Table 5 Results of tensile test on-board

From: Hydrogel mechanical properties in altered gravity

(a) Hydrogels 0%SR: comparison between 3 gravity levels

Sample

k (N/mm)

E (MPa)

g0

µg0

1.8g0

g0

µg0

1.8g0

PEGDA

0.70

0.70

0.71

2.32

2.32

2.31

PEGDA-GO

0.69

0.69

0.68

2.62

2.63

2.60

(b) PEGDA-GO 0% SR: E (MP) comparison between 1.8g0 µ g0 during five parabolas

Gravity

Parabola 1

Parabola 2

Parabola 3

Parabola 4

Parabola 5

1.8g0

2.61

2.61

2.60

2.64

2.73

µ g0

2.63

2.58

2.64

2.61

2.47

(c) Average E (MPa) ± SEM: Comparison between tests ground and on-board

Sample

Gravity

0% SR

5% SR

8% SR

11% SR

13% SR

PEGDA

g0

2.46 ± 0.10

2.26 ± 0.08

2.11 ± 0.11

2.07 ± 0.11

1.85 ± 0.09

1.8g0

2.28 ± 0.22

2.07 ± 0.03

1.84 ± 0.01

1.71 ± 0.02

1.75 ± 0.07

µg0

2.27 ± 0.22

2.07 ± 0.03

1.84 ± 0.00

1.74 ± 0.01

1.73 ± 0.02

PEGDAGO

g0

2.51 ± 0.04

2.16 ± 0.06

2.05 ± 0.05

1.98 ± 0.06

2.01 ± 0.08

1.8g0

2.35 ± 0.09

1.87 ± 0.08

1.79 ± 0.15

1.73 ± 0.14

1.59 ± 0.29

µg0

2.36 ± 0.09

1.90 ± 0.09

1.83 ± 0.15

1.75 ± 0.15

1.70 ± 0.16

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