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Thermal, Mechanical and Rheological Behavior of Poly(lactic acid)/Talc Composites

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Abstract

In the present study, influence of talc on thermal, mechanical and rheological behavior of PLA is investigated and the structure–property correlation for the PLA/talc composites is established. Poly(lactic acid)/talc composites are prepared by melt mixing of PLA with talc in twin screw extruder followed by blown film processing. Various characterizations techniques are used to evaluate thermal, morphological, mechanical and rheological behavior of PLA/talc composites and its blown film. DSC analysis showed that degree of crystallinity of PLA/talc composites was higher than that of neat PLA because of nucleating ability of talc. Spherulite morphology of PLA/talc composites showed that talc has increased nucleation density of spherulite having smaller radius than that of neat PLA. Talc is effective in enhancing tensile modulus and storage modulus of PLA due to reinforcing ability of talc particles.

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Acknowledgments

One of the authors, Ms. Shikha Jain acknowledges Council of Scientific and Industrial Research (CSIR), New Delhi, India for providing senior research fellowship (SRF).

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Authors and Affiliations

  1. Centre for Polymer Science and Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India

    Shikha Jain & Anup K. Ghosh

  2. Department of Plant Agriculture, Bioproducts Discovery and Development Centre, University of Guelph, Crop Science Building, Guelph, ON, N1G 2W1, Canada

    Manjusri Misra & Amar K. Mohanty

  3. School of Engineering, University of Guelph, Thornbrough Building, Guelph, ON, N1G 2W1, Canada

    Manjusri Misra & Amar K. Mohanty

Authors
  1. Shikha Jain
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  2. Manjusri Misra
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  3. Amar K. Mohanty
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  4. Anup K. Ghosh
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Correspondence to Anup K. Ghosh.

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Jain, S., Misra, M., Mohanty, A.K. et al. Thermal, Mechanical and Rheological Behavior of Poly(lactic acid)/Talc Composites. J Polym Environ 20, 1027–1037 (2012). https://doi.org/10.1007/s10924-012-0500-z

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  • DOI: https://doi.org/10.1007/s10924-012-0500-z

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