Development of biodegradable flexible films of starch and poly(lactic acid) plasticized with adipate or citrate esters

Carbohydr Polym. 2013 Jan 30;92(1):19-22. doi: 10.1016/j.carbpol.2012.09.038. Epub 2012 Sep 28.

Abstract

Biodegradable films were produced from blends contained a high amount of thermoplastic starch (TPS) and poly(lactic acid) (PLA) plasticized with different adipate or citrate esters. It was not possible to obtain pellets for the production of films using only glycerol as a plasticizer. The plasticization of the PLA with the esters and mixture stages added through extrusion was critical to achieve a blend capable of producing films by blow extrusion. Adipate esters were the most effective plasticizers because they interacted best with the PLA and yielded films with appropriate mechanical properties.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adipates / chemistry
  • Biodegradation, Environmental
  • Citric Acid* / chemical synthesis
  • Citric Acid* / chemistry
  • Esters* / chemical synthesis
  • Esters* / chemistry
  • Lactic Acid* / chemical synthesis
  • Lactic Acid* / chemistry
  • Plastics
  • Polyesters
  • Polymers* / chemical synthesis
  • Polymers* / chemistry
  • Starch* / chemical synthesis
  • Starch* / chemistry

Substances

  • Adipates
  • Esters
  • Plastics
  • Polyesters
  • Polymers
  • Citric Acid
  • Lactic Acid
  • poly(lactide)
  • adipic acid
  • Starch