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Bright Future of the Application of Nanometer Calcium Carbon


      Nanometer calcium carbonate equipment as a kind of functional product of high additional value and various crystal forms and grain sizes is widely used in areas such as plastic, printing ink, rubber, papermaking and many other industries. It plays a very distinct role in improving qualities of plastic products such as electricity property, flame resistance, heat-resistant quality, and processing feature, and changing the glossiness and transparency of printing ink. Compared with other functional products of similar characteristics, it is mainly characterized by many merits such as convenience in getting raw material, cheap price, high-degree whiteness, well tinting strength, harmlessness, and wide range in choosing among the various surface finishing agents. >

      During the spunbonded productive process of nonwovens, adding calcium carbonate has becoming one of the methods that help to reduce the cost and ensure the functional realization for many companies. But the problem of adding coacervate into calcium carbonate constitutes a major bottleneck in the applicable area. Then the key lies in the fact that the dispersion and compatibility generated in nanometer calcium carbonate plant should be solved properly. While adding calcium carbonate into the equipment, its potentials will be given full play when the grain size is narrower and all of the nano-particles scatter evenly.

      Coupled with the rise of nanometer technology, one of the frequently discussed topics is that how to improve the property of coating by applying nanometer calcium carbonate into it. Especially, with the establishment of some nanometer calcium carbonate production lines of ten-thousand-ton scale, there especially is an urgent need in applying it into more areas, including painting industry. However, there will be a lot of demerits in the direct application of nanometer calcium carbonate into coating area. There will be large possibility of aggregation since the particles are in thermodynamically unstable states, and the film property will be largely influenced by surface defect, which is caused by low bonding force of base stock and nanometer calcium carbonate. The phenomenon can be explained by the fact that calcium carbonate is hard to be dispersed in organic medium since it is of high polarity.

      Besides, the technology adopts the traditional carbonization method in processing common light calcium, and especially in the nanometer calcium carbonate machine, the different types of nanometer calcium carbonate used in various areas such as plastic, rubber, painting ink, and papermaking are to be obtained through many control agents for crystal forms, various processing conditions and activating treatments. Therefore, there sees a wide and bright future in application of nanometer calcium carbonate with easy operational processes and the good quality and low prices of products.