期刊
POLYMERS
卷 13, 期 16, 页码 -出版社
MDPI
DOI: 10.3390/polym13162649
关键词
aerogel; CNC; CNF; freeze-drying; OPEFB
资金
- CPO Fund of the Ministry of Finance (Badan Pengelola Dana Perkebunan Kelapa Sawit, BPDP-KS) [PRJ-01/DPKS/DIT.IV/2021]
This study focuses on utilizing CNC and CNF from unbleached fiber of oil palm empty fruit bunches to fabricate aerogel, with different ratios impacting the characteristics of the aerogel. The obtained aerogel exhibited high specific surface areas and crystallinity degrees, showing promising potential for various applications.
This study aims to explore the use of cellulose nanocrystals (CNC) and cellulose nanofiber (CNF), obtained from unbleached fiber of oil palm empty fruit bunches (EFB), as raw materials in fabricating aerogel, using the facile technique without solvent displacement. The CNC was isolated from sulfuric acid hydrolysis, and the CNF was fibrillated using Ultra Turrax. The CNC and CNF were mixed by ultrasonication in different ratios to produce aerogel using slow freezing (-20 degrees C), followed by freeze-drying. The obtained aerogel was characterized as ultralightweight and highly porous material, at the density range of 0.0227 to 0.0364 g/cm(3) and porosity of 98.027 to 98.667%. Interestingly, the ratio of CNC and CNF significantly affected the characteristics of the obtained aerogel. The mixed aerogel exhibited a higher specific surface area than pure CNC or CNF, with the highest value of 202.72 m(2)/g for the ratio of 1:3 (CNC/CNF). In addition, the crystallinity degree of obtained aerogel showed a higher value in the range of 76.49 to 69.02%, with the highest value being obtained for higher CNC content. This study is expected to provide insight into nanocellulose-based aerogel, with a promising potential for various applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据