Product name: 3021 Phenolic paper laminated sheet
|
Serial number
|
Properties
|
Unit
|
Grade
|
|
|
3021
|
||||
|
1
|
Flexural strength perpendicular
to laminations
|
≥
|
MPa
|
120
|
|
2
|
Bonding strength
|
≥
|
N
|
3613
|
|
3
|
Dielectric Strength
Perpendicular to Laminations
(in 90±2°C transformer oil,
1mm in thickness)
|
≥
|
MV/m
|
3.1
|
|
4
|
Breakdown voltage parallel
to laminations(in 90±2°C
Transformer oil)
|
≥
|
kV
|
32
|
|
5
|
Permittivity
(1MHz)
|
≤
|
—
|
4.8
|
|
6
|
Dissipation factor
(1MHz)
|
≤
|
—
|
0.25
|
|
7
|
Insulation Resistance after
impregnated in water
|
≥
|
Ω
|
2.4×107
|
|
8
|
Density
|
|
g/cm3
|
(1.3-1.4)
|
|
9
|
Water absorption
(10mm in thickness)
|
≤
|
mg
|
300
|
|
10
|
Color
|
|
—
|
Coffee
|
|
11
|
Tensile strength
|
≥
|
MPa
|
99.3
|
|
12
|
Impact strength
|
≥
|
KJ/m2
|
16.1
|
|
13
|
Thermal stability
|
≥
|
°C
|
118
|
Suitable for mechanical applications and electrical applications; good electrical properties in air under normal humidity; suitable for hot impact machining.