Description: the phenolic sheet, bakelite sheet are 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 or paper
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
standard size: 1-80mm x 1m x 2m
OEM & customized size are agreed
packing in cartons, pallets or crates
***When you enquiry, pls confirm color, size and quantity***
Bakelite is called phenolic paper laminated sheet. A hard, dense material made by applying heat and pressure to layers of paper or glass cloth impregnated with phenolic resin. 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.
Color: orange red / Black
Good electrical properties
Good mechanical properties
No water absorption
High heat resistance
Good surface hardness
Abrasion resistance
Good insulation
Application
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.
| Properties | Grade | |||||
| Phenolic Cotton Cloth laminated Rod | ||||||
| Properties | Units | 3723 | 3725 | 3726 | ||
| Density | Dia(mm) | g/cm3 | 1.25-1.40 | 1.25-1.40 | 1.25-1.40 | |
| Water absorption rate (D-24/23) | ≤ | 6 | % | 1.7 | 1.2 | 1 |
| 13 | 1.3 | (Φ13mm) | (Φ13mm) | |||
| 25 | 1 | |||||
| > | 25~51 | 1.2 | ||||
| Flexural strength | ≥ | MPa | 90 | 110 | 95 | |
| Tensile strengh | ≥ | MPa | 78 | \ | \ | |
| Compression strength (Axial) | ≥ | MPa | 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 | |
| (20±5°C) | (20±5°C) | (20±5°C) | ||||
| Flammability | - | - | - | - | ||
| Color | - | Natural | Natural | Natural | ||
| Reference standard | - | Enterprise Standard | ||||
