The Role of Carbon Black in Oil-Resistant Rubber Hoses

Carbon black serves as a crucial reinforcing agent in the rubber industry, with applications ranging from tires to specialized rubber products. In the production of oil-resistant rubber hoses using nitrile reclaimed rubber, the selection and usage of carbon black play a pivotal role in ensuring the hose's performance.

Influence of Carbon Black Content on Oil Resistance

The amount of carbon black used significantly impacts the oil resistance of nitrile reclaimed rubber hoses. Firstly, increasing the carbon black content reduces the volume fraction of rubber in the compound, thereby enhancing the hose's oil resistance to a certain extent. Secondly, carbon black with high activity increases the cross-link density within the rubber matrix, strengthening the intermolecular bonds and improving the compound's resistance to oil penetration and swelling.

Types of Carbon Black and Their Applications

Different types of carbon black are employed in the production of oil-resistant hoses based on specific performance requirements. Hard, high-wear carbon black is often used in conjunction with soft, semi-reinforcing, and easy-extruding carbon black. Soft carbon black is preferred for hoses requiring high processing performance, while easy-extruding carbon black ensures dimensional stability and a smooth surface finish. The outer layer of oil-resistant hoses commonly utilizes semi-reinforcing furnace black.

Conclusion

In summary, the strategic use of carbon black is essential for optimizing the oil resistance and overall performance of nitrile reclaimed rubber hoses. By carefully selecting the type and amount of carbon black, manufacturers can produce hoses that meet stringent performance standards and deliver reliable service in demanding applications.