Description of products
KJWDZ-YJ-H90 x KJWDZ-YJ-H105 . KJWDZ-YJ-H125 . KJWDZ-YJ・H150 是可辐照交联低烟无卤阻燃护套 料。不含汞,铅,铭,镣,镒,镉六大重金属,其各项性能符合RoHS指令和REACH法规的相关要求。产品具有 良好的阻燃性能物理机械性能和较好的耐温性能。适用于通信电缆、控制电缆和电力电缆的护套层。
Main performance indicators
Item
|
Unit
|
Technical requirements
|
KJWDZ-YJ-H 90
|
KJWDZ-YJ-H 105
|
KJWDZ-YJ-H 125
|
KJWDZ-YJ-H 150
|
Density
|
g/cm3
|
<1.55
|
<1.55
|
£1.55
|
G.55
|
tensile strength
|
Mpa
|
>10
|
>10
|
>10
|
>10
|
elongation at break
|
%
|
>150
|
>150
|
>150
|
>150
|
thermal ageing condition
|
|
120°Cx168h
|
135°Cx168h
|
158°Cx168h
|
180°Cx168h
|
tensile strength gradient
|
%
|
±25
|
±25
|
±25
|
±25
|
elongation at break gradient
|
%
|
±25
|
±25
|
±25
|
±25
|
thermal extension 200°C*15min *0.2MPa
|
elongation under load
|
%
|
<100
|
<100
|
<100
|
<100
|
permanent deformation after cooling
|
%
|
<25
|
<25
|
<25
|
<25
|
dielectric strength
|
MV/m
|
>18
|
>18
|
>18
|
>18
|
20°Cvolume resistivity
|
Q・m
|
>1x1010
|
>1x1010
|
>1x10,0
|
>1x10,0
|
low temperature impact embrittlement temperature
|
°C
|
-30
|
-30
|
-30
|
-30
|
oxygen index
|
%
|
>32
|
>32
|
>32
|
>32
|
halogen acid gas content
|
mg/g
|
<5
|
<5
|
<5
|
<5
|
pH value
|
/
|
>4.3
|
>4.3
|
>4.3
|
>4.3
|
Electrical conductivity
|
Us/mm
|
<10
|
<10
|
<10
|
<10
|
toxicity index
|
/
|
<5.0
|
<5.0
|
<5.0
|
<5.0
|
smoke density
|
flameless
|
Ds max
|
<350
|
<350
|
<350
|
<350
|
with flame
|
<100
|
<100
|
<100
|
<100
|
Processing technology
This product processing performance is superior, suitable for extrusion pipe, half extrusion pipe, extrusion die extrusion. The length-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
|
KJWDZ-YJ-H90、KJWDZ-YJ-H105、 KJWDZ-YJ-H125 . KJWDZ-YJ-H 150
|
130~140°C
|
150-160°C
|
Notes
① Before processing, ensure that screw, barrel, hopper thoroughly clean, processing H 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.
|