Engineering phosphorus-containing lignin for epoxy biocomposites with enhanced thermal stability, fire retardancy and mechanical properties
Article
Article Title | Engineering phosphorus-containing lignin for epoxy biocomposites with enhanced thermal stability, fire retardancy and mechanical properties |
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ERA Journal ID | 4724 |
Article Category | Article |
Authors | Zhang, Anlin, Zhang, Jianzhong, Liu, Lina, Dai, Jinfeng, Lu, Xinyu, Huo, Siqi, Hong, Min, Liu, Xiaohuan, Lynch, Mark, Zeng, Xuesen, Burey, Paulomi and Song, Pingan |
Journal Title | Journal of Materials Science and Technology |
Journal Citation | 167, pp. 82-93 |
Number of Pages | 12 |
Year | 2023 |
Publisher | Elsevier |
Place of Publication | China |
ISSN | 1005-0302 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jmst.2023.06.004 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1005030223005170 |
Abstract | Fabricating a high-performing thermoset using bio-based flame retardant is critical for the sustainable development of engineering materials with superior fire safety and robust mechanical properties. Herein, the epoxy (EP) composites with the industrial requirements are manufactured with a novel high-efficient, lignin-based flame retardant named DAL-x, which is fabricated by grafting 9, 10-dihydro-9-oxa-10-phosphaze-10-oxide (DOPO) onto lignin. The resulting DAL-x/EP composite exhibits excellent flame retardancy with a desirable UL-94 V-0 rating and a satisfactory limiting oxygen index (LOI) of 29.8% due to the appropriate phosphorus content of DAL-x with adjustable molecular chain structure. Moreover, the DAL-x/EP composite shows an unexpected improvement in the elastic modulus (∼36%) and well-preserved strength and ductility compared with those of pure EP. This work offers a feasible strategy for creating efficient bio-based flame retardants utilizing industrial waste lignin and preparing high-performance EP composites that meet the demanding requirement of fire retardancy in industries, contributing to the circular economy and sustainability. |
Keywords | Epoxy resin; Lignin; Flame retardancy; Thermal stability; Mechanical property |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Zhejiang A & F University, China |
Centre for Future Materials | |
Taizhou University, China | |
School of Agriculture and Environmental Science |
https://research.usq.edu.au/item/z0z45/engineering-phosphorus-containing-lignin-for-epoxy-biocomposites-with-enhanced-thermal-stability-fire-retardancy-and-mechanical-properties
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