Description of products
KJWDZH-7032A. KJWDZH-7032B. KJWDZH-7032C is thermoplastic low smoke halogen free flame retardant sheath material. The product has excellent mechanical and physical properties and flame retardant performance, the operating temperature of -40°C~70°C, in line with RoHS directive and REACH regulations related requirements, suitable for power cable, communication cable, control cable sheath layer.
Main performance indicators
Item
|
Unit
|
Technical requirements
|
KJWDZH-7032A
|
KJWDZH7032B
|
KJWDZH-7032C
|
density
|
g/cm3
|
<1.5
|
<1.5
|
<1.5
|
tensile strength
|
Mpa
|
>10
|
>10
|
>10
|
elongation at break
|
%
|
>150
|
>150
|
>150
|
thermal ageing
|
tensile strength gradient
|
%
|
±25
|
±25
|
±25
|
100°Cx168h
|
elongation at break gradient
|
%
|
±25
|
±25
|
±25
|
thermal deformation 70°Cx5h
|
%
|
<50
|
<50
|
<50
|
dielectric strength
|
MV/m
|
>18
|
>18
|
>18
|
2(rc volume resistivity
|
Qm
|
>1x1O,0
|
>1x1O,0
|
>1x1O,0
|
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
|
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.
Model
|
barrel temperature
|
head temperature
|
KJWDZH-7032A/KJWDZH-7032B/KJWDZH-7032C
|
130~140°C
|
150-160°C
|
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.
|