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Carbohydr Polym. 2015 Jan 22;115:516-24. doi: 10.1016/j.carbpol.2014.08.084. Epub 2014 Sep 2.

Formation of self-extinguishing flame retardant biobased coating on cotton fabrics via Layer-by-Layer assembly of chitin derivatives.

Author information

1
State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China; Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute of University of Science and Technology of China, 166 Ren'ai Road, Suzhou, Jiangsu 215123, People's Republic of China.
2
State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China.
3
State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China. Electronic address: leisong@ustc.edu.cn.
4
State Key Laboratory of Fire Science, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, People's Republic of China; Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute of University of Science and Technology of China, 166 Ren'ai Road, Suzhou, Jiangsu 215123, People's Republic of China. Electronic address: yuanhu@ustc.edu.cn.
5
Suzhou Key Laboratory of Urban Public Safety, Suzhou Institute of University of Science and Technology of China, 166 Ren'ai Road, Suzhou, Jiangsu 215123, People's Republic of China; Department of Building and Construction, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong.

Abstract

The self-extinguishing coating, consisting of biobased chitin derivatives, phosphorylated chitin and deacetylated chitin (chitosan), was deposited on cotton fabrics via the Layer-by-Layer (LbL) assembled method. The content of phosphorylated chitin prepared on cotton fabrics surface is dependent on the bilayers' number and concentration of phosphorylated chitin. In the vertical flame test, the cotton fabric with 20 bilayers prepared at the high phosphorylated chitin concentration (2 wt%) could extinguish the flame. Microcombustion calorimetry result showed that all coated cotton fabrics showed lower peak heat-release rate and total heat-release values compared with that of the pure one. Thermogravimetric analysis result indicated that thermal and thermal oxidation stability of all coated cotton fabrics were enhanced in the high temperature range (400-700°C). This work provided the flame retardant multilayer films based on fully biobased chitin derivatives on cotton fabrics to enhance its flame retardancy.

KEYWORDS:

Chitosan; Layer-by-Layer assembly method; Phosphorylated chitin; Self-extinguishing

PMID:
25439927
DOI:
10.1016/j.carbpol.2014.08.084
[Indexed for MEDLINE]

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