Preparation of multi-hydroxy chitosan derivative and its synergistic effect on fire performance and mechanical properties of epoxy resin
Article
Article Title | Preparation of multi-hydroxy chitosan derivative and its synergistic effect on fire performance and mechanical properties of epoxy resin |
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ERA Journal ID | 1477 |
Article Category | Article |
Authors | Yan, Jing, Jiang, Haiqing, Gao, Na, Zhang, Xiangnan, Liu, Xingyu, Huo, Siqi, Lu, Jing and Wang, Junjie |
Journal Title | Journal of Thermal Analysis and Calorimetry: an international forum for thermal studies |
Number of Pages | 15 |
Year | 2025 |
Publisher | Springer |
Place of Publication | United States |
ISSN | 1388-6150 |
1572-8943 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s10973-024-13982-z |
Web Address (URL) | https://link.springer.com/article/10.1007/s10973-024-13982-z |
Abstract | A chitosan derivative, named as HCS, was synthesized by a simple reaction of para-hydroxybenzaldehyde with chitosan (CS), and was then used in combination with 9, 10-dihydro-9-oxa-10-phenanthrene-10-oxide (DOPO) to obtain a biomass-based intumescent flame retardant (IFR) in epoxy resins (EPs). At a total addition of 5 mass% and a mass ratio of DOPO to HCS being 3:1, the modified EP (S4) successfully passed the vertical combustion (UL-94) V-0 rating with a limit oxygen index (LOI) value of up to 33.0%. CC tests showed a 21.6% reduction in both peak smoke production rate (PSPR) and peak heat release rate (PHRR), and 71.4% reduction in total smoke production (TSP) for sample S4 compared with EP. Ulteriorly, XPS, FTIR, SEM and Raman tests were performed on the char residues of different modified samples after CC tests. These results showed that the char residue of sample S4 had an intact and dense structure, which played a role in preventing hot and gas exchange. In a word, the combination of HCS and DOPO imparted better flame retardancy properties to the epoxy resin than the singular use of them. Additionally, the mechanical properties of the modified EPs were not impaired by the addition of HCS and DOPO. |
Keywords | Flame retardant; Epoxy resin ; Chitosan derivative; DOPO |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
Byline Affiliations | Wuhan Textile University, China |
Jingzhou Administration of Work Safety, China | |
School of Engineering | |
Centre for Future Materials |
https://research.usq.edu.au/item/zw75z/preparation-of-multi-hydroxy-chitosan-derivative-and-its-synergistic-effect-on-fire-performance-and-mechanical-properties-of-epoxy-resin
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