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Contact angle of the oil droplet with the surface of the core sample in two states before and after injection in different polymers.
| Resin type | Contact angle before injection | Contact angle after injection |
|---|---|---|
| Furan | 142 | 128.59 |
| Epoxy | 142 | 143.13 |
| melamine formaldehyde | 142 | 132.47 |
