RUBBER COMPOSITION WITH HIGH ELONGATION

摘要

PURPOSE: A rubber composition and its preparation method are provided, which exhibits a high elongation, a maximized sliding resistance and an excellent fashionable appearance and is useful as the outer sole of shoes. CONSTITUTION: The rubber composition comprises 100 parts by weight of a base rubber; 1.0-4.0 parts by weight of sulfur; 0.1-3.0 parts by weight of a curing auxiliary; 5-120 parts by weight of a filler; 0.5-2.0 parts by weight of a coupling agent; 0.2-1.0 parts by weight of a crosslinking auxiliary; 3.0-10.0 parts by weight of a metal oxide and 0.5-3.0 parts by weight of stearic acid as a curing stabilizer; 0.05-2.0 parts by weight of an antioxidizing agent; 0.5-3.0 parts by weight of an antistatic material; and 0.1-2.0 parts by weight of a pigment. The method comprises the steps of plasticizing a natural base rubber under a roll of 30-40 deg.C; and adding the filler and other additives to the plasticized base rubber and plasticizing and mixing them at a kneader of 120-130 deg.C.