| Features | heat resistance, aging resistance and wear resistance |
| Application | household necessities, medical care |
Item |
Index |
Test method |
Result |
Conclusion |
|
Superior product |
Qualified product |
||||
Appearance |
Non-polluting block light-colored glue, free of coking particles, sand and mechanical impurities. |
Visually |
Normal |
Superior |
|
Volatile matter(%)≤ |
0.60 |
0.90 |
GB/T 24131.1- 2018,hot roll method B2 |
0.16 |
Superior |
Organic acid(%) |
4.50~6.75 |
GB/T 8657- 2014 ,B method |
6.16 |
Superior |
|
Soap content(%)≤ |
0.40 |
0.04 |
Superior |
||
Bound styrene(%) |
22.5~24.5 |
GB/T 8658-1998 |
23.7 |
Superior |
|
Raw Rubber Mooney Viscosity , ML(1+4)100℃ |
45~55 |
44~56 |
GB/T 1232.1- 2016,Over roll method |
50~51 |
Superior |
Compound Mooney Viscosity， ML(1+4)100℃≤ |
93 |
GB/T 1232.1- 2016(ASTM IRB No.8) |
71 |
Superior |
|
300% Stress at modulus (145℃,35min)(MPa) |
16.6~20.6 |
16.1~21.1 |
GB/T 8656-2018 A ( ASTM IRB No.8), GB/T 528-2009(1 cut knife) |
18.0 |
Superior |
Tensile Strength (145℃,35min)(MPa)≥ |
24.5 |
23.5 |
25.8 |
Superior |
|
Elongation at break (145℃,35min)(%)≥ |
350 |
340 |
401 |
Superior |
|
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