Silicon HDPE DUCT for Optical Fiber Cable Deployment
2018-07-22The Silicon HDPE Duct is a new type of composite pipe with a silicone solid lubricant on the inner wall. Simultaneous extrusion and compounding by two plastic extruders, the main raw material is high-density polyethylene, and the core layer is a solid lubricant silica gel with the lowest friction coefficient. Therefore, the silicon core tube has many characteristics unmatched by other products in terms of physical properties, service life, comprehensive cost, and optical fiber cable construction.
Physical, mechanical and electrical properties
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Test Method |
Acceptance Criteria |
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Drop hammer impact |
GB/T14152 |
10/10 not broken |
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Ring stiffness |
GB9647 |
≥30KN/m2 |
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Flat test |
GB5836-86 |
does not break |
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Friction coefficient of inner wall of HDPE |
Flat plate method |
≤0.20 |
|
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Round drum method |
≤0.15 |
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Recovery rate |
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When the vertical direction is pressed to 70% |
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Tensile strength |
GB8804.2 |
≥18Mpa |
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Elongation at break |
GB8804.2 |
≥380% |
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Longitudinal retraction rate |
GB6671.2 |
≤3.0% |
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Connecting point pulling force |
|
≥4300N |
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Maximum traction load |
Speed 50mm/min |
10000N |
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Low temperature drop test |
Temperature -30℃, 1m height |
does not crack |
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Connection sealing test |
Temperature 20℃, Pressure 0.15MPa, 15min |
no change in pressure |
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Power frequency breakdown strength |
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≥15KV/mm |
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Minimum bending radius |
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≤625mm |
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Density of HDPE |
ASTM D792 |
0.940 to 0.958g/cm3 |