Super-hydrophobic, durable and cost-effective carbon black/rubber composites for high performance strain sensors

Yang, Chen; Wang, Ling; Wu, Zefeng; Luo, Junchen; Li, Bei; Huang, Xuewu; Xue, Huaiguo; Gao, Jiefeng

doi:10.1016/j.compositesb.2019.107358

Cited by 105 publications

(67 citation statements)

References 45 publications

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“…This study provided an overview of CB-PDMS conductivity and gauge factor as a function of carbon black particle percentage but did not perform microstructure analysis as others have [40][41]. Scanning electron microscopy could be used to quantify carbon black particle distribution, which could further improve sensor performance.…”

Section: Discussionmentioning

confidence: 99%

Vascular Pressure–Flow Measurement Using CB-PDMS Flexible Strain Sensor

Chong

Lou

Bogie

et al. 2019

IEEE Trans. Biomed. Circuits Syst.

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Regular monitoring of blood flow and pressure in vascular reconstructions or grafts would provide early warning of graft failure and improve salvage procedures. Based on biocompatible materials, we have developed a new type of thin, flexible pulsation sensor (FPS) which is wrapped around a graft to monitor blood pressure and flow. The FPS uses carbon black (CB) nanoparticles dispersed in polydimethylsiloxane (PDMS) as a piezoresistive sensor layer, which was encapsulated within structural PDMS layers and connected to stainless steel interconnect leads. Because the FPS is more flexible than natural arteries, veins, and synthetic vascular grafts, it can be wrapped around target conduits at the time of surgery and remain implanted for long-term monitoring. In this study, we analyze strain transduction from a blood vessel and characterize the electrical and mechanical response of CB-PDMS from 0-50% strain. An optimum concentration of 14% CB-PDMS was used to fabricate 300-μm thick FPS devices with elastic modulus under 500 kPa, strain range of

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Section: Discussionmentioning

confidence: 99%

Vascular Pressure–Flow Measurement Using CB-PDMS Flexible Strain Sensor

Chong

Lou

Bogie

et al. 2019

IEEE Trans. Biomed. Circuits Syst.

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“…At present, to satisfy the aforementioned characteristics, researchers have designed strain sensors with different sensing mechanisms, among which the resistance sensor has gradually become the mainstream design method of strain sensors due to its simplicity and low cost. According to the response principle of resistance sensors, conductive carbon fillers and mental nanowires (such as carbon black [16,17], carbon nanotubes [18,19], graphene [20,21], and Ag nanowires [22,23]) can be combined with flexible substrates (such as polydimethylsiloxane (PDMS) [24,25], polyurethane (PU) [26,27], silicone rubber (SR) [28,29], elastic fabrics [30,31], and elastic bands [32]) to make a flexible piezoresistive sensor with a high sensitivity and a large stretch range by a certain preparation method. Therefore, these studies reveal that composites made of a conductive material and polymer can meet the performance requirement of strain sensors.…”

Section: Introductionmentioning

confidence: 99%

A Flexible Strain Sensor Based on the Porous Structure of a Carbon Black/Carbon Nanotube Conducting Network for Human Motion Detection

Zhang

Chen

et al. 2020

Sensors

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High-performance flexible strain sensors are playing an increasingly important role in wearable electronics, such as human motion detection and health monitoring, with broad application prospects. This study developed a flexible resistance strain sensor with a porous structure composed of carbon black and multi-walled carbon nanotubes. A simple and low-cost spraying method for the surface of a porous polydimethylsiloxane substrate was used to form a layer of synergized conductive networks built by carbon black and multi-walled carbon nanotubes. By combining the advantages of the synergetic effects of mixed carbon black and carbon nanotubes and their porous polydimethylsiloxane structure, the performance of the sensor was improved. The results show that the sensor has a high sensitivity (GF) (up to 61.82), a wide strain range (0%–130%), a good linearity, and a high stability. Based on the excellent performance of the sensor, the flexible strain designed sensor was installed successfully on different joints of the human body, allowing for the monitoring of human movement and human respiratory changes. These results indicate that the sensor has promising potential for applications in human motion monitoring and physiological activity monitoring.

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“…40 The anticorrosion performance of coatings can be studied by polarization tests, and high barrier properties will greatly contribute to the improvement of corrosion protection of the coating. [42][43][44][45] The tabulated data in Table III clearly indicate the I coor value of WPU/CB/GO coatings is smaller than that of 316SS and WPU; meanwhile, the tendency of the corrosion potential shifting to more noble increases as the composite filler loadings increase in WPU/CB/GO nanocomposites coatings, suggesting the coating is passivated. 46 This means that the prepared nanocomposites have significant active roles on the anticorrosion of 316SS.…”

Section: Contact Anglementioning

confidence: 99%

WPU/CB/GO nanocomposites: in situ polymerization preparation, thermal, and anticorrosion performance evaluation

Hou

Zhou

2019

J of Applied Polymer Sci

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In this paper, composite fillers including graphene oxide and carbon black had been applied to modify pure waterborne polyurethane (WPU) and a new nanocomposite was prepared by in situ polymerization, whose structure was characterized by Fourier transform infrared spectroscopy that demonstrated interfacial interactions existing between the filler particles and the hard segments of WPU chains. Meanwhile, thermal properties of prepared nanocomposites were enhanced after adding composite fillers as shown in the results of thermogravimetric analysis and differential scanning calorimetry curves, which could be explained by several factors including strong interface interaction between organic phase and inorganic phase verified by infrared spectra and scanning electron microscopy as well as transmission electron microscopy, good dispersion and barrier effect of the composite fillers, reinforced crosslinking density of the system. Additionally, the contact angle and anticorrosion performance of the nanocomposite films were heightened after adding fillers. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48716.

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Super-hydrophobic, durable and cost-effective carbon black/rubber composites for high performance strain sensors

Cited by 105 publications

References 45 publications

Vascular Pressure–Flow Measurement Using CB-PDMS Flexible Strain Sensor

Vascular Pressure–Flow Measurement Using CB-PDMS Flexible Strain Sensor

A Flexible Strain Sensor Based on the Porous Structure of a Carbon Black/Carbon Nanotube Conducting Network for Human Motion Detection

WPU/CB/GO nanocomposites: in situ polymerization preparation, thermal, and anticorrosion performance evaluation

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