Publication Type:

Journal Article

Source:

Polymer Engineering and Science, Volume 50, Number 9, p.1878-1886 (2010)

URL:

http://www.scopus.com/inward/record.url?eid=2-s2.0-77957011535&partnerID=40&md5=68ec796b8fcf4522b943e3a858a00b5f

Keywords:

Abrasion resistance, atomic force microscopy, Atomic spectroscopy, Blend system, Blending, Clay minerals, Cloisite, differential scanning calorimetry, Dispersions, Dynamic analysis, Dynamic mechanical analysis, Esterification, Esters, Filled polymers, Fourier transform infrared spectroscopy, Fourier transforms, Grafted polypropylene, Hard segments, Maleic anhydride, Mechanical properties, Melt blending, Nano clays, Nano scale, Nanocomposite blends, Nanocomposites, Nanostructured materials, Organically-modified montmorillonite clays, Polymer blends, Polypropylene blends, Reinforcement, scanning electron microscopy, Silicate minerals, Surface modifiers, Tensile strength, Thermoplastic polyurethanes, Thermoplastics, water absorption, X ray diffraction, X ray diffraction analysis

Abstract:

<p>Ester-based thermoplastic polyurethane (TPU) nanocomposites were prepared by melt blending at 190°C, using 3 wt% Cloisite 10A (organically modified montmorillonite clay) as the nanoscale reinforcement [TPU(C10A)]. The nanocomposites were subsequently melt-blended with polypropylene (PP) using maleic anhydride-grafted polypropylene (MA-g-PP) as a compatibilizer [in the ratio of 70/30-TPU/PP, 70/25/5-TPU/PP/MA-g-PP, 70/25/5-TPU (C10A)/PP/MA-g-PP]. Besides giving substantial increase in modulus, tensile strength, and other properties, organoclay reinforcement functions as a surface modifier for TPU hard segment resulting in improved dispersion. The morphology and other characteristics of the nanocomposite blends were investigated in terms of X-ray diffraction, fourier transform infrared spectroscopy, differential scanning calorimetry, dynamic mechanical analysis, tensile properties, scanning electron microscopy, and atomic force microscopy. The results indicate that the ester-TPU(C10A)/PP/MA-g-PP exhibited better dispersion than other blend systems; abrasion resistance and water absorption resistance were also better for this system. © 2010 Society of Plastics Engineers.</p>

Notes:

cited By (since 1996)6

Cite this Research Publication

M. Kannan, Bhagawan, S. Sa, Jose, Tb, Thomas, Sc, and Joseph, Kd, “Preparation and characterization of nanoclay-filled polyurethane/ polypropylene blends”, Polymer Engineering and Science, vol. 50, pp. 1878-1886, 2010.