Can precipitated barium sulfate replace titanium dioxide in the coating industry?
- Categories:Industry News
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- Time of issue:2021-09-06
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(Summary description)The cost of using titanium dioxide as a coating is quite expensive, as we all know. At present, the coating industry is using other cheap fillers to replace titanium dioxide, but the requirement is not to reduce the quality of the coating. So I want to discuss whether precipitated barium sulfate can really replace some titanium dioxide. Precipitated barium sulfate can replace some titanium dioxide, it can add the whiteness of the coating and the concealment of the supply, but the amount of replacement is not very large.
Can precipitated barium sulfate replace titanium dioxide in the coating industry?
(Summary description)The cost of using titanium dioxide as a coating is quite expensive, as we all know. At present, the coating industry is using other cheap fillers to replace titanium dioxide, but the requirement is not to reduce the quality of the coating. So I want to discuss whether precipitated barium sulfate can really replace some titanium dioxide. Precipitated barium sulfate can replace some titanium dioxide, it can add the whiteness of the coating and the concealment of the supply, but the amount of replacement is not very large.
- Categories:Industry News
- Author:
- Origin:
- Time of issue:2021-09-06
- Views:0
The cost of using titanium dioxide as a coating is quite expensive, as we all know. At present, the coating industry is using other cheap fillers to replace titanium dioxide, but the requirement is not to reduce the quality of the coating. So I want to discuss whether precipitated barium sulfate can really replace some titanium dioxide. Precipitated barium sulfate can replace some titanium dioxide, it can add the whiteness of the coating and the concealment of the supply, but the amount of replacement is not very large. Titanium dioxide is an excellent white pigment, not a filler. There are two types of fillers for paint production: inorganic and organic.
White pigments for coatings mainly include titanium dioxide, lithopone, zinc oxide, etc. Titanium dioxide also includes rutile and anatase. Different types of pigments have different crystal layouts. The rutile titanium dioxide has a fine layout and good weather resistance. It is easy to powder for external use. Lithopone is easy to darken and powder due to the presence of zinc sulfide. Zinc oxide is classified as an active pigment, and it is easy to cause coating gelation when used in a water-based coating system. The white pigment used in paint is intended to produce white color and concealment. The uniform dispersion of the particle size of the titanium white pigment has a great influence on the concealment and decolorization of the paint. This means that precipitated barium sulfate cannot replace titanium white, but it can produce a synergistic effect, add the useful utilization of titanium white, and reduce the amount of titanium white.
In general, precipitated barium sulfate cannot completely replace titanium dioxide, and its use is different depending on its chemical composition. The requirements are also different. To completely replace the titanium dioxide also needs future scientific development and research. The precipitated barium sulfate made by it can completely replace titanium dioxide as a coating.
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