Abstract
β‐Nucleating agent was added into maleic anhydride (MAH) compatiblized isotactic polypropylene (iPP)/ethylene‐propylene‐diene monomer (EPDM) blend systems, dynamically vulcanized by dicumyl peroxide (DCP). The β phase of iPP formed in TPVs was investigated by means of WAXD, and the effect of DCP content, MAH content and system viscosity on the β phase of iPP was also studied. With increasing DCP content, the MFR values of blend systems increased a little and then decreased, indicating that the DCP content showed a remarkable effect on the system viscosity. Also, with increasing MFR, the β phase content increased first and then decreased, while with increasing MAH content, the β phase content decreased sharply.
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