Degradation of nanoclay-filled polylactide composites

• Autorzy: Rapacz-Kmita A. , Stodolak-Zych E. , Dudek M. , Szaraniec B. , Rozycka A. , Mosialek M. , Mandecka-Kamien L.
• Języki publikacji: EN

Abstrakty

EN

Nanoclay-filled polylactide (PLA 3051D) composite materials were tested in this study and their capacity for degradation was investigated. Activated and lyophilized smectite clay was used. The filler, its morphology, and grain size distribution were characterized by the use of transmission electron microscopy, scanning electron microscopy, and the dynamic light scattering technique. Samples of pure polylactide and polylactide filled with 3% wt., 5% wt., and 10% wt. of nanoclay in subsequent series were obtained by injection molding. The optimum amount of the filler in the nanocomposites was evalu-ated based on an assessment of mechanical properties as well as capacity to degrade. The 3% wt. mass fraction of nanofiller in the polylactide matrix was found to be the most effective in enhancement of both tensile strength (RM) and Young’s Modulus (E). It was also reported that polylactide nanocomposites filled with 3% wt. of smectite clay were characterized by the highest decrease in molecular mass of the matrix polymer after degradation tests (6 weeks incubation in water at 80°C). The observed decrease in degradation time and the overall changes distinguished in the nanocomposite structure suggest the poten-tial for application of the material in the packaging industry.

Słowa kluczowe

EN

nanocomposite materials; food packaging; polymer; smectite clay

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2013
• Tom: Vol. 49, iss. 1
• Strony: 91--99
• Opis fizyczny: Bibliogr. 21 poz., rys., tab.

Twórcy

autor

Rapacz-Kmita A.

• AGH – University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Cracow, Poland

autor

Stodolak-Zych E.

• AGH – University of Science and Technology, Faculty of Energy and Fuels, Mickiewicza 30, 30-059 Cra-cow, Poland

autor

Dudek M.

• AGH – University of Science and Technology, Faculty of Energy and Fuels, Mickiewicza 30, 30-059 Cra-cow, Poland

autor

Szaraniec B.

• AGH – University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Cracow, Poland

autor

Rozycka A.

• AGH – University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Cracow, Poland,

autor

Mosialek M.

• J. Haber Institute of Catalysis and Surface Chemistry PAS, Niezapominajek 8, 30-239 Cracow, Poland and Institute of Physical Chemistry PAS, Kasprzaka 44/52, 01-224 Warsaw, Poland

autor

Mandecka-Kamien L.

• AGH – University of Science and Technology, Faculty of Materials Science and Ceramics, Mickiewicza 30, 30-059 Cracow, Poland

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