Structure, chain dynamics and mechanical properties of poly(vinyl alcohol)/phytic acid composites
Article
Article Title | Structure, chain dynamics and mechanical properties of poly(vinyl alcohol)/phytic acid composites |
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ERA Journal ID | 210299 |
Article Category | Article |
Authors | Li, Lujuan (Author), Xu, Xiaodong (Author), Wang, Bingtao (Author), Song, Pingan (Author), Cao, Qianqian (Author), Yang, Yang (Author), Xu, Zhiguang (Author) and Wang, Hao (Author) |
Journal Title | Composites Communications |
Journal Citation | 28, pp. 1-6 |
Article Number | 100970 |
Number of Pages | 6 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 2452-2139 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.coco.2021.100970 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2452213921003466 |
Abstract | The global micro- and nano-plastic issue has greatly triggered the development of advanced biodegradable polymeric materials. The creation of biodegradable polyvinyl alcohol (PVA)/phytic acid (PhyAc) composite represents a sustainable solution. However, it remains unclear how PhyAc molecules affect intermolecular hydrogen-bonding (H-bonding), structure, chain dynamics and mechanical properties of PVA so far. Herein, we explore structure, chain dynamics and mechanical properties of PVA/PhyAc composite by combining molecular dynamics simulation and experimental. The number of PVA-PhyAc H-bonds per PhyAc molecule and that of total H-bonds show different PhyAc content dependence. The PVA composite with 1.9 wt% of PhyAc shows a lower free volume and a smaller diffusion coefficient. Meanwhile, the glass transition temperature (Tg) of PVA reaches the maximum value at ca. 1.25 wt% of PhyAc. Interestingly, 10 wt% PhyAc endows PVA with the highest tensile strength in addition to a good antibacterial capability. This work reveals how small molecules affect structure and mechanical properties of polymers and contributes to expanding practical applications of PVA/PhyAc in industry. |
Keywords | Chain dynamics; Mechanical property; Phytic acid; Poly(vinyl alcohol) |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Centre for Future Materials |
Zhejiang A & F University, China | |
NingboTech University, China | |
Jiaxing University, China | |
Jilin University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6zvy/structure-chain-dynamics-and-mechanical-properties-of-poly-vinyl-alcohol-phytic-acid-composites
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