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Super-tough, anti-fatigue, self-healable, antifogging and UV shielding hybrid hydrogel prepared via simultaneous dual in-situ sol-gel technique and radical polymerization

Abstract

In this work, we proposed a universal strategy to construct tough hybrid hydrogels simply by dual in-situ sol-gel reaction of vinyltriethoxysilane (VTES) and tetrabutyl titanate (TBOT), as well as in-situ radical polymerization of acrylamide (AM) and VTES. Interestingly, nano-SiO2 and nano-TiO2 acted as both multifunctional hybrid crosslinker and nanofiller in this hybrid hydrogel. Meanwhile, covalently bond consisted between TiO2 and SiO2, as well as polymers and SiO2, and non-covalently interaction existed between TiO2 and polymers, as well as the organic skeleton. The obtained hybrid hydrogel exhibited high tensile strength (38.78-330.50 kPa), medium tensile elastic modulus (26.53-120.48 kPa), ultrahigh compression strength (1.86-6.22 MPa), unprecedented fatigue resistance and self-healable due to its unique hierarchical inorganic hybrid crosslinking mechanism. In addition, this hydrogel also displayed considerable antifogging and UV-shielding property. So this hybrid hydrogel will have many potential to be used as soft robots, substitutes for load-bearing tissues, and optical devices.

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Publication details

The article was received on 02 Aug 2019, accepted on 05 Oct 2019 and first published on 07 Oct 2019


Article type: Paper
DOI: 10.1039/C9TB01625B
J. Mater. Chem. B, 2019, Accepted Manuscript

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    Super-tough, anti-fatigue, self-healable, antifogging and UV shielding hybrid hydrogel prepared via simultaneous dual in-situ sol-gel technique and radical polymerization

    J. Du, X. She, W. Zhu, Q. Yang, H. Zhang and C. Tsou, J. Mater. Chem. B, 2019, Accepted Manuscript , DOI: 10.1039/C9TB01625B

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