Yuan Lei's Little Knowledge | Ten Major Uses of Barium Sulfate

Guangdong Yuanlei Powder Co., Ltd. was founded in 2005 and is located in Shunde, the central jurisdiction of the Guangdong Hong Kong Macao Greater Bay Area; Located near Hong Kong and Macau, it is a blessed place that connects with the international community and radiates to the mainland. Yuanlei Powder is a modern enterprise that owns its own mines, operates its own production, and integrates independent marketing. A modern chemical plant with research and development capabilities has been built with huge investment in Jiangmen, Guangdong, known as the "Top 100 Township Enterprises". The sales network of Yuanlei powder is spread throughout South China, Central China, East China, Southwest and other regions.

Barium sulfate is mainly made from barite and processed through processes such as ore dressing, washing, and crushing. The hardness of barium sulfate is 3-3.5 (Mohs), with a specific gravity of 4.3-4.7. It has the characteristics of high specific gravity, low hardness, and brittleness. Barite is almost insoluble in water, ethanol, and acid, but soluble in hot concentrated sulfuric acid. With the development of some high-performance barium sulfate products, the application field of barium sulfate is constantly expanding.

At present, barium sulfate is widely used and the industries with high demand include the following:

1. The application of barium sulfate in paint is superior to most other filling powders, with characteristics such as low cohesion, low light dispersibility, and fine particles. It is particularly suitable for pigment topcoats, varnish, spray paint, etc., and has chemical and weather resistance. It is inert, insoluble in organic mediators such as water, acid, and alkali, and its excellent glossiness and particle fineness enable the topcoat to be maintained during long-term exposure. Barium sulfate is recommended for topcoats to increase surface hardness and color stability.

Barium sulfate has high filling properties and can be applied to all coating series, such as primers, thick paste coatings, and other types. Its low specific surface area, particle size distribution, and easy flowability make barium sulfate have low wear during processing. Barium sulfate is recommended for automatic primer surface layers and even maintains good uniformity and smoothness during high filling.

2. Barium sulfate is used in latex paint and is known as "acid resistant" latex paint. Even when exposed, it has acid resistance. The dispersibility, optical rotation retention, and flowability of barium sulfate can enhance its chemical properties.

3. Barium sulfate used in powder coatings can improve their gloss, fluidity, filling properties, and compatibility with various pigments.

4. In the application of pigments, barium sulfate is used as a spacer for titanium dioxide and pigments in plastics, which can reduce the amount of pigment added and save about 10% of cost. Light reflection can maintain the complete color of the pigment.

5. The titanium dioxide or pigment particles in coatings are usually not completely dispersed, and the particles will aggregate together, causing a decrease in scattering rate and covering power, making these titanium dioxide agglomerates a great waste. The average particle size of MICROBARI submicron barium sulfate is around 1.3um, which is approximately equal to titanium dioxide particles (with an average particle size of 0.3) μ About twice the size of m, the addition of MICROBARI submicron barium sulfate can separate the agglomerated titanium dioxide particles. Each submicron barium sulfate particle has sufficient surface energy and can adsorb 4-10 titanium dioxide particles around it, effectively achieving spatial segregation and maximizing the scattering rate of each titanium dioxide particle. Applying MICROBARI submicron barium sulfate as a physical pigment to high-end products such as thin spray powder coatings, electrophoretic coatings, and high gloss coatings can give your products a competitive advantage in technology and price.

6. Barium sulfate, as a filler in silicone rubber and mixed rubber, can increase the hardness of silicone rubber and reduce its elasticity.

7. In the application of printing ink, barium sulfate's low wear resistance, high glossiness, color stability, low cohesion, and combined with its easy flowability make it suitable for high-quality printing ink.

8. Barium sulfate is used in the production of paper coatings, and its introduction can increase its glossiness and fluidity, such as art paper and medium white transparent colored paper. The titanium dioxide part can be replaced by double barium sulfate without losing its glossiness.

9. Barium sulfate is particularly suitable for elastomers, as it does not contain any heavy metal pollution or rubber gas, making it particularly suitable for food and medicine, and can provide its stability and anti-aging properties.

10. In the application of thermoplastic materials, the thermal conductivity and flowability of barium sulfate can reduce its injection molding time, and barium sulfate can serve as a nucleating agent to improve its strength and thermal stability.

Overall, barium sulfate is widely used as a pigment in coatings, playing an important role in improving the thickness, wear resistance, water resistance, heat resistance, surface hardness, and impact resistance of coatings. As a gasket for titanium dioxide and pigments in plastics, it can reduce the amount of pigment added and save about 10% of costs. Barium sulfate can achieve a filling rate of 80% of its weight. When used in drainage pipes, speakers, and sound systems, it can effectively isolate noise and noise. When used in curtains, barium sulfate N can increase weight. When used in home appliance casings, it can provide advantages such as high gloss, good color, scratch resistance, and good dimensional stability.