Study on the thermal and structural properties of gamma-irradiated polyethylene terephthalate fibers
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Adel A. El-Zahhar
,
Khalid M. Yassien
Abstract
Polyethylene terephthalate (PET) fiber samples were irradiated using different gamma radiation doses. The physicochemical and structural properties of the irradiated PET samples, either the pristine sample or the sample chemically modified with polyethylene glycol (PEG), were assessed using X-ray diffraction (XRD), differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) spectroscopy. The surface morphology and characteristics of the irradiated PET fiber samples were investigated using scanning electron microscopy (SEM). The pristine and PEG-modified PET fibers were exposed to gamma radiation with doses ranging from 0.5 to 20 kGy. The FTIR analysis results showed certain degradation via irradiation, deduced from a decrease in the intensities of most of the PET original infrared bands. The XRD and DSC analysis results indicated the reduction of crystallinity upon irradiation of pristine and modified PET fibers. Conversely, an improvement in the crystallinity was observed at high doses compared with low doses. The crystallinity of the PEG-modified PET was found to be improved. Two types of morphological changes, wrinkles and small particles, were observed on the PET fiber surface due to gamma irradiation.
Research funding: The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through the Research Groups Program under grant number R.G.P1./72/40.
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©2020 Walter de Gruyter GmbH, Berlin/Boston
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Artikel in diesem Heft
- Frontmatter
- Material properties
- Synthesis, characterization and low energy photon attenuation studies of bone tissue substitutes
- The effect of oxygen plasma pretreatment on the properties of mussel-inspired polydopamine-decorated polyurethane nanofibers
- Effects of selected bleaching agents on the functional and structural properties of orange albedo starch-based bioplastics
- Study on the thermal and structural properties of gamma-irradiated polyethylene terephthalate fibers
- Preparation and assembly
- Stereocomplex electrospun fibers from high molecular weight of poly(L-lactic acid) and poly(D-lactic acid)
- Dual-wavelength fluorescent anti-counterfeiting fibers with skin-core structure
- Graphene oxide and zinc oxide decorated chitosan nanocomposite biofilms for packaging applications
- Supramolecular adsorption of cyclodextrin/polyvinyl alcohol film for purification of organic wastewater
- Engineering and processing
- Effects of high-efficiency infrared heating on fiber compatibility and weldline tensile properties of injection-molded long-glass-fiber-reinforced polyamide-66 composites
- Toward the development of polyethylene photocatalytic degradation
