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

What is calcinations process, Q. What is Calcinations process? This is ...

Q. What is Calcinations process? This is fie method of heating the concentrated ore in a limited supply of air to a high temperature but under the fusion temperature. In calcin

Lyman series, For a hydrogen atom, calculate the wavelength (in nm) of an e...

For a hydrogen atom, calculate the wavelength (in nm) of an emitted photon in the Lyman series that results from the transition n = 3 to n = 1

What is internal energy, Every substance poses exact amount of energy known...

Every substance poses exact amount of energy known as internal energy or intrinsic energy (E).

Example of octahedral complexes, Q. Example of octahedral complexes? Le...

Q. Example of octahedral complexes? Let us now turn our attention to the complexes having transition metal ion with d 2 or d 3 electrons. With these configurations, there are

Electrochemistry, given the mobility of hydrogen ion and cl to be 0.0000003...

given the mobility of hydrogen ion and cl to be 0.0000003623 and 0.0000000791 respectively. calculate the transference number of proton in the 0.001M solution of hydrocholric acid

Ionic radii, Ionic Radii   The experimentally calculated anion-cation...

Ionic Radii   The experimentally calculated anion-cation distances in highly ionic solids have to be interpreted on the assumption that each and every ion has a nearly fixed

Inquiry on controlled chemical storage, how do your store hydrogen peroxide...

how do your store hydrogen peroxide, nitric acid, sulfuric acid, hydrochloric acid, potassium permanganate, ammonium sulfate and silver nitrate in equatorial places (phil)? should

General characteristics of the f-block, Q. General Characteristics of the f...

Q. General Characteristics of the f-block? You know that the 14 elements from cerium (Z = 58) to lutetium (Z = 71), which follow lanthanum (Z = 57) in the periodic table, are k

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