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ELASTIC-MODULUS; MICROCRYSTALLINE CELLULOSE; POLYMER NANOCOMPOSITES; NATIVE CELLULOSE; CRYSTALLINE REGIONS; BACTERIAL CELLULOSE; CANTILEVER DYNAMICS; I-ALPHA; WHISKERS; FIBERS
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Full-Text Articles in Nanoscience and Nanotechnology
Atomic Force Microscopy Characterization Of Cellulose Nanocrystals, Roya Lahiji, Xin Xu, R. Reifenberger, Arvind Raman, Alan Rudie, Robert Moon
Atomic Force Microscopy Characterization Of Cellulose Nanocrystals, Roya Lahiji, Xin Xu, R. Reifenberger, Arvind Raman, Alan Rudie, Robert Moon
Xin Xu
Cellulose nanocrystals (CNCs) are gaining interest as a "green" nanomaterial with superior mechanical and chemical properties for high-performance nanocomposite materials; however, there is a lack of accurate material property characterization of individual CNCs. Here, a detailed Study of the topography, elastic and adhesive properties of individual wood-derived CNCs is performed using atomic force microscopy (AFM). AFM experiments involving high-resolution dynamic mode imaging and jump-mode measurements were performed on individual CNCs under ambient conditions with 30% relative humidity (RH) and under a N-2 atmosphere with 0.1% RH. A procedure was also developed to calculate the CNC transverse elastic modulus (E-T) by …