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TUBULAR HEADER CORE MATERIALS
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® System3 incorporates the use of a thermoplastic core
material (made by Tubus Bauer) the core is tubular in construction
and can be supplied in many different core weights and primarily
comes in 4 or 6 mm cell sizes. The core is cut to thickness and can be
as thin as 3 mm. The unique properties of the core mean that there is
no ribbon direction in the core. It is made from GE Ultem ® PEI polymer
and this gives it excellent fi re properties.
The concept behind TenCate Cetex ® System3 is three thermoplastic
materials, one system. Combining the TenCate Cetex ® The thermoplastic adhesive SHARNET SN4275 gives excellent results
when heated to 150
facing skins
with the Tubus tubular core with a thermoplastic fi lm adhesive allows
structures to be manufactured quickly and effi ciently without altering
the high level of surface fi nish already established in the skin material.
This in itself allows for minimal preparation work later on if any in
some instances.
oC and this temperature is not suffi cient to alter
the surface of the skin material. Bonding can be achieved in a matter
of minutes compared to hours for thermosets and the peel numbers
achieved are excellent. This process is utilised in the manufacture of
premium aircraft fl ooring by WJ Tods and achieves very durable light
weight fl ooring solutions for aircraft.
4
Core options
AEROSPACE COMPOSITES
PEI 4,0-48C PEI 4,0-75 C PEI 4,0-100 C PEI 4,0-120 C PEI 4,0-144 C
Properties METRIC IMPERIAL METRIC IMPERIAL METRIC IMPERIAL METRIC IMPERIAL METRIC IMPERIAL
Cell size 4.2 mm 1/8” 4.2 mm 1/8” 4.2 mm 1/8” 4.2 mm 1/8” 4.2 mm 1/8”
Density
Compressive strength
Compressive modulus
Shear strength
Shear modulus
48
kg/m3 3 lb/ft3 75
kg/m3 0.95
mpa
106
mpa
0.65
mpa
12.2
mpa
137 psi
15.36 ksi
94 psi
2.95
mpa
178.5
mpa
1.3
mpa
4.6
lb/ft 3
100
kg/m 3
6.24
lb/ft 3
427 psi 4.6 mpa 603 psi
25.8 ksi 222.8 mpa 32.3 ksi
188 psi
1.6
mpa
232 psi
1.76 ksi 26 mpa 3.76 ksi 27 mpa 3.91 ksi
120
kg/m 3
6.34
mpa
276.1
mpa
2.1
mpa
32
mpa
7.49
lb/ft 3
919 psi
40 ksi
Tubus-PEI core
Thermoplastic
adhesive 60 gsm
144
kg/m 3
10.71
mpa
339.6
mpa
9 lb/ft 3
1552 psi
49.2 ksi
304 psi 3.3 mpa 478 psi
4.64 ksi
40
mpa
5.79 ksi
TenCate Cetex ® facing skins