Effect of temperature on the wetting performance of coal powder by different surfactant solutions: experimental and molecular dynamics simulation study.

The decreases in contact angles for BS-12 and SDS were similar, at 45.3% and 46.8%, respectively, indicating that these two surfactants had comparable effects in enhancing wettability.Although water also exhibited a decreasing trend in contact angle with increasing temperature, the degree of reduction was significantly less than that observed in surfactant solutions.

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