Biodegradability study of PLA / Pandanus Amaryllifolius composite in buried soil and open-air environment / Nawwar Khalisa Mohd Yosli

Mohd Yosli, Nawwar Khalisa (2020) Biodegradability study of PLA / Pandanus Amaryllifolius composite in buried soil and open-air environment / Nawwar Khalisa Mohd Yosli. [Student Project] (Unpublished)

Abstract

PLA stands for Polylactic Acid, which is a type of biodegradable plastic mainly used for packaging such as plastic films and food container. It is a natural polymer designed to substitute the widely used petroleum-based plastic. PLA usually takes around 3 to 12 months to degrade and it is one of plastic with the shortest degradable periods. Even though the PLA degradability could be considered faster when compared to other petroleum-based plastics, however, if compared to the rate of plastic wastes produced, the plastic waste management is still unresolved. In this study, the degradation of virgin PLA/Pandanus Amaryllifolius composite and recycled PLA/Pandanus Amaryllifolius composites are investigated. PLA/Pandanus Amaryllifolius composite had been prepared using solvent casting method. For both virgin PLA/Pandanus Amaryllifolius composite and recycled PLA/Pandanus Amaryllifolius composite, the filler composition varies at 5wt%, 10wt% 15wt% and 20wt%. The samples were than exposed to two different environment which were in buried soil and open-air environment, under direct sunlight for 6 weeks. The weight loss is measured and degradation rate were than analyzed. The results show that by increasing the wt% of Pandanus Amaryllifolius in PLA matrix has increases the degradation rate. The degradation rate of PLA/Pandanus Amaryllifolius composite in buried soil is much accelerated as compared to degradation rate in open environment. The results also revealed that degradation rate of virgin PLA/Pandanus Amaryllifolius composite is higher than recycled PLA/Pandanus Amaryllifolius composite in both exposure environment. The finding remarks the potential of Pandanus Amaryllifolius as optimistic alternative filler in PLA biocomposite.

Metadata

Item Type: Student Project
Creators:
Creators
Email / ID Num.
Mohd Yosli, Nawwar Khalisa
2016666058
Contributors:
Contribution
Name
Email / ID Num.
Thesis advisor
Budin, Salina
UNSPECIFIED
Subjects: T Technology > TD Environmental technology. Sanitary engineering > Environmental protection
T Technology > TD Environmental technology. Sanitary engineering > Refuse and refuse disposal
T Technology > TD Environmental technology. Sanitary engineering > Refuse and refuse disposal > Compost. Composting
Divisions: Universiti Teknologi MARA, Pulau Pinang > Permatang Pauh Campus > Faculty of Mechanical Engineering
Programme: Bachelor Of Mechanical Engineering (Manufacturing) (Hons.)
Keywords: Polylactic Acid (PLA), Petroleum-based Plastic, Degradability
Date: July 2020
URI: https://ir.uitm.edu.my/id/eprint/37785
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