KNK Polyimide-Nomex®-Polyimide Flexible Laminates
Description
KNK Polyimide-Nomex®-Polyimide Flexible Laminates is a triple-layer combined flexible insulation material, consisting of DuPont Nomex® Paper covered on both sides with polyimide film.
KNK exhibits very good electrical strength, high thermal resistance as well as excellent mechanical properties at elevated operating temperatures. It has a smooth surface which allows a trouble free manufacture of low voltage motors where coil inserting machines are used.
Application:
KNK is mainly used as a slot liner, slot closure, phase-to-phase and turn-to-turn insulation in low or medium voltage electrical motors of Class H up to Class N (180¡æ to 200¡æ) insulation system. In addition, it is also used as interlayer insulation in transformers and other electrical machines and appliances.
Technical Data:
Structure |
Unit |
KNK Typical Value |
N222 |
N333 |
N373 |
Nominal Thickness |
mm |
0.17 |
0.25 |
0.35 |
Tolerance |
mm |
¡À0.02 |
¡À0.03 |
¡À0.04 |
Grammage |
g/m2 |
215 |
305 |
420 |
Polyimide Film |
mm |
0.05 |
0.075 |
0.075 |
Nomex® Paper |
mm |
0.05 |
0.08 |
0.18 |
Polyimide Film |
mm |
0.05 |
0.075 |
0.075 |
Tensile Strength |
MD |
N/cm |
155 |
270 |
430 |
TD |
N/cm |
130 |
220 |
320 |
Elongation |
MD |
N/cm |
12 |
12 |
12 |
TD |
N/cm |
10 |
10 |
10 |
Breakdown Voltage |
KV |
10 |
14 |
18 |
Thermal Class |
¡æ |
200 |
Sheets: approx.1000X914mm
Tapes: widths starting from 5mm
Rolls: 3 inch (76mm) Core, max width 914mm, approx. 50kg
¡ù Special thickness or combinations can be supplied per customer's request.
Note: The technical information, data, recommendations, and other statements provided are based on tests or research which we believe to be reliable, but such information shall in no event constitute a warranty of any kind by Liren. Before using this product, all purchasers should carefully evaluate its suitability for their intended applications. Nomex® & Kapton® are registered trademarks of DuPont.