High Performance Elastomer Composed of the Acrylic Rubber Filled with Montmorillonite Organically Treated with Various Alkyl Amines

Montmorillonites organically treated with various alkylamines were filled to the acrylic rubber and various properties including mechanical, oil resistance, and abrasion were investigated. Montmorillonite tended to exfoliate after the organic treatment and uniformly dispersed in the acrylic rubber. This uniform dispersion of the filler resulted in the improvement of the mechanical property. Number of carbon atoms in the alkylamine used for the organic treatment increased the swelling with oil at high temperature. Abrasion wear rate of the acrylic rubber was reduced when organically treated montmorillonite was well dispersed in the matrix.