Knowde Enhanced TDS
Identification & Functionality
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Key Characteristics
Low smoke, low toxicity, halogen free, flame retardant silane crosslinkable compound for insulation of LV cables and sheathing of all types of cables
Applications & Uses
- Markets
- Applications
- Cure Method
- Plastics & Elastomers Processing Methods
Properties
- Appearance
- Pellets
- Mechanical Properties
- Physical Properties
- Electrical Properties
- Fire & Smoke Properties
- Thermo-Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Elongation at Break | 140 | % | IEC 60811-501 |
| Elongation at Break (After Thermal Aging: 7 days at 135ºC) | -10 | % Variation | IEC 60811-401 |
| Permanent Elongation (After Cooling) | 0 | % | IEC 60811-507 |
| Elongation Under Load (20N/cm² at 200°C) (Cure Assessment by Hot Set Test (Force cured at 80°C in Water) | 30 | % | IEC 60811-507 |
| Tensile Strength | 13 | N/mm² | IEC 60811-501 |
| Tensile Strength (After Thermal Aging: 7 days at 135ºC) | 10 | % | IEC 60811-401 |
| Value | Units | Test Method / Conditions | |
| Density | 1.52 | g/cm³ | EN ISO 1183-3 |
| Melt Flow Rate (at 150°C / 21.6 kg) | 11 | g/10 min | Internal Method |
| Value | Units | Test Method / Conditions | |
| Insulation Resistance (at 90°C) | 0.1 | MOhm/km | BS EN 50395 |
| Value | Units | Test Method / Conditions | |
| Conductivity of Gases | 13 | μS/cm | IEC60754-2 |
| Temperature Index | 245 | °C | BS ISO 4589-3 |
| Temperature Index | 473 | °F | BS ISO 4589-3 |
| Corrosivity of Gases | 4.6 | pH | IEC60754-2 |
| Halogen Acid Gas Evaluation | max. 0.5 | % | IEC 60754-1 |
| Limiting Oxygen Index | 34 | % | BS ISO 4589-2 |
| Value | Units | Test Method / Conditions | |
| Hot Pressure Deformation (at 100°C) (K=1) | 35 | % | IEC 60811-508 |
Regulatory & Compliance
- Quality Standards
Technical Details & Test Data
- Processing
Extruder - An extruder with an L/D ratio (length/diameter) between 15 and 24 and a screw with a compression ratio 1.2:1 are recommended.
Extruder Temperature Conditions - It is important that the melt temperature is not allowed to increase above 160ºC.
As a guide the following temperature profile is recommended:Zone #1 Zone #2 Zone #3 Zone #4 Head Die Celsius 130°C 140°C 145°C 150°C 160°C 160°C Fahrenheit 266°F 284°F 293°F 302°F 329°F 329°F This profile will vary slightly depending on extruder type, head design and output. Initial purging of the extruder should be performed without the addition of catalyst masterbatch to reduce risks of pre-curing.
Screw Water Temperature: Not mandatory, if present we recommend 40-60°C
Recommended Screen Pack: Spacer ring or breaker plate onlyHead & Tool Design - The head and tools should be so designed as to allow streamlined flow without the possibility of stagnation of material (where pre-curing could take place). To obtain the optimum in physical properties in the case of tubing tools, a draw down ratio of 1.5:1 is recommended to avoid internal stresses.
Crosslinking or Cure - A fast cure can be obtained either by immersion in hot water or exposure to low pressure steam at a temperature up to 70°C. A satisfactory cure is possible at ambient temperature and humidity, we recommend that different % of catalyst masterbatch are tested for process optimization.
Color Masterbatches - EVA, preferable, and PE based color masterbatches including black, up to a maximum of 1%, have no detrimental effect on the properties or crosslinking capability. It is recommended that all masterbatches including those containing the catalyst, should be thoroughly dried before use for 8 hours at 60°C or 4 hours at 80°C in a de-humidifying drier
Packaging & Availability
- Packaging
The following possibilities are available:
- Moisture resistant sacks containing 25kg
- Boxes with heat sealed moisture resistant liner containing 600kg
Storage & Handling
- Storage & Shelf Life
A period of at least 9 months from date of manufacture can normally be expected. The following storage conditions are recommended:
- Packaging should remain sealed
- Avoid temperature above 30°C
- Avoid storage outside and in direct sunlight
- Use within 8 hours of opening packaging