|
POLYAMIDE 6-66 | PBT
| ABS
| POLYCARBONATE
| POLYPROPYLENE
| SAN
| ABOUT
STYRENE - ACRYLONITRILE (SAN) |
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|
Styrene - acrylonitrile is a random copolymer of styrene and
acrylonitrile. It is a stiff & brittle thermoplastic with
good impact strength, chemical resistance and excellent clarity.
It was commercialised in the year 1937 by I.G.Farben Industrie.
SAN is manufactured by the addition polymerisation of styrene
and acrylonitrile monomers. It is produced by three different
polymerisation techniques, viz. emulsion, suspension and continuous
mass polymerisation. As bulk polymerisation is hazardous,
continuous mass process is found to be economical. Lower temperature
results in high molecular weight compounds whereas high temperature
results in low molecular weight compounds whereas high temperature
results in low molecular weight compounds.
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| It
Burns with black and sooty flame and it is highly brittle |
|
 Excellent
dimensional stability
Good impact strength
Better
resistance to stress cracking and crazing
Excellent
tensile and flexural strengths
Good
abrasion resistance
Very
high creep resistance
High
chemical resistance
Resistant
to water, aqueous acids and alkalies
Does
not react with bleaches and detergents
High
gloss High
heat resistance
High
softening point
Continuous
use temperature is upto 90șC
Rigid
than PS Water
absorption is 10 times greater than PS
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| INDUSTRIAL
: |
Battery cases, Window panel, Storm door panels, Paint
jars. |
| AUTOMOTIVE
: |
Lenses,
Instrument panels ,Speedometer cover, Instrument panels
support. |
| APPLIANCES
: |
Washing
machine drain connectors, Vacuum cleaner parts, Humidifier
parts, Casseroles, Juicers, Mixer jars. |
| MEDICAL
: |
Syringes,
Blood aspirators, Kidney dialysis devices, IV connectors,
Filter cases. |
| ELECTRICAL
/ELECTRONIC : |
Cassettee
cases, Meter Lens, Computer reels, Telephone parts, Terminal
boxes. |
| PACKAGING
: |
Cosmetic packaging, Spray nozzles, Lipsticks cases, Display
racks & boxes. |
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| GRADES
OF STYRENE - ACRYLONITRILE (SAN)
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|
| Unfilled |
In
All Colours |
| Glass Filled S A N |
Filler
range from 5% to 20%. |
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| |
Properties |
Test
Method
ASTM |
Unit |
Glass
Filled
SAN |
| (A) |
Mechanical |
| |
Impact
Strength |
D
256 |
ft-lb/in |
3-5 |
| |
Flexural
Strength |
D
790 |
1000
Psi |
20-25 |
| |
Elongation
At Break |
D
638 |
% |
1.2-1.5 |
| |
Tensile
Strength |
D
638 |
1000Psi |
16-19 |
| (B) |
Thermal |
| |
Heat
Deflection Temp |
D
648 |
0F |
220 |
| |
Coeffiecient
of Thermal Expansion |
D
696 |
- |
1.6 |
| (C) |
Electrical |
| |
Dielectric
Strength |
D
149 |
v/mil |
515 |
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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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