Product Guide for Design Engineers - Quadrant

Advanced Engineering Plastics for Elevated Temperature Range
Techtron ® PPS
Polyphenylene Sulfi de [PPS]
The Techtron PPS family – based on the semi-crystalline polymer polyphenylene sulfi de – was developed to
close the gap both in performance and price between the standard thermoplastic materials [e.g. PA, POM,
PET] and the high-end advanced engineering plastics [e.g. PBI, PI, PAI, PEEK].
Main Characteristics
Very high maximum allowable service temperature in air [220 °C continuously, up to 260 °C for short
periods of time]
High mechanical strength, stiffness and creep resistance, also at elevated temperatures
Excellent chemical and hydrolysis resistance
Very good dimensional stability
Excellent wear and frictional behaviour [Techtron HPV PPS]
Physiologically inert [suitable for food contact]
Excellent resistance to high energy radiation [gamma- and X-rays]
Good UV-resistance
Inherent low fl ammability
Good electrical insulating and dielectric properties
Grades
Techtron ® PPS [PPS; natural (cream)]
This unfi lled polyphenylene sulfi de based material is ideal for structural applications in corrosive environments
or as a PEEK replacement at less demanding temperatures. Very good dimensional stability [minimal moisture
absorption and a low coeffi cient of linear thermal expansion], combined with easy machinability to close
tolerances, make Techtron PPS very well suited for precise tolerance machined components. This material is
generally not used for wear applications.
Additionally, the composition of the raw materials used for the manufacture of Techtron PPS stock shapes
complies with the regulations of the European Union [Directive 2002/72/EC, as amended] and the United
States of America [FDA Food Contact Notifi cation No. 40] for plastic materials and articles intended to come
into contact with foodstuffs.
Techtron ® HPV PPS [PPS + solid lubricant; deep blue - available as “Food Grade“, details see page 25]
As a reinforced, internally lubricated PPS grade, Techtron HPV PPS demonstrates an excellent combination
of properties including wear resistance, load-bearing capabilities and dimensional stability when exposed to
chemicals and high temperature environments.
Techtron HPV PPS is found in applications where PA, POM, PET and other plastics fall short or where PI,
PEEK and PAI are over-engineered and a more economical solution must be found.
Thanks to the uniformly dispersed internal lubricant, Techtron HPV PPS exhibits an excellent wear resistance
and a low coeffi cient of friction. It overcomes the disadvantages of virgin PPS caused by a high coeffi cient of
friction and of a glass fi bre reinforced PPS which causes premature wear of the counterface in moving-part
applications.
Techtron HPV PPS can be used in all kinds of industrial equipment such as industrial drying and food
processing ovens [bearings, rollers], chemical process equipment [pump-, valve & compressor components]
and electrical insulating systems and sliding parts.
Tech Notes:
From 100 °C onwards [above the glass transition temperature], the mechanical properties of Techtron HPV PPS drop off signifi cantly and the
coeffi cient of linear thermal expansion increases considerably. Ketron ® PEEK and Duratron ® PAI may be suitable alternatives to overcome
these inconveniences.
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