barium sulfate manufacturer

In the paint industry, titanium dioxide (TiO2) is highly valued for its superior opacity, whiteness, and weather resistance. However, its high cost and limited dispersibility have driven the industry to explore synergistic alternatives.

Yunfu Hongzhi New Materials Co., Ltd.'s Ultra White Barium Sulfate M-700 series, a functional powder material, can work alongside titanium dioxide to maintain its original performance while significantly lowering paint production costs.

I. Physicochemical Mechanisms of Synergistic Effects

1. Dispersion Synergy

①Reducing TiO2 Agglomeration: Barium sulfate particles act as "spacers," physically separating TiO2 particles to reduce interparticle forces, prevent agglomeration, and thus cut grinding time and energy consumption (typically reducing dispersion time by 20%-30%).

②Optimizing Rheology: The low oil absorption of barium sulfate [M-700 oil absorption value is about 13g/100g] lowers the viscosity of the paint system, increases solid content, reduces linear expansion rate, decreases VOC, improves TiO2 fluidity, and enhances application performance.

2. Optical Performance Complementarity

The refractive index of TiO2 (about 2.7) and barium sulfate (about 1.64) complement each other. Barium sulfate optimizes optical effects through:

①Enhancing Whiteness and Maintaining Color: The smooth surface and uniform particle size distribution of barium sulfate [M-700 D50 about 0.7μm] fill the gaps between TiO2 particles, maximizing TiO2 reflection efficiency, thereby increasing coating whiteness and color saturation.

②Maintaining Gloss: The spherical structure of Ultra White Barium Sulfate M-700 aligns to form a smooth surface, reducing light scattering and maintaining the mirror effect of the coating.

3. Spatial Support and Mechanical Enhancement

①Spacing Effect: Ultra White Barium Sulfate M-700 particles form a rigid skeleton between TiO2 particles, preventing flocculation during coating curing and maintaining uniform distribution.

②Impact Resistance Improvement: The high hardness (Mohs hardness 3~3.5) and chemical inertness of barium sulfate absorb external stress, inhibit crack propagation, and enhance the coating's impact resistance and wear resistance.

II. Core Advantages of Synergistic Effects

1. Reducing TiO2 Usage and Saving Costs

Through the filling and optical synergy of Ultra White Barium Sulfate M-700, TiO2 usage can be reduced by 10%-20% while maintaining the same opacity, significantly lowering raw material costs.

2. Optimizing Paint Processing

The easy dispersibility of Ultra White Barium Sulfate M-700 reduces high-speed dispersion or sanding time, improving production efficiency and lowering equipment energy consumption.

III. Application Scenarios

In outdoor paints and coatings requiring high weather resistance, the synergistic use of Ultra White Barium Sulfate M-700 and TiO2 significantly enhances the coating's weather resistance and chemical stability, reducing fading and chalking.

For applications requiring wear and impact resistance, such as automotive and industrial paints, the synergistic use of Ultra White Barium Sulfate M-700 and TiO2 makes the coating more durable and environmentally friendly.

IV. Conclusion

Yunfu Hongzhi New Materials Co., Ltd.'s Ultra White Barium Sulfate M-700 series, through its unique optical properties, synergistic dispersion function, and spatial support effects, forms a multi-dimensional synergy with TiO2, ultimately achieving a "1+1>2" effect.

The synergistic effect of Ultra White Barium Sulfate M-700 and TiO2 reduces TiO2 usage costs, maintains paint gloss, increases solid content, enhances whiteness, and provides innovative solutions for high-value-added paint products.

In the future, with the application of nano-modification and surface coating technologies, the synergistic potential of barium sulfate will be further unleashed.