Research on the Disintegration Characteristics of Carbonaceous Mudstone and Properties of Modified Materials

Table 2

Measured results of the contact angle on the sample’s surface.

Number	Contact angle (°)
	Unmodified	Modified	Amount of change
A1	38.1	85.3	47.2
A2	35.0	83.1	48.1
A3	32.8	82.9	50.1
A4	34.4	80.8	46.4
A5	35.6	77.9	42.3