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

H
C
H
O
n
40
H
C
H
H
C
n
POM-H
30
PS
20
H H
C C
n
H CH 3
PP Structural formula PP
• Stress [MPa]
10
0
CH
O
3
C
O S
O
0 40 80 120
160 n
• Strain [%]
CH 3 O
TECAFINE PP
TECAFINE PSUPP
N
m
TECAPRO MT
CH
TECAFINE
3
PP
O
CH 3
n
F
C
F
F
C
F
n
PPO > PPE?
PP (DIN designation)
Polypropylene (PP) is a thermoplastic manufactured by the
catalytic polymerization of propene. Polypropylene belongs
to the group of polyolefines.
Polypropylenes (PP) are universal standard plastics with
well-balanced properties. The Ensinger semi-finished product
portfolio contains two main types of polypropylene:
TECAPRO MT and TECAFINE PP.
PPS
S
n
PTFE
Properties
ˌˌSemi-crystalline
ˌˌLow density < 1 g/cm³
ˌˌHigh degree of toughness
ˌˌBetter strength, hardness and rigidity than PE
ˌˌVery high chemical resistance
ˌˌVery low Hmoisture F absorption
ˌˌNo stress Ccrack C
n formation
H F
ˌˌImproved thermal stability compared to PE
ˌˌAnti-adhesive properties
PVDF
ˌˌHigh thermal expansion
ˌˌLow application range in minus temperature range,
sensitive to impact
Values
TECAPRO MT TECAFINE PP
(PP)
(PP)
T g –10 °C –18 °C
Density 0.92 g/cm 3 0.91 g/cm 3
Modulus of elasticity 2,000 MPa 1,600 MPa
Service temperature, long-term 100 °C 100 °C
Service temperature, short-term 100 °C 130 °C
Lower service temperature –10 °C –10 °C
16