Natural rubber, synthetic rubber and neoprene rubber

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Information about Natural rubber, synthetic rubber and neoprene rubber
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Published on February 24, 2014

Author: cmc1b

Source: slideshare.net

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Materials: Natural rubber, synthetic rubber and neoprene rubber

NATURAL RUBBER, SYNTHETIC RUBBER AND NEOPRENE RUBBER Irene Barroso and Marta Sánchez

NATURAL RUBBER DESCRIPTION • Elastic polymer. • It comes from latex. • Trees: Hevea Brasiliensis and Castilloa elástica. • Elastic, water repellent and electric resistent.

NATURAL RUBBER HISTORY • Discovered by the mayans and aztecs. • Banned in the 15th century. • La Condamine rediscovered it in 1735. • It was a success in Europe. • In 1791 it was first commercialized.

NATURAL RUBBER RECYCLING • Different processes to recycle it. • Very flammable. • It creates pollution. • Cause of diseases. • E.g: Rubber floors for parks.

NATURAL USES • Tires. • Wheel rims. • Hoses. • Conveyor belt. RUBBER

SYNTHETIC RUBBER DESCRIPTION • Artificial elastomer. • Obtained mainly from petroleum. • Elastic material. • Good qualities and cheap. • It is recyclable.

SYNTHETIC RUBBER HISTORY • Created in 1909 by Fritz Hofmann. • Similar structure to natural rubber. • People were very pleased. • Cheaper than natural rubber. • 2/3 of today’s rubber is synthetic.

SYNTHETIC RUBBER PROPERTIES • Solid, flexible, durable. • It hardens when it’s cooled. • It can be molded when heated. • Resistant to heat, light and chemicals. • Heat and electrical insulator.

SYNTHETIC RUBBER USES • Car tires. • Flexible rubber toys. • Paint. • Shoe soles. • Rubber gloves. • Tubes and hoses.

NEOPRENE DESCRIPTION AND PROPERTIES • Synthetic rubber. • It’s produced by polymerization of chloroprene. • It has good chemical stability. • Flexible over a wide temperature range. • It is colourless. • Resistant to sun, climate and ozone deterioration.

NEOPRENE ORIGINS AND HISTORY • It was invented by DuPont scientist (1930). • First name: DuPrene. • It smelled bad and was expensive. • Problems were solved and was a success. • It name was changed to neoprene.

NEOPRENE RECLYCLING • Waste burying techniques. • Incineration. • Some brands do recycling processes. • Using old neoprene to create shoes, t-shirts…

NEOPRENE USES • Laptop sleeves. • Wetsuits. • Small boats. • Boots.

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