Effect of small amounts of poly(lactic acid) on the recycling of poly(ethyleneterephtalate) bottles

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Abstract

Poly(ethylene terephthalate) (PET) is one of the most used commodity polymers, especially for food andbeverage applications, and its recycling is of great importance because of the possible use in the textileand construction industries. On the other hand, the interest in biodegradable polymers has led, in recentyears, to the use of materials such as poly(lactic acid) (PLA) also in the food and beverage industry. Thepresence of small amounts of PLA in the PET waste can significantly affect the post-consumer recyclingprocess. In this work, the effect of the presence of small amounts of PLA on the recycling of PET bottles isinvestigated by rheological, mechanical, morphological and thermogravimetric analysis. The resultsindicate that this presence can significantly affect the rheological properties under non-isothermalelongational flow, while the mechanical properties were considerably affected only in some circumstancesand the thermal stability was not significantly modified.
Lingua originaleEnglish
pagine (da-a)21-24
Numero di pagine4
RivistaPolymer Degradation and Stability
Volume97
Stato di pubblicazionePublished - 2012

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Polymers and Plastics
  • Materials Chemistry

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