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Temperature control film with underwater gas intercepting or collecting function and preparation method

A functional and gas technology, applied in the field of temperature-controlled membranes and preparations with underwater gas interception or collection functions, can solve problems such as the inability to achieve controllability of gas collection

Active Publication Date: 2020-02-14
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of manufacturing superhydrophobic / superaerophylic by laser etching is easy to realize and has high controllability, but this structure cannot realize the controllability of gas collection, which belongs to a purely passive gas collection device

Method used

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  • Temperature control film with underwater gas intercepting or collecting function and preparation method
  • Temperature control film with underwater gas intercepting or collecting function and preparation method
  • Temperature control film with underwater gas intercepting or collecting function and preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0041] The temperature control membrane with the function of intercepting or collecting underwater gas in this embodiment, the heating electrode material is platinum; the heat insulating layer is a polyimide film with a thickness of 100 μm; The thickness of base siloxane is 500 μm; the heating electrode spacing D is 5 mm; the through hole diameter R1 is 200 μm; the through hole spacing d1 is 400 μm; the progressive scanning spacing h is 100 μm.

[0042] 1. Prepare heating electrodes on the heat insulating layer;

[0043] Spin-coat photoresist on a 4-inch polyimide film 1 with a thickness of 100 μm, and pattern the heating electrode ( figure 2 a), and then sputter-deposit a metal platinum with a thickness of 1 μm, a length L of 6 cm, and a width d of 20 μm to obtain a heated platinum electrode 3 ( figure 2 b). Next, metal platinum 3 is deposited on the other side of the heat-insulating film in the same manner, and the positions of the heating electrodes on the upper and lower...

Embodiment 2

[0056] The temperature control membrane with underwater gas interception or collection function aimed at in this embodiment, the heating electrode material is nickel; the heat insulating layer is a polyimide film with a thickness of 200 μm; The thickness of base siloxane is 100 μm; the heating electrode spacing D is 3 mm; the through hole diameter R1 is 300 μm; the through hole spacing d1 is 1 mm; the progressive scanning spacing h is 150 μm.

[0057] 1. Prepare heating electrodes on the heat insulating layer;

[0058] Spin-coat photoresist on a 4-inch polyimide film 1 with a thickness of 200 μm, and pattern the heating electrode ( figure 2 a), and then sputter-deposit a thickness of 1 μm, a length L of 6 cm, and a width d of 30 μm of metallic nickel to obtain a heated nickel electrode 3 ( figure 2 b). Next, metal nickel 3 is deposited on the other side of the heat-insulating film in the same manner, and the positions of the upper and lower layers of heating electrodes need ...

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Abstract

The invention discloses a temperature control film with an underwater gas interception or collection function and a preparation method, and belongs to the technical field of functional materials. Thetemperature control film is composed of a heat insulation layer, two super-hydrophobic / super-aerophilic microstructure layers, two heating electrode layers and two temperature-sensitive layers, wherein the two heating electrode layers are symmetrically distributed on the upper surface and the lower surface of the heat insulation layer; the two super-hydrophobic / super-aerophilic microstructure layers are adopted to wrap the heating electrodes and form a sandwich structure with the heat insulation layer; the temperature-sensitive material layers are fixed on the outer surfaces of the two super-hydrophobic microstructure layers; and through holes penetrating through the whole temperature control film are formed between the heating electrodes. The temperature control film can be used for intercepting or collecting bubbles in water medium, and due to the fact that underwater interception or collection is mainly related to physical properties of the bubbles and is irrelevant to gas types, various gases such as air, oxygen, methane, hydrogen and nitrogen can be intercepted or collected.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a temperature-controlling membrane with the function of intercepting or collecting underwater gas and a preparation method thereof. Background technique [0002] Underwater gas interception or collection has important significance and potential application value, and gas / liquid separation can prevent a series of damage caused by air bubbles. For example, in the microfluidic experimental system, when liquid is injected into the chip channel or when the fluid switch is working, some air bubbles will be introduced, which will lead to unstable flow and affect the accuracy of the experiment; Cells exert pressure and even cause cell death; air bubbles in aqueous environments can cause severe corrosion and clogging, and high impact pressures from cavitation air bubbles can damage the surface of solid materials. The micro / nano structured surface with superhydrop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/82B01D69/02B01D67/00B01D19/00
CPCB01D71/82B01D69/02B01D67/0006B01D19/0031B01D2325/38
Inventor 马炳和张忠刚罗剑王善忠高伟
Owner NORTHWESTERN POLYTECHNICAL UNIV
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