3021,3021B,3021C

3021,3021B,3021C

Category:

Description

Phenolic paper laminate sheet is made of insulating paper impregnated with phenolic resin after drying and hot pressing.

Features:

1.Normal Dimension:

1020mmx1020mm ; 1020mmx1220mm ; 1020mmx2040mm ; 1220mmx2470mm

2. Normal Thickness: 1.6mm to 50mm

Advantage:

With electrical properties and good mechanical properties under normal conditions.

Application:

Suitable for mechanical & electrical application,with good electrical properties under normal humidity conditions.3021B,3021C are two derivation types from 3021,with lower properties,and economical cost.

PROPERTIES

units

3021

3021B

3021C

Flexural strength perpendicular ≥

MPa

120

90

90

Bonding strength ≥

N

3200

3000

2800

Dielectric strength perpendicular to lamination
(in oil 90±2℃) ≥

MV/m

12.1

14
20±5℃
5min
1.1-2mm

12
20±5℃
5min
1.1-2mm

Breakdown voltage parallel to lamination
(in oil 90±2℃) ≥

KV

20

12
20±5℃
5min

10
20±5℃
5min

Relative dielectric coefficient ≤

5.5

loss factor ≤

0.05

Insulation resistance after impregnated in water ≥

Ω

1×107

1×109
(A)

Water absorption
1mm ≤

mg

170

Flammability

Colour

Chocolate

Reference standard

JB/T8149.1
-2000

Enterprise’s standards

Characterisitics & Applications

Suitable for mechanical & electrical application,with good electrical properties under normal humidity conditions.3021B,3021C are two derivation types from 3021,with lower properties,and economical cost.

Remarks:

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.

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