Mechanical Tough yet Self-Healing Transparent Conductive Elastomers through Synergic Dual Cross-Linking Strategy

2021 ◽  
Author(s):  
Qiankun Zhang ◽  
Guangxue Chen ◽  
Ren'ai Li ◽  
Liang Lin ◽  
He minghui
Keyword(s):  
Mechanical Strength ◽  
Cross Linking ◽  
Self Healing ◽  
High Mechanical Strength ◽  
Novel Strategy ◽  
Conductive Elastomers

Simultaneous achieving transparency, high mechanical strength and self-healing in conductive elastomers with simple and green features is a challenge. Here we develop a novel strategy for a tough yet self-healing...

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.

Facile Fabrication of Degradable Polyurethane Thermosets with High Mechanical Strength and Toughness via the Cross-linking of Triple Boron-Urethane Bonds

2021 ◽  
Author(s):  
Chunyang Bao ◽  
Xuhao Zhang ◽  
Pengdong Yu ◽  
Qingzhong Li ◽  
Yusheng Qin ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Cross Linking ◽  
Degradable Polymers ◽  
Sustainable Society ◽  
High Mechanical Strength ◽  
Facile Fabrication ◽  
The Cross ◽  
Strength And Toughness

Degradable polymers that play an increasingly important role in the development of sustainable society are highly demanded to feature not only high mechanical strength, but also exhibit superior toughness. Herein,...

A room-temperature self-healing elastomer with ultra-high strength and toughness fabricated via optimized hierarchical hydrogen-bonding interactions

2022 ◽  
Author(s):  
Liangliang Xia ◽  
Ming Zhou ◽  
Hongjun Tu ◽  
wen Zeng ◽  
xiaoling Yang ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Mechanical Strength ◽  
Room Temperature ◽  
Polymeric Materials ◽  
High Strength ◽  
Self Healing ◽  
High Mechanical Strength ◽  
Hydrogen Bonding Interactions ◽  
Healing Efficiency ◽  
Good Healing

The preparation of room-temperature self-healing polymeric materials with good healing efficiency and high mechanical strength is challenging. Two processes are essential to realise the room-temperature self-healing of materials: (a) a...

Self-healable gradient copolymers

2019 ◽  
Vol 3 (3) ◽  
pp. 464-471 ◽  
Author(s):  
Jing Cui ◽  
Zhe Ma ◽  
Li Pan ◽  
Chun-Hua An ◽  
Jing Liu ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Ionic Interactions ◽  
Self Healing ◽  
Gradient Copolymers ◽  
High Mechanical Strength ◽  
Gradient Distribution

Synergistic hard/soft gradient distribution and dynamic ionic interactions impart high mechanical strength, toughness, stretchability and tenacious self-healing ability to copolymers.

Polymerizable deep eutectic solvents-based mechanically strong and ultra-stretchable conductive elastomers for detecting human motions

2021 ◽  
Author(s):  
Kaili Zhang ◽  
Ren'ai Li ◽  
Guangxue Chen ◽  
Yang Jimin ◽  
Junfei Tian ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mechanical Strength ◽  
Flexible Electronics ◽  
Deep Eutectic Solvents ◽  
High Mechanical Strength ◽  
Conductive Elastomers ◽  
Human Motions

Conductive elastomers (CEs)with strong mechanical properties have been fabricated and used in flexible electronics. However, the development of CEs with both super-high mechanical strength and extreme stretchability remains challenging. This...

Melt-Processable Shape-Memory Hydrogels with Self-Healing Ability of High Mechanical Strength

2016 ◽  
Vol 49 (19) ◽  
pp. 7442-7449 ◽  
Author(s):  
Cigdem Bilici ◽  
Volkan Can ◽  
Ulrich Nöchel ◽  
Marc Behl ◽  
Andreas Lendlein ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Shape Memory ◽  
Self Healing ◽  
High Mechanical Strength

Polyelectrolyte complex-based self-healing, fatigue-resistant and anti-freezing hydrogels as highly sensitive ionic skins

2020 ◽  
Vol 8 (7) ◽  
pp. 3667-3675 ◽  
Author(s):  
Siheng Li ◽  
Hongyu Pan ◽  
Yuting Wang ◽  
Junqi Sun
Keyword(s):  
Mechanical Strength ◽  
Polyelectrolyte Complex ◽  
Mechanical Damage ◽  
High Sensitivity ◽  
Self Healing ◽  
High Mechanical Strength ◽  
Highly Sensitive ◽  
Sensing Performance

Hydrogel-based self-healing ionic skins possess high mechanical strength, excellent resilience, anti-freezing properties and high sensitivity and can heal fatigue and mechanical damage to restore the original sensing performance.

scholarly journals A Rapidly Self-Healing Host-Guest Supramolecular Hydrogel with High Mechanical Strength and Excellent Biocompatibility

2018 ◽  
Vol 57 (29) ◽  
pp. 9008-9012 ◽  
Author(s):  
Zhifang Wang ◽  
Yipeng Ren ◽  
Ye Zhu ◽  
Lijing Hao ◽  
Yunhua Chen ◽  
...  
Keyword(s):  
Mechanical Strength ◽  
Self Healing ◽  
Supramolecular Hydrogel ◽  
High Mechanical Strength
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