- Melting point: PPS-280 ℃, PEEK-340 ℃;
- Tensile strength: PPS-105 Mpa, PEEK-115Mpa;
- Rockwell hardness: PPS-M100, PEEK-M105;
Difference between PPS and PEEK
The main differences between PPS machining and PEEK are in terms of temperature resistance and toughness.
The long-term temperature resistance of PEEK is 260 degrees, and the long-term use of PPS is 220 degrees.
In addition, whether it is pure resin or glass fiber modified, the elongation at break of PPS is smaller than PEEK. Although there are some special grades of PPS, the toughness can exceed PEEK, but the overall strength has decreased.
Generally, PPS is most commonly added with 40% glass fiber. Compared with pure PEEK machining: