Glass compositions and fibers made therefrom
Some embodiments of the present invention provide fiberizable glass compositions formed from batch compositions comprising amounts of one or more glassy minerals, including perlite and/or pumice. Some embodiments of the present invention related to glass fibers formed from such batch compositions, and composites and other materials incorporating such glass fibers.
1. A plurality of glass fibers, wherein each glass fiber comprises:
53 to less than 62 weight percent SiO 2 ;
8-12 weight percent Al 2 O 3 ;
0-3 weight percent ZnO;
greater than 0 to 3 weight percent TiO 2 ;
8.5-18 weight percent alkali metal oxide (R 2 O) component;
a metal oxide (RO) component selected from the group consisting of MgO, CaO, SrO, BaO, and ZnO, wherein the metal oxide component is present in an amount to provide a mass ratio of R 2 O/RO ranging from about 0.28 to about 1.7; and
less than 1 weight percent of Fe 2 O 3 .
2. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of less than about 105 millimeters.
3. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of less than about 13 millimeters.
4. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of greater than about three millimeters.
5. The plurality of glass fibers of claim 1 , wherein the glass fibers have a length of greater than about fifty millimeters.
6. A fiber glass strand comprising the plurality of glass fibers of claim 1 .
7. A roving comprising the plurality of glass fibers of claim 1 .
8. A yarn comprising the plurality of glass fibers of claim 1 .
9. A woven fabric comprising the plurality of glass fibers of claim 1 .
10. A non-woven fabric comprising the plurality of glass fibers of claim 1 .
11. The plurality of glass fibers of claim 1 , wherein each glass fiber comprises 0-3 weight percent MnO 2 .
12. A polymeric composite comprising:
a polymeric material; and
the plurality of glass fibers of claim 1 .
13. The polymeric composite of claim 12 , wherein the plurality of glass fibers have a length of less than about 105 millimeters.
14. The polymeric composite of claim 12 , wherein the plurality of glass fibers have a length of less than about 13 millimeters.
15. The polymeric composite of claim 12 , wherein the plurality of glass fibers have a length of greater than about fifty microns.
16. The polymeric composite of claim 12 , wherein the plurality of glass fibers have a length of greater than about fifty millimeters.
17. The polymeric composite of claim 12 , wherein the plurality of glass fibers are in the form of a non-woven fabric.
18. The polymeric composite of claim 12 , wherein the plurality of glass fibers are in the form of a woven fabric.
19. The polymeric composite of claim 12 , wherein the polymeric material comprises a thermoplastic polymer.
20. The polymeric composite of claim 12 , wherein the polymeric material comprises a thermosetting polymer.
21. A roofing product comprising the plurality of glass fibers of claim 1 .
22. A plurality of glass fibers, wherein each glass fiber comprises:
53-64 weight percent SiO 2 ;
greater than 10 to 14 weight percent Al 2 O 3 ;
0-3 weight percent ZnO;
greater than 0 to 3 weight percent TiO 2 ;
10-18 weight percent alkali metal oxide (R 2 O) component;
a metal oxide (RO) component selected from the group consisting of MgO, CaO, SrO, BaO, and ZnO, wherein the metal oxide component is present in an amount to provide a mass ratio of R 2 O/RO ranging from about 0.38 to about 1.7; and
less than 1 weight percent of Fe 2 O 3 .