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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14698
Title: Effect of structural disparity of graphene-based materials on thermo-mechanical and surface properties of thermoplastic polyurethane nanocomposites
Authors: Bera M.
Maji, Pradip K.
Published in: Polymer
Abstract: Nanocomposites based on thermoplastic polyurethane (TPU) and graphene-based materials such as graphene oxide (GO) and reduced graphene oxide (RGO) was synthesized by in-situ solution polymerization technique. The effect of structural differences between GO and RGO in the thermo-mechanical and surface properties of TPU at ultralow concentration was the foremost aspiration of this work. TPU/GO nanocomposites exhibited superior mechanical properties compared to TPU/RGO nanocomposites at very low loading. With the incorporation of 0.10 wt% of GO, the resultant nanocomposite showed 280% increase in tensile strength and 410% increase in toughness. Interestingly, the elongation at break nanocomposite increased from 588% for pristine TPU to 1006% for TPU/GO-0.10. Property improvement of RGO filled nanocomposite was not so prominent as compared to GO filled nanocomposites. Thermal stability of the nanocomposites as examined by thermogravimetric analysis (TGA) depicted a 12 °C increase in thermal stability for 0.2 wt% GO filled nanocomposite whereas the same for RGO filled nanocomposite was only 6 °C. Contact angle study revealed that the RGO filled nanocomposites were becoming more hydrophobic whereas GO filled nanocomposites films showed the opposite trend. © 2017 Elsevier Ltd
Citation: Polymer (2017), 119(): 118-133
URI: https://doi.org/10.1016/j.polymer.2017.05.019
http://repository.iitr.ac.in/handle/123456789/14698
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Graphene oxide (GO)
Reduced graphene oxide (RGO)
Surface properties
Thermo-mechanical properties
Thermoplastic polyurethane (TPU)
ISSN: 323861
Author Scopus IDs: 57193335800
56249287900
Author Affiliations: Bera, M., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, UP 247001, India
Maji, P.K., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, UP 247001, India
Funding Details: The authors gratefully acknowledge the financial support of the Ministry of Human Resource Development (MHRD), Govt. of India. The authors also thankful to all the group members of Advanced Materials Research Laboratory (AMRL), IIT Roorkee for their unconditional support.
Corresponding Author: Maji, P.K.; Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, India; email: pradip.fpt@iitr.ac.in
Appears in Collections:Journal Publications [PE]

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