Bioinspired Strong, Tough, and Biodegradable Poly(Vinyl Alcohol) and its Applications as Substrates for Humidity Sensors
Article
Article Title | Bioinspired Strong, Tough, and Biodegradable Poly(Vinyl Alcohol) and its Applications as Substrates for Humidity Sensors |
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ERA Journal ID | 211618 |
Article Category | Article |
Authors | Liu, Lei, Xu, Xiaodong, Zhu, Menghe, Cui, Xihua, Feng, Jiabing, Faraji Rad, Zahra, Wang, Hao and Song, Pingan |
Journal Title | Advanced Materials Technologies |
Year | 2023 |
Publisher | Wiley-VCH Verlag GmbH & Co. KGaA |
Place of Publication | Germany |
ISSN | 2365-709X |
Digital Object Identifier (DOI) | https://doi.org/10.1002/admt.202201414 |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/10.1002/admt.202201414 |
Abstract | Biodegradable polymeric materials with high strength and outstanding toughness are necessary for real-world applications in the fields of electronics, electrics, and packaging. Unfortunately, such performance portfolios in polymers remain challenging to achieve due to their different governing mechanisms. Inspired by the hydrogen-bond (H-bond) cross-linking structure of spider silk, herein, strong and tough poly(vinyl alcohol) (PVA) composites with β-cyclodextrin as a cross-linker are developed. Benefiting from the H-bond cross-linking effect, the addition of 1.0 wt% of β-cyclodextrin enables PVA to achieve a high tensile strength of 136.5 MPa, and a high elastic modulus of 3.0 GPa, in combination with a good toughness of 82.1 MJ m−3. In addition, the presence of β-cyclodextrin improves the biodegradability of PVA composite by decreasing its crystalline size. Furthermore, PVA/β-cyclodextrin composite combined with MXene has great potential as a sensor material for humidity and strain detection. This proof-of-concept opens numerous opportunities to create strong, tough, and biodegradable polymers for packing and sensing applications. |
Keywords | biodegradability; cyclodextrin; hydrogen-bonded nanodomain; poly(vinyl alcohol); toughness |
ANZSRC Field of Research 2020 | 401699. Materials engineering not elsewhere classified |
401609. Polymers and plastics | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Qingdao University of Science and Technology, China |
Sichuan University, China | |
Jiaxing University, China | |
Centre for Future Materials | |
School of Engineering | |
School of Agriculture and Environmental Science |
https://research.usq.edu.au/item/w5x2y/bioinspired-strong-tough-and-biodegradable-poly-vinyl-alcohol-and-its-applications-as-substrates-for-humidity-sensors
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