Fabrication of electrically conductive poly(styrene-b-ethylene-ran-butylene-b-styrene)/multi-walled carbon nanotubes composite fiber and its application in ultra-stretchable strain sensor

Li, Lele; Du, Zikai; Sun, Baojie; Li, Wenyue; Jiang, Liang; Zhou, Yanfen; Ma, Jing; Chen, Shaojuan; Zhou, Fan

doi:10.1016/j.eurpolymj.2022.111121

Cited by 13 publications

(10 citation statements)

References 47 publications

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“…When the strain reached a maximum of 215%, the GF was 1.13 × 10 5 . As shown in Figure 7 c, compared with maximum GFs and sensing strains recently reported [ 2 , 3 , 6 , 9 , 10 , 14 , 15 , 16 , 21 , 22 , 37 ], the strain sensor in this study offered excellent, comprehensive sensing performance.…”

Section: Resultsmentioning

confidence: 54%

A Highly Sensitive and Flexible Strain Sensor Based on Dopamine-Modified Electrospun Styrene-Ethylene-Butylene-Styrene Block Copolymer Yarns and Multi Walled Carbon Nanotubes

Zhou

Liu

et al. 2022

Polymers

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As wearable electronic devices have become commonplace in daily life, great advances in wearable strain sensors occurred in various fields including healthcare, robotics, virtual reality and other sectors. In this work, a highly stretchable and sensitive strain sensor based on electrospun styrene-ethylene-butene-styrene copolymer (SEBS) yarn modified by dopamine (DA) and coated with multi-walled carbon nanotubes (MWCNTs) was reported. Due to the process of twisting, a strain senor stretched to a strain of 1095.8% while exhibiting a tensile strength was 20.03 MPa. The strain sensor obtained a gauge factor (GF of 1.13 × 105) at a maximum strain of 215%. Concurrently, it also possessed good stability, repeatability and durability under different strain ranges, stretching speeds and 15,000 stretching-releasing cycles. Additionally, the strain sensor exhibited robust washing fastness under an ultrasonic time of 120 min at 240 W and 50 Hz. Furthermore, it had a superior sensing performance in monitoring joint motions of the human body. The high sensitivity and motion sensing performance presented here demonstrate that PDA@SEBS/MWNCTs yarn has great potential to be used as components of wearable devices.

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Section: Resultsmentioning

confidence: 54%

A Highly Sensitive and Flexible Strain Sensor Based on Dopamine-Modified Electrospun Styrene-Ethylene-Butylene-Styrene Block Copolymer Yarns and Multi Walled Carbon Nanotubes

Zhou

Liu

et al. 2022

Polymers

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“…CNT fillers produce a conductive network in a rubber matrix, providing the composites with conductivity and strain sensing. Xu et al [ 16 ] used CNTs, MXene, and porous polydimethylsiloxane (PDMS) to create a multifunctional strain sensor with a 105% strain range, where the sensitivity (GF) = 1939 and the reaction speed was 158/160 ms. Li et al [ 17 ] developed multi-walled carbon nanotube (MWCNT)/polystyrene-b-ethylene-butylene-b-styrene (SEBS) composites via wet spinning. They evaluated the sensing characteristics of the MWCNT content and aspect ratio (L/D) of the composites.…”

Section: Introductionmentioning

confidence: 99%

Effect of Vulcanization on the Electro-Mechanical Sensing Characteristics of Multi-Walled Carbon Nanotube/Silicone Rubber Composites

et al. 2023

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In order to realize effective monitoring for the working performance of seismic isolation structures, a multi-walled carbon nanotube (MWCNT)/methyl vinyl silicone rubber (VMQ) composite was prepared via mechanical blending using dicumyl peroxide (DCP) and 2,5-dimethyl-2,5-di(tert-butyl peroxy)hexane (DBPMH) as vulcanizing agents. The effects of the different vulcanizing agents on the dispersion of the MWCNT, electrical conductivity, mechanical properties, and resistance–strain response of the composites were investigated. The experimental results showed that the percolation threshold of the composites prepared with the two vulcanizing agents was low, while the DCP-vulcanized composites showed high mechanical properties and a better resistance–strain response sensitivity and stability, especially after 15,000 loading cycles. According to the analysis using scanning electron microscopy and Fourier infrared spectroscopy, it was found that the DCP contributed higher vulcanization activity, a denser cross-linking network, better and uniform dispersion, and a more stable damage–reconstruction mechanism for the MWCNT network during the deformation load. Thus, the DCP-vulcanized composites showed better mechanical performance and electrical response abilities. When employing an analytical model based on the tunnel effect theory, the mechanism of the resistance–strain response was explained, and the potential of this composite for real-time strain monitoring for large deformation structures was confirmed.

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“…21–23 Among these conductive fillers, CNTs possessing both high electrical conductivity and excellent mechanical robustness are ideal for fabricating flexible strain sensors. 17,24–27…”

Section: Introductionmentioning

confidence: 99%

“…[21][22][23] Among these conductive fillers, CNTs possessing both high electrical conductivity and excellent mechanical robustness are ideal for fabricating flexible strain sensors. 17,[24][25][26][27] Flexible strain sensors have been designed in the form of thin films, fabrics, and fibers. 10,28,29 In contrast to thin films and fabrics with two dimensional planar configurations, fiber based strain sensors have been developed extensively in recent years due to their special one dimensional structure and weaveability.…”

Section: Introductionmentioning

confidence: 99%

“…10 Various elastomers, such as polydimethylsiloxane (PDMS), 11 polyurethane (PU) and silicone rubber, 12,13 have been used as matrices for the fabrication of flexible strain sensors because of their high stretchability and good elastic recovery. 14 Carbon black (CB), 15 carbon nanotubes (CNTs), 11,[16][17][18][19] silver nanowires (AgNWs), 17,20 and graphene have been used as conductive components due to their excellent electrical conductivity. [21][22][23] Among these conductive fillers, CNTs possessing both high electrical conductivity and excellent mechanical robustness are ideal for fabricating flexible strain sensors.…”

Section: Introductionmentioning

confidence: 99%

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Styrene-ethylene-butadiene-styrene copolymer/carbon nanotubes composite fiber based strain sensor with wide sensing range and high linearity for human motion detection

Sun

et al. 2022

Journal of Industrial Textiles

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Flexible strain sensors have attracted extensive attention due to their potential applications in wearable electronics and health monitoring. However, it is still a challenge to obtain flexible strain sensors with both high stretchability and wide linear strain sensing range. In this study, styrene-ethylene-butadiene-styrene copolymer/carbon nanotubes (SEBS/CNTs) composite fiber which showed both electrical conductivity and high stretchability was fabricated through a scalable wet spinning method. The effect of CNTs content on the strain sensing behavior of the SEBS/CNTs fiber based strain sensor was investigated. The results showed that when the CNTs content reached 7 wt%, the SEBS/CNTs composite fiber was capable of sensing strains as high as 500.20% and showed a wide linear strain sensing range of 0-500.2% with a gauge factor (GF) of 38.57. Combining high stretchability, high linearity and reliable stability, the SEBS/CNTs composite fiber based strain sensor had the ability to monitor the activities of different human body parts including hand, wrist, elbow, shoulder and knee.

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Fabrication of electrically conductive poly(styrene-b-ethylene-ran-butylene-b-styrene)/multi-walled carbon nanotubes composite fiber and its application in ultra-stretchable strain sensor

Cited by 13 publications

References 47 publications

A Highly Sensitive and Flexible Strain Sensor Based on Dopamine-Modified Electrospun Styrene-Ethylene-Butylene-Styrene Block Copolymer Yarns and Multi Walled Carbon Nanotubes

A Highly Sensitive and Flexible Strain Sensor Based on Dopamine-Modified Electrospun Styrene-Ethylene-Butylene-Styrene Block Copolymer Yarns and Multi Walled Carbon Nanotubes

Effect of Vulcanization on the Electro-Mechanical Sensing Characteristics of Multi-Walled Carbon Nanotube/Silicone Rubber Composites

Styrene-ethylene-butadiene-styrene copolymer/carbon nanotubes composite fiber based strain sensor with wide sensing range and high linearity for human motion detection

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