Mechanical properties and melt flow index (MFI) of SMA copolymer and GNFC composites.
Sample code
SMA
SMA+L
2.5% GNFC
5% GNFC
10% GNFC
Tensile strength (MPa)
45.3 (1.8)
41.4 (1.6)
45.4 (1.9)
43.7 (2.9)
40.7 (2.4)
TMOE (GPa)
3.1 (0.1)
3.1 (0.1)
3.3 (0.1)
3.3 (0.1)
3.6 (0.1)
EAB (%)
2.3 (0.2)
3.1 (0.5)
1.8 (0.2)
1.7 (0.2)
1.2 (0.2)
Flexural strength (MPa)
85.5 (3.1)
82.2 (3.0)
79.9 (4.9)
77.8 (3.3)
69.4 (3.7)
FMOE (GPa)
3.0 (0.1)
3.0 (0.1)
3.3 (0.1)
3.2 (0.1)
3.4 (0.1)
MFI (g/10 min)
5.1 (0.5)
5.9 (0.5)
4.2 (0.5)
2.1 (0.4)
0.3 (0.1)
Parenthesis indicates standard deviation and the same letters indicate no statistical difference between properties of composites and those around it (). FMOE: flexural modulus of elasticity; TMOE: tensile modulus of elasticity; EAB: elongation at break; and MFI: melt flow index.
