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Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid

Global awareness of material sustainability has increased the demand for biobased polymers such as poly (lactic acid) (PLA). PLA is seen as a desirable alternative to fossil-based polymers because it has less impact to the environment. PLA is a preferable material used for packaging, mainly for the...

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Main Author: Rashid, Azrul Fadhli
Format: Student Project
Language:English
Published: 2020
Subjects:
Industrial research. Research and development
Polylactic acid
Online Access:http://ir.uitm.edu.my/id/eprint/37695/1/37695.pdf
http://ir.uitm.edu.my/id/eprint/37695/
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spelling my.uitm.ir.376952020-12-10T00:09:57Z http://ir.uitm.edu.my/id/eprint/37695/ Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid Rashid, Azrul Fadhli Industrial research. Research and development Polylactic acid Global awareness of material sustainability has increased the demand for biobased polymers such as poly (lactic acid) (PLA). PLA is seen as a desirable alternative to fossil-based polymers because it has less impact to the environment. PLA is a preferable material used for packaging, mainly for the food since the material is non-toxicity and exhibited desired properties. The rapid growth in the consumption of PLA leads to the generation of huge amounts of residues of PLA, which at present are mostly processed through landfill and composting. Although it has been observed that PLA grades intended for food packaging degrade at a slow rate under ordinary conditions. In addition, high brittleness of PLA has limited it application. To overcome this, addition of appropriate filler in a PLA matrix could enhance the weaknesses of PLA properties. In this work, virgin and recycled PLA blend with natural eggshell (ES) filler to evaluate the biodegradability behaviour of PLA. The virgin and recycled PLA/eggshell composite prepared using solvent casting method. The amount of eggshell filler is varying in the range of 0 wt% to 20wt% in 5wt% incremental. The PLA are dissolved in dichloromethane solution and added with the eggshell filler at various weight percentages. The amount of eggshell filler is in the range of 0 wt% to 20wt% with 5wt% incremental for each composition. The solution is then cast in glass mold and dry at room temperature. The samples are then subjected to two extreme environments; buried in organic soil and open environment under direct sun light. The results show that the maximum tensile strength is observed at the composition of 95wt% VPLA/5wt% ES and declined with further increment of wt% of ES filler. The findings also revealed that virgin and recycled PLA/ES composite exhibited different pattern of degradable behaviour as the wt% of ES filler increases. The degradation rate in buried soil is higher than degradation rate in open environment. Similarly, recycled PLA/eggshell composite have higher degradation rate as compared to virgin PLA/eggshell composite. 2020-07 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/37695/1/37695.pdf Rashid, Azrul Fadhli (2020) Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid. [Student Project] (Unpublished)
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Industrial research. Research and development
Polylactic acid
spellingShingle Industrial research. Research and development
Polylactic acid
Rashid, Azrul Fadhli
Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid
description Global awareness of material sustainability has increased the demand for biobased polymers such as poly (lactic acid) (PLA). PLA is seen as a desirable alternative to fossil-based polymers because it has less impact to the environment. PLA is a preferable material used for packaging, mainly for the food since the material is non-toxicity and exhibited desired properties. The rapid growth in the consumption of PLA leads to the generation of huge amounts of residues of PLA, which at present are mostly processed through landfill and composting. Although it has been observed that PLA grades intended for food packaging degrade at a slow rate under ordinary conditions. In addition, high brittleness of PLA has limited it application. To overcome this, addition of appropriate filler in a PLA matrix could enhance the weaknesses of PLA properties. In this work, virgin and recycled PLA blend with natural eggshell (ES) filler to evaluate the biodegradability behaviour of PLA. The virgin and recycled PLA/eggshell composite prepared using solvent casting method. The amount of eggshell filler is varying in the range of 0 wt% to 20wt% in 5wt% incremental. The PLA are dissolved in dichloromethane solution and added with the eggshell filler at various weight percentages. The amount of eggshell filler is in the range of 0 wt% to 20wt% with 5wt% incremental for each composition. The solution is then cast in glass mold and dry at room temperature. The samples are then subjected to two extreme environments; buried in organic soil and open environment under direct sun light. The results show that the maximum tensile strength is observed at the composition of 95wt% VPLA/5wt% ES and declined with further increment of wt% of ES filler. The findings also revealed that virgin and recycled PLA/ES composite exhibited different pattern of degradable behaviour as the wt% of ES filler increases. The degradation rate in buried soil is higher than degradation rate in open environment. Similarly, recycled PLA/eggshell composite have higher degradation rate as compared to virgin PLA/eggshell composite.
format Student Project
author Rashid, Azrul Fadhli
author_facet Rashid, Azrul Fadhli
author_sort Rashid, Azrul Fadhli
title Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid
title_short Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid
title_full Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid
title_fullStr Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid
title_full_unstemmed Biodegradability study of PLA/egg shell composite in buried soil and open environment / Azrul Fadhli Rashid
title_sort biodegradability study of pla/egg shell composite in buried soil and open environment / azrul fadhli rashid
publishDate 2020
url http://ir.uitm.edu.my/id/eprint/37695/1/37695.pdf
http://ir.uitm.edu.my/id/eprint/37695/
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score 13.211869

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