Pexidan® U/T

Category: XLPE , Crosslinked Polyethylene
Manufacturer: Saco Polymers
Trademark: Pexidan®
Fillers: -
Ports: Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms FOB, CIF, DAP, DAT, DDP
PDF: Q59tZ2_Pexidan-U-T.pdf
PRICE: ​Order Products​ email   sales@su-jiao.com
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Message
Low density moisture curable polyethylene compound for low voltage underground service entrance cables (UL styles USE and USE-2).

Pexidan® U/T is a low density XLPE system curable by moisture and consists of a silane pre-grafted base compound A-3001 and a catalyst masterbatch CAT-008. When mixed and extruded in the proper proportions (95/5), the two components result in a material curable by exposure to 70-90°C hot water or even ambient moisture. In order to prevent pre-scorching the grafted compound and the catalyst masterbatch must be stored separately and mixed only when used. Pexidan® U/T is RoHS-compliant.
General Information
Features
  • Low density
  • Crosslinkable
Uses
  • Low voltage insulation
  • Wire and cable applications
RoHS Compliance
  • RoHS compliance
Forms
  • Particle
Processing Method
  • Wire & Cable Extrusion
  • Extrusion
PhysicalNominal ValueUnitTest Method
Specific Gravity 0.918g/cm³ASTM D792
Melt Mass-Flow Rate (MFR) (190°C/2.16 kg)0.80g/10 minASTM D1238
Degree of Crosslinking 72%ASTM D2765
AgingNominal ValueUnitTest Method
Weatherometer Aging 1UL 1581
    Elongation after exposure 430%UL 1581
    Original elongation 440%UL 1581
    Original tensile strength 18.3MPaUL 1581
    Tensile strength after exposure 19.8MPaUL 1581
ThermalNominal ValueUnitTest Method
Deformation 1.0%UL 1581
ElectricalNominal ValueUnitTest Method
Dielectric Breakdown UL 1581
    -- 35000VUL 1581
    after glancing impact 33000VUL 1581
Insulation Resistance UL 1581
    23°C 560000Mohms/1000 ftUL 1581
    90°C 21000Mohms/1000 ftUL 1581
    after 12 weeks : 90°C 50000Mohms/1000 ftUL 1581
Additional InformationNominal ValueUnitTest Method
Crushing Test 635029gUL 1581
Hot Elongation - elongation under load (150°C) 240%Internal method
ExtrusionNominal ValueUnit
Head Temperature 185°C
Screw cooling neutral
MechanicalNominal ValueUnitTest Method
Tensile Strength UL 1581
    Yield 12.4MPaUL 1581
    Fracture 312.8MPaUL 1581
    Fracture 412.6MPaUL 1581
    Fracture 15.2MPaUL 1581
    Fracture 513.4MPaUL 1581
Tensile Elongation
    Fracture 6330%UL 1581
    Fracture 7350%UL 1581
    Fracture 450%UL 1581
ElectricalNominal ValueUnitTest Method
Dielectric Constant ASTM D150
    1 MHz 2.28ASTM D150
    100 MHz 2.28ASTM D150
Dissipation Factor ASTM D150
    1 MHz 4.4E-4ASTM D150
    100 MHz 4.6E-4ASTM D150
Additional InformationNominal ValueUnitTest Method
Curing can be done in the following ways: by immersion in hot water at 70-90°C by exposure to low pressure steam ambient atmospheric moisture In all cases curing time depends on wall thickness, temperature, relative humidity and quantity of wire on the reel.Typical values reported above (except MFR and Weather-o-meter) are obtained from 14 AWG samples with 30-mil wall thickness, cured in hot water (6 hours @ 95°C). Weather-o-meter testing was performed on 7 stranded, 6 AWG sample.
ExtrusionNominal ValueUnit
Cylinder Zone 1 Temp. 154 - 171°C
Cylinder Zone 2 Temp. 154 - 171°C
Cylinder Zone 3 Temp. 154 - 171°C
Cylinder Zone 4 Temp. 154 - 171°C
Die Temperature 185°C
Note Message
1 .300 hr. exposure
2 .15 minutes, 0.2 N/mm² load
3 .After 60 day oil @ 75°C
4 .After 30 day gasoline @ 23°C
5 .After thermal ageing (7days @121°C)
6 .After 60 day oil @ 75°C
7 .After 30 day gasoline @ 23°C
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