FR-4 Epoxy glass fiber cloth substrate
Regular thickness: 0.5~100mm
Regular size: 1020×2040mm
Compared with general insulating materials, the outstanding advantages of Flexible mica boards are:
Excellent high temperature resistance and insulation performance, the breakdown voltage still maintains 15kV/mm under the use environment of temperature 500-1000℃;
Superior mechanical properties, Flexible mica board has good tensile properties;
Stable chemical properties, excellent acid and alkali resistance and aging resistance;
Excellent environmental performance, does not contain toxic and harmful components, and does not produce toxic gases at high temperatures;
Excellent processing performance, can be processed into various shapes without delamination.
Packing: Generally 50kg is a pack, sealed with plastic film, and then packed in carton. When exporting, use fumigation-free trays and pack them according to less than 1000kg per tray, or use iron boxes for protection.
No. |
Item |
Unit |
|
Testing Method |
1 |
Bending strength |
MPa |
≥340 |
GB/T 1303.4-2009
|
2 |
apparent flexural modulus |
MPa |
|
|
3 |
Tensile Strength |
MPa |
|
|
4 |
Parallel layer impact strength (simply supported beam method, notched) |
kj/m2 |
≥33 |
|
5 |
Vertical layer-wise electrical strength (90C±2C, in 25# transformer oil, 20s step-up, O 25mm/ O 75mm cylindrical electrode system) |
kV/mm |
≥11.4 |
|
6 |
Parallel Layer Breakdown Voltage (90°C±2°C, 25# transformer oil, 20s step-up, medium 130mm/O 130mm flat electrode system) |
kV |
≥35 |
|
7 |
Dielectric Loss Factor(1MHz) |
—— |
|
|
8 |
Insulation resistance after immersion in water |
MQ |
≥5×104 |
|
9 |
Tracking Resistance Index(PTI 600) |
—— |
|
|
10 |
Density |
g/cm3 |
|
|
11 |
Water Absorption |
mg |
≤27 |