Application of Barium Sulfate in Paint
author: vivien
2024-11-01
The application of barium sulfate in paint is superior to most other filler powders, with characteristics such as low cohesiveness, low light dispersibility, and fine particles. It is particularly suitable for pigment topcoats, varnishes, spray paints, etc., and has chemical resistance and weather resistance. Its inertness, insolubility in organic mediators such as water, acid, and alkali, good gloss, and fine particle size 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 types of coatings, such as primers, thick coatings, etc. Its low specific surface area, particle size distribution, and easy flowability make barium sulfate have low wear during processing. Barium sulfate is recommended for use in automatic primer surface layers, and even maintains good uniformity and smoothness during high filling.
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.
Barium sulfate used in powder coating can improve its glossiness, flowability, filling ability, and compatibility with various pigments.
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 costs. Light reflection can maintain the complete color of the pigment.
Barium sulfate, as a filler in silicone rubber and rubber compounds, can increase the hardness of silicone rubber and reduce its elasticity.
In the application of printing ink, barium sulfate's low wear resistance, high glossiness and color stability, low cohesiveness, combined with its easy flowability, make it suitable for high-quality printing ink.
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 with double barium sulfate without losing its glossiness.
Barium sulfate is particularly suitable for elastomers, as it does not contain any heavy metal pollution or rubber toxic gas, making it particularly suitable for food and pharmaceuticals, and can provide its stability and anti-aging properties.
In the application of thermoplastic materials, the thermal conductivity and flowability of barium sulfate can reduce its injection molding time, and barium sulfate can be used as a nucleating agent to improve its strength and thermal safety.
In general, barium sulfate is widely used as a constitutional pigment in coatings, playing an important role in improving the thickness, wear resistance, water resistance, heat resistance, surface hardness, impact resistance, and other properties of the coating film. The use of titanium dioxide and pigments as gaskets in plastics 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, which can effectively isolate noise and noise when used in drainage pipes, speakers, and audio systems. Barium sulfate N can be used in curtains to increase weight and provide advantages such as high gloss, good color, scratch resistance, and good dimensional stability for household appliance shells.
The difference between heavy calcium carbonate and light calcium carbonate
