2019 International Symposium of Institute of Forest Science (2019.09)바로가기
페이지
pp.121-121
저자
Ji-Soo Park, Chan-Woo Park, Song-Yi Han, Eun-Ah Lee, Gu-Joong Kwon, Jae-Kyung Kwon, Sun-Young Lee, Seung-Hwan Lee
언어
영어(ENG)
URL
https://www.earticle.net/Article/A450362
원문정보
초록
영어
The lingnocellulose was pre-treated by alkaline-peroxide treatment with 12% hydrogen peroxide solution. The holocellulose was prepared by Wise method, and the pure cellulose was obtained from the obtained holocellulose by 5% KOH treatment. Lignocellulose nanofibril (LCNF), holocellulose nanofibril (HCNF), and pure cellulose nanofibril (PCNF) were prepared by wet-disk milling and high-pressure homogenizing from the lignocellulose, holocellulose, and pure cellulose. Filament fibers were obtained by wet-spinning with the 3.5wt% CNF suspensions with different chemical composition. The CNF suspensions were wet-spun in tert-butanol and acetone at 5, 10, and 20 ml/min of spinning rate though the needle of 0.2, 0.3mm. The defibrillation efficiency was improved when the lignin and hemicellulose was removed, and smaller fibers with diameters in the order of PCNF > HCNF > LCNF were produced. The diameter of wet-spun fibers were in the range of 200-300 ㎛. The tensile strength of the wet-spun fibers was higher in order of HCNF > PCNF > LCNF. In all samples, the tensile strength was increased as the spinning rate was increased from 10 ml/min to 30 ml/min. The Orientation index was approximately 0.62.
키워드
Cellulose nanofibrilWet-spinningMicrofiber
저자
Ji-Soo Park [ College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of korea ]
Chan-Woo Park [ College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of korea ]
Song-Yi Han [ College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of korea ]
Eun-Ah Lee [ College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of korea ]
Gu-Joong Kwon [ College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of korea ]
Jae-Kyung Kwon [ National Institute of Forest Science, Seoul 130-713, Republic of Korea ]
Sun-Young Lee [ National Institute of Forest Science, Seoul 130-713, Republic of Korea ]
Seung-Hwan Lee [ College of Forest and Environmental Sciences, Kangwon National University, Chuncheon 24341, Republic of korea ]
Corresponding Author