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Universal thermoplastic low-smoke halogen-free cable material

Product name, item and use

Name Item Use
High flame retardant and low smoke halogen-free polyolefin oxygen barrier YHS70011 Oxygen barrier for cable, high flame retardant
Thermoplastic low smoke halogen free flame retardant polyolefin cable material YHS70012 Power cable, data cable, control cable, optical cable, household cloth wire, etc
Polyolefin low smoke halogen free flame retardant injection plastics YHS70012A Branch cable injection head and various connectors

Product introduction

Environmental friendly low smoke halogen-free flame-retardant polyolefin cable material is made of polyolefin elastomer as the base material, adding flame retardant, smoke suppressant, antioxidant and processing aid, etc., through mixed plasticization and granulation.It not only has excellent physical and mechanical properties, electrical properties, flame retardant properties and processing performance, but also has the characteristics of halogen-free, low smoke emission and high environmental protection.It is especially suitable for large-scale public facilities with high fire resistance requirements, such as subway, high-rise buildings, airports, stadiums and large petrochemical refining and chemical enterprises.Once the cable made of this material burns, it can be flame-retardant and extinguished quickly. Only a small amount of smoke is emitted, and there is no corrosive or harmful gas generated, which can effectively guarantee the safety of people and equipment.

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 a reference for 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 YHS70011 YHS70012 YHS70012A
Density g/cm3 1.55 1.46 1.26
tensile strength Mpa 8.0 12.5 10.0
elongation at break % 100 200 170
Air heat aging ℃ ×h - 110×168 -
Tensile strength change rate % - +13 -
Rate of change in elongation at break % - -10 -
Low temperature impact embrittlement temperature ℃ - -40 pass -25 pass
20°C volume resistivity Ω.cm - 2.0×1014 5.0×1013
20°C dielectric strength MV/m - 28 26
Oxygen Index % 45 35 28
High temperature pressure (90°C * 4H) % - 12
Thermal shock (150°C * 1H) - - No cracking -
Smoke density Flame method - 60 70
Flameless method - 150 168
Halogen acid content mg/g 0 0 0
pH 值 - 6.8 6.6 6.2
Conductivity μs/mm 1.4 1.2 1.3
Toxicity index - 1.0 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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