Effects of silane surface treatment of cellulose nanocrystals on the tensile properties of cellulose-polyvinyl chloride nanocomposite

Rasha M. Sheltami, Hanieh Kargarzadeh, Ibrahim Abdullah

    Research output: Contribution to journalArticle

    16 Citations (Scopus)

    Abstract

    Cellulose nanocrystals (CNC) from mengkuang leaves (Pandanus tectorius) were investigated as potential reinforcement in poly(vinyl chloride) (PVC) matrix. The surface of CNC was modified with silane coupling agent to improve filler-matrix adhesion. Solution casting method was used to prepare PVC nanocomposites with various amounts of modified (SCNC) and unmodified (CNC) nanocrystals. Both SCNC and CNC were examined by Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) which showed that surface chemical modification has occurred. An increase in tensile strength was observed with the addition of SCNC compared to the CNC. However, the elongation at break of the nanocomposites was found to decrease with the increase of both fillers loading. An increasing trend was observed in the tensile modulus with the addition of CNC to the PVC matrix, but decreasing with the addition of SCNC. The morphology of a fractured surface of nanocomposites showed silane modification reduced the number of voids in the structure of PVC. The observation indicated the adhesion between the fiber and the matrix had improved upon surface modification of the nanocrystals with silane.

    Original languageEnglish
    Pages (from-to)801-810
    Number of pages10
    JournalSains Malaysiana
    Volume44
    Issue number6
    Publication statusPublished - 1 Jun 2015

    Fingerprint

    Silanes
    Tensile properties
    Polyvinyl Chloride
    Cellulose
    Nanocrystals
    Surface treatment
    Nanocomposites
    Fillers
    Adhesion
    Vinyl Chloride
    Coupling agents
    Chemical modification
    Elongation
    Reinforcement
    Casting
    Tensile strength
    Elastic moduli
    X ray diffraction
    Fibers

    Keywords

    • Cellulose nanocrystals
    • Nanocomposite
    • Poly(vinyl chloride)
    • Silane modification

    ASJC Scopus subject areas

    • General

    Cite this

    Effects of silane surface treatment of cellulose nanocrystals on the tensile properties of cellulose-polyvinyl chloride nanocomposite. / Sheltami, Rasha M.; Kargarzadeh, Hanieh; Abdullah, Ibrahim.

    In: Sains Malaysiana, Vol. 44, No. 6, 01.06.2015, p. 801-810.

    Research output: Contribution to journalArticle

    Sheltami, Rasha M. ; Kargarzadeh, Hanieh ; Abdullah, Ibrahim. / Effects of silane surface treatment of cellulose nanocrystals on the tensile properties of cellulose-polyvinyl chloride nanocomposite. In: Sains Malaysiana. 2015 ; Vol. 44, No. 6. pp. 801-810.
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