Calcium carbonate is indispensable in the high-tech field!
Calcium carbonate, with the chemical formula of CaCO₃, is an inorganic compound widely found in nature and is the main component of rocks such as limestone and marble. In recent years, with the advancement of science and technology and changes in market demand, calcium carbonate has not only played an important role in traditional fields such as plastics, papermaking, coatings, rubber and other industries, but also has shown great application potential and market prospects in high-tech fields.
Calcium carbonate is present in these high-tech fields
Optical field
The application of calcium carbonate in the optical field is mainly reflected in luminescent materials and organic light-emitting diode (OLED) hole injection layers. As a luminescent inorganic substance, calcium carbonate has good chemical and thermal stability and can absorb ultraviolet rays well. It is a promising phosphor matrix. By doping with rare earth ions, luminescent materials with advantages such as high luminescence brightness, long afterglow time and slow decay can be obtained. They are widely used in lighting, displays, biomedical optical probes and military. In addition, calcium carbonate can also be used in OLED hole injection layers. By changing its solution concentration, adjusting the hole injection capacity and carrier balance, and improving the photoelectric properties of the device such as irradiance, the turn-on voltage and driving voltage of the device can be reduced.
Electronics field
Nano calcium carbonate, as an important basic raw material in the electronic ceramic components industry, can be used as a common grain refiner for barium titanate, effectively promoting chip densification and improving the voltage resistance of the device. In addition, since calcium carbonate has stable chemical properties and will not undergo significant chemical or physical changes due to temperature increases, its addition can also reduce the sensitivity of the dielectric constant to temperature changes, so that the device maintains good dielectric properties at high temperatures. Therefore, calcium carbonate has a wide range of application prospects in the electronics field, such as current limiting protection/demagnetization/starting/heating components, multilayer monolithic capacitor components, microwave components, piezoelectric/varistor components, etc.
Biomedical field
Calcium carbonate also shows great application potential in the biomedical field due to its advantages such as non-toxicity, large specific surface area, biodegradability, pH sensitivity, good mechanical properties and thermal stability. For example, calcium carbonate can be used as a drug carrier, has a strong ability to load drugs, and is not easily damaged. It can ensure that the carried drugs are smoothly released in the weakly acidic environment outside the cancer cells or tumor tissues and triggered by the lysosomes inside the cancer cells, thereby improving the therapeutic effect of the drugs. In addition, nano-calcium carbonate can also be used to prepare ultrasound-enhanced contrast agents, greatly improving the intensity of ultrasound imaging contrast signals.
