Skip to main content

Nanocalcite as a Nanoparticle/Nanopowder of CaCO3

 
Nanocalcite is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3). Nanocalcite crystals are trigonal-rhombohedral. Nanocalcite is transparent to opaque and may occasionally show phosphorescence or fluorescence. The nature, shape and dispersion characteristics of the nanocalcite particles effect the mechanical and other properties of the polymers.
The calcium, carbon and oxygen atoms can arrange themselves in three different ways, to form three different calcium carbonate minerals. The most common arrangement is the hexagonal form known as calcite. A number of different nanocalcite crystal forms are possible: scalenohedral, rhombohedral and prismatic.
The advantages of using nanocalcite are that, they can improve the air-tightness, opacity, resistivity and stiffness, and provide good stability, and good electricity insulation. Therefore, use of nanocalcite is important in composite materials. Nanocalcite has been used extensively as filling material in various industries in order to improve some mechanical properties of the composite materials and to reduce the product costs.
The carbonization method is the most appropriate method for nanocalcite production and it is widely used commercially. Because of the availability of raw materials and their low costs, carbonation method for producing nanocalcite has advantages for large scale. The main chemicals used in nanocalcite production in large scale studies were Ca(OH)2 powders and CO2 gas.
Advanced applications of nanocaltite essentially involve the synthesis of stable, homogeneous, and nano sized particles to be used as filler material in polyester films for magnetic types’ productions, builder for detergent productions, coating pigment in the production of paper and cosmetic industries.
Microbiologically precipitated calcite has a wide range of applications, such as soil remediation, soil stabilization and concrete repair.
  • ­Nanocalcite is used in magnetic types’ production.
  • ­Nanocalcite is used in detergent production.
  • ­Nanocalcite is used in cosmetics industry.
  • ­Nanocalcite is used in paper production.
  • ­Nanocalcite is used for soil remediation and stabilization.
  • ­Nanocalcite is used for concrete repair.
Labels:

Comments

Post a Comment

Popular posts from this blog

Multi Walled Carbon Nanotube Dispersions

Carbon nanotubes (CNTs)  have attracted enormous attention in recent years due to its unique physical, electronic, optical and potential applications in materials science and nanotechnology. The van der Waals interaction between tubes, however, makes CNTs aggregate in most organic solvents and aqueous solutions, which is the major limitation of their practical applications.Various approaches have been studied to alter the CNT surface to promote the dispersion of individual nanotubes and prevent their reaggregation. On the basis of this widely accepted viewpoint, numerous techniques such as covalent bonding, surfactant coating and polymer wrapping have been developed for surface modification or sidewall functionalization.These methods, however, are complicated, time-consuming and cause permanent damage to the CNT structure and properties of the surface, which produces residues of the dispersion agent for the final product. Figure: Single Walled Carbon Nanotube (SWCNT) It has re
Post a Comment
Read more

Carbon Nanotube Threads

Since its discovery, carbon nanotube (CNT) has attracted many interests in different technology fields due to its extraordinary properties. Properties such as, high strength, great electrical and thermal conductivity, light weight and flexibility made CNT one of the best materials for wide range of applications. However, from its name it can be understood that CNT is a nanoscale material which is very small to be applied for the production of daily products. Researchers all around the world are working on finding methods and techniques which could produce new materials with the extraordinary properties of CNT. Image retrieved from:  https://worldindustrialreporter.com/strong-light-flexible-carbon-nanotubes-threads-with-ultrahigh-conductivity/ One of these research is focusing on the production of high strength threads that can be used in the manufacturing of fabrics, cables and ropes. An international group of scientists were able to produce a flexible conductive thread that i
Post a Comment
Read more

Magnesium Oxide Nanoparticles/Nanopowder and Applications

General Information about Magnesium Oxide Magnesium oxide which has the chemical formula of MgO, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of Magnesium. It is a white powder at room temperature. Magnesium Oxide has very high melting point (2825  o C) and boiling point (3600  o C).                                                                                                                                                                                Magnesium Oxide Nanoparticles/Nanopowder and Usage Areas                                        Magnesium Oxide nanoparticles/nanopowder  can be used in many different areas. For example Magnesium Oxide nanoparticles/nanopowder are used as a fire retardant for chemical fiber and plastics trades. For making crucible, smelter, insulated conduit, electrode bar, and electrode sheet  Magnesium Oxide Nanoparticles/Nanopowder  can be used as electric insulating material. Magnesium Oxide nan
Post a Comment
Read more