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Hybrid micro-composite sheets of Polylactic Acid (PLA)/Carbon Black (CB)/natural kenaf fiber processed by calendering method.
- Source :
-
Journal of Polymer Research . Sep2022, Vol. 29 Issue 9, p1-17. 17p. - Publication Year :
- 2022
-
Abstract
- Bio-composites filled with natural and bio-fibers can lead to novel green products. However, in terms of processing, there still exist serious challenges in the development of bi-based parts with respect to the materials selection and limitations associated with the fabrication route. Further issues rise when a uniform and homogenous blending of bio-based constituents is required. This study examines the feasibility of two roller mixer method (calendering) in the sheet fabrication of natural kenaf fiber/carbon black (CB) reinforced polylactic acid (PLA) on the basis of melt mixing. To do this, composites of 20 wt% kenaf, based on an optimized filler content, were reinforced with 0–10 wt% of CB to enhance the processability and to evaluate the synergistic effect of CB on kenaf/PLA parts. The results showed a 75% increase in the modulus of the pure PLA filled with 20 wt% kenaf whilst representing the greatest tensile strength amongst kenaf/PLA specimens. Specimens reinforced with 5 and 10 wt% of CB exhibited enhancement in the elongation at break with respect to the reference neat kenaf/PLA composites, which was attributed to the lowered crystallites size and softer interfacial interphase. However, with the addition of only 5 wt% of CB, the tensile modulus and the crystallization improved by ~ 50% compared to that represented by neat kenaf/PLA parts. The microstructural images confirmed the aligned kenaf phase, dispersion state and interfacial bonding of the CB/kenaf/PLA specimens in correlation with the thermal and mechanical response of the specimens. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYLACTIC acid
*KENAF
*INTERFACIAL bonding
*CARBON-black
*FIBERS
*GREEN products
Subjects
Details
- Language :
- English
- ISSN :
- 10229760
- Volume :
- 29
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Polymer Research
- Publication Type :
- Academic Journal
- Accession number :
- 159162178
- Full Text :
- https://doi.org/10.1007/s10965-022-03245-6