30results about How to "Orientation controllable" patented technology

The invention relates to a polymer/inorganic nanometer composite separation membrane and a preparation method thereof. The composite separation membrane consists of a solid matrix of polymer materials and conductive nanomaterials uniformly distributed in the above matrix according to a certain orientation. In the preparation method, conductive nanomaterials which can be arrayed in a certain orientation are uniformly distributed in a film-forming macromolecular material solution. Then electric field is applied during the film-formation process of the mixed solution. The conductive nanomaterials are aligned to the direction of electric field in the film to form the polymer/inorganic nanometer composite separation membrane. The separation membrane has a greater area and smooth surface, controllable film thickness and strength, steerable nanomaterial density and orientation, good selectivity, high transmittance for selected gas and liquid molecules. The method of the invention has the characteristics of simple preparation, easy operation and low cost. The invention can be widely used in the fields of large-scale isolation and purification of gas and large-scale filtration and separation of liquid.

The invention relates to a preparation method of orientation-controllable Cu-Al-Mn shape memory alloy single crystals, belonging to the field of preparation of metal materials. The preparation methodcomprises the steps of firstly, preparing columnar polycrystalline Cu-Al-Mn shape memory alloy blank with <100> fiber texture along the solidification direction by adopting a directional solidification method; then, adopting a cyclic heat treatment method to enable the alloy crystal grains to continuously grow abnormally until growing into single crystals; meanwhile, controlling the cycle heat treatment system and process parameters to ensure that the crystal grain orientation has no obvious change in a single crystal growth process so as to obtain the Cu-Al-Mn shape memory alloy single crystals having near <001> orientation along the initial solidification direction. The preparation method, provided by the invention, of the single crystals realizes the orientation control of the solid phase transformation method in the single crystal growth process, and has the advantages of capability of preparing the large-sized single crystals (the single crystal sizes can reach 50 mm or more), easy orientation control, simple process, and the like.

The present invention provides a method for preparing functional composite material, which includes the following steps: firstly, placing the powder with functional action in a container cavity, applying field action to said powder, impregnating the powder with liquid material, finally solidifying the liquid material or firstly, placing the liquid material in the container cavity, then adding the powder with functional action into the container cavity in whith the liquid material is held, and applying field action to the power in the container cavity, and finally solidifying the liquid material. Said functional composite material can have the functions of electric conductivity, semi-conduction, superconductance, magnetism, piezoelectricity, damping, sound-absorbing, light sensation and thermal sensation, etc.

The invention relates to an 8-hydroxyquinoline metal compound micrometer/nanometer tube and a preparation method thereof. A chemical compound of the micrometer/nanometer tube is 8-hydroxyquinoline gallium (Gaq3) or 8-hydroxyquinoline aluminum (Alq3); the cross section of the micrometer/nanometer tube is in a hexagonal shape or square shape, an orifice of the micrometer/nanometer tube is in a square shape or a circular shape, the length of the micrometer/nanometer tube is 200nm to 60 micrometers, the wall thickness of the micrometer/nanometer tube is 20nm to 1 micrometer, and the radius of the micrometer/nanometer tube is 20nm to 3 micrometers. The invention also provides a preparation method of the micrometer/nanometer tube. The 8-hydroxyquinoline gallium (Gaq3) and 8-hydroxyquinoline aluminum (Alq3) micrometer/nanometer tube is controllable in size and direction and good in crystallization quality. The 8-hydroxyquinoline metal compound micrometer/nanometer tube can be used as an anticancer drug and also has a drug transport characteristic, other medicine components can fill the micrometer/nanometer tube to be carried and transported, and the biological application is excellent.

The invention discloses a polarizing material, a preparation method thereof, a polaroid and a display panel. The polarizing material comprises iodine bond liquid crystal, the iodine bond liquid crystal contains iodine molecules, and the orientation of the iodine bond liquid crystal can absorb light vibrating in a specific direction to realize a polarization function. Orientation of the iodine bondliquid crystal is easy to control, single-axis stretching treatment is not needed, an upper TAC plate and a lower TAC plate do not need to be used, and therefore the polaroid made of the polarizing material can simplify the process and the polaroid film layer structure, and the manufacturing cost of the display panel is reduced.

In this method, the component of the plumbum magnesium acid-plumbum titanic acide (PMNT) or plumbum zincic niobium acid-plumbum titanic acid (PZNT) crystal growth is applied to process the blending of the oxide. Grinding and calcinating the confected powder material in the agate ball milling pot; mixing the calcinated powder material with the fluxing agent, plumbum oxide under the high temperature, dunking the material after a period of time, on the base plate with the germ film, the PZNT or PMNT thick film being produced. The simple technology, convenient operation extend the application of liquid phase epitaxy.

In the method, oxide raw material is prepared according to composition used normally in crystal growth of lead magnesate niobium-lead titanate or lead zincate niobium-lead titanate first. Then the prepared power material is put into agate mortar for ball grinding and to carry on roasting at temperature of 900 degreeC. At last, PZNT (PMNT) thick film is prepared by epitaxial growth on substrate of strontium titanate after the roasted powder material is mixed uniformly with flux of lead oxide and to soak it under high temperature for a period of time.

The invention discloses a method for induced growth of DAST and a derivative single-crystal film thereof by using a self-assembly monomolecular film. The method comprises the following steps: performing self-assembly of a layer of monomolecular film containing one or more functional groups of -SO3-, -OH, -Cl-, -NH2-, -F- and -COOH on the surface of a substrate to realize functionalization of the substrate; clinging two functionalized substrates in parallel and inserting to DAST or DAST derivative solution; and growing DAST or DAST derivative single crystal between the two substrates by adopting a slow solvent evaporation process. The method disclosed by the invention can effectively overcome the problems such as poor thickness and orientation controllability of crystal, easy formation of twin crystal and water vapor interference with crystal growth in the growth process of organic film single crystal, and can effectively control the thickness and growth direction of the DAST or DAST derivative crystal to avoid twin crystal.

The invention discloses a laminated-oriented 3D printer nozzle mechanism. The mechanism involves an upper machine head and a lower machine head, wherein the upper machine head and the lower machine head are positioned through positioning bosses, a first inner thread section, grooves and a second inner thread section are sequentially arranged in the upper machine head and the lower machine head along the radial direction, the second inner thread section located at the ends of the upper machine head and the end of the lower machine head is connected with an outer thread of a nozzle, a first layering section, a first torsion section, a second layering section, a second torsion section and a confluence section are sequentially arranged in a cavity formed by connecting the grooves of the uppermachine head and the lower machine head in the radial direction. The fused printing wire material flows into a laminated-oriented 3D printer nozzle, then is subjected to the process of layering, twisting, re-layering, re-twisting and confluence, so that the melt can be continuously subjected to strong shearing action, the material can be more uniformly mixed; and meanwhile, the orientation state of the high polymer is more obvious, so that the mechanical property of the material is improved.