Flexible and stretchable one-piece piezoelectric rubber and its preparation method

An all-in-one, piezoelectric technology for fabrication/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, material selection for piezoelectric or electrostrictive devices, etc. Direction, can solve the problems of poor stability performance, power generation cannot be clearly estimated, complicated production process, etc., and achieve the effect of low cost, good electrical signal output ability, and simple preparation method

Active Publication Date: 2020-06-09
ZHONGBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, stretchable energy generators mainly include two categories: friction generators and piezoelectric generators. Stretchable friction generators use stretchable polymers and stretchable electrodes to achieve energy conversion and power generation. However, due to The friction generator is easily affected by the external temperature and humidity, and the power generation cannot be clearly estimated
Due to the complex manufacturing process and poor stability of the existing stretchable piezoelectric generators, it cannot reflect the practical application value in the flexible field

Method used

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  • Flexible and stretchable one-piece piezoelectric rubber and its preparation method
  • Flexible and stretchable one-piece piezoelectric rubber and its preparation method
  • Flexible and stretchable one-piece piezoelectric rubber and its preparation method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0055] A flexible and stretchable one-piece piezoelectric rubber, including an electrode composite layer A, an electrode composite layer B and a piezoelectric composite layer. The specific preparation process is as follows:

[0056] Step 1. Preparation of stretchable insulating material

[0057] Proportion the mixed raw rubber and vulcanizing agent according to the ratio of 100:2, and knead on the mixer for 2 hours to make the mixed raw rubber and curing agent fully contact.

[0058] Step 2. Preparation of electrode composite layers A and B

[0059] Evenly mix the nano-conductive particles into the stretchable insulating material, the nano-conductive particles account for 60% of the total mass, knead on the mixer for 1 hour, and put the mixture into a steel plate grinding tool with a size of 50mm*50mm*1mm In the process, a flat vulcanization machine is used for vulcanization molding, the vulcanization temperature is 170°C, and the vulcanization time is 20 minutes.

[0060] S...

Embodiment 2

[0066] A flexible and stretchable one-piece piezoelectric rubber manufacturing method can also be prepared through the following steps:

[0067] Step 1. Preparation of stretchable insulating material

[0068] Proportion the mixed raw rubber and vulcanizing agent according to the ratio of 100:2, and knead on the mixer for 2 hours to make the mixed raw rubber and curing agent fully contact.

[0069] Step 2. Preparation of piezoelectric composite layer

[0070] Evenly mix the nano piezoelectric particles into the stretchable insulating material. The nano piezoelectric particles account for 70% of the total mass. After mixing on the mixer for 1 hour, put the mixture into a steel plate with a size of 50mm*50mm*1mm In the abrasive tool, use a flat vulcanization machine for vulcanization molding, the vulcanization temperature is 170 ° C, and the vulcanization time is 20 minutes.

[0071] Step 3, preparation of electrode composite layers A and B

[0072] Evenly mix the nano-conduct...

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Abstract

The invention discloses a flexible and stretchable integrated piezoelectric rubber, comprising an electrode composite layer A (1), an electrode composite layer B (2) and a piezoelectric composite layer (3), the electrode composite layer A (1) and the electrode compound layer B (2) are located on both sides of the piezoelectric compound layer (3). Both the electrode composite layer A (1) and the electrode composite layer B (2) are made by filling conductive particles into flexible polymer materials; the piezoelectric composite layer (3) is made by filling piezoelectric materials into Manufactured in flexible polymer materials. The flexible polymer materials constituting the piezoelectric composite layer and the electrode composite layer are the same, that is, the mixed silicone rubber with flexibility and stretchability after vulcanization. The invention can maintain a good electrical signal output capability under stretching conditions, and has stable electrical performance output after multiple stretches, so that the piezoelectric rubber has good stretchability, and is a wearable device for the human body and Large deformation applications provide more options.

Description

technical field [0001] The invention belongs to the technical field of piezoelectric nano power generation, and specifically relates to a novel flexible and stretchable integrated piezoelectric rubber and a preparation method thereof. Background technique [0002] The application of stretchable electronics in novel devices such as biomimetic robots, electronic skins, wearable devices, and implantable electronics has attracted extensive attention. Typically, these electronic devices are powered by rechargeable batteries / supercapacitors. However, traditional energy supply resources like chemical batteries have disadvantages such as poor flexibility, heavy mass, large volume, and short lifetime, which largely limit their practical applications in stretchable electronic devices. In order to better power stretchable electronic devices, many researchers have used various methods to try to develop reliable flexible batteries that can be integrated with flexible and stretchable ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L41/113H01L41/18H01L41/27
CPCH10N30/30H10N30/852H10N30/05
Inventor 丑修建侯晓娟朱杰何剑穆继亮耿文平薛晨阳郭雪培牛旭时张晶
Owner ZHONGBEI UNIV
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