Hydrophobic cotton textile surfaces using an amphiphilic graphene oxide (GO) coating

- Different GO dispersions were prepared by sonicating different amounts of GO in water. Degree of exfoliation of these GO sheets in water was analyzed using Atomic Force Microscopy (AFM).
- AFM results obtained showed higher the GO concentration on water more the size of GO sheets and lesser the degree of exfoliation.
- GO with different amounts was deposited on cotton fabric using simple dyeing method.
- High GO loading on cotton increase the surface area coverage of the textile fibers with GO sheets. This led to less edge to mid area ratio of grafted GO sheets.
- As contribution of mid area of GO increase on fiber surface cotton fabric becomes more hydrophobic.
- Amphiphilic property of GO sheets was used to lower the surface energy of the cotton fibers leading to hydrophobic property.