Shanghai Gengyun Industrial Co., Ltd
High-elastic Environmental Friendly Polymer Rubber Sheath for Optic Fiber
Environmental Friendly Rubber Sheath Material base on Rubber resin, this product is rubber sheath material made by mixing, plasticizing, and granulating with plasticizers, stabilizers, and other additives.
| Rubber Sheath Material Compound Application |
| Wire & Cable Sheath/Jacket (wire core working temperature 90 ºC ) |
| Appearance |
| Environmental Friendly Rubber sheath material should be made into uniformly sized particles with a particle size of 4 mm × 4 mm × 3 mm. Or ф 4× (2-4) mm. Good plasticization, uniform color, and no obvious impurities. |
| Color |
| The color is determined through negotiation between the supply and demand parties. |
Technology Parameters
| Technical Analysis | |||||
| Physical Property | |||||
| No. | Inspection items | Standard request | Test method | Typical value | |
| Technical Index | |||||
| 1 | Density g/cm3 | / | GB 1033 | 1.45 | |
| 2 | Tensile strength MPa | ≥16 | GB 1040 | 18.5 | |
| 3 | Elongation at Break % | ≥180 | GB 1040 | 240 | |
| 4 | Hot deformation rate (90ºC×4h) % | ≤40 | GB8815 | 26 | |
| 5 | Brittle temperature | Failed No.≤15/30 | GB5470 | Pass | |
| Test temperature-25ºC | |||||
| 6 | 200 ºC static thermal stability min | ≥80 | GB8815 | 88 | |
| 7 | Volume Resistivity at 20ºC Ω .m | ≥1× 109 | GB/T 1410 | 5 × 109 | |
| 8 | Dielectric Strength MV/m | ≥18 | GB/T1408. 1 | 20 | |
| 9 | Thermal aging property | 100 ± 2 ºC , 24 0h | |||
| Tensile strength MPa | ≥16 | GB1040 | 19 | ||
| Max Variation on Tensile Strength % | ±20 | 3 | |||
| Elongation at break % | ≥180 | 220 | |||
| Max Variation on Elongation at break % | ±20 | -8.3 | |||
| 10 | Thermal aging quality loss | ºC | 100±2 | GB/T2951 | |
| h | 240 | ||||
| Quality loss g/m2 | ≤15 | 12 | |||
| 11 | Oxygen Index | ≥28 | GB/T2406 | 28 | |
| Quality of Appearance | |||||
| 1 | Appearance | Extruded lines | Eye survey | ||
| are smooth | |||||
| 2 | Color | Consistent color tone | Eye survey | ||
| Standard deviation ≤1.5 | Colorimeter | ||||
| *Note: | |||||
| 1 The extruded lines are smooth, and no more than 3 floating points with a diameter ≥1.0 mm are allowed within 1 meter.No particles ≥ 3.0 mm are allowed. | |||||
| 2 All products shall undergo initial inspection upon startup. Including appearance, color, density, etc. | |||||
| 3 If the first sample test fails, a retest is required. And the result of the second test is the judgment standard. | |||||
| Processing |
| Using a general extruder for processing, L/D≥20 |
| Adjust appropriately according to the equipment and extrusion status. |
| The following temperature profile of extruder is recommended: | |||||||
| Zone | Zone 1 | Zone 2 | Zone 3 | Zone 4 | Zone 5 | Head | Die |
| Temperature ºC | 140 | 145 | 155 | 165 | 170 | 175 | 175 |
Rubber Sheath Material Package and Storage
| Storage and transport | ||||
| It should be packaged in moisture-proof packaging. With polyethylene film bags for the inner bag and kraft paper composite bags for the outer bag, with a net weight of (25.0 ± 0.2) kg per bag. Other packaging methods agreed upon by both the seller and the purchaser are allowed. | ||||
| During the transportation of the product, it should not be damaged by abnormal conditions. Such as sun, rain, and immersion in water. It should be kept clean, dry, not contaminated, and the packaging should be kept intact. | ||||
| The product should be stored in a clean, cool, dry, and ventilated warehouse. And the storage period should not exceed six months from the date of production. |
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