3025 phenolic cotton cloth sheet and rod are made up of cotton saturated with phenolic resin, and are laminated under pressure and heat. This kind of thermoset composite material has been proved to be perfect for parts requiring outstanding mechanical strength and electrical properties for machinery, electric motor and electrical appliance.
This kind of plastic laminate is supposed to have smooth surface with absolutely no bubbles, corrugates and cracks. Moreover, other defects also should be bypassed such as scratch, crease, stain or uneven color. However, a small amount of color mottles are permitted.
1. Prominent mechanical strength, oil resistance and dielectric properties
2. Excellent inertness to all kinds of solvents and acid chemical medicine
1. Insulating parts for electric generator, electrical motor and power distribution cabinet, etc.
2. Transformer insulating oil
3. Abrasion resistant washer, bearing housing, slot, gear and trunnion for electrical motor and electric generator
Technical data sheet
|Phenolic cotton cloth laminated sheet (similar to NEMA C/CE/L/LE)|
|Vertical bending strength||MPa||≥100|
|Bonding strength (thickness ≥10mm)||N||-|
|Parallel impact strength (Charpy)||kJ/m2||≥8.8|
|Insulation resistance after immersion in water (D-24/23)||W||≥1×106|
|Vertical dielectric strength (at 90°C ± 2°C in insulating oil, 1mm thick)||MV/m||≥0.82|
|Parallel breakdown voltage (at 90°C ± 2°C in insulating oil)||KV||≥1|
|Water absorption (D-24/23, 1.6mm thick)||mg||≤220|
1. 3025 phenolic cotton cloth laminated sheet
We supply this cotton sheet in color of brown.
|3025 phenolic cotton cloth laminated sheet|
|Thickness (mm)||Width × length (mm)|
|0.5 to 2.5||1020 × 2020|
|3 to 60||1020 × 2020|
|65 to 150||1020 × 2020|
2. 3025 phenolic cotton cloth laminated rod
|3025 phenolic cotton cloth laminated rod|
|Diameter (mm)||Length (mm)|
|8 to 220||1000|
1. Other choices of sizes, colors and grades are customizable.
2. Length, width, thickness and diameter tolerance are slightly different due to inevitable error occurred in production process.
|Density||1.45 to 1.50 g/cm3|
|Hardness||Shore D 115-118|
|Certificates||CTI, SGS, RoHS|
|Production capacity||200 tons per month|
|Payment terms||TT, L/C, Western Union|
|Delivery cycle||About 15 working days|
|Added service||Slitting and machining|