PTFE Resin / PTFE Suspension Powder / 90-120um size / Moulding
Everflon® PTFE Suspension Powder M series is a white powder with a small
particle size. The small particle size of Everflon® PTFE M40&90 helps to minimize voids, even at relatively low
molding pressures. Its most unique feature is the irregular,
fibrous character of the particles. The fibrous particles promote
good capture and uniform distribution of inorganic fillers when
they are added to modify the mechanical properties of moldings. It
offers an excellent combination of properties that are
characteristic of Everflon® fluoroplastic resins.
Data List of Everflon PTFE Molding Powder M120
|Average Partical Size||um||D2116||90-120|
PTFE is composed of polytetrafuluoroethylene, the most commonly
used fluoroploymer. PTFE has a very long chain molecular structure
in which all of the hydrogen atoms of polyethylene are replaced by
PTFE is superior in heat resistance and chemical resistance
compared with the other plastics. These properties result from
stable chemical structure consisting of only carbon and fluorine
atoms with the highest electro negativity.
PTFE M-series is a granular powder for compression molding. As melt
viscosity is extremely high, it cannot be used for molding applied
to general plastic. Therefore basically at first it is compressed
in the mold and is fused by sintering over its melting point.
Various molding methods are developed.
Main Application of Everflon PTFE Molding Powder M40
Main Processing Way of Everflon PTFE M40
Everflon® PTFE M usually is processed in two steps: preforming and
The powder is first compacted into a preformed shape approximating
that of the desired molding. A precise
heating (sintering) and cooling cycle is then used to consolidate
the molding at temperatures above the crystalline melting point of
the neat powder.
The properties of a finished molding are dependent on perform
pressure, sintering time and temperature, and cooling rate.
The details please visit www.everflon.com.
Properties of Everflon PTFE Resins
Everflon® PTFE Suspension Powder is preferred for moldings requiring optimum
mechanical and electrical properties. Its low bulk density limits
the size of moldings from a given mold or press opening. It is
often preferred for making filled compounds, especially with metal
powders that are difficult to mix because of density differences.
Everflon® PTFE Suspension Powders’ preforming is easiest when the resin is
uniformly between 21–27 °C (70–80 °F). As temperatures decline
below this range, the resin will be increasingly difficult to mold
without cracks and problems with condensed moisture. Higher
temperatures inhibit flow and promote lumping.
Storage conditions should be set accordingly. Cleanliness is a
critical requirement for successful use of Everflon® PTFE Suspension Powder. The white resin and high sintering
temperatures cause even small foreign particles to become visible
in finished moldings. Keep resin drums closed and clean. Good
housekeeping and careful handling are essential.