Page 57 - Polymer-based Nanocomposites for Energy and Environmental Applications

Preparation and properties of nanopolymer advanced composites: A review 35

30
600
25
Tensile strength (MPa) 400 Young’s modulus (GPa) 15
500
20
300
10
200
100 5
0 0
GF-EP/CNT 0 deg
GF-EP 0 deg GF-EP 90 deg GF-EP 0 deg GF-EP 90 deg
GF-EP/CNT 0 deg
GF-EP/CNT 90 deg
GF-EP/CNT 90 deg
(A) (B)
Fig. 2.5 Experimentally obtained tensile properties of the GFRPs (A) tensile strengths
and (B) Young’s modulus in 0 and 90 direction [23].

38
37
36
35
34
ILSS (MPa) 33

32
31
30
GFRP with EP-matrix
29 GFRP with CB/EP-matrix
GFRP with DWCNTNH 3 /EP-matrix
28
27
0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35
Filler content (wt%)
Fig. 2.6 Interlaminar shear strength (ILSS) of the (nanoreinforced) GFRPs [23].

the experimental results. Further, they have noticed an interesting phenomenon, that
is, the reduction in the enhancement of compressive strength with increasing the off-
axis angles. In fact, for higher fiber volume fraction laminates, there is a slight reduc-
tion (<5%) of compressive strength at off-axis angle of 15 degrees in laminates with
nanoclay as shown in Fig. 2.7.
The mechanical and thermal properties of noncrimp glass fiber-reinforced clay/
epoxy nanocomposites have been investigated by Bozkurt et al. [25]. They have
reported that, the clay loading has minor effect on the tensile properties as shown