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An electrolytic membrane valve and its manufacturing method

A manufacturing method and electrolytic membrane technology, applied in valve devices, mechanical equipment, engine components, etc., can solve problems such as interference with the passage efficiency of electrolytic microchannels, and achieve the effect of ensuring passage efficiency and avoiding air bubbles

Inactive Publication Date: 2021-07-16
山西云锦成文化投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an electrolytic membrane valve and its manufacturing method, in order to solve the existing problem of interfering with normal electrolysis and microchannel passage efficiency due to the generation of a large number of bubbles

Method used

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  • An electrolytic membrane valve and its manufacturing method
  • An electrolytic membrane valve and its manufacturing method
  • An electrolytic membrane valve and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as Figure 5 Shown, the effect of voltage on the rupture of 400nm Au films in different conductive media.

[0039]A gold film with a thickness of 400 nm and a diameter of 1.4 mm was used as a valve film in conjunction with an electrode with a mixture of silver and carbon ink (50% w / w). Prepare NaCl conductive media by adding 0.4 M NaCl to PBS buffer. Prepare CsCl conductive media by adding 0.4 M CsCl to PBS buffer. Different voltages of 3, 4 and 5 volts were applied across electrodes consisting of 50% carbon ink. In the presence of each conductive medium, 50% silver ink corroded the gold film, and the average time for film rupture of each conductive medium was measured.

[0040] As a result, as shown in Table 1 below, when the concentration of sodium or cesium ions was increased, the corrosion of the conductive film was improved. At 3 volts, the effect of both ions was similar, however, the accelerated corrosion of the film was more pronounced for cesium as hig...

Embodiment 2

[0044] Such as Figure 6 Shown, the effect of applied voltage on the rupture of 7.2 μm Al film in different conductive media.

[0045] An aluminum film with a thickness of 7.2 μm and a diameter of 1.4 mm was used as a valve film in conjunction with an electrode composed of a mixture of silver and carbon ink (50% w / w). Prepare NaCl conductive media by adding 0.4 M NaCl to PBS buffer. Prepare CsCl conductive media by adding 0.4 M CsCl to PBS buffer. In the presence of each conductive medium, different voltages of 3, 4, and 5 volts were applied through the electrodes to etch the aluminum film, and the average time for film rupture of each conductive medium was measured. The results are shown in Table 2 below.

[0046] Voltage (V) CsC(min) NaCl(min) PBS 3 7.4 7.6 12 4 3.01 4.31 6 5 1.01 2.53 4

[0047] Table 2

[0048] From the results, it can be seen that increasing the concentration of sodium or cesium ions shows improved film corros...

Embodiment 3

[0050] Such as Figure 7 Shown, at 4V, the effect of CsCl concentration on the rupture of 7.2μm Al and 400nm Au films.

[0051] An aluminum film with a thickness of 7.2 μm and a gold film with a thickness of 400 nm each having a diameter of 1.4 mm were used as a conductive film in combination with an electrode comprising screen-printed carbon ink for aluminum and silver and carbon for gold Mixture for screen printing of ink (50% w / w). Conductive CsCl media with different ionic strengths were prepared by adding 0.2 M to 0.6 M CsCl to PBS buffer. In the presence of the conductive medium at each different CsCl concentration, a fixed voltage of 4 volts was applied across the electrodes to etch the film, and the average time to film rupture was measured. The results are shown in Table 3 below.

[0052] Au Al CsCl concentration (M) Burst time (min) Burst time (min) 0.2 3.51 1.6 0.4 1.84 1.19 0.6 1.68 1.18

[0053] table 3

[0054] Fro...

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Abstract

The invention discloses an electrolytic membrane valve and a manufacturing method thereof. The electrolytic membrane valve comprises: a substrate, a conductive membrane, an electrolytic cathode, an electrolytic anode, an insulating layer, and a liquid storage device. Wherein the substrate and the liquid storage are connected together, and a conductive medium is arranged in the liquid storage. The electric film is arranged in the substrate, and the electrolysis cathode and the electrolysis anode are arranged on the surface of the substrate. An insulating layer is provided on the electrolysis cathode and the electrolysis anode. The steps of the manufacturing method of the electrolytic membrane include: depositing a conductive film on the opening of the substrate; printing the electrolytic anode on the substrate; printing the electrolytic cathode on the substrate; enclosing the electrolytic anode, the conductive film and the electrolytic cathode in the liquid reservoir. The invention avoids the generation of a large number of bubbles, makes the electrolysis more stable and can ensure the passing efficiency of the electrolysis microchannel.

Description

technical field [0001] The invention relates to the technical field of flow control, in particular to an electrolytic membrane valve and a manufacturing method thereof. Background technique [0002] In medical diagnostic devices or drug delivery devices, it is often necessary to control the infusion of fluid through individual pores or microchannels at predetermined time intervals. To achieve this, a variety of valve and pump technologies have been developed, many of which utilize flexible webs, pneumatic devices, complex capillary systems, heat or light actuated polymers, rigid beads, or molten expandable materials to drive fluid through channels . Fluid passage can also be blocked when required. However, most of these systems require the use of bulky and expensive peripheral braking equipment. But because these devices are not robust enough and unreliable, they cannot be used in portable handheld diagnostic devices or implanted drug delivery devices. [0003] Also in s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K99/00
CPCF16K99/003F16K2099/0073
Inventor 张永勇
Owner 山西云锦成文化投资有限公司
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