PPS (Polyphenylene Sulphide) Properties
What is PPS?
Polyphenylene Sulphide (PPS) is a high performance thermoplastic with remarkable chemical and mechanical properties. Known for its high temperature resistance, chemical resistance and excellent electrical insulation properties, PPS has a wide range of uses in various industrial applications. Thanks to its crystalline structure, PPS is a durable material that can cope with thermal and chemical challenges. It also offers advantages such as low water absorption rate, high dimensional stability and good abrasion resistance.
In this article, we will take a closer look at the highlights of PPS and examine why this material is widely used in different industries.
Key Properties of PPS
The most well-known properties of PPS include high temperature resistance, chemical resistance and mechanical robustness. Here are some of the technical highlights of PPS:
High Temperature Resistance
One of the most remarkable properties of PPS is its resistance to high temperatures. PPS can maintain its properties at continuous temperatures up to 200°C and can be used safely in applications exposed to high temperatures. For example, engine components in industries such as automotive and aerospace require materials that can last for long periods of time even under thermal stress. PPS offers excellent durability against these harsh conditions.
Chemical Resistance
PPS shows high resistance to most organic solvents, acids and bases. Therefore, it exhibits long-lasting and reliable performance in environments exposed to chemicals. In the chemical and petroleum industry, it is common to use PPS in components that come into contact with corrosive substances such as acids and bases. Furthermore, this superior chemical resistance of PPS makes it indispensable in the manufacture of parts such as valves, gaskets, pipes and pumps.
Electrical Insulation Properties
PPS has excellent electrical insulation properties. This makes it a material of choice for electronic components and electrical systems. Its electrical insulation properties allow it to operate safely even under high voltage. Its low electrical conductivity allows it to be used in many electrical components such as circuit boards, connectors and sensors. At the same time, its low coefficient of thermal expansion ensures stability in electronic components requiring high precision.
High Mechanical Strength
PPS is also very impressive in terms of mechanical durability. With properties such as high hardness, strength and wear resistance, PPS can be used safely even in demanding mechanical applications. PPS is an ideal material in environments where parts must be resistant to friction and abrasion. Thanks to these properties, it is widely preferred in sectors that require heavy loads and harsh working conditions such as automotive, aerospace and defence industries.
Low Water Absorption Rate
One of the most advantageous aspects of PPS is its low water absorption rate. It retains its dimensional stability when exposed to water or moisture, which allows the material to perform consistently over long periods of time. For parts operating in humid environments, PPS offers a stable material that does not change in size. Therefore, it is also ideal for marine and outdoor applications.
Easy Workability
PPS is a very useful material in moulding and machining processes. It can be shaped by various production methods such as injection moulding and extrusion. Although it can withstand high temperatures, it is very easy to process, which reduces production costs. The fact that parts can be easily produced and shaped allows PPS to be used in a wide range of applications.
Use of PPS in Various Industries
These properties of PPS make it an indispensable material for many industries.
Automotive Industry
One of the most preferred properties of PPS in the automotive industry is its resistance to high temperatures. Components such as engine parts, valves and fuel systems are manufactured from this material. In addition, the chemical resistance and mechanical durability of PPS also ensure that automotive parts are long-lasting and reliable.
Electronic and Electrical Industry
Thanks to its electrical insulation and thermal resistance, PPS is also widely used in electronic devices. Many components such as circuit boards, sensors and various electrical connectors are manufactured from PPS.
Chemical and Petroleum Industry
The chemical resistance of PPS makes it an excellent choice for equipment in contact with acids and bases. In valves, seals and pipework, this material is favoured for its chemical resistance and long service life.
