Rheological and Morphological Properties of TPU/ABS/SiO2 Nanocomposites

Nanocomposites of thermoplastic polyurethane (TPU) and acrylonitrile-butadiene-styrene (ABS) blend with nanosilica (SiO2) are prepared at various loading. Rheological experiments such as strain sweep, frequency sweep are performed to study the influence of nanoparticle loading on the viscoelastic properties of nanocomposites. The test results show that nanocomposites with higher filler loading have higher storage and loss moduli. The higher filler loading leads to the enhancement of nanoparticle surface area so that the viscoelastic properties are intensified through increase of polymer chain adsorption on nanoparticle. The scanning electron microscopy (SEM) graphs revealed that the particle aggregate increase with increasing nanoparticle content

Keywords:

Rheology , morphology , nanocomposites , TPU-ABS , SiO2