Journal
APPLIED PHYSICS LETTERS
Volume 107, Issue 25, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4936755
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Funding
- U.S. Air Force Office of Scientific Research-Low Density Materials Program [FA9550-11-1-0042, FA9550-10-1-0451, FA9550-15-1-0491]
- NSF MRI [CMMI-1429176]
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1429176] Funding Source: National Science Foundation
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We investigate the mechanical strength of boron nitride nanotube (BNNT) polymer interfaces by using in situ electron microscopy nanomechanical single-tube pull-out techniques. The nanomechanical measurements show that the shear strengths of BNNT-epoxy and BNNT-poly(methyl methacrylate) interfaces reach 323 and 219 MPa, respectively. Molecular dynamics simulations reveal that the superior load transfer capacity of BNNT-polymer interfaces is ascribed to both the strong van der Waals interactions and Coulomb interactions on BNNT-polymer interfaces. The findings of the extraordinary mechanical strength of BNNT-polymer interfaces suggest that BNNTs are excellent reinforcing nanofiller materials for light-weight and high-strength polymer nanocomposites. (C) 2015 AIP Publishing LLC.
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