This product resulted from the polycondensation of aryl polyamic ester at specific operating conditions offers remarkable electric insulating characteristics, excellent heat-resistance H grade and high adhesion strength, good chennical stability after curing, widely used in bonding of the conductors of motor coils and the other respects.
Item No | Specifications | Unit | Technical Index | |
1 | Appearance | —— | yellow brown trans-parent liquid,no mechancal impurities | |
2 | Solid content(200±2℃,2h) | % | 18-20 | |
3 | Viscosity(4#viscosimeter,200±1℃) | S | 15-25 | |
4 | Acid value | mg NaOH/g | ≤20 | |
5 | Volume resistivity | Normal | Ω.m | ≥1.0×1010 |
dipped in water for 24h | ≥1.0×108 | |||
6 | Power frequency intensity | Normal | MV/m | ≥100 |
dipped in water for 24h | ≥60 | |||
7 | Adhessive strength | N | ≥150 | |
8 | Storage period (below 30℃) | 月 | ≤6 |