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Разработка состава ангоба повышенной белизны без использования фритты

Разработка состава ангоба повышенной белизны без использования фритты

Abstract

Ангобирование играет важную роль в процессе декорирования керамической плитки. Поскольку ангоб полностью скрывает цвет керамического черепка, а также играет роль компенсатора температурного коэффициента линейного расширения черепка и глазури, то при его использовании повышается долговечность изделия. Для исследования был принят стандартный состав ангоба, в который входят дорогостоящий турецкий полевой шпат, большое количество испанской фритты, силикат циркония и глинозём, что делает данный состав очень дорогостоящим. Авторами, в результате исследования, было проведено совершенствование состава ангобного покрытия, путем замены дорогостоящей фритты на криолит искусственный технический. Исследование показало, что использование криолита позволило получить ангоб, с более высоким показателем белизны, чем у стандартного состава, при этом снизилась пористость ангоба, благодаря чему расход глазурного шликера при нанесении на керамическую поверхность черепка стал гораздо меньше за счёт снижения впитывания. Таким образом, авторам удалось получить ангоб, качественные показатели которого будут немного лучше, чем при использовании фритты. Спекание с увеличением содержания криолита переходит к жидкофазовому механизму, что позволяет осуществлять дальнейшую модификацию составов ангоба, за счёт использования дешёвых материалов.

Engobing plays an important role in the process of decorating ceramic tiles. Since engobe completely hides the color of the ceramic crock, and also plays the role of the compensator coefficient of linear thermal expansion of the glaze crock and then when you use it increases the durability of the product. To investigate the composition of the standard was adopted engobe, which includes expensive Turkish feldspar, a large number of Spanish frit, zirconium silicate and alumina, which makes this structure is very costly. Authors as a result of the study was carried out improvement of engobe by replacing costly frit artificial cryolite technical. The study showed that the use of cryolite yielded engobe, with higher brightness than that of the standard formulation with reduced porosity engobe, allowing fuel glaze slip when applied to the surface of the ceramic crock was much less due to reduced absorption. Thus, the authors were able to get engobe, quality indicators which will be a little better than using frit. Sintering with increasing content of cryolite proceeds to liquid-phase mechanism, which allows for further modification engobe compositions, through the use of cheap materials.

Keywords

КЕРАМИЧЕСКАЯ ОБЛИЦОВОЧНАЯ ПЛИТКА, ОДНОКРАТНЫЙ ОБЖИГ, АНГОБ, ФРИТТА, КРИОЛИТ, ПЕСОК КВАРЦЕВЫЙ, КАОЛИН, БЕЛИЗНА, ВОДОПОГЛОЩЕНИЕ, ПОРИСТОСТЬ, ПЛОТНОСТЬ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold