Product name: Black bakelite sheet
Technical parameters
|
Serial number
|
Properties
|
Unit
|
Measured value
|
|
|
1
|
Color
|
Red/Black
|
||
|
2
|
Thermal stability(continuous)
|
≥
|
°C
|
140
|
|
3
|
Thermal stability(short time)
|
≥
|
°C
|
300
|
|
4
|
Density
|
g/cm3
|
1.45
|
|
|
5
|
Coefficient of linear thermal expansion
|
Kx
|
10
|
|
|
6
|
Impact strength
|
≥
|
KJ/m2
|
67
|
|
7
|
Flammability(UL94)
|
HB
|
94
|
|
|
8
|
Flexural strength perpendicular to laminations
|
≥
|
MPa
|
120
|
|
9
|
Compression strength perpendicular to
laminations
|
≥
|
MPa
|
250
|
|
10
|
Tensile strength
|
≥
|
MPa
|
100
|
|
11
|
Adhesive strength
|
≥
|
N
|
3600
|
|
12
|
Insulation Resistance after
impregnated in water
|
≥
|
Ω
|
1.0×108
|
|
13
|
Dielectric Strength
Perpendicular to Laminations
(in 90±2°C transformer oil,1mm in thickness)
|
≥
|
KV/m
|
12.1
|
|
14
|
Breakdown voltage parallel
to laminations(in 90±2°C, Transformer oil)
|
≥
|
kV
|
10
|
|
15
|
Permittivity
(1MHz/50Hz)
|
≤
|
—
|
5.5
|
|
16
|
Volume resistance
|
Ω x cm
|
10-7~10-8
|
|
|
17
|
Surface resistance
|
Ω
|
1023
|
|
|
18
|
Bibulous rate
|
≤
|
—
|
1.5
|
Application
(1) Used as the insulating structural parts for a motor, electrical equipment which has higher requirements about mechanical performance , and can be used in transformer oil;
(2) Suitable for electrical, mechanical mould, PCB, ICT fixture. Molding machine, drilling machine, mesa grinding plate. ICT,ITE rule the processing of the insulation parts,test fixtures,silicon rubber keypads mold ;