Structure and surface coverage of water-based stearate coatings on calcium carbonate nanoparticles

Poly(vinyl alcohol)/CaCO3‐diacid nanocomposite: Investigation of physical and wetting properties and application in heavy metal adsorption

“…However, it is well known that CaCO 3 with the high energetic hydrophilic surface is compatible with polar solvent and is not in well matched with the low energy surface of polymers. Thus, it tends to clot during compounding with the organic polymer matrix …”

Development of Calcium Carbonate Double-Coated with Chitosan-Adipic Acid as a Promising Antibacterial Filler

“…For instance, the behavior of coated calcium carbonate particles under heating was of great value for its industrial applications (9). The main types of surface modifiers that have been applied during production are fatty acids and organo-silane coupling agents (10). Industrial coating with fatty acids is done in water because of the low cost and simplicity of the process (10).…”

“…The main types of surface modifiers that have been applied during production are fatty acids and organo-silane coupling agents (10). Industrial coating with fatty acids is done in water because of the low cost and simplicity of the process (10). However, previous studies on the surface characterization of calcium carbonate particles coated with stearic acid involved synthetic conditions such as high speed mixing for dry-coating or dissolving stearic acid in toluene for wet-coating (10).…”

“…Industrial coating with fatty acids is done in water because of the low cost and simplicity of the process (10). However, previous studies on the surface characterization of calcium carbonate particles coated with stearic acid involved synthetic conditions such as high speed mixing for dry-coating or dissolving stearic acid in toluene for wet-coating (10). During coating with solutions of a stearin salt in water, no matter what the concentration used, a considerable part of the surface of calcium carbonate was incompletely coated with stearin (10).…”

“…However, previous studies on the surface characterization of calcium carbonate particles coated with stearic acid involved synthetic conditions such as high speed mixing for dry-coating or dissolving stearic acid in toluene for wet-coating (10). During coating with solutions of a stearin salt in water, no matter what the concentration used, a considerable part of the surface of calcium carbonate was incompletely coated with stearin (10). Silane coupling agents are chemical substances capable of reacting with both the reinforcement and the resin matrix of a composite material and may also bond inorganic fillers or fibers to organic resins, promoting strong interface bonding.…”