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

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Abstract

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.

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Authors and Affiliations

  1. Department of Polymer Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, 641105, India

    M. Kannan & S. S. Bhagawan

  2. Department of Chemistry, SB College, Changanachery, 686101, Kerala, India

    Tomlal Jose

  3. School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 686560, India

    Sabu Thomas

  4. Department of Chemistry, Indian Institute of Space Science and Technology, Thiruvananthapuram, 695022, Kerala, India

    Kuruvilla Joseph

Authors
  1. M. Kannan
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  2. S. S. Bhagawan
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  3. Tomlal Jose
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  4. Sabu Thomas
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  5. Kuruvilla Joseph
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Corresponding author

Correspondence to Kuruvilla Joseph.

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Kannan, M., Bhagawan, S.S., Jose, T. et al. Effect of sequence of nanoclay addition in TPU/PP blends: thermomechanical properties. J Mater Sci 45, 1078–1085 (2010). https://doi.org/10.1007/s10853-009-4046-y

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  • DOI: https://doi.org/10.1007/s10853-009-4046-y

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