SBR
SBR is derived from the copolymerization reaction between styrene and butadiene. This material is mostly used in substitution for the natural rubber.
Comparing Natural Rubber with SBR Rubber:
* SBR rubber is prepared in shorter period and its preparation is easier than the natural rubber.
* SBR rubber provides better resistance against corrosion, aging and heat than the natural rubber.
* Elasticity of SBR is worse than the natural rubber.
* SBR provides more resistance against non-polar dissolvers, dilute acids and bases.
* SBR does not provide resistance against oils and fuels.
* It contains 25% of SBR, and commonly used in tire parts that make contact with the road.
Properties:
This material requires strengthening extenders for providing good mechanical properties.
It shows resemblance to the natural rubber; however it provides better resistance against aging and heat.
Performs better than the natural rubber in terms of ozone and atmospheric conditions.
Areas of Usage:
Conveyor belts, floor mats, shoe soles, sport equipment, hoses, cable coatings, packaging materials.
Operating Temperatures:
Long term: -40 C° + 100 C°
Short term: -50 C° + 120 C°