No | Property | unit | Standard | |
1 | Thickness Tolerance | % | <5.0 | |
2 | Apparent density | g/cm3 | 1.15-1.35 | |
3 | Bending Strength | Machine direction | Mpa | ≥100 |
Cross machine direction | ≥85 | |||
4 | Shrinkage | Machine direction | % | ≤0.4 |
Cross machine direction | ≤0.6 | |||
Thickness direction | ≤4.0 | |||
5 | compressibility | % | ≤3.0 | |
6 | Compressibility recoverable part | % | ≥60 | |
7 | Oil absorption rate | % | ≥5.0 | |
8 | Electric conductivity water extract | Ms/m | ≤10 | |
9 | PH water extract: | / | 5.0-8.0 | |
10 | Voltage resistant strength (In oil) | Kv/mm | ≥8.0 | |
11 | Moisture content | % | ≤5.0 | |
12 | Tolerance(mm) | Thickness T | ±5%(T≤12) | |
±4%(T>12) | ||||
Length L | ±15 | |||
Width B | ±15 |