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Pressure sensor and preparation method and use thereof

A pressure sensor and electrode layer technology, applied in the field of sensors, can solve the problems of not paying attention to the optical transparency of sensors, achieve good optical transparency and flexibility, improve sensitivity, and improve transparency

Inactive Publication Date: 2019-05-28
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this scheme makes the pressure sensor flexible, it does not pay attention to the optical transparency of the sensor

Method used

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  • Pressure sensor and preparation method and use thereof
  • Pressure sensor and preparation method and use thereof
  • Pressure sensor and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This embodiment prepares the pressure sensor according to the following method:

[0058] (1) Mix and stir cellulose acetate and 1-ethyl-3-methylimidazolium hexafluorophosphate with a mass ratio of 1:1, and dry at 80°C to form a film to obtain a highly transparent dielectric layer.

[0059] (2) Coating a layer of metallic silver nanowires on one side of the transparent polyimide film by scraping the film to obtain a transparent electrode layer.

[0060] (3) The transparent dielectric layer obtained in step 1 is sandwiched between two transparent electrode layers obtained in step 2, and the surroundings are fixed with epoxy resin to obtain a flexible transparent high-sensitivity pressure sensor.

[0061] The pressure sensor prepared in this embodiment is composed of a dielectric layer and a first electrode layer and a second electrode layer respectively located on both sides of the dielectric layer. The dielectric layer includes an ion active material and a membrane mater...

Embodiment 2

[0069] This embodiment prepares the pressure sensor according to the following method:

[0070] (1) The polymethyl methacrylate and ion gel with a mass ratio of 1:2 were shaken and mixed evenly, and pressed at 80°C to form a film to obtain a highly transparent dielectric layer.

[0071] (2) Coating a layer of metallic gold nanowires on one side of the transparent polyester film by scraping the film to obtain a transparent electrode layer.

[0072] (3) The transparent dielectric layer obtained in step 1 is sandwiched between two transparent electrode layers obtained in step 2, and the surroundings are fixed with butyl rubber to obtain a flexible transparent high-sensitivity pressure sensor.

[0073] The pressure sensor prepared in this embodiment is composed of a dielectric layer and a first electrode layer and a second electrode layer respectively located on both sides of the dielectric layer. The dielectric layer includes an ion active material and a membrane material, and th...

Embodiment 3

[0076] This embodiment prepares the pressure sensor according to the following method:

[0077] (1) Mix polylactic acid with a mass ratio of 1:3 and 1-ethyl-3-methylimidazolium phosphate dimethyl salt evenly, press at 150°C to form a film, and obtain a highly transparent dielectric layer.

[0078] (2) Coating a layer of metal copper nanowires on one side of the transparent polyethylene film by scraping the film to obtain a transparent electrode layer.

[0079](3) Sandwich the transparent dielectric layer obtained in step 1 between two transparent electrode layers obtained in step 2, and fix it with scotch tape around to obtain a flexible transparent high-sensitivity pressure sensor.

[0080] The pressure sensor prepared in this embodiment is composed of a dielectric layer and a first electrode layer and a second electrode layer respectively located on both sides of the dielectric layer. The dielectric layer includes an ion active material and a membrane material, and the ion a...

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Abstract

The invention provides a pressure sensor and a preparation method and use thereof. The pressure sensor comprises a dielectric layer, a first electrode layer and a second electrode layer; the first electrode layer and the second electrode layer are located at both sides of the dielectric layer respectively, and the dielectric layer comprises an ionic active material. The preparation method comprises the steps of 1) preparing the dielectric layer, wherein the dielectric layer comprises the ionic active material; 2) preparing the first electrode layer and the second electrode layer; 3) fixing thefirst electrode layer and the second electrode layer to both sides of the dielectric layer respectively to obtain the pressure sensor. The sensor has the advantages of flexibility, high transparencyand high sensitivity, and can be applied to manufacturing flexible touch sensors or human-computer interaction interfaces or the like.

Description

technical field [0001] The invention belongs to the technical field of sensors, and relates to a sensor and its preparation method and application, in particular to a pressure sensor and its preparation method and application. Background technique [0002] With the continuous development of science and technology, more and more people pay more and more attention to the convenient and intuitive visual human-machine interface system. Among them, the optically transparent sensor device is a crucial part of the system. The structure of the capacitive sensor is simple and the sensitivity is high, but it is found in the research process that it is difficult to maintain the high sensitivity and high transparency of the capacitive sensor. First of all, some common transparent materials, such as glass, indium tin oxide, polydimethylsiloxane, transparent plastic film, etc., have limited compression properties, resulting in poor pressure sensing ability, and the direct preparation of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/14
Inventor 郭传飞刘庆先王泉
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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