Low Smoke Halogen-Free Flame Retardant Polyolefin Cable Material Crosslinked By Radiation At 125 Temp

Low Smoke Halogen-Free Flame Retardant Polyolefin Cable Material Crosslinked By Radiation At 125 Temperature

Product Name, Model Type and Usage

Product Model

Product Name

Characteristics And Uses

SH8509-125

Low Smoke Halogen-Free Flame Retardant Polyolefin Cable Material Crosslinked by Radiation at 125 Temperature

Low temperature resistance - 40 C, burning crust, excellent flame retardant; used for power cables, boats and control.


Product introduction

SH8509-125 is a kind of irradiated cross-linking halogen-free low smoke polyolefin cable material. It is mainly used in power cables, control cables, signal cables and so on. Its long-term service temperature is 125℃.

SH8509-125 meets the requirements of GB/T 19666-2005, IEC60092, SHF2 and RoHS and REACH. It is a green flame retardant material.

Product characteristics

·Excellent Low Temperature Resistance                  ·Low smoke emission and low corrosivity

·Excellent resistance to high and low temperature            ·Good extrusion performance

·Excellent oil resistance

Processing Guidelines

The best extrusion effect can be obtained by using 1:1.2 low compression ratio screw. PE/PVC screw extrusion can also be used.

Recommended processing temperature:

position 1area 2area 3area 4area 5area nose die port
temperature(℃) 125 135 145 155 160 165 160-165

The melt temperature should be controlled between 160 and 175 degrees C, and the maximum should not exceed 180 degrees C.

If the material is stored in humid environment for a long time, drying treatment is recommended. The drying temperature is 80 C and the drying time is 1-2 hours.

Usually, the measurement of irradiation processing should be controlled at 8-15 Mrad, but ultimately the thermal extension should be taken as the criterion. The optimal control of thermal extension is 50-80%. If oil resistance is required, the thermal extension should be controlled at 20-30%.

Storage and Packaging

It should be stored in a dry and ventilated warehouse.

The products are packed in 25kg paper-plastic composite bags or 500kg container bags.

It can also be packed according to user's requirements.

Technical characteristics

physical property

unit

SH8509-125 typical value

test method

density

g/cm3

1.44

GB/T 1033.1

low temperature embrittlement temperature(-40℃)number of failures

individual

0

GB/T 5470

thermal deformation(125℃×4h)

%

6

GB/T 8815

 

 

 

 

mechanical properties

unit

SH8509-125 typical value

test method

tensile strength

MPa

14

GB/T 1040

elongation at break

%

215

GB/T 1040

thermal aging properties158℃×7days

 

 

GB/T 2951.12

tensile strength change rate

%

+11

 

max change of elongation at break

%

-4

 

 

 

 

 

thermal extension 20N/cm2 200℃×15min

 

 

GB/T 2951.21

load elongation

%

48

 

permanent deformation

%

0

 

oil resistance testASTMZ# 100℃×24h

 

 

GB/T 2951.21

tensile strength change rate

%

-20

 

fracture elongation change rate

%

+14

 

 

 

 

 

electrical performance

unit

SH8509-125 typical value

test method

20℃ volumetric resistivity

Ω·m

9.5×1011

GB/T 1410

dielectric strength

MV/m

27.5

GB/T 1408.1

 

 

 

 

combustion performance

unit

SH8509-125 typical value

test method

oxygen index

%

35

GB/T 2406

acid gas

 

 

GB/T 17650.2

conductivity

us/mm

0.95

 

PH value

 

5.5

 

maximum smoke density Dm

 

 

ASTME662

smoking method

-

65

 

smoke-free method

-

190

 

toxicity index

-

1.1

NES713