SUPERMOLECULAR THERMO-REVERSIBLE CROSSLINKED ELASTOMER COMPOSITION HAVING EXCELLENT PERMANENT COMPRESSIVE STRAIN PERFORMANCE AND MECHANICAL STRENGTH AND A MANUFACTURING METHOD OF AN ELASTOMER USING THE SAME

摘要

PURPOSE: A supermolecular thermo-reversible crosslinked elastomer is provided to have excellent dispersity and recycling performance and to obtain high mechanical strength and low permanent compressive strain after repeated uses while reducing the use amount thereof.;CONSTITUTION: A supermolecular thermo-reversible crosslinked elastomer is manufactured by mixing 0.1-20.0 parts by weight of a zinc oxide and 0.1-1.0 parts by weight of an antioxidant into 100.0 parts by weight of a carboxylic acid-grafted ethylene-propylene rubber substrate. The carboxylic acid-grafted ethylene-propylene rubber is that 0.15-25 parts by weight of an unsaturated carboxylic acid, 0.01-0.3 parts by weight of a peroxide, and 0.01-1.0 parts by weight of an antioxidant are grafted to 100.0 parts by weight of an ethylene-propylene rubber.;COPYRIGHT KIPO 2013;[Reference numerals] (S1) First mixing step of adding an unsaturated carboxylic acid, peroxide, an antioxidant into an ethylene-propylene rubber substrate to manufacture a carboxylic acid-grafted ethylene-propylene rubber; (S2) Second mixing step of adding nanozinc oxide and an antioxidant into the carboxylic acid-grafted ethylene-propylene rubber substrate