HNBR - Hydrogenated Nitrile Butadiene Rubber

HNBR (Hydrogenated Nitrile Butadiene Rubber) compound properties can vary depending on the specific formulation and the intended application. Rubber compounds are typically created by combining the base polymer (HNBR) with various additives and fillers to achieve desired performance characteristics. Here are some common properties and considerations of HNBR rubber compounds:

1. Heat Resistance: HNBR rubber has excellent heat resistance, allowing it to withstand high temperatures without significant degradation. It can typically operate within a temperature range of -30°C to +150°C (-86°F to +302°F), making it suitable for various industrial applications.

2 Hardness: HNBR compounds can be formulated to have a wide range of hardness levels, typically measured on the Shore A or Shore D scales. The hardness of the compound affects its flexibility, compression resistance, and sealing capability.

3. Tensile Strength: The addition of reinforcing agents and fillers in HNBR compounds can enhance their tensile strength. Higher tensile strength allows the compound to withstand stretching forces without breaking.

4. Elongation at Break: Elongation at break measures the ability of the rubber compound to stretch before it reaches its breaking point. Depending on the specific application, HNBR compounds can be formulated to have different elongation properties.

5. Compression Set: Compression set refers to the ability of the rubber compound to recover its original shape after being compressed for a prolonged period. A low compression set is desirable for applications where the material needs to maintain its sealing or cushioning properties under pressure.

6. Chemical Resistance: HNBR compounds are known for their excellent resistance to oils, fuels, and many chemicals. However, the specific resistance to different chemicals can vary depending on the compound formulation and the nature of the chemicals involved.

7. Temperature Resistance: HNBR compounds exhibit good resistance to elevated temperatures. The specific temperature range that a compound can withstand without significant degradation will depend on its formulation and additives.

8. Abrasion Resistance: The inclusion of fillers, such as carbon black or silica, in HNBR compounds can improve their resistance to abrasion. This property is crucial for applications where the material comes into contact with rough surfaces or experiences frequent friction.

9. Flexibility and Low-Temperature Performance: HNBR compounds can be formulated to retain flexibility at low temperatures, making them suitable for applications in cold environments. The specific low-temperature performance will depend on the compound formulation.

10. Aging and Weathering Resistance: HNBR compounds typically exhibit good resistance to aging and weathering effects, such as ozone and UV radiation. This property ensures the long-term durability of the material when exposed to outdoor or harsh environmental conditions.

It is important to note that the specific properties of HNBR rubber compound can vary depending on the compound formulation.

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