Effect of Calcium Ion Crosslinked Alginate Based Coating on Flame Retardancy of Polyester-Cotton Fabric

Abstract:

Bio-based and phosphorus-free coating was fabricated by layer-by-layer assembly method to obtain the flame retardant polyester-cotton fabric. For the first time, the modified polyester-cotton fabrics were prepared by utilizing positively charged polyethylenimine and negatively charged alginate together with subsequent crosslinking of calcium ion. Scanning electron microscopy and energy-dispersive X-ray demonstrated that the calcium ion crosslinked coating was successfully constructed on the substrate. The flame retardancy was investigated by horizontal flame test. The fire resistance of SA/PEI-Ca sample was enhanced significantly compared with the pure sample, as evidenced by the obvious reduction (16%) of flame spread rate and complete char residue.

• Periodical: Materials Science Forum (Volume 909)
• Pages: 145-150
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.909.145
• Online since: November 2017
• Authors: Ying Pan, Lei Song, Yuan Hu
• Keywords: Alginate, Calcium Ions, Coating, Layer-by-Layer Assembly, Polyester-Cotton Fabric

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