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

Define interfacial potential differences - galvanic cell, Define Interfacia...

Define Interfacial potential differences? What is the source of an open-circuit, zero-current cell potential? When no electric current passes through the cell, the electric pot

Biomarker, definition and classes of biomarkers

definition and classes of biomarkers

#tit4-pyridinecarboxaldehyde.., synthesis, posted date 1/12/2013 7;26;41 pm...

synthesis, posted date 1/12/2013 7;26;41 pm\location ;austeralia

Ammonical smell, how can we identify the ammonical smell and punjent smell?...

how can we identify the ammonical smell and punjent smell?

Preparation of standard solution and titrations, How are standard solutions...

How are standard solutions and titrations prepared in industry compared to school

Electroanalytical technique, Electroanalytical technique: An electroan...

Electroanalytical technique: An electroanalytical technique is based on the measurement of one or more electrical quantities and their magnitudes could be correlated with the

Characteristics of homologous series, Characteristics of homologous series ...

Characteristics of homologous series (i) All the members of a series can be presented by the general formula. For instance, the members of the alcohol family are illustrated b

Chemical formula, copper reacts with oxygen to form two oxides es x and y ...

copper reacts with oxygen to form two oxides es x and y on analysis 1.535 g of x yielded 1.365 g of copper and 1.450 g of y yielded 1.160 g of copper(1) determine the chemical for

Acids and bases, What does the HA and A- stand for in buffer solution equat...

What does the HA and A- stand for in buffer solution equations? Ka=HA/A-

Determine following sub levels, Krypton ( 36 Kr)   has the electronic con...

Krypton ( 36 Kr)   has the electronic configuration (18 Ar) 4s 2 , 3d 10 , 4p 6    . The 37  electron will go into which one of the following sub-levels: (1) 4f

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