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Nanoclay effect on transport properties of thermoplastic polyurethane/polypropylene (TPU/PP) blends

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Abstract

In this paper the diffusion of water through the nanoclay filled TPU/PP blends was investigated at various temperatures. The effect of blend ratio, compatibilisation and nanoclay addition on the transport properties was studied in detail. Special attention has been given to study the mechanism of diffusion. Thermodynamics and Arrhenius parameters were evaluated from the diffusion data. The various parameters such as diffusion coefficient (D), permeation coefficient (P), sorption coefficients (S) were evaluated at different diffusion conditions. Attempts were made to correlate the observed morphology of the blends with transport properties. Addition of PP into TPU decreases water sorption of the system due to the decrease in overall polarity of the system and further reduced by addition of compatibiliser and nanoclay into the system. Compared to the ether-TPU based blend nanocomposites, the ester-TPU blends show better compatibility as confirmed by analysis.

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Authors and Affiliations

  1. Department of Chemical Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, 641112, India

    Murugasamy Kannan & S. S. Bhagawan

  2. School of Chemical Sciences, Mahatma Gandhi University, Kottayam, 586560, India

    Sabu Thomas

  3. Department of Chemistry, Indian Institute of Space Science and Technology, Thiruvananthapuram, 695 547, India

    Kuruvilla Joseph

Authors
  1. Murugasamy Kannan
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  2. S. S. Bhagawan
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  3. Sabu Thomas
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  4. Kuruvilla Joseph
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Correspondence to Murugasamy Kannan.

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Kannan, M., Bhagawan, S.S., Thomas, S. et al. Nanoclay effect on transport properties of thermoplastic polyurethane/polypropylene (TPU/PP) blends. J Polym Res 20, 201 (2013). https://doi.org/10.1007/s10965-013-0201-x

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  • DOI: https://doi.org/10.1007/s10965-013-0201-x

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