Glass fiber, composition for producing the same, and composite material comprising the same
A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: SiO 2 : 57.1-61.4%; Al 2 O 3 : 17.1-21%; MgO: 10.1-14.5%; Y 2 O 3 : 1.1-4.3%; CaO: <6.5%; Li 2 O+Na 2 O+K 2 O: ≤1%; Li 2 O: ≤0.75%; TiO 2 : <1.8%; and Fe 2 O 3 : 0.05-1.2%. The total weight percentage of the above components in the composition is greater than or equal to 98%. The weight percentage ratio of Al 2 O 3 to SiO 2 is greater than or equal to 0.285. The invention also provides a glass fiber produced using the composition and a composite material including the glass fiber.
1. A composition for producing a glass fiber, comprising the following components with corresponding percentage amounts by weight:
SiO 2
57.1-61.4%;
Al 2 O 3
17.1-21%;
MgO
10.1-14.5%;
Y 2 O 3
1.1-4.3%;
CaO
<6.5%;
Li 2 O + Na 2 O + K 2 O
≤1%;
Li 2 O
≤0.75%;
TiO 2
<1.8%; and
Fe 2 O 3
0.05-1.2%;
wherein
a total weight percentage of the above components is greater than or equal to 98%; and
a weight percentage ratio Al 2 O 3 /SiO 2 is greater than or equal to 0.305, and
a weight percentage ratio (Al 2 O 3 +MgO+Li 2 O)/Y 2 O 3 is greater than or equal to 7.45.
2. The composition of claim 1 , comprising 10.3-14 wt. % of MgO.
3. The composition of claim 1 , wherein a weight percentage of MgO is greater than 11% and less than or equal to 13.5%.
4. The composition of claim 1 , comprising 0.05-0.7 wt. % of Li 2 O.
5. The composition of claim 1 , wherein a total weight percentage of Y 2 O 3 2.3-3.9%.
6. The composition of claim 1 , wherein a total weight percentage of Li 2 O+Na 2 O+K 2 O is 0.25%-0.98%.
7. The composition of claim 1 , wherein a total weight percentage of Al 2 O 3 +MgO+Li 2 O is greater than or equal to 28.1%.
8. The composition of claim 1 , further comprising no more than 2 wt. % of CeO 2 , SrO, La 2 O 3 , ZnO, B 2 O 3 , ZrO 2 , or a mixture thereof.
9. The composition of claim 1 , wherein a weight percentage ratio Al 2 O 3 /SiO 2 is 0.305-0.357.
10. The composition of claim 1 , wherein a weight percentage ratio MgO/CaO is greater than or equal to 1.6.
11. The composition of claim 1 , wherein a weight percentage ratio (Y 2 O 3 +MgO)/SiO 2 is greater than or equal to 0.2.
12. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
57.4-61.4%;
Al 2 O 3
17.5-20.5%;
MgO
10.1-14.5%;
Y 2 O 3
2-4.2%;
CaO
≤6.3%;
Li 2 O + Na 2 O + K 2 O
≤1%;
Li 2 O
≤0.75%;
TiO 2
<1.4%; and
Fe 2 O 3
0.05-1%;
wherein
a total weight percentage of the above components is greater than or equal to 98%; and
a weight percentage ratio Al 2 O 3 /SiO 2 is greater than or equal to 0.305.
13. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
58-60.4%
Al 2 O 3
17.5-20.5%
MgO
10.3-14%
Y 2 O 3
2-4%
CaO
2-6%
Li 2 O + Na 2 O + K 2 O
≤1%
Li 2 O
≤0.75%
TiO 2
<1.4%
Fe 2 O 3
0.05-1%;
wherein
a total weight percentage of the above components is greater than or equal to 98%; and
a weight percentage ratio Al 2 O 3 /SiO 2 is greater than or equal to 0.305.
14. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
57.4-61.4%;
Al 2 O 3
17.5-20.5%;
MgO
10.3-14%;
Y 2 O 3
2-4%;
CaO
≤6.3%;
Li 2 O + Na 2 O + K 2 O
≤1%;
Li 2 O
≤0.75%;
TiO 2
<1.4%; and
Fe 2 O 3
0.05-1%;
wherein
a total weight percentage of the above components is greater than or equal to 98%;
a weight percentage ratio Al 2 O 3 /SiO 2 is greater than or equal to 0.305; and
a weight percentage ratio (Al 2 O 3 +MgO+Li 2 O)/Y 2 O 3 is greater than or equal to 7.45.
15. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
58-60.4%;
Al 2 O 3
17.5-20.5%;
MgO
10.5-14%;
Y 2 O 3
2-4%;
CaO
2-6%;
Li 2 O + Na 2 O + K 2 O
≤1%;
Li 2 O
≤0.75%;
TiO 2
<1.4%; and
Fe 2 O 3
0.05-1%;
wherein
a total weight percentage of the above components is greater than or equal to 98%;
a weight percentage ratio Al 2 O 3 /SiO 2 is greater than or equal to 0.305;
a weight percentage ratio (Al 2 O 3 +MgO+Li 2 O)/Y 2 O 3 is greater than or equal to 7.45; and
a total weight percentage of Al 2 O 3 +MgO+Li 2 O is greater than or equal to 28.1%.
16. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
58-60.4%;
Al 2 O 3
17.7-20.1%;
MgO
greater than 11% but not greater than 13.5%;
Y 2 O 3
2-4%;
CaO
2.3-5.8%;
Li 2 O + Na 2 O + K 2 O
≤1%;
Li 2 O
0.05-0.7%;
TiO 2
<1.4%; and
Fe 2 O 3
0.05-1%;
wherein
a total weight percentage of the above components is greater than or equal to 98%;
a weight percentage ratio Al 2 O 3 /SiO 2 is greater than or equal 0.305;
a weight percentage ratio (Al 2 O 3 +MgO+Li 2 O)/Y 2 O 3 is greater than or equal to 7.45; and
a total weight percentage of Al 2 O 3 +MgO+Li 2 O is greater than or equal to 29.1%.
17. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
57.4-61.4%;
Al 2 O 3
17.5-20.5%;
MgO
10.1-14.5%;
Y 2 O 3
2-4.2%;
CaO
≤6.3%;
Li 2 O + Na 2 O + K 2 O
≤1%;
Li 2 O
≤0.75%;
TiO 2
<1.4%;
Fe 2 O 3
0.05-1%;
SrO + CeO 2 + F 2
<2%;
SrO
0-1.7%;
CeO 2
0-0.55%; and
F 2
0-0.5%;
wherein
a weight percentage ratio Al 2 O 3 /SiO 2 is greater than or equal to 0.305; and
a weight percentage ratio (Al 2 O 3 +MgO+Li 2 O)/Y 2 O 3 is greater than or equal to 7.45.
18. A glass fiber, being produced using the composition of claim 1 .
19. A composite material, comprising the glass fiber of claim 18 .