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Published in: Cellulose 5/2021

09-02-2021 | Original Research

A novel biomass vitamin B6-based flame retardant for lyocell fibers

Authors: Xiaowei Su, Chunzu Cheng, Yunbo Zheng, Xiaohui Liu, Yuanlin Ren, Ju He, Shenggen Lin, Bowen Cheng

Published in: Cellulose | Issue 5/2021

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Abstract

A biomass vitamin B6-based flame retardant, ammonium salt of pyridoxine phosphoric ester acid (ASPPEA) was synthesized and used for modification of lyocell fibers. FTIR, XPS and EDX analyses indicated that lyocell fibers had been successfully grafted with ASPPEA. The ASPPEA improved the char-forming ability, as evidenced by the increase of the char residue (51 wt%) of ASPPEA-treated lyocell fibers. The limiting oxygen index (LOI) value of ASPPEA-treated lyocell fabrics increased up to 48.3%. After 450 min washing, the LOI value remained 30.8%, thus demonstrating the flame retardant durability. The total heat release of ASPPEA-treated lyocell fabrics decreased by 82.5%. During the pyrolysis, the ASPPEA decomposed to produce acidic substances which promoted the dehydration and char formation of lyocell fibers, thus blocked the exchange of heat and flammable gas. This research proposes a novel application of vitamin B6 to impart lyocell fibers with flame retardancy.

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Literature
Metadata
Title
A novel biomass vitamin B6-based flame retardant for lyocell fibers
Authors
Xiaowei Su
Chunzu Cheng
Yunbo Zheng
Xiaohui Liu
Yuanlin Ren
Ju He
Shenggen Lin
Bowen Cheng
Publication date
09-02-2021
Publisher
Springer Netherlands
Published in
Cellulose / Issue 5/2021
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-03681-5

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