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Preparation method of flexible tensile strain type sensor

A tensile strain and sensor technology, which is applied in the direction of transmitting sensing components and instruments using electric/magnetic devices, can solve problems such as small strain range, and achieve the effects of good product performance, expanded use range and fast response speed.

Inactive Publication Date: 2013-05-01
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

G. Fang et al. (J. Mater. Chem., 2011, 21, 18962-18966) reported a strain sensor based on electrospinning method, but because its fibers are mainly linear and in the form of non-woven fabric exists, so the strain range that can be tolerated is small

Method used

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  • Preparation method of flexible tensile strain type sensor
  • Preparation method of flexible tensile strain type sensor
  • Preparation method of flexible tensile strain type sensor

Examples

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Embodiment

[0016] The specific steps for preparing a flexible stretchable strain sensor in this example include preparation of a flexible receiving substrate, preparation and injection of an electrospinning solution into a spinning needle, preparation of twisted micro-nano fibers by electrospinning, and performance testing of the sensor Four steps:

[0017] (1) Preparation of a flexible receiver substrate: fix an elastic polymer material substrate on a glass sheet, then place it on an aluminum foil connected to the negative electrode of the power supply as a flexible receiver substrate, and use a clean, dry paper Cover it, and its polymer material substrate includes a rubber sheet and a plastic sheet, and its geometric dimensions are length × width × thickness = 3-5 × 2-3 × 0.1-0.5cm, the present embodiment chooses 3.5cm × 2cm × 0.1 cm thin slices of balloon skin;

[0018] (2) Preparation and injection of electrospinning solution into spinning needle: the selected spinning solution is p...

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Abstract

The invention relates to a preparation method of a flexible tensile strain type sensor and belongs to the technical field of sensor preparation. The preparation method concretely comprises four steps including flexible receiving set substrate preparation, electrostatic spinning solution preparation and filling into spinning needle tubes, distortion structure micro-nanometer fiber preparation by a electrostatic spinning method and sensor performance test: an elastic macromolecule material substrate is fixedly arranged on a glass sheet, and then, the glass sheet is placed on an aluminum foil of a power supply negative electrode; PVP (polyvinylpyrrolidone) ethanol solution of PEDOT / PSS (poly-3,4-ethylenedioxythiophene / polystyrolsulfon acid) blended with DMSO (dimethyl sulfoxide) is prepared as spinning solution and is filled into spinning needle tubes; distortion structure micro-nanometer fibers are prepared by selecting a spinning spraying head reciprocating linear motion type electrostatic spinning device; and the prepared sensor is subjected to performance test. The preparation method is simple, the principle is reliable, the preparation cost is low, the product performance is good, the operation is simple and convenient, the yield is high, and the environment is friendly.

Description

Technical field: [0001] The invention belongs to the technical field of sensor preparation, and relates to a method for preparing a flexible and stretchable strain sensor, which uses a novel electrospinning technology to realize the preparation of a flexible and stretchable strain sensor based on twisted micro-nano fibers. Background technique: [0002] With the development of science and technology, people's demand for micro-nano sensors is increasing. Among them, the strain sensor is a sensor that can convert non-electrical physical quantities such as displacement, force, pressure, acceleration and deformation into changes in resistance value. Used in metallurgy, electric power, transportation, petrochemical, commercial, biomedical, and national defense industries; most of the commonly used micro-nano strain sensors use inorganic substances such as silicon and zinc oxide as the main material. Due to the limited performance of the material itself, once it occurs deformation...

Claims

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Application Information

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IPC IPC(8): G01D5/16G01D18/00
Inventor 孙彬龙云泽刘术亮黄渊源林大鹏张红娣张君诚
Owner QINGDAO UNIV
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