Viscoelastic Properties of Mineral-Filled Poly(lactic acid) Composites | Zendy

Adriána Gregorová | Zendy; Michal Machovský | Zendy; Rupert Wimmer | Zendy

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Viscoelastic Properties of Mineral-Filled Poly(lactic acid) Composites

Author(s) -

Adriána Gregorová,

Michal Machovský,

Rupert Wimmer

Publication year - 2012

Publication title -

international journal of polymer science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.399

H-Index - 33

eISSN - 1687-9430

pISSN - 1687-9422

DOI - 10.1155/2012/252981

Subject(s) - materials science , composite material , viscoelasticity , scanning electron microscope , mica , filler (materials) , composite number , adhesion , matrix (chemical analysis) , dynamic mechanical analysis , polymer

Poly(lactic acid) was filled with 20 wt% of the three mineral fillers Mica, Zeolite, and Vansil, differing in the particle shape and surface area. Viscoelastic properties of unfilled and filled composites were investigated via dynamic mechanical analysis, while filler and fracture surface morphology of the composites was analysed through scanning electron microscopy. Results demonstrate the relationships between viscoelastic damping behaviour of filled PLA composites and the filler distribution in the PLA matrix. Both damping reduction and scanning electron microscope analysis revealed that Zeolite was better distributed in the poly(lactic acid) matrix than the other used fillers Mica and Vansil. The interfacial filler/matrix adhesion has again proved to be the key factor determining thermal and mechanical properties of reinforced composite material

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