The application field of calcium carbonate is expanding: from traditional industries to high-tech frontiers
High purity calcium carbonate(CaCO₃) is an inorganic compound widely found in nature, and its main components include rocks such as limestone and marble. With the advancement of science and technology and changes in market demand, High purity calcium carbonate not only occupies an important position in traditional industries such as plastics, papermaking, coatings and rubber, but also shows great application potential and market prospects in high-tech fields.
Optical field
In the optical field, High purity calcium carbonate is mainly used for luminescent materials and hole injection layers of organic light-emitting diodes (OLEDs). As a luminescent inorganic substance, High purity calcium carbonate has excellent chemical and thermal stability and can effectively absorb ultraviolet rays. It is a promising phosphor matrix. By doping with rare earth ions, luminescent materials with high luminescence brightness, long afterglow time and slow decay can be obtained, which are widely used in lighting, displays, biomedical optical probes and military fields. In addition, High purity calcium carbonate is also used in the hole injection layer of OLED. By adjusting the solution concentration, the hole injection capacity and carrier balance are optimized, thereby improving the photoelectric performance of the device and reducing the turn-on voltage and driving voltage.
Electronics
In the electronics field, nano High purity calcium carbonate, as an important basic raw material for electronic ceramic components, is widely used as a barium titanate grain refiner to promote the densification of chips and improve the voltage resistance of devices. High purity calcium carbonate can also maintain good dielectric properties at high temperatures due to its stable chemical properties, reducing the sensitivity of the dielectric constant to temperature changes. Therefore, High purity calcium carbonate has a wide range of application prospects in the electronics field, covering current limiting protection, demagnetization, starting, heating elements, multilayer monolithic capacitor elements, microwave elements, piezoelectric/piezoresistive components and other directions.
Biomedical field
Due to the fact that High purity calcium carbonate is non-toxic and harmless, has a large specific surface area, is biodegradable, has good pH sensitivity, and has good mechanical properties and thermal stability, it has great application potential in the biomedical field. For example, High purity calcium carbonate can be used as a drug carrier with excellent drug loading capacity, and can ensure that the drug is smoothly released in the weakly acidic environment of cancer cells or tumor tissues and under the triggering of intracellular lysosomes, thereby improving the therapeutic effect of the drug. In addition, nano High purity calcium carbonate can also be used to prepare ultrasound enhanced contrast agents, which significantly improves the intensity of ultrasound imaging signals.
