有機めっき処理金属とアクリルゴムとの直接加硫接着

Abstract

A novel technique for the direct adhesion between acrylic rubber (ACM) and metals, such as iron, nickel and stainless steel SUS 304 during vulcanization was developed. The metals are first plated with thin polymer films through the electrochemical polymerization of 6-diallylamino-1, 3, 5-triazine-2, 4-dithiol monosodium (DAN), and then adhered directly to acrylic rubber during vulcanization. The modification of metal surface has been also called polymer plating compared with the traditional metal electroplating. The thickness of the polymer film has a significant effect on the peel strength of the adherend of polymer plated metal to ACM. The peel strength of the adherend increases rapidly with the film thickness within about 25nm, and beyond the thickness, maintains enough peel strength showing the rubber cohesive failure with 100% rubber coverage. The peel strength of the adherends decreases with the increase of the amounts of the curing agents but shows rubber cohesive failure in the normal compounding amounts. The curing temperature and time of the rubber have only a little effect on the peel strength of the adherend. The adherend has excellent heat aging resistance and oil resistance.