Glass fiber composition and glass fiber and composite material thereof
The present invention provides a glass fiber composition, a glass fiber and a composite material therefrom. The glass fiber composition comprises the following components expressed as percentage by weight: 58-64% SiO2, 14-19% Al203, ≧8.8% and <11.8% CaO, 7.5-11% MgO, 0.2-2.7% SrO, 0.1-2% Na2O+K2O, 0.05-0.9% Li2O, 0.05-1% Fe2O3, 0.05-1.1% TiO2 and <0.5% F2, wherein the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.75-1.1, and the range of the weight percentage ratio C2=CaO/MgO is less than 1.4. Said composition can effectively inhibit the crystallization tendency of glass, significantly decrease the liquidus temperature and crystallization degree of glass and also has an outstanding glass refractive index and outstanding modulus.
1. A glass fiber composition, comprising the following components expressed as percentage by weight:
SiO 2
58-64%
Al 2 O 3
14-19%
CaO
≧8.8% and <11.8%
MgO
7.5-11%
SrO
0.2-2.7%
Na 2 O + K 2 O
0.1-2%
Li 2 O
0.05-0.9%
Fe 2 O 3
0.05-1%
TiO 2
0.05-1.1%
F 2
<0.5%
wherein, the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.75-1.1 and the range of the weight percentage ratio C2=CaO/MgO is less than 1.4.
2. The glass fiber composition according to claim 1 , wherein the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3.
3. The glass fiber composition according to claim 1 , wherein the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1.
4. The glass fiber composition according to claim 1 , wherein the content of CaO expressed as percentage by weight is greater than 10.5% and less than 11.8%.
5. The glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
59-62%
Al 2 O 3
14.5-18%
CaO
>10.5% and <11.8%
MgO
8-10.5%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-2%
Li 2 O
0.05-0.9%
Fe 2 O 3
0.05-1%
TiO 2
0.05-1.1%
F 2
<0.5%
wherein, the weight percentage ratio C1=(MgO+SrO)/CaO is 0.75-1.1, and the range of the weight percentage ratio C2=CaO/MgO is less than 1.4.
6. The glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
59-62%
Al 2 O 3
14.5-18%
CaO
>10.5% and <11.8%
MgO
8-10.5%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-2%
Li 2 O
0.05-0.9%
Fe 2 O 3
0.05-1%
TiO 2
0.05-1.1%
F 2
<0.5%
wherein, the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1, and the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3.
7. The glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
59-61.5%
Al 2 O 3
14.5-16.5%
CaO
10.6-11.7%
MgO
8-10%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-1%
Li 2 O
0.05-0.7%
Fe 2 O 3
0.05-0.7%
TiO 2
0.05-0.8%
F 2
<0.5%
wherein, the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1, and the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3.
8. A glass fiber being produced from the glass fiber compositions described in claim 1 .
9. The glass fiber of claim 8 , wherein the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3, and the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1.
10. The glass fiber of claim 8 , wherein the content of CaO expressed as percentage by weight is greater than 10.5% and less than 11.8%.
11. The glass fiber of claim 8 , comprising the following components expressed as percentage by weight:
SiO 2
59-62%
Al 2 O 3
14.5-18%
CaO
>10.5% and <11.8%
MgO
8-10.5%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-2%
Li 2 O
0.05-0.9%
Fe 2 O 3
0.05-1%
TiO 2
0.05-1.1%
F 2
<0.5%
wherein, the weight percentage ratio C1=(MgO+SrO)/CaO is 0.75-1.1, and the range of the weight percentage ratio C2=CaO/MgO is less than 1.4.
12. The glass fiber of claim 8 , comprising the following components expressed as percentage by weight:
SiO 2
59-62%
Al 2 O 3
14.5-18%
CaO
>10.5% and <11.8%
MgO
8-10.5%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-2%
Li 2 O
0.05-0.9%
Fe 2 O 3
0.05-1%
TiO 2
0.05-1.1%
F 2
<0.5%
wherein, the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1, and the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3.
13. The glass fiber of claim 8 , comprising the following components expressed as percentage by weight:
SiO 2
59-61.5%
Al 2 O 3
14.5-16.5%
CaO
10.6-11.7%
MgO
8-10%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-1%
Li 2 O
0.05-0.7%
Fe 2 O 3
0.05-0.7%
TiO 2
0.05-0.8%
F 2
<0.5%
wherein, the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1, and the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3.
14. A composite material incorporating the glass fiber described in claim 8 .
15. The composite material of claim 14 , wherein the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3, and the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1.
16. The composite material according to claim 14 , wherein the content of CaO expressed as percentage by weight is greater than 10.5% and less than 11.8%.
17. The composite material according to claim 14 , comprising the following components expressed as percentage by weight:
SiO 2
>59-62%
Al 2 O 3
14.5-18%
CaO
>10.5% and <11.8%
MgO
8-10.5%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-2%
Li 2 O
0.05-0.9%
Fe 2 O 3
0.05-1%
TiO 2
0.05-1.1%
F 2
<0.5%
wherein, the weight percentage ratio C1=(MgO+SrO)/CaO is 0.75-1.1, and the range of the weight percentage ratio C2=CaO/MgO is less than 1.4.
18. The composite material according to claim 14 , comprising the following components expressed as percentage by weight:
SiO 2
59-62%
Al 2 O 3
14.5-18%
CaO
>10.5% and <11.8%
MgO
8-10.5%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-2%
Li 2 O
0.05-0.9%
Fe 2 O 3
0.05-1%
TiO 2
0.05-1.1%
F 2
<0.5%
wherein, the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1, and the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3.
19. The composite material according to claim 14 , comprising the following components expressed as percentage by weight:
SiO 2
59-61.5%
Al 2 O 3
14.5-16.5%
CaO
10.6-11.7%
MgO
8-10%
SrO
0.5-2%
Na 2 O + K 2 O
0.1-1%
Li 2 O
0.05-0.7%
Fe 2 O 3
0.05-0.7%
TiO 2
0.05-0.8%
F 2
<0.5%
wherein, the range of the weight percentage ratio C1=(MgO+SrO)/CaO is 0.8-1, and the range of the weight percentage ratio C2=CaO/MgO is greater than 1 and less than 1.3.