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Erschienen in: Cellulose 16/2021

23.09.2021 | Original Research

Egg white protein-hypophosphorous acid-based fire retardant single bilayer coating assembly for cotton fabrics

verfasst von: Ajay Vishwakarma, Vennapusa Jagadeeswara Reddy, Baljinder K. Kandola, Vivek Kumar, Aravind Dasari, Sujay Chattopadhyay

Erschienen in: Cellulose | Ausgabe 16/2021

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Abstract

The combination of egg white proteins (W) and hypophosphorous acid (HA) was used for developing a flame retardant coating for cotton fabrics by adopting the layer-by-layer assembly technique. This has resulted in a novel phosphorous-nitrogen-based assembly due to strong electrostatic interactions between W and HA. Coated cotton fabrics were characterized by using a variety of microscopic, analytical and thermal/combustion tests. Flammability properties of the fabrics were evaluated as per widely recognized standards like BS EN ISO 15025:2016 for protective clothing and ASTM D6413 for flame resistance of textiles. Coated cotton fabric showed self-extinguishing property with significant but fragile residual char structure, whereas uncoated fabric completely burnt with a little ash as residue. Thermogravimetric analysis revealed that decomposition temperature of coated fabric was lowered compared to control fabric, but char residue increased at 800 °C. Forced combustion cone calorimeter tests on the coated and uncoated fabrics showed that peak heat release rate, total heat released, and average rate of heat emission values reduced by 80%, 38%, and 40%, respectively, for coated fabrics as compared to control fabric. Even the mass loss rate value of the coated fabric has reduced significantly (from 514 g/m2.s for the uncoated fabric to 2 g/m2.s for coated fabric). Wash durability of the coated fabrics, though showed a slight reduction in flame-retardant properties as a consequence of ~ 9.7 wt% coating loss during soaking, yet there was no after-glow.

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Literatur
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Metadaten
Titel
Egg white protein-hypophosphorous acid-based fire retardant single bilayer coating assembly for cotton fabrics
verfasst von
Ajay Vishwakarma
Vennapusa Jagadeeswara Reddy
Baljinder K. Kandola
Vivek Kumar
Aravind Dasari
Sujay Chattopadhyay
Publikationsdatum
23.09.2021
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 16/2021
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-021-04208-8

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