Abstract:
|
Thermo oxidative degradation at and beyond process-
ing temperatures has been carried out on ABS copoly-
mer grafted with Maleic Anhydride (ABS-
g
-Ma) and
three nanocomposites with the above material
melt-blended with different types of POSS, being
amino-propyl isobutyl (APOSS), glycidyl (GPOSS), and
trisilanol (TPOSS). The incorporation adequacy of the
nanofillers into the matrix has been assessed with
scanning electron microscopy (SEM) and differential
scanning calorimetry (DSC), whereas the quantification
of the thermal degradation behavior of each sample
was carried out through infrared spectrography (FTIR),
thermogravimetric analysis (TGA) including the degra-
dation kinetics and color spectrophotometry (Cielab).
Although the results show adequate incorporation and
miscibility of the nanofillers into the matrix, the GPOSS
and the TPOSS nanocomposites provided no relevant
improvements in thermal stability when compared with
the base ABS-
g
-Ma, and the APOSS blend exhibits a
very slight decay in almost all the quantitative analysis
carried out in this work. |