Preparation and characterization of thermoplastic polyurethane/organoclay nanocomposites by melt intercalation technique: Effect of nanoclay on morphology, mechanical, thermal, and rheological properties

摘要: Nanocomposites based on thermoplastic polyurethane (TPU) and organically modified montmorillonite (OMMT) were prepared by melt blending. Organically nanoclay was added to the TPU matrix in order study influence of organoclay nanophase morphology materials properties. The interaction between nanofiller studied infrared spectroscopy. Morphological characterization nanocomposites carried out using X-ray diffraction, transmission electron microscopy, scanning microscopy techniques. results showed that mixing is an effective process for dispersing OMMT throughout matrix. exhibit higher mechanical thermal properties than pristine TPU. All these increasing trend with increase content. Thermogravimetric analysis revealed incorporation enhances stability significantly. Differential calorimetry used measure melting point glass transition temperature (Tg) soft segments, which found shift toward inclusion organoclays. From dynamic analysis, it seen addition strongly influenced storage loss modulus Dynamic viscoelastic explored rubber analyzer. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci,