Styrene Butadiene Rubber Properties

Styrene butadiene rubber sbr refers to a group of synthetic rubbers derived from styrene and butadiene.

Styrene butadiene rubber properties. For the majority of applications abs can be used between 20 and 80 c 4 and 176 f as its mechanical properties vary with temperature. With high styrene content the rubbers are harder and less rubbery. Exceeding all other synthetic rubbers in consumption sbr is used in great quantities in automobile and truck tires generally as an abrasion resistant replacement for natural rubber produced from polyisoprene. The rubber is classified as a block co polymer.

Properties of styrene styrene is an organic hydrocarbon found in the environment as a colourless liquid that evaporates easily and has a sweet smell. Styrene butadiene rubber sbr or styrene butadiene is a synthetic rubber comprising of styrene and butadiene monomers. Styrene content in the range of 10 25 contributing to good wearing and bonding characteristics. Many solvents oils concentrated acids dilute sodium hydroxide.

The ratio between styrene and butadiene influences the rubber properties. Poor resistance to petroleum based fluids. The fatigue resistance and low temperature properties of sbr are usually inferior to natural rubber whereas its heat aging properties and abrasion resistance are better. Good physical properties and abrasion resistance.

The polybutadiene a rubbery substance provides toughness even at low temperatures. The addition of styrene also improves the strength abrasion resistance and blend properties of polybutadiene. Sbr is not to be confused with the thermoplastic elastomer styrene butadiene block copolymer although being derived from the same monomers. These materials have excellent abrasion resistance and aging stability with the protection of additives.

The random copolymer has characteristics like natural rubber and contains. Styrene butadiene styrene is a synthetic rubber commonly referred to as sbs. Styrene butadiene 20 f 212f. Rubber material selection guide sbr or styrene butadiene abbreviation sbr astm d 2000 classification aa ba chemical definition styrene butadiene rrp compound number category 40000 series physical mechanical properties durometer or hardness range 30 95 shore a tensile strength range 500 3 000 psi 450 600.

Styrene butadiene rubber sbr a general purpose synthetic rubber produced from a copolymer of styrene and butadiene. Sbs is also very compatible with bitumen making it the perfect bitumen modifier to achieve cold weather flexibility and elastic properties. Excellent high and low temperature properties. Production process of styrene.

The structure of sbs allows for a blend of hard plastic and elastic properties. The following are the most relevant properties of this organic compound.