Super-hydrophobic paper-based strain sensor and preparation method thereof
A strain sensor and super-hydrophobic technology, applied in the field of strain sensors, can solve the problems of non-environmental protection costs, poor hydrophobicity of flexible strain sensors, etc., and achieve the effect of poor hydrophobicity, super-hydrophobic price, and high sensitivity
Active Publication Date: 2020-05-22
JILIN UNIV
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Problems solved by technology
[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a super-hydrophobic paper-based strain sensor and its preparation method, aiming to solve the problems of poor hydrophobicity, environmental protection or high cost of existing flexible strain sensors
Method used
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Embodiment 1
[0048] (1) Preparation of a superhydrophobic paper-based strain sensor
[0049] (1.1) Provide paper base: Take 6-inch / 200g Kodak photo paper and cut it into strips with a size of 3cm×1cm;
[0050] (1.2) Prepare regular-shaped grooves on the upper surface of the paper base to form a groove array: prepare the grooves on the rougher side of the strip paper base (the rougher side is good for material adsorption) by surface cutting Groove array: the width of the groove is 80 μm, the distance between adjacent grooves is 700 μm, and the depth of the groove is 100 μm;
[0051] (1.3) Next, prepare a metal conductive layer on the paper substrate provided with a regular-shaped groove array: adopt Ag particles to prepare an Ag conductive layer on the strip-shaped paper substrate by surface sputtering, with a thickness of 100 nm;
[0052] (1.4) Prepare the first electrode and the second electrode at both ends of the metal conductive layer: stick copper electrode tape on the two ends of th...
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Abstract
The invention discloses a super-hydrophobic paper-based strain sensor and a preparation method thereof. The super-hydrophobic paper-based strain sensor comprises a paper substrate, a groove array, ofa regular shape, which is concavely arranged in the paper substrate, a metal conducting layer covering the groove array and the paper substrate, first and second electrodes arranged at the two ends ofthe metal conducting layer respectively, and a super-hydrophobic conducting layer covering the first electrode, the second electrode and the metal conducting layer. The material of the super-hydrophobic conducting layer comprises silicon dioxide, polydimethylsiloxane and a conductive material. The strain sensor is arranged on the paper substrate, and the super-hydrophobic conductive layer formedby the silicon dioxide, the polydimethylsiloxane and the conductive material is arranged on the surface of the strain sensor, so that the obtained super-hydrophobic paper-based strain sensor has the characteristics of environmental protection, super-hydrophobicity and low cost while maintaining flexibility and high sensitivity.
Description
technical field [0001] The invention relates to the technical field of strain sensors, in particular to a super-hydrophobic paper-based strain sensor and a preparation method thereof. Background technique [0002] With the vigorous development of flexible electronics, there are more and more requirements for the performance of flexible electronic devices (such as strain sensors) in various fields, among which the most prominent are environmental protection, low cost and hydrophobicity. As we all know, the environmental pollution caused by the phenomenon of electronic waste seriously threatens the health of residents, and the plastics and metals in electronic devices will cause damage to the environment in which human beings live. In addition, since the processing technology of flexible electronics is not yet as mature as traditional electronics, the required preparation process is complicated and the technical requirements are high, resulting in high cost of flexible electro...
Claims
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IPC IPC(8): G01B7/16
CPCG01B7/18
Inventor 韩志武刘林鹏牛士超张俊秋侯涛孙涛张昌超孟宪存刘振宁
Owner JILIN UNIV