Isolation and Characterization of Cellulose Nanofiber(CNF)from Kenaf(Hibiscus cannabinus)Bast through the Chemo-Mechanical Process  

作　　者：Rudi Dungani Mohammad Irfan Bakshi Tsabita Zahra Hanifa Mustika Dewi Firda A.Syamani Melbi Mahardika Widya Fatriasari 

机构地区：[1]School of Life Sciences and Technology,Institut Teknologi Bandung,Bandung,40132,Indonesia [2]Research Center for Biomass and Bioproducts,National Research and Innovation Agency(BRIN),Cibinong,16911,Indonesia

出　　处：《Journal of Renewable Materials》2024年第6期1057-1069,共13页可再生材料杂志（英文）

基　　金：Ministry of Education,Culture,Research and Technology(KEMENDIKBUDRISTEK);Republic of Indonesia,for providing the Research Grant“Basic Research Scheme”No.110/E5/PG.02.00.PL/2023.

摘　　要：The present work emphasizes the isolation of cellulose nanofiber(CNF)from the kenaf(Hibiscus cannabinus)bast through a chemo-mechanical process.In order to develop high CNF yield with superior properties of CNF for improving compatibility in varied applications this method is proposed.The fiber purification involved pulping and bleaching treatments,whereas mechanical treatment was performed by grinding and high-pressure treatments.The kraft pulping as a delignification method followed by bleaching has successfully removed almost 99%lignin in the fiber with high pulp yield and delignification selectivity.The morphology of the fibers was characterized by scanning electron microscopy,which showed a smooth surface,fiber bundles,gel-shaped nanofiber,and an average size of 94.05 nm with 69%of CNF in 34–100 nm size.The chemo-mechanical process exhibited a more crystalline nature in CNF than pulp kenaf.The low zeta potential values exhibit the distribution of fibrils and colloidal suspension stability without any further agglomeration.A lower concentration of CNF is less stable exhibiting the product agglomeration.Therefore,the chemo-mechanical process for the isolation of CNF(Hibiscus cannabinus)from kenaf involves sustainable,low-cost,non-toxic,and cheap alternatives than other traditional methods.

关 键 词：Kenaf bast fiber kraft delignification and bleaching ultrafine grinder chemo-mechanical properties CNF 

分 类 号：TB383[一般工业技术—材料科学与工程]