Journal
MECHANICS OF ADVANCED MATERIALS AND STRUCTURES
Volume 26, Issue 1, Pages 35-41Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15376494.2018.1534165
Keywords
Carbon nanotubes; epoxy resin; directional alignment; non-uniform electric field; nanoindentation
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Funding
- Naval Research Board, DRDO, India [NRB/4003/PG/359]
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The present work demonstrates a novel method to preferentially orient carbon nanotubes (CNTs) in an epoxy matrix using a non-uniform electric field. The alignment method is based on the principle of dielectrophoresis. Aligned CNT/epoxy composites containing 0.01, 0.05 and 0.1 wt. % CNTs, respectively were fabricated using the method. The elastic modulus and hardness of the samples evaluated using nanoindentation technique were observed to increase with increasing CNT loading. The tensile strength of nanocomposite samples containing 0.1 wt. % CNTs increased by approximately 27% due to CNT alignment in epoxy matrix.
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