I think so, Brain … but why does Teflon stick to the pan?
hogewash
Never pick a fight with a man who buys pixels by the terabyte.
I think so, Brain … but why does Teflon stick to the pan?
I used to work for a guy who was one of the principle developers of Teflon when he worked for DuPont. It took them a while to come up with the approach, and longer to get it working.
The trick was in etching the steel pan surface in such a way as to form a network of wormholes or tendrils, extending irregularly into the metal, the hot polymer is softened (it doesn’t actually melt; it scinters) and pressed onto and into the pan surface under high pressure. So it is actually being physically held in place by a structure of roots, rather than surface adhesion.
He also knows where they dumped the first few thousand production runs of the polymer that didn’t make specifications – enormous buried lumps of non-biodegradable stuff. He said that in the event of an apocalypse and social collapse when hydrocarbons are scarce, he will know where to go to set up the world’s only Teflon mine.
One day we will see a great industry mining old garbage dumps. The “recyclers” of today want to get the goodies before they are buried in the dumps. But what about the centuries of glass, metal, and plastics that are already buried and just waiting for an enterprising individual to dig them out?