Electrical Insulation Epoxy Resin Fiberglass Sheet Fr4 G10 G11 Sheet
1. Epoxy Fiberglass Sheet
Made of E-glass fabric impregnated with epoxy resin by processing under high temperature and
pressure. Having excellent electrical and mechanical properties, good heat and moisture resistance. Applicable
to insulating structural parts in motors, mechanical and electrical equipment, and can be used in transformer oil.
| NO. |
TEST ITEMS |
UNIT |
STANDARD VALUE |
TEST
RESULT |
TEST METHOD |
| 1 |
Bending strength perpendicular to lamination
|
MPa |
≥ 340 |
474 |
GB/T 1303.2-2009 |
| 2 |
Tensile strength
|
Direction |
MPa |
≥314 |
374 |
| Transverse |
≥216 |
372 |
| 3 |
Parallel layer impact strength
(Simply supported beam, gap) |
kJ/m2 |
≥33 |
46.8 |
| 4 |
Vertical layer electric strength (90 ºC + 2 ºC, 25# transformer oil, 20s step by step boost, φ25mm/φ75mm cylinder electrode system) |
MV/m |
≥11.8 |
12.6 |
| 5 |
Parallel layer breakdown voltage (90 ºC + 2 ºC, 25# transformer oil, 20s step by step boost, φ130mm/φ130mm flat plate electrode system) |
KV |
≥35 |
78.3 |
| 6 |
Relative permittivity (50HZ) |
- |
≤5.5 |
5.37 |
| 7 |
Insulation resistance after soaking |
MΩ |
≥5.0*104 |
1.4*105 |
| 8 |
Water absorbency |
% |
≤0.71 |
0.03 |
| 9 |
Viscosity and strength |
N |
≥5600 |
10743 |
GB/T 1303.6-2009 |
| 10 |
Flammability |
Grade |
V-0 |
V-0 |
GB/T 1303.2-2009 |
| 11 |
Glass transition temperature (DSG method) |
ºC |
≥130 |
136 |
GB/T 22567-2008 |
REMARK:
- NO. 4 the sample thickness is 3.05-3.08mm
- NO. 5 the sample size is (99.96~100.08)mm*(25.37~25.42)mm*(3.06*3.08)mm thickness. The electrode spacing is (25.37~25.42)mm.
- NO. 8 the sample size is ( 50.06~50.12)mm*( 50.05-50.31)mm*( 3.02-3.05)mm
- NO. 10 The experimental gas source is methane with a purity of not less than 98%, and the experimental flame raises the standard copper block from 100ºC to 700ºC in 43s. the sample size is 13(width)*3mm(thickness).
- NO. 9 the sample size is 25.5*25.8*10.1mm.
|
2. Product Details
3. Application Details
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