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

Organometallic compounds, Alkyl ligands form metal carbon σ bonds. Usually ...

Alkyl ligands form metal carbon σ bonds. Usually they occur in conjunction with other organic ligands or CO, but may be achieved on their own, as in tungsten hexamethyl (1), and

Degree of freedom, F of NH4Cl->NH3 +HCl when p(NH3)not =p(HCl) F of KClO3->...

F of NH4Cl->NH3 +HCl when p(NH3)not =p(HCl) F of KClO3->KCl +O2 KClO3=solid &KCl=solid & other are in gas. PLEASE REPLY TODAY(NEED TO COMPLETE THE ASSIGNMENT)

The electronic structure of four elements, The electronic structure of four...

The electronic structure of four elements A, B, C, D are: (1) 1s 2                   (2) 1s 2 , 2s 2, 2p 2 ,              (3)  1s 2, 2s 2 , 2p 5 ,

Use of acetonitrile compare to methanol, What is use of acetonitrile compar...

What is use of acetonitrile compare to methanol in RP-HPLC Method development? ACN is highly polar as compare to Methanol So give Better resolution for more compound and it has p

Determine element that mass number of anion is given, The mass number of an...

The mass number of an anion,   X 3- is 14. If there are ten electrons in the anion, the number of neutrons in the nucleus of atom, X 2   of the element will be: (1) 10

What is galvanic cell, A Galvanic cell or voltaic cell or electrochemical c...

A Galvanic cell or voltaic cell or electrochemical cell is a system in which a spontaneous chemical oxidation- reduction happens and makes electrical energy.

Inductive effect, Why inductive effect is compared with hydrogen?

Why inductive effect is compared with hydrogen?

Refining of petroleum, Refining of petroleum: Petroleum (crude) extract...

Refining of petroleum: Petroleum (crude) extracted from earth's crust is an intimate mixture of many organic compounds. Crude petroleum needs to be purified and its components

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