Organo-Montmorillonite Modified Wood Flour/Poly (Lactic Acid) Composites Via Different Modification Process

In this paper, four varieties of wood flour (WF)/poly (lactic acid) (PLA) composites by organo-montmorillonite (OMMT) modification were fabricated via different modification process. The distribution of OMMT was characterized and the mechanical capacities of these composites were tested. After different OMMT-modified process, the mechanical capacities of composites were distinctly different. However, except for the impact strength, almost the whole mechanical capacities showed improvements after modifying by OMMT; composite made of pure PLA and OMMT-modified WF behaved the best mechanical properties, while composite made of pure WF and OMMT-modified PLA behaved the worst; either for PLA modified by OMMT or WF/PLA composites modified by OMMT, the existence of the OMMT aggregates could cause damage to the mechanical properties. However, intercalated OMMT into WF or WF/PLA composite was beneficial to the mechanical properties.