LBL generated fire retardant nanocomposites on cotton fabric using cationized starch-clay-nanoparticles matrix

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In this work, starch-clay-TiO2-based nanocomposites were deposited on cotton fabric through layer-by-layer (LBL) process and their effect on the flame retardancy, inhibition of pyrolysis and combustion processes were discussed in details. Polyelectrolyte solutions/suspensions of cationized starch and VMT (vermiculite)/TiO2 nanoparticles were used to deposit these nanocomposites in the form of multi-layered coatings (5, 7, 10 and 15 bilayers). Uniform fabric coverage and presence of electrolytes was imaged by scanning electron microcopy (LVSEM), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and EDX characterizations. The greatest pyrolysis reduction was found for the StVT-7 sample (7 bilayers); -30% and 21%, based on microscale combustion calorimetry (MCC) and thermogravimetric analysis (TGA). When using MCC, the improved values of the PHRR - 193 W/g, THR - 10.7 kJ/g), HRC - 390 J/g center dot K and LOI - 22.2% were found for the StVT-7 sample which was strongly supported by the UL-94 test.
Publisher
ELSEVIER SCI LTD
Issue Date
2021-11
Language
English
Article Type
Article
Citation

CARBOHYDRATE POLYMERS, v.274

ISSN
0144-8617
DOI
10.1016/j.carbpol.2021.118626
URI
http://hdl.handle.net/10203/288219
Appears in Collection
CH-Journal Papers(저널논문)
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