3526 Phenolic Laminated Tube
Product Description
3526 Phenolic Laminated Cotton Cloth Tube is a heavy-duty electrical and mechanical insulation material crafted from high-tensile, scouring desizing cotton fabric thoroughly impregnated with premium phenolic resin. Compared to paper-based tubes, this cotton cloth laminate offers significantly higher longitudinal tensile strength, excellent impact resistance, and lower water absorption (≤4%).
With a superior thermal stability rating of ≥130° C, it is specifically engineered for structural components that demand robust mechanical loads and complex precision machining.
1, Structure (composition): scouring desizing cotton cloth, phenolic resin;
2, Performance (summary): high longitudinal tensile strength and low water absorption;
3, Application (purpose): suitable for insulation structure parts with high mechanical strength requirements and bearing a variety of mechanical processing;
4, Minimum inner diameter ɸ10; maximum outer diameter ɸ800; minimum wall thickness: 2mm;
|
No. |
Indicator |
Unit |
Index value |
|
|
1 |
Density |
g/cm3 |
1.04~1.20 |
|
|
2 |
Water absorption |
% |
≤4 |
|
|
3 |
Thermal stability (24h) |
°C |
≥130 |
|
|
4 |
Bending strength |
Mpa |
≥80 |
|
|
5 |
Compression strength |
Mpa |
≥45 |
|
|
6 |
Surface resistivity |
Normal state |
Ω |
≥1.0 x 108 |
|
Be exposed to moisture |
≥1.0 x 107 |
|||
|
7 |
Volume resistivity |
Normal state |
Ω.m |
≥1.0 x 107 |
|
Be exposed to moisture |
≥1.0 x 105 |
|||
|
8 |
Vertical laminar electrical strength (50Hz in 20°C±5°C transformer oil) |
MV/m |
≥3.5 |
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