Dusting Thermoplastic Polyurethane Granules with Carbon Nanotubes toward Highly Stretchable Conductive Elastomer Composites

2020 ◽  
Vol 2 (9) ◽  
pp. 4037-4044
Author(s):  
Mehrad Amirkhosravi ◽  
Liang Yue ◽  
Ica Manas-Zloczower
Keyword(s):  
Carbon Nanotubes ◽  
Thermoplastic Polyurethane ◽  
Highly Stretchable ◽  
Elastomer Composites

scholarly journals Melt Spinning of Highly Stretchable, Electrically Conductive Filament Yarns

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 590
Author(s):  
Henriette Probst ◽  
Konrad Katzer ◽  
Andreas Nocke ◽  
Rico Hickmann ◽  
Martina Zimmermann ◽  
...  
Keyword(s):  
Melt Spinning ◽  
Fiber Composite ◽  
Thermoplastic Polyurethane ◽  
Smart Textiles ◽  
Electrically Conductive ◽  
Textile Technology ◽  
Highly Stretchable ◽  
Elastomer Composites ◽  
Conductive Fibers ◽  
Fine Copper

Electrically conductive fibers are required for various applications in modern textile technology, e.g., the manufacturing of smart textiles and fiber composite systems with textile-based sensor and actuator systems. According to the state of the art, fine copper wires, carbon rovings, or metallized filament yarns, which offer very good electrical conductivity but low mechanical elongation capabilities, are primarily used for this purpose. However, for applications requiring highly flexible textile structures, as, for example, in the case of wearable smart textiles and fiber elastomer composites, the development of electrically conductive, elastic yarns is of great importance. Therefore, highly stretchable thermoplastic polyurethane (TPU) was compounded with electrically conductive carbon nanotubes (CNTs) and subsequently melt spun. The melt spinning technology had to be modified for the processing of highly viscous TPU–CNT compounds with fill levels of up to 6 wt.% CNT. The optimal configuration was achieved at a CNT content of 5 wt.%, providing an electrical resistance of 110 Ωcm and an elongation at break of 400%.

Highly flexible and transparent dielectric elastomer actuators using silver nanowire and carbon nanotube hybrid electrodes

Soft Matter ◽  
2017 ◽  
Vol 13 (37) ◽  
pp. 6390-6395 ◽  
Author(s):  
Ye Rim Lee ◽  
Hyungho Kwon ◽  
Do Hoon Lee ◽  
Byung Yang Lee
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Silver Nanowires ◽  
Dielectric Elastomer ◽  
Silver Nanowire ◽  
Dielectric Elastomer Actuator ◽  
Dielectric Elastomer Actuators ◽  
Transparent Dielectric ◽  
Optically Transparent ◽  
Highly Stretchable

Electrodes consisting of silver nanowires and carbon nanotubes enable a dielectric elastomer actuator to become highly stretchable and optically transparent.

scholarly journals The Piezoresistive Highly Elastic Sensor Based on Carbon Nanotubes for the Detection of Breath

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 713 ◽  
Author(s):  
Romana Daňová ◽  
Robert Olejnik ◽  
Petr Slobodian ◽  
Jiri Matyas
Keyword(s):  
Carbon Nanotubes ◽  
Flexible Substrate ◽  
Thermoplastic Polyurethane ◽  
Aqueous Dispersion ◽  
Portable Devices ◽  
Multiwalled Carbon ◽  
Novel Technique ◽  
Subsequent Application ◽  
Wearable Electronic ◽  
Type Frequency

Wearable electronic sensor was prepared on a light and flexible substrate. The breathing sensor has a broad assumption and great potential for portable devices in wearable technology. In the present work, the application of a flexible thermoplastic polyurethane/multiwalled carbon nanotubes (TPU/MWCNTs) strain sensor was demonstrated. This composite was prepared by a novel technique using a thermoplastic filtering membrane based on electrospinning technology. Aqueous dispersion of MWCNTs was filtered through membrane, dried and then welded directly on a T-shirt and encapsulated by a thin silicone layer. The sensing layer was also equipped by electrodes. A polymer composite sensor is capable of detecting a deformation by changing its electrical resistance. A T-shirt was capable of analyzing a type, frequency and intensity of human breathing. The sensitivity to the applied strain of the sensor was improved by the oxidation of MWCNTs by potassium permanganate (KMnO4) and also by subsequent application of the prestrain.

Sign in / Sign up

Export Citation Format

Share Document