SUPERMOLECULAR THERMO-REVERSIBLE CROSSLINKED ELASTOMER COMPOSITION HAVING EXCELLENT MECHANICAL STRENGTH AND COMPRESSION PERMANENT SET RATE WHILE HAVING A THERMOREVERSIBLE CROSSLINKING BY HEAT IN A TEMPERATURE OVER 150 C, AND A MANUFACTURING METHOD OF A ELASTOMER USING THE SAME

摘要

PURPOSE: A supermolecular thermo-reversible crosslinked elastomer composition is provided to be continuously processed and produced by using general plastic or rubber processing apparatus, and to be repeatedly used because degradation of mechanical properties, elastic recovery, compression permanent set rate, etc are hardly occurred even after repeated processes.;CONSTITUTION: A supermolecular thermo-reversible crosslinked elastomer composition is manufactured by mixing 0.2-20.0 parts by weight of metal salt, 0.1-1.0 parts by weight of antioxidant, 0.2-20.0 parts by weight of metal salt and 0.1-1.0 parts by weight of antioxidant based on 100.0 parts by weight of carboxylic acid-grafted ethylene-propylene rubber substrate. The carboxylic graft ethylene-propylene rubber is that 0.1-15.0 % of carboxylic acid is grafted by adding 0.15-25 parts by weight of unsaturated carboxylic acid, 0.01-0.3 parts by weight of peroxide, and 0.01-1.0 parts by weight of antioxidant based on 100.0 parts by weight of ethylene-propylene rubber.;COPYRIGHT KIPO 2013;[Reference numerals] (S1) First processing step manufacturing carboxylic acid-grafted ethylene-propylene rubber by mixing unsaturated carboxylic acid, peroxide and antioxidant into ethylene-propylene rubber; (S2) Second processing step mixing metal salt and antioxidant into the carboxylic acid-grafted ethylene-propylene rubber