Paramyd® Paper
para-aramid paper
Paramyd® Paper is composed of para-aramid (poly-paraphenylene terepthalamide) for applications that require high strength and thermal stability. Primary applications include components for various end-uses that perform better and last longer than their alloy equivalents. When used as honeycomb cores in marine or aerospace applications, Paramyd® Paper offers lower overall weight, without compromising performance. Paramyd® Paper offers electrical insulating properties which make it an ideal choice for electrical components that require insulating interfaces. Finally, as an insulator Paramyd® Paper can inhibit galvanic corrosion between dissimilar materials such as metals and graphite composites.
I. Paramyd® Paper Type HK, For Honeycomb & Printing Wire Boards
| Type | 143HK | 205HK | 308HK | 410HK | |
| Thickness (mil) | 1.4 | 2.0 | 2.8 | 4.0 | |
| Thickness (mm) | 0.04 | 0.05 | 0.07 | 0.10 | |
| Basis Weight (g/m2) | 30.5 | 40.7 | 59.7 | 84.8 | |
| Density (g/m2) | 0.84 | 0.84 | 0.82 | 0.84 | |
| Tensile Strength (kn/m) | MD | 2.24 | 2.96 | 4.72 | 6.2 |
| CD | 1.96 | 2.31 | 4.32 | 4.52 | |
| Elongation (%) | MD | 1.09 | 1.42 | 1.88 | 1.71 |
| CD | 0.9 | 0.86 | 0.94 | 0.78 | |
| Elmendorf Tear Strength (mN) | MD | 795 | 937 | 715 | 1100 |
| CD | 959 | 959 | 934 | 1400 | |
| Type | 143EKT | 205EKT | 308EKT | |
| Thickness (mil) | 1.4 | 2.0 | 2.8 | |
| Thickness (mm) | 0.04 | 0.05 | 0.07 | |
| Basis Weight (g/m2) | 30.5 | 42.5 | 64.5 | |
| Density (g/m2) | 1.04 | 0.95 | 0.92 | |
| Tensile Strength (kn/m) | MD | 3.2 | 4.12 | 5.61 |
| CD | 2.65 | 3.65 | 4.98 | |
| Elongation (%) |
MD
CD
|
2.3 | 2.75 | 2.9 |
| 1.9 | 2.53 | 2.2 | ||
| Elmendorf Tear Strength (mN) |
MD CD |
600 | 700 | 1220 |
| 700 | 780 | 1325 | ||
| Breakdown Voltage (kV) | 0.7 | 1.09 | 1.2 | |
| Dielectric Strength (kV/mm) | 14 | 19 | 22 | |
| Dielectric Constant | 3 | 3 | 3 | |
| Dissipation Factor | 0.03 | 0.03 | 0.03 | |
| Voltage Resistance (Ω.m) | 6.76 x 102 | 6.76 x 102 | 6.76 x 102 | |
For 2 mill = 1,500 m (1,640 yrds); 1,300 m (1,420 yrds)
For 3 mil = 800 m (875 yrds); 850 m (930 yrds)