Biopolymer nanocomposites based on poly(hydroxybutyrate-co-hydroxyvalerate) reinforced by a non-ionic organoclay

Larissa N. Carli*, Tales S. Daitx, Régis Guégan, Marcelo Giovanela, Janaina S. Crespo, Raquel S. Mauler

*この研究の対応する著者

研究成果: Article査読

19 被引用数 (Scopus)

抄録

In this study, a nanocomposite based on a biodegradable polymer poly(hydroxybutyrate-co-hydroxyvalerate) (PHBV) reinforced by triethylene glycol mono-n-decyl ether (C10E3) non-ionic organoclay (C10E3-Mt) was prepared. The morphology and the thermal and mechanical properties of PHBV/C10E3-Mt were compared with those of PHBV nanocomposites prepared using commercial organically modified montmorillonite Cloisite® 30B (OMt) and raw montmorillonite (Mt). Nanocomposites with 3wt% nanoparticles were obtained by melt processing. The high level of dispersion with improved interfacial interactions between OMt and polymer led to an increase in the thermal stability and modulus of PHBV. However, this nanocomposite presented a lower strain before fracture, typical of brittle behavior. The transmission electron microscopy and wide angle X-ray diffraction results revealed a significant increase in the interlayer spacing of clay for the PHBV/C10E3-Mt nanocomposite, which was favored by the wide expansion of the platelets of the starting non-ionic organoclay. This characteristic of C10E3-Mt, together with its hydrophobic behavior, allowed its easy incorporation in the PHBV matrix, thus improving the processing and maintaining a high modulus with increased material toughness.

本文言語English
ページ(範囲)235-241
ページ数7
ジャーナルPolymer International
64
2
DOI
出版ステータスPublished - 2015 2 1

ASJC Scopus subject areas

  • ポリマーおよびプラスチック
  • 有機化学
  • 材料化学

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