Morphology and properties of polypropylene/ethylene-octene copolymer/clay nanocomposites with double compatibilizers

Sedigheh Bagheri-Kazemabad, Daniel Fox, Yanhui Chen, Hongzhou Zhang, Biqiong Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The influence of nanoclay on the morphology and properties of the polypropylene (PP)/ethylene-octene block copolymer (EOC) blend with double compatibilizers of maleated PP (PP-g-MA) and maleated EOC (EOC-g-MA) was investigated and compared with the nanocomposites containing either PP-g-MA or EOC-g-MA as a compatibilizer. X-ray diffraction, transmission electron microscopy, and scanning electron microscopy were utilized for morphological characterization in conjunction with dynamic mechanical thermal analysis, mechanical testing, and rheological evaluation of these nanocomposites. The results suggested that in the nanocomposite including both compatibilizers of PP-g-MA and EOC-g-MA, clay was dispersed as a mixed structure of intercalation and exfoliation in both phases of the polymer blend. Comparing the mechanical properties of the studied nanocomposite with nanocomposites of PP/EOC/PP-g-MA/clay and PP/EOC/EOC-g-MA/clay also indicated that the nanocomposite containing mixed compatibilizers displayed higher tensile modulus, tensile strength, and complex viscosity because of the better dispersion of clay in both phases. The results also confirmed the increased structural stability and reduced dispersed phase size of PP/EOC/PP-g-MA/EOC-g-MA blend in the presence of clay that proposed the compatibilization role of clay in this nanocomposite.

Original languageEnglish
Pages (from-to)1116-1121
Number of pages6
JournalPolymers for Advanced Technologies
Volume25
Issue number10
Early online date14 Jul 2014
DOIs
Publication statusPublished - Oct 2014

Keywords

  • Clay
  • Compatibilizer
  • Nanocomposite
  • Polymer blend

ASJC Scopus subject areas

  • Polymers and Plastics

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