• microstructural, physico-chemical and mechanical characterisation of sansevieria cylindrica fibres – an exploratory investigation

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 555
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the microstructural, physical, chemical and mechanical properties of sansevieria cylindrica fibres are described for the first time in this work. a microstructural analysis ofs. cylindrica leaves showed the presence of structural fibres and arch fibres. polarised light microscopy and scanning electron microscopy of these fibres revealed a hierarchical cell structure that consisted of a primary wall, a secondary wall, a fibre lumen and middle lamellae. the cross-sectional area and porosity fraction of the fibre were estimated to be approximately 0.0245 mm2 and 37%, respectively. the fibre density and fineness were approximately 0.915 ± 0.005 g/cm3 and 9 tex, respectively. an x-ray diffraction and fourier transform infrared analysis of the fibres showed the presence of cellulose iβ with a crystallinity index of 60%. tensile tests showed that the corrected young’s modulus was approximately 7 gpa, the tensile strength was 658 mpa, and the total elongation was between 10% and 12%.

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