Investigating the effect of Poly(1-hexene) addition on Mechanical Properties of iPP/EPDM Blends

The effect of adding poly(1-hexene) (PH) homopolymer on mechanical properties of iPP/EPDM blend is investigated. It is found that upon substituting certain amounts of PH for EPDM in the blend, stress at yield, elongation at break and impact resistance of the blend increases considerably. As the amount of substituted PH in the blend increases from 0 to 20 weight percent, stress at yield of the blend increases from 18.76 MPa to 21.12 MPa and the elongation at break increases from 15.46% to 370.85%. The impact resistances of the samples also increase dramatically from 6414 Jm-2 to 50058 Jm-2. Therefore PH is introduced as a very effective impact modifier for iPP