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Universal radiation cross-linked low-smoke halogen-free flame retardant polyolefin cable material

Product name, item and use

Name Item Use
105°C irradiation cross-linked low-smoke halogen-free flame retardant polyolefin cable material YHS70017-105 Applicable to national standard electronic wire, cloth wire and assembly wire, etc.
125°C irradiation cross-linked low-smoke halogen-free flame-retardant polyolefin thin wall material YHS70017B-125 Applicable to national standard electronic wire, cloth wire and assembly wire, etc.
150°C irradiation cross-linked low-smoke halogen-free flame retardant polyolefin cable material YHS70017-150 Good heat resistance, high temperature non-blocking

Product introduction

Irradiation crosslinking flame retardant polyolefin low smoke halogen-free cable material (YHS70017 Series) is based on polyolefin resin, adding high-quality and efficient halogen-free flame retardant, crosslinking sensitizer, antioxidant and other processing aids, through mixing, plasticizing and granulating, it not only has excellent mechanical and physical properties, electrical properties, flame retardant properties and processing performance, but also has high heat resistance and no containing Halogen, low smoke.

Extrusion process

When the storage environment is wet or the production surface is required to be high, the particles can be dried in a hot air hopper at 70 ℃ for 1-2 hours.

It is recommended to use a low compression ratio screw extrusion with a compression ratio of 1.2-2.0:1.Before extrusion, the screw should be cleaned to ensure the cleanliness of the product. It is recommended to use 80 mesh or 100 mesh filter screen to avoid impurities in the extrusion process, and to ensure the melt pressure to obtain a good appearance and material density.As the difference between the actual temperature of the melt and the indicated value of the temperature control table varies with the type of extruder, the user is requested to select the appropriate temperature according to the specific situation of the extruder used.The following temperatures can be used as reference for start-up and commissioning:

Position Cylinder I Cylinder Ⅱ Cylinder Ⅲ Cylinder Ⅳ Cylinder Ⅴ Head and mold
Temperature 120±5 140±5 150±5 155±5 155±5 160±5

Packaging and storage

(25 ± 0.2) kg / bag, inner aluminum plastic composite bag, outer kraft paper bag (or customer specified packaging)

Stored in dry and ventilated place

Prevent sun, rain and water

Storage period is 6 months

Product performance

Test project Units YHS70017-10 5 YHS70017B-125 YHS70017-150
Density g/cm3 1.43 1.44 1.43
Original tensile strength (after irradiation) Mpa 13.0 13.0 12.8
Original elongation at break (after irradiation) % 178 180 200
Heat aging of air after irradiation ℃ ×h 136×168 158×168 180×168
Tensile strength change rate % +8 +7 +8
Rate of change of elongation at break % -10 -11 -12
Thermal extension test 200℃×15min×0.2MPa
Elongation under load % 60 60 40
Permanent deformation % 0.5 0.5 0.2
Low temperature embrittlement temperature ℃ -40 pass -40 pass -40 pass
20 ° C volume resistivity Ω .cm 2.0×1014 4.0×1014 3.0×1014
20 ° C dielectric strength MV/m 26 28 27
Oxygen Index % 35 34 34
Smoke density Flame method 70 75 70
Flameless method 170 170 180
Halogen acid content mg/g 0 0 0
pH value - 6.1 6.2 6.0
Conductivity μs/mm 0.6 0.5 0.6
Toxicity index - 2.0 1.5 2.0

Note: The above data is a typical value obtained by testing the product and is not a standard for testing restrictions.

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