What’s the difference between the ceramic fiber and glass fiber?
Ceramic fiber strip, a type of fibrous lightweight refractory, possesses so many advantages as light weight, high temperature resistance, good thermal stability, low thermal conductivity, small specific heat and mechanical shock resistance. Therefore it has been widely applied in machinery, metallurgy, chemical engineering, petroleum, porcelain, glass, electronics, and other industries. As a sort of refractory material, ceramic fiber strip is made out of highly purified refractory fiber, and applied in high temperature and thermal insulation field. Compared with natural cellulosic fiber, the raw material of glass fiber tape has the following features: with circular section and the same diameter, glass fiber can be micro fine. It’s higher in specific gravity and more stable in dimension. As a result, the paper made from it by papermaking gains fairly high tensile strength, and excellent properties of water-fast, oil resistance, acid and alkali resistance, corrosion resistance, thermal stability, low thermal conductivity, sound absorption, etc.
Glass fiber is a kind of inorganic nonmetallic material with great varieties. It has the advantages of good insulation, strong heat resistance, excellent corrosion resistance and high mechanical strength. But brittleness and poor abrasion resistance are its defects. As a category of the glass fiber, glass wool is a kind of manmade inorganic fiber. As a result of fibrosis of the molten glass, cotton shaped material, glass wool, whose chemical composition is glass, is formed. As inorganic fiber, it’s characterized with good shape, small volume density, low thermal conductivity, thermal insulation, sound absorption, corrosion resistance and stable chemical properties. Ceramic fiber blanket is also called alumina silicate fiber blanket. One of its main components is alumina, and alumina is the major component of porcelain, so it’s called ceramic fiber.
Both of them are inorganic nonmetallic material and silicate. They can be used as structural material focusing on mechanical properties and functional material focusing on characteristics of light, electricity, sound and magnet, etc. Their main difference lies in the operating temperature: the glass wool is less than 300℃, while the ceramic fiber can reach up to 1000℃.
