1901Thermoplastic low-smoke halogen-free flame retardant UV-retardant polyolefin compound for anti termite cable sheath
Experiment item
|
Unit
|
Standard value
|
Typical value
|
Test method
|
1. Density
|
g/cm3
|
≤ 1.48
|
1.46
|
GB/T 1033
|
2. Tensile strength
|
MPa
|
≥11.5
|
12
|
GB/T 1040
|
3. Elongation at break
|
%
|
≥180
|
200
|
GB/T 1040
|
4.Aging110±2℃×240h
|
%
|
Max±25
|
+8
|
GB/T 2951
|
Change of tensile properties
|
%
|
Max±25
|
-10
|
GB/T 2951
|
Change of elongation properties
|
%
|
Max±25
|
-10
|
GB/T 2951
|
5. Thermal deformation(90℃ × 4h)
|
%
|
≤25
|
6
|
GB/T 8815
|
6. Brittleness temperature
|
℃
|
-25℃PASS
|
-40℃PASS
|
GB/T 5470
|
7. 20℃ DC volume resistivity
|
Ω•m
|
≥1×10^12
|
3.7×10^12
|
GB/T 1410
|
8. Electric strength
|
MV/m
|
≥20
|
25
|
GB/T 1408
|
9. Oxygen index
|
—
|
≤250
|
186
|
GB/T8323
|
10. Smoke density non-luminous flame Flame combustion
|
—
|
≤100
|
52
|
GB/T8323
|
11. Halogen acid gas content
|
mg/g
|
≤5
|
0
|
GB/T 17650
|
12.pH value
|
—
|
≥4.3
|
5.2
|
GB/T 17650
|
conductivity
|
μs/mm
|
≤10
|
1.1
|
GB/T 17650
|
13. Thermal shock(150℃ ×1h)
|
—
|
PASS
|
PASS
|
GB/T 2951
|
14. Artificial climate resistance aging test
|
GB/T14049-2008
|
|||
Aging after 42 days
|
||||
Change of tensile properties after aging
|
%
|
±30
|
18
|
|
Change of elongation properties after aging
|
%
|
±30
|
-13
|
|
Aging after 42 days compare with 21 days
|
||||
Change of tensile properties after aging
|
%
|
±15
|
10
|
|
Change of elongation properties after aging
|
%
|
±15
|
-9
|
|
15. Anti termite test
|
PASS
|
PASS
|
JB/T10696.9
|