scholarly journals Coco Stretch: Strain Sensors Based on Natural Coconut Oil and Carbon Black Filled Elastomers

2020 ◽  
pp. 2000780
Author(s):  
Pasindu Lugoda ◽  
Júlio C. Costa ◽  
Leonardo A. Garcia‐Garcia ◽  
Arash Pouryazdan ◽  
Zygimantas Jocys ◽  
...  
Keyword(s):  
Carbon Black ◽  
Coconut Oil ◽  
Strain Sensors ◽  
Filled Elastomers

scholarly journals Strain Sensors: Coco Stretch: Strain Sensors Based on Natural Coconut Oil and Carbon Black Filled Elastomers (Adv. Mater. Technol. 2/2021)

2021 ◽  
Vol 6 (2) ◽  
pp. 2170012
Author(s):  
Pasindu Lugoda ◽  
Júlio C. Costa ◽  
Leonardo A. Garcia‐Garcia ◽  
Arash Pouryazdan ◽  
Zygimantas Jocys ◽  
...  
Keyword(s):  
Carbon Black ◽  
Coconut Oil ◽  
Strain Sensors ◽  
Filled Elastomers

scholarly journals Non-Monotonic Sensor Behavior of Carbon Particle-Filled Textile Strain Sensors

2021 ◽  
Vol 6 (1) ◽  
pp. 13
Author(s):  
Johannes Mersch ◽  
Henriette Probst ◽  
Andreas Nocke ◽  
Chokri Cherif ◽  
Gerald Gerlach
Keyword(s):  
Thermoplastic Polyurethane ◽  
Carbon Particle ◽  
Equivalent Circuit Model ◽  
Conductive Filler ◽  
Underlying Mechanism ◽  
Human Motion ◽  
Strain Sensors ◽  
Material Behavior ◽  
Strain History ◽  
Filled Elastomers

Carbon particle-filled elastomers are a widely researched option to be used as piezoresistive strain sensors for soft robotics or human motion monitoring. Therefore, various polymers can be compounded with carbon black (CB), carbon nanotubes (CNT) or graphene. However, in many studies, the electrical resistance strain response of the carbon particle-filled elastomers is non-monotonic in dynamic evaluation scenarios. The non-monotonic material behavior is also called shoulder phenomenon or secondary peak. Until today, the underlying cause is not sufficiently well understood. In this study, several influencing test parameters on the shoulder phenomena are explored, such as strain level, strain rate and strain history. Moreover, material parameters such as CNT content and anisotropy are varied in melt-spun CNT filled thermoplastic polyurethane (TPU) filament yarns, and their non-monotonic sensor response is evaluated. Additionally, a theoretical concept for the underlying mechanism and thereupon-based model is presented. An equivalent circuit model is used, which incorporates the visco-elastic properties and the characteristic of the percolation network formed by the conductive filler material. The simulation results are in good agreement when compared to the experimental results.

Modelling of sliding friction for carbon black and silica filled elastomers on road tracks

Wear ◽  
2008 ◽  
Vol 264 (7-8) ◽  
pp. 606-615 ◽  
Author(s):  
A. Le Gal ◽  
L. Guy ◽  
G. Orange ◽  
Y. Bomal ◽  
M. Klüppel
Keyword(s):  
Carbon Black ◽  
Sliding Friction ◽  
Filled Elastomers

scholarly journals 129Xe-NMR of carbon black filled elastomers

1999 ◽  
Vol 10 (4) ◽  
pp. 299-306 ◽  
Author(s):  
K. Sperling-Ischinsky ◽  
W.S. Veeman
Keyword(s):  
Carbon Black ◽  
129Xe Nmr ◽  
Filled Elastomers

Embedded large strain sensors with graphene-carbon black-silicone rubber composites

2018 ◽  
Vol 282 ◽  
pp. 206-214 ◽  
Author(s):  
Agee Susan Kurian ◽  
Velram Balaji Mohan ◽  
Debes Bhattacharyya
Keyword(s):  
Carbon Black ◽  
Silicone Rubber ◽  
Large Strain ◽  
Strain Sensors ◽  
Rubber Composites

The Role of Filler Properties in the Creep Deformation of Filled Elastomers

1983 ◽  
Vol 56 (2) ◽  
pp. 465-480
Author(s):  
J. L. Thiele ◽  
R. E. Cohen
Keyword(s):  
Carbon Black ◽  
Creep Deformation ◽  
High Strain ◽  
Filled Elastomers ◽  
Filled Elastomer ◽  
Strain Mechanism ◽  
Sensitive Tool ◽  
Strain Induced Crystallization ◽  
Induced Crystallization

Abstract The use of the creep T-jump experiment as a sensitive tool for elucidating the mechanistic behavior during the deformation of a complex material such as the carbon black filled elastomer has been illustrated. The activation energy for creep was determined as a function of stress for various vulcanizates. The effects of the choice of elastomer, and of variations in surface chemistry, structure, and loading of the filler, were studied. The T-jump results combined with electrical conductivity measurements confirmed the presence of a carbon black network which is considerably involved in the creep deformation process at low strain but not at high strain. In NR vulcanizates, there is a high-strain mechanism not observed in SBR vulcanizates; presumably strain-induced crystallization is responsible for the NR behavior. Oxidation of filler surfaces had essentially no effect on the creep deformation mechanisms, suggesting that, during creep, slippage of elastomers along the surface does not occur to any great extent for conventional or oxidized surfaces.

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