Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (02): 61-68.doi: 10.13475/j.fzxb.20211100908

• Fiber Materials • Previous Articles     Next Articles

Preparation and performance of high sensitive ultra-compressed bio-based carbonized flexible pressure sensor

LIN Meixia1,2, WANG Jiawen1, XIAO Shuang1,2, WANG Xiaoyun1, LIU Hao1,2, HE Yin1,2()   

  1. 1. School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
    2. Institute of Smart Wearable Electronic Textiles, Tiangong University, Tianjin 300387, China
  • Received:2021-11-02 Revised:2021-12-02 Online:2022-02-15 Published:2022-03-15
  • Contact: HE Yin E-mail:heyin@tiangong.edu.cn

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Abstract:

In order to obtain flexible mechanical sensors with high sensitivity, wide response range and environment-friendliness, the top-down carbonized wood technology was adopted to prepare polyurethane/carbonized wood aerogel composite conductive materials, with balsa fir as the base material. The compression and resilience of the carbonized materials were improved by soaking the materials in polyurethane. Scanning Electronic microscopy and other instruments were used to characterize the apparent structure, thermal stability, mechanical and electrical properties of wood aerogels before and after carbonization, as well as the sensing properties of flexible pressure sensors. The results show that the carbonized wood aerogel has a unique three-dimensional arched layer structure with a porosity of 55.73% and high thermal stability and compressibility. The 4% polyurethane/wood carbide aerogels have demonstrated good sensing properties, with the sensitivity being 61.02 kPa-1, the hysteresis less than 4.87%, and the repeatability 10 000 cycles under the wide detection limit of 1-60 kPa. The flexible pressure sensor based on the aerogel can be used to monitor physiological signals and human movement behavior.

Key words: bio-based carbonized material, flexible pressure sensor, carbonized wood aerogel, thermoplastic polyurethane, porous material

CLC Number: 

  • TP212.2

Fig.1

Schematic diagram of preparation method of flexible pressure sensor based on TPU/carbonized wood aerogel"

Fig.2

SEM images at different stages. (a) Natural wood block; (b) Wood aerogel; (c) Carbonized wood aerogel"

Fig.3

TPU/carbonized wood aerogel skeleton and pore structure. (a) Skeleton 3-D image and skeleton section image; (b) Pore 3-D image and pore section image"

Fig.4

TGA curve before and after carbonization of aerogel"

Tab.1

Compression perfor mance of different materials"

压缩材料 压缩前
高度/cm		 压缩后
高度/cm		 压缩应
变/%
天然木块 1.20 0.879 26.7
聚氨酯/炭化
木气凝胶		 1.00 0.122 87.8

Fig.5

Stress-strain curve of carbonized wood aerogel at different TPU concentrations"

Fig.6

Relative resistance change rate of 2%, 4%, 6% TPU/carbonized wood aerogel"

Fig.7

Relative resistance change rate of 2%, 4% 6%, TPU/carbonized wood aerogel during load-unload cycles"

Fig.8

Repeatability of 4% TPU/carbonized wood aerogel"

Fig.9

Application of flexible pressure sensor in monitoring physiological signals of human body. (a) Throat phonation monitoring; (b) Monitoring of different respiratory states"

Fig.10

Human motion monitoring using flexible pressure sensors. (a) Finger flexion monitoring; (b) Knee flexion monitoring; (c) Elbow flexion monitoring; (d) Wrist flexion monitoring"

[1] ZHANG Y, HAN F, HU Y G, et al. Flexible and highly sensitive pressure sensors with surface discrete microdomes made from self-assembled polymer microspheres array[J]. Macromolecular Chemistry and Physics, 2020, 221(11): 2000073-2000081.
doi: 10.1002/macp.v221.11
[2] KARNAUSHENKO D, KANG T, BANDARI V K, et al. 3D self assembled microelectronic devices: concepts, materials, applications[J]. Advanced Materials, 2019, 1902994:1-30.
[3] 杨楠. 用于柔性电子材料的智能导电织物性能研究[D]. 上海:东华大学, 2011: 14-20.
YANG Nan. Research on the performance of intelligent conductive fabric for special electronic materials[D]. Shanghai: Donghua University, 2011:14-20.
[4] 王俊璞. 柔性导电纤维/织物应变传感行为与机理研究[D]. 西安:西北工业大学, 2014: 7-15.
WANG Junpu. Research on the strain sensing behavior and mechanism of flexible conductive fiber/fabric[D]. Xi'an: Northwestern Polytechnical University, 2014: 7-15.
[5] WANG C, XIA K, WANG H, et al. Advanced carbon for flexible and wearable electronics[J]. Advanced Materials, 2019, 31(9): 1-37.
[6] GUAN H, MENG J, CHENG Z, et al. Processing natural wood into a high-performance flexible pressure sensor[J]. ACS Applied Materials & Interfaces, 2020, 12(41): 46357-46365.
[7] GAO N, ZHANG X, LIAO S, et al. Polymer swelling induced conductive wrinkles for an ultrasensitive pressure sensor[J]. ACS Macro Letters, 2016, 5(7): 823-827.
doi: 10.1021/acsmacrolett.6b00338
[8] LI J, ORREGO S, PAN J, et al. Ultrasensitive, flexible, and low-cost nanoporous piezoresistive composites for tactile pressure sensing[J]. Nanoscale, 2019, 11(6): 2779-2786.
doi: 10.1039/C8NR09959F
[9] KANG D, PIKHITSA P V, CHOI Y W, et al. Ultrasensitive mechanical crack-based sensor inspired by the spider sensory system[J]. Nature, 2014, 516(7530): 222-226.
doi: 10.1038/nature14002
[10] QIU Z, WAN Y, ZHOU W, et al. Ionic skin with biomimetic dielectric layer templated from calathea zebrine leaf[J]. Advanced Functional Materials, 2018, 28(37): 1-9.
[11] 陈媛, 韩雁明, 范东斌, 等. 生物质纤维素基碳气凝胶材料研究进展[J]. 林业科学, 2019, 55(10): 88-98.
CHEN Yuan, HAN Yanming, FAN Dongbin, et al. Research progress of biomass cellulose-based carbon aerogel materials[J]. Forestry Science, 2019, 55(10): 88-98.
[12] WANG K, LIU X, TAN Y, et al. Two-dimensional membrane and three-dimensional bulk aerogel materials via top-down wood nanotechnology for multibehavioral and reusable oil/water separation[J]. Chemical Engineering Journal, 2019, 371:769-780.
doi: 10.1016/j.cej.2019.04.108
[13] ZHANG Q, CHEN C, CHEN W, et al. Nanocellulose-enabled, all-nanofiber, high-performance supercapa-citor[J]. ACS Applied Materials & Interfaces, 2019(1): 5919-5927.
[14] CHEN C, SONG J, ZHU S, et al. Scalable and sustainable approach toward highly compressible, anisotropic, lamellar carbon sponge[J]. Chem, 2018, 4(3): 544-554.
doi: 10.1016/j.chempr.2017.12.028
[15] WANG M, LI R N, CHEN G X, et al. Highly stretchable, transparent, and conductive wood fabricated by in situ photopolymerization with polymerizable deep eutectic solvents[J]. ACS Applied Materials & Interfaces, 2019, 11(15): 14313-14321.
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[1] . [J]. JOURNAL OF TEXTILE RESEARCH, 2004, 25(03): 116 -118 .
[2] . [J]. JOURNAL OF TEXTILE RESEARCH, 1986, 7(04): 33 -35 .
[3] CUI Yi-hua. Primary properties of basalt continuous filament[J]. JOURNAL OF TEXTILE RESEARCH, 2005, 26(5): 120 -121 .
[4] WEN Di-jiang;WANG Hui;ZHU Xin-sheng;SUN Jian-ping . Conformation and crystallinity of silk fibroin [J]. JOURNAL OF TEXTILE RESEARCH, 2005, 26(1): 110 -112 .
[5] CONG Honglian;GE Mingqiao;JIANG Gaoming. Computer simulation for jacquard warp knitted fabric[J]. JOURNAL OF TEXTILE RESEARCH, 2009, 30(01): 112 -116 .
[6] . [J]. JOURNAL OF TEXTILE RESEARCH, 1983, 4(12): 59 .
[7] . [J]. JOURNAL OF TEXTILE RESEARCH, 1999, 20(04): 62 -64 .
[8] LI Yongqiang;LIU Jinqiang;SHAO Janzhong. Effects of CF4 LTP-plasma treatment on properties of wool fabrics[J]. JOURNAL OF TEXTILE RESEARCH, 2009, 30(04): 69 -73 .
[9] . [J]. JOURNAL OF TEXTILE RESEARCH, 1994, 15(01): 47 .
[10] LIN Bin;LI Zhe. Influencing factors of drape raised quantity of bubble sleeve[J]. JOURNAL OF TEXTILE RESEARCH, 2009, 30(06): 104 -106 .
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