Improvement of Mechanical and Thermal Properties of Polyethylene Terephthalate (PET) Composite Reinforced with Chemically Treated Ladies Finger Natural Fiber

In the present work, ladies finger (LF) fiber has been utilized as reinforcement in thermoplastic polymer, polyethylene terephthalate (PET). The extracted fibers were chemically treated, and the effect of chemical treatment of fibers on mechanical and thermal properties of composites was investigate...

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Bibliographic Details
Published in:Journal of natural fibers 2022-12, Vol.19 (13), p.6841-6852
Main Authors: Nayak, Subhakanta, Jena, Pradeep Kumar, Samal, Priyaranjan, Sahoo, Sabitarani, Khuntia, Sujit Kumar, Behera, Jyoti Ranjan
Format: Article
Language:English
Subjects:
Chemical treatment
Fiber composites
Fiber-matrix adhesion
Fibers
Fourier analysis
Fourier transform infrared spectroscopy (FTIR)
Fourier transforms
Fourier transforms infrared spectroscopy (FTIR): 傅里叶变换红外光谱（FTIR）
Infrared analysis
Infrared spectroscopy
Ladies finger fiber
Ladies finger fiber: 女士手指纤维
Mechanical properties
Packaging
Polyethylene terephthalate
polyethylene terephthalate (PET)
polyethylene terephthalate (PET): 聚对苯二甲酸乙二酯（PET）
Polymers
Scanning electron microscopy
scanning electron microscopy (SEM)
scanning electron microscopy (SEM) 扫描电子显微镜（SEM）
Sodium hydroxide
thermal gravimetric analysis (TGA)
thermal gravimetric analysis (TGA): 热重分析（TGA）
Thermal properties
Thermodynamic properties
Thermogravimetric analysis
X-ray diffraction
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Summary:In the present work, ladies finger (LF) fiber has been utilized as reinforcement in thermoplastic polymer, polyethylene terephthalate (PET). The extracted fibers were chemically treated, and the effect of chemical treatment of fibers on mechanical and thermal properties of composites was investigated and discussed. For this purpose, the fibers were treated with chemicals like sodium hydroxide at various concentrations (2%, 3%, 4%, and 5%). Then, the chemically treated fibers with varying weight percentage (0, 10, 20, 30, and 40 wt%) were reinforced in PET to develop new composites, and its various properties like mechanical properties, thermogravimetric analysis, Fourier transform infrared spectroscopy, and X-ray diffraction were thoroughly investigated and compared with untreated fiber composites and neat PET. It has been observed that the composites fabricated with treated LF fibers reveal improved properties as compared to composites containing untreated fibers. Moreover, a better fiber-matrix bonding is also observed in scanning electron microscopy images.  Twentywt% of fiber loading reveals highest mechanical properties as compared to other fabricated composites and can be suitable for packaging applications.
ISSN:1544-0478
1544-046X
DOI:10.1080/15440478.2021.1932680