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Polymer Bulletin
Erschienen in: Polymer Bulletin 5/2014

01.05.2014 | Original Paper

Structural stability of photodegradable poly(l-lactic acid)/PE/TiO2 nanocomposites through TiO2 nanospheres and TiO2 nanotubes incorporation

verfasst von: Kacris Idianês Matos da Silva, Jesum Alves Fernandes, Emerson Cristofer Kohlrausch, Jairton Dupont, Marcos José Leite Santos, Marcelo Priebe Gil

Erschienen in: Polymer Bulletin | Ausgabe 5/2014

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Abstract

Photodegradation of PLA/PE, PLA/PE/TiO2 nanospheres and PLA/PE/TiO2 nanotubes was obtained under simulated sunlight. The nanocomposites were analyzed by infrared spectroscopy, scanning electron microscopy and tensile-deformation measurements. TiO2 nanospheres and TiO2 nanotubes were found to present different effects on the crystallinity of PLA and a straight correlation between structural organization and photostability was observed. According to the results, TiO2 promotes the degradation of PLA and PE, affecting the organizational level of the polymers. By adding TiO2 nanoparticles to the PLA/PE films, vibration modes characteristic of degradation products were promptly observed and the lifetime of the polymer decreased when compared to the PLA/PE without TiO2 nanoparticles. Mechanical measurements showed an improvement of the mechanical properties when adding the TiO2 nanoparticles.
Vorheriger Artikel Flow-induced crystallization in polymer melts: how Winter’s gelation concept fits into the picture
Nächster Artikel Fabrication of strong and thermally more stable jute fabric/polypropylene composites by compression molding along with γ-ray irradiation

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Metadaten
Titel
Structural stability of photodegradable poly(l-lactic acid)/PE/TiO2 nanocomposites through TiO2 nanospheres and TiO2 nanotubes incorporation
verfasst von
Kacris Idianês Matos da Silva
Jesum Alves Fernandes
Emerson Cristofer Kohlrausch
Jairton Dupont
Marcos José Leite Santos
Marcelo Priebe Gil
Publikationsdatum
01.05.2014
Verlag
Springer Berlin Heidelberg
Erschienen in
Polymer Bulletin / Ausgabe 5/2014
Print ISSN: 0170-0839
Elektronische ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-014-1119-0

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