Abstract
Nano mechanical behavior of bio composites
Highlights
IntroductionExtensive research has shown that the bulk properties of plants are comprised from a complex interdependency between the properties of the individual components (i.e., matrix polymers, polysaccharides, and cellulose microfibrils) and the comprised architecture (i.e., the structure and orientation) within a cell wall [2,3,4,5,6,7]
Extensive research has shown that the bulk properties of plants are comprised from a complex interdependency between the properties of the individual components and the comprised architecture within a cell wall [2,3,4,5,6,7]
As previously discussed, in order to accurately measure the relative elastic modulus of individual components of a cell wall on the nanoscale, the QNM package of the ICON AFM was used in this study
Summary
Extensive research has shown that the bulk properties of plants are comprised from a complex interdependency between the properties of the individual components (i.e., matrix polymers, polysaccharides, and cellulose microfibrils) and the comprised architecture (i.e., the structure and orientation) within a cell wall [2,3,4,5,6,7]. For measuring the elastic properties of an individual cellulose microfiber in a synthetic composition of pure bacterial cellulose [7, 8], this value must be extrapolated. In the Raman spectroscopy method, an estimate for the Young’s modulus of an individual cellulose microfiber is calculated through monitoring the amount of changes in the C-O stretching bond on the cellulose polymer backbone [9]. One of the disadvantages of this technique is the assumption of complete crystallinity of the cellulose, which is not independently confirmed. Another disadvantage is the unknown effect of the uniformity of orientation of the microfibers under measurement, which would result in bias in the magnitude of the crystallographic changes
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