High Strength and Corrosion Resistance Aramid Honeycomb Core For
Aerospace Industry
High Strength and Corrosion Resistance Aramid Honeycomb Core For
Aerospace Industry is a kind of phenolic resin impregnated
honeycomb structure, it is an ideal core material, especially
suitable for the structure with high intensity and light
weight.Aramid paper honeycomb with dupont Nomex ® paper as raw
materials, it is produced by coating, folding, expanding and
wetting-out.
Features:
Excellent resistance to high temperature, therefore the core can be
used at a temperature more than 200 ℃ for the process of autoclave;
The density range is ranging widely from 29-160 kg/m3 to meet
different capacity structure requirements;
It has extremely high shear strength, especially compared with foam
core material, which is more suitable for use in light structure.
High toughness, high resistance to damage compared with other
honeycomb core materials;
Fire retardant, low smoke, low toxicity (in line with the most
stringent flame retardant and smoke standard of aviation);
Excellent creep and fatigue properties, can be used for the medium
and long term.
High humidity strength, can be used in high humidity environment;
Easy to process, reduce production cost;
Corrosion resistant (not corroded by moisture or other medium that
is in contact with it, nor can it electrochemically react with
carbon fiber, like a metal honeycomb);
Superior insulation sound insulation, compared metal and glass
fiber materials;
Under the same weight, have better thermal insulation and sound
insulation performance, more comfortable and energy conservation
and environmental protection;
It is easy to process, and it is more convenient to operate than
the metal honeycomb.
Mechanical Properties of the Nomex Honeycomb Core
| Size of honeycomb cell (mm)) | Density (Kg/ m3) | Plain compressive strength(MPa) | Plain shear properties(Mpa) |
| Pure core material | Sandwich structure | Strength | Modulus |
| L | W | L | W |
1.83 | 48 | 1.8 | 2.28 | 1.38 | 0.79 | 88 | 45 |
| 64 | 3.12 | 3.83 | 1.81 | 1.11 | 100 | 57 |
2.75 | 32 | 0.92 | 1.0 | 0.79 | 0.46 | 66 | 32 |
| 48 | 2.1 | 2.33 | 1.48 | 0.86 | 121 | 54 |
| 72 | 3.93 | 4.26 | 2.62 | 1.45 | 151 | 65 |
Mechanical Properties of the Nomex Honeycomb Core 2
| Core type | Density
( kg/m3) | Stab.comp.str (Mpa) | L Shear Properties(Mpa) | W Shear Properties(Mpa) |
| Strength | Modulus | Strength | Modulus |
| Typ | Min Ind | Typ | Min Ind | Typ | Min Ind | Typ | Min Ind | Typ | Min Ind |
| 3.2-29 | 29 | 0.77 | 0.60 | 0.56 | 0.47 | 25.9 | 17.4 | 0.35 | 0.30 | 14.5 | 11.3 |
| 3.2-48 | 48 | 2.35 | 1.92 | 1.22 | 1.03 | 44.5 | 34.5 | 0.73 | 0.61 | 27.1 | 20.9 |
| 3.2-64 | 64 | 3.88 | 3.22 | 1.72 | 1.55 | 61.0 | 54.0 | 0.99 | 0.82 | 34.0 | 25.0 |
| 3.2-80(E) | 80 | 6.67 | 4.49 | 1.92 | 1.65 | 66.1 | 52.3 | 1.20 | 0.97 | 43.9 | 36.3 |
| 3.2-80 | 80 | 5.19 | 4.69 | 2.22 | 1.95 | 71.0 | 64.0 | 1.23 | 1.05 | 38.4 | 34.0 |
| 3.2-96(E) | 96 | 8.99 | 8.78 | 2.49 | 2.25 | 82.8 | 77.5 | 1.73 | 1.67 | 59.1 | 55.5 |
| 4.8-40 | 40 | 1.63 | 1.46 | 0.95 | 0.92 | 38.0 | 36.3 | 0.55 | 0.52 | 23.9 | 22.5 |
| 4.8-48 | 48 | 2.45 | 1.86 | 1.24 | 1.02 | 41.3 | 34.0 | 0.77 | 0.60 | 30.0 | 18.0 |
| 4.8-72 | 72 | 5.28 | 4.60 | 1.70 | 1.32 | 57.1 | 47.5 | 1.09 | 0.80 | 40.5 | 23.2 |
| 4.8EX-48 | 48 | 2.20 | 1.80 | 0.79 | 0.62 | 20.6 | 16.1 | 0.87 | 0.72 | 42.0 | 34.0 |
Application:
Aramid honeycomb core is mainly used in aerospace, rail transit,
ship craft and other fields.
