Fortron PPS Product Brochure (B240) - Hi Polymers

Fortron ®
Polyphenylene sulphide (PPS)
1. Introduction
Fortron ® is a linear, partially crystalline polyphenylene
sulphide. A phenylene ring and sulphur atom
form the backbone of the macromolecule and give
Fortron a number of unusual properties [1], [2]:
– continuous service temperatures up to 240°C,
short-term exposure up to 270°C,
– inherently flame-retardant (UL 94: V-0, some
grades 5 VA),
– very good chemical and oxidation resistance,
– high hardness and rigidity,
– very low water absorption,
– low creep, even at elevated temperatures.
This combination of properties places Fortron in the
category of a high-performance thermoplastic.
Fortron is suitable for the manufacture of mouldings
with good mechanical properties and thermal
stability.
The most important applications for Fortron are in
the electrical and electronics industries (e. g. plugs and
multipoint connectors, bobbins, relays, switches,
encapsulation of electronic components). Fortron is
being employed increasingly in the automotive industry
(air intake systems, pumps, valves, gaskets, components
for exhaust gas recirculation systems).
Fortron is also used to produce components for
mechanical and precision engineering.
2. Grades, supply forms,
colour range,
quality management
Fortron is supplied in powder and pellet form. The
current range of grades is described in section 2.1.
By compounding Fortron with glass fibres and glass
fibre/mineral filler blends, its rigidity, strength and
heat resistance can be considerably increased.
The Fortron range includes extrusion and injection
moulding grades with different types and levels of
additive and different melt viscosities. Specially
easyflowing grades 1140L6, 4184L6, 6850L6 and
6165A6 are available for thinwalled mouldings with
unfavourable flow length/wall thickness ratios. Their
properties are comparable with those of the corresponding
grades with medium viscosity.
The powder grades offer a variety of possibilities for
use in powder technology, e. g. as heat-resistant
binders or additives in PTFE compounds.
The unreinforced pellet grades are used mainly for
fibre manufacture (monofilaments and multifilaments)
and for special applications in extrusion
(e. g. pipes, semi-finished products, films). Section 2.1
provides an overview.
The range of grades is currently being expanded.
Further details are available on request.
For many components exposed to high service stresses,
Fortron is the preferred alternative to light-metal
alloys, thermosets and many other thermoplastics.
® = registered trademark
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