Electron paramagnetic resonance investigation of orientation produced by mechanical processing in the fillers of polymer composites

A. Rockenbauer, László Jókay, B. Pukánszky, Ferenc Tüdös

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Electron paramagnetic resonance spectroscopy has been applied in order to study the orientation effects of mechanical deformation of the calcium carbonate fillers of polymer composites. The anisotropic signals of Mn2+ ions substituting Ca2+ ions and electron defect centers in calcium carbonate served as spin probes in these studies. The morphology of the calcium carbonate crystallites was found to play a dominant role in the effectivity of ordering. Because of the mechanical deformations, the c crystallographic axis of calcite is preferentially perpendicular to the plane of compression molding and the direction of stretching in a variety of polymer composites of low-density polyethylene, polypropylene, impact-resistant polystyrene, and plasticized poly(vinyl chloride) containing different additives.

Original languageEnglish
Pages (from-to)918-923
Number of pages6
JournalMacromolecules
Volume18
Issue number5
Publication statusPublished - 1985

Fingerprint

Calcium Carbonate
Calcium carbonate
Paramagnetic resonance
Fillers
Polymers
Composite materials
Processing
Compression molding
Calcite
Ions
Low density polyethylenes
Vinyl Chloride
Crystallites
Stretching
Polypropylenes
Polystyrenes
Polyethylene
Spectroscopy
Defects
Electrons

ASJC Scopus subject areas

  • Materials Chemistry

Cite this

Electron paramagnetic resonance investigation of orientation produced by mechanical processing in the fillers of polymer composites. / Rockenbauer, A.; Jókay, László; Pukánszky, B.; Tüdös, Ferenc.

In: Macromolecules, Vol. 18, No. 5, 1985, p. 918-923.

Research output: Contribution to journalArticle

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