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Preparation method of flexible micron/nano pressure sensor on the basis of printing mode

A pressure sensor and sensor technology, applied in the field of sensors, can solve problems such as patent publications that have not yet been found, and achieve the effects of favorable environmental protection, pollution reduction, and simple processing technology

Inactive Publication Date: 2019-03-01
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • Preparation method of flexible micron/nano pressure sensor on the basis of printing mode
  • Preparation method of flexible micron/nano pressure sensor on the basis of printing mode
  • Preparation method of flexible micron/nano pressure sensor on the basis of printing mode

Examples

Experimental program
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Effect test

Embodiment 1

[0041] A method for preparing a flexible micro-nano pressure sensor based on a printing method, the steps are as follows:

[0042] (1) Weigh 0.5g, 1g, 1.5g, 2g, 3g, 4g polyacrylonitrile solid powder with an electronic balance, put them into six 100mL beakers respectively for later use, and paste labels to show the difference; Add 50ml of DMF solution into the polyacrylonitrile beaker respectively, and place the solution in a water bath for heating in a water bath. Take 15ml of the light yellow solution with a measuring cylinder and pour it into a glass plate of 12×12cm, and place the glass plate in a fume hood for heat treatment; the solvent in the PAN solution is volatilized by heating on a heating plate, and finally different thicknesses of Transparent film. In order to ensure a gentle volatilization rate, set the heating temperature to 45°C.

[0043] (2) Adhere the obtained transparent film to a 2.5×8cm glass slide through polyimide double-sided tape; in a dark environmen...

Embodiment 2

[0048] A method for preparing a flexible micro-nano pressure sensor based on a printing method, the method constructs a micro-nano layer and a conductive layer:

[0049] The micro-nano layer exposes and develops the designed micro-nano-patterned film sheet and polyacrylonitrile film to obtain a cured photosensitive adhesive with a micro-nano structure, while the unprotected area uses N,N-dimethylformaldehyde that can dissolve the film Carry out semi-melt-through etching with methyl formamide, and then perform ultrasonic treatment on it to remove the cured photosensitive adhesive to obtain a film with a concave-convex structure; the conductive layer uses a liquid phase method to attach multi-walled carbon nanotubes to the film by pulling. , and the devices were assembled in pairs, and a flexible micro-nano pressure sensor based on printing was obtained.

[0050] Preferably, the steps are as follows:

[0051] (1) Production of transparent PAN film;

[0052] (2) Realization of ...

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Abstract

The invention relates to a preparation method of a flexible micron / nano pressure sensor on the basis of the printing mode. The method includes construction of a micron / nano layer and a conductive layer; in the construction of the micron / nano layer, a film with designed micron / nano patterns and a polyacrylonitrile thin film are subjected to exposure and developing treatment to obtain a cured photo-sensitive resist having the micron / nano structure, wherein non-protected zones are subjected to self-melting-out etching by using N,N-dimethyl formamide that can dissolve the thin film, and ultrasonictreatment is carried out to remove the cured photo-sensitive resist, thus forming an uneven thin film; in the construction of the conductive layer, multi-wall carbon-nano tubes are adhered to the thin film in a dip-pulling manner, and the devices are assembled in a faced-in-pair manner. Through the simple process and low cost, the micron / nano structure is controllable and is easy to use. The method overcomes the defect of technical methods of micron / nano sensors, and has important researching and application value on large-scale industrial manufacturing of flexible pressure sensors.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to a method for preparing a flexible micro-nano pressure sensor based on printing. Background technique [0002] The use of flexible functional materials to make electronic devices is a current research hotspot, but there are still problems such as the preparation of nanomaterials is complicated, the price is high, the structure of organic semiconductor materials is unstable, the effect is not ideal, and the molecular weight of the same material is different. The choice of polymer materials is relatively simple, and it is generally used together with nanomaterials and organic semiconductor materials as flexible substrates or intermediate substances. For the method of attachment, the requirements for the chemical deposition environment are high, the chemical conditions are harsh, and the treatment of pollutants in the process of use is time-consuming and laborious. Evaporation has hi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B81C1/00B82Y15/00B82Y40/00
CPCB81B2201/0264B81C1/0038B81C1/00523B82Y15/00B82Y40/00
Inventor 韦会鸽王晖崔大鹏李昂袁碧玉
Owner TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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