Department of Chemistry, Faculty of Science and Technology, Thammasat University, Phahonyothin Road Pathumthani, 12120, Thailand.
National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand.
Carbohydr Polym. 2020 Jul 15;240:116215. doi: 10.1016/j.carbpol.2020.116215. Epub 2020 Apr 7.
The objective of this work was to prepare functionalized cellulose fiber from sugar cane leaf (SCF) used to produce novel biomaterial. The SCF was treated with chloroacetic acid and sodium hydroxide (NaOH) to produce a modified cellulose fibre (MSCF). At higher MSCF loading, a greater porous density was observed under SEM. The addition of MSCF improved, the water resistance of the cured PVA/MSCF in both acid and base media through chemical reactions. The moisture absorption and moisture content of the cured PVA/MSCF film increased as the loading increased MSCF. Tg of the cured PVA/MSCF showed a clear decrease that was attributed to the greater molecular weight and softness of the molecular chains. The cured PVA/MSCF showed good MB absorption from wastewater. The improvement in biodegradability of the cured PVA/MSCF film may make it a candidate material for use in environmentally-sensitive applications.
这项工作的目的是制备用于生产新型生物材料的甘蔗叶功能化纤维素纤维（SCF）。SCF 用氯乙酸和氢氧化钠（NaOH）处理，以产生改性纤维素纤维（MSCF）。在更高的 MSCF 负载下，SEM 下观察到更大的多孔密度。通过化学反应，MSCF 的加入提高了 PVA/MSCF 在酸和碱介质中的耐水性能。随着 MSCF 负载的增加，固化 PVA/MSCF 薄膜的吸湿率和水分含量增加。固化 PVA/MSCF 的 Tg 明显降低，这归因于分子链的更大分子量和柔软性。固化 PVA/MSCF 对废水中的 MB 具有良好的吸收能力。固化 PVA/MSCF 薄膜的生物降解性的提高可能使其成为用于环境敏感应用的候选材料。
