The mechanical strength of PCMC beads with different crosslinking times.
| Crosslinking time (h) | 1 | 2 | 3 | 4 | 5 | 6 |
| Mechanical strength (MPa) | 0.32 | 0.29 | 0.42 | 0.22 | 0.18 | 0.19 |
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