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

A functional device and sensing technology, which is applied in the field of combined functional devices of PVDF and ion-exchange membranes, can solve the problems of low actuation ability of PVDF and achieve the effect of improving control accuracy

Inactive Publication Date: 2012-06-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0008] 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

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Embodiment 1

[0076]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.

[0077] 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.

[0078] Boil the carbon nanotubes in conc...

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Abstract

The invention discloses a combined function device simultaneously having drive and sensing capabilities and preparation and application of the device. The combined function device comprises a piezoelectric layer, wherein the piezoelectric layer consists of a PVDF (Polyvinylidene Fluoride) film; the composite material uses an ion exchange enhanced conductive layer as a center, the upper side and the lower side are symmetrically provided with the piezoelectric layer and an electrode layer from inside to outside; the piezoelectric layer is arranged in such a way that a positive electrode and a negative electrode at two sides mutually correspond to each other by using the ion exchange enhanced conductive layer as the center; the ion exchange enhanced conductive layer is obtained by curing and molding an ion exchange solution, and the ion exchange solution is Nafion solution with uniformly added nanograde conductive particles; the piezoelectric layer is the PVDF film; and the electrode layer can be a plurality of latticed mutually-separate microelectrodes which consist of metal Ag or Al, and each of the microelectrodes is mutually isolated and is electrically connected with a drive source or a sense source according to design demand. Large deformation can be outputted under a relatively low actuation voltage, therefore, the combined function device has a large 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 Applications(China)
IPC IPC(8): H01L41/193H01L41/26H01L41/04H10N30/857H10N30/098H10N30/80H10N30/87
Inventor 熊克卞侃李伟朱程燕盛仪
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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