Flame-retardant coating by alternate assembly of poly(vinylphosphonic acid) and polyethylenimine for ramie fabrics
Article
Article Title | Flame-retardant coating by alternate assembly of poly(vinylphosphonic acid) and polyethylenimine for ramie fabrics |
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ERA Journal ID | 3960 |
Article Category | Article |
Authors | Wang, Li-li (Author), Zhang, Tao (Author), Yan, Hong-quiang (Author), Peng, Mao (Author), Fang, Zheng-ping (Author), Li, Yan (Author) and Wang, Hao (Author) |
Journal Title | Chinese Journal of Polymer Science |
Gaofenzi Xuebao | |
Journal Citation | 32 (3), pp. 305-314 |
Number of Pages | 10 |
Year | 2014 |
Publisher | Chinese Chemical Society |
Springer | |
Place of Publication | China |
ISSN | 0256-7679 |
1439-6203 | |
1000-3304 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s10118-014-1408-y |
Web Address (URL) | http://link.springer.com/article/10.1007%2Fs10118-014-1408-y |
Abstract | A novel intumescent flame retardant coating, consisting of poly(vinylphosphonic acid) (PVPA) as the acid source and branched polyethylenimine (BPEI) as the blowing agent, was constructed on the surface of ramie fabrics by alternate assembly to remarkably improve the flame retardancy of ramie. The PVPA/BPEI coating on the surface of individual fibers of ramie fabric pyrolyzes to form protective char layer upon heating/burning and improves the flame retardancy of ramie. Thermogravimetric analysis reveals that the PVPA/BPEI-coated ramie fabrics left as much as 25.8 wt% residue at 600 °C, while the control (uncoated) fabric left less than 1.4 wt% residue. Vertical flame test shows that all PVPA/BPEI-coated fabrics have shorter after-flame time, and the residues well preserved the original weave structure and fiber morphology, whereas, the uncoated fabric left only ashes. Microscale combustion calorimetry shows that the PVPA/BPEI coatings greatly reduce the total heat release by as much as 66% and the heat release capacity by 76%, relative to those of the uncoated fabric. © Chinese Chemical Society. |
Keywords | alternative assembly; flame retardant; poly(vinylphosphonic acid); ramie fabric |
ANZSRC Field of Research 2020 | 401413. Textile technology |
Public Notes | © Chinese Chemical Society. |
Byline Affiliations | Zhejiang University, China |
Tongji University, China | |
Centre of Excellence in Engineered Fibre Composites | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2zx9/flame-retardant-coating-by-alternate-assembly-of-poly-vinylphosphonic-acid-and-polyethylenimine-for-ramie-fabrics
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