Vulcanization of rubber, Chemistry

Assignment Help:

Vulcanization: Vulcanization is very widely used in rubber technology to improve the properties such as low tensile strength, plastic nature, thickness etc. by adding some chemicals like sulphur, hydrogen sulphide, benzene chloride etc. it is done by heating of raw rubber with sulphur at 100: 140 degree centigrade temperature. The added sulphur combines chemically as the double bonds of different rubber springs. Sulphur can also bring about vulcanization without affecting the double bonds in the polymer molecule, by eliminating H2S. The rate of vulcanization of rubber is quite slow and also depends upon the types and quality of rubber used. But, by using certain organic compounds called accelerators, vulcanization reaction speed up.

 

 


Related Discussions:- Vulcanization of rubber

Double titration, how to determine the strength ofpotassium dichromate with...

how to determine the strength ofpotassium dichromate withFAS and N-phenyl anthranilic acid as an internal indicator

Geometrical isomers not possible in tetrahedral complexes, Why is geometric...

Why is geometrical isomers not possible in tetrahedral complexes having two different types of unidentate ligands? Solution) Tetrahedral complexes do not show geometrical isomeri

Photochemistry, what is importance of photochemical quantum yield

what is importance of photochemical quantum yield

Name the chief ore of silver, Name the chief ore of silver. Explain with...

Name the chief ore of silver. Explain with chemical equations the extraction of silver from this ore.

What are the objectives of heat treatment of metals, What are the objective...

What are the objectives of heat treatment of metals? Objectives of heat treatment- Cause relief of internal stresses developed during cold working, welding, forging, cas

Define the hydration rate, The hydration rate of the deuterium-substituted ...

The hydration rate of the deuterium-substituted styrene should vary very little, if at all, from that of styrene itself, because the deuteriums are not transferred in the rate-limi

Bronsted-lowry theory, Fundamentals of Acids and Bases Bronsted-Lowry ...

Fundamentals of Acids and Bases Bronsted-Lowry theory: A Bronsted acid is a (proton) + donor, whilst a Brønsted base is a proton acceptor. An acid-base reaction involves t

Normality, #question.how you can prepare 5 normal solution of potassium nit...

#question.how you can prepare 5 normal solution of potassium nitrate in 2 litre volume?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd