the difference between Activated Calcium Carbonate and non-active Calcium Carbonate
Activated calcium carbonate surface coated with organic active agent, with strong hydrophobic properties, active calcium and inactive products, the most significant difference. Identification of the method is also relatively simple: take a little product placed in the water, after a certain period of time after mixing the vast majority of products suspended in the water, the water is not clear turbidity, compared with active calcium; if the product all or most of the sun , Water turbidity, compared with inactive products.
The active calcium product is coated with an organic active agent having a low surface tension, and its specific surface energy is lower than that of the non-activated product. The viscous resistance between the particles decreases and the flowability of the particles increases, so that the powder has a liquid- Of the mobility, inactive products, the flow performance was significantly worse. Should pay attention to the temperature, humidity and product moisture under the same conditions for comparison.
By the active products with good flow properties can be seen that the dispersion of the difference, active calcium products due to good dispersion, in the application process with the base material showed good compatibility and dispersion. The ability to penetrate the particles is also strong, but also easy to form dust, ordinary woven bags of urgent packaging products in the loading and unloading process and the use of larger dust.
4, particle size is different
As the active calcium product surfactant reduces the surface energy of the particles, the agglomeration strength of the particles is weakened, the particle size of the particles is obviously reduced, and the active calcium and non-active calcium products can be clearly distinguished by scanning electron microscopy.
5, oil absorption is different
The activity of the active calcium product is reduced, so that the porosity between the particles decreases, and the micro-surface of the particles becomes smooth and smooth, sothe active calcium carbonate product is lower than the inactive product when the oil absorption value of the product is detected.
6, calcium carbonate content is different
Active calcium products in the general organic active agent content of 1.0% -5.0%, so its calcium carbonate content than inactive products by 1% -5%. The smaller the particle size of the active calcium products (such as nano-calcium carbonate), the higher the content of surfactant, the lower the content of calcium carbonate.