The relationship between surface modification of calcium carbonate and coating uniformity
Calcium carbonate is a commonly used inorganic filler and is widely used in coatings. However, its hydrophilicity makes it difficult to disperse in coatings and prone to agglomeration, resulting in uneven particles or brush marks on the surface of the coating, affecting the smoothness and visual effect of the coating. Calcium Carbonate Modification Machine uses advanced surface modification technology to change the surface properties of calcium carbonate, enhance its compatibility and dispersibility in organic matrices, and thus improve the overall quality of the coating.
Surface modification technology
The equipment chemically reacts with the surface of calcium carbonate by adding organic modifiers to form a protective organic coating. This organic coating layer can reduce the hydrophilicity of calcium carbonate particles and make them more lipophilic in organic matrices, thereby avoiding agglomeration between particles and enhancing dispersibility.
Support of efficient drying system
The efficient drying system equipped with Calcium Carbonate Modification Machine can accurately control the temperature and humidity during the modification process, ensure the drying effect of calcium carbonate powder, and significantly improve its fluidity. The dried calcium carbonate powder can be more evenly distributed in the paint, reducing the agglomeration of particles in the paint, laying the foundation for the smoothness and uniformity of the coating.
Specific manifestations of improving smoothness and uniformity
The modified calcium carbonate has significantly improved dispersibility and can be evenly distributed in the paint, reducing the uneven coating caused by particle aggregation. Through this modification, the coating surface is not only smoother, but also effectively eliminates defects such as brush marks and bubbles during the coating process, improving the overall appearance quality of the coating.
Due to the improved dispersibility of calcium carbonate, the paint can cover the underlying material or surface defects more evenly during coating, thereby improving the covering power of the coating. Whether in terms of the covering power of white paint or the uniformity of colored paint, the modified calcium carbonate can provide better performance.
The modified calcium carbonate powder has better fluidity and can be applied more easily during coating construction. Highly dispersible fillers reduce the problems of agglomeration and precipitation in coating construction, making the paint smoother when brushing and spraying, and further ensuring the uniformity and smoothness of the coating.
The uniform distribution of calcium carbonate in the coating not only improves the smoothness and aesthetics, but also enhances the wear resistance and scratch resistance of the coating. The good compatibility of the modified calcium carbonate with the coating matrix strengthens the adhesion of the coating, which significantly improves the durability and anti-aging performance of the coating.
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+86-17717510892