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Knowde-enriched technical product data sheet
Identification & Functionality
- Additives Included
- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
- Key Characteristics
Low smoke, low toxicity, halogen free, flame retardant thermoplastic black compound mainly used in cable sheathing applications but also can be used as cable insulation. This compound presents a high hot pressure performance and a high stress crack resistance which allows it to be used as sheathing of any type of armored, large size cables.
Applications & Uses
- Markets
- Applications
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
Properties
- Color
- Physical Form
- Appearance
- Pellets
- Mechanical Properties
Value Units Test Method / Conditions Elongation at Break 180 % IEC 60811-501 Elongation at Break (After Thermal Aging: 7 days at 100ºC) 13 % Variation IEC 60811-401 Tensile Strength (at Break) 13 N/mm² IEC 60811-501 Tensile Strength at Break (After Thermal Aging: 7 days at 100ºC) -10 % Variation IEC 60811-401 - Physical Properties
Value Units Test Method / Conditions Density 1.48 g/cm³ EN ISO 1183-3 Melt Flow Rate (at 150°C / 21.6kg) 6 g/10 min Internal Method Tear Strength 7 N/mm BS 6469-99.1 - Electrical Properties
Value Units Test Method / Conditions Insulation Constant Ki Resistance (at 20ºC) 7.7 MOhm/km EN 50395 Insulation Constant Ki Resistance (at 90ºC) 0.057 MOhm/km EN 50395 - Fire & Smoke Properties
Value Units Test Method / Conditions Halogen Acid Gas Evaluation max. 0.5 % IEC 60754-1 Temperature Index 270 °C BS ISO 4589-3 Temperature Index 518 °F BS ISO 4589-3 Limiting Oxygen Index 33 % BS ISO 4589-2 - Thermo-Mechanical Properties
Value Units Test Method / Conditions Cold Bend (at -50°C) Pass No Cracks IEC 60811-504 Cold Impact (at -30°C) Pass - IEC 60811-506 Elongation at Break: (at -30°C) 60 (Pass) % IEC 60811-505 Hot Pressure Deformation (at 100°C) 30 % IEC 60811-508 Thermal Crack Resistance (at 80°C) Pass - Internal Method - Fluid Resistance
Fluid Resistance Time (hrs) Temperature °C % Variation in Tensile Strength % Variation Elongation at Break ASTM No 2 4 23 9 2 ASTM No 2 4 70 14 24 ASTM No 2 4 100 28 48
Technical Details & Test Data
- Processing Conditions
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 160°C. 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 320°F 320°F This profile will vary slightly depending on extruder type, head design and output.
Screw Water Temperature: Not mandatory, if present we recommend 40°-60°CRecommended Screen Pack: Spacer ring or breaker plate only
Head & Tool Design - The head and tools should be so designed as to allow streamlined flow of material. To obtain the optimum in physical properties in the case of tubing tools, a maximum drawdown ratio of 1.5:1 is recommended to avoid internal stresses.Color Masterbatches - EVA, preferable, and PE based color masterbatches including black, up to a maximum of 1%, have no detrimental effect on the properties. It is recommended that all masterbatches 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
Storage & Handling
- Storage & Shelf Life
TP835 has an unlimited shelf life. However, the following precautions should be observed:
- Packaging should remain sealed
- Avoid storage outside and in direct sunlight.