Product Characteristics And Differences Between Synthetic Mica And Natural Mica

Natural mica

Mica is a kind of important nonmetallic mineral, layered silicate minerals, with transparent insulation, heat resistant corrosion resistant, easy to peel and flexible features, a lot of more phyletic and enjoy ice flower PiLian, cellophane, day and laminated paper such as reputation. Natural mica is mostly produced in magmatic rocks, metamorphic rocks and sedimentary rocks. The most valuable mica and gold mica are Muscovite Mica and gold mica. The chemical formula KMg3(AlSi3O10)(OH)2 of gold mica is silver gray, dark brown or other mixed colors. It is also called hydroxyl mica because it contains (OH)-. In addition to natural mica there are Biotite Mica, lithium mica, iron lithium mica, pearl mica.

Synthetic Mica

According to the crystallography theory, the ionic electricity price is equal and the volume is similar. The mica formed by fluorine ion F- and hydroxyl ion (OH)- is called fluorite mica. F, introduced in the form of fluoride, the high temperature melting or solid instead of synthetic mica said fluorine mica system, including fluorine phlogopite KMg3 (AlSi3O10) F2 is easy to grow into a big crystal, the practical value, so the synthesis usually refers to the fluorine phlogopite mica.

Synthetic mica characteristics

1, synthetic mica do not contain hydroxyl (OH), high temperature resistance, good thermal stability than natural mica, use the temperature about 1100 ℃, 1200 ℃ above slow decomposition (fluoride), fluorine phlogopite melting temperature of about 1375 + 5 ℃. Natural mica highest use temperature: 550 ℃ Muscovite Mica, bronze mica 800 ℃ (natural white mica starts to break down under 450 ℃, 900 ℃ was almost completely decomposed; Phlogopite decomposition to the start of the 750 ℃, 750 ℃ above weightlessness significantly), can use high temperature heating or differential thermal analysis to distinguish mica category. 2. The synthetic mica has less pure impurities and good transparency. Except the hardness is slightly higher than that of natural mica, other mechanical properties, electrical insulation properties and vacuum venting properties are better than natural mica. Synthetic mica can replace natural mica completely, it is a new high temperature resistant insulation material with special good performance.

Main applications

Mica transparency, heat resistance, good electrical insulation, acid-proof alkaline, flexibility and stripping, since the middle of the 19th century, as an important kind of insulating materials used in electrical industry, the production of all kinds of instruments and meters window materials, frame materials, dielectric materials and diaphragm material, etc.

Synthetic mica is a new kind of high temperature resistant insulating material, which is widely used in the fields of national defense industry, electric motor and electric appliance, radio electronics and household electric appliance.