You're fifty years late. Doomwatch did an episode called The Plastic Eaters in 1970.
"A plane dissolves in mid-air, its plastic components eaten away. Doomwatch faces its first challenge: to halt the disastrous spread of a man-made virus with the power to melt all plastic."
"A plane dissolves in mid-air, its plastic components eaten away. Doomwatch faces its first challenge: to halt the disastrous spread of a man-made virus with the power to melt all plastic."
https://www.imdb.com/title/tt0564476/