A nano-TiO2/regenerated cellulose biohybrid enabled simultaneous improvements in strength and toughness for solid epoxy resins
Article
Article Title | A nano-TiO2/regenerated cellulose biohybrid enabled simultaneous improvements in strength and toughness for solid epoxy resins |
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ERA Journal ID | 4884 |
Article Category | Article |
Authors | Yang, Jiayao (Author), Wang, Hengxu (Author), Liu, Xiaohuan (Author), Fu, Shenyuan (Author) and Song, Pingan (Author) |
Journal Title | Composites Science and Technology |
Journal Citation | 212, pp. 1-9 |
Article Number | 108884 |
Number of Pages | 9 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0266-3538 |
1879-1050 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compscitech.2021.108884 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0266353821002402 |
Abstract | The intrinsic brittleness has significantly restricted practical applications of epoxy resins. Existing toughening strategies often lead to degraded mechanical strength. Hence, it has been attractive but a huge challenge to design high-performance sustainable additives that can simultaneously improve strength and toughness of epoxy resins. Here, we report the synthesis of a nano-TiO2/regenerate cellulose (RC) biohybrid via a facile microwave method for strengthening and toughening a soft epoxy resin system (modulus below 1 GPa). Our results show that with 10 phr nano-TiO2/RC, the resultant epoxy composite exhibits simultaneous enhancements in tensile strength and impact toughness, ca. 38% and 40% higher than corresponding values of virgin epoxy resin because of improved interfacial compatibility. Moreover, the addition of as-designed nano-TiO2/RC can enhance thermostability of epoxy resin. It has a slightly negative effect on the curing reaction but does not change the curing mechanism of epoxy resins. This study provides a facile, efficient and green method for preparing bifunctional additive for creating strong and tough epoxy composites, which are expected to find wider applications in industries. |
Keywords | cellulose; Nano-TiO2; solid epoxy resin; toughening; strengthening |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
401602. Composite and hybrid materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q6vv8/a-nano-tio2-regenerated-cellulose-biohybrid-enabled-simultaneous-improvements-in-strength-and-toughness-for-solid-epoxy-resins
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