Physical, Mechanical, and Degradability Properties of Chemically Treated Jute Fiber Reinforced Biodegradable Nanocomposites

Author(s):  
M. K. Hossain ◽  
M. W. Dewan ◽  
M. V. Hosur ◽  
S. Jeelani

Biodegradable composites were fabricated using chemically treated woven jute fiber, a biodegradable polymer (biopol), and 2–4 wt. % montmorillonite K10 nanoclay by compression molding process. Physical, mechanical, and biodegradability properties of these composites were evaluated in this study. Morphology of modified surfaces of jute fabrics examined using scanning electron microscopy and Fourier transform infrared spectroscopy revealed improved surfaces for better adhesion with matrix. Nanoclay infused samples demonstrated lower moisture and water absorption compared with treated jute fiber biopol composites and untreated jute fiber biopol composites. The effect of moisture absorption on flexural properties and degradability on the dynamic mechanical properties was also studied. Flexural properties were found to degrade with moisture absorption, and the percentage reduction was lower in nanoclay infused samples compared with samples without nanoclay. Storage modulus decreased with biodegradation and rate of decrease was lower in nanoclay infused specimens.

2021 ◽  
Vol 8 (5) ◽  
pp. 11-17
Author(s):  
Syed Rashedul Islam ◽  
Abeer Alassod ◽  
Mohammed Kayes Patoary ◽  
Tayyab Naveed ◽  
Md Arshad Ali ◽  
...  

In recent years, reinforced composites from biodegradable and natural fibers have a worldwide scope for advanced applications. However, the core limitation of natural fiber reinforced composites are poor consistency among supporting fibers and the matrix. Therefore, optimal structural performance of fibers and matrix is desirable. In this study, chemical treatments (i.e., alkali pretreatment, acid pretreatment, and scouring) were applied to jute fibers for improvement of composite properties. Thermal, thermo-mechanical, and flexural properties, and surface morphology, of untreated and treated jute fibers were studied on the treated fibers. Jute fiber/epoxy composite properties were analyzed by thermogravimetric analysis (TGA), flexural strength and modulus, and dynamic mechanical analysis (DMA). The chemical treatments had a significant impact on the properties of jute fiber composites.


2019 ◽  
pp. 1-13 ◽  
Author(s):  
Subrata Ghosh ◽  
Shraddha Singh ◽  
Subhankar Maity

2017 ◽  
Vol 51 (28) ◽  
pp. 3909-3922 ◽  
Author(s):  
Priyadarshi Tapas Ranjan Swain ◽  
Sandhyarani Biswas

The present paper discovers the effect of ceramic filler inclusion on physico-mechanical and water absorption behaviour of untreated and chemically treated (alkali and benzoyl chloride treated) bi-directional jute natural-fiber-reinforced epoxy composites. In practice, the major drawbacks of using natural fibers are their high degree of moisture absorption and poor dimensional stability. Currently, chemical treatments are able to induce fiber modifications that increase their resistance when utilized in composite products. Jute fibers were subjected to various chemical modifications to improve the interfacial bonding with the matrix. In this study, an analysis has been carried out to make pre-treated jute fiber (10, 20, 30 and 40 wt.%) and different filler content (5 and 10 wt.%) with epoxy-based composites. A comparative study of all the untreated jute/aluminium oxide based hybrid composites with chemically treated jute/aluminium oxide based hybrid composites was carried out. The investigational result reveals that chemically treated composites considerably improved the mechanical properties of the composite. The maximum water absorption resistance and strength properties were found with benzoyl chloride-treated fiber-reinforced composite. Lastly, the surface morphology of fractured surfaces after tensile and flexural testing is studied using scanning electron microscope.


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