Surface modification of calcium carbonates studied by inverse gas chromatography and the effect on mechanical properties of filled polypropylene

G J Price, D M Ansari

Research output: Contribution to journalArticle

30 Citations (Scopus)
154 Downloads (Pure)

Abstract

Inverse gas chromatography (IGC) has been used to characterize the surfaces of a pure calcitic calcium carbonate as well as samples that had been treated with sodium polyacrylate and/or stearic acid. The dispersive components of the surface free energy for the pure material agreed well with related literature data. Polar contributions to the surface interactions with a range of probes were determined. The results show that-the surface treatments reduced the polarities of the surfaces and that modification with stearic acid produced a non-polar, low-energy surface. Some mechanical properties of the polypropylene composites containing the modified calcium carbonates were found to correlate well with the filler surface energies.
Original languageEnglish
Pages (from-to)430-438
Number of pages9
JournalPolymer International
Volume53
Issue number4
DOIs
Publication statusPublished - 2004

Fingerprint Dive into the research topics of 'Surface modification of calcium carbonates studied by inverse gas chromatography and the effect on mechanical properties of filled polypropylene'. Together they form a unique fingerprint.

Cite this