| ISSUED : October 1999
NANCAR®
2845
is a medium acrylonitrile
butadiene copolymer with medium oil resistance. It is polymerized at low
temperature and contains sufficient antioxidant for normal aging conditions. It
is a low Mooney version of NANCAR®
2865. It has low
Mooney viscosity, superior processing characteristics, fast curing rate, low
mold fouling, superior resilience properties and superior flowability.
NANCAR®
2845
is recommended for use in
applications requiring improved low temperature properties. It provides
excellent extrusions and general processing improvement.
|
POLYMER PROPERTIES
|
TYPICAL
VALUE
|
SPECIFICATION
|
TEST
METHOD
|
|
Bound
acrylonitrile, %
|
28
|
27
~ 29
|
NANTEX
E-001
|
|
Mooney
viscosity, ML1+4 @100oC
|
46
|
40
~ 50
|
ASTM
D-1646 |
|
Heat
loss, %
|
0.3
|
0
~ 0.5
|
ASTM
D-1416
|
|
Specific
gravity
|
0.97
|
|
|
Solubility
in MEK, %
|
100
|
|
|
Stabilizer
|
Non-staining
|
|
|
TEST RECIPE
: ASTM D-3187
|
PARTS
|
|
NANCAR®
2845
|
100.00
|
|
|
Zinc
Oxide,CATHAY CHEMICAL,3A Grade
|
3.00
|
|
|
Sulfur,
2% MgCO3 coated
|
1.50
|
|
|
Stearic
Acid, NBS SRM 372i
|
1.00
|
|
|
HAF
Black IRB#6
|
40.00
|
|
|
TBBS,
NIST 8384
|
0.70
|
|
|
Total
|
146.20
|
|
|
COMPOUND PROPERTIES,
UNCURED STOCK
|
TYPICAL
VALUE
|
TEST
METHOD
|
|
Compound
Mooney, ML1+4 @100oC
|
65
|
ASTM D-1646 |
|
COMPOUND PROPERTIES,
CURED @150oC
|
MINUTES
|
TYPICAL
VALUE
|
TEST
METHOD
|
|
Tensile
Strength, Kg/cm2
|
20
|
281
|
ASTM
D-412
|
|
40
|
282
|
|
60
|
278
|
|
Elongation,
%
|
20
|
680
|
ASTM
D-412
|
|
40
|
640
|
|
60
|
610
|
|
Modulus
at 300% Elongation, Kg/cm2
|
20
|
87
|
ASTM
D-412
|
|
40
|
92
|
|
60
|
99
|
|
Hardness,
Durometer A, points
|
20
|
70
|
ASTM D-2240
|
|
40
|
71
|
|
60
|
72
|
|
Tear
Strength, C type, Kg/cm
|
40
|
59
|
ASTM
D-624
|
|
Compression
Set, 100oCx70hrs,
%
|
60
|
55
|
ASTM
D-395
|
|
AGING PROPERTIES,
CURED@150oCx40
MINUTES
|
TYPICAL
VALUE
|
TEST
METHOD
|
|
ASTM
#1 Oil Immersion, @ 100oCx70hrs
|
|
ASTM
D-471
|
|
Tensile
strength change, %
|
-15
|
|
Elongation
change, %
|
-25
|
|
Hardness
change, points
|
0
|
|
Volume
change, %
|
+2.0
|
|
|
|
|
|
IRM
903 Oil Immersion, @ 100oCx70hrs
|
|
ASTM
D-471
|
|
Tensile
strength change, %
|
-34
|
|
Elongation
change, %
|
-30
|
|
Hardness
change, points
|
-13
|
|
Volume
change, %
|
+22.7
|
|
|
|
|
|
Test
Tube Heat Aging, @ 100oCx70hrs
|
|
ASTM
D-865
|
|
Tensile
strength change, %
|
-9
|
|
Elongation
change, %
|
-30
|
|
Hardness
change, points
|
+4
|
NANCAR®
is the registered trade mark of nitrile
rubber manufactured by NANTEX INDUSTRY CO., LTD.
|
