Page 73 - Polymer-based Nanocomposites for Energy and Environmental Applications

50 Polymer-based Nanocomposites for Energy and Environmental Applications

Table 2.9 Summary of debond fracture toughness results [41]
Debond fracture toughness for the infusion of
0.5 wt% 1.0 wt% 1.5 wt%

G e Gain G e Gain G e Gain
Type of Neat (kJ/ (kJ/ (kJ/
2
2
2
2
sandwich core (kJ/m ) m ) m ) m )
Neat 0.26 – – – – – –
– 0.39 50.0 0.30 15.4 – –
TiO 2
5nm
10 nm – 0.29 11.5 0.35 34.6 0.27 3.8
35 nm – 0.20 23.1 – – – –
Nanoclay – 0.37 42.3 0.44 69.2 0.25 3.8
CNFs – 0.30 15.4 0.27 3.8 – –
MWNTs – 0.35 34.6 0.41 57.7 0.38 46.2

Fig. 2.20 Scanning electron micrographs of sandwiches with (A) neat, (B) 0.5% nanoclay, and
(C) 1% nanoclay cores tested at 30 J (arrow indicating impact location) [42].