New development of self-damping MWCNT composites

Interlocked CNT networks with high damping and storage modulus

“…When CNTs are mixed with polymer matrix, the resultant composites tend to show enhanced damping properties [9][10][11], and therefore greater energy dissipations, which mainly result from slippage and friction between inter-tubes and tube-matrix [12][13][14], and the viscoelasticity of the polymer matrix. It was reported that the CNT/epoxy composite showed high damping ratio at 0.3, however its storage modulus was as low as 11 MPa [9].…”

Carbon and titanium dioxide nanotube polymer composite manufacturing – characterization and interphase modeling

“…The literature on ultrasonic dispersion of nanoparticles in epoxy resin showed differing information about optimum processing parameters. These parameters include sonication power and amplitude, sonicator probe diameter, sonicator probe immersion depth, sonication mode (pulsing or continuous) and pulsing mode intervals, sonication temperature, sonication energy and energy densities, and container materials and dimensions (Alnefaie, Aldousari, & Khashaba, 2013). A final conclusion has not been given regarding the most efficient method for CNT/epoxy resin manufacturing, but many investigations are ongoing on this subject.…”

Improvement of toughness and shear properties of multiwalled carbon nanotubes/epoxy composites

“…The aggregated CNTs are in the form of bundles or ropes, usually with highly entangled network structure that is very difficult to disperse [2,[12][13][14][15]. The aggregated MWCNTs in the developed composites can be considered as discontinuities, which have great effect on the fracture toughness.…”

“…The CNTs are usually aggregated due to the van der Waals attractive interactions and the attractive forces between the MWCNTs themselves [13]. The aggregated CNTs are in the form of bundles or ropes, usually with highly entangled network structure that is very difficult to disperse [2,[12][13][14][15].…”