Molecularly Engineered Lignin-Derived Additives Enable Fire-Retardant, UV-Shielding, and Mechanically Strong Polylactide Biocomposites
Article
Article Title | Molecularly Engineered Lignin-Derived Additives Enable Fire-Retardant, UV-Shielding, and Mechanically Strong Polylactide Biocomposites |
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ERA Journal ID | 1666 |
Article Category | Article |
Authors | Yang, Haitang (Author), Shi, Bingbing (Author), Xue, Yijiao (Author), Ma, Zhewen (Author), Liu, Lina (Author), Liu, Lei (Author), Yu, Youming (Author), Zhang, Zhanying (Author), Annamalai, Pratheep K. (Author) and Song, Pingan (Author) |
Journal Title | Biomacromolecules |
Journal Citation | 22 (4), pp. 1432-1444 |
Number of Pages | 13 |
Year | 2021 |
Place of Publication | United States |
ISSN | 1525-7797 |
1526-4602 | |
Digital Object Identifier (DOI) | https://doi.org/10.1021/acs.biomac.0c01656 |
Web Address (URL) | https://pubs.acs.org/doi/10.1021/acs.biomac.0c01656 |
Abstract | From a perspective of sustainable development and practical applications, there has been a great need for the design of advanced polylactide (PLA) biocomposites that are flame-retardant, ultraviolet (UV)-resistant, and mechanically strong by using biomass-derived additives. Unfortunately, the achievement of a desirable performance portfolio remains unsatisfactory because of improper design strategies. Herein, we report the design of lignin-derived multifunctional bioadditives (TP-g-lignin) with tunable chemical compositions through graft polymerization of a phosphorus-/nitrogen-containing vinyl monomer (TP). Our results show that the incorporation of 5.0 wt % of TP-g-lignin (at a lignin-to-TP ratio of 1:4 by mass) enables PLA to achieve a desirable flame retardancy rating meeting the UL-94 V-0 industrial standard requirements. Meanwhile, the final PLA composite exhibits an exceptional UV-shielding capability. Moreover, with 5.0 wt % of the bio-derived additive, the elastic modulus of PLA is increased by ∼26%, while mechanical strength is fully retained due to engineered favorable interfaces. This work offers an innovative and sustainable strategy for creating bio-based multifunctional additives by using industrial lignin waste and further the application of PLA in the areas of packaging, fabrics, electronics, automobiles, etc. |
Keywords | Redox reactions; Composites; Plastics; Biopolymers; Organic polymers |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401605. Functional materials |
401602. Composite and hybrid materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hangzhou Normal University, China |
Zhejiang A & F University, China | |
Hohai University, China | |
Centre for Future Materials | |
Queensland University of Technology | |
University of Queensland | |
Institution of Origin | University of Southern Queensland |
Funding source | Australian Research Council (ARC) Grant ID DP190102992 |
Funding source | Australian Research Council (ARC) Grant ID FT190100188 |
https://research.usq.edu.au/item/q6vqw/molecularly-engineered-lignin-derived-additives-enable-fire-retardant-uv-shielding-and-mechanically-strong-polylactide-biocomposites
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