糖棕纳米纤维素增强糖棕淀粉生物纳米复合材料的制备与性能研究。
Development and characterization of sugar palm nanocrystalline cellulose reinforced sugar palm starch bionanocomposites.
机构信息
Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia.
Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia; Department of Mechanical and Manufacturing Engineering, Universiti Putra Malaysia, 432400, UPM Serdang, Selangor, Malaysia.
出版信息
Carbohydr Polym. 2018 Dec 15;202:186-202. doi: 10.1016/j.carbpol.2018.09.002. Epub 2018 Sep 1.
Sugar palm fibre (SPF) was treated with NaClO, bleached with NaOH and subsequently hydrolyzed with acid to obtain sugar palm nanocrystalline cellulose (SPNCCs). Bionanocomposites in the form of films were prepared by mixing sugar palm starch (SPS) and sorbitol/glycerol with different nanofiller SPNCCs compositions (0-1.0 wt%) using solution casting method. The resulting fibres and nanocomposites were characterized in terms of morphology (FESEM and TEM), footprint, crystallinity (XRD), light transmittance, biodegradability, physical, water barrier, thermal (TGA, DSC and DMA) and mechanical properties. The length (L), diameter (D) and L/D values of the SPNCCs were 130 ± 30.23, 8.5 ± 1.82 nm, and 15.3, respectively. The SPS/SPNCCs nanocomposite films exhibited higher crystallinity, tensile strength, Young's modulus, thermal and water-resistance compared to the neat SPS film. The results showed that the tensile strength and moduli of the bionanocomposites increased after being reinforced with SPNCCs and the optimum nanofiller content was 0.5%.
糖棕纤维（SPF）经 NaClO 处理，用 NaOH 漂白，然后用酸水解得到糖棕纳米纤维素晶体（SPNCCs）。通过溶液浇铸法将糖棕淀粉（SPS）和山梨糖醇/甘油与不同纳米填料 SPNCCs 组成（0-1.0wt%）混合，制备出薄膜形式的生物纳米复合材料。对所得纤维和纳米复合材料进行形态（FESEM 和 TEM）、足迹、结晶度（XRD）、透光率、生物降解性、物理性能、水阻隔性、热性能（TGA、DSC 和 DMA）和机械性能进行了表征。SPNCCs 的长度（L）、直径（D）和 L/D 值分别为 130±30.23nm、8.5±1.82nm 和 15.3。与纯 SPS 薄膜相比，SPS/SPNCCs 纳米复合材料薄膜表现出更高的结晶度、拉伸强度、杨氏模量、热稳定性和耐水性。结果表明，经 SPNCCs 增强后，生物纳米复合材料的拉伸强度和模量增加，最佳纳米填料含量为 0.5%。
Zotero 插件