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Title: Characterisation of stearatestearic acid coated fillers
Authors: Gilbert, Marianne
Petiraksakul, Pinsupha
Mathieson, Isla
Issue Date: 2001
Publisher: © Maney Publishing
Citation: GILBERT, M., PETIRAKSAKUL, P. and MATHIESON, I., 2001. Characterisation of stearatestearic acid coated fillers. Materials Science and Technology, 17 (11), pp. 1472-1478
Abstract: Selected magnesium hydroxide and calcium carbonate fillers were dry coated with stearic acid and calcium, magnesium, and zinc stearates. The course of the coating reaction was monitored using a quantitative diffuse reflectance Fourier transform infrared spectroscopy method and by thermal analysis. The coated fillers were also examined by wide angle X-ray diffraction and by X-ray photoelectron spectroscopy. These techniques were shown to produce complementary information. When the dry coating process was useded, complex reactions occurred. Stearic acid reacted to produce stearate, while the stearates melted and formed coatings, but in some cases they also appeared to form polymorphic metal stearates. Stearic acid produced the best coverage on calcium carbonate, but the poorest on magnesium hydroxide. Of the metal stearates, the best filler coverage was produced when zinc stearate was used, while calcium stearate was the least effective coating.
Description: This article was published in the journal, Materials Science and Technology [© Maney Publishing] and is available at: http://www.ingentaconnect.com/content/maney/mst
Version: Published
URI: https://dspace.lboro.ac.uk/2134/4508
ISSN: 0267-0836
1743-2847
Appears in Collections:Published Articles (Materials)

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