Phenolic cotton cloth laminated sheets
3025 Phenolic cotton cloth laminated sheet are made from cotton cloth that impregnated with phenolic resin under pressure and heat. With high mechanical strength and electrical properties
3025A, 3025B, 3026, 3027 (China standard) is in accordance with C, CE, L, LE (NEMA Standard)
1. Application:
3025 Phenolic cotton cloth laminated sheets can be used for a construction material as well as an electrical insulation material in various machines and equipments like gear running and friction wheel or friction surfaces.
2. Thermal grade：Class E (120℃).
3. Thickness: 0.5-120mm; Size: 980x1980mm, 1020x2020mm, 1220x2440mm
4. Color: Brown
5. The other size can be supplied according to customers’ requests.
※Products can be supplied sheets or shapes according to customer drawing
※Note: The values noted in above technical specification are given only for our customers’ reference and should not be used in writing specifications.
6.Technical data：
|
Properties |
Unit |
Index Value |
Fact Value |
|
Flexural strength perpendicular to laminations |
MPa |
≥91 |
115 |
|
Martin resistance temperature |
℃ |
＞125 |
132 |
|
Tensile strength |
MPa |
≥55 |
76 |
|
Impact strength parallel to laminations (Charpy) |
KJ/m2 |
≥2.5 |
3.2 |
|
Bonding strength |
N |
≥5500 |
6900 |
|
Insulation resistance after immersion in water (D-24/23) |
Ω |
≥1.0×106 |
2.7×106 |
|
Dielectric strength perpendicular to laminate (in 90±2℃ transformer oil, 2 mm) |
MV/m |
0.5-1mm＞4.0 |
4.9 |
|
1.1-2mm＞3.0 |
4.9 |
||
|
Density |
g/cm3 |
1.3-1.5 |
1.4 |
|
Color |
\ |
|
Natural |
|
Reference standard |
|
Enterprise Standard |
