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PMI (Polymethacrylimide) Foam for Radome Applications

PMI (Polymethacrylimide) Foam for Radome Applications

Overview Package size per unit product 25.00cm * 15.00cm * 0.50cm Gross weight per unit product 0.500kg Product Descript
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Description

Basic Info
Model NO. HF
Kind Hard Plastic Sheet
Tensile Strength 1.65
Density 50kg/M3
Elastic Modulus 75MPa
Elongation at Break 2.8 %
Flexural Strength 1.55MPa
Compressive Strength 0.83MPa
Bubble Cell Size 50-150um
Thermal Conductivity 0.030W/(M*K)
Transport Package Wooden Box
Specification 2500*1250 mm
Origin China
HS Code 392119
Packaging & Delivery
Package size per unit product 25.00cm * 15.00cm * 0.50cm Gross weight per unit product 0.500kg
Product Description

PMI foam HF has been specially developed for radome applications. It is characterized by a lower dielectric constant and dielectric loss in the wide frequency range of 2-18GHz, with a dielectric constant of 1.05-1.13. At the same time, PMI foam HF has a lower cell size, which helps to further reduce the amount of surface resin absorption, reduce the weight of the part, and improve the wave transmittance.For radar, radomes, miniature antennas, etc., PMI foam HF is suitable for autoclaves, RTM, VARI and most composite manufacturing processes such as molding, the molding process conditions can reach 180°C/0.1MPa.

Product Parameters
TypeUnits50HF75HFTest Method
Densitykg/m350±1075±10ISO 845
CompressiveStrengthMPa0.831.65ISO 844
TensileStrengthMPa1.65
2.20ASTM D638
ElasticModulusMPa75100ASTM D638
ElongationAt break%2.82.9ASTM D638
FlexuralStrengthMPa1.552.80ASTM D790
ShearStrengthMPa0.851.25ASTM C273
ShearModulusMPa2845ASTM C273
Thermal conductivityW/(m*K)0.0300.031-
CompressiveCreep%≤2.0GB/T 15048
Bubble cell sizeμm50-150ZKHT/MT-21
TemperatureResistanceºC≥200ºCDIN 53424
Product Size
HFSize(mm)Sheet thicknesses are available
50 HF2500*12501-120
75 HF2500*12501-100
Frequency[GHz]Dielectric constantsLoss tangent/e-003
50 HF75 HF50 HF75HF
2.41.071.083.923.65
2.81.071.083.613.43
3.31.071.083.293.13
3.91.071.082.83.05
4.61.071.082.872.97
5.31.071.082.82.75
6.11.071.082.52.42
6.81.071.082.262.18
7.21.071.082.332.4
8.61.071.082.262.3
10.21.071.082.162.23
12.01.071.081.71.72
13.91.071.081.981.89
15.81.071.081.891.85
Test equipment: Resonant cavity
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