The TGA curves of all individual WPC components determined
with method no. 2 are shown in Fig. 4. It can be seen that the thermal
degradation of MAPP and wax is more similar to the TGA and
SDTA curves of PP-copolymer than to the TGA curve of wood flour.
Consequently,the MAPP and wax curves were assigned to the polymer
fraction because step separation for the additives used is not
possible in the TGA curves.