|
Description of products
KJWDZH-7035A KJWDZH-7035B KJWDZH-7035C is thermoplastic low smoke halogen free flame retardant sheath material. It has excellent mechanical and physical properties and flame retardant properties; application temperature -40℃ ~ 90℃. In accordance with RoHS directive and REACH regulations, applicable to power cable, communication window, control cable sheath layer.
Main performance indicators
|
Item
|
Unit
|
Technical requirements
|
|
KJWDZH-7035A
|
KJWDZH-7035B
|
KJWDZH-7035C
|
|
Density
|
g/cm3
|
<1.55
|
<1.5
|
<1.5
|
|
tensile strength
|
Mpa
|
210
|
210
|
210
|
|
elongation at break
|
%
|
>150
|
>150
|
>150
|
|
thermal ageing 110°Cx240h
|
tensile strength gradient
|
%
|
±25
|
±25
|
±25
|
|
elongation at break gradient
|
%
|
±25
|
±25
|
±25
|
|
thermal deformation 90°Cx5h
|
%
|
<50
|
<50
|
<50
|
|
dielectric strength
|
MV/m
|
>18
|
>18
|
>18
|
|
20°Cvolume resistivity
|
Q?m
|
>1x1O10
|
^1x1O10
|
>1x1O10
|
|
low temperature impact embrittlement temperature
|
°C
|
-40
|
-40
|
-40
|
|
oxygen index
|
%
|
>38
|
>35
|
>32
|
|
halogen acid gas content
|
mg/g
|
《5
|
《5
|
<5
|
|
pH value
|
/
|
>4.3
|
>4.3
|
>4.3
|
|
Electrical conductivity
|
Us/mm
|
<10
|
<10
|
<10
|
|
toxicity index
|
/
|
《5.0
|
<5.0
|
<5.0
|
|
smoke density
|
flameless
|
Ds max
|
<350
|
<350
|
<350
|
|
with flame
|
<100
|
<100
|
<100
|
|
heat cracking test 130°Cx7kgx1h
|
/
|
no cracking
|
no cracking
|
no cracking
|
|
flame retardant rating
|
/
|
A
|
B
|
C
|
Processing technology
This product processing performance is superior, suitable for extrusion pipe, half extrusion pipe, extrusion die extrusion. The length to diameter ratio of the extrusion screw is 18 ~ 25, the compression ratio is 3:1, and the temperature control in each area of the barrel should have a cooling device.
Notes
① Before processing, ensure that screw, barrel, hopper thoroughly clean, processing ID process is strictly prohibited to bring impurities.
② Once the raw materials are opened, it is recommended to use them within 24 hours. If the package is damaged, it should be dried before use.
|
