78Mpa Insulation Phenolic Cotton Sheet / Bakelite Cotton Sheets 1-80mm X 1m X 2m
phenolic cotton sheet, bakelite cotton sheet, insulation cotton sheet, cotton laminate sheet
Phenolic cotton sheet is a hard, dense material manufactured by applying heat and pressure to layers of cotton fabric impregnated with phenolic resin. This high-pressure thermosetting industrial laminated plastic offers excellent electrical properties, mechanical strength, and thermal resistance, making it ideal for demanding industrial applications.
Key Features
- Excellent electrical insulation properties
- Superior mechanical strength and durability
- No water absorption
- High heat resistance (B class 130)
- Good surface hardness and abrasion resistance
- Reliable insulation performance
Applications
PCB fixtures, ICT fixtures, drilling machine pads, gears, motors, generators, transformers, fixture inverters, switches, electrical insulation parts, and various electrical insulation components.
Specifications
Material: Phenolic resin + cotton fabric
Color: Brown, beige, yellow, red
Surface: Smooth
Tensile Strength: 78Mpa
Flexural Strength: 90-110Mpa
Compression Strength: 138Mpa
Breakdown Voltage: 10KV
Density: 1.25-1.40g/cm³
Heat Resistance: B class 130
Size: 1-80mm * 1m * 2m
Technical Properties by Grade
| Properties |
Units |
3723 |
3724 |
3725 |
3726 |
| Density |
g/cm³ |
1.25-1.40 |
1.25-1.40 |
1.25-1.40 |
1.25-1.40 |
| Water absorption rate (D-24/23) |
% |
1.7 |
1.0 |
1.2 |
1.0 |
| Flexural strength |
MPa |
90 |
95 |
110 |
95 |
| Tensile strength |
MPa |
78 |
- |
- |
- |
| Compression strength (Axial) |
MPa |
138 |
138 |
138 |
138 |
| Breakdown voltage parallel to laminations (in transformer oil) |
KV |
10 |
10 |
10 |
10 |
| Flammability |
- |
- |
- |
- |
- |
| Color |
- |
Natural |
Natural |
Natural |
Natural |
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