Structure: |
 |
| Property: |
- Good heat resistance (especially in
melting point and distortiontemperature) so as to can be used at high temperature
continuouslyand have long time heat stability;
- High mechanical strength、low friction coefficient and abrasion proof;
- Low moisture absorption so as to has less effect on mechanism and stability after
saturation;
- PBT engineering plastics show inertia to the majority of chemicalmedicine except for hot
water and alkali;
- Good fluidity and easy machine-shaping, short cycle time and excellent surface lubricity
and lustre so as to can be made to wallthinness and complicated shape product;
- Include Ultra-resistance grade and can be used to special appliances;
- Flame retardance meeting the requirements of UL 94 standards (E139063). |
|
|
| Typical Application: |
- Illuminate electric Power adapter stock and base of
energy-saving light and lamps housing. |
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| Use
Method: |
-
Need to dry before injection molding, you can dry it at 120-130 ℃ for 4-5 hours
(material thickness
not exceeding 3 cm). |
| Injection Molding Condiction as Follows (only to Perference): |
| Item |
Unit |
Process coditions |
| Cylinder
Temperature |
Rear |
℃ |
230-245 |
| Middle |
℃ |
235-250 |
| Front |
℃ |
240-250 |
| Nozzle Temperature |
℃ |
240-260 |
| Material Temperature |
℃ |
240-260 |
| Mold Temperature |
℃ |
50-100 |
| Injection Pressure |
kg/cm2 |
700-1200 |
| Packing pressure |
kg/cm2 |
400-850 |
| Back Pressure |
kg/cm2 |
0-40 |
| Screw
Speed |
Rpm |
40-75 |
|
|
|
| Represented Value of PBT Resin According to ASTM as Follows: |
Property |
ASTM |
Unit |
4308
G0 |
4308
G10 |
4308
G15 |
4308
G20 |
4308
G30 |
Physical
Property |
Density |
D792 |
g/cm3 |
1.50 |
1.52 |
1.54 |
1.56 |
1.60 |
Water absorption
/23℃505RH |
D570 |
% |
0.10 |
0.10 |
0.10 |
0.10 |
0.10 |
Shrinkage |
D955 |
% |
2.0 |
0.8-1.9 |
0.7-1.7 |
0.6-1.5 |
0.4-1.1 |
Mechanical
property |
Tensile strength |
D638 |
MPa |
60 |
80 |
90 |
100 |
115 |
Elongation at break |
D638 |
% |
15 |
4 |
3 |
3 |
2 |
Flexural strength |
D790 |
MPa |
90 |
130 |
145 |
160 |
185 |
Flexural modulus |
D790 |
MPa |
2500 |
3500 |
4500 |
6000 |
9000 |
Izod impact strength |
Notched |
D256 |
J/m |
35 |
50 |
55 |
60 |
70 |
Un-notched |
D256 |
J/m |
200 |
250 |
300 |
350 |
450 |
Thermal
property |
HDT |
1.82Mpa |
D648 |
℃ |
60 |
185 |
190 |
200 |
205 |
0.46MPa |
℃ |
150 |
200 |
210 |
215 |
220 |
Combustibility
(1/16”) |
UL-94 |
__ |
V-0 |
V-0 |
V-0 |
V-0 |
V-0 |
Electrical
property |
Dielectric strength |
D149 |
Kv/mm |
21 |
21 |
21 |
21 |
21 |
Volume resistivity |
D257 |
Ω-mm |
1016 |
1016 |
1016 |
1016 |
1016 |
Dielectric constant (106Hz) |
D150 |
__ |
3.2 |
3.2 |
3.4 |
3.4 |
3.5 |
Dielectric loss constant(106Hz) |
D150 |
__ |
0.02 |
0.02 |
|
0.02 |
0.02 |
Characteristics |
__ |
___ |
Flame
retardant
grade |
10%
fibre rein
forced |
15%
fibre rein
forced |
20%
fibre rein
forced |
30% fibre rein
forced |
|
| Packing
and stockpile: |
25KG
plastic valve bag, storage in dry, well ventilated and keep out of sun. |
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