 DEG C to 30 DEG C; 5. the Kefir grains are filtered out to obtain two filtrates which are fermentation agents; 6. the two fermentation agents are mixed; 7. the mixed fermentation agents with the inoculum size of 2 percent to 5 percent are inoculated to the sterilized original milks and then fermented at the variable temperature ranging from 20 DEG C to 45 DEG C for 4 hours to 6 hours; and 8. the fermented milk are blended, homogenized and canned. With the adoption of the fermentation agents for fermenting at the variable temperature, the flavor of Kefir milk is well improved. The ferment time of the product is short, the yeasts in the mixed fermentation agents are more stable and the difference between flavors of Kefir sour milk prepared in different batches is small. The product has health-care functions of regulating beneficial bacteria in intestinal canals, lowering blood lipids, resisting tumors and the like, thus being a low-cost functional beverage.

The invention discloses a zero dimension perovskite structure luminescent material A4BX6 and a preparation method thereof. The preparation method comprises the steps of utilizing a principle that the solubility of a solute in a precursor solution can be reduced through an anti-solvent, dripping or slowly diffusing the anti-solvent into the precursor solution so as to prepare the zero dimension perovskite structure efficient luminescent material A4BX6 powder or a single crystal, and concretely, dissolving an A-containing halogen compound and a B-containing halogen compound or B-containing oxide into a solvent to obtain the precursor solution; slowly dripping or diffusing the precursor solution into the anti-solvent, and separating out the zero dimension perovskite structure luminescent material A4BX6 from the precursor solution. The method has the advantages that the obtained zero dimension perovskite structure luminescent material A4BX6 has high purity, the luminous efficiency is high, the requirement on the used equipment is simple, and the like.

The invention discloses a method for selectively separating and extracting vanadium and chromium from a solution containing the vanadium and the chromium. The method comprises the following steps: (1) NaHSO3 is added to reduce V (V) and Cr (VI) into V (IV) and Cr (III), (2) H2O2 is added to oxidize the V (IV) into V (V), (3) an ion exchange column is used to selectively absorb anions containing the vanadium, and effluent before penetrating is collected, (4) the chromium in the ion exchange column is washed down, and the effluent before penetrating is added to extract the chromium, (5) NaOH is used to elute resin carrying the vanadium to obtain eluant containing the vanadium, (6) ammonium metavanadate is prepared from the eluant and then roasted to obtain V2O5, and (7) the potential of hydrogen (PH)of a chromium solution is adjusted to enable the chromium to be separated out in the form of Cr(OH)3.nH2O, and then Cr2O3 powder is obtained through roasting. The method for selectively separating and extracting the vanadium and the chromium from the solution containing the vanadium and the chromium achieves efficient separation and high-purity extraction of the vanadium and the chromium, the overall recovery rate respectively reaches 82-90 % and 94-99 %, the purity of finished products respectively reaches 96-99 % and 94-97 %.

The invention discloses a nano zinc oxide-doped powder and a preparation method thereof. Silicon-aluminum co-doped nano zinc oxide powder is synthesized by using a co-precipitation and calcining one-step method; and the mol ratio of aluminum as a doping element to zinc oxide and the mol ratio of silicon as a doping element to the zinc oxide are (0.03:1)-(0.18:1) respectively. The nano zinc oxide-doped powder disclosed by the invention has the advantages that the whiteness of nano zinc oxide and the light transmittance in a visible light band are improved; the photocatalytic activity of the nano zinc oxide, the dissolving of zinc ions and the particle size increase of the zinc oxide particles in the roasting process are inhibited; and the dispersibility of the nano zinc oxide in water is improved; and the preparation method has the advantages of convenience in operation, simple requirement on equipment, short process flow, low cost and suitability for large-scale industrial production.

The invention belongs to the technical field of mesoporous material preparation, in particular to a mercapto-functionalized organic inorganic hybrid ordered mesoporous silicon material and a synthesizing method thereof. The material has high content of mercapto functional group (0.1 to 15 weight percent), high specific surface area (200 to 500m<2> / g), large pore volume (0.1 to 1.0cm<3> / g), and uniform pore diameter (3 to 12nm), and has a two-dimensional hexagonal mesoscopic structure. The synthesizing method comprises the following steps: carrying out prehydrolysis on an inorganic silicon source and a mercapto-containing organic silicon sources under an acidic condition to form a silicon source precursor; mixing the precursor with nonionic surfactant, adding soluble resin in the mixture, and carrying out self-assembly in the organic solution to obtain the mercapto functionalized-nonionic surfactant composite material; and removing the surfactant through solvent reflux extraction. The material has simple operation and low cost, can be used as an adsorbent for heavy metal ions in wastewater, and opens a new way for treatment of industrial wastewater containing heavy metal.