What is the Buna-S ?
Answers
Answer:
Buna S. The material was initially marketed with the brand name Buna S. Its name derives Bu for butadiene and Na for sodium (natrium in several languages including Latin, German, and Dutch), and S for styrene.
Buna-S name is derived from Bu-butadiene and Na-sodium/ natrium and S-styrene
-It is a replacement for natural rubber.
-It is derived from two monomers, styrene and butadiene. The mixture of these two monomers is polymerized by two basically different processes: from solution (S-SBR) or as an emulsion (E-SBR).
-It has good abrasion resistance and good aging stability when protected by additives.
-The styrene/butadiene ratio influences the properties of the polymer: with high styrene content, the rubbers are harder and less rubbery.
-It is the most commonly used synthetic rubber.