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Datasheet1
Datasheet2
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TORLON® (*)
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Vulkollan® (**)
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(*) Torlon®
Trademark
Solvay Belgium
(**)
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Trademark Gapi Italy
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Filled PTFE
 PTFE,
because of the properties previously described, is used in a very large
number of fields. Some of its properties can be improved and/or modified
by adding suitable fillers, allowing the use of PTFE in fields otherwise
precluded to this polymer. The treated PTFE is generally known as filled
PTFE. The fillers most commonly used are: glass fiber, carbon, bronze or
graphite, in the form of powder intimately mixed with the PTFE; other
fillers are: molybdenum bisulphide, metal powders, ceramics, metal oxides
and mixtures of two or more additives.
The addition of fillers to the
PTFE improves or modifies its properties depending upon the nature and
quantity of filler:
- remarkable increase in wear
resistance
- decrease of deformation
under load and of creep
- reduction of thermal
expansion
- some types of filler
increase the thermal and electric conductivity.
Filled PTFE is often not as
strong and resilient as virgin PTFE. The filler limits the resistance to
chemical agents and the electrical properties.
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