Effects of compatibilizer on mechanical, morphological, and rheological properties of polypropylene/poly(acrylonitrile-butadiene-styrene) blends

Chong K. Kum, Yu Taek Sung, Yong Su Kim, Hyung Gon Lee, Woo Nyon Kim, Heon Sang Lee, Ho Gyu Yoon

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30 Citations (Scopus)


The effects of a compatibilizer on polypropylene (PP)/poly(acrylonitrile- butadiene-styrene) (ABS) blends were studied. Blends of the PP/ABS, with PP-g-SAN copolymer as a compatibilizer, were prepared using a twin screw extruder. The flexural and impact strength of the PP/ABS blends with the PP-g-SAN copolymer increased significantly with PP-rich compositions on the addition of the PP-g-SAN copolymer at 3 phr. The increase in the mechanical properties of the PP/ABS/PP-g-SAN blend may have been due to the toughening effects of the ABS in the PP-rich compositions. In the morphology study of the PP/ABS/PP-g-SAN (80/20) blend with the PP-g-SAN copolymer, the minimum droplet size, 5.1 μm, was observed with the addition of 3 phr of the PP-g-SAN copolymer. The complex viscosity of the PP/ABS/PP-g-SAN (80/20) blends increased with the addition of 3 phr of the PP-g-SAN copolymer. From the above mechanical properties, morphology and complex viscosity results for the PP/ABS blends, it is suggested that the compatibility is more increased with the PP-rich composition (PP:ABS = 80/20 wt%) of the PP/ABS blend on the addition of 3 phr of the PP-g-SAN copolymer.

Original languageEnglish
Pages (from-to)308-314
Number of pages7
JournalMacromolecular Research
Issue number4
Publication statusPublished - 2007 Jun 1



  • Compatibilizer
  • Mechanical properties
  • Morphology
  • Polymer blends
  • Rheology

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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