Specification :

SBR1702 TEST PAPER
Item Specifiction Test Method
A B C
Volatile matter / %  m/ m
d0.60 d0.80 d1.00 GB/ T 6737-1997
Ash / %  m/ m
d0.50 GB/ T 4498-1997 A
Organic acid / %  m/ m
3.90-5.70 GB/ T 8657-2000
Soap / %  m/ m
d0.50
Bound styrene / %  m/ m
22.5-24.5 GB/ T 8658-1998
Oil / %  m/ m
25.3-29.3 24.3-30.3 SH/ T 1718-2002
Mooney viscosity
ML 1+ 4 100
44-54 43-55 42-56 GB/ T 1232.1-2000
Compound
ML 1+ 4 100
d70 GB/ T 1232.1-2000
ASTM IRB No.7
300%
 145 / MPa
300% Modulus 25min 9.8-13.8 9.3-14.3 GB/ T 8656-1998 A
ASTM IRB No.7
GB/ T 528-1998
35min 12.1-16.1 11.6-16.6
50min 13.0-17.0 12.5-17.5
Tensile strength
 145  35min / MPa
e19.4 e18.4
Elongation
 145  35min / %
e380 e370