Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA Coating

In recent years, the research of flexible sensors has become a hot topic in the field of wearable technology, attracting the attention of many researchers. However, it is still a difficult challenge to prepare low-cost and high-performance flexible sensors by a simple process. Three-dimensional spac...

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Main Authors: Xiujuan Wang, Xiaoyu Gao, Yu Wang, Xin Niu, Tanyu Wang, Yuanjun Liu, Fangxi Qi, Yaming Jiang, Hao Liu
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Polymers
Subjects:
Online Access:https://www.mdpi.com/2073-4360/14/5/859
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author Xiujuan Wang
Xiaoyu Gao
Yu Wang
Xin Niu
Tanyu Wang
Yuanjun Liu
Fangxi Qi
Yaming Jiang
Hao Liu
author_facet Xiujuan Wang
Xiaoyu Gao
Yu Wang
Xin Niu
Tanyu Wang
Yuanjun Liu
Fangxi Qi
Yaming Jiang
Hao Liu
author_sort Xiujuan Wang
collection DOAJ
description In recent years, the research of flexible sensors has become a hot topic in the field of wearable technology, attracting the attention of many researchers. However, it is still a difficult challenge to prepare low-cost and high-performance flexible sensors by a simple process. Three-dimensional spacer fabric (SF) are the ideal substrate for flexible pressure sensors due to its good compression resilience and high permeability (5747.7 mm/s, approximately 10 times that of cotton). In this paper, Thermoplastic polyurethane/Polypyrrole/Polydopamine/Space Fabric (TPU/PPy/PDA/SF) composite fabrics were prepared in a simple in-situ polymerization method by sequentially coating polydopamine (PDA) and Polypyrrole (PPy) on the surface of SF, followed by spin-coating of different polymers (thermoplastic polyurethane (TPU), polydimethylsiloxane (PDMS) and Ecoflex) on the PPy/PDA/SF surface. The results showed that the TPU/PPy/PDA/SF pressure sensors prepared by spin-coating TPU at 900 rpm at a concentration of 0.3 mol of pyrrole monomer (py) and a polymerization time of 60 min have optimum sensing performance, a wide working range (0–10 kPa), high sensitivity (97.28 kPa<sup>−1</sup>), fast response (60 ms), good cycling stability (>500 cycles), and real-time motion monitoring of different parts of the body (e.g., arms and knees). The TPU/PPy/PDA/SF piezoresistive sensor with high sensitivity on a highly permeable spacer fabric base developed in this paper has promising applications in the field of health monitoring.
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spelling doaj.art-42586321f5e2439a8fdb63be980f42aa2023-11-23T23:37:23ZengMDPI AGPolymers2073-43602022-02-0114585910.3390/polym14050859Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA CoatingXiujuan Wang0Xiaoyu Gao1Yu Wang2Xin Niu3Tanyu Wang4Yuanjun Liu5Fangxi Qi6Yaming Jiang7Hao Liu8School of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaSchool of Textile Science and Engineering, Tiangong University, Tianjin 300387, ChinaIn recent years, the research of flexible sensors has become a hot topic in the field of wearable technology, attracting the attention of many researchers. However, it is still a difficult challenge to prepare low-cost and high-performance flexible sensors by a simple process. Three-dimensional spacer fabric (SF) are the ideal substrate for flexible pressure sensors due to its good compression resilience and high permeability (5747.7 mm/s, approximately 10 times that of cotton). In this paper, Thermoplastic polyurethane/Polypyrrole/Polydopamine/Space Fabric (TPU/PPy/PDA/SF) composite fabrics were prepared in a simple in-situ polymerization method by sequentially coating polydopamine (PDA) and Polypyrrole (PPy) on the surface of SF, followed by spin-coating of different polymers (thermoplastic polyurethane (TPU), polydimethylsiloxane (PDMS) and Ecoflex) on the PPy/PDA/SF surface. The results showed that the TPU/PPy/PDA/SF pressure sensors prepared by spin-coating TPU at 900 rpm at a concentration of 0.3 mol of pyrrole monomer (py) and a polymerization time of 60 min have optimum sensing performance, a wide working range (0–10 kPa), high sensitivity (97.28 kPa<sup>−1</sup>), fast response (60 ms), good cycling stability (>500 cycles), and real-time motion monitoring of different parts of the body (e.g., arms and knees). The TPU/PPy/PDA/SF piezoresistive sensor with high sensitivity on a highly permeable spacer fabric base developed in this paper has promising applications in the field of health monitoring.https://www.mdpi.com/2073-4360/14/5/859space fabricPolypyrrole (PPy)piezoresistive sensorsthermoplastic polyurethane (TPU) coating
spellingShingle Xiujuan Wang
Xiaoyu Gao
Yu Wang
Xin Niu
Tanyu Wang
Yuanjun Liu
Fangxi Qi
Yaming Jiang
Hao Liu
Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA Coating
Polymers
space fabric
Polypyrrole (PPy)
piezoresistive sensors
thermoplastic polyurethane (TPU) coating
title Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA Coating
title_full Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA Coating
title_fullStr Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA Coating
title_full_unstemmed Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA Coating
title_short Development of High-Sensitivity Piezoresistive Sensors Based on Highly Breathable Spacer Fabric with TPU/PPy/PDA Coating
title_sort development of high sensitivity piezoresistive sensors based on highly breathable spacer fabric with tpu ppy pda coating
topic space fabric
Polypyrrole (PPy)
piezoresistive sensors
thermoplastic polyurethane (TPU) coating
url https://www.mdpi.com/2073-4360/14/5/859
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