Extremely Tough and Healable Elastomer Realized via Reducing the Crystallinity of Rigid Domain

2021 ◽  
Author(s):  
Chong Xing ◽  
Haomin Wu ◽  
Ruichun Du ◽  
Qiuhong Zhang ◽  
Xudong Jia
Keyword(s):  
Metal Ions ◽  
Self Healing ◽  
High Toughness

We propose a new concept of “toughening the rigid” by adding metal ions to sacrifice the crystallinity of the rigid domain, which makes the elastomers with high toughness and self-healing...

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.

Photocurable 3D Printing of High Toughness and Self‐Healing Hydrogels for Customized Wearable Flexible Sensors

2021 ◽  
pp. 2107202
Author(s):  
Yuchao Wu ◽  
Yong Zeng ◽  
Yizhen Chen ◽  
Chao Li ◽  
Renhui Qiu ◽  
...  
Keyword(s):  
3D Printing ◽  
Self Healing ◽  
Flexible Sensors ◽  
High Toughness

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 All‐Around Universal and Photoelastic Self‐Healing Elastomer with High Toughness and Resilience (Adv. Sci. 24/2021)

2021 ◽  
Vol 8 (24) ◽  
pp. 2170161
Author(s):  
Jarkko Tolvanen ◽  
Mikko Nelo ◽  
Jari Hannu ◽  
Jari Juuti ◽  
Heli Jantunen
Keyword(s):  
Self Healing ◽  
High Toughness

Bio-based, Robust, Shape Memory, Self-Healing and Recyclable Elastomer Based on Semi-interpenetrating Dynamic Network

2021 ◽  
Author(s):  
Xin Qi ◽  
Jichuan Zhang ◽  
Liqun Zhang ◽  
Dongmei Yue
Keyword(s):  
Shape Memory ◽  
Dynamic Network ◽  
Self Healing ◽  
High Toughness

Fabricating materials with a combination of high toughness, self-healing, shape memory and reprocessing properties, especially derived from renewable precursors, remains a challenge. Herein, we demonstrate a simple way to prepare...

An efficient supramolecular adsorbent for co-adsorption of dyes and metal ions from wastewater and its application in self-healing materials

Soft Matter ◽  
2017 ◽  
Vol 13 (46) ◽  
pp. 8772-8780 ◽  
Author(s):  
Liwei Yan ◽  
Mingqian Lv ◽  
Chunjiao Su ◽  
Leihao Zheng ◽  
Jialing Li ◽  
...  
Keyword(s):  
Metal Ions ◽  
Binary Mixtures ◽  
Co Adsorption ◽  
Self Healing ◽  
Efficient Adsorbent

An efficient adsorbent was prepared for the adsorption of dyes, metals, and dye mixture or binary mixtures of dyes and metals, which could also be used as a self-healing material.

pH-dependent and self-healing properties of mussel modified poly(vinyl alcohol) hydrogels in a metal-free environment

RSC Advances ◽  
2015 ◽  
Vol 5 (100) ◽  
pp. 82252-82258 ◽  
Author(s):  
Dongjian Shi ◽  
Rongjin Liu ◽  
Weifu Dong ◽  
Xiaojie Li ◽  
Hongji Zhang ◽  
...  
Keyword(s):  
Metal Ions ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
Metal Free ◽  
Simple Strategy ◽  
Ph Dependent ◽  
Free Environment ◽  
Pva Hydrogel

We describe a simple strategy towards a DOPA-based PVA hydrogel with pH-dependent and rapid self-healing properties in the absence of metal ions. The hydrogel could self-heal in 270 s which was much quicker than that prepared in the presence of Fe3+.

Self-assembly of guanosine and deoxy-guanosine into hydrogels: monovalent cation guided modulation of gelation, morphology and self-healing properties

2014 ◽  
Vol 2 (30) ◽  
pp. 4802-4810 ◽  
Author(s):  
Bimalendu Adhikari ◽  
Afzal Shah ◽  
Heinz-Bernhard Kraatz
Keyword(s):  
Metal Ions ◽  
Self Assembly ◽  
Monovalent Cation ◽  
Purine Nucleoside ◽  
Self Healing

The gelation, morphological, fluorescence and thixotropic properties of the purine nucleoside based hydrogels were found to modulate with metal ions.

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