GLASS FIBER COMPOSITION AND GLASS FIBER AND COMPOSITE MATERIAL THEREOF

A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: SiO 2 : 57.4-60.9%; Al 2 O 3 : greater than 17% and less than or equal to 19.8%; MgO: greater than 9% and less than or equal to 12.8%; CaO: 6.4-11.8%; SrO: 0-1.6%; Na 2 O+K...

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1. Verfasser:	CAO, Guorong
Format:	Patent
Sprache:	eng ; hun
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Zusammenfassung:	A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: SiO 2 : 57.4-60.9%; Al 2 O 3 : greater than 17% and less than or equal to 19.8%; MgO: greater than 9% and less than or equal to 12.8%; CaO: 6.4-11.8%; SrO: 0-1.6%; Na 2 O+K 2 O: 0.1-1.1%; Fe 2 O 3 : 0.05-1%; TiO 2: lower than 0.8%; and SiO 2 +Al 2 O 3 : lower than or equal to 79.4%. The total weight percentage of the above components in the composition is greater than 99%. The weight percentage ratio of Al 2 O 3 +MgO to SiO 2 is between 0.43 and 0.56, and the weight percentage ratio of CaO+MgO to SiO 2 +Al 2 O 3 is greater than 0.205. The composition can significantly increase the glass modulus, effectively reduce the glass crystallization rate, secure a desirable temperature range (T) for fiber formation and enhance the refinement of molten glass, thus making it particularly suitable for high performance glass fiber production with refractory-lined furnaces.