| 학회 | 한국화학공학회 |
| 학술대회 | 2019년 가을 (10/23 ~ 10/25, 대전컨벤션센터) |
| 권호 | 25권 2호, p.1821 |
| 발표분야 | 재료 (Materials) |
| 제목 | Process development for the preparation of cellulose fibers and nanocrystals from rice husk using alkaline catalyst |
| 초록 | Cellulose nanocrystals (CNC) and cellulose nanofibers (CNF) were produced from rice husk. Alkali treatment was applied to remove substances (ash, lignin, C5) except for cellulose from rice husk. The Response-Surface Methods (RSM) was used to optimize the reaction temperature, reaction time, and NaOH concentration for effective alkaline management. At the optimum condition (150 °C, 45 min, 6 wt% NaOH) obtained using RSM, the ash and lignin contents were 99.65% and 81.36%, respectively. A bleaching process was performed using H2O2 and ClO2 in order to remove the residual lignin and the remaining impurities in the process. CNF were made of the bleached solids using physical milling (planetary milling) process. Chemical process was also used to produce CNC (80 °C, 15-150 min, 40 wt% sulfuric acid). The particle size and shape of the produced CNC and CNF were confirmed through XRD and SEM analysis. |
| 저자 | 정현진1, 곽 현2, 오경근1, 김지은1, 송채원1, 이정민1 |
| 소속 | 1단국대, 2(주) 슈가엔 |
| 키워드 | 재료 |
| 원문파일 | 초록 보기 |
