Industrial Samples Calcium Carbonate Nanopowder 20-110nm High-Purity White Powder for Scientific research-100 Gram

Specific surface area: ~24 m²/g;Magnesium oxide content: ~0.26%
Applications:Plastics, rubber, paper industry, coatings and inks

1) Low moisture content, near neutral pH, and good chemical stability; it does not react chemically with the curing adhesive in the adhesive. 2) High addition amount can significantly reduce the cost of adhesive products (e.g., over 50% in silicone rubber gaskets, 20-30% in polyurethane adhesives). 3) It has a reinforcing effect, improving the mechanical properties of adhesives, reducing their shrinkage and coefficient of thermal expansion during curing, increasing thermal conductivity, improving heat resistance and adhesion, enhancing mechanical strength (hardness and compressive strength) and corrosion resistance; it also acts as a lubricant, improving operating conditions and comprehensively improving bonding performance. 4) Nano-calcium carbonate has small particle size and large specific surface area. After certain surface treatments, it has good compatibility with adhesives. In adhesive systems, it can be used as a thixotropic agent to adjust viscosity, prevent sagging during vertical application, and improve retention characteristics. 5) Nano-calcium carbonate is easily colored during the pigment production process and will not affect the color of the finished product. 6) It has different modifying effects in different adhesives. In PVC plastisol, it can improve its rheological properties; in silicone structural sealants, it can increase strength and wear resistance; in hot melt adhesives, it can increase volume, reinforce, and improve heat resistance; and in water-based adhesives, it can thicken and increase tack.