These two steel balls sit in a pool of octane, a component of
petroleum, that has been dyed yellow. Though the ball on the left has picked up
streaks of the oily liquid, the ball on the right has repelled the octane
thanks to a self-healing, superslippery coating called X-SLIPS. Researchers
developed this coating, which repels both water and oil, based on the slippery
interiors of Nepenthes pitcher plants
and the wax layer on plant leaves. To make the coating, the team applied a 2.5-
µm-thick layer of fluorinated silane to the sanded surface of the ball. A
spritz of DuPont’s Krytox lubricant, a perfluorinated oil similar to Teflon,
adheres tightly to the silane to create a surface that fends off water and oil.
After damaging the coating with blasts of oxygen plasma or abuse with 40-grit
sandpaper, the researchers could restore it by simply heating it, causing the
remaining silane to redistribute across the surface and re-adhere. The coating
could be useful on ships or in condiment packaging.
compare me when people blab about “”beautiful hardwood floors”” to me when people paint over literally any piece of wooden furniture to me when people paint over wood laminate furniture especially to me when the word “teak” falls out of anybody’s mouth
this is my favorite in painting shortcuts archaeology. this is the pantry, which is actually an addition from maybe fifteen years ago, so this is almost the only wall in the house that isn’t from the twenties. that white is unpainted drywall! they put the modular shelving up before they treated or painted the wall at all, then just painted around the brackets! they were like glued on by paint, too, guess it made them stronger!!