Design of a mechanically strong and highly stretchable thermoplastic silicone elastomer based on coulombic interactions

2020 ◽  
Vol 8 (12) ◽  
pp. 5943-5951 ◽  
Author(s):  
Jinfeng Shi ◽  
Na Zhao ◽  
Dongying Yan ◽  
Jianhui Song ◽  
Wenxin Fu ◽  
...  

A thermoplastic silicone elastomer exclusively based on the salt-bonding between COOH and ZnO was successfully prepared, exhibiting excellent mechanical properties, high stretchability and temperature-assisted self-healing ability.

Author(s):  
Xiaobin Lin ◽  
Qingyi Xie ◽  
Chunfeng Ma ◽  
Guangzhao Zhang

Silicone elastomer coatings have attracted increasing attention owing to its eco-friendly nature, excellent fouling release ability and drag-reducing property. However, the poor mechanical properties and lack of fouling resistance limits...


RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 12479-12485 ◽  
Author(s):  
Yinlei Lin ◽  
Deliu He ◽  
Zhifeng Chen ◽  
Liying Wang ◽  
Guangji Li

A novel type of chemically and physically double-crosslinked network (CPDN) polymer hydrogels with excellent self-healing and mechanical properties were prepared and investigated.


Polymers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1392 ◽  
Author(s):  
Wenyan Li ◽  
Shengchang Lu ◽  
Mengchan Zhao ◽  
Xinxing Lin ◽  
Min Zhang ◽  
...  

Self-healing gels based on reshuffling disulfide bonds have attracted great attention due to their ability to restore structure and mechanical properties after damage. In this work, self-healing gels with different cellulose nanocrystals (CNC) contents were prepared by embedding the thiuram disulfide bonds into gels via polyaddition. By the reshuffling of thiuram disulfide bonds, the CNC-containing gels repair the crack and recover mechanical properties rapidly under visible light in air. The thiuram disulfide-functionalized gels with a CNC content of 2.2% are highly stretchable and can be stretched approximately 42.6 times of their original length. Our results provide useful approaches for the preparation of dynamic CNC-containing gels with implications in many related engineering applications.


2020 ◽  
Vol 11 (41) ◽  
pp. 6549-6558
Author(s):  
Yohei Miwa ◽  
Mayu Yamada ◽  
Yu Shinke ◽  
Shoichi Kutsumizu

We designed a novel polyisoprene elastomer with high mechanical properties and autonomous self-healing capability at room temperature facilitated by the coexistence of dynamic ionic crosslinks and crystalline components that slowly reassembled.


Author(s):  
Chen Hu ◽  
Malik Haider ◽  
Lukas Hahn ◽  
Mengshi Yang ◽  
Robert Luxenhofer

Hydrogels that can be processed with additive manufacturing techniques and concomitantly possess favorable mechanical properties are interesting for many advanced applications. However, the development of novel ink materials with high...


2021 ◽  
Author(s):  
Zhanyu Jia ◽  
Guangyao Li ◽  
Juan Wang ◽  
shouhua Su ◽  
Jie Wen ◽  
...  

Conductivity, self-healing and moderate mechanical properties are necessary for multifunctional hydrogels which have great potential in health-monitor sensor application. However, the combination of electrical conductivity, self-healing and good mechanical properties...


2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yuyan Wang ◽  
Xin Huang ◽  
Xinxing Zhang

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.


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

2021 ◽  
Vol 329 ◽  
pp. 115581
Author(s):  
Chaoxian Chen ◽  
Zhongcun Li ◽  
Siwen Chen ◽  
Lingzhi Kong ◽  
Zhihao Guo ◽  
...  

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