Question

what is vulcanisation of rubber??

Answer 1

Vulcanization of rubber is a process of improvement of the rubber elasticity and strength by heating it in the presence of sulfur, which results in three-dimensional cross-linking of the chain rubber molecules (polyisoprene) bonded to each other by sulfur atoms.
There are two general types of rubber:

Natural rubber is produced from latex - milky emulsion drawn from the rubber tree (Hevea brasiliensis) or some other plants. When coagulated latex transforms into soft, plastic and sticky substance (crude rubber), which is then vulcanized (cured). Natural rubber is composed of polyisoprene molecules.Synthetic rubbers are Elastomers, elastic properties of which are similar to those of the natural rubber. Synthetic rubber may have chemical composition similar to the natural rubber (synthetic polyisoprene). Other kinds of synthetic rubbers are: polybutadiene, poly(styrene-butadiene-styrene),polychloroprene (Neoprene), polyisobutylene (Butyl rubber), silicone.

Vulcanization process was invented by Charles Goodyear in 1839.

Answer 2

→ Vulcanization ( also spelled as vulcaniaation ) is a process or more specifically a chemical process in which polymers are converted into a form which more durable than their initial form.

→ It is performed by creating crosslinks.

→ If we form cross links between each polymer chain, it also affects the mechanical properties of that particular element over which the vulcanization process is done.

→ It is quite often that we use the term " vulcanized fibre " by which we actually refer to a kind of cellulose that is in fact treated by a zinc chloride (  ) solution so that the cellulose fibres are crosslinked.

→ The vulcanization process in which sulphur is used to increase durability of rubber, is known as sulphur vulcanization( also spelled as sulphur vulcanisation ).

→ Sulphur volcanization is generally defined as the chemical process which involves conversion of the rubber formed naturally into a somewhat more durable matter by heating it with sulphur.

Originally answered by me on Brainly.in - https://brainly.in/question/5434172#readmore