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Polypropylene honeycomb is mainly used as core in
composite panels, as reinforcement and as means to lighten structures. The
honeycomb is closed on its both sides with a thermo-welded tissue. In case of
bending the strain is transferred by the honeycomb core. That is why the strain
is shared out in shear and compression over laminates.
Honeycomb core’s properties
|
|
PP8-80 |
|
|
Natürel |
|
Cell size
mm |
8 |
|
Density (Kg/m3
) |
80-90 |
|
Compressive
strength MPa DIN 53421 |
2.0 |
|
Compressive
modulus MPa DIN 53421 |
97 |
|
Shear
strenght MPa DIN 53294 |
0.55 |
|
Shear
modulus MPa DIN 53294 |
12,8 |
|
Effective
temperature range °C |
-30--+80 |
|
Thermal
conductivity W/mK 10° |
0.102 |
|
Sound
reduction factor 50 - 4.000 Hz |
22dB |
|
Water
absorption max |
0.10% |
|
Flammability |
Normal |
|
Thickness
mm PP 8-80 |
5 -90,
maks 450 |
|
Thickness
mm: PP 8-80 T30 * (PP8-80+veil ) |
8-65 |
|
Standard
dimension |
120cm*250cm |