SILICA RUBBER COMPOSITION CONTAINING POLYETHYLENE GLYCOL

摘要

PURPOSE: A silica rubber composition is provided, to improve the processability and the mechanical properties of a rubber composition using silica as a reinforcing agent by employing polyethylene glycol. CONSTITUTION: The silica rubber composition comprises 100 parts by weight of a natural rubber; 2-3 parts by weight of polyethylene glycol; and optionally 70-90 parts by weight of silica and 6-7 parts by weight of a silane coupling agent as a reinforcing agent. Preferably the polyethylene glycol has a molecular weight of 4,500-9,000.