基于熔喷非织造材料的温度传感器制备及其传感性能

doi:10.13475/j.fzxb.20220603201

纺织学报 ›› 2024, Vol. 45 ›› Issue (05): 138-146.doi: 10.13475/j.fzxb.20220603201

基于熔喷非织造材料的温度传感器制备及其传感性能

王楠¹^,², 孙辉²^,³(), 于斌²^,³, 许磊²^,³^,⁴, 朱祥祥²^,³

1.浙江理工大学材料科学与工程学院, 浙江杭州 310018
2.浙江理工大学纺织科学与工程学院(国际丝绸学院), 浙江杭州 310018
3.浙江理工大学产业用纺织材料制备技术浙江省重点实验室, 浙江杭州 310018
4.苏州经贸职业技术学院, 江苏苏州 215009

收稿日期:2023-07-20 修回日期:2024-01-26 出版日期:2024-05-15 发布日期:2024-05-31
通讯作者: 孙辉(1976—),女,讲师,博士。主要研究方向为纺织材料的功能化改性。E-mail:sunhui@zstu.edu.cn。
作者简介:王楠(1995—),女,硕士生。主要研究方向为智能可穿载纺织品。
基金资助:
浙江省自然科学基金项目(LY19E030011);江苏省自然科学基金项目(BK20201182)

Preparation and sensing performances of flexible temperature sensor prepared from melt-blown nonwoven materials

WANG Nan¹^,², SUN Hui²^,³(), YU Bin²^,³, XU Lei²^,³^,⁴, ZHU Xiangxiang²^,³

1. College of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
2. College of Textile Science and Engineering (International Insititute of Silk), Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
3. Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
4. Suzhou Vocational College of Economics and Trade, Suzhou, Jiangsu 215009, China

Received:2023-07-20 Revised:2024-01-26 Published:2024-05-15 Online:2024-05-31

摘要/Abstract

摘要：

为结合织物的柔软性、舒适度和耐磨性制备低成本、高性能的可穿戴温度传感器,以超声波处理工艺将不同浓度比的聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸(PEDOT:PSS)和碳纳米管(CNTs)共同负载在聚对苯二甲酸丁二酯(PBT)熔喷非织造材料表面,制备了PEDOT:PSS/CNTs/PBT熔喷非织造材料的温度传感器。借助扫描电子显微镜、X 射线衍射仪和傅里叶变换红外光谱仪对温度传感器的微观形貌、化学结构进行表征与分析,并对其热稳定性能、传感性能和力学性能进行测试与研究。结果表明,所制备的温度传感器在25~80 ℃范围内,灵敏度可达-0.71%/℃,响应时间较快(18 s),线性度较好(R²=0.99),迟滞度低至4.98%,具有良好的重复使用性及长期稳定性,并且在37~38 ℃的温度范围内感应精度可达0.1 ℃。所制备的温度传感器能够对环境温度和人体表面温度进行实时稳定监测,具有广阔的应用前景。

关键词: 聚(3,4-乙烯二氧噻吩)-聚苯乙烯磺酸, 聚苯二甲酸丁二酯, 熔喷非织造材料, 碳纳米管, 温度传感器

Abstract:

Objective Most of high sensitivity temperature sensors are prepared from membranes, metals and other substrate materials, and flexible textile materials with good processing performance and low cost are increasingly used much for making flexible sensors, such as wearable electronics for e-skin and health monitoring and flexible temperature sensors which have advantages in simple structure, wide range of applications and low preparation cost. This research explores the preparation and sensing performance of flexible textile temperature sensors prepared from melt-blown nowoven textiles.

Method PEDOT:PSS/CNTs/PBTNW flexible temperature sensors were prepared by co-loading poly(3,4-ethylenedioxythiophene)-poly(styrene sulfonic acid) (PEDOT:PSS) and carbon nanotubes (CNTs) with different concentration ratios on the surface of PBT melt-blown nonwoven (PBTNW) by a simple ultrasonic process. The method is simple, and the temperature sensor can monitor the human body as well as the environment temperature, which expands the application field of textile materials.

Results SEM evaluation showed that the interstices of PBTNW loaded with PEDOT:PSS polymer were filled with a small number of one-dimensional CNTs, forming a one-dimensional and two-dimensional structure, which in turn formed a three-dimensional networls structure easy for electrical conductivity and temperature sensing. The PEDOT:PSS and the CNTs formed a complete conductive network with the PBTNW as the backbone. The presence of the polymer PEDOT:PSS mitigated the agglomeration of CNTs better than loading CNTs alone. The temperature sensing test results showed that the prepared temperature sensor achieved a sensitivity of up to -0.71%/℃ in the range of 25-80 ℃, fast response time (18 s), good linearity (R²=0.99), hysteresis as low as 4.98%, good reusability as well as a long term stability, and a sensing accuracy of 0.1 ℃ in the temperature range of 37-38 ℃. The thermal stability and mechanical properties of PBTNW and PEDOT:PSS/CNTs/PBTNW with different loading ratios were analyzed. After loading PEDOT:PSS and different ratios of PEDOT:PSS and CNTs on the surface of PBTNW, the thermal stability and mechanical properties of the prepared flexible temperature sensors were found to be the best when the ratio of PEDOT:PSS to CNTs was 1∶0.6.

Conclusion Fast response time and high sensitivity gives flexible temperature sensors not only in the environmental temperature measurement of the possibility, but also expand its possibility in the field of human body temperature monitoring. It is indicated that textile materials as a lower cost and simple processing methods of flexible materials have the prospect for applications in the field of flexible sensors. The reliability of the prepared temperature sensors was proved experimentally. However, it is difficult to have high strength due to the characteristics of nonwoven materials themselves, which limits the long-term use of nonwoven temperature sensors.

Key words: poly(3,4-ethylene dioxythiophene)-polystyrene sulfonic acid, polybutylene terephalate, melt-blown nonwoven, carbon nanotube, flexible temperature sensor

中图分类号:

TS176

王楠, 孙辉, 于斌, 许磊, 朱祥祥. 基于熔喷非织造材料的温度传感器制备及其传感性能[J]. 纺织学报, 2024, 45(05): 138-146.

WANG Nan, SUN Hui, YU Bin, XU Lei, ZHU Xiangxiang. Preparation and sensing performances of flexible temperature sensor prepared from melt-blown nonwoven materials[J]. Journal of Textile Research, 2024, 45(05): 138-146.

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链接本文: http://www.fzxb.org.cn/CN/10.13475/j.fzxb.20220603201

http://www.fzxb.org.cn/CN/Y2024/V45/I05/138

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试样名称	热分解温度/℃
试样名称	T_0.95	T_0.95
PBTNW	300.2	442.2
PEDOT:PSS/PBTNW	302.0	449.5
PEDOT:PSS/CNTs_0.3/PBTNW	320.5	450.4
PEDOT:PSS/CNTs_0.6/PBTNW	342.2	456.3
PEDOT:PSS/CNTs_0.9/PBTNW	325.3	446.5

试样名称	断裂强度/ (N·tex^-1)	断裂伸长率/%
PBTNW	8.301±0.220	337.9±3.12
CNTs/PBTNW	6.640±0.550	295.4±4.12
PEDOT:PSS/PBTNW	8.940±0.320	271.3±3.14
PEDOT:PSS/CNTs_0.3/PBTNW	10.311±0.680	339.6±5.23
PEDOT:PSS/CNTs _0.6/PBTNW	12.421±1.102	342.6±2.98
PEDOT:PSS/CNTs_0.9/PBTNW	13.381±0.930	299.4±3.17

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基于熔喷非织造材料的温度传感器制备及其传感性能

Preparation and sensing performances of flexible temperature sensor prepared from melt-blown nonwoven materials

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