CANCELLED: Improved Adhesion to Reinforcement Fibers In Peroxide-Cured EPDM Compounds

Fibres such as p-aramid fibres are used to reinforce belts and hoses made with EPDM, to increase the stiffness of the elastomer.  This paper describes that the addition of hydroxy-TEMPO to the peroxide-cured elastomer compound significantly increases the reinforcement effect of the fibres in the elastomer compound.  It has further been found that hydroxy-TEMPO can prevent the formation of black scorch in EPDM compounds, which is of wide industrial utility.  This paper also describes a useful method of preparing a masterbatch of hydroxy-TEMPO and derivatives in apolar polymers that reduces the problems of migration often seen in such masterbatches.