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Geofluids
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2019
/
Article
/
Tab 3
/
Research Article
Synthesis and Interface Activity of a Series of Carboxylic Quaternary Ammonium Surfactants in Hydraulic Fracturing
Table 3
Surface properties of different surfactants at room temperature.
Surfactants
CMC (mmol·L
-1
)
(mN·m
-1
)
(mN·m
-1
)
(mol·cm
-2
)
(nm
2
)
CTAAC
0.15
30.65
41.35
3.16
0.28
CTABU
0.24
32.07
39.93
2.67
0.84
CTAHE
4.21
36.73
35.27
1.41
1.98
CTACA
13.91
39.61
31.39
0.62
2.84