3021 Phenolic Paper Laminated Sheet
Description
Phenolic Paper laminated sheets is made of insulation paper impregnated with phenolic resin by processing under heat and pressure.
Features
Phenolic paper Laminated Sheet is strong, rigid and very economical. it has good electrical insulating properties and it’s used in a wide range of electrical installations, in equipment where rigid electrical insulation is required.
The impact strength of phenolic paper laminated sheet is not as high as materials in other groups and it’s not usually chosen where toughness, bearing properties or high stress carrying capabilities are required.
However, the lowest cost grades in this group represent excellent value as rigid non-metallic materials and it’s used in a very wide range of less demanding applications.
These materials offer an economic solution to engineering applications where good mechanical strength coupled with light weight and useful electrical resistance is required.
|
ITEM |
UNIT |
VALUE |
||
|
3021 |
3021B |
3021C |
||
|
Density |
g/cm3 |
1.30～1.45 |
1.30～1.45 |
1.30～1.45 |
|
Heat stability |
℃ |
115 |
115 |
115 |
|
Flexural strength≥ |
MPa |
120 |
90 |
90 |
|
Tensile strength≥ |
MPa |
100 |
— |
— |
|
adhesion force ≥ |
Ｎ |
3130 |
2940 |
2740 |
|
Insulation resistance parallel to lamination≥ |
Ω |
1×109 |
1×109 |
1×109 |
|
Voltage endurance perpendicular to lamination in transformer oil 5 min at 20±5℃≥ |
kV/mm |
|
|
|
|
Voltage endurance parallel to lamination in transformer oil 5 min at 20±5℃≥ |
kV |
14 |
12 |
10 |
|
Area of the sheets |
mm |
1020×1220,980×1980,1020×2040 |
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