Reinterpretation of the mechanical reinforcement of polymer nanocomposites reinforced with cellulose nanorods
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In: Journal of Applied Polymer Science, Vol. 134.2017, No. 35, 45254, 15.05.2017.
Research output: Contribution to journal › Article › Research › peer-review
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TY - JOUR
T1 - Reinterpretation of the mechanical reinforcement of polymer nanocomposites reinforced with cellulose nanorods
AU - Sapkota, Janak
AU - Martinez Garcia, Julio Cesar
AU - Lattuada, Marco
PY - 2017/5/15
Y1 - 2017/5/15
N2 - The mechanical reinforcement of nanocomposites containing nanorods-like fillers such as cellulose nanocrystals (CNCs) is often interpreted by adapting the classical parallel–series model, assuming a simple hyperbolic dependence between the percolation threshold and aspect ratio. However, such assumptions are valid only for nanorods with high aspect ratio and often are misinterpreting the reinforcement obtained at low volume fraction of filler loading. To elucidate this intriguing scenario, we proposed a new approach and validated it by compiling and reinterpreting some of available literature that represent the experimental reinforcement with CNCs. Our approach showed better accuracy, specifically for the cases of CNC nanorods with lower aspect ratio. We conclude that this route permits a more realistic evaluation of the mechanical reinforcement, where a physical parameter accounting the polymer filler association is introduced. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45254.
AB - The mechanical reinforcement of nanocomposites containing nanorods-like fillers such as cellulose nanocrystals (CNCs) is often interpreted by adapting the classical parallel–series model, assuming a simple hyperbolic dependence between the percolation threshold and aspect ratio. However, such assumptions are valid only for nanorods with high aspect ratio and often are misinterpreting the reinforcement obtained at low volume fraction of filler loading. To elucidate this intriguing scenario, we proposed a new approach and validated it by compiling and reinterpreting some of available literature that represent the experimental reinforcement with CNCs. Our approach showed better accuracy, specifically for the cases of CNC nanorods with lower aspect ratio. We conclude that this route permits a more realistic evaluation of the mechanical reinforcement, where a physical parameter accounting the polymer filler association is introduced. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45254.
KW - Polymer nanocomposites
KW - Cellulose Nanocrystals
KW - Mechanical Properties
KW - Percolation theory
KW - nanomaterials/nanostructures
KW - modelling
KW - composites
U2 - 10.1002/app.45254
DO - 10.1002/app.45254
M3 - Article
VL - 134.2017
JO - Journal of Applied Polymer Science
JF - Journal of Applied Polymer Science
SN - 0021-8995
IS - 35
M1 - 45254
ER -