PPS(Polyphenylene sulfide) is a semi-crystalline high performance thermoplastic with optimised tribological properties for demanding bearing and friction requirements. The molecular structure of PPS is comparatively simple, and the main molecular chain is alternately arrayed by benzene rings and sulfuratoms, lots of rings and sulfur and sulfuratoms supplies PPS with the rigidity resistance as well as the pliancy resistance. The inner symme trical molecular structure makes PPS easily crystal, non-polarity, good electrical resistance and low water absorption and so on.PPS is widely used in precision and chemical engineering, plant construction, aircraft and aerospace industry.
Glass fiber reinforced polyphenylene sulfide
Glass fiber (GF) is a kind of inorganic non-metallic reinforcement material with excellent performance, and its variety is wide and its price is low. It has the advantages of high mechanical strength, good insulation performance, corrosion resistance, high temperature resistance and so on. Adding glass fiber to the material can improve the mechanical properties of the material and significantly improve its performance. With the research and development of glass fiber modification, glass fiber reinforced PPS composite has made new development on the basis of traditional and conventional, mainly manifested in the continuous increase of glass fiber content, the maximum content of GF in the injection molding process can exceed 60%, but also to maintain good processing fluidity and products have good surface finish.
property |
item no |
unit |
value |
1 |
density |
g/cm³ |
1.43 |
2 |
water absorption (23ºC in air) |
% |
0.03 |
3 |
tensile strength |
Mpa |
75 |
4 |
tensile strain at break |
% |
5 |
5 |
compressive stress (at 2% nominal strain) |
Mpa |
55 |
6 |
charpy impact strength (unnotched) |
KJ/m² |
25 |
7 |
charpy impact strength (notched) |
KJ/m² |
3.5 |
8 |
tensile modulus of elasticity |
Mpa |
3700 |
9 |
ball indentation hardness |
N/mm² |
180 |
10 |
rockwell hardness |
-- |
M84 |