 3240 Epoxy Resin Board
Epoxy resin board is by the electrician non alkali glass fiber cloth impregnated with epoxy, phenolic resin, drying, hot pressing plate insulation laminated products。Suitable for the mechanical, electrical and electronic components with high insulation structure, and can be used in the wet conditions and the oil of the transformer, which has high mechanical and dielectric properties of heat resistance and moisture resistance. Heat resistant grade B, grade F。
Characteristics:
1. Strong mechanical properties, and has good machining, machining of high strength, wear resistance, high temperature resistance, stable electrical performance in high temperature, humidity, used for transformer skeleton, wiring boards, insulation, liner plate of insulation structure。
2.The mechanical properties high of middle temperature, stable electrical properties at high temperature. At room temperature and 155 ℃ still has high mechanical strength, excellent electrical insulation properties, common product withstand voltage breakdown index is as high as 20KV/mm.
3. The flexural strength and processing performance is excellent, the product has high bending strength, and excellent toughness, can use the lathe, milling machine, drilling machine processed into various shaped pieces without stratification。
4. Low thermal conductivity, electrical insulation performance is excellent,oil resistance anticorrosive, dry, wet and good electrical performance, flame retardant。
Product Specifications：
length x width： 1000 x 1000mm 1020x 2020mm , according to customer requirements and processing of various sizes of epoxy resin board, washer, special-shaped pieces, according to drawings process various parts
Thickness：0.4mm,0.5mm,0.6mm,0.8mm,1.0mm，2.0mm，3.0mm，4.0mm，5.0mm , 10mm , 20mm , 25mm , 30mm , …… 100mm
Color：yellow
Table 1 Performance indicators
| No. |
Items |
Unit |
Index |
| 1 |
Density |
g/cm3 |
（1.70~1.90） |
| 2 |
Absorbent |
mg |
Table 2 |
| 3 |
Vertical layer to bending strength |
MPa |
≥340 |
| 4 |
Vertical to the compression strength layer |
MPa |
≥（350） |
| 5 |
Tensile Strength |
MPa |
≥（300） |
| 6 |
Adhesive strength |
N |
≥5600 |
| 7 |
Impact strength (simply supported beam method) |
kJ/m2 |
≥33 |
| 8 |
Insulation resistance after immersion in water |
Ω |
≥5.0×108 |
| 9 |
Dielectric loss factor, 1MHz |
— |
≤0.04 |
| 10 |
The dielectric constant, 1MHz |
— |
≤5.5 |
| 11 |
Vertical layer to electric strength
(90 ± 2) ℃ in transformer oil |
kV/mm |
Table3 |
| 12 |
Parallel to layer breakdown voltage
(90 ± 2) ℃ in transformer oil |
kV |
≥35 |
Table 2 Absorbent
| The average thickness(mm) |
Absorbent （mg） |
The average thickness(mm) |
Absorbent （mg） |
The average thickness(mm) |
Absorbent （mg） |
| 0.4 |
≤17 |
2.0 |
≤20 |
10 |
≤34 |
| 0.5 |
≤17 |
2.5 |
≤21 |
12 |
≤38 |
| 0.6 |
≤17 |
3 |
≤22 |
14 |
≤41 |
| 0.8 |
≤18 |
4 |
≤23 |
16 |
≤46 |
| 1.0 |
≤18 |
5 |
≤25 |
20 |
≤52 |
| 1.2 |
≤18 |
6 |
≤27 |
25 |
≤61 |
| 1.6 |
≤19 |
8 |
≤31 |
One side of processing to 22.5 |
≤73 |
Table 3 Electric strength
| The average thickness(mm) |
Electrical strength kV/mm |
The average thickness(mm) |
Electrical strength kV/mm |
The average thickness(mm) |
Electrical strength kV/mm |
| 0.4 |
≥16.9 |
1.0 |
≥14.2 |
2.2 |
≥11.4 |
| 0.5 |
≥16.1 |
1.2 |
≥13.7 |
2.4 |
≥11.1 |
| 0.6 |
≥15.6 |
1.4 |
≥13.2 |
2.5 |
≥10.9 |
| 0.7 |
≥15.2 |
1.6 |
≥12.7 |
2.6 |
≥10.8 |
| 0.8 |
≥14.8 |
1.8 |
≥12.2 |
2.8 |
≥10.5 |
| 0.9 |
≥14.5 |
2.0 |
≥11.8 |
3.0 |
≥10.2 |
|
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