Nondegradable polymers chemical structure

Besides reinforcement for rubber, the principal functions that carbon black imparts to a compoimd material are color, ultraviolet damage resistance, electrical conductivity, nondegradation of polymer physical properties, and ease of dispersion. The carbon blacks used for these purposes are classified as special-grade blacks. Smaller volume applications exploit other principal attributes, such as chemical inertness, thermal stability, and an open porous structure. The secondary attributes include chemical and physical purity, low affinity for water adsorption, and ease of transportation and handling. 

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