Interaction between TiO2 and calcite mixture during grinding of pigment in water based paints

F. Karakas*, B. Vaziri Hassas, M. S. Çelik

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Water based paint formulations consist of some industrial minerals with quantities varying from 20 to 50 %. Quality of paint is directly related to these minerals used as pigment or filler in the production. Titanium dioxide is the most important and expensive pigment in paint formulations. Other minerals such as calcite and calcined kaolin are used as filler and mainly as a substitute for TiO2. Consequently, particle-particle interactions including adsorption, coating and size distribution of pigment mixture directly affects the paint quality. In the present paper, a new type of pigment mixture for possible use in architectural water based paints was developed through grinding. The effect of different types of grinding methods on physical properties of TiO2 and calcite mixture and the quality of paint produced by these mixtures have been revealed. Three different types of mills; conventional ball mill, vibratory ball mill and high-speed attritor were used for grinding of TiO2 and calcite. Viscosity, zeta potential and particle size distributions were used to characterize the pigment mixtures obtained upon grinding. The quality of paint was evaluated by standards based on both wet and dry paints such as viscosity, density, opacity and gloss. The paint produced with the pigment mixtures prepared in vibratory ball mill and high speed attritor showed improvement in physical properties particularly in the distribution and dispersion of mineral particles.

Original languageEnglish
Title of host publication26th International Mineral Processing Congress, IMPC 2012
Subtitle of host publicationInnovative Processing for Sustainable Growth - Conference Proceedings
PublisherIndian Institute of Metals
Pages2378-2383
Number of pages6
ISBN (Print)8190171437, 9788190171434
Publication statusPublished - 2012
Event26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - New Delhi, India
Duration: 24 Sept 201228 Sept 2012

Publication series

Name26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth - Conference Proceedings

Conference

Conference26th International Mineral Processing Congress, IMPC 2012: Innovative Processing for Sustainable Growth
Country/TerritoryIndia
CityNew Delhi
Period24/09/1228/09/12

Keywords

  • Calcite
  • Grinding
  • Paint
  • Pigment

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