Novel antifouling self-healing poly(carboxybetaine methacrylamide-co-HEMA) nanocomposite hydrogels with superior mechanical properties

2013 ◽  
Vol 1 (41) ◽  
pp. 5644 ◽  
Author(s):  
Nina Yu. Kostina ◽  
Shahriar Sharifi ◽  
Andres de los Santos Pereira ◽  
Jiří Michálek ◽  
Dirk W. Grijpma ◽  
...  
2022 ◽  
Author(s):  
Dong Wang ◽  
Dingyao Liu ◽  
JianHua Xu ◽  
JiaJun Fu ◽  
Kai Wu

It is still a formidable challenge to develop ideal thermal dissipation materials with simultaneous high thermal conductivity, excellent mechanical softness and toughness, and spontaneous self-healing. Herein, we report the introduction...


Polymers ◽  
2020 ◽  
Vol 12 (6) ◽  
pp. 1416 ◽  
Author(s):  
Pejman Heidarian ◽  
Abbas Z. Kouzani ◽  
Akif Kaynak ◽  
Ali Zolfagharian ◽  
Hossein Yousefi

It is an ongoing challenge to fabricate an electroconductive and tough hydrogel with autonomous self-healing and self-recovery (SELF) for wearable strain sensors. Current electroconductive hydrogels often show a trade-off between static crosslinks for mechanical strength and dynamic crosslinks for SELF properties. In this work, a facile procedure was developed to synthesize a dynamic electroconductive hydrogel with excellent SELF and mechanical properties from starch/polyacrylic acid (St/PAA) by simply loading ferric ions (Fe3+) and tannic acid-coated chitin nanofibers (TA-ChNFs) into the hydrogel network. Based on our findings, the highest toughness was observed for the 1 wt.% TA-ChNF-reinforced hydrogel (1.43 MJ/m3), which is 10.5-fold higher than the unreinforced counterpart. Moreover, the 1 wt.% TA-ChNF-reinforced hydrogel showed the highest resistance against crack propagation and a 96.5% healing efficiency after 40 min. Therefore, it was chosen as the optimized hydrogel to pursue the remaining experiments. Due to its unique SELF performance, network stability, superior mechanical, and self-adhesiveness properties, this hydrogel demonstrates potential for applications in self-wearable strain sensors.


2020 ◽  
Vol 44 (23) ◽  
pp. 9903-9911 ◽  
Author(s):  
Xueqin Zhang ◽  
Ruqing Zhang ◽  
Shu Wu ◽  
Ying Sun ◽  
Hong Yang ◽  
...  

Using SDS-C18 micelle as a physical crosslinker and SiPU as a multifunctional chemical crosslinker, a new type of dual-crosslinked self-healing hydrogel with excellent stretchability, strength and resilience was synthesized.


2018 ◽  
Vol 6 (46) ◽  
pp. 23425-23434 ◽  
Author(s):  
Youhao Zhang ◽  
Li Yuan ◽  
Guozheng Liang ◽  
Aijuan Gu

Novel transparent and foldable polysiloxane films simultaneously showing superior mechanical properties, repeatable self-healing ability and high heat-resistance have been developed.


2020 ◽  
Vol 44 (18) ◽  
pp. 7395-7400 ◽  
Author(s):  
Shaobin Xu ◽  
Dekun Sheng ◽  
Yan Zhou ◽  
Haohao Wu ◽  
Haopu Xie ◽  
...  

The dual-dynamic networks endow polyurethane with excellent mechanical properties and autonomous self-healing ability.


2018 ◽  
Vol 42 (12) ◽  
pp. 10348-10356 ◽  
Author(s):  
Yang Wang ◽  
Ting Li ◽  
Piming Ma ◽  
Shengwen Zhang ◽  
Mingliang Du ◽  
...  

A fast NIR light-induced self-healing PCL nanocomposite with superior mechanical properties was achieved by tailoring the cyclic mechanical annealing process.


RSC Advances ◽  
2019 ◽  
Vol 9 (55) ◽  
pp. 31806-31811 ◽  
Author(s):  
Yinlei Lin ◽  
Zheng Zeng ◽  
Yuhao Li ◽  
Sheng Sun ◽  
Xiaoting Liu ◽  
...  

The prepared zwitterionic sulfobetaine nanocomposite hydrogels can autonomously repair incisions or cracks at ambient temperature without the need for any stimulus and possess excellent mechanical properties.


2020 ◽  
Vol 44 (25) ◽  
pp. 10390-10403
Author(s):  
Zhanxin Jing ◽  
Xueying Xian ◽  
Qiuhong Huang ◽  
Qiurong Chen ◽  
Pengzhi Hong ◽  
...  

Biocompatible double network PAmAA–Al3+/PVA/GO nanocomposite hydrogels based on non-covalent interactions were synthesized, and the non-covalent interactions endow the materials with good self-recovery and self-healing performances.


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