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Development of biodegradable packaging materials using Polylactic acid (PLA) and locally extracted starch

Show simple item record Kaushalya, RANC Dhanushka, MKDT Samarasekara, AMPB Weragoda, VSC 2019-10-22T05:12:41Z 2019-10-22T05:12:41Z
dc.description.abstract The main objective of this research is to develop a biodegradable packaging material based on Polylactic Acid (PLA) and locally extracted starch. PLA is a biodegradable and bioactive polymer derived from renewable resources. Starch is a biodegradable polymer that can be extracted from different types of plant-based materials such as cassava tubers. Starch was extracted from cassava tubers by crushing, blending and sedimentation processes. The extracted product was characterized by Fourier Transform Infrared Spectroscopic technique (FTIR). Experimental results indicated that 25 wt. % of starch could be extracted from the cassava that was tested. Biodegradable PLA and starch-based blends were prepared by adding starch as the main additive. Soil burial test was performed to analyze the biodegradability of the developed product. Weight loss in starch containing samples gradually increased with time during the soil burial test. Experimental results also indicated that biodegradability of the products increased as the starch content is increased. The mechanical properties such as tensile strength and elongation also decreased as the starch content increased. These results indicated that the addition of starch to PLA is a better method to increase the biodegradability of the PLA –starch blends. en_US
dc.language.iso en en_US
dc.subject Biodegradable en_US
dc.subject PLA en_US
dc.subject Starch en_US
dc.subject Packaging material en_US
dc.subject Cassava en_US
dc.title Development of biodegradable packaging materials using Polylactic acid (PLA) and locally extracted starch en_US
dc.type Conference-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Materials Science and Engineering en_US
dc.identifier.year 2019 en_US
dc.identifier.conference Moratuwa Engineering Research Conference - MERCon 2019 en_US Moraruwa, Sri Lanka en_US

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