The study of the mechanical properties of rubber mixes
containing different concentrations of manobond and KMR pro-moters and their impact on the force of adhesion is very
important since there is a relationship which relates the adhesion
between NR and brass-coated steel cords and the square root of
the rubber modulus[33]according to Eq.(2).
P¼ð4prEAaÞ
1=2
¼ð2pEAaÞ
1=2
ð2Þ