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

Organic, A crucial step in the Robinson annelation is the elimation of an a...

A crucial step in the Robinson annelation is the elimation of an aldol adduct to form an enone. The elimination of an aldol product can occur in base (it occurs even more readily i

The following quantum no.represent an imposssible arrangment, Which of the ...

Which of the following sets of quantum numbers represent an impossible arrangement:         n          l          m        m2      (1)   3          2        - 2        (+)

Local anesthetics - drugs and medicines, Local Anesthetics: These infl...

Local Anesthetics: These influence just only a part of the body insensitive to pain or feeling. Common local Anesthetics are: xylocaine (employed in jelly form), ethyl chlorid

Cross linked polymers - classification of polymers, Cross linked polymers ...

Cross linked polymers : 1. These are polymers where monomers unit are crosslinked together to make a three dimensional network polymers. 2. These kind of polymers are hard,

Surface chemistry, what are the different types of colloidal system?

what are the different types of colloidal system?

N factor, how to calculate the n factor for redox reaction involving comple...

how to calculate the n factor for redox reaction involving complex scenarios and more than two exchanges..

Electronic configurations, what rules and principles are violated in the fo...

what rules and principles are violated in the following electronic configuration: 1s22s3

Concerted Pericyclic Reactions, Predict the regiochemistry and stereochemis...

Predict the regiochemistry and stereochemistry of the following cycloaddition reactions and indicate the basis for your prediction.

Equations, NaOH + K2Cr2O7 ---> HCo + NaHCO3 ---> HCo + NaOH ---> CuSo4 +...

NaOH + K2Cr2O7 ---> HCo + NaHCO3 ---> HCo + NaOH ---> CuSo4 + NaOH ---> CH3COOH + NaHCO3 ---> PbNO3 + KI --->

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