Synthesis and characterization of linseed vinyl ester fatty amide-modified epoxy layered silicate nanocomposites

Mohandas Mandhakini, Ayyavu Chandramohan, Muthukumarasamy Rangaraju Vengatesan, Muthukaruppan Alagar

    Research output: Contribution to journalArticlepeer-review

    6 Scopus citations

    Abstract

    Bio-based epoxy/clay nanocomposites were prepared by swelling organoclay in an epoxy (DGEBA)/linseed vinyl ester fatty amide (LVEFA), followed by curing with an aromatic hardener, 4,4′-diaminodiphenylmethane (DDM). The X-ray diffraction showed the existence of intercalated clay in the polymer matrix. Differential scanning calorimetry (DSC) indicated a gradual increase in the glass transition temperature as the organoclay loading increased. The tensile strength, flexural strength and impact strength of 20 wt.% linseed vinyl ester-modified epoxy composites significantly increased by 23.65, 13.19 and 40.7%, respectively, with increasing organoclay concentration. The tensile modulus and flexural moduli were enhanced by 14 and 9.28%, respectively.

    Original languageBritish English
    Pages (from-to)403-412
    Number of pages10
    JournalHigh Performance Polymers
    Volume23
    Issue number5
    DOIs
    StatePublished - Aug 2011

    Keywords

    • bionanocomposites
    • epoxy resin
    • mechanical properties
    • morphology
    • Organic-inorganic hybrid
    • thermal stability

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