Table 1 The composition of PVA-CS/TA hydrogels.

From: Biocompatible autonomous self-healing PVA-CS/TA hydrogels based on hydrogen bonding and electrostatic interaction

Hydrogel

PVA (wt. %)

CS (wt. %)

TA (wt. %)

CS/TA mass ratio

Water (wt. %)

Freezing time (min)

PVA-CS/TA0

30

0

3

0

67

30

40

50

PVA-CS/TA0.5

1

2

0.5

30

40

50

PVA-CS/TA1

1.5

1.5

1

30

40

50

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