Blends of starch with ethylene vinyl alcohol copolymers: effect of water, glycerol, and amino acids as plasticizers

@inproceedings{Orts2007BlendsOS,
  title={Blends of starch with ethylene vinyl alcohol copolymers: effect of water, glycerol, and amino acids as plasticizers},
  author={William J. Orts and Geoffrey A. R. Nobes and Gregory M. Glenn and Gregory M. Gray and Syed Haider Imam and Bor-sen Chiou},
  year={2007}
}
Blends of thermoplastic starch with poly(ethylene-co-vinyl alcohol) copolymer (EVOH) were melt extruded with water/glycerol as plasticizer and a series of amino acid additives. The biggest factor in end-use mechanical properties proved to be the relative humidity (RH) during storage. Plasticized starch-EVOH blends stored at 0 and 50% RH changed significantly over time, with, for example, the tensile strength (TS) of the glycerol-plasticized blend increasing from 4.7 to 26.3 MPa over 8 weeks… CONTINUE READING