PPE
Chemical Designation
Polypropylene either (modified)
DIN Abbreviation
PPE
Colour, Filler
Stock Availabilty
Main Characteristics
Preferred Fields
Applications
MECHANICAL
Properties
Unit
Test method
DIN ASTM
Density
g/cm3
53 479
1.06
Tensile strength/ yield
MPa
53 455
65
Tensile strength/ break
MPa
53 455
Elongation / break
%
53 455
40
Modules of elasticity/tension
MPa
53 457
2500
Modules of elasticity/flexure
MPa
53 457
Ball indentation hardness
MPa
53 456
140
Impact strength (charpy)
kJ/m2
53 453
no br.
Creep rupture strength /1000 hrs static load
MPa
Time yield 1% elongation/1000hrs
MPa
21
Coefficient of friction/ hardened & ground steel
-
0.4
Wear/ as above
mm/km
90
THERMAL
Properties
Unit
Test method
DIN ASTM
Crystaline melting point
ºC
53 736
Glass transition temperature
ºC
53 736
164
Heat distortion temperature Method A
ºC
ISO 75
130
Method B
ºC
ISO 75
138
Field33
Maximum service temperature short term
ºC
110
long term
ºC
85
Coefficient of thermal conductivity
W/(m.K)
0.22
Specific heat
J(g.K)
1.2
Coefficient of thermal expansion
10-5/K
6
ELECTRICAL
Properties
Unit
Test method
DIN ASTM
Dielectric constant at 105 HZ
53 483
2.6
Dielectric loss factor 105 HZ
S.cm
53 483
0.0001
Specific volume resistance
S
53 482
>100E+17
Surface resistance
53 482
Dielectric strength 1 mm
KV/mm
53 481
50
Tracking resistance
53 480
KA 1
MISCELLANEOUS
Properties
Unit
Test method
DIN ASTM
Moisture absorption
%
53 714
0.1
Water absorption at saturation at 23 §C
%
53 495
0.2
Resistance to hot water, washing soda
resistant
Flammibilty
UL 94
HB
Resistance to weathering
not resistant,
Compliance