Bent flexible transparent strain sensor production method

A strain sensor, bending technology, applied in nanotechnology for sensing, electric/magnetic solid deformation measurement, nanotechnology, etc., to achieve the effect of low cost, high sensitivity and good flexibility

Inactive Publication Date: 2013-09-11
QINGDAO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, highly transparent strain sensors using polyaniline ultra-thin nano-films as functional layers have not been reported yet.

Method used

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  • Bent flexible transparent strain sensor production method
  • Bent flexible transparent strain sensor production method
  • Bent flexible transparent strain sensor production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] In this example, the polyaniline nano film is used as the functional layer to prepare a curved flexible transparent strain sensor, and the specific process steps are as follows:

[0022] (1) Select a polyester film as a flexible substrate, and ultrasonically clean the polyester film with acetone, absolute ethanol, and deionized water respectively to obtain a clean polyester film substrate;

[0023] (2) Dissolving camphorsulfonic acid in deionized water to form a camphorsulfonic acid aqueous solution with a camphorsulfonic acid concentration of 0.025 mol / liter; then adding aniline monomer into the camphorsulfonic acid aqueous solution, the concentration of aniline monomer is 0.02 mol / liter ; finally adding hydrogen peroxide with a concentration of 0.02 mol / liter to prepare a polyaniline reaction solution;

[0024] (3) Immerse the clean polyester film substrate vertically in the polyaniline reaction solution for 2 hours, then take it out after immersing it in m-cresol sol...

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Abstract

The invention belongs to the technical field of strain sensor production and relates to a bent flexible transparent strain sensor production method which includes that: camphorsulfonic acid is dissolved in deionized water to form a camphorsulfonic acid water solution, aniline monomers are filled into the camphorsulfonic acid water solution and then hydrogen peroxide is filled into the camphorsulfonic acid water solution to prepare polyaniline reaction liquid; a clean polyester film substrate is vertically immersed into the polyaniline reaction liquid to be soaked and then is taken out, is soaked in meta-cresol solutions and then is taken out, is rinsed through deionized water and is blown dry to obtain a polyaniline nanometer-film sample; the polyaniline nanometer-film sample is tailored to be square, is attached to a polyester film printed with electrodes and connected into a circuit and is packaged through a polydimethylsiloxane adhesive film; and a constant voltage power supply is connected with an ampere meter, and a bent flexible transparent strain sensor can be obtained. The production method is simple and reliable in principle, the produced sensor is good in transparent flexibility, unlikely to break, high in sensitivity, low in cost and environmentally friendly.

Description

Technical field: [0001] The invention belongs to the technical field of strain sensor preparation, and relates to a method for preparing a polyaniline nano-film flexible and bendable strain sensor by using an in-situ polymerization method, in particular to a method for preparing a curved flexible transparent strain sensor. Background technique: [0002] The strain sensor is a sensor that monitors the force deformation of an object. The commonly used sensing element is a resistive strain gauge. The resistive strain gauge is a sensing element that converts changes in mechanical strain into changes in resistance. For example, the Chinese patent (application number 201110210639.9) discloses a method based on zinc oxide nanowire / polystyrene nanofiber hybrid structure tensile mechanical sensor, Chinese patent (application number 201010260505.3) discloses a carbon nanotube / polymer composite film array flexible force sensitive sensor. The functional layer materials of existing stra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/16B82Y15/00
Inventor 张红娣唐成春龙云泽黄蓉李照建
Owner QINGDAO UNIV
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