Befähigungsprüfung Vulkaniseur Practice Questions - Befähigungsprüfung Vulkaniseur (Austria) Exam

Sulfur forms covalent mono-, di-, and poly-sulfidic cross-links between unsaturated carbon-carbon double bonds in adjacent polymer chains, converting plastic raw rubber into an elastic, dimensionally stable network. Sulfur dissolves the polymer chains into a liquid solution that evaporates at room temperature. Sulfur oxidizes carbon atoms into carbon dioxide gas to create foam bubbles inside the rubber. Sulfur chemically converts natural rubber into pure metallic iron.