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This study investigated effects of residual lignin on composition, structure and properties of cellulose fibrils and cellulose fibril-based films by comparing two groups of cellulose fibrils which contained different amounts of lignin (15% and 2%, respectively) but were similar in cellulose to hemicellulose ratio. The results showed that lignin affected the size and content of nanofibril in cellulose...
High (14.9%), medium (2.4%) and low (0.1%) lignin-containing cellulosic fibers were processed through a micro-grinding method to mechanically produce lignocellulose nanofibrils (LCNFs). Effects of residual lignin on the mechanical defibrillation process were investigated in terms of the nanofibrils yields, the diameters of resultant LCNFs and the micro-grinding energy consumption. The results showed...
In this paper, composite materials made of cellulose paper and MOF-5 (Zn3(BDC)2) Metal organic frameworks (paper@MOF-5) materials, were prepared by an in situ synthesis method using precipitated calcium carbonate (PCC) filled cellulose papers. PCC fillers in the cellulose paper led to decreased inter-fiber bonds, thus facilitating the formation of small-sized MOF-5 crystals. The resultant cellulose...
Hyperbranched poly(3-methyl-3-oxetanemethanol) (HBPO) was directly grafted from the surface of cellulose fibers (CF) through a surface hydroxyl group-initiated ring-opening polymerization of 3-methyl-3-oxetanemethanol (MOM). TOF–SIMS, XPS, AFM, ATR-FTIR, and TGA were utilized for characterizing the resultant HBPO-grafted cellulose fibers. The content of grafted HBPO is easily adjustable by controlling...
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