Stone cotton why fire-resistant?
Asbestos is the general term for 6 kinds of natural fiber minerals for commercial use. The term asbestos is not a mineral, but a commercial term. It refers to mineral products with high tensile strength, high flexibility, chemical resistance and thermal erosion, electrical insulation, and spinnability. Asbestos consists of a fiber bundle, consisting of very long, very thin fibers that can be separated from each other. Asbestos can be divided into serpentine asbestos (chrysotile) and amphibole asbestos two categories. Asbestos very early for weaving, Zhou Dai has been able to China fabric with asbestos fiber production, because of contamination after the fire is white, it is called alkyl or fire Huan fire cloth cloth. Asbestos is of high fire resistance, electrical insulation and thermal insulation. It is an important fireproof, insulating and heat insulating material. Present asbestos products or asbestos containing products are nearly 3000 species, mainly used for mechanical transmission, braking and insulation, fireproof, heat insulation, anti-corrosion, insulation, insulation, which is more important is the manufacturing department of automobile, chemical industry, electrical equipment, construction industry etc..
Because the main material of asbestos is silicon compounds, generally fire-resistant, similar to glass
Asbestos belongs to silicate minerals, chemical composition of Mg6[Si4O10][OH]8, containing Magnesium Oxide, aluminum, potassium, iron, silicon and other ingredients. Most are white and gray, brown, and green. Fibrous aggregate. Silky luster. The hardness of 2.53, proportion of 2.22.7. With fire resistance and alkali resistance, but soluble in hydrochloric acid. Rich flexibility. Asbestos can be divided into amphibole asbestos and snake stone, asbestos, asbestos two categories. Any silicate mineral that can be divided into fibers and has a certain refractoriness and insulation can be called asbestos. Asbestos looks like hemp and has a silky sheen on its surface. It can be used for twisting ropes and weaving cloth. As early as 2000 years ago, our country began to use asbestos weaving. Chinese ancient books called "amianthus" or "Shi Ma", woven with asbestos cloth called "put on this Huan fire cloth, cloth clothes really can be" into the fire burning".
