To produce hard, rigid rubber materials like Ebonite, what is the standard minimum mass percentage o — Polymers Chemistry Question

💡 Solution & Explanation

While tyre rubber requires about $5\%$ sulphur and battery casings use roughly $30\%$, the production of extremely rigid ebonite requires $40\%$ to $45\%$ sulphur to ensure massive cross-linking. The minimum in this standard range is 40.