Thickness effect of kenaf cellulose membrane on its morphological, physical and tensile properties

Dissolution of kenaf core cellulose was undergone in NaOH/Urea solvent and the cellulose solution was casted with three different thicknesses (0.04 mm, 0.06 mm and 0.07 mm) followed by coagulation in 5 % of H2SO4 to form regenerated cellulose membrane. The XRD results showed that the crystallinity i...

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Bibliographic Details
Main Authors: Hashim, Sharifah Nurul Ain Syed, Zakaria, Sarani, Jaafar, Sharifah Nabihah Syed, Chia, Chin Hua
Format: Conference Proceeding
Language:English
Subjects:
Cellulose
Elongation
Kenaf
Light transmittance
Morphology
Pore size
Porosity
Sodium hydroxide
Sulfuric acid
Tensile properties
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Summary:Dissolution of kenaf core cellulose was undergone in NaOH/Urea solvent and the cellulose solution was casted with three different thicknesses (0.04 mm, 0.06 mm and 0.07 mm) followed by coagulation in 5 % of H2SO4 to form regenerated cellulose membrane. The XRD results showed that the crystallinity index (CrI) of kenaf core cellulose membrane decreased after been regenerated into cellulose II. The surface morphology showed that the pores of the membrane became smaller as the thickness of cellulose membrane increased. The transparency tests demonstrated the thinner samples (0.04 mm) gave higher light transmittance than the thickest samples (0.07 mm). The kenaf core membrane with 0.07 mm thickness possessed highest tensile strength and breaking elongation at σ = 33.48 and ε = 8.03 relatively and also exhibited the largest pore size.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4966814