| abstract |
An elastic tube capable of further improving durability while ensuring solvent resistance is provided. A fluorine-based elastic tube 1 is composed of an elastic hollow body 10 made of a fluorine-based polymer and an amorphous perfluororesin film 20 having a thickness of 1 μm or less on the inner surface thereof. The amorphous perfluororesin film has, for example, formula (1), formula (2a), or formula (2b) as a repeating unit. (In the formula, R 1 , R 2 , and R 3 each independently represent a fluorine atom or a perfluoroalkyl group.) [Selection] Figure 1 |