Dawn Group Co. , Ltd
中文 | English Dawn Share [ 002838 ]
Hydrogenated nitrile butadiene-acrylonitrile rubber (HNBR) is a highly saturated elastomer which is treated by catalytic hydrogenation of nitrile rubber (NBR). Compared with NBR, the molecular structure of HNBR contains a small amount or no carbon-carbon double bonds. The HNBR has better thermal oxygen aging, ozone resistance, radiation resistance, chemical medium resistance (acid, alkali, methane, refrigerant, hydrogen sulfide) and good dynamic properties than NBR, while maintains the oil resistance and wear resistance of NBR. The HNBR is a special rubber with excellent comprehensive properties, which is a national strategic material.
Currently, HNBR is widely used in aerospace, automotive industry, oil drilling, machinery manufacturing, textile & printing and other fields. It is mainly used in automobile fuel system components, auto transmission belts, drilling confinements, packer rubber of oil wells, submersible pump cable sheaths of ultra-deep wells, bops, directional drillings, stator motor matching hoses of offshore oil drilling platforms, seals of aeronautics and astronautics, tank track pads, foam cushioning materials, seals of nuclear industry, hydraulic pipes, air conditioning seal products, textile & printing rubber rollers, etc.
| DAWN Grade | Acrylonitrile content % | Mooney viscosity ML1+4, 100℃ | Iodine value mg/100mg | Hydrogenation degree % | Features and Application |
|---|---|---|---|---|---|
| DN4309 | 42-43% | 85-95 | ≤10 | 99 | Standard high-acrylonitrile, fully saturated grade with excellent heat resistance, oil resistance, and solvent resistance. Suitable for fuel-resistant hoses, industrial refrigerant hoses, diaphragms, and oil seals. |
| DN4329 | 42-43% | 85-95 | 23 | 94 | Standard high-ACN grade with excellent dynamic performance; suitable for sulfur vulcanization. Ideal for use in fuel hoses, diaphragms, and oil seals. |
| DN3608 | 36 | 90 | ≤10 | 99 | A special brand with medium and high ACN content, full saturation. Excellent heat resistance for use in synchronous O-rings, gaskets and seals, etc. |
| DN3618 | 36 | 87 | 14 | 97 | Standard medium & high ACN grade with excellent dynamic properties, oil resistance and processing, especially suited for synchronous belts , O-rings, gaskets, oil seals and oil industry accessories, etc. |
| DN3628 | 36 | 85 | 25 | 92 | Standard medium & high ACN grade with excellent dynamic properties and processing, especially suited for O-rings, gaskets, oil seals and oil industry accessories, etc. |
| DN3406 | 34 | 63 | ≤10 | 99 | A special brand with medium and high ACN content, full saturation. Excellent performance in heat resistance、medium resistance、processability and extrudability. Widely used in synchronous belts, rubber hoses & rollers, seals, etc. |
| DN3408 | 34 | 88 | ≤10 | 99 | A special brand with medium and high ACN content, full saturation. Excellent heat resistance for use in synchronous O-rings, gaskets and seals, etc. |
| DN3416 | 34 | 63 | 14 | 97 | Standard medium & high ACN grade with excellent dynamic properties and processing, especially suited for synchronous belts, O-rings, gaskets, oil seals and oil industry accessories, etc. |
| DN3418 | 34 | 88 | 14 | 97 | Standard of medium & high ACN grade with excellent comprehensive performance and low-pressure deformation characteristics. Suitable for O-rings, gaskets, oil seals and oil industry accessories. |
| DN3426 | 34 | 63 | 23 | 94 | Standard medium & high ACN grade with excellent dynamic properties and processing, especially suited for synchronous belts, O-rings, gaskets, oil seals and oil industry accessories, etc. |
| DN3428 | 34 | 88 | 23 | 94 | Standard medium & high ACN grade with excellent dynamic properties and processing, especially suited for O-rings, gaskets, oil seals and oil industry accessories, etc. |
| DN3438 | 34 | 88 | 33 | 91 | Standard medium & high ACN grade with low hydrogenation, especially suited for synchronous O-rings, gaskets, oil seals and oil industry accessories, etc. |
| DN3448 | 34 | 78 | 53 | 85 | Standard medium & high ACN grade. This low degree of hydrogenation product has excellent resistance to oil and chemical media, as well as good heat aging resistance and excellent dynamic fatigue performance. It has excellent processing performance and suited for O-rings, gaskets, oil seals and oil industry accessories, etc. |
| DN3404LX | 34（1） | 30 | ≤10（1） | 99（1） | Standard medium & high ACN grade with excellent dynamic properties and oil resistance, low Mooney viscosity, excellent processing performance, especially suited for synchronous belts, O-rings, gaskets, oil seals, etc. |
| DN3448L | 34（1） | 55 | 53（1） | 85(1) | Standard medium & high ACN grade. This low degree of hydrogenation product has low Mooney viscosity, excellent dynamic properties, oil resistance and processing performance, especially suited for synchronous belts, O-rings, gaskets, oil seals, etc. |
| DN3407A | 34（1） | 70 | ≤10（1） | 99（1） | Standard medium & high ACN grade. This product has excellent dynamic properties and oil resistance, excellent processing performance, especially suited for synchronous belts, rubber roller, O-rings, gaskets, oil seals, etc. |
| DN3428L | 34（1） | 47 | 23（1） | 94（1） | Standard medium & high ACN grade. This low degree of hydrogenation product has better demolding performance, especially suited for O-rings, gaskets, oil seals, etc. |
| Note: 1. (1) Basic polymers test date. 2. Above are typical value only, the specific parameter will be subject to our certificate of analysis. Address: New material and energy industrial park, Longkou city, Yantai city, Shandong Province. Tel: 0086-535-8831057 | |||||
