phenolic cotton sheet , bakelite cotton sheet , insulation cotton sheet , cotton laminate sheet
Description: phenolic cotton sheet. A hard, dense material made by applying heat and pressure to layers of paper or glass cloth impregnated with phenolic resin with good electrical properties, good mechanical properties, no water absorption, high heat resistance, good surface hardness, abrasion resistance, good insulation. These layers of laminations are usually of cellulose paper, cotton fabrics, synthetic yarn fabrics, glass fabrics or unwoven fabrics. When heat and pressure are applied to the layers, a chemical reaction (polymerization) transforms the layers into a high-pressure thermosetting industrial laminated plastic. Apply to PCB fixture, ICT fixture, pads of drilling machine, gear, motor, generator, transformer, fixture inverter, switch, electric insulation part, generator, transformer, fixture, inverter, motor and electric insulation component.
Specification:
materuial: 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-resistant: B class 130
size: 1-80mm x 1m x 2m
| Properties | Grade |
| insulation bakelite rod |
| Properties | Units | 3723 | 3724 | 3725 | 3726 |
| Density | | Dia(mm) | g/cm3 | 1.25-1.40 | 1.25-1.40 | 1.25-1.40 | 1.25-1.40 |
| Water absorption rate (D-24/23) | ≤ | 6 | % | 1.7 | 1 | 1.2 | 1 |
| 13 | 1.3 | (Φ13mm) | (Φ13mm) | (Φ13mm) |
| 25 | 1 | | | |
| > | 25~51 | 1.2 | | | |
| Flexural strength | ≥ | | MPa | 90 | 95 | 110 | 95 |
| Tensile strengh | ≥ | | MPa | 78 | | | |
| Compression strength (Axial) | ≥ | | MPa | 138 | 138 | 138 | 138 |
| Insulation resistance parallel to laminations | | | | |
| A: Under normal condition | ≥ | | W | 1.0×108 | | | |
| D-24/23: Immersion in water | ≥ | | W | | | | |
| Breakdown voltage parallel to laminations (in transformer oil) | ≥ | | KV | 10 | 10 | 10 | 10 |
| | (20±5°C) | (20±5°C) | (20±5°C) | (20±5°C) |
| Flammability | | | - | - | - | - | - |
| Color | | | - | Natural | Natural | Natural | Natural |
| Reference standard | | | - | Enterprise Standard |
Product Tags:
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78Mpa Insulation Phenolic Cotton Sheet / Bakelite Cotton Sheets 1-80mm X 1m X 2m Images
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