Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
Applications & Uses
- Markets
- Plastics & Elastomers Processing Methods
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Dielectric Strength | 39.0 | MV/m | GB/T1408.1 |
| Elongation at Break | 496.0 | % | GB/T1040.3 |
| Impact Brittle Temperature (-76°C) | Pass | - | GB/T5470 |
| Maximum Elongation at Break Change (Test temperature 135°C, 168 hr) | 8.8 | % | GB/T8815 |
| Maximum Elongation Change under Load (200±3°C x 15 min x 0.2 MPa) | 54.0 | % | GB/T2951 |
| Maximum Permanent Elongation Change after Cooled (200±3°C x 15 min x 0.2 MPa) | 4.0 | % | GB/T2951 |
| Maximum Tensile Strength Change (Test temperature 135°C, 168 hr) | 9.9 | % | GB/T8815 |
| Tensile Strength | 21.5 | MPa | GB/T1040.3 |
| Volume Resistance (20°C) | 2×10^14 | Ohm.m | GB/T1410 |
Regulatory & Compliance
- Quality Standards
- Standard
After cross linked in the tepid water, the cable made from our product grade 4251/4251B can comply with the standard of IEC60502-2004, GB/T12706-2002.
Technical Details & Test Data
- Recommended Processing Technique
Extrusion Equipment
Most extruders for PVC and PE suit for 4251. The recommended equipment and processing technique is as following.
Ratio of Length and Diameter 18-25:1 Diameter 45-120mm Ratio of Compressing 1.5-3.5 Ratio of Elongation 1:1.0-1:1.5 Filtering Mesh 40/60/40 Extruder Processing Temperature and Other Related Settings
- Temperature Setting: Specific processing temperature should be based on different equipment and pressing conditions, reference settings are as following:
Feeding section (°C) Compression Section (°C) Measurement Section (°C) Die head and Mold (°C) 150~165 165~180 180~200 200~210 - Die head setting: Tubing extrusion style is recommended.
Crosslink:
After extrusion and cooling, the cable can be cross linked by immersed in hot water (90°C) or exposed in low pressure vapor. The time required for crosslink is based on the thickness of the insulation and the coil size, the thicker the insulation and the greater the coil size, the longer the crosslink time required. The crosslink time can be calculated according to the equation of 4hr/mm for 90°C.
- Temperature Setting: Specific processing temperature should be based on different equipment and pressing conditions, reference settings are as following: