Study on isotactic polypropylene/zinc-neutralized sulfonated ethylene propylene diene monomer rubber/CaCO3 ternary blends

✍ Scribed by Mingjia Zheng; Huilin Li

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 286 KB
• Volume: 91
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.13314

✦ Synopsis

Abstract

The morphological structure and mechanical properties of isotactic polypropylene (PP)/zinc‐neutralized sulfonated ethylene propylene diene monomer rubber (ZnSEPDM)/CaCO~3~ blends were studied. PP/ZnSEPDM/CaCO~3~ blends were prepared through two different sequences. A: Blending PP with ZnSEPDM, then adding CaCO~3~; B: Blending ZnSEPDM with CaCO~3~, then adding PP. The blending sequence has substantial influence on the mechanical properties. SEM micrographs and X‐ray photoelectron spectrometry indicate that the CaCO~3~ filler is encapsulated by ZnSEPDM in those blends prepared through sequence B, which caused an extra increase of impact strength. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 1635–1640, 2004