| 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 SiO<SUB>2 </SUB>56.0 62.0%, Al<SUB>2</SUB>O<SUB>3 </SUB>11.0-15.0%, CaO 20.0-24.5%, TiO<SUB>2 </SUB>2.0 3.2%, MgO 0.2 0.4%, Na<SUB>2</SUB>O 0.05 0.2%, K<SUB>2</SUB>O 0 0.25%, Fe<SUB>2</SUB>O<SUB>3 </SUB>0.11 0.3%, SO<SUB>3 </SUB>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 wherein the difference between the glass melt liquidus temperature and the fiber formation temperature is the same as or great 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.
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