Biodegradability analysis of KBF reinforced poly(lactic acid) biocomposites

Poly(lactic acid) (PLA) and kenaf bast fiber (KBF) were melt-blended using brabender into films in the PLA/KBF ratios of 100/0, 90/10, 70/30 and 50/50 for natural soil burial test. This formulation was used to study the biodegradability of PLA and PLA/KBF biocomposites. It was found that the decompo...

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Bibliographic Details
Main Authors: Othman, Maizatulnisa, Ibrahim, Nor Azowa, Ruzaidi, Che Mohd, Mohd Nazarudin, Zakaria, Halim, Zahurin
Format: Article
Language:English
English
Published: Trans Tech Publications, Switzerland 2012
Subjects:
Online Access:http://irep.iium.edu.my/28858/
http://irep.iium.edu.my/28858/
http://irep.iium.edu.my/28858/
http://irep.iium.edu.my/28858/1/Biodegradability_Analysis_of_KBF_Reinforced_Poly%28lactic_Acid%29_Biocomposites.pdf
http://irep.iium.edu.my/28858/4/28858_Biodegradability%20analysis%20of%20KBF%20reinforced_SCOPUS.pdf
Description
Summary:Poly(lactic acid) (PLA) and kenaf bast fiber (KBF) were melt-blended using brabender into films in the PLA/KBF ratios of 100/0, 90/10, 70/30 and 50/50 for natural soil burial test. This formulation was used to study the biodegradability of PLA and PLA/KBF biocomposites. It was found that the decompositions of the biocomposite were faster than pure PLA. The SEM morphology of the tensile fracture surface of the 30% and 50% of PLA/KBF biocomposites presented larger pores and degradation areas than smaller KBF loading (10 wt%). This result shows that the addition of larger fibre loading to the PLA matrix increased the micropore surface area of the PLA/KBF biocomposite hence accelerated the decompositions time of the biocomposites.