Effect of Plasticizer on Oxygen Permeability of Cast Polylactic Acid (PLA) Films Determined Using Dynamic Accumulation Method

Authors

Kurniawan Yuniarto, Bogor Agricultural UniversityFollow
Bruce A. Welt, University of FloridaFollow
ARIS PURWANTO, Bogor Agricultural UniversityFollow
Hadi Karia Purwadaria, Swiss-German UniversityFollow
Ayman Abdellatief, University of FloridaFollow
Titi C. Sunarti, Bogor Agricultural UniversityFollow
Setyo Purwanto, National Nuclear Energy Agency, IndonesiaFollow

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Polylactic acid (PLA) is becoming an increasingly important biopolymer for packaging applications. PLA brittleness limits its applicability. This study evaluated PLA properties with increasing amounts of added polyethylene glycol (PEG) plasticizer. Oxygen transmission rate (OTR) of cast films was determined using the newly available Dynamic Accumulation (DA) method. Arrhenius temperature sensitivity of OTR and polymer Permeability was also determined. Permeability of neat PLA is 4.848 ml mm (STP)/m² s kPa; hence, 4.84 ml mm (STP)/m² s kPa, 4.07 ml mm (STP)/m² s kPa and 5.42 ml mm (STP)/m² s kPa by adding PEG 1 %, 5% and 10% respectively. The main conclusion from this work is increasing PEG will enhance the PLA permeability number but excess PEG in PLA film will decrease the permeability number.

Recommended Citation

Yuniarto, Kurniawan; Welt, Bruce A.; PURWANTO, ARIS; Purwadaria, Hadi Karia; Abdellatief, Ayman; Sunarti, Titi C.; and Purwanto, Setyo (2014) "Effect of Plasticizer on Oxygen Permeability of Cast Polylactic Acid (PLA) Films Determined Using Dynamic Accumulation Method," Journal of Applied Packaging Research: Vol. 6: No. 2, Article 5.
Available at: https://repository.rit.edu/japr/vol6/iss2/5