Improved flame retardancy on polyester fabrics using chitosan-modified clay

Subject Areas : Application of Textile Products in other Sciences and Disciplines

Sima  Habibi ¹ (Islamic Azad University, Yadegar-e-Imam Khomeini(RAH) shahr-e-rey Branch)
S  Nourbakhsh ² (Department of Textile Engineering, Islamic Azad University of Yadegar-e-Imam Khomeini (RAH) Shahr-e Ray Branch, Islamic Azad University, Tehran, Iran)
SH  Hakimpour ³ (Department of Textile Engineering, Islamic Azad University of Yadegar-e-Imam Khomeini (RAH) Shahr-e Ray Branch, Islamic Azad University, Tehran, Iran)

Received: 2022-11-13 Accepted : 2022-12-29 Published : 2023-02-20

Keywords: alkaline treatment, Chitosan, Nanoclay, Polyester, Flame retardancy,

Abstract :

The main objective of the present study was an improvement in flame retardancy (FR) of polyester fabric using modified clay as a green flame retardant. For this purpose, the polyester fabric was first treated with an alkaline agent, then nano-clay was modified with chitosan to form organo-clay and used as a flame-retardant finish for coating samples. To investigate the physical properties of samples, the water absorption and bending resistance of pristine polyester, alkaline, and modified clay-treated polyester were measured. Modified clay and surface-treated polyester fabrics were characterized using X-ray diffraction (XRD), Fourier Transform Infrared spectrometer (FTIR/ATR), and scanning electron microscopy (SEM). The study revealed that chitosan-modified clay treatment affects the flame retardancy of polyester samples through an increase in limiting oxygen index (LOI), char yield, and a decrease in melt dripping while burning.