Table 2.
Comparison of various superhydrophobic sponges.
| Samples | Solvent/oil | Sorption | Linked materials | Hydrophobic materials | Environmental impact | Water contact angle | WCA after recycle | References |
|---|---|---|---|---|---|---|---|---|
| Polyurethane | ||||||||
| Sponge | Rapeseed oil | 43 | Attapulgite | OTS | Little | 160° | / | 54 |
| MS | Chloroform | 53 | SiO2 | OTS and Polyfluorowax | Medium | 150° | / | 13 |
| MS | Motor oil | 40.5 | GPTS/APTES | OTS | Medium | 151.39° | 142.13° | 19 |
| MS | Chloroform | 165 | Graphene nanosheets | PDMS | Little | 162° | / | 26 |
| Polyurethane | ||||||||
| Sponge | Silicone oil | 43.3 | SiO2 | Poly(vinylidene fluoride) | Medium | 154.3° | / | 23 |
| CNT sponge | Chloroform | 176 | / | 1,2-dichlorobenzene as the carbon source | Little | / | / | 55 |
| Poly(melamine–formaldehyde) sponge | Chloroform | 145 | / | Lighting the toluene on the sponge surface | Medium | 149° | / | 56 |
| Melamine sponge | Phenixin | 165.9 | PDA | OTS | Little | 153° | 145° | This work |
The “/” represents the data were not given in the references.