Role of interfacial layers in the properties of particle-filled polyolefin systems

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

Modified interfacial layers were studied in polypropylene-calcium carbonate systems compounded in a single-step process with a surface-active agent and an elastomer simultaneously. Samples with etched and non-etched surfaces were investigated by dielectric spectroscopy and scanning electron microscopy. An increase in the thickness of the interfacial layer was brought about by the increasing elastomer content of the system. However, when the concentration of the latter exceeded a critical upper limit, a new disperse elastomer phase could be observed in the matrix. The value of the critical concentration depends upon the type of elastomer and it is a characteristic parameter for a given polymer-elastomer system. Deformations and failure in the composite system are determined by the interfacial layer. A thick elastomer interphase around the filler particles acts as a bumper layer and stops the crazes. The interactions between the components and the change in the mechanical properties induced by the presence of named additives were also investigated by mechanical spectroscopy.

Original languageEnglish
Pages (from-to)185-198
Number of pages14
JournalColloids and Surfaces
Volume23
Issue number3
DOIs
Publication statusPublished - Mar 30 1989

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Polyolefins
Elastomers
Dielectric spectroscopy
Calcium carbonate
Fillers
Large scale systems
Polypropylenes
Surface active agents
Spectroscopy
Mechanical properties
Scanning electron microscopy
Polymers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Role of interfacial layers in the properties of particle-filled polyolefin systems. / Marosi, G.; Bertalan, G.; Rusznák, I.; Anna, P.

In: Colloids and Surfaces, Vol. 23, No. 3, 30.03.1989, p. 185-198.

Research output: Contribution to journalArticle

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