Permeability of Polylactic Acid

The gas permeation properties of PLA are important when considering it as a packaging material. Packaging requires low permeability materials, to avoid the loss of flavor, aroma or the [Pg.164]

Lehermeier et al. (2001) conducted a study on the gas permeation of PLA for nitrogen, oxygen, earbon dioxide and methane. The results are summarized in Table 4.7. The activation energy of permeation E can be calculated as follows [Pg.166]

2EB = 2-ethyl-1-butanol DAL = diacetone alcohol DBU = 1,3-dimethyl-1-butanol ELA = ethyl lactate BLA= n-butyl lactate [Pg.167]

EME = ethylene glycol monoethyl ether DGM = diethylene glycol monoethyl etheimethyl DGE = diethylene glycol monoethyl ether EGB = ethylene glycol mono-n-butyl ether 2EH = 2-ethyl-1-hexanol lOL = 1-octanol 20L = 2-octanol DGN = diethylene glycol mono n-butyl ether IDE = 1-decanol TDA = 1-tridecanol NON = nonyl OA9 = oleyl alcohol (adapted from Auras, 2007). [Pg.167]

PHBV = poly((3-hydroxybutyrate-co-hydroxyvalerate) with 6, 12 and 18% valerate PLA-cystalline = PLA annealed at 130°C PCL = poly(e-caprolactone) [Pg.170]

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