 |
PA9T is based on homo-polymer
(melting point 306 ℃ , glass transition temperature 125).
When compared to other heat resistant polyamides, it has
several superior features such as low moisture absorbency,
high chemical resistance and superior dimensional stability.
PA9T is made from original
monomer diamine (nonanediamine) in which the carbon number
is 9. The chemical the constitution of PA9T is half aromatic
polyamide from aromatic core and a long hydrocarbon as shown
below.
Characteristics of PA9T
- The water absorbency of PA9T is the lowest among
high heat resistant polyamides.
- PA9T has superior heat resistance (blister resistance)
and corresponds well to lead-free solder.
- PA9T keeps its superior mechanical properties
at higher temperatures.
- Due to its low water absorption, PA9T has a superior
dimensional stability.
- Compared to other heat resistant polyamides, the
electric properties of PA9T are stable for its low
water absorbency.
- PA9T has superior chemical resistance in the class
of heat resistant polyamides.
- PA9T also shows superior abrasion resistance,
as do other polyamides as a typical property.
- The regrind of PA9T can be taken at 30-50% percentage
with new virgin.
|
| Applications
in PA9T
Connectors, Jacks, Switches, Power
terminal, Various electric case, Cylinder head covers,
Auto parts, Thermostat cases, Hydraulic pistons, Oil
pump housing, Light-load tribological parts, OA equipments,
Cooling system parts, Roller parts, Pulley parts.
|
測試項目
Test items
|
測試標準
Test Standard
|
單位
Units
|
GF30-V0
|
GF40-V0
|
填充物含量
Glass Fibre |
-
|
%
|
33
|
43
|
比重
Specific Gravity |
ASTMD792
|
-
|
1.67
|
1.76
|
吸水率
Water Absorption |
ASTMD570
|
%
|
0.08
|
0.1
|
抗拉強度
Tensile Strength |
ASTMD638
|
Mpa
|
105
|
113
|
斷裂伸長率
Elongation |
ASTMD638
|
%
|
3.2
|
2.8
|
彎曲強度
Flexural Strength |
ASTMD790
|
Mpa
|
220
|
240
|
彎曲模量
Flexural Modulus |
ASTMD790
|
Mpa
|
11500
|
14500
|
缺口衝擊強度
IZOD Notched Impact strength |
ASTMD256
|
J/M2
|
100
|
95
|
洛式硬度
Rockwell Hardness |
ASTMD785
|
R
|
105
|
105
|
熱變形溫度
Heat Deflection Temp
|
ASTMD648
|
°C
|
285
|
290
|
阻燃性
Flammability Rating |
S G S
|
UL-94
|
V-0
|
V-0
|
成型收縮率3mm厚 MD
Moulding Shrinkage TD |
-
|
%
|
0.1
0.6
|
0.18
0.5
|
以上數值係參考ASTM方法所測得，僅供選擇用途品級參考
All tests were run under laboratory conditions
ASTM testing Procedures,The data are intended
as general guide only. |
|
|
