PREPARATION AND CHARACTERIZATION OF NANOSIZED ULTRAMARINE BLUE PIGMENT FROM NATURAL KAOLIN SAMPLE
Abstract
- The aim of this research is the preparation of nanosized Ultramarine blue pigment for the production of pozzolanic cement. Ultramarine blue pigment was made from natural kaolin which was collected from Kyaukpataung Township, Mandalay Region, Myanmar. pH of natural kaolin sample was determined and then was characterized by EDXRF, XRD, SEM, FT IR and TG-DTA techniques. All of the results showed that natural kaolin sample had appropriate properties for the preparation of nanosized Ultramarine blue pigment. The procedure for the preparation of Ultramarine blue pigment involved the heat activation of kaolin. The activated kaolin was then characterized by XRD and SEM techniques. The comparison of XRD patterns of activated kaolin with natural kaolin sample showed that most peaks of the kaolinite mineral disappeared in activated kaolin. The average crystallite size of activated kaolin was 35.86. The comparison of SEM images of activated kaolin with natural kaolin sample showed that smaller aggregates were closer to one another in activated kaolin. Therefore, the natural kaolin sample was transformed into nano metakaolin state during calcination. The yield percent of the prepared Ultramarine blue pigment was 49.32 %. The Ultramarine blue pigment was characterized by XRD, SEM, and FT IR techniques. From analyzed data, Ultramarine blue pigment has cubic crystal form and has cohesive agglomerated structure.
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Year
- 2021
Author
-
May Myat Nwe
Subject
- Chemistry
Publisher
- Myanmar Academy of Arts and Science (MAAS)