Abstract
This research focuses on feasibility study of using n-phenyl-p-phenylenediamine modified vegetable oils as processing oil in the blend formulation of epoxidized natural rubber (ENR) /polypropylene (PP) thermoplastic vulcanizates (TPVs). Effect of n-phenyl-p-phenylene-diamine modified vegetable oils on tensile and dynamic mechanical properties of the ENR/PP TPVs was investigated. For a comparison purpose, vegetable oils, epoxidized vegetable oils, and white oil were selected and also used in our experiment. Results show that all types of oils used in this study did not give the TPVs with significantly different values of tensile strength. The TPVs with petrochemical based white oil obviously provided the best elongation at break and tension set. However, by using n-phenyl-p-phenylenediamine modified palm oil (pA-m-EPO) the ENR/PP TPVs showed superior elastomeric properties (higher storage modulus together with lower tension set, tan δ and complex viscosity) than those of other TPVs. This means that the pA-m-EPO performed good compatibility with the TPV and had good distribution in the ENR molecules.
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