Product Details:
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| Material: | Para-Aramid Paper | Foil Thinkness: | 0.05, 0.06 Or 0.076 Mm |
|---|---|---|---|
| Cell Size: | 2, 3, 5, 8 Mm | Hardness: | H18 |
| Height: | Customized | Product Name: | Nomex Honeycomb Core |
Low Dielectric Aramid Honeycomb Core Radar Antenna Radome Structure
The Low Dielectric Aramid Honeycomb Core Radar Antenna Radome Structure is an advanced composite sandwich construction engineered to provide superior electromagnetic transparency, structural rigidity, and environmental protection for high-performance radar and antenna systems. Based on an A-type (A-sandwich) configuration, this structure utilizes a low-dielectric honeycomb core bonded between thin, high-strength composite skins, creating an optimal balance between mechanical integrity and electrical performance.
Key Features
· Low Dielectric Constant & Loss Tangent: The aramid honeycomb core exhibits a dielectric constant typically below 1.50, minimizing signal attenuation and ensuring efficient electromagnetic wave transmission across broadband frequencies.
· Excellent Radar Transparency: Specifically engineered to act as an electromagnetic window, the structure introduces minimal insertion loss (typically < 1 dB in C-band configurations), preserving the fidelity of radar signals.
· Ultra-Lightweight & High Stiffness: With a density range of 24–144 kg/m³, the aramid honeycomb core is over 30% lighter than equivalent aluminum honeycomb at equal stiffness. This reduces overall system weight without compromising structural load-bearing capacity.
· Superior Mechanical Performance: The sandwich structure offers high specific strength and excellent impact resistance. Unlike brittle materials, aramid honeycomb exhibits progressive crushing behavior, avoiding large-area delamination and maintaining structural integrity under stress.
· Environmental Durability: The material is inherently corrosion-resistant, fatigue-resistant, and flame-retardant (self-extinguishing). It maintains stable performance across a wide temperature range from -55°C to +180°C, making it suitable for harsh aerospace and marine environments.
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.