Epoxy glass cloth laminated sheets Properties
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Properties
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Units
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Epoxy glass cloth laminated sheets
|
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3240
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3240-1
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3240F
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Flexural strength perpendicular to lamination
≥
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MPa
|
340
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320
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340
|
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Notch impact strength parallel to lamination charpy
≥
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KJ/m2
|
33
|
33
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33
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Dielectric strength perpendicular to lamination（in oil 90±2℃）
≥
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MV/m
|
14.2
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14.2
|
14.2
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|
Breakdown voltage parallel to lamination
（in oil 90±2℃） ≥ |
KV
|
35
|
30
|
35
|
|
Relative dielectric coefficient
≤
|
—
|
5.5
|
—
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5.5
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Loss factor ≤
|
—
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0.04
|
—
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0.04
|
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Insulation resistance after impregnated in water
≥
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Ω
|
5×108
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1×108
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1×108
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Water absorption
1mm ≤ |
mg
|
18
|
18
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18
|
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Flammability
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—
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—
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—
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FV0
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|
colour
|
—
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Natural
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Reference standard
|
—
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GB/T 1303.1-1998 |
Enterprise's standards
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| Characteristics & applications | 1. 3240：Suitable for mechanical
,electrical ,electronic usual applictions, with high strength under moderate temperature and good electrical properties under high temperature. 2. 3240-1、3240F：Modified grades from 3240, 3240-1 not as strong mechanically as 3240,3240F is kind of flame retardent. |
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The size : 980×1980 mm, 1020×2040 mm ，
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.