Non-fluorinated water-based superhydrophobic surfaces

A superhydrophobic surface comprising a substrate treated with a non-fluorinated composition comprising:

• a water-dispersible hydrophobic polymer free of fluorine;
• a water-dispersible exfoliated graphite filler particle including acid functional groups;
• water;
• and
• a stabilizing compound, wherein the composition is at a pH greater than 7, wherein the hydrophobic polymer is in an aqueous dispersion, and wherein the aqueous dispersion is free of organic solvents.

A superhydrophobic surface comprising a substrate treated with a non-fluorinated composition comprising:

• a water-dispersible hydrophobic component free of fluorine;
• a stabilizing compound, wherein the stabilizing compound is selected from KOH and NH3(aq);
• a water-dispersible filler particle;
• and
• water, wherein the composition is at a pH greater than 7, wherein the hydrophobic component is in an aqueous dispersion, and wherein the aqueous dispersion is free of organic solvents.