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Polymers and Polymer Composites

PRODUCTION AND CHARACTERIZATION OF POLYETHYLENE/CALCIUM CARBONATE COMPOSITE MATERIALS BY USING CALCIUM CARBONATE DRY AND WET COATED WITH DIFFERENT FATTY ACIDS

March 1, 2013 By: Ilhan Ozen; Suleyman Simsek; Feride Eren Research article

Title: PRODUCTION AND CHARACTERIZATION OF POLYETHYLENE/CALCIUM CARBONATE COMPOSITE MATERIALS BY USING CALCIUM CARBONATE DRY AND WET COATED WITH DIFFERENT FATTY ACIDS
Page Range: p.183-188
Author(s): Ilhan Ozen; Suleyman Simsek; Feride Eren
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 21
Issue No: No.3

Abstract
In this study, calcium carbonate (CaCO3) was coated by suitable chemicals using aqueous or dry coating methods in the optimum conditions. Uncoated calcium carbonate having a mean particle size (d50) of 1.6 microns and a top cut (d98) of 8 microns was provided commercially and it was dry and wet coated with saturated fatty acids whose carbon numbers vary between 14 and 18. Coating amount was adjusted to 0.5-2%. Particle size and particle size distribution of the calcium carbonates before and after coating were investigated. After characterisation of the coated calcium carbonates, they were incorporated into linear low density polyethylene (LLDPE) in changing amounts using a twin screw extruder. The effects of coating chemicals, coating conditions and filler amount on composite materials were studied by evaluating the thermal (DSC and TGA) and appearance (Scanning Electron Microscope (SEM)) analyses. 11 Refs.

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