Synergetic Effects of Mechanical Properties on Graphene Nanoplatelet and Multiwalled Carbon Nanotube Hybrids Reinforced Epoxy/Carbon Fiber Composites

Table 1

Mechanical properties of CNTs/GNPs/epoxy nanocomposites with different carbon nanomaterials mixing ratio.

Test item (unit)	CNTs/GNPs hybrids content (fixed weight fraction: 1 wt%)
	Neat	10 : 0	9 : 1	7 : 3	5 : 5	3 : 7	1 : 9	0 : 10
TS (MPa)	54.9	60.2	61.2	64.1	73.4	58.1	67.0	55.6
FS (MPa)	105.9	118.1	114.5	102.7	127.8	125.7	133.8	104.5
FM (GPa)	2.2	2.59	2.62	2.40	2.71	2.64	2.76	2.53

TS: tensile strength, FS: flexural strength, and FM: flexural modulus.