Ethylene Propylene Diene Monomer EPDM Rubber
Chemical Properties
Ethylene propylene diene monomer (EPDM) is a versatile synthetic rubber, especially in the automotive and construction industries. It's extremely durable and flexible. It has a single bond molecular structure, chemically saturated main chain, which makes it extremely resistant to outdoor conditions, which is due to the fact that UV and O₃ cannot split its single bond molecular structure like double bond rubber.
Specifications
| ITEM | TYPE | J-2070 | J-3080 (J-3080P) | J-3092E | J-4045 |
| Mooney viscosity | ML100℃ 1＋ 4 | 40-50 | |||
| Mooney viscosity | ML125℃ 1＋ 4 | 39-49 | 65-75 | 61.71 | |
| Ethylene | wt.% | 54.8—60.8 | 65.5-71.5 | 54.2-60.2 | 490-550 |
| ENB | % | 0.9-2.9 | 3.0-5.0 | 3.6-5.6 | 6.7-8.7 |
| Molecular weight | distribution | Narrow | Narrow | Narrow | Narrow |
| Oli content | phr | 17.0~23.0 | |||
| Vanadium content | ppm≤ | 10 | 10 | 10 | 10 |
| Volatile | %≤ | 0.75 | 0.75 | 0.75 | 0.75 |
| Ash content | %≤ | 0.1 | 0.1 | 0.1 | 0.1 |
Application
| Type | Property | Application | Remark |
| J-2070 | Mooney viscosity proper; proper cure rate; molecular weight distribution narrow; ethylene content proper; low temperature resistance good; process ability good; good blend ability with IIR | Make automotive inner tyre and gasbag (improving age-resistance and process ability) by blending with IIR; other rubber forming products. | Suit to blend with IIR. |
| J-3080, J-3080P | Mooney viscosity high; very fast cure rate; molecular weight distribution narrow; ethylene content high; high filler ability; good blend ability with PP | Resin flexibility modifier, automotive sealing strip; automotive hose; damper profiles; water-proof roll covers; plastic cement track; various extruding shaped products and sealing profile | Granular products are suited to blend with resin modifying flexibility. Highly effective in an improvement of filler quantity and a modification of profile appearance by blending with 3080. |
| J-3092E | Mooney viscosity high; very fast cure rate; low temperature-resistance good; molecular weight distribution narrow; ethylene content proper; process ability good | Automotive sealing strips; various hose; coldness-resistant profiles; bridge pedestal, railway coat and pad etc | Oil-extended EPDM. apparently modifying low temperature- resistance and flexibility by blending with 3092E. |
| J-4045 | Mooney viscosity proper; extraordinarily fast cure rate; molecular weight distribution wide; ethylene content proper; process ability excellent; good comprehensive property | Wire and cable etc. insulation profiles; sponge rubber; make tyre sidewall by blending with diene type series rubber; transparent rubber profiles; colorful rubber profiles and other various fast cure common rubber profiles. | Very fast cure rate common rubber |
