phenolic cotton cloth laminate Properties
|
Properties
|
Unit
|
3025
|
3025B
|
3025C
|
|
Flexural strength perpendicular to lamination
≥
|
MPa
|
100
|
90
|
70
|
|
Notch impact strength parallel to lamination charpy
≥
|
KJ/m2
|
8.8
|
—
|
—
|
|
Bonding strength ≥
|
N
|
—
|
5500
|
5500
|
|
Dielectric strength perpendicular to lamination
（in oil 90±2℃） ≥ |
MV/m |
0.82 |
2.0
1.5-2mm |
2.0
1.5-2mm |
|
Breakdowm voltage parallel to lamination
（in oil 90±2℃) ≥ |
KV
|
1
|
—
|
—
|
|
Relative dielectric coefficient ≤
|
—
|
—
|
—
|
—
|
|
Insulation resistance after impregnated in water
≥
|
Ω
|
1×106
|
—
|
—
|
|
Water absorption
1mm ≤ |
mg
|
206
|
—
|
—
|
|
Colour
|
—
|
Natural or black
|
||
|
Reference standard
|
—
|
JB/T 8149.2-2000 | Enterprise's standards | |
|
Characteristics & Applications
|
Primarily intend for mechanical applications. Not recommended to use
for
electrical applications. 3025B and 3025C not stronger than 3025, but more economical than 3025, similar to NEMA's C grade. |
|||
The size : 980×1980 mm, 1020×2040 mm，1020x1220mm, 1220x2470mm
You are warmly welcome to raise your special requirement, so as to make design and studies in special in order to produce more qualified new type laminated sheet