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Ionic paper, ionic flexible pressure sensor and preparation method thereof

A pressure sensor, electronic technology, applied in the field of sensors, can solve the problems of insufficient response linearity and foldability, and achieve the effect of excellent foldability and high sensitivity

Active Publication Date: 2020-08-28
TACSENSE SHENZHEN
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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 a kind of ionic paper, aiming to solve the problems of insufficient linearity and foldability of the current ionic pressure sensor

Method used

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  • Ionic paper, ionic flexible pressure sensor and preparation method thereof
  • Ionic paper, ionic flexible pressure sensor and preparation method thereof
  • Ionic paper, ionic flexible pressure sensor and preparation method thereof

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preparation example Construction

[0076] In one embodiment, such as figure 1 , image 3 As shown, the method for preparing the electronic flexible pressure sensor includes the following steps:

[0077] S01. Provide an ion paper substrate, and prepare a patterned electrode on the ion paper substrate according to a preset electrode pattern, wherein the ion paper substrate is the ion paper according to an embodiment of the present invention;

[0078] S02. Adhesives are set at the design part of the ion paper substrate, and the ion paper substrate is folded to make the ion area and the electrode area face to face to form a preset electrode pattern to obtain Fold the flexible pressure sensor.

[0079] Specifically, in the above step S01, the ion paper substrate is the ion paper according to the embodiment of the present invention, which can be prepared by various methods.

[0080] In some embodiments, the preparation method of the ion paper substrate is:

[0081] S111. Weigh each component according to the formula of the io...

Embodiment 1

[0112] A preparation method of a foldable electronic type flexible pressure sensor includes the following steps:

[0113] Mix 1-butyl-3-methylimidazole bistrifluoromethanesulfonimide salt ionic liquid, polyvinylidene fluoride, and nitromethylpyrrolidone at a mass ratio of 1:2:20 to prepare an ionic coating;

[0114] Dip the dust-free paper into the ionic coating, pull it up at a constant speed of 1mm / s, and then place it on the surface of the flexible polyester film;

[0115] Place the dust-free paper coated with ion coating in a blast oven and dry it at a temperature of 100°C for 3 hours. After taking it out, the ion paper is obtained;

[0116] Screen-print conductive silver paste on the design area of ​​the ion paper surface to form a specific electrode pattern;

[0117] Laminate pressure-sensitive double-sided adhesive on the design area of ​​the ion paper surface; fold the ion paper so that the electrodes / ion paper / electrodes are in face-to-face contact with each other to form a san...

Embodiment 2

[0121] A preparation method of a foldable electronic type flexible pressure sensor includes the following steps:

[0122] Mix 1-ethyl-3-methylimidazole hexafluoromethanesulfonate ionic liquid, polyether polyurethane 75A, fumed silica and dimethyl sulfoxide in a mass ratio of 1:1:0.1:6, Prepared into ionic ink;

[0123] At 80g / m 2 On the surface of the paper, through the screen printing method, the conductive carbon paste is printed in the design area to obtain the interdigital electrode pattern to form the electrode area; at 80g / m 2 On the surface of the paper, the ionic ink is printed on the design area by screen printing to form the ionic area;

[0124] At 80g / m 2 On the surface of the paper, by screen printing, the pressure-sensitive acrylic adhesive emulsion is printed on the design area to form the adhesive area; the printed paper is placed in a blast oven and dried at a temperature of 100 ℃ Dry for 3 hours;

[0125] Through folding, the electrode area and the ion area are in fa...

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Abstract

An ionic paper, and an ion-electron flexible pressure sensor and a preparation method therefor. The ionic paper is made of a cellulose-reinforced ion gel composite. The cellulose-reinforced ion gel composite comprises a liquid ion material, a polymer and a cellulose. The cellulose-reinforced ion gel composite comprises the following components in percentages by weight based on 100% of the total weight of the composite: 1-80% of the liquid ion material; 1-80% of the polymer; and 19-80% of the cellulose, wherein the cellulose is selected from papermaking celluloses. Using the cellulose-reinforced ion gel composite as a raw material to prepare the ionic paper can provide the ionic paper with excellent ionic conductivity, weather resistance and foldability. The ionic paper can be used as a functional material for a flexible pressure sensor, thereby producing a foldable and cuttable flexible pressure sensor.

Description

Technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to an ion paper and a preparation method of an ion-electron flexible pressure sensor made of ion gel composite materials. Background technique [0002] As people's expectations for bionic tactile sensing technology in future applications such as intelligent robotics, medical prostheses and nerve repair, and consumer electronics are becoming stronger, new portable, foldable, attachable, and wearable flexible electronic devices His research has received extensive attention from domestic and foreign researchers, and has quickly become one of the most important frontier research fields in science and technology. For the needs of these emerging applications, flexible materials have received close attention and extensive use by researchers due to their good adaptability to different surface materials and shapes. Therefore, flexible pressure sensing technology emerged as the times ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/14D21H11/00D21H19/14D21H19/20D21H19/22B41M1/12B41M5/00B41M7/00
CPCB41M1/12B41M5/00B41M7/00D21H11/00D21H19/14D21H19/20D21H19/22G01L1/14
Inventor 常煜彭涛李森王连建
Owner TACSENSE SHENZHEN
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