Rubber
Rubber is a flexible material made from the sap (latex) of some tropical plants or from petroleum and natural gas. Natural rubber produced from the sap of trees, synthetic rubber produced from petroleum products. Both types are versatile substances. Items made of rubber are often referred to as tyres.
The rubber tree (Hevea brasiliensis), whose homeland is South America, grows mostly in Brazil, Ceylon, Mexico, Java Island, Central and East Africa. For hundreds of years, natural rubber has been obtained by making scratches on the rubber tree, collecting the sap flowing in the form of milk, leaving this water to dry and hardening, and then using it with various treatments. During the 20th century, advances in chemistry allowed the artificial version to be made using rubber in oil. Two-thirds of the 18 million tons of rubber produced each year is synthetic.
The origin of the word, which passed from French to Turkish, is the word kauchuk in the Quechua language. Rubber is called “rubber” or “Indian eraser” in some Western languages. The reason for this is that it was brought to Europe from India in 1744 and was used only as a writing eraser in the first place.
Rubber means "weeping tree" in Quechua.
Rubber production was known to the Aztecs in the 15th century at the latest. Christopher Columbus, who arrived in the New World in 1493, mentions in his diaries the Aztecs playing with a rubber ball made of tree sap.[1] The person who introduced rubber into our daily lives in the 1840s was Charles Goodyear, also known as the father of rubber.
Natural rubber contains 3% protein and 97% cis-1,4-polyisoprene by mass.
Raw rubber is called latex. It is mixed with cotton or viscose and used in making belt corsets, rubber socks (varicose compression stockings). Rubber can be made into a flexible material to make clothes, hoses and tires. The absorbent properties of rubber make it a useful substance in automobile suspension. Rubber also dampens the vibrations of industrial materials.
In addition, rubber is also used in waterproofing finishing. Because rubber is water resistant, it is used in diving suits, raincoats and medical tubing. Rubber is a good electrical insulator and is often used to coat electrical wires. Rubber can be turned into foam, made up of millions of air bubbles. This foam can be molded to produce many lightweight products such as sponges and pillows.
Tolerances
