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Vulcanized Rubber

Mrs. Heitz, 10th Grade 2013
by

Irwin Leventer

on 4 June 2013

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Transcript of Vulcanized Rubber

Vulcanized Rubber The vulcanization process was discovered by Charles Goodyear in 1839. Rubber back then was gooey and sticky when warm and brittle when cold. Goodyear ventured to make rubber not so sticky. He mixed it with magnesia, a very dry substance, and was successful in making non-stick rubber shoe soles. Discovery: To his disappointment though, the shoes couldn't withstand the heat of the summer, and the soles melted. This made him determined to work to make a stronger, better rubber. One day he went to the market to show off his new gum and sulfur formula. He got excited and waved it in the air, and it flew out of his hand onto the sizzling hot potbellied stove When he peeled it off, it felt rubbery and leather-like. What he had made was weatherproof rubber; vulcanized rubber. He then worked day and night to try to emulate the experiment. Finally, he was successful, and became known as the discoverer of Vulcanized Rubber under the 3,633 U.S. Patent. How it is made: Polyisoprene, which is natural rubber, is heated to 170 degrees Celsius for 10 minutes with Sulfur in a mold. The new rubber adopts the shape of the mold. Vulcanized Rubber Uses: Vulcanized rubber is used in many things. It is very important because it is waterproof and weatherproof, which is why is is such a perfect thing to use for: Tires, Shoe soles, Hoses, And Hockey pucks. Fun Facts: It all started with a rubber life preserver. Goodyear saw that it was weak, and he then sought to improve rubber. The Vulcanization process was named after the Roman god of fire, Vulcan, because Goodyear believed the idea was planted in his mind divinely. Goodyear didn't work for money. He worked to improve rubber, to better mankind. The man was swindled by a British businessman, and made absolutely no money off of his discovery. He worked tirelessly despite his ill health, and invented something that we use every day. Although he died a poor man, he made the world enriched with an amazing new substance. Thank You. http://servicesaetn-a.akamaihd.net/video/pdk/swf/AETNEmbedPlayer.swf?v=http%3A%2F%2Fservicesaetn-a.akamaihd.net%2Fpservice%2Fembed-player%2F%3FsiteId%3Dhist%26tPid%3D8995395675%26o%3Dflashvars The new vulcanized rubber is just as elastic as rubber that has not been vulcanized, yet it is ten times stronger than rubber on its own. It is also ten times more rigid than regular rubber. Sulfur Polyisoprene Shiny Yellow Thing Milky Water Black Square 170 Chemical Formula: Picture Formula:
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