Studies on the rheological properties of cashew nut shell powder (anacardium accidentale) and carbon black on natural rubber vulcanisates

Author(s): P.A.P.Mamza, I.A.Okele, P.O.Nkeonye

Cashew nut shell powder (CNSP) and carbon black were utilized as filler in Natural rubber vulcanizates. The CNSP was characterized in terms of pH and vulcanized using efficient vulcanization systemand compared with commercial filler (NNPC carbon black). The cure characteristics revealed that samples filled with carbon black has a better and lower cure time than those filled with CNSP. The samples filled with carbon black needed higher torques than those filled with CNSP which is an indication of higher viscosity with compounds of carbon black than those with CNSP.

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