Journal of Materials Science

, Volume 45, Issue 4, pp 1078–1085 | Cite as

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

  • M. Kannan
  • S. S. Bhagawan
  • Tomlal Jose
  • Sabu Thomas
  • Kuruvilla JosephEmail author


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
    Email author
  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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