PTFE (Polytetrafluoroethyene) is a fluorocarbon polymers. The chemical structure of PTFE has the hydrogen atoms of polyethylene completely displaced by fluorine atoms to form a high molecule. This is a very stable structure. That is why PTFE is a polymer that never age.
PTFE is a superior sealing material. It is clean and non-sticking, you can use it for food industry. It can work up to 260 C. It can work at pH 0-14. It can be processed into film, block or any shape. It has a low coefficient of friction and lubrication is not always necessary. PTFE can work together with other materials like fiberglass or copper to get a better mechanical property. When PTFE is expanded properly, the fiber changes from hair-like structure to a web-like structure and become much more stronger while it is much lighter.
PTFE is also a young material. Until today SinoSeal and its team has been probing into this new product and you can definitely expect progress in this field.
Expanded Polytetrafluoroethylene Unsintered Tape (Degreased Unsintered Tape)
[ Features ]
PTFE resin is first molded into work-blank and then skived. The PTFE resin skived sheet & tape are highly dielectric. Chemical resistant and not aging. They have a wide range of operation temperature.
[ Applications ]
Expanded PTFE unsintered tape is used for packing and thread sealing.
|
Properties |
Unit |
Result |
|
Type I |
Type II |
|
Apparent density |
g/cm3 |
0.6-1.2 |
0.2-0.6 |
|
Tensile strength (min) |
Mpa |
9 |
10 |
|
Ultimate elongation (min) |
% |
80 |
30 |
|
Residual Lubricant content (max) |
% |
0.5 |
0.5
|