Multi-walled carbon nanotubes (MWCNTs) filler effects on some physical properties of PCL/PMMA blend films

Abstract A PCL/PMMA blend system with low contents of multi-walled carbon nanotubes was prepared using a high prop sonicator with casting techniques. The X-ray analysis revealed that adding MWCNTs to the polymer blend did not affect crystallinity but had little effect on d space. Some changes in the positions of IR bands were observed due to the interaction between MWCNTs and the polymer blend. SEM images revealed that the grain size formed and became a definite shape after adding MWCNTs. Mechanical analysis shows that incorporating MWCNTs in the polymeric matrices improves the mechanical properties of both tensile stress and elastic modulus Differential scanning calorimetry indicates that adding MWCNTs enhances the thermal stability of the prepared nanocomposites. The thermogravimetric analysis (TGA) showed a significant weight loss from 357–440 °C for all the prepared samples.