As a precipitated barium sulfate supplier in China , precipitated barium sulfate appearance was a white amorphous powder having a relative density of 4.50 (15 ° C) and a melting point of 1 580 ° C. Due to its high refractive index (1.63~1.65), it exhibits a whiter color and a certain hiding power. At present, 95% of domestic manufacturers use the Glauber’s salt method to produce precipitated barium sulfate.
Precipitated barium sulfate can be used as a supplementary filler and is widely used in various coatings, plastics, rubber, paints, inks, insulating tapes, ceramics, storage batteries, enamel and other industries. Can be used in acid resistant rubber products and general products. It can also be used as a surface coating agent, a sizing agent, a weighting agent, and so on.
The Usage of Precipitated barium sulfate/ The application of Precipitated barium sulfate
Precipitated barium sulfate is used as a gasket for titanium dioxide and pigments in plastics to reduce the amount of pigment added and to save about 10% of the cost. The application of precipitated barium sulfate (about 25%) to PP can make the PP surface resemble ABS without affecting the existing properties of PP, providing a high gloss and high hardness surface. Precipitated barium sulfate can reach 80% of its weight filling rate. It can be used to effectively isolate noise and noise when used in drain pipes, speakers and sounds. Precipitated barium sulfate N can be added to curtains to increase weight. It is used in household appliances to provide high gloss, good color, scratch resistance and dimensional stability.
Precipitated barium sulfate is superior to most other fillers, especially in chemical resistant coatings. It is inert, insoluble in water, acid, alkali and organic. Excellent gloss and fineness of the particles make the topcoat exposed for a long time. It can be protected. Precipitated barium sulfate is recommended for topcoats, which increase surface hardness and color stability.
Low abrasion, high gloss and color stability, low cohesiveness, combined with its flowability make barium sulfate suitable for high quality printing inks. Precipitated barium sulfate is recommended for high optical performance oils.
4.Latex paint industry
For reasons of weight, precipitated barium sulfate can only be used in latex paints, mainly for high gloss and silk paints, and is known as “acid resistant” latex paint. It has acid resistance even when exposed. Easy dispersibility of precipitated barium sulfate , optical rotation and easy to retain properties can increase its chemical properties. Precipitated barium sulfate can be used in high gloss paints and latex paints.
5.Primer and thick coating
Precipitated barium sulfate has high filling properties and can be applied to all types of coatings, such as primers, high-build coatings, etc. Its low specific surface area and particle size fractionation and flowability make precipitated barium sulfate in the process. With low wear, precipitated barium sulphate is recommended for automatic primer surface layers and maintains good uniformity and smoothness even during high filling.
6.Precipitated barium sulfate for powder coating
Powder coatings are one of the fastest growing markets in the coatings industry. Due to the special properties of precipitated barium sulfate, low binder demand and excellent dispersibility, it is an indispensable component of powder coatings. Precipitated barium sulphate has a higher specific gravity than titanium dioxide, giving us the opportunity to formulate non-flying lacquer powder coating formulations, even when using fine powders. The mechanical properties of precipitated barium sulphate-filled powder coatings in a typical powder coating formulation are related to particle size (the finer the finer the better).
7.Precipitated barium sulfate for waterborne coatings
Due to the chemical inertness and insolubility of precipitated barium sulfate, it is used in waterborne coatings as well as in conventional coatings. The role of micronized precipitation of barium sulfate has been confirmed, even in electrophoretic coatings (the requirements for particle deposition or wettability of electrophoretic coatings are very complex). Usually the amount of substitution for titanium dioxide is in the range of 10-30%.