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One-dimensional tellurium micro-nano structure film with controllable wettability and preparation method thereof

A tellurium micro-nano structure film technology, applied in the field of four one-dimensional tellurium micro-nano structure films and their preparation, to achieve the effects of simple experimental equipment, fast water droplet diffusion speed, and simple steps

Active Publication Date: 2018-01-09
THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the various preparation techniques currently used, on the one hand, involve complex chemical synthesis methods, such as electrochemical methods, wet chemical methods, and hydrothermal methods; on the other hand, they require the use of toxic and corrosive low surface energy materials, such as polyperfluoro Alkyl siloxane

Method used

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  • One-dimensional tellurium micro-nano structure film with controllable wettability and preparation method thereof
  • One-dimensional tellurium micro-nano structure film with controllable wettability and preparation method thereof
  • One-dimensional tellurium micro-nano structure film with controllable wettability and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Place a FeCoCr alloy substrate with a length of 2.5 cm and a width of 2.5 cm in an ethanol solution, ultrasonicate for 5 minutes to remove surface organic matter, take it out and dry it with nitrogen;

[0044] (2) Put tellurium powder 1 with a purity of 99.99% in a boat-shaped crucible, and then place the boat-shaped crucible with tellurium powder 1 in the high-temperature center of the quartz tube of the tube furnace 2. The diameter of the quartz tube is 2.5 cm and the length is 1 m. ;

[0045] (3) placing the FeCoCr alloy substrate 3 cleaned in step (1) in the downstream low-temperature area along the airflow;

[0046] (4) Turn on the vacuum pump and pump the pressure inside the quartz tube to about 1pa;

[0047] (5) Open the hydrogen valve connected to the tube furnace, and use hydrogen with a gas flow rate of 10 sccm to continuously flush the quartz tube three times;

[0048] (6) Close the hydrogen valve and open the argon valve to ensure that the flow rate of...

Embodiment 2

[0057] The difference between this example and Example 1 is that in step (6), the flow rate of argon gas is kept at 120 sccm, and the pressure in the quartz tube is kept at 13800 pa; in step (11), the growth (deposition time) is kept at 45 minutes.

[0058] Also: (13) Place the FeCoCr alloy substrate modified by the randomly oriented needle-tip nanowire clusters described in step (10) in the central temperature zone of the tube furnace, vacuumize the tube furnace to 10 Pa before heating, and lower the furnace temperature to Raise the temperature to 250°C, pass in argon gas with a flow rate of 10 sccm, and keep the oxygen-free state in the tube for 0.5h to obtain a smooth tellurium film.

[0059] The morphological characterization of the one-dimensional tellurium micro-nano structure film and tellurium smooth thin film in Examples 1 and 2 of the present invention will be described below.

[0060] The invention uses a field emission scanning electron microscope S4800 to characte...

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Abstract

The invention relates to an infiltration-performance-controllable one-dimensional tellurium micro-nano structure membrane and a preparation method thereof. The preparation method comprises the following steps: constructing four one-dimensional tellurium micro-nano structures with different infiltration performance on the substrate surface of a soft magnetic material namely an FeCoCr alloy by adopting a physical vapor deposition technology; and adjusting the temperature of an evaporation source and the deposition temperature to obtain a hydrophilic triangular micron rod array with a contact angle of 25 degrees, a hexagonal nano-wire array and a needle-point nano-wire array which are hydrophobic, have high adhesion, and respectively have the contact angles of 123 degrees and 135 degrees, and a randomly-oriented needle-point nano-wire cluster which has the contact angle of 171 degrees, has complete water discharge, and is non-adhesive. The infiltration-performance-controllable one-dimensional tellurium micro-nano structure membrane disclosed by the invention is simple in preparation process, complex chemical reactions are not involved, and toxic and corrosive low-surface-energy materials are not used. The infiltration-performance-controllable one-dimensional tellurium micro-nano structure membrane can be applied to the construction of super-hydrophobic metal surfaces with self-cleaning performance, water resistance and anti-fog performance, and can also be applied to the construction of high-adhesion hydrophobic metal surfaces capable of grabbing droplets without loss.

Description

technical field [0001] The invention belongs to the technical field of wettability regulation of micro-nano structure on the surface of solid materials, and specifically relates to four kinds of one-dimensional tellurium micro-nano structure films and a preparation method thereof. Background technique [0002] Inspired by natural superhydrophobic phenomena such as "lotus leaf effect" and "rose effect", researchers have obtained various technical methods for preparing superhydrophobic solid surfaces. These technologies are widely used in self-cleaning, smart microfluidic control, and waterproof solid surfaces. Compared with the chemical composition of the solid surface, the roughness of the solid surface determines the wettability of the solid surface to a greater extent. Therefore, the desired wettability of the solid surface can be designed by constructing different micro-nano structures on the solid surface, so that it can be widely used. It is used in the fields of micro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/06B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C23C14/06
Inventor 何军王启胜沙法得·穆罕默德
Owner THE NAT CENT FOR NANOSCI & TECH NCNST OF CHINA