Table 2 Water SCAs, advancing contact angles (ACAs), receding contact angles (RCAs) on glass and natural stone surfaces and corresponding HAs before and after 101S treatment
From: Nano-materials enhanced protectants for natural stone surfaces
Surface | Blank | With 101S modification | |||
|---|---|---|---|---|---|
SCA (°) | SCA (°) | ACA (°) | RCA (°) | HA (°) | |
Glass | 62.6 ± 0.3 | 118.0 ± 0.5 | 128.0 ± 0.6 | 103.1 ± 0.5 | 24.9 |
Marble | 53.0 ± 0.7 | 139.3 ± 0.6 | 148.0 ± 0.4 | 114.0 ± 0.3 | 34.1 |
Qingshi | 38.3 ± 0.6 | 137.0 ± 0.7 | 141.0 ± 0.6 | 93.6 ± 0.7 | 47.3 |
Hedishi | 47.0 ± 0.7 | 133.6 ± 0.8 | 137.9 ± 0.5 | 111.0 ± 0.8 | 26.9 |