Engineering plastics – The Manual - F.wood-supply.dk

CH 3
N
m
O
CH 3
n
100
F
C
F
F
C
F
n
PPO > PPE?
80
PTFE
60
40
S
n
PPS Structural formula PPS
• Stress [MPa]
20
H F
0
C C
0 5n
10 15
20
• Strain [%] H F
TECATRON GF 40
TECATRON PVX TECATRON PVX
TECATRON PVDF GF40
TECATRON
PPS (DIN designation)
Polyphenylenesulphide (PPS) is a semi-crystalline, high
temperature thermoplastic polymer. Its chemical structure
makes PPS a highly resistant polymer with high strength
and hardness, even in the upper temperature ranges. In
addition to low water absorption, it also has good dimensional
stability and excellent electrical properties. PPS is
chemically very stable even at high temperatures. In the
field of semi-finished products, PPS is almost exclusively
available in the marketplace in fibre-reinforced form.
Properties
ˌˌHigh crystallinity
ˌˌHigh density
ˌˌHigh strength, hardness and rigidity
ˌˌHigh thermal stability
ˌˌVery high chemical resistance,
even at low temperatures
ˌˌExcellent solvent resistance
ˌˌHydrolysis-resistant, not sensitive to stress cracking
ˌˌVery low moisture absorption
ˌˌMinimal thermal expansion
ˌˌHighly dimensionally stable in a fibre-reinforced
version
ˌˌHigh radiation resistance to gamma and X-rays
ˌˌVery good electrical insulation properties
ˌˌLow ionic contamination in special types
ˌˌInherently flame resistant, self-extinguishing
Values
TECATRON TECATRON GF40
(PPS)
(PPS GF)
T g 97 °C 93 °C
Density 1.36 g/cm 3 1.63 g/cm 3
Modulus of elasticity 4,100 MPa 6,500 MPa
Service temperature, long-term 230 °C 230 °C
Service temperature, short-term 260 °C 260 °C
Lower service temperature –20 °C –20 °C
(increasing brittleness)
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