| 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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| 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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