CNT/PDMS介电层微结构成型及摩擦纳米发电机制备

doi:10.3901/JME.2021.15.177

机械工程学报 ›› 2021, Vol. 57 ›› Issue (15): 177-185.doi: 10.3901/JME.2021.15.177

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CNT/PDMS介电层微结构成型及摩擦纳米发电机制备

肖渊, 刘进超, 吕晓来, 李红英, 代阳

西安工程大学机电工程学院西安 710048

收稿日期:2020-08-14 修回日期:2021-04-11 出版日期:2021-08-05 发布日期:2021-11-03
通讯作者: 肖渊(通信作者),男,1975年出生,博士,教授,博士研究生导师,主要研究方向能量收集、微滴喷射打印、智能纺织品。E-mail:xiaoyuanjidian@xpu.edu.cn
作者简介:刘进超,男,1995年出生。主要研究方向为能量收集。E-mail:Liujinchaowyyxzh@163.com
基金资助:
西安市现代智能纺织装备重点实验室（2019220614SYS021CG043）资助项目。

Preparation of Triboelectric Nanogenerators with CNT-Containing and Micro-structure PDMS Composite Films

XIAO Yuan, LIU Jinchao, Lü Xiaolai, LI Hongying, DAI Yang

College of Mechanical and Electrical Engineering, Xi'an Polytechnic University, Xi'an 710048

Received:2020-08-14 Revised:2021-04-11 Online:2021-08-05 Published:2021-11-03

摘要/Abstract

摘要： 针对目前摩擦纳米发电机介电层表面微结构制作方法存在工艺流程复杂，成本高的问题，提出在聚二甲基硅氧烷（PDMS）中掺杂碳纳米管（CNT）提高介电常数，并以砂纸为模板快速在PDMS表面成型微结构，实现微结构CNT/PDMS弹性体膜摩擦纳米发电机介电层的制备。研究不同目数砂纸下PDMS表面微结构、CNT掺杂质量分数及载荷作用对摩擦纳米发电机性能输出的影响，测试发电机输出功率及耐久性。结果表明：表面微结构制作方法可增加介电层表面积提高发电机输出电压及电流，800目砂纸成型微结构时，摩擦纳米发电机输出最大；掺杂CNT可提高介电层电容值，CNT质量分数为1%时，电容值达到最大24.2 pF；制备的摩擦纳米发电机可产生最大瞬时功率密度1.23×10^-3W/m³，且经10 000次工作循环，表现出较好的耐久性。

关键词: 摩擦纳米发电机, 介电层, 砂纸模板, 微结构, CNT

Abstract: Due to the complex and high-cost fabrication process of the dielectric layer surface microstructure of Triboelectric Nanogenerators, in this paper, a novel method is proposed to obtain the dielectric layer by applying microstructural carbon nanotubes (CNT)/polydimethylsiloxane (PDMS) elastomer membrane triboelectric nanogenerators. Carbon nanotubes are doped in polydimethylsiloxane to increase the dielectric constant, and the microstructure is rapidly formed on the surface of PDMS with sandpaper as template. The experiments are conducted to investigate the influence of the mesh of sandpaper template, CNT doping content, and the effect of load on the output performance of the triboelectric nanogenerators. In addition, we measure the output power and durability of the generator. The results demonstrate the following three aspects. First, the surface microstructure manufacturing method could increase the surface area of dielectric layer to improve the output of the generators. When the microstructure is generated with 800 mesh sandpaper, the output of the Triboelectric Nanogenerators reaches a maximum. Second, doping CNT can increase the capacitance of dielectric layer. The capacitance reaches a maximum of 24.2 pF with 1% CNT. Third, the Triboelectric Nanogenerators with a surface area of 6×10^-4m² could produce a maximum instantaneous power density of 1.23×10^-3 w/m³, and good durability after 1 000 working cycles is shown.

Key words: triboelectric nanogenerators, dielectric layer, sandpaper template, micro-structure, CNT

中图分类号:

TS852

肖渊, 刘进超, 吕晓来, 李红英, 代阳. CNT/PDMS介电层微结构成型及摩擦纳米发电机制备[J]. 机械工程学报, 2021, 57(15): 177-185.

XIAO Yuan, LIU Jinchao, Lü Xiaolai, LI Hongying, DAI Yang. Preparation of Triboelectric Nanogenerators with CNT-Containing and Micro-structure PDMS Composite Films[J]. Journal of Mechanical Engineering, 2021, 57(15): 177-185.

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CNT/PDMS介电层微结构成型及摩擦纳米发电机制备

Preparation of Triboelectric Nanogenerators with CNT-Containing and Micro-structure PDMS Composite Films

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