Combined function device simultaneously having drive and sensing capabilities and preparation and application thereof

A functional device and sensing technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, electrical components, etc., can solve the problems of low actuation ability of PVDF , to achieve the effect of improving the control precision

Inactive Publication Date: 2014-09-10
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the shortcomings of the low actuation ability of PVDF in the prior art, the present invention provides a combined functional device with both driving and sensing capabilities and its preparation and application

Method used

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  • Combined function device simultaneously having drive and sensing capabilities and preparation and application thereof
  • Combined function device simultaneously having drive and sensing capabilities and preparation and application thereof
  • Combined function device simultaneously having drive and sensing capabilities and preparation and application thereof

Examples

Experimental program
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Embodiment 1

[0074] The first step is to prepare the ion exchange solution: raw materials: ion exchange solution: Nafion DE 520cs, the concentration is 5%wt, the solute is Nafion, and the solvent is a 1:1 mixture of sec-butanol and water. Curing agent dimethyl sulfoxide.

[0075]Put the glass mold filled with Nafion solution into a vacuum drying oven, control the temperature of the vacuum drying oven at 50°C, and dry the solution to a concentration of 25%. The volume ratio is DMSO: Nafion = 1:40. Add DMSO dropwise to the solution to make a casting solution. Put the casting solution in an ultrasonic cleaner and shake for 20 minutes to remove the bubbles in the solution. Place the casting solution in an oven at 50°C until the surface of the film is dry, raise the temperature of the oven to 100°C and keep it for 1 hour, then raise the temperature to 140°C and keep it for 3 hours, turn off the oven, and let it cool down to room temperature naturally.

[0076] Boil the carbon nanotubes in conc...

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Abstract

The invention discloses a combined functional device with both driving and sensing capabilities and its preparation and application. It includes a piezoelectric layer composed of PVDF film. A piezoelectric layer and an electrode layer are externally symmetrical; the piezoelectric layer is set so that the positive and negative electrodes on both sides of the ion exchange enhanced conductive layer are set in correspondence with each other; the ion exchange enhanced conductive layer is obtained by curing and forming an ion exchange solution, The ion exchange solution is a Nafion solution uniformly added with nano-scale conductive particles; the piezoelectric layer is a PVDF film; the electrode layer is a grid-shaped plurality of mutually independent microelectrodes made of metal Ag or Al , each microelectrode is insulated from each other, and is electrically connected to a driving source or a sensing source according to design requirements. It can output large deformation at a lower actuation voltage, and has a larger power-to-weight ratio.

Description

technical field [0001] The combined functional device of PVDF and ion exchange membrane with driving and sensing capabilities of the present invention can be widely used in the fields of aerospace, bionic engineering, biomedicine, energy collection and the like. Background technique [0002] Researchers have long focused on the study of hard materials with wide applications in engineering and mechanics, however, the mechanical structures of animal and plant organisms in nature are usually soft materials. Compared with traditional "hard materials" such as metals and ceramics, polymers are typical representatives of "soft materials". Soft materials can produce different degrees of deformation in response to external stimuli (such as mechanical stress, temperature, electromagnetic field, etc.) and show activity. Smart soft material is a new type of functional material that can sense external stimuli, judge and process it appropriately, and can be executed by itself. Compared w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/193H01L41/047H01L41/45
Inventor 熊克卞侃李伟朱程燕盛仪
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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