SI-LINK™ DFDB-5400 NT

Category: PE, Unspecified , Moisture Curable System, Flame Retardant Masterbatch
Manufacturer: The Dow Chemical Company
Trademark: SI-LINK™
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: uZ4gUX_SI-LINK-DFDB-5400-NT.pdf
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SI-LINK™ DFDB-5400 NT is a RoHS (Reduction of Hazardous Substances)-compliant flame retardant masterbatch designed to be used in conjunction with SI-LINK™ DFDA-5451 NT Polyethylene and the catalyst masterbatch SI-LINK™ DFDB-5480 NT Polyethylene to form a flame retardant SI-LINK polyethylene insulation system. This system is bulletinized by UL as DFDB-5425 and is moisture curable. The specific gravity of the system is 1.04. It is recommended for use in low voltage power cable and industrial cable applications. SI-LINK™ DFDB-5400 NT is formulated to pass the UL-44 horizontal burn test on 14 AWG (1.63 mm) wire, 0.030 in. insulation wall thickness, at a 25% loading with 70% SI-LINK™ DFDA-5451 NT and 5% SI-LINK™ DFDB-5480 NT.

UV resistance allowing the wire to be printed "SunRes" may be achieved with the addition of a UV stabilizer package. The formulation for such an additive is available upon request and the resulting product is bulletinized by UL as DFDB-5425 UV. For accelerated curing applications SI-LINK™ DFDB-5400 NT can be used in conjunction with SI-LINK™ AC DFDB-5451 NT Polyethylene and the catalyst masterbatch SI-LINK™ AC DFDA-5488 NT Polyethylene to form a flame retardant SI-LINK™ AC polyethylene insulation system. This system is recognized by UL as DFDB-5425 AC. It is formulated to pass the UL-44 horizontal burn test on 14 AWG (1.63 mm) wire, 0.030" wall thickness, at a 25% loading with 70% SI-LINK™ DFDB-5451 NT and 5% SI-LINK™ AC DFDA-5488 NT.

SPECIFICATIONS

The DFDB-5425 systems are bulletinized by UL for XHH, XHHW, XHHW-2, RHH, RHW, RHW-2, SIS, USE and USE-2. They are also suitable for CSA RW-90, and RWU-90 applications.
General Information
Wire Types
  • RHH
  • RHW
  • RHW-2
  • RW-90
  • RWU-90
  • SIS
  • USE-2
  • XHH
  • XHHW
  • XHHW-2
  • Uses
RoHS Compliance
  • RoHS compliance
PhysicalNominal ValueUnitTest Method
Specific Gravity 11.04g/cm³ASTM D792
Degree of Crosslinking > 80%ASTM D2765A
AgingNominal ValueUnitTest Method
Change in Relative Permittivity UL 44
    1-14 days 2.0%UL 44
    7-14 days 1.0%UL 44
Tensile strength retention- 7 days (121°C) 80%ASTM D412
Elongation retention rate- 7 days (121°C) 80%ASTM D412
ThermalNominal ValueUnitTest Method
Thermal deformation (131°C) %UL 44
Thermosetting- Elongation (200°C) 2%IEC 60811-2-1
ElectricalNominal ValueUnitTest Method
Capacitance 3UL 44
    pf, 1 day : 90°C 750UL 44
    pf, 14 days : 90°C 750UL 44
    pf, 7 days : 90°C 750UL 44
FlammabilityNominal ValueUnitTest Method
Flame test- Horizontal 4PassUL 44
Additional InformationNominal ValueUnitTest Method
Crushing Test 6005NUL 44
Flexibility - 4 hrs (-25°C) 5No visible cracksUL 854
ExtrusionNominal ValueUnit
Head Temperature 171°C
ElastomersNominal ValueUnitTest Method
Tensile Strength 2000MPaASTM D412
Tensile Elongation (Break)300%ASTM D412
ElectricalNominal ValueUnitTest Method
Relative Permittivity 63.00UL 44
FlammabilityNominal ValueUnitTest Method
Oxygen Index 26%ASTM D2863
ExtrusionNominal ValueUnit
Drying Temperature 66.0°C
Drying Time 4.0 - 6.0hr
Cylinder Zone 1 Temp. 149°C
Cylinder Zone 3 Temp. 160°C
Cylinder Zone 5 Temp. 171°C
Melt Temperature 185°C
Die Temperature 171°C
Extrusion instructions
The data below summarizes conditions for a commercial extrusion run of DFDB-5425 (DFDB-5400 NT /DFDA-5451/DFDB-5480, 25%/70%/5%). Using these conditions with a standard polyethylene screw afforded high quality finished wire.Desiccant drying of the masterbatches at 150°F (66°C) for 4-6 hours is recommended. Wire pre-heat of 176-212°F (80-100°C) is recommended to obtain the typical physical properties for circuit size conductors. Adequate curing requires exposure for a minimum of 24-48 hours to 194°F (90°C) water or steam. Exact extrusion characteristics will of course be dependent on the equipment in use and can only be determined during cable trials.ExtruderScrew L/D: 15:1 to 20:1Screw Suggested: Single FlightCompression Ratio: 2.5:1 to 3.5:1Screen Pack: 20/40/60/20 Mesh
Note Message
1 .23°C
2 .15 min, 20N/cm²
3 .These tests were conducted on #14 AWG solid wires insulated with 0.030 in. wall thickness insulation.
4 .No. 14 AWG 30 mil wallThese tests were conducted on #14 AWG solid wires insulated with 0.030 in. wall thickness insulation.
5 .This test was conducted on # 4 AWG stranded wire insulated with 0.060 in. wall thickness insulation.
6 .1 dayThese tests were conducted on #14 AWG solid wires insulated with 0.030 in. wall thickness insulation.
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