S Mohammadi - Polymer and Petrochemical Institute, , Tehran, Iran
H Salehi-Mobarakeh - Polymer and Petrochemical Institute, , Tehran, Iran
A.R Mahdavian - Polymer and Petrochemical Institute Tehran, Iran
H Azizi - Polymer and Petrochemical Institute, , Tehran, Iran

PVC is amorphous polymer which having polar color side groups in their structure. Thus PVC has very low impact strength. In this work effect of incorporating blends of two acrylic based impact modifier which having a shell from PMMA and a core from poly butadiene and poly butyl acrylate on PVC impact have been investigated. Results showed sample congaing 25% from impact modifier with core of poly butadiene rubber and 75 from impact modifier with poly butyl acrylate rubber core improved impact strength drastically.

PVC, Impact Modifier, Blending, Impact Strength