TP38 : Preparation and evaluation of ceramic pigments from industrial waste materials for use in tile glaze
Thesis > Central Library of Shahrood University > Chemical and Materials Engineering > MSc > 2022
Authors:
[Author], Arash Yazdani[Supervisor], Mohsen Karimi[Supervisor]
Abstarct: In this research, an attempt has been made to use cheap and recycled raw materials to prepare ceramic pigments as an integral part of traditional ceramics, and in this way, while understanding the need to recover waste from different industries, using the waste from the electroplating process. Decorative chrome as a free raw material for the preparation of ceramic pigment, in addition to achieving a cheap price, a valuable step is taken to clean nature from this toxic waste. Ceramic pigment is mainly used for use in ceramic products, especially glazes, therefore, as the most important property, it should have stability, strength and optimal color performance in the range of firing temperature of the above products. In addition, while having a neutral structure, it does not enter into a chemical reaction with the glaze or ceramic body and does not affect its performance. In this research, firstly, the method of extracting chromium from chromium plating waste by co-precipitation chemical method, by adding some coloring agents (tin, iron, copper and cobalt elements) was explained. Then their effect was investigated in order to prepare more diverse colors. The results of TG/DTA thermal analysis showed that the 1000 °C is suitable temperature for the calcination of sediment resulting from co-precipitation reaction and converting it into pigment. The resulting pigments were used in the amount of five percent in tile glaze. Also, the structure and composition of pigments were characterized and studied by FESEM, XRF, XRD, and calorimetry analysis. The results show the nanometer structure of pigments and their applicability in tile glaze.
Keywords:
#Keywords: Ceramic pigment #decorative chrome plating #chemical co-precipitation method #thermal and chemical stability #ceramic glazes. Keeping place: Central Library of Shahrood University
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