13

Click here to load reader

Natural rubber, synthetic rubber and neoprene rubber

  • Upload
    cmc1b

  • View
    1.425

  • Download
    23

Embed Size (px)

DESCRIPTION

Materials: Natural rubber, synthetic rubber and neoprene rubber

Citation preview

Page 1: Natural rubber, synthetic rubber and neoprene rubber

NATURAL RUBBER, SYNTHETIC RUBBER

AND NEOPRENE RUBBER

Irene Barroso and Marta Sánchez

Page 2: Natural rubber, synthetic rubber and neoprene rubber

NATURAL RUBBERDESCRIPTION• Elastic polymer.• It comes from latex.• Trees: Hevea Brasiliensis and Castilloa

elástica.• Elastic, water repellent and electric

resistent.

Page 3: Natural rubber, synthetic rubber and neoprene rubber

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.

Page 4: Natural rubber, synthetic rubber and neoprene rubber

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

Page 5: Natural rubber, synthetic rubber and neoprene rubber

NATURAL RUBBER

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

Page 6: Natural rubber, synthetic rubber and neoprene rubber

SYNTHETIC RUBBERDESCRIPTION

• Artificial elastomer.

• Obtained mainly from petroleum.

• Elastic material.

• Good qualities and cheap.

• It is recyclable.

Page 7: Natural rubber, synthetic rubber and neoprene rubber

SYNTHETIC RUBBERHISTORY

• 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.

Page 8: Natural rubber, synthetic rubber and neoprene rubber

SYNTHETIC RUBBERPROPERTIES

• 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.

Page 9: Natural rubber, synthetic rubber and neoprene rubber

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

Page 10: Natural rubber, synthetic rubber and neoprene rubber

NEOPRENEDESCRIPTION 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.

Page 11: Natural rubber, synthetic rubber and neoprene rubber

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.

Page 12: Natural rubber, synthetic rubber and neoprene rubber

NEOPRENE

RECLYCLING• Waste burying techniques.• Incineration.• Some brands do recycling processes.• Using old neoprene to create shoes,

t-shirts…

Page 13: Natural rubber, synthetic rubber and neoprene rubber

NEOPRENE

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