Viscoelastic Properties of Mineral-Filled Poly(lactic acid) Composites
Figure 1
SEM micrographs of mineral fillers (a) Mica (monoclinic, tendency towards pseudohexagonal crystals), (b) Zeolite (silica, and alumina tetrahedrons), (c) Vansil (wollastonite; triclinic, with lamellar, compact, and fibrous aggregates).
