Characterization and properties of layered silicate reinforced Spent DuraForm EX nanocomposites

Hom Nath Dhakal, Barjas Aldousiri, Zhong Zhang, Mohammad Al Hubail, Nicholas George Bennett

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    During the last decade, the nanocomposites based on layered silicate are widely studied and attracted the industrial and academic research. The effect of various loading levels of layered silicate reinforcement on the mechanical and thermal properties was studied by nano-indentation, flexural testing, thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The maximum hardness (H), increased from 67 MPa for neat Spent DuraForm EX up to 170 MPa with 7 wt.% layered silicate-reinforced sample. The measured modulus (E), of unreinforced Spent DuraForm increased from 631 MPa to 2100 MPa with 7 wt.% layered silicate reinforcement. The thermal property of the EX nanocomposites revealed by DSC was improved by about 6˚C up to 7 wt.% of layered silicate loading. Different levels of layered silicates dispersion as characterized using TEM and SEM correlated strongly with improvements in nanohardness and thermal properties. The improved hardness, modulus, crystalline and melting temperatures of Spent DuraForm EX nanocomposites are attributed mainly to the intercalated structures.
    Original languageEnglish
    Pages (from-to)484-493
    JournalPolymer-Plastics Technology and Engineering
    Issue number5
    Early online date26 Feb 2015
    Publication statusPublished - Apr 2015


    • Nanocomposites
    • Polymers
    • Nanohardness
    • Transmission electron microscope (TEM)


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