Self-plied and twist-stable carbon nanotube yarn artificial muscles driven by organic solvent adsorption

Nanoscale ◽  
2018 ◽  
Vol 10 (17) ◽  
pp. 8180-8186 ◽  
Author(s):  
Kaiyun Jin ◽  
Silan Zhang ◽  
Susheng Zhou ◽  
Jian Qiao ◽  
Yanhui Song ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Organic Solvent ◽  
Artificial Muscles ◽  
Stable Carbon ◽  
Heavy Load ◽  
Solvent Adsorption

A self-plied, twist-stable carbon nanotube yarn muscle was demonstrated, which provided decoupled actuations of large tensile strokes against heavy load but zero torsional stroke.

Microfluidic fabrication of magnetic porous multi-walled carbon nanotube beads for oil and organic solvent adsorption

2016 ◽  
Vol 4 (27) ◽  
pp. 10479-10485 ◽  
Author(s):  
Xiaojian Cao ◽  
Linlin Zang ◽  
Zhipeng Bu ◽  
Liguo Sun ◽  
Dechao Guo ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Organic Solvent ◽  
Microfluidic Device ◽  
Three Dimensional ◽  
Hierarchical Pores ◽  
Multi Walled Carbon Nanotube ◽  
Solvent Adsorption

Three-dimensional (3D) magnetic porous multi-walled carbon nanotube beads (MCNTBs) with obvious hierarchical pores were fabricated by using a microfluidic device for oil and organic solvent adsorption.

scholarly journals Supramolecular ionic polymer/carbon nanotube composite hydrogels with enhanced electromechanical performance

2020 ◽  
Vol 9 (1) ◽  
pp. 478-488 ◽  
Author(s):  
Yun-Fei Zhang ◽  
Fei-Peng Du ◽  
Ling Chen ◽  
Ka-Wai Yeung ◽  
Yuqing Dong ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Ion Mobility ◽  
Artificial Muscles ◽  
Ionic Polymer ◽  
Composite Hydrogels ◽  
The Matrix ◽  
Electromechanical Performance ◽  
Carbon Nanotube Composite ◽  
Robotic Devices

AbstractElectroactive hydrogels have received increasing attention due to the possibility of being used in biomimetics, such as for soft robotics and artificial muscles. However, the applications are hindered by the poor mechanical properties and slow response time. To address these issues, in this study, supramolecular ionic polymer–carbon nanotube (SIPC) composite hydrogels were fabricated via in situ free radical polymerization. The polymer matrix consisted of carbon nanotubes (CNTs), styrene sulfonic sodium (SSNa), β-cyclodextrin (β-CD)-grafted acrylamide, and ferrocene (Fc)-grafted acrylamide, with the incorporation of SSNa serving as the ionic source. On applying an external voltage, the ions accumulate on one side of the matrix, leading to localized swelling and bending of the structure. Therefore, a controllable and reversible actuation can be achieved by changing the applied voltage. The tensile strength of the SIPC was improved by over 300%, from 12 to 49 kPa, due to the reinforcement effect of the CNTs and the supramolecular host–guest interactions between the β-CD and Fc moieties. The inclusion of CNTs not only improved the tensile properties but also enhanced the ion mobility, which lead to a faster electromechanical response. The presented electro-responsive composite hydrogel shows a high potential for the development of robotic devices and soft smart components for sensing and actuating applications.

Tensile and torsional elastomer fiber artificial muscle by entropic elasticity with thermo-piezoresistive sensing of strain and rotation by a single electric signal

2020 ◽  
Vol 7 (12) ◽  
pp. 3305-3315
Author(s):  
Run Wang ◽  
Yanan Shen ◽  
Dong Qian ◽  
Jinkun Sun ◽  
Xiang Zhou ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Natural Rubber ◽  
Artificial Muscle ◽  
Electric Signal ◽  
Artificial Muscles ◽  
Resistance Change ◽  
Entropic Elasticity

Artificial muscles are developed by using twisted natural rubber fiber coated with buckled carbon nanotube sheet, which show tensile and torsional actuations and sensing function via the resistance change by a single electric signal.

Preparation and Organic Solvent Adsorption of PTFE Fabric Reinforced GO/SiO2 Aerogel

2020 ◽  
Vol 49 (11) ◽  
pp. 1324-1328
Author(s):  
Wenqian Yan ◽  
Kunmeng Zhu ◽  
Xiaodong Wu ◽  
Boya Li ◽  
Sheng Cui ◽  
...  
Keyword(s):  
Organic Solvent ◽  
Sio2 Aerogel ◽  
Solvent Adsorption

All-Solid-State Carbon Nanotube Torsional and Tensile Artificial Muscles

Nano Letters ◽  
2014 ◽  
Vol 14 (5) ◽  
pp. 2664-2669 ◽  
Author(s):  
Jae Ah Lee ◽  
Youn Tae Kim ◽  
Geoffrey M. Spinks ◽  
Dongseok Suh ◽  
Xavier Lepró ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Solid State ◽  
Artificial Muscles

Dispersibility of Carbon Nanotubes

2007 ◽  
Vol 537-538 ◽  
pp. 161-168 ◽  
Author(s):  
T. Gábor ◽  
D. Aranyi ◽  
Katalin Papp ◽  
F.H. Kármán ◽  
Erika Kálmán
Keyword(s):  
Carbon Nanotubes ◽  
Atomic Force Microscopy ◽  
Carbon Nanotube ◽  
Polymer Composites ◽  
Ionic Surfactant ◽  
Geometrical Parameters ◽  
Stable Carbon ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dispersion Agent

Availability of a stable carbon nanotube suspension is a prerequisite for production of polymer composites with carbon nanotube as additives. In this work nanotube suspensions, which have been prepared from various nanotubes in different dispersion agents, were compared. Dispersibility of the samples was investigated by scanning electon microscopy and atomic force microscopy. Solution of a non-ionic surfactant was also used successfully as a new dispersion agent. Geometrical parameters of the carbon nanotubes were determined by using atomic force microscopy. Correlation was found between the dispersibility and the parameters of the nanotubes and relative permittivity of the different solvents.

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