Flame retardant and anti-dripping polyethylene terephthalate fabric based on bio-based phytic acid/gelatine coating

ABSTRACT

The application of polyethylene terephthalate (PET) is restricted due to its high flammability and dripping phenomenon. This paper used bio-based phytic acid (PA) and gelatine (G) for flame retardant and anti-dripping treatment of PET fabric. The coated PET fabric achieved a limiting oxygen index (LOI) value greater than 29.5% and no dripping phenomenon revealing that its flame retardancy and anti-dripping properties were obviously improved. The LOI value of PA/G coated PET fabric after washing was over 26% showing good washing durability. The PA/G coating could change the starting decomposition stability and the degradation process of PET fabric and promote to form the stable char. PA/G coating formed an intumescent flame retardant (IFR) system on PET fabric to act through the IFR mechanism. This research is expected to result in a novel eco-friendly coating for flame retardant and anti-dripping thermoplastic polyester fabric.

KEYWORDS:

• Polyethylene terephthalate fabric
• flame retardant
• anti-dripping
• bio-based coating
• phytic acid
• gelatine
• eco-friendl
• durability

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Natural Science Foundation of Anhui Province (No. 1908085QE225), Young and middle-aged Top Talent Project of Anhui Polytechnic University. We also acknowledge the funding support of The Key Laboratory of Flame Retardancy Finishing of Textile Materials, CNTAC (Q811580522).