| 摘要 |
The invention relates to a glass fiber, especially a continuous glass fiber, exhibiting improved thermal behavior. According to the invention, the glass fiber consists of SiO2 56.0 62.0 %, A12O3 11.0 -15,0 %, CaO 20.0 - 24,5 %, TiO2 2.0 3.2 %, MgO 0.2 0.4 %, Na2O 0.05 0.2 %, K2O 0 0.25 %, Fe2O3 0.11 0.3 %, SO3 0.01 0.05 %. The retraction value of the fiber is less than 20 % at 800 ~C and/or less than 80 % at 850~. The inventive fiber is produced according to a method wherien the difference between the glass melt liquidus temperature and the fiber formation temperature is the same as or greater than 95 ~C. The fiber can be used as filling material in sound absorbers for waste gases, in the production of shaped bodies and in the production of nets, fabrics or knitted fabrics.
|
