Please use this identifier to cite or link to this item: https://hdl.handle.net/1822/26826

TitleDurability of PCL nanocomposites under different environments
Author(s)Lima, A. Delgado
Botelho, Gabriela
Silva, Maria Manuela
Machado, A. V.
KeywordsPoly(e-caprolactone)
Nanocomposites
Photodegradation
Biodegradation
Activation energy
Poly(epsilon-caprolactone)
Poly(ε-caprolactone)
Issue date2013
PublisherSpringer
JournalJournal of Polymers and the Environment
Abstract(s)The stability of PCL/TiO2 nanocomposites under different environments was investigated. Samples were exposed to UV radiation in an accelerated weathering chamber equipment and characterized by viscosimetry and differential scanning calorimetry. The results showed that the presence of nanoparticles containing titanium enhanced polymer chain scission during UV exposure. For all samples, the melting temperature and crystallinity increased along photodegradation time. The biodegradability, assessed by biochemical oxygen demand, increased as the amount of inorganic particles increased. However, the thermal stability and activation energy evaluated by thermogravimetric analysis decreased as the amount of inorganic nanoparticles increased, indicating that nanocomposites exhibited lower thermal stability.
TypeArticle
URIhttps://hdl.handle.net/1822/26826
DOI10.1007/s10924-013-0585-z
ISSN1566-2543
1572-8900
Publisher versionThe original publication is available at www.springerlink.com
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:IPC - Artigos em revistas científicas internacionais com arbitragem

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