Fully Biobased Surface-Functionalized Microcrystalline Cellulose via Green Self-Assembly toward Fire-Retardant, Strong, and Tough Epoxy Biocomposites
Article
Lou, Gaobo, Ma, Zhewen, Dai, Jinfeng, Bai, Zhicheng, Fu, Shenyuan, Huo, Siqi, Qian, Lijun and Song, Pingan. 2021. "Fully Biobased Surface-Functionalized Microcrystalline Cellulose via Green Self-Assembly toward Fire-Retardant, Strong, and Tough Epoxy Biocomposites." ACS Sustainable Chemistry and Engineering. 9 (40), pp. 13595-13605. https://doi.org/10.1021/acssuschemeng.1c04718
| Article Title | Fully Biobased Surface-Functionalized Microcrystalline Cellulose via Green Self-Assembly toward Fire-Retardant, Strong, and Tough Epoxy Biocomposites |
|---|---|
| ERA Journal ID | 200101 |
| Article Category | Article |
| Authors | Lou, Gaobo (Author), Ma, Zhewen (Author), Dai, Jinfeng (Author), Bai, Zhicheng (Author), Fu, Shenyuan (Author), Huo, Siqi (Author), Qian, Lijun (Author) and Song, Pingan (Author) |
| Journal Title | ACS Sustainable Chemistry and Engineering |
| Journal Citation | 9 (40), pp. 13595-13605 |
| Number of Pages | 11 |
| Year | 2021 |
| Publisher | American Chemical Society |
| Place of Publication | United States |
| ISSN | 2168-0485 |
| Digital Object Identifier (DOI) | https://doi.org/10.1021/acssuschemeng.1c04718 |
| Web Address (URL) | https://pubs.acs.org/doi/full/10.1021/acssuschemeng.1c04718 |
| Abstract | The design of renewable and fully biobased flame retardants (FRs) with high efficiencies and mechanical reinforcement functions for epoxy resin (EP) can greatly advance their potentials to satisfy sustainability. Although some biobased fire retardants have been successfully developed so far, most of existing biobased FRs are often not fully biobased and their syntheses normally involve the use of a large volume of organic solvents in addition to complicated synthesis processes. Herein, we report a facile and green strategy to synthesize fully biobased FR (P-MCC@CS@PA-Na) by surface-functionalizing microcrystalline cellulose (MCC) with chitosan (CS) and sodium phytate (PA-Na) via layer-by-layer assembly in water. The results show that incorporating 15 wt % P-MCC@CS@PA-Na enables EP composite to pass a UL-94 V-1 rating with a limiting oxygen index of 26.2%. Meanwhile, the peak heat release rate, total heat release, peak smoke production release, total smoke production, the fire growth rate, and the fire retardancy index of the EP/15 wt % P-MCC@CS@PA-Na are greatly reduced, indicating a good fire retardance. Notably, the well-designed P-MCC@CS@PA-Na simultaneously strengthens and toughens the EP because of uniform dispersion and a favorable interfacial compatibility between P-MCC@CS@PA-Na and the EP matrix. This work provides a green strategy for the fabrication of highly efficient multifunctional fully biobased FRs for polymers. |
| Keywords | Bio-based; Biocomposite; Epoxy; Flame-retardancy; Functionalized; Higher efficiency; Large volumes; Mechanical reinforcement; Micro-crystalline cellulose; Smoke production |
| Contains Sensitive Content | Does not contain sensitive content |
| ANZSRC Field of Research 2020 | 401605. Functional materials |
| 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 |
| NingboTech University, China | |
| Beijing Technology and Business University, China | |
| Centre for Future Materials | |
| 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 |
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https://research.usq.edu.au/item/q6vw1/fully-biobased-surface-functionalized-microcrystalline-cellulose-via-green-self-assembly-toward-fire-retardant-strong-and-tough-epoxy-biocomposites
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