  Four series of PLA based composite films containing horizontally aligned few
layer graphene (FLG) flakes of high aspect ratio and adsorbed albumin are
prepared. The mechanical and thermal properties vary with percentage,
dispersion degree and size of FLG flakes. Great improvement up to 290 and 360%
of tensile modulus and strength respectively was obtained for the composite
containing high lateral size of FLG at 0.17% wt., and up to 60 and 80% for the
composite with very well dispersed 0.02% wt. FLG. The composites of PLA and
PEG-PLLA containing very well dispersed FLG flakes at 0.07 % wt. are ductile
showing enhancement of elongation at break up to respectively 80 and 88%.
Relatively high electrical conductivity, 5 x 10-3 S/cm, is measured for PLA
film charged with 3% of FLG.
