Abstract
1, 2polybutadine (1, 2-PB) was blended with sulfur-vulcanizable acrylic elastomer (ADM) in a mill at various temperatures and the effect of mixing temperature on physical properties of blend-polymers was studied.Green strength and hardness of unvulcanized compounds increased with an increase in mill temperature. It was revealed by electron micrographs that increasing mill temperature resulted in a change of continuous phase and of particle size.It is necessary to control mill temperature for the blend of ADM and 1, 2PB in a mill.State of phase continuities didn't change by press cure and vulcanizates of the same blend ratios having different phase continuities showed the same stress-strain curves, hardness and swelling, which suggested the presence of interphase crosslinking between different rubbers.
