SELF-VULCANIZABLE MULTIPLE POLYMER BLEND SYSTEM FOR ULTRA-HIGH DENSITY ELASTOMER

摘要

A ternary elastomer composition having a self-crosslinking system is provided to realize high crosslinking without using a crosslinking agent and to improve vibration resistance, flowability and moldability. A ternary elastomer composition comprises: 20-40 wt% of chloroprene rubber modified with a fatty acid anhydride; 10-25 wt% of epoxidized natural rubber; and 40-55 wt% of chlorosulfonated polyethylene. The fatty acid anhydride includes maleic anhydride. The chloroprene rubber modified with a fatty acid anhydride and the epoxidized natural rubber are used in a weight ratio of 6-8:2-4. The ternary elastomer composition optionally further comprises an inorganic filler selected from tungsten powder and zinc powder.