Structure-property relationships of polymer blend/clay nanocomposites: Compatibilized and noncompatibilized polystyrene/propylene/clay

Oana M. Istrate, Micheal A. Gunning, Clement L. Higginbotham, Biqiong Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Polymer blends represent an important class of materials in engineering applications. The incorporation of clay nanofiller may provide new opportunities for this type of materials to enhance their applications. This article reports on the effects of clay on the structure and properties of compatibilized and noncompatibilized polymer blends and presents a detailed process for quantitative analysis of the elastic moduli of polymer blend/clay nanocomposites, based on immiscible polystyrene/polypropylene (PS/PP) blends with or without maleated PP as the compatibilizer. The results show that in the noncompatibilized PS/PP/clay nanocomposite clay locates solely in the PS phase, whereas in the compatibilized nanocomposite clay disperses in both phases. The addition of clay to both polymer blends reduces the domain size significantly, modifies the crystallinity and improves the stiffness. The Mori-Tanaka and Christensen's models offer a reasonably good prediction of the elastic moduli of both types of nanocomposites.

Original languageEnglish
Pages (from-to)431-441
Number of pages11
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume50
Issue number6
DOIs
Publication statusPublished - 15 Mar 2012

Keywords

  • clay
  • nanocomposite
  • polymer blend
  • structure-property relationship

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint

Dive into the research topics of 'Structure-property relationships of polymer blend/clay nanocomposites: Compatibilized and noncompatibilized polystyrene/propylene/clay'. Together they form a unique fingerprint.

Cite this