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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/14705
Title: Efficacy of ultra-low loading of amine functionalized graphene oxide into glycidol-terminated polyurethane for high-performance composite material
Authors: Bera M.
Gupta P.
Maji, Pradip K.
Published in: Reactive and Functional Polymers
Abstract: In this work, the effect of amine functionalization of graphene oxide on the physicomechanical properties of glycidol-terminated polyurethane (GPU) nanocomposites was studied. p-phenylenediamine (PPD) functionalized GO (GO-PPD) was used for the fabrication of nanocomposites with GPU by an in-situ polymerization method. Covalent functionalization of GO was confirmed by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Filler content of the nanocomposites was varied from 0.05 wt% to 0.2 wt% and found the best result at 0.10 wt% loading. With the incorporation of just 0.10 wt% GO-PPD, tensile strength of glycidol terminated polyurethane (GPU) was increased by 123%, Young's modulus was found to increase by 158% and elongation at break was increased by 27%. The maximum improvement in thermal stability as observed from thermogravimetric analysis (TGA) was about 16 °C. The experimental result obtained with 0.10 wt% loading of GO-PPD was compared with the same loading of GO and found that GO-PPD provides better improvement in both the thermal and mechanical properties of GPU compared to GO at the similar loading. Ultra-low loading of modified GO has a tremendous influence in physicomechanical properties of polyurethane nanocomposites. Structure-morphology relationship was established through field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). © 2019 Elsevier B.V.
Citation: Reactive and Functional Polymers (2019), 139(): 60-74
URI: https://doi.org/10.1016/j.reactfunctpolym.2019.03.008
http://repository.iitr.ac.in/handle/123456789/14705
Issue Date: 2019
Publisher: Elsevier B.V.
Keywords: Glycidol terminated polyurethane (GPU)
p-phenylenediamine modified graphene oxide (GO-PPD)
Thermal and mechanical properties
ISSN: 13815148
Author Scopus IDs: 57193335800
57209615371
56249287900
Author Affiliations: Bera, M., Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, UP 247001, India
Gupta, P., 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 fanatical support to Dr. Madhab Bera for his fellowship from Ministry of Human Resource Development (MHRD), India is gratefully acknowledged.
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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