34results about How to "Evenly distributed and orderly" patented technology

The invention relates to three-dimensional order mono-disperse macropore material and its preparation method and functionalizing method. The three-dimensional order mono-disperse macropore material has 91%-98% syndiotactic polyvinyl alcohol arene, 80 nm-1000 nm average aperture. Its preparation method includes the following steps: using colloid crystal mold board method to make three-dimensional order mono-disperse macropore polyvinyl alcohol without water and oxygen by coordination polymerization; using copolymerization or chloromethylation to functionalize. It has the advantages of high melting point, quick crystallization rate, strong chemical resistance, good size stability, processing surface chemical modification, and wide application prospect in sensor, photon chip, photon band gap material preparation etc.

The invention discloses a method for preparing a fluoro-chlorine exchange catalyst with high specific surface area. The method comprises the following steps: carbonizing a metal-organic framework material MIL-101 (Cr) serving as a raw material and metal brine serving as an assistant, and performing fluoridation treatment, thereby obtaining the fluoro-chlorine exchange catalyst with high specific surface area. The method disclosed by the invention has the advantages that the metal-organic framework material MIL-101 (Cr) with high specific surface area, high internal pore volume and uniform andordered Cr element distribution serves as the raw material of the fluoro-chlorine exchange catalyst, so that the prepared fluoro-chlorine exchange catalyst also has the characteristics of high specific surface area, high internal pore volume and uniform and ordered Cr element distribution; the assistants are added by an adsorption method, so that the distribution of the assistants is uniform, andthe effective utilization rate of the assistants is improved; and the product has the characteristics of high specific surface area, rich internal pores, high catalytic activity, uniform assistant distribution and the like, and is applicable to the fluoro-chlorine exchange reaction.

The invention discloses a preparation method of functionalized carbon nanotube powder, relating to a preparation method of carbon nanotube powder. The purpose of the method is to solve the problems that the existing method for preparing functionalized carbon nanotubes has a high risk of reaction and is difficult to control, the grafting rate of surface functional groups is difficult to control, and the combination of the product and the composite material is weak. Method: 1. Heat the carbon nanotubes in a tube furnace and cool down to obtain purified carbon nanotubes; 2. Prepare FeSO ₄ Solution, adjust the pH; 3. Place the purified carbon nanotubes in FeSO ₄ solution, forming a suspension, oil bath, H ₂ o ₂ Adding to the suspension, standing still after the reaction, to obtain the product; 4. Washing, replacing with an organic solvent, centrifuging to obtain a muddy product, and freeze-drying to obtain the functionalized carbon nanotube powder. The reaction of the method is controllable, and the prepared powder can be dispersed in some organic solvents to form a uniform and stable system, and has a certain orientation ability under a specific field strength. The invention is used for preparing functionalized carbon nanotubes.

The invention discloses a composite titanium dioxide mesoporous thin membrane electrode material and a preparation method thereof. The preparation method comprises the steps: adding a titanium sourcecompound and an antimony source compound into a hydrochloric acid solution, stirring and mixing, carrying out a hydrothermal reaction to obtain a precursor solution, and carrying out spray drying andhigh-temperature calcination on the solution to obtain a mesoporous hollow spherical antimony-doped titanium dioxide composite material; putting the obtained material into a hydrochloric acid solution, carrying out ultrasonic dispersion, adding a pyrrole monomer under a stirring condition, uniformly stirring, dropwise adding an oxidant, standing after the reaction is finished, filtering, and drying to obtain a polypyrrole@antimony/titanium dioxide composite material; and uniformly mixing the prepared polypyrrole@antimony/titanium dioxide composite material with polyvinylidene fluoride, adding1-methyl-2-pyrrolidone to blend slurry, uniformly coating a conductive substrate with the slurry, drying, and calcining to obtain the thin membrane electrode material. According to the composite thinmembrane material prepared by the invention, the photoelectric property of the titanium dioxide electrode material is remarkably improved, the structure is compact, and the performance is stable.

The invention discloses a blanking mechanism based on a livestock nutrition feed mixing and stirring tank, and relates to the field of livestock nutrition feed mixing and stirring. The blanking mechanism comprises a mixing tank, a discharging hole is arranged in the middle of the bottom of the mixing tank in a communicating manner, a blanking stopper is installed at a feeding hole in the mixing tank, the top of the cavity of the blanking stopper is arranged in a trapezoidal shape, and a driving groove, which is communicated with the trapezoid part of the cavity, is arranged in the blanking stopper. The blanking mechanism can be used for uniform blanking in order in livestock feed mixing, enables two feeds to be mixed more uniformly when the two feeds uniformly fall on the blanking stopperand are rotated by a dispersion mixing net and dispersed by meshes of the net, and can scatter feeds better, so as to mix feeds in the mixing tank better, improve the mixing efficiency and avoid excessive waste.

The invention relates to a brazing diamond wire saw for cutting rare materials and a manufacturing process of the brazing diamond wire saw, the wire saw comprises a steel wire rope and a plurality of diamond beads fixed on the steel wire rope in a sleeving manner, and each diamond bead comprises a cylindrical base body, a material skin covering the outer wall of the base body and a plurality of diamond particles uniformly and fixedly arranged on the outer surface of the base body. The manufacturing process of the wire saw comprises the steps that an adhesive with brazing filler metal is manufactured, and the diamond particles uniformly adhere to the adhesive to form the material skin; the material skin is cut and adheres to the outer surface of the base body to form a bead green body, and the green body is brazed to form the diamond beads; and the diamond beads are arranged on a rope body in a sleeving mode and fixed through the TPU injection molding technology, and therefore the diamond wire saw is formed. The brazing diamond wire saw for cutting the rare materials and the manufacturing process of the brazing diamond wire saw have the effects of reducing the diameter of the cross section of the wire saw and improving the cutting efficiency.

The invention discloses an adsorbent and a preparation method and application thereof. The preparation method of the adsorbent comprises the following steps: preparation of metal salt solution, specifically, metal salt is dissolved in a solvent to obtain the metal salt solution, the metal salt is copper salt, and the solvent is ethyl alcohol or chloroform; loading: dipping the ZIF-8 carrier in a metal salt solution, and drying to obtain a dried product; and reduction: reducing the dried product into an adsorbent containing monovalent metal ions in an inert atmosphere at the temperature of less than or equal to 400 DEG C. The adsorbent containing the monovalent metal ions can be effectively prepared by adopting an organic solvent impregnation method, the preparation method does not cause framework collapse of MOFs, and the preparation method is simple, easy to implement and suitable for large-scale production; and the prepared adsorbent has more efficient CO gas adsorption capacity.

The invention discloses a covalent organic framework taking triphenyl antimony as a framework as well as a preparation method and application thereof, and relates to the field of covalent organic frameworks (COFs) materials. The material is prepared by condensing a trialdehyde compound containing triphenyl antimony and an aromatic diamine monomer, and the preparation method comprises the following steps: 1) respectively adding tri (4-formylphenyl) antimony and aromatic diamine into an organic solvent, carrying out ultrasonic dispersion, and adding an acetic acid solution to obtain a turbid liquid; (2) carrying out liquid nitrogen freezing, vacuumizing and degassing treatment on the obtained turbid liquid, sealing, and heating for 72 hours to obtain a crude product; and 3) carrying out suction filtration and washing on the obtained crude product by using N, N-dimethylformamide (DMF), then carrying out Soxhlet extraction by using tetrahydrofuran (THF), and carrying out vacuum drying to obtain the covalent organic framework taking triphenyl antimony as the skeleton. The covalent organic framework material disclosed by the invention takes a triphenyl antimony structural unit with oxidation-reduction activity as a framework for the first time, and an electrode taking the triphenyl antimony structural unit as an active material shows excellent supercapacitor performance.

The invention provides an ultraviolet photoelectric device and a preparation method thereof, and relates to the technical field of semiconductors. The ultraviolet photoelectric device comprises a substrate, a base plate, an n-type AlGaN layer, an active region and a p-type AlGaN layer, wherein the base plate, the n-type AlGaN layer, the active region and the p-type AlGaN layer sequentially grow onthe substrate. The p-type AlGaN layer comprises a first body and first steps located on the top face of the first body, and the fall distance L between every two adjacent first steps is larger than the thickness of a monatomic layer. According to the ultraviolet photoelectric device and the preparation method thereof, a plurality of single atoms can be piled up in the fall direction of two adjacent first steps, and a step coalescence effect is formed on the p-type AlGaN layer; the hole transport efficiency is improved; the ultraviolet absorption is weakened; and the photoelectric conversion efficiency of the device is improved.

The invention relates to the technical field of cigarette making, and provides a preparation method of a non-combustible cigarette fuming base strip. The method comprises: at least one strip-shaped raw material is adsorbed on a conveyor belt under negative pressure to be conveyed; Screening and removing at least one strip-shaped raw material during the conveying process; Fragrance at least one ofthe strip-shaped raw materials during transport; Laying at least one strip-shaped raw material in an orderly manner; At least one of the orderly laid strips of raw material is rolled into a base strip. In the preparation process, the method can reduce the crushing of the strip-shaped raw material, ensure the smoothness of the end face of the base strip, and reduce the phenomenon of short end or virtual end of the cigarette rod. The invention also provides a non-combustible cigarette fuming base strip prepared by the method, wherein the cigarette shreds are uniformly and orderly distributed, and the cigarette shreds have no empty head or imaginary head phenomenon.

The invention discloses a method for preparing an aniline-pyrrole copolymer under assistance of microwaves. The method comprises steps as follows: 1, pyrrole, aniline and acid are added to deionized water for ultrasonic dispersion, and a mixed solution A is obtained; 2, an oxidizing agent, a surfactant and a catalyst are added to the deionized water for ultrasonic dispersion, and a mixed solutionB is obtained; 3, the mixed solution B is dropwise added to the mixed solution A for a microwave-assisted reaction, and slurry containing precipitates is obtained; 4, the slurry is centrifuged, the precipitates are collected, washing, centrifugation and vacuum drying are performed sequentially, and the aniline-pyrrole copolymer is obtained. The aniline-pyrrole copolymer is prepared under assistance of the microwaves, uniform and ordered growth of aniline and pyrrole molecules is promoted through radiation heating of aniline, pyrrole molecules and water by use of microwaves, the obtained aniline-pyrrole copolymer has a relatively loose 3D ordered structure and fewer defects, so that the pseudocapacitance of the aniline-pyrrole copolymer as an electrode material is improved, the cycle life of the aniline-pyrrole copolymer is prolonged, and the electric conductivity is improved.