IOTA 6153D methyl phenyl silicone resin, mainly used in the manufacture of H grade electrical insulation materials, glass mica belt (plate).

Here high temperature mica plate adopts high temperature resistant white mica or phlogopite raw materials and high temperature silicone resin adhesive by baking suppression of rigid plate insulation materials, has a good electrical insulating performance and high temperature resistant performance, especially suitable for steel, metallurgical and other industries all kinds of industrial electric furnace, power frequency furnace, intermediate frequency furnace, electric arc furnace, such as high temperature insulation, as well as asbestos substitute, Specifically designed for electrothermal mechanical applications with high requirements for the following properties.

Mica plate good high temperature insulation performance, temperature resistance up to 1000℃. Electrical insulation performance of ordinary products voltage breakdown index is as high as 20KV/mm. Good flexural strength and processing performance, the product has high flexural strength and excellent toughness, which can be processed by lathes, milling machines and drilling machines into various abnormity parts without layering.


For the material of high temperature mica plate in the end is artificial mica or natural mica? The differences are as follows:

1. Corrosion resistance
Artificial mica does not react with ordinary acid-base solution, and does not react with water, so there is no layer, no scaling, no rupture, in the long-term high temperature and high pressure water erosion (2-3 years), still can basically maintain the original clarity and transparency. However, natural micA WILL CHANGE COLOR, layer formation, SCALE HANGING, PERMEABILITY and even RUPTURE due to HYDRATION REACTION under LONG-TERM (several months) scouring by high temperature and pressure water.


2. Heat resistance
Because artificial mica does not contain (OH)-, its thermal stability at high temperature is much higher than natural mica. Natural Muscovite starts to lose weight at 200℃. When the temperature is higher than 450℃, it begins to decompose and its thickness expands. When the temperature is higher than 600℃, it loses weight rapidly and almost completely decomposes at 900℃. The decomposition of gold mica starts at 500℃, and the weight loss is significant above 900℃. The specific performance of weightlessness is that the layer gradually rises, changes color and falls off from 200℃. Therefore, the use temperature of natural mica is limited. Artificial mica can be used up to 1100℃, and the thickness is basically unchanged, and it will slowly decompose above 1200℃. The melting or crystallization temperature of artificial mica was (1350±5) ℃.


3. Optical properties
Because artificial mica contains less impurities, its light transmittance is higher than natural mica from ultraviolet to infrared. Natural mica can not pass through the ultraviolet light, but artificial mica can pass through nearly 0.2μm. Natural Muscovite has an obvious absorption peak at 2.75μm (wave number 3636cm-1), but artificial mica does not.


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