|
POLYAMIDE
6-66 | PBT
| ABS
| POLYCARBONATE
| POLYPROPYLENE
| SAN
| ABOUT
POLYBUTYLENE TEREPHTHALATE ( PBT ) |
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PBT
is a semi-crystalline thermoplastic polyester with high temperature
resistance and chemical resistance. It was brought into the
market in 1970 by Hoechst Celanese. PBT is manufactured by
the polycondensation reaction between terephthalic acid &
1,4-butanediol. Improvement in properties is achieved by adding
additives like antioxidants to improve oxidative stability
and substituted hydrazines for high breakdown voltage resistance.
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Burns
with orange-yellow flame with blue edge, and as it burns it
drips and gives off black smoke with soot. The characteristics
odour is one of burning Rubber. Density value of this material
is 1.34.
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|
 High
strength & rigidity
Excellent
dimensional stability
Low
co-efficient of friction
Good
abrasion resistance
Good
resistance to creep at ambient & elevated temperatures
Low
moisture absorption
Resistance
to weak acids, bases, alcohols, ketones, oils, fats and aliphatic
Hydrocarbons
Good
resistance to motor oil, gasoline and brake fluids
High
temperature resistance
Excellent
flame resistance
Good
electrical resistance
High
arc resistance & dielectric strength Low
dissipation factor
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| APPLIANCES
: |
Iron
& Toaster housing, Electric Casseroles, Vacuum Cleaner
housing, Food Processor blades, Mixer & Coffee maker housing.
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| AUTOMOTIVE
: |
Bumpers,
Slide bearing, Roller bearings, Cams, Impellers, Pump
castings, Reflector for spot light, Air conditioning valves,
Vacuum actuators, Fender Extensions, Speedometer Frame
& Gears. |
| ELECTRICAL
/ ELECTRONICS : |
Fuse
holders, Coil bobbins, LED electronics displays, Light
Sockets, TV tuners, Fuse cases, Push buttons, Switches,
Fiber optic Cable, Connectors, High Voltage Components,
Relays & Potentiometers. |
| INDUSTRIAL
: |
Pump
housings, Impellers, Mechanical valve brackets, Water
meter, components, Tool housing, Conveyor belt segments. |
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| GRADES
OF POLYBUTYLENE
TEREPHTHALATE ( PBT ) |
|
| Glass Filled PBT |
Filler
range from 5% to 30% in Natural and Colours. |
| Mineral Filled PBT |
Filler
range from 5% to 30% in Natural and Colours. |
| Flame Retardant PBT with V0 rating |
In
all colours |
| Alloy of PBT with Talc |
In
Natural and all colours |
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| |
Properties |
Test
Method
ASTM |
Unit |
Unfilled
PBT
|
Unfilled
PBT + FR |
GF
PBT
|
GF+FR
PBT
|
MF
PBT
|
MF+GF
PBT |
| (A) |
Mechanical |
| |
Impact
Strength |
D
256 |
ft-lb/om |
0.7-1.0 |
0.5-0.8 |
0.9-2.2 |
1-1.5 |
1-1.9 |
0.7-1 |
| |
Flexural
Stength |
D
790 |
1000Psi |
12-12.4 |
12.8-14.7 |
21-30 |
21-30 |
12.5-18 |
16-20 |
| |
Elongation
At Break |
D
638 |
% |
5-300 |
15-80 |
2-6 |
1-6 |
3-150 |
3-4 |
| |
Tensile
Strength |
D
638 |
1000Psi |
7.5-8.5 |
8 |
12.5-20 |
13-19.5 |
7.1-9 |
9.5-12.5 |
| (B) |
Thermal |
| |
Heat
Deflection Temp |
D
648 |
0F |
123-130 |
135-160 |
375-405 |
360-406 |
150-385 |
340-390 |
| |
Flammability
Rating |
UL94 |
- |
- |
V-0 |
- |
V-0 |
- |
- |
| (C) |
Electrical |
| |
Dielectric
Strength |
D
149 |
v/mil |
400-420 |
350-470 |
450-560 |
410-570 |
390-600 |
500-600 |
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Notice:
The Information and Properties indicated above are typical
values obtained & should not be construed as specifications.
This information is presented in good faith, and is
believed to be accurate & reliable. However the
Company assumes no obligation or liability thereof (express
or implied).
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