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Sulfur forms cross-linking bridges between sections of polymer chains which affects the mechanical and electronic properties. [citation needed] Many products are made with vulcanized rubber, including tires, shoe soles, hoses, and conveyor belts. The term vulcanization is derived from Vulcan, the Roman god of fire.
In ancient Mesoamerican cultures, rubber was used to make balls, sandal soles, elastic bands, and waterproof containers. [4] It was cured using sulfur-rich plant juices, an early form of vulcanization. [5] In the 1830s, Charles Goodyear worked to devise a process for strengthening rubber tires. Tires of the time would become soft and sticky ...
The sulfur chains attach themselves to the allylic carbon atoms, which are adjacent to C=C linkages. Vulcanization is a step in the processing of several classes of rubbers, including poly chloroprene ( Neoprene ), styrene-butadiene, and poly isoprene , which is chemically similar to natural rubber.
In this form, the polyisoprene molecules orientation is still random but they become aligned when the rubber is stretched. This sulfur vulcanization makes the rubber stronger and more rigid, but still very elastic. [49] And through the vulcanization process, the sulfur and latex are meant to be totally used up in individual form.
The resulting process is called sulfur vulcanization. Sulfur breaks down to form polysulfide cross-links (bridges) between sections of the polymer chains . The degree of crosslinking determines the rigidity and durability, as well as other properties of the material.
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The NFL playoffs are finally here! Check out this printable bracket to follow all the excitement leading up to Super Bowl LIX.
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