Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia; Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
Int J Biol Macromol. 2019 Feb 15;123:379-388. doi: 10.1016/j.ijbiomac.2018.11.124. Epub 2018 Nov 14.
Nanofibrillated cellulose (NFCs) were extracted from sugar palm fibres (SPS) in two separate stages; delignification and mercerization to remove lignin and hemicellulose, respectively. Subsequently, the obtained cellulose fibres were then mechanically extracted into nanofibres using high pressurized homogenization (HPH). The diameter distribution sizes of the isolated nanofibres were dependent on the cycle number of HPH treatment. TEM micro-images displayed the decreasing trend of NFCs diameter, from 21.37 to 5.5 nm when the number of cycle HPH was increased from 5 to 15 cycles, meanwhile TGA and XRD analysis showed that the degradation temperature and crystallinity of the NFCs were slightly increased from 347 to 347.3 °C and 75.38 to 81.19% respectively, when the number of cycles increased. Others analysis also were carried on such as FT-IR, FESEM, AFM, physical properties, zeta potential and yield analysis. The isolated NFCs may be potentially applied in various application, such as tissue engineering scaffolds, bio-nanocomposites, filtration media, bio-packaging and etc.
从糖棕纤维（SPS）中提取纳米原纤纤维素（NFCs）分为两个独立的阶段；分别进行脱木质素和丝光化处理，以去除木质素和半纤维素。然后，通过高压均质（HPH）将获得的纤维素纤维机械提取成纳米纤维。分离得到的纳米纤维的直径分布大小取决于 HPH 处理的循环次数。TEM 微图像显示，当 HPH 处理的循环次数从 5 增加到 15 时，NFCs 的直径从 21.37nm 逐渐减小到 5.5nm，同时 TGA 和 XRD 分析表明，NFCs 的降解温度和结晶度分别从 347°C 略微增加到 347.3°C 和从 75.38%增加到 81.19%。还进行了其他分析，如 FT-IR、FESEM、AFM、物理性能、Zeta 电位和产率分析。分离得到的 NFCs 可能具有广泛的应用潜力，如组织工程支架、生物纳米复合材料、过滤介质、生物包装等。
