Water vapour permeability of poly(lactic acid): crystallinity and the tortuous path model

@inproceedings{Duan2014WaterVP,
  title={Water vapour permeability of poly(lactic acid): crystallinity and the tortuous path model},
  author={Zhouyang Duan and Noreen L. Thomas},
  year={2014}
}
The water vapour transmission rates (WVTR) through samples of polylactic acid of different crystallinities have been measured. Three different grades of commercial poly(lactic acid) (PLA) were used with different ratios of L-lactide and D-lactide to give a range of crystallinities from 0% to 50%. Sheets of PLA were prepared by melt compounding followed by compression moulding and annealing at different temperatures and for different times to give the range of crystallinities required… CONTINUE READING