Extremely High Strength Para-Aramid Honeycomb Core For High End
Application
Extremely High Strength Para-Aramid Honeycomb Core For High End
Application is Kevlar® para-aramid fiber nomex honeycomb core, an
extremely lightweight, high strength, non-metallic honeycomb
manufactured with para-aramid fiber paper (DuPont Kevlar® N636 or
equivalent) impregnated with a heat resistant phenolic resin. This
core material exhibits improved performance characteristics over
Nomex® and Korex® in the areas of weight, strength, stiffness and
fatigue.
Features:
• Maxinum 40% higher performance than equivalent density Nomex®
honeycomb core
• Extremely high ratio of strength-to-weight
• Excellent performance of thermal and moisture stability
• Improved shear strength and modulus
• Conforms to stringent smoke, toxicity and flammability standards
• High toughness
The Regular Features Can Be Achieved:
1. Excellent resistance to high temperature, therefore the core can
be used at a temperature more than 200 ℃ for the process of
autoclave;
2. The density range is ranging widely from 29-160 kg/m3 to meet
different capacity structure requirements;
3. It has extremely high shear strength, especially compared with
foam core material, which is more suitable for use in light
structure.
4. 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);
5. Excellent creep and fatigue properties, can be used for the
medium and long term.
6. High humidity strength, can be used in high humidity
environment;
7. Easy to process, reduce production cost;
8. 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);
9. Superior insulation sound insulation, compared metal and glass
fiber materials;
10. 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:
Extremely High Strength Para-Aramid Honeycomb Core For High End
Application is a high performance non-metallic core which can
replace fiberglass and Nomex® honeycomb core materials to achieve
significant weight reductions without sacrificing performance in
most applications. para-aramid fiber honeycomb uses include boat
decks, aircraft galleys, flooring, partitions, aircraft leading and
trailing edges, radomes, flaps, access panels and doors.
