Journal of Materials Science

, 45:1078 | Cite as

Effect of sequence of nanoclay addition in TPU/PP blends: thermomechanical properties

  • M. Kannan
  • S. S. Bhagawan
  • Tomlal Jose
  • Sabu Thomas
  • Kuruvilla Joseph


Nanoclay filled thermoplastic polyurethane (TPU)/polypropylene (PP) blends compatibilized with maleic anhydride grafted polypropylene (MA-g-PP) have been studied with emphasis on sequence of nanoclay addition. In sequence I [TPU(nano)/PP/MA-g-PP], nanoclay was first added to TPU and this nano composite was blended with PP, using MA-g-PP as compatibilizer. In the case of sequence II [TPU/PP(nano)/MA-g-PP], nanoclay was added first to PP and blended with TPU, using MA-g-PP as compatibilizer. These blend systems were evaluated by DSC, FTIR, DMA, SEM, XRD and tensile properties. The results indicated that sequence I imparted greater compatibility to the polymers and better nanoclay dispersion than sequence II. Overall the TPU(nano)/PP/MA-g-PP blend system shows better dispersion than TPU/PP(nano)/MA-g-PP.


Differential Scanning Calorimetry Storage Modulus Maleic Anhydride Hard Segment Soft Segment 
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Copyright information

© Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • M. Kannan
    • 1
  • S. S. Bhagawan
    • 1
  • Tomlal Jose
    • 2
  • Sabu Thomas
    • 3
  • Kuruvilla Joseph
    • 4
  1. 1.Department of Polymer EngineeringAmrita Vishwa VidyapeethamCoimbatoreIndia
  2. 2.Department of ChemistrySB CollegeChanganacheryIndia
  3. 3.School of Chemical SciencesMahatma Gandhi UniversityKottayamIndia
  4. 4.Department of ChemistryIndian Institute of Space Science and TechnologyThiruvananthapuramIndia

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