PPS: the chemically resistant high-temperature plastic
We offer a wide range of high-quality plastic materials, and one of the most interesting is PPS. This plastic is known for its exceptional chemical resistance, high temperature resistance and good dimensional stability. But what makes PPS so special, and what are its typical applications?
One of the most notable properties of PPS is its chemical resistance. It can withstand most chemicals, including acids, bases and solvents. This makes it an excellent choice for applications where chemical exposure is a problem. But how does it work in practice? Can PPS really withstand all chemicals, or are there exceptions?
Chemical resistance and high-temperature resistance
PPS has a very high chemical resistance, which can almost be considered universal. It can withstand most chemicals, including acids such as sulfuric acid and nitric acid, as well as bases such as sodium hydroxide. Additionally, it can withstand solvents such as acetone and dichloromethane. This makes it an excellent choice for applications where chemical exposure is a problem, such as in chemical manufacturing and purification.
In addition to its chemical resistance, PPS also has a very high temperature resistance. It can be used continuously at temperatures up to 220°C, and can also withstand short-term temperature peaks up to 250°C. This makes it an excellent choice for applications where high temperatures are present, such as in the automotive and aerospace industries.
Dimensional stability and flame retardancy
PPS also has a very good dimensional stability, which means that it does not change shape or size significantly when exposed to chemicals or high temperatures. This is important in applications where precision and accuracy are crucial, such as in precision machines and instruments.
In addition to its dimensional stability, PPS also has an inherent flame retardancy, which means that it does not burn or release toxic gases when exposed to fire. This makes it an excellent choice for applications where fire safety is a requirement, such as in the aerospace and defense industries.
Applications and comparison with PEEK
PPS is used in a variety of applications, including chemical manufacturing and purification, the automotive and aerospace industries, as well as in precision machines and instruments. It is also a popular choice for applications where high temperatures and chemical exposure are present, such as in the oil and gas industry.
But how does PPS compare to other high-temperature plastics, such as PEEK? PEEK is a high-performance plastic that also has a very high chemical resistance and temperature resistance. But PEEK is often more expensive than PPS, and can be more difficult to process and shape. PPS is therefore a good alternative for many applications, where PEEK is not necessary.
If we compare the two plastics, we can see that PPS has a slightly lower temperature resistance than PEEK, but a higher chemical resistance. PPS also has a lower density than PEEK, which can be an advantage in some applications. But which plastic is best suited for a particular application, depends on the specific requirements and conditions.
We can ask ourselves, what makes PPS so attractive to manufacturers and designers? Is it its exceptional chemical resistance, or its high temperature resistance? Or is it perhaps the combination of these properties, which makes it an excellent choice for so many applications?
Properties and specifications
We offer PPS in a variety of forms and sizes, including plates, rods and tubes. It can also be processed and shaped using standard tools and methods, such as milling, drilling and welding.
- Chemical resistance: withstands most chemicals, including acids and bases
- Temperature resistance: continuous use up to 220°C, short-term peaks up to 250°C
- Dimensional stability: good shape and size stability when exposed to chemicals and high temperatures
- Flame retardancy: inherent flame retardancy, without the addition of flame retardants
- Density: 1.3-1.4 g/cm³
- Shore hardness: 65 Shore D
If you want to know more about PPS and its possible applications, you are welcome to contact us. We can help you choose the right plastic for your needs, and give you advice on how to process and shape it.
We can also offer sample specimens and tests, so you can see and experience the properties of PPS. So do not hesitate to contact us, if you have any questions or concerns about PPS or other plastics.
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