Self-Healing, Self-Adhesive Strain Sensors Made with Carbon Nanotubes/Polysiloxanes Based on Unsaturated Carboxyl–Amine Ionic Interactions

2021 ◽  
Author(s):  
Dongdong Mai ◽  
Jiaheng Mo ◽  
Shijie Shan ◽  
Yaling Lin ◽  
Anqiang Zhang
Keyword(s):  
Carbon Nanotubes ◽  
Strain Sensors ◽  
Ionic Interactions ◽  
Self Healing

Planting carbon nanotubes onto supramolecular polymer matrices for waterproof non-contact self-healing

Nanoscale ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 467-473 ◽  
Author(s):  
Bo Li ◽  
Lei Kan ◽  
Shuai Zhang ◽  
Zhengdao Liu ◽  
Chao Li ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials ◽  
Strain Sensors ◽  
Polymer Matrices ◽  
Supramolecular Polymer ◽  
Self Healing

Thermo-responsive supramolecular polymer/MWCNTs composite materials were prepared by a spraying procedure and used as waterproof strain sensors with NIR-induced underwater healability.

scholarly journals Dynamic Nanohybrid-Polysaccharide Hydrogels for Soft Wearable Strain Sensing

Sensors ◽  
2021 ◽  
Vol 21 (11) ◽  
pp. 3574
Author(s):  
Pejman Heidarian ◽  
Hossein Yousefi ◽  
Akif Kaynak ◽  
Mariana Paulino ◽  
Saleh Gharaie ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Strain Sensors ◽  
Self Healing ◽  
Nano Materials ◽  
Strain Sensing ◽  
Ferric Ions ◽  
Research Activity ◽  
Adhesion Properties ◽  
High Mechanical Strength ◽  
The Moment

Electroconductive hydrogels with stimuli-free self-healing and self-recovery (SELF) properties and high mechanical strength for wearable strain sensors is an area of intensive research activity at the moment. Most electroconductive hydrogels, however, consist of static bonds for mechanical strength and dynamic bonds for SELF performance, presenting a challenge to improve both properties into one single hydrogel. An alternative strategy to successfully incorporate both properties into one system is via the use of stiff or rigid, yet dynamic nano-materials. In this work, a nano-hybrid modifier derived from nano-chitin coated with ferric ions and tannic acid (TA/Fe@ChNFs) is blended into a starch/polyvinyl alcohol/polyacrylic acid (St/PVA/PAA) hydrogel. It is hypothesized that the TA/Fe@ChNFs nanohybrid imparts both mechanical strength and stimuli-free SELF properties to the hydrogel via dynamic catecholato-metal coordination bonds. Additionally, the catechol groups of TA provide mussel-inspired adhesion properties to the hydrogel. Due to its electroconductivity, toughness, stimuli-free SELF properties, and self-adhesiveness, a prototype soft wearable strain sensor is created using this hydrogel and subsequently tested.

scholarly journals Self-healing Ability of Epoxy Vitrimer Nanocomposites Containing Bio-Based Curing Agents and Carbon Nanotubes for Corrosion Protection

2021 ◽  
Author(s):  
Narubeth Lorwanishpaisarn ◽  
Natwat Srikhao ◽  
Kaewta Jetsrisuparb ◽  
Jesper T. N. Knijnenburg ◽  
Somnuk Theerakulpisut ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Corrosion Protection ◽  
Self Healing ◽  
Curing Agents

Highly viscoelastic, stretchable, conductive, and self-healing strain sensors based on cellulose nanofiber-reinforced polyacrylic acid hydrogel

Cellulose ◽  
2021 ◽  
Vol 28 (7) ◽  
pp. 4295-4311
Author(s):  
Yue Jiao ◽  
Kaiyue Lu ◽  
Ya Lu ◽  
Yiying Yue ◽  
Xinwu Xu ◽  
...  
Keyword(s):  
Polyacrylic Acid ◽  
Strain Sensors ◽  
Cellulose Nanofiber ◽  
Self Healing

scholarly journals A Review: Carbon Nanotube-Based Piezoresistive Strain Sensors

2012 ◽  
Vol 2012 ◽  
pp. 1-15 ◽  
Author(s):  
Waris Obitayo ◽  
Tao Liu
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Composite Films ◽  
Strain Sensors ◽  
Voltage Response ◽  
Strain Sensing ◽  
Multiwalled Carbon ◽  
Sensing Applications ◽  
Mechanical Deformations ◽  
Electrical Resistivities

The use of carbon nanotubes for piezoresistive strain sensors has acquired significant attention due to its unique electromechanical properties. In this comprehensive review paper, we discussed some important aspects of carbon nanotubes for strain sensing at both the nanoscale and macroscale. Carbon nanotubes undergo changes in their band structures when subjected to mechanical deformations. This phenomenon makes them applicable for strain sensing applications. This paper signifies the type of carbon nanotubes best suitable for piezoresistive strain sensors. The electrical resistivities of carbon nanotube thin film increase linearly with strain, making it an ideal material for a piezoresistive strain sensor. Carbon nanotube composite films, which are usually fabricated by mixing small amounts of single-walled or multiwalled carbon nanotubes with selected polymers, have shown promising characteristics of piezoresistive strain sensors. Studies also show that carbon nanotubes display a stable and predictable voltage response as a function of temperature.

Multifunctional Self-Healing Dual Network Hydrogels Constructed via Host–Guest Interaction and Dynamic Covalent Bond as Wearable Strain Sensors for Monitoring Human and Organ Motions

2021 ◽  
Vol 13 (12) ◽  
pp. 14612-14622
Author(s):  
Xiong Liu ◽  
Zhijun Ren ◽  
Fangfei Liu ◽  
Li Zhao ◽  
Qiangjun Ling ◽  
...  
Keyword(s):  
Covalent Bond ◽  
Strain Sensors ◽  
Self Healing

Ultrastretchable and Self-Healing Conductors with Double Dynamic Network for Omni-Healable Capacitive Strain Sensors

Nano Letters ◽  
2021 ◽  
Author(s):  
Pan-Pan Jiang ◽  
Haili Qin ◽  
Jing Dai ◽  
Shu-Hong Yu ◽  
Huai-Ping Cong
Keyword(s):  
Dynamic Network ◽  
Strain Sensors ◽  
Self Healing ◽  
Capacitive Strain
Sign in / Sign up

Export Citation Format

Share Document