Novel Flexible PVDF-TrFE and PVDF-TrFE/ZnO Pressure Sensor: Fabrication, Characterization and Investigation.
Novel Flexible PVDF-TrFE and PVDF-TrFE/ZnO Pressure Sensor: Fabrication, Characterization and Investigation.
复制标题
新型柔性PVDF-TrFE和PVDF-TrFE/ZnO压力传感器：制造、表征和研究。
DOI：
10.3390/mi12060602
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发表时间：
2021-05-23
期刊：
影响因子：
3.4
通讯作者：
Zhou L
中科院分区：
文献类型：
--
作者：
Liu M;Liu Y;Zhou L
随着人类医疗器械的发展，具有出色灵敏度、灵活性、耐用性和生物相容性的智能传感器、电子皮肤和压力传感器越来越受到关注。为了开发一种新型的高灵敏度柔性压力传感器，制备了不同的聚偏氟乙烯-三氟乙烯（PVDF-TrFE）基复合膜，并对其进行了表征和测试。为了提高膜的β相结晶度和压电性，并为了比较，将不同浓度（PVDF-TrFE与ZnO的重量比为99：1、9：1）的纳米ZnO颗粒分别作为成核剂和介电材料加入到PVDF-TrFE聚合物中。为了促进β相晶体的形成，采用静电纺丝法制备膜。在静电纺丝后，对所制备的膜进行退火处理以增加β相晶体的尺寸和含量。然后，制造的PVDF-TrFE膜，作为核心传感层，分别内置到多个原型传感器的三明治结构。原型传感器的灵敏度进行了测试的自动点击。通过对原型传感器的激励产生电信号，利用LabVIEW搭建的测试平台对电信号进行采集。因此，结合ZnO纳米填料的添加和退火工艺，高灵敏度的压力传感器的制造。从原型传感器产生的最佳峰间电压响应为1.788 V，与原始PVDF-TrFE传感器相比，其显示出75%的增加。此外，人体脉搏波被捕获的原型传感器，显示出巨大的应用前景，在医疗设备。
With the development of human healthcare devices, smart sensors, e-skins, and pressure sensors with outstanding sensitivity, flexibility, durability and biocompatibility have attracted more and more attention. In this paper, to develop a novel flexible pressure sensor with high sensitivity, different poly (vinylidene fluoride-trifluoroethylene) (PVDF-TrFE)-based composite membranes were fabricated, characterized and tested. To improve the β-phase crystallinity and piezoelectricity of the membranes, and for the purpose of comparison, nano ZnO particles with different concentrations (99:1, 9:1 in a weight ratio of PVDF-TrFE to ZnO) were, respectively added into PVDF-TrFE polymer acting as a nucleating agent and dielectric material. To facilitate the formation of β-phase crystal, the membranes were fabricated by electrospinning method. After the electrospinning, an annealing process was conducted to the fabricated membranes to increase the size and content of β-phase crystal. Then, the fabricated PVDF-TrFE membranes, acting as the core sensing layer, were, respectively built into multiple prototype sensors in a sandwich structure. The sensitivity of the prototype sensors was tested by an auto-clicker. The stimulation of the auto-clicker on the prototype sensors generated electrical signals, and the electrical signals were collected by a self-built testing platform powered by LabVIEW. As a result, combining the addition of ZnO nanofillers and the annealing process, a highly sensitive pressure sensor was fabricated. The optimal peak-to-peak voltage response generated from the prototype sensor was 1.788 V which shows a 75% increase compared to that of the pristine PVDF-TrFE sensor. Furthermore, a human pulse waveform was captured by a prototype sensor which exhibits tremendous prospects for application in healthcare devices.
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影响因子：
5
作者：
Li JW;Huang CY;Chen KY;Chen JX;Hsu XY;Chen YF;Kuo CJ;Cheng CC;Suen MC;Chiu CW
通讯作者：
Chiu CW
影响因子：
4.6
作者：
Lee JS;Shin KY;Cheong OJ;Kim JH;Jang J
通讯作者：
Jang J
主要静电纺丝参数对静电纺PVDF纳米纤维β相结晶度的混合影响
影响因子：
4.1
作者：
Hu Jiyong;Zhu Yinda;Yang Xudong
通讯作者：
Yang Xudong
DOI：
10.1080/00222340902837527
发表时间：
2009-01-01
影响因子：
1.4
作者：
Sencadas, V.;Gregorio, R., Jr.;Lanceros-Mendez, S.
通讯作者：
Lanceros-Mendez, S.
影响因子：
4.6
作者：
Chen, Jiun-Tai;Chen, Wan-Ling;Yao, I-Chun
通讯作者：
Yao, I-Chun