High performance glass fibre composition, and glass fibre 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: 53-64% SiO 2 , greater than 19% and lower than 25% Al 2 O 3 , 0.05-7% Y 2 O 3 +La 2 O 3 +Gd 2 O 3 , not greater than 1% Li 2 O+Na 2 O+K 2 O, 10-24% CaO+MgO+SrO, 1.5-12% CaO, lower than 2% TiO 2 , lower than 1.5% Fe 2 O 3 . Said composition can not only significantly improve the elastic modulus and chemical stability of the glass, but also overcome the technical problems in the manufacture of traditional high-performance glasses including high risk of crystallization, fining difficulty of molten glass and production efficiency difficulty with refractory-lined furnaces, significantly reduce the liquidus and forming temperatures and greatly reduce the crystallization rate under the same conditions, thus making it particularly suitable for production of high-performance glass fiber with excellent chemical stability in refractory-lined furnaces.
1. A high-performance glass fiber composition, comprising the following components expressed as percentage by weight:
SiO 2
53-64%
Al 2 O 3
>19% and <25%
RE 2 O 3 = Y 2 O 3 + La 2 O 3 + Gd 2 O 3
0.05-7%
R 2 O = Li 2 O + Na 2 O + K 2 O
0.05-1%
CaO + MgO + SrO
10-24%
CaO
1.5-12%
TiO 2
<2%
Fe 2 O 3
<1.5%
wherein, the range of the weight percentage ratio C1=RE 2 O 3 /R 2 O is greater than 0.5.
2. The high-performance fiber glass composition according to claim 1 , wherein the content range of MgO by weight percentage is 8.1-12%.
3. The high-performance glass fiber composition according to claim 1 , wherein the content range of CaO by weight percentage is 5-10%.
4. The high-performance glass fiber composition according to claim 1 , wherein the content range of SrO by weight percentage is 0.1-2%.
5. The high-performance glass fiber composition according to claim 1 , comprising CeO 2 with the weight percentage of 0-1%.
6. The high-performance glass fiber composition according to claim 1 , wherein the content range of R 2 O═Li 2 O+Na 2 O+K 2 O by weight percentage is greater than or equal to 0.05% and lower than 0.97%.
7. The high-performance glass fiber composition according to claim 1 , wherein the content range of SiO 2 +Al 2 O 3 by weight percentage is lower than 80.4%.
8. The high-performance glass fiber composition according to claim 1 , wherein the range of the weight percentage ratio C2=Al 2 O 3 /MgO is greater than 1.8.
9. The high-performance glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
≥53% and <63%
Al 2 O 3
>19% and <25%
SiO 2 + Al 2 O 3
<82%
RE 2 O 3 = Y 2 O 3 + La 2 O 3 + Gd 2 O 3
0.05-7%
R 2 O = Li 2 O + Na 2 O + K 2 O
0.05-1%
Li 2 O
0.05-0.85%
CaO + MgO + SrO
10-24%
CaO
1.5-12%
TiO 2
<2%
Fe 2 O 3
<1.5%
wherein, the range of the weight percentage ratio C1=RE 2 O 3 /R 2 O is greater than 0.5.
10. The high-performance glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
≥53% and <63%
Al 2 O 3
>19% and <25%
SiO 2 + Al 2 O 3
<82%
RE 2 O 3 = Y 2 O 3 + La 2 O 3 + Gd 2 O 3
0.5-6%
R 2 O = Li 2 O + Na 2 O + K 2 O
0.05-1%
Li 2 O
≥0.05% and <0.55%
CaO + MgO + SrO
10-24%
CaO
1.5-12%
TiO 2
<2%
Fe 2 O 3
<1.5%
wherein, the range of the weight percentage ratio C1=RE 2 O 3 /R 2 O is greater than 0.5, and the range of the weight percentage ratio C2=Al 2 O 3 /MgO is greater than 1.8.
11. The high-performance glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
≥53% and <63%
Al 2 O 3
>19% and <25%
SiO 2 + Al 2 O 3
<82%
RE 2 O 3 = Y 2 O 3 + La 2 O 3 + Gd 2 O 3
0.5-6%
R 2 O = Li 2 O + Na 2 O + K 2 O
≥0.05% and <0.97%
Li 2 O
0.05-0.85%
CaO + MgO + SrO
10-24%
CaO
1.5-12%
TiO 2
<2%
Fe 2 O 3
<1.5%
wherein, the range of the weight percentage ratio C1=RE 2 O 3 /R 2 O is greater than 0.5, and the range of the weight percentage ratio C2=Al 2 O 3 /MgO is greater than 1.95.
12. The high-performance glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
≥53% and <63%
Al 2 O 3
>19% and <25%
SiO 2 + Al 2 O 3
<82%
RE 2 O 3 = Y 2 O 3 + La 2 O 3 + Gd 2 O 3
0.5-7%
Y 2 O 3
0.5-5%
R 2 O = Li 2 O + Na 2 O + K 2 O
≥0.05% and <0.97%
Li 2 O
0.05-0.85%
CaO + MgO + SrO
10-24%
CaO
1.5-12%
TiO 2
<2%
Fe 2 O 3
<1.5%
wherein, the range of the weight percentage ratio C1=RE 2 O 3 /R 2 O is greater than 0.5, and the range of the weight percentage ratio C2=Al 2 O 3 /MgO is greater than 1.8.
13. The high-performance glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
≥53% and <61.4%
Al 2 O 3
>19% and <25%
SiO 2 + Al 2 O 3
<80.4%
RE 2 O 3 = Y 2 O 3 + La 2 O 3 + Gd 2 O 3
0.05-7%
R 2 O = Li 2 O + Na 2 O + K 2 O
≥0.05% and <0.97%
Li 2 O
0.05-0.85%
CaO + MgO + SrO
10-24%
CaO
1.5-12%
TiO 2
<2%
Fe 2 O 3
<1.5%
wherein, the range of the weight percentage ratio C1=RE 2 O 3 /R 2 O is greater than 0.5.
14. The high-performance glass fiber composition according to claim 1 , comprising the following components expressed as percentage by weight:
SiO 2
≥53% and <61.4%
Al 2 O 3
>19% and ≤23%
SiO 2 + Al 2 O 3
<80.4%
RE 2 O 3 = Y 2 O 3 + La 2 O 3 + Gd 2 O 3
0.5-6%
R 2 O = Li 2 O + Na 2 O + K 2 O
0.05-1%
Li 2 O
0.05-0.85%
CaO + MgO + SrO
10-24%
CaO
1.5-12%
TiO 2
<2%
Fe 2 O 3
<1.5%
wherein, the range of the weight percentage ratio C1=RE 2 O 3 /R 2 O is greater than 1, and the range of the weight percentage ratio C2=Al 2 O 3 /MgO is greater than 1.95.
15. A glass fiber being produced from the glass fiber compositions described in claim 1 .
16. A composite material incorporating the glass fiber described in claim 15 .