vulcanization

2 ENTRIES FOUND:

vul·ca·ni·za·tion

noun \ˌvəl-kə-nə-ˈzā-shən\

Definition of VULCANIZATION

:  the process of treating crude or synthetic rubber or similar plastic material chemically to give it useful properties (as elasticity, strength, and stability)

First Known Use of VULCANIZATION

1846

vulcanization

noun    (Concise Encyclopedia)

Chemical process, discovered by Charles Goodyear (1839), by which the physical properties of natural or synthetic rubber are improved. It consists principally of heating rubber with sulfur; other substances (accelerators, carbon black, antioxidants, etc.) are also added. The sulfur does not simply dissolve or disperse in the rubber, but rather combines chemically, mostly in the form of cross-links (bridges) between the long-chain molecules; however, the reactions are not fully understood. Vulcanized rubber has higher tensile strength and resistance to swelling and abrasion, and is elastic over a greater range of temperatures.

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