Table 1.
Contact angle and mechanical characterization of silane-based coatings.
| Ref. | Coating Type |
Contact Angle (Water) |
Crosscut Adhesion (ASTM3359-09e2) |
Pull/Off Adhesion (MPa) |
Impact Test (J) |
Cross Hatch | Bending Test (mm) |
|---|---|---|---|---|---|---|---|
| [25] 1 | fluoroalkyl silane (FAS)/CeO2 | 161 ± 2° | 4B (level 2) |
- | - | - | |
| [26] | PDMS/TiO2 | 10° 2 | - | 10 | pass | <5 | |
| [27] 3 | Perfluorooctyltriethoxysilane (PFOTES)-SiO2 | 166° 4 | 5B | 6.85 ± 0.16 | - | - | - |
| [28] | PDMS/ZnO NRs (0.5 wt%) |
158° | - | 15 | pass | <5 | |
| [29] | PDMS/b-MnO2 NRs (0.5 wt%) |
158° | 5B | 15 | pass | <5 | |
| [30] 5 | PDMS/GO-Al2O3 NRs (1.0 wt%) |
151° | - | 15 | pass | <5 | |
| [31,32] | FDTS-PDMS-ZnO | 120.64° | - | 2.41 ± 0.03 | - | - | - |
| [33] | polydimethylsiloxane (PDMS), furan and meso-porous SiO2 (SBA-15) | 155.6° | 5B (level 1) |
- | - | - | |
| [34] 6 | PDMS/Ag | 148° ± 1° | - | 8 | pass | <5 | |
| [35] | PDMS-PEG 20% | 117° | - | - | - | - | |
| [36] | PDMS | 100° | 4/5B (level 2/1) |
- | - | - | |
| [37] | HPA-Si-GO | - | - | 1.25 ± 0.07 |
1 sliding angle: first cycle 4°, after 30 cycles of abrasion < 6°. 2 After UV irradiation. 3 Surface roughness: 2–3 μm, Pencil hardness: 8H (being the grades from 0 to 9 H:hardest), Hardness: 0.24 ± 0.01 GPa. Modulus: 1.57 ± 0.11 MPa. 4 105° in dodecane. 5 Modulus: 4.12 ± 0.1 MPa. 6 Surface roughness: 0.16 micron.