A Highly Stretchable, Self-Healing Elastomer with Rate Sensing Capability Based on a Dynamic Dual Network

2021 ◽  
Vol 13 (7) ◽  
pp. 9043-9052
Author(s):  
Peiyao Qu ◽  
Chi Lv ◽  
Yuhao Qi ◽  
Lu Bai ◽  
Junping Zheng
Keyword(s):  
Self Healing ◽  
Highly Stretchable

scholarly journals Ultrarobust, tough and highly stretchable self-healing materials based on cartilage-inspired noncovalent assembly nanostructure

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yuyan Wang ◽  
Xin Huang ◽  
Xinxing Zhang
Keyword(s):  
Spider Silk ◽  
Self Healing ◽  
High Toughness ◽  
Healing Efficiency ◽  
Strong Interfacial Interaction ◽  
Highly Stretchable ◽  
Noncovalent Bonds ◽  
Actuation Devices ◽  
Noncovalent Bonding ◽  
Polyurethane Matrix

AbstractSelf-healing materials integrated with excellent mechanical strength and simultaneously high healing efficiency would be of great use in many fields, however their fabrication has been proven extremely challenging. Here, inspired by biological cartilage, we present an ultrarobust self-healing material by incorporating high density noncovalent bonds at the interfaces between the dentritic tannic acid-modified tungsten disulfide nanosheets and polyurethane matrix to collectively produce a strong interfacial interaction. The resultant nanocomposite material with interwoven network shows excellent tensile strength (52.3 MPa), high toughness (282.7 MJ m‒3, which is 1.6 times higher than spider silk and 9.4 times higher than metallic aluminum), high stretchability (1020.8%) and excellent healing efficiency (80–100%), which overturns the previous understanding of traditional noncovalent bonding self-healing materials where high mechanical robustness and healing ability are mutually exclusive. Moreover, the interfacical supramolecular crosslinking structure enables the functional-healing ability of the resultant flexible smart actuation devices. This work opens an avenue toward the development of ultrarobust self-healing materials for various flexible functional devices.

Highly Stretchable PU Ionogels with Self-Healing Capability for a Flexible Thermoelectric Generator

2021 ◽  
Author(s):  
Junhuai Xu ◽  
Hui Wang ◽  
Xiaosheng Du ◽  
Xu Cheng ◽  
Zongliang Du ◽  
...  
Keyword(s):  
Thermoelectric Generator ◽  
Self Healing ◽  
Highly Stretchable ◽  
Flexible Thermoelectric

Non-covalent assembly of a super-tough, highly stretchable and environmentally adaptable self-healing material inspired by nacre

2021 ◽  
Vol 9 (36) ◽  
pp. 20737-20747
Author(s):  
Xiaobo Zhu ◽  
Wenru Zheng ◽  
Haichao Zhao ◽  
Liping Wang
Keyword(s):  
Mechanical Strength ◽  
Self Healing ◽  
Highly Stretchable

Inspired by nacre, a super-tough self-healing material with a reverse nacre structure and interwoven network was prepared, which solved the contradiction between fast self-healing ability and good mechanical strength of traditional PU materials.

A transparent, highly stretchable, self-healing polyurethane based on disulfide bonds

2019 ◽  
Vol 112 ◽  
pp. 822-831 ◽  
Author(s):  
Kun Chang ◽  
Han Jia ◽  
Shu-Ying Gu
Keyword(s):  
Disulfide Bonds ◽  
Self Healing ◽  
Highly Stretchable

A highly stretchable, self-healing, recyclable and interfacial adhesion gel: Preparation, characterization and applications

2019 ◽  
Vol 360 ◽  
pp. 334-341 ◽  
Author(s):  
Ruofei Hu ◽  
Jing Zhao ◽  
Yihe Wang ◽  
Zhongxiao Li ◽  
Junping Zheng
Keyword(s):  
Interfacial Adhesion ◽  
Self Healing ◽  
Highly Stretchable ◽  
Gel Preparation

Inorganic salt transition states: a stable and highly stretchable elastomer-like phase (ELP) of phosphate salts at the air–solid interface

2018 ◽  
Vol 54 (71) ◽  
pp. 9973-9976 ◽  
Author(s):  
Ya Wang ◽  
Rongzhan Fu ◽  
Zhiguang Duan ◽  
Xijuan Jiang ◽  
Chenhui Zhu ◽  
...  
Keyword(s):  
Inorganic Salt ◽  
Transition States ◽  
Self Healing ◽  
Multilayered Structures ◽  
Solid Interface ◽  
Highly Stretchable ◽  
Phosphate Salts

An ultra-high stable elastomer-like phase (ELP) of phosphate salts was formed at the air–solid interface of a specially designed substrate, possessing multilayered structures, elasticity and self-healing abilities.

Ultrarobust, tough and highly stretchable self-healing materials based on cartilage-inspired noncovalent assembly nanostructure

2020 ◽  
Author(s):  
Yuyan Wang ◽  
Xin Huang ◽  
Xinxing Zhang
Keyword(s):  
Spider Silk ◽  
Interfacial Interaction ◽  
Self Healing ◽  
Flexible Devices ◽  
High Toughness ◽  
Healing Efficiency ◽  
Strong Interfacial Interaction ◽  
Highly Stretchable ◽  
Noncovalent Bonds ◽  
Noncovalent Bonding

Abstract Self-healing materials integrated with robust mechanical strength and high healing efficiency simultaneously would be of great use in many fields but have been proven to be extremely challenging. Here, inspired by animal cartilage, we present a ultrarobust self-healing material by incorporating high density noncovalent bonds at interface between the assembled interwoven network of two-dimensional nanosheets and polymer matrix to collectively produce a strong interfacial interaction. The resulted nanocomposite material shows robust tensile strength (52.3 MPa), high toughness (282.7 MJ m–3, which is 1.6 times higher than spider silk and 9.4 times higher than metallic aluminum), high stretchability (1020.8%) and excellent healing efficiency (80-100%), which overturns previous understanding of the traditional noncovalent bonding self-healing materials that high mechanical robustness and healing ability tend to be mutually exclusive. Moreover, the interfacical supramolecular crosslinking structure enables the functional-healing ability of the resultant flexible devices. This work opens an avenue toward the development of ultrarobust self-healing materials for various flexible functional devices.

scholarly journals A Self-Healing Polymer with Fast Elastic Recovery upon Stretching

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 597 ◽  
Author(s):  
Pei-Chen Zhao ◽  
Wen Li ◽  
Wei Huang ◽  
Cheng-Hui Li
Keyword(s):  
Room Temperature ◽  
Elastic Recovery ◽  
Self Healing ◽  
Original Length ◽  
Healing Efficiency ◽  
Recovery Behavior ◽  
Long Time ◽  
Highly Stretchable ◽  
Soft Actuators

The design of polymers that exhibit both good elasticity and self-healing properties is a highly challenging task. In spite of this, the literature reports highly stretchable self-healing polymers, but most of them exhibit slow elastic recovery behavior, i.e., they can only recover to their original length upon relaxation for a long time after stretching. Herein, a self-healing polymer with a fast elastic recovery property is demonstrated. We used 4-[tris(4-formylphenyl)methyl]benzaldehyde (TFPM) as a tetratopic linker to crosslink a poly(dimethylsiloxane) backbone, and obtained a self-healing polymer with high stretchability and fast elastic recovery upon stretching. The strain at break of the as-prepared polymer is observed at about 1400%. The polymer can immediately recover to its original length after being stretched. The damaged sample can be healed at room temperature with a healing efficiency up to 93% within 1 h. Such a polymer can be used for various applications, such as functioning as substrates or matrixes in soft actuators, electronic skins, biochips, and biosensors with prolonged lifetimes.

Sign in / Sign up

Export Citation Format

Share Document