Flexible electric actuator based on sprayed non-metal electrode and preparation method thereof

A non-metallic, flexible electrical technology, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, etc., can solve the cost Expensive, large-scale manufacturing is hindered, and device drive reliability is affected, achieving the effect of bandwidth guarantee and low cost

Pending Publication Date: 2022-05-13
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Metal materials such as Pt can have extremely strong conductivity when used as electrode materials, but their cost is expensive, and large-scale manufacturing is hindered by related micro-processing equipment. drive reliability will be greatly affected

Method used

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  • Flexible electric actuator based on sprayed non-metal electrode and preparation method thereof
  • Flexible electric actuator based on sprayed non-metal electrode and preparation method thereof
  • Flexible electric actuator based on sprayed non-metal electrode and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Example 1: The ionic polymer intermediate layer of the flexible electro-actuator is prepared in the following way:

[0050] 1. Weigh 10g TPU particles on a balance and put them in a Petri dish for use, and at the same time take 30g N, N-dimethylformamide (DMF) solution (according to the density of DMF at this temperature to convert the volume to 31.75mL) in a round-bottom flask and heat it in a water bath pot to 80 °C;

[0051] 2. Add magnetic stirrers to the round bottom flask to stir, and slowly add TPU particles (adding too fast is easy to make the semi-dissolved state of TPU particles piled up at the bottom of the flask, hindering stirring), stirring for about 1 hour until all TPU particles are dissolved in DMF;

[0052] 3. Add 120% (i.e., 12g) of the ionic liquid 1-ethyl-3-methylimidazolium bis (trifluoromethesulfonyl) imide ([EMIM] to the round bottom flask + [TFSI] - ), and magnetically stirred at 80 °C for 12 hours;

[0053] 4. The i-TPU solution made by the above s...

Embodiment 2

[0056] Example 2: Ultrasonic spray non-metallic electrode layer preparation method of flexible electro actuator is as follows:

[0057]1. Take 30g PEDOT: PSS aqueous dispersion solution, add 1.5g DMSO, 3.5g ethanol and 0.45g of ionic liquid, stir in 40°C water bath for 3 hours;

[0058] 2, weigh 0.13g carbon nanotubes (CNT) on the weighing paper with a balance to set aside, use a small spoon to slowly add CNT to the above-mentioned mixed solution that is being magnetically stirred, continue to stir for 1 hour and then treat with 90W ultrasound for 3 minutes, so that the CNT is evenly dispersed and the non-metallic electrode precursor solution is obtained;

[0059] 3. Use a 5mL syringe to aspirate the non-metallic electrode precursor solution and place it on the propulsion pump, set the propulsion speed to 0.8mL / min, drain the air in the inlet hose after running for a period of time, open the hot table (set temperature is 80 °C), open the compressed nitrogen valve connected to the...

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Abstract

The invention discloses a flexible electric actuator based on a sprayed non-metal electrode and a preparation method of the flexible electric actuator. The ionic polymer intermediate layer is prepared by dissolving TPU colloidal particles in a DMF solution, uniformly mixing the TPU colloidal particles with an ionic liquid according to a certain proportion, dripping the mixture on the surface of a specific glass container, and drying the mixture at a specific temperature program; the upper surface and the lower surface of the ionic polymer middle layer are respectively covered with a non-metal electrode layer through an ultrasonic spraying process; the non-metal electrode layer precursor solution is formed by uniformly mixing a non-metal conductive polymer material, a carbon nanotube, dimethyl sulfoxide, ethanol and ionic liquid according to a certain proportion, the electrode layer precursor solution is attached to the upper and lower surfaces of the ionic polymer intermediate layer through an ultrasonic spraying process, and the spraying process is continuously heated by a heating stage. According to the invention, not only can large-scale preparation and self-defined patterning be conveniently carried out at low cost, but also the actuating speed of the device can be well guaranteed.

Description

Technical field [0001] The present invention relates to a flexible electro actuator based on spraying non-metallic electrodes and a preparation method thereof, belonging to the field of flexible electronic devices. Background [0002] With the continuous evolution of interactive flexible electronic devices in the human body, flexible haptic sensing systems, including tactile biopsychological systems, haptic rendering systems and touch interfaces, have gradually attracted the attention of researchers. The "artificial muscle" that acts as an effector is an important component of flexible haptic induction systems, a field that overlaps multiple disciplines such as materials science, chemical engineering, mechanical engineering, electrical engineering, and chemistry. As a general term for a class of materials and devices, artificial muscle devices can be reversibly contracted, expanded or rotated in a component due to various external stimuli (such as voltage, current, pressure, tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L41/047H01L41/09H01L41/29B05B9/04B05B13/04B05B17/06B05D3/02
CPCB05B17/06B05B13/0426B05B9/04B05D3/0272H10N30/878H10N30/2047H10N30/06
Inventor 高兴迅李晟吴靖潘力佳施毅
Owner NANJING UNIV
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