Butadiene rubber
Properties
The product is a kind of white or light yellow solid it has the advantages of large elasticity , less hysteresis loss and heat-generation , low temperature , good filling in fluidity in the mould . Perfect friction-proof and flexure resistance .
Applications
Butadiene rubber products are widely used to make tires ,adhesive tapes , adhensive tubes ,sealing rings , shoe soles and other rubber products .
Package ,transportation and storage :
Products are packaged with PE film , the craft paper with the lining of PP woven bag is used outside of the PE film , 25-kg net weight for each ,the transportation vehicles should be kept clean dry . Throwing is not allowed during handling , which is to prevent the packing from breaking . A clean ,dry and good ventilating warehouse is needed . The products should be kept far from fire and it is forbidden to be exposed in sunshine and rain .
Items | The quality index | Test method
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| Premium | First | Qualified |
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The mass fraction of volatile matter % ≤ | 0.50 | 0.80 | 1.10 | GB/T 6737-1997 |
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Total ash % ≤ | 0.20 | 0.20 | 0.20 | GB/T 4498-1997 |
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Raw rubber viscosity ML(1+4) 100℃≤ | 45±4 | 45±4 | 45±7 | GB/T 1232.1-2000 |
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Mixed rubber viscosity ML(1+4) 100℃ ≤ | 63 | 65 | 68 | GB/T1232.1-2000 GB/T8660-1998 |
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300% fixed tensile strength Mpa | 25 min | 7.0-11.3 | 7.5-11.5 | 7.5-11.5 | GB/T8660-1998 |
| 35 min | 8.5-11.5 | 8.2-11.7 | 8.5-11.7 | GB/T8660-1998 |
| 50 min | 8.2-11.2 | 7.9-11.4 | 7.9-11.4 | GB/T8660-1998 |
Tensile strength ,（35min）,MPa ≥ | 15.0 | 14.5 | 14.0 | GB/T8660-1998 |
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Elongation at break （35min）%≥ | 385 | 365 | 365 | GB/T8660-1998 |
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