A rubber composition, which comprises 100 parts by weight of an ethylene-alkyl acrylate copolymer rubber, 5-40 parts by weight of EPDM, 1-40 parts by weight of an α -olefin oligomer, 0.5-4 parts by weight of an organic peroxide cross-linking agent, 0.5-4 parts by weight of an amine-based vulcanizing agent, and 300-1,000 parts by weight of magnetic powder. The rubber composition is a rubber composition filled a magnetic powder at a high packing density, where an ethylene-alkyl acrylate copolymer rubber having amine vulcanizable groups as a binder, and effectively usable in rubber-bonded sensor magnets, etc., without any foaming at the time of vulcanization molding and with distinguished processabilities such as mold releasability, etc.
                            一种橡胶组合物,包括 100 份(重量)
乙烯-
丙烯酸烷基共聚物橡胶、5-40 份(重量)三元
乙丙橡胶、1-40 份(重量)α-烯烃低聚物、0.5-4 份(重量)有机过氧化物
交联剂、0.5-4 份(重量)
胺类硫化剂和 300-1000 份(重量)磁粉。该橡胶组合物是一种以高堆积密度填充磁性粉末的橡胶组合物,以具有
胺类可
硫化基团的
乙烯-
丙烯酸烷基共聚物橡胶作为粘合剂,可有效用于橡胶粘合传感器磁体等,在
硫化成型时不会产生任何泡沫,并具有出色的脱模性等加工性能。