Table 1.

Mechanical properties of graphene/wPU composites.

Elongation (%)	Control wPU	0.05 wt% rGO	0.1 wt% rGO	0.2 wt% rGO
100	1.346	1.79993	2.01208	2.26822
200	1.77692	2.34687	2.622	2.85584
300	2.28896	3.1159	3.34462	3.52965
400	3.05701	4.13686	4.33906	4.47376
500	4.22557	5.6379	5.8506	5.83704
600	6.0025	8.30244	8.43945	8.1601
700	9.93656	–	13.81825	12.50067
Ultimate tensile strength (MPa)	12.81276	12.48957	17.12199	21.22293
Ultimate elongation (%)	744.93671	666.10127	748.63291	791.41772