Thermal and Mechanical Properties of Microporous Polyurethanes Modified with Reduced Graphene Oxide

Table 2

Storage modulus , loss modulus , and loss tangent () plotted versus temperature for the nanocomposites containing different amounts of RGO nanofiller.

Samples

(−50°C)/MPa

(0°)/MPa

(25°C)/MPa

/°C

/°C

DSC//°C

Apparent density/gcm^−3

/kPa

/%

Hardness/°Shore A

Cell size/μm

Water absorption/%

MPU

348

22

3

−14

−0.8

−15

0.388

2.53 ± 0.2

365 ± 7

47

133 ± 23

14.5 ± 0.6

MPU0.25%

660

45

7

−13

−2.4

−17

0.392

2.78 ± 0.1

408 ± 8

48

15.5 ± 1.2

MPU0.50%

563

28

5

−17

−4.4

−19

0.450

2.95 ± 0.2

457 ± 10

51

143 ± 16

19.6 ± 1.6

MPU0.75%

419

26

4

−15

−3.5

−17

0.473

1.26 ± 0.15

136 ± 15

50

23.7 ± 2.3

MPU1.00%

643

47

8

−15

−2.2

−19

0.484

0.98 ± 0.1

94 ± 10

53

361 ± 62

27.8 ± 2.5

MPU1.25%

456

47

4

−11

−0.6

−19

0.499

0.83 ± 0.1

52 ± 5

59

32.6 ± 1.8