Abstract
With the development of wearable electronic devices, flexible sensors have received widespread attention, especially for high sensitivity sensors. However, sensors prepared by conventional processes such as hot pressing, vacuum filtration and so forth are not sensitive enough to meet the needs of healthy detection. In order to solve this problem, we proposed an hydrogel-based carbon nanotube/graphene nanoplatelet/ polydimethylsiloxane (CNT/GNP/PDMS are named as CGP) pressure sensor prepared by combining direct ink writing three-dimensional (DIW 3D) printing and freeze-drying method. The effect of number of matrix infiltration treatment on mechanical properties is also discussed. By utilizing the designability of the 3D printing, multiple CGP sensor samples can be prepared simultaneously, saving time cost in preparation process. The CGP sensors with 6 mm thickness have excellent sensitivity (The maximum gauge factor (GF) is 18.49), which is higher than that of 4 mm thicknesses and other preparation method like mold method. Meanwhile, we find that CGP sensor with 6 mm thickness has good cycling performance in a 5000-cycled test. Furthermore, a series of performance tests are also systematically conducted. Consequently, prepared CGP sensor has the potential to be applied in human motion and healthy detection due to high sensitivity, having excellent performance.
Similar content being viewed by others
Data Availability
Data will be made available on request.
References
Liu Y, Pharr M, Salvatore GA (2017) Lab-on-skin: a review of flexible and stretchable electronics for wearable health monitoring. ACS Nano 11(10):9614–9635
Li Y, Chen W, Lu L (2020) Wearable and biodegradable sensors for human health monitoring. ACS Appl Bio Mater 4(1):122–139
Gao Y et al (2019) Flexible hybrid sensors for Health Monitoring: materials and mechanisms to render wearability. Adv Mater 32(15):02133
Gao W et al (2019) Flexible electronics toward wearable sensing. Acc Chem Res 52(3):523–533
Wang J et al (2023) Flexible iontronic sensors with high-precision and high-sensitivity detection for pressure and temperature. Compos Commun 39:101544
Li C et al (2023) Recyclable thermally conductive poly(butylene adipate-co‐terephthalate) composites prepared via forced infiltration. SusMat 3(3):345–361
Tang L et al (2023) Flexible and robust functionalized boron nitride/poly(p-phenylene benzobisoxazole) nanocomposite paper with high thermal conductivity and outstanding electrical insulation. Nanomicro Lett 16(1):38
Li R et al (2021) Research progress of flexible capacitive pressure sensor for sensitivity enhancement approaches. Sens Actuators A: Phys 321:112425
Luo Y et al (2019) Flexible capacitive pressure sensor enhanced by tilted micropillar arrays. ACS Appl Mater Interfaces 11(19):17796–17803
Yang J et al (2023) Layered structural PBAT composite foams for efficient electromagnetic interference shielding. Nanomicro Lett 16(1):31
Ji F et al (2022) Flexible piezoresistive pressure sensors based on nanocellulose aerogels for human motion monitoring: A review. Compos Commun 35:101351
Wang Y et al (2022) Ti3C2Tx MXene-based flexible piezoresistive physical sensors. ACS Nano 16(2):1734–1758
Ma Y et al (2017) A highly flexible and sensitive piezoresistive sensor based on MXene with greatly changed interlayer distances. Nat Commun 8(1):1207
Chen Z et al (2017) Flexible piezoelectric-induced pressure sensors for static measurements based on nanowires/graphene heterostructures. ACS Nano 11(5):4507–4513
Luo J et al (2021) Flexible piezoelectric pressure sensor with high sensitivity for electronic skin using near-field electrohydrodynamic direct-writing method. Extreme Mech Lett 48:101279
Wei C et al (2024) Hollow engineering of sandwich NC@Co/NC@MnO2 composites toward strong wideband electromagnetic wave attenuation. J Mater Sci Technol 175:194–203
Yi Y et al (2022) Flexible piezoresistive strain sensor based on CNTs–polymer composites: a brief review. Carbon Lett 32(3):713–726
Lamba M et al (2022) Graphene piezoresistive flexible MEMS force sensor for bi-axial micromanipulation applications. Microsyst Technol 28(7):1687–1699
Fan X et al (2023) Low dielectric constant and highly intrinsic thermal conductivity fluorine-containing epoxy resins with ordered liquid crystal structures. SusMat 3(6):877–893
Tian H et al (2015) A graphene-based resistive pressure sensor with record-high sensitivity in a wide pressure range. Sci Rep 5:8603
Shi J et al (2018) Multiscale hierarchical design of a flexible piezoresistive pressure sensor with high sensitivity and wide linearity range. Small 14(27):e1800819
Zhang J et al (2023) Effect of the structure of epoxy monomers and curing agents: toward making intrinsically highly thermally conductive and low-dielectric epoxy resins. JACS Au 3(12):3424–3435
Wang M et al (2022) Bioinspired flexible piezoresistive sensor for high-sensitivity detection of broad pressure range. Bio-Design Manuf 6(3):243–254
Li C et al (2023) Preparation of short carbon fiber/polydimethylsiloxane conductive composites based on continuous spatial-confining network assembly technique. Adv Eng Mater 26:2301117
Ruan K et al (2023) Electric-field-induced alignment of functionalized carbon nanotubes inside thermally conductive liquid crystalline polyimide composite films. Angew Chem Int Ed Engl 62(38):e202309010
Li W et al (2021) Synergy of porous structure and microstructure in piezoresistive material for high-performance and flexible pressure sensors. ACS Appl Mater Interfaces 13(16):19211–19220
Zhang F et al (2015) Flexible and self-powered temperature–pressure dual-parameter sensors using microstructure-frame-supported organic thermoelectric materials. Nat Commun 6(1):8356
Ma T et al (2023) Controlled length and number of thermal conduction pathways for copper wire/poly(lactic acid) composites via 3D printing. Sci China Mater 66(10):4012–4021
Yu K.J et al (2017) Inorganic semiconducting materials for flexible and stretchable electronics. NPJ Flex Electron 1(1):4
Truong PL et al (2023) Advancement in COVID-19 detection using nanomaterial-based biosensors. Explor (Beijing) 3(1):20210232
Zhu F et al (2023) Molten salt electro-preparation of graphitic carbons. Explor (Beijing) 3(1):20210186
Tang R et al (2021) Flexible pressure sensors with microstructures. Nano Select 2(10):1874–1901
Zhu H et al (2023) Flexible, high-sensitive and multifunctional wearable sensor based on the dual bioinspired spinosum microstructure of carbon nanotube/carbon black-coated polydimethylsiloxane film. Measurement 207:112402
Lin Y et al (2023) Polysilsesquioxane-PBO wave-transparent composite paper with excellent mechanical properties and ultraviolet aging resistance. Adv Fiber Mater 5(6):2114–2126
Yang H et al (2022) Polyurethane sponges-based ultrasensitive pressure sensor via bioinspired microstructure generated by pre-strain strategy. Compos Sci Technol 221:109308
Wu G et al (2021) Fabrication of capacitive pressure sensor with extraordinary sensitivity and wide sensing range using PAM/BIS/GO nanocomposite hydrogel and conductive fabric. Compos Part A: Appl Sci Manufac 145:106373
Han S-T et al (2017) An overview of the development of flexible sensors. Adv Mater 29(33):1700375
Jian M et al (2017) Advanced carbon materials for flexible and wearable sensors. Sci China Mater 60(11):1026–1062
Ruan K, Gu J (2022) Ordered alignment of liquid crystalline graphene fluoride for significantly enhancing thermal conductivities of liquid crystalline polyimide composite films. Macromolecules 55(10):4134–4145
Ma T-B et al (2022) Thermally conductive poly(lactic acid) composites with Superior Electromagnetic shielding performances via 3D Printing Technology. Chin J Polym Sci 40(3):248–255
Liu C et al (2018) 3D printing technologies for flexible tactile sensors toward wearable electronics and electronic skin. Polymers (Basel) 10(6):629
Mousavi S et al (2020) Direct 3D printing of highly anisotropic, flexible, constriction-resistive sensors for multidirectional proprioception in soft robots. ACS Appl Mater Interfaces 12(13):15631–15643
Hao W et al (2018) Preparation and characterization of 3D printed continuous carbon fiber reinforced thermosetting composites. Polym Test 65:29–34
Zhang Z et al (2023) Design and analysis of multistable curvilinear-fiber laminates based on continuous fiber 3D printing of thermosetting resin matrix. Compos Struct 307:116616
Park SJ et al (2020) 3D printing of bio-based polycarbonate and its potential applications in ecofriendly indoor manufacturing. Additive Manuf 31:100974
Christ JF et al (2017) 3D printed highly elastic strain sensors of multiwalled carbon nanotube/thermoplastic polyurethane nanocomposites. Mater Design 131:394–401
Gunasekaran HB et al (2022) Facile fabrication of highly sensitive thermoplastic polyurethane sensors with surface- and interface-impregnated 3D conductive networks. ACS Appl Mater Interfaces 14(19):22615–22625
Ozbolat V et al (2018) 3D printing of PDMS improves its mechanical and cell adhesion properties. ACS Biomater Sci Eng 4(2):682–693
Zhang H et al (2022) 3D printing of continuous carbon fibre reinforced powder-based epoxy composites. Compos Commun 33:101239
Singh S, Prakash C, Ramakrishna S (2019) 3D printing of polyether-ether-ketone for biomedical applications. Eur Polymer J 114:234–248
Bhattacharjee N et al (2018) Desktop-stereolithography 3D-printing of a poly(dimethylsiloxane)-based material with sylgard-184 properties. Adv Mater 30(22):e1800001
Zhao C et al (2020) 3D-printed highly stable flexible strain sensor based on silver-coated-glass fiber-filled conductive silicon rubber. Mater Design 193:108788
Chen Z et al (2019) 3D Printing of Multifunctional Hydrogels. Adv Funct Mater 29(20):1900971
An Y et al (2023) Designable thermal conductivity and mechanical property of polydimethylsiloxane-based composite prepared by thermoset 3D printing. Compos Sci Technol 241:110119
Acknowledgements
This study is supported financially by the National Natural Science Foundation of China (No. 52003019), Young Elite Scientists Sponsorship Program by CAST (No. 2022QNRC001), Joint Project of BRC-BC (Biomedical Translational Engineering Research Center of BUCT-CJFH) (No. XK2022-10).
Author information
Authors and Affiliations
Corresponding authors
Ethics declarations
Conflict of interest
There is no conflict to declare.
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
About this article
Cite this article
An, Y., Chen, Y., Liu, J. et al. A carbon nanotube/graphene nanoplatelet pressure sensor prepared by combining 3D printing and freeze-drying method. J Polym Res 31, 129 (2024). https://doi.org/10.1007/s10965-024-03972-y
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s10965-024-03972-y