1938
Plunkett cylinder
Frozen TFE polymerised spontaneously in a DuPont cylinder.
聚四氟乙烯 did not arrive as a finished commodity. DuPont 1938 Plunkett around United States still explains who makes it and which tests it sits in.
Ten dated points, five eras and three milestones below are the spine — not a complete industrial history.
起源
DuPont 1938 PlunkettUnited States
年表
1938Plunkett cylinder
Frozen TFE polymerised spontaneously in a DuPont cylinder.
1940sManhattan seals
UF6-resistant gaskets.
1945Teflon trademark
Civilian brand after the war.
1960sGreen pan lore
Consumer non-stick; overheating warnings later.
1969Gore-Tex e聚四氟乙烯
Bob Gore expanded 聚四氟乙烯 into breathable membranes.
1970sThread seal tape
Plumber’s 聚四氟乙烯 tape.
1990sPFOA debate
Processing aids, not the polymer backbone, drove much regulation.
2000sGenX / alternatives
Fluorochemical aid substitutions.
2010sMedical e聚四氟乙烯
Grafts and patches.
2020sPFAS umbrella
聚四氟乙烯 sits inside a wider policy fight.
时代
1945
Teflon trademark
Civilian brand after the war.
1969
Gore-Tex e聚四氟乙烯
Bob Gore expanded 聚四氟乙烯 into breathable membranes.
1990s
PFOA debate
Processing aids, not the polymer backbone, drove much regulation.
2010s
Medical e聚四氟乙烯
Grafts and patches.
里程碑
Green pan lore
1960sConsumer non-stick; overheating warnings later.
PFOA debate
1990sProcessing aids, not the polymer backbone, drove much regulation.
PFAS umbrella
2020s聚四氟乙烯 sits inside a wider policy fight.
Knowing this timeline is how to read a mill certificate without treating 聚四氟乙烯 as timeless.