Paper Title:
Preparation of Biodegradable Materials by Reactive Extrusion
  Abstract

This work aimed to prepare biodegradable polymeric materials based on blends of a synthetic high density polyethylene (HDPE) and biodegradable polymers such as polylactic acid (PCL) and poly(caprolactone) (PLA), in a co-rotating twin-screw extruder. A polyethylene modified with maleic anhydride was used as compatibiliser. The mechanical results showed that the addition of PLA improves the blends stiffness while the addition of PCL leads to materials with a greater elongation at break and a lower Young modulus. This feature is related with the mechanical properties of each material as well as the adhesion between them. Concerning the biodegradability tests, it was found that HDPE/PCL blend presents the highest degree of biodegradability.

  Info
Periodical
Materials Science Forum (Volumes 587-588)
Edited by
António Torres Marques, António Fernando Silva, António Paulo Monteiro Baptista, Carlos Sá, Fernando Jorge Lino Alves, Luís Filipe Malheiros and Manuel Vieira
Pages
520-524
DOI
10.4028/www.scientific.net/MSF.587-588.520
Citation
I. Moura, A. V. Machado, F. M. Duarte, G. Botelho, R. Nogueira, "Preparation of Biodegradable Materials by Reactive Extrusion", Materials Science Forum, Vols. 587-588, pp. 520-524, 2008
Online since
June 2008
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Price
$32.00
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