The introduction of nanoscaled reinforcement in otherwise conventional fiber reinforced composite materials has opened
an exciting new area in composites research. The unique properties of these materials combined with the design
versatility of fibrous composites may offer both enhanced mechanical properties and multiple functionalities which has
been a focus area of the aerospace technology on the last decades. Due to unique properties of carbon nanofillers such as
huge aspect ratio, extremely large specific surface area as well as high electrical and thermal conductivity, Carbon
Nanotubes have benn investigated as multifunvtional materials for electrical, thermal and mechanical applications.
In this study, MWCNTs were incorporated in a typical epoxy system using a sonicator. The volume of the
nanoreinforcement was 0.5 % by weight. Two different levels of sonication amplitude were used, 50% and 100%
respectively. After the sonication, the hardener was introduced in the epoxy, and the system was cured according to the
recommended cycle. For comparison purposes, specimens from neat epoxy system were prepared. The
thermomechanical properties of the materials manufactured were investigated using a Dynamic Mechanical Analyser.
The exposed specimens were subjected to thermal shock. Thermal cycles from +30 °C to -30 °C were carried out and
each cycle lasted 24 hours. The thermomechanical properties were studied after 30 cycles .
Furthermore, the epoxy systems prepared during the first stage of the study were used for the manufacturing of 16 plies
quasi isotropic laminates CFRPs. The modified CFRPs were subjected to thermal shock. For comparison reasons
unmodified CFRPs were manufactured and subjected to the same conditions. In addition, the interlaminar shear strength
of the specimens was studied using 3-point bending tests before and after the thermal shock. The effect of the
nanoreinforcement on the environmental degradation is critically assessed.