Synthetic Mica and Its Applications

Abstract

The synthetic methods of mica corresponding to natural production situations are developed. The crystalsof synthetic mica produced by the melting method become large. Some types of synthetic mica (fluoro-phlogopite, Na tetrasilisic mica, etc) can be produced by the melting method. The greatest use of synthetic mica is cosmetics, especially make-up cosmetics. The high aspect ratio particle with transparent luster is obtained only from fluoro-phlogopite (KMg₃AlSi₃O₁₀F₂). Transparent luster hides a blotch or wrinkles, and it is shown like a bright natural skin.
In melting method, Na tetrasilisic mica (NaMg_2.5Si₄O₁₀F₂) that is swelling mica can be synthesized. Thecrystal of Na tetrasilisic mica is larger than that of natural clay. The gas barrier film that was coated with Na tetrasilisic mica and poly vinyl alcohol was devised for food packing. Na tetrasilisic mica synthesized by melting method has high aspect ratios. The film coated with Na tetrasilisic mica demonstrates a highbarrier nature.
Synthetic mica is used for various applications like pearl mica pigments, filler, paint, and nanocompositematerial besides this.