Table 5 Results of surface tension and contact angle of compounded solutions.

From: Experimental study on the impact of “IDS + JFCS” complex wetting agent on the characteristics of coal bodies

Serial number

Compound solution

Surface tension (mN/m)

Contact angle (°)

M1

SAS + IDS

19.90

55

M2

SDBS + IDS

49.03

65

M3

1631 + IDS

24.70

22

M4

JFCS + IDS

29.70

19

M5

BS-12 + IDS

34.13

64

M6

APG + IDS

28.53

27

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