Glass fiber, composition for producing the same, and composite material comprising the same
AssigneeJushi Group Co., Ltd.
InventorsLin Zhang, Wenzhong Xing, Guorong Cao, Guijiang Gu
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Abstract
A composition for producing a glass fiber, including the following components with corresponding percentage amounts by weight: SiO2: 57.1-61.4%; Al2O3: 17.1-21%; MgO: 10.1-14.5%; Y2O3: 1.1-4.3%; CaO: <6.5%; Li2O+Na2O+K2O: ≤1%; Li2O: ≤0.75%; TiO2: <1.8%; and Fe2O3: 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 Al2O3 to SiO2 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.
Claims19
A composition for producing a glass fiber, comprising the following components with corresponding percentage amounts by weight:
- SiO2
- 57.1-61.4%;
- Al2O3
- 17.1-21%;
- MgO
- 10.1-14.5%;
- Y2O3
- 1.1-4.3%;
- CaO
- <6.5%;
- Li2O + Na2O + K2O
- ≤1%;
- Li2O
- ≤0.75%;
- TiO2
- <1.8%;
- and
- Fe2O3
- 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 Al2O3/SiO2 is greater than or equal to 0.305, and
- a weight percentage ratio (Al2O3+MgO+Li2O)/Y2O3 is greater than or equal to 7.45.
Dependencies are inferred from the claim text.