Improved flame retardancy on polyester fabrics using chitosan-modified clay
محورهای موضوعی : 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)
کلید واژه: alkaline treatment, Nanoclay, Key Words: Chitosan, Polyester, Flame retardancy,
چکیده مقاله :
The main objective of present work was improvement in flame retardancy (FR) of polyester fabric using modified clay as green flame retardant. Achieving mentioned purpose, first polyester fabric was alkaline treated then nanoclay was modified with chitosan to form organo-clay and used as FR finish to coat samples. The water absorption and bending resistance of pristine polyester, alkaline and modified clay-treated polyester were also measured to investigate physical properties of samples. 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). It was concluded that chitosan- modified clay treatment has improving effect on flame retardancy of polyester samples through increase in limiting oxygen index (LOI), char yield and decrease in melt dripping while burning.Key Words: chitosan, nanoclay, polyester, alkaline treatment, Flame retardancy
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.
