Yuan Lei Small Classroom | 6 Application Fields of Ultrafine Barium Sulfate
6 Application Fields of Ultrafine Barium Sulfate
1. Paper industry
Barium sulfate has high whiteness and strong hiding power. Ultrafine barium sulfate can be used as one of the raw materials for the production of copper plate paper surface coating agent. The fine barium sulfate particles with scale morphology can be used to make copy paper, which can make the paper surface smooth and shiny, especially suitable for information paper with high surface smoothness requirements, such as color copy paper.
2. Coatings industry
Barium sulfate has high whiteness and good hiding performance, the most important use is as a coating (oil coating, powder coating, water-based coating, special coating, etc.) filler.
Ultrafine barium sulfate used as a filler can reduce the cost of coating production. Barium sulfate used in coatings generally requires stable whiteness, pH<8, no mechanical impurities, and no graininess.
3. Plastic and rubber industry
The addition amount of barium sulfate has a crucial influence on the mechanical properties of the composites. With the increase of the addition amount of barium sulfate, the toughness and strength of the composites will increase first and then decrease.
The introduction of ultrafine barium sulfate particles on the thermal properties of the polymer is mainly reflected in two aspects, one is to change the crystallization characteristics of the polymer matrix; the other is to affect the thermal decomposition behavior of the material, so that its thermal stability changes.
4. Ink pigment industry
Ultrafine barium sulfate has a lot of performance indicators and titanium dioxide close, adding the right amount of ultrafine barium sulfate products can prevent the occurrence of flocculation phenomenon, so as to achieve the purpose of reducing the amount of titanium dioxide without affecting the product hiding power, but also can make the product weather resistance, acid and alkali resistance and other indicators have been improved.
Ultrafine barium sulfate particles can be used as a dispersant in colored pigments used in coatings, printing, inks, etc., to make the hue more vivid, gloss, smoothness and fullness better.
Ultrafine barium sulfate is used as a filler in the production of color lead printing ink, the addition amount is 10%-30%, the PH is neutral, and the whiteness and oil absorption value are stable.
5, Medical Field
The addition of barium sulfate to polyethylene to prepare X-ray development of polyethylene barium sulfate composite materials can solve the clinical application for the use of T-type copper IUD problems. Fine uniform barium sulfate can also be used as an auxiliary agent or additive for X-ray double contrast techniques.
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The difference between barium sulfate（BaSO4） and barium sulfite（BaSO3）
Kaolin is a non-metallic mineral, which is a kind of clay and clay rock mainly composed of kaolinite clay minerals. Because it is white and delicate, also known as white earth. It is named after Gaoling Village, Jingdezhen, Jiangxi Province.