Carbon black, with its higher volatile content, acts as a free radical and effectively inhibits the chain reaction that leads to the decomposition of high-density polyethylene (HDPE). As a result, it provides an additional increment of ultraviolet (UV) absorption. Prolonged exposure to UV rays in sunlight breaks the molecular chains of PE, generating free radicals. Carbon black serves as the most economic UV stabiliser.

By compounding an appropriate quality of carbon black, ensuring proper dispersion and distribution with polyethylene, it becomes possible to prevent UV degradation of pipes for several years, even when stored in open sunlight. In the context of butyl inner tubes, carbon black can improve the processing performance of the rubber compound and improve its comprehensive index, particularly its mechanical properties. It boosts the elongation and elasticity of the rubber in the butyl inner rubber compound, reduces heat generation, and enhances the ageing resistance of the rubber compound. Additionally, its elasticity and resilience make it an ideal reinforcing agent.

Profiles are employed to protect vehicle interiors from rainwater, dust, and noise. They are manufactured using a special extrusion forming process that involves compressing, melting, and extruding solid-state rubber material, which is influenced by slip conditions at the inner wall of the head, shear viscosity, and flow vorticity. We offer products that meet the industry’s requirements for flow profiles, streamlines, and temperature distribution.