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 the corresponding percentage amounts by weight: SiO 2 : 58-62%; Al 2 O 3 : 14-18%; CaO+MgO: 20-24.5%; CaO: greater than 14%; Li 2 O: 0.01-0.5%; Na 2 O+K 2 O: less than 2%; TiO 2 : less than 3.5%; Fe 2 O 3 : less than 1%; and F 2 : less than 1%. The weight percentage ratio of CaO/MgO is greater than 2 and less than or equal to 2.6; and the weight percentage ratio SiO 2 /CaO is between 3.3 and 4.3. 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
58-62%;
Al 2 O 3
14-18%;
CaO + MgO
20-24.5%;
CaO
greater than 14%;
Li 2 O
0.01-0.5%;
Na 2 O + K 2 O
less than 2%;
TiO 2
less than 3.5%;
Fe 2 O 3
greater than or equal to 0.41% and less than 1%; and
F 2
greater than or equal to 0.05% and less than 1%;
wherein
a weight percentage ratio of CaO/MgO is greater than 2 and less than or equal to 2.6; and
a weight percentage ratio SiO 2 /CaO is 3.3-4.3.
2. The composition of claim 1 , comprising greater than or equal to 0.05% and less than 0.3% by weight of F 2 .
3. The composition of claim 1 , comprising greater than or equal to 0.01% and less than 0.1% by weight of Li 2 O.
4. The composition of claim 1 , wherein the weight percentage ratio SiO 2 /CaO is between 3.4-4.2.
5. The composition of claim 1 , comprising greater than 2% and less than 3.5% by weight of Ti 2 O.
6. The composition of claim 1 , further comprising greater than 0% and less than 0.1% by weight of B 2 O 3 .
7. The composition of claim 6 , comprising greater than or equal to 0.05% and less than 0.3% by weight of F 2 .
8. The composition of claim 6 , comprising greater than or equal to 0.01% and less than 0.1% by weight of Li 2 O.
9. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
58.5-61%;
Al 2 O 3
14.5-17%;
CaO + MgO
20-24.5%;
CaO
greater than 14%;
Li 2 O
0.01-0.5%;
Na 2 O + K 2 O
less than 2%;
TiO 2
less than 3.5%;
Fe 2 O 3
greater than or equal to 0.41% and less than 1%; and
F 2
greater than or equal to 0.05% and less than 1%;
wherein
the weight percentage ratio of CaO/MgO is greater than 2 and less than or equal to 2.4; and
a weight percentage ratio SiO 2 /CaO is 3.4-4.2.
10. The composition of claim 1 , comprising the following components with corresponding percentage amounts by weight:
SiO 2
58.5-60.4%;
Al 2 O 3
14.5-16.5%;
CaO + MgO
20-24.5%;
CaO
greater than 14%;
Li 2 O
0.01-0.5%;
Na 2 O + K 2 O
less than 2%;
TiO 2
less than 3.5%;
Fe 2 O 3
greater than or equal to 0.41% and less than 1%;
F 2
greater than or equal to 0.05% and less than 1%; and
B 2 O 3
greater than 0% and less than 0.1%;
wherein
the weight percentage ratio of CaO/MgO is greater than 2 and less than or equal to 2.4; and
a weight percentage ratio SiO 2 /CaO is 3.5-4.0.
11. The composition of claim 10 , comprising greater than 2% and less than 3.5% by weight of Ti 2 O.
12. A glass fiber, being produced using the composition of claim 1 .
13. The fiber of claim 12 , wherein the composition further comprises greater than 0% and less than 0.1% by weight of B 2 O 3 .
14. The fiber of claim 12 , wherein the composition comprises greater than 2% and less than 3.5% by weight of Ti 2 O.
15. The fiber of claim 12 , wherein the composition comprises greater than or equal to 0.05% and less than 0.3% by weight of F 2 , and greater than or equal to 0.01% and less than 0.1% by weight of Li 2 O; and a weight percentage ratio SiO 2 /CaO is 3.4-4.2.
16. The fiber of claim 12 , wherein
the composition comprises the following components with corresponding percentage amounts by weight:
SiO 2
58.5-60.4%;
Al 2 O 3
14.5-16.5%;
CaO + MgO
20-24.5%;
CaO
greater than 14%;
Li 2 O
0.01-0.5%;
Na 2 O + K 2 O
less than 2%;
TiO 2
less than 3.5%;
Fe 2 O 3
greater than or equal to 0.41% and less than 1%;
F 2
greater than or equal to 0.05% and less than 1%; and
B 2 O 3
greater than 0% and less than 0.1%;
the weight percentage ratio of CaO/MgO is greater than 2 and less than or equal to 2.4; and
a weight percentage ratio SiO 2 /CaO is 3.5-4.0.
17. A composite material, comprising the glass fiber of claim 12 .
18. The material of claim 17 , wherein the composition of the glass fiber further comprises greater than 0% and less than 0.1% by weight of B 2 O 3 .
19. The material of claim 17 , wherein the composition of the glass fiber comprises greater than or equal to 0.05% and less than 0.3% by weight of F 2 , and greater than or equal to 0.01% and less than 0.1% by weight of Li 2 O; and a weight percentage ratio SiO 2 /CaO is 3.4-4.2.
20. The material of claim 17 , wherein
the composition of the glass fiber comprises the following components with corresponding percentage amounts by weight:
SiO 2
58.5-60.4%;
Al 2 O 3
14.5-16.5%;
CaO + MgO
20-24.5%;
CaO
greater than 14%;
Li 2 O
0.01-0.5%;
Na 2 O + K 2 O
less than 2%;
TiO 2
less than 3.5%;
Fe 2 O 3
greater than or equal to 0.41% and less than 1%;
F 2
greater than or equal to 0.05% and less than 1%; and
B 2 O 3
greater than 0% and less than 0.1%;
the weight percentage ratio of CaO/MgO is greater than 2 and less than or equal to 2.4; and
a weight percentage ratio SiO 2 /CaO is 3.5-4.0.