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Title: Egg white protein-hypophosphorous acid-based fire retardant single bilayer coating assembly for cotton fabrics
Authors: Vishwakarma A.
Reddy V.J.
Kandola B.K.
Kumar V.
Dasari A.
Chattopadhyay, Sujay
Published in: Cellulose
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. Graphic abstract: [Figure not available: see fulltext.] © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
Citation: Cellulose, 28(16): 10689-10705
Issue Date: 2021
Publisher: Springer Science and Business Media B.V.
Keywords: Cotton
Fire retardant
Hypophosphorous acid
ISSN: 9690239
Author Scopus IDs: 57267384400
Author Affiliations: Vishwakarma, A., Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
Reddy, V.J., Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
Kandola, B.K., Institute for Materials Research and Innovation, University of Bolton, Deane Road, Bolton, BL3 5AB, United Kingdom
Kumar, V., Centre for Rural Development and Technology, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India
Dasari, A., School of Materials Science and Engineering (Blk. N4.1), Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639789, Singapore
Chattopadhyay, S., Department of Polymer and Process Engineering, IIT Roorkee Saharanpur Campus, Saharanpur, 247001, India
Funding Details: Financial support to execute the experimental work through MHRD (Ministry of Human Resources Development) Plan grant (2019-20) and IIT Roorkee (Indian Institute of Technology Roorkee (No. IITR/SRIC/OH-35-71-142), India. is gratefully acknowledged. Indian Institute of Technology Roorkee, IITR: IITR/SRIC/OH-35-71-142; Ministry of Education, India, MoE: 2019-20
Corresponding Author: Chattopadhyay, S.; Department of Polymer and Process Engineering, India; email:
Appears in Collections:Journal Publications [PE]

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