Important synthetic rubbers: styrene rubber , Chemistry

Styrene rubber (GR-S or Buna-S or SBR or Ameripol): Styrene butadiene rubber (SBR) is prepared by the copolymerization of butadiene (75%) and styrene (25%) in an emulsion styrene at in the presence of catalyst like Cunene hydro peroxide and p-methane hydro peroxide. When the emulsion polymerization is done at low temperature (-18 to 5 degree centigrade) in the presence of redox catalyst, than the resultant SBR is known as "cold rubber".

Properties: SBR has high abrasion resistance, high load bearing capacity, low oxidation resistance. It swells in oils and solvents and has resilience. Vulcanized and compounded cold rubber has a greater tensile strength and greater abrasion resistance than the SBR or natural rubbers.

Uses: SBR is used in motor tyres, shoe soles, gas kits, foot wear components, insulation of wire and cables, carpet backing, adhesives etc.

 

 

Posted Date: 7/21/2012 8:28:44 AM | Location : United States







Related Discussions:- Important synthetic rubbers: styrene rubber , Assignment Help, Ask Question on Important synthetic rubbers: styrene rubber , Get Answer, Expert's Help, Important synthetic rubbers: styrene rubber Discussions

Write discussion on Important synthetic rubbers: styrene rubber
Your posts are moderated
Related Questions
Q. What is the electromagnetic spectrum? Ans. Light is a very small slice of the electromagnetic spectrum, just the wavelengths that our eyes can see, which range from abo

Nomenclature of polyfunctional complex organic compound

give instrumentation of electrogravimetry


The triene contains two diene units with one double bond common to both. The dienophile reacts with the diene unit that is locked in an s-cis conformation.

Valence electron of pd Pd has ten valence electrons in the neutral atom.   There are no charges and no X-type ligands in the complex; as, this is a d 10 complex.


What is the excitation power that has been used? The absorption cross section is a significant parameter for the calculation of the expected fluorescence signal from a single m

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

steric effect affecting the end product of organic compound