High modulus glass fibre composition, and glass fibre and composite material thereof
US10294142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2016 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Mar 7, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2213/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A high modulus glass fiber composition, and a glass fiber and a composite material thereof. The glass fiber composition comprises the following components expressed as percentage by weight: 53-68% of SiO2, 13-24.5% of Al2O3, 0.1-8% of Y2O3+La2O3, less than 1.8% of La2O3, 10-23% of CaO+MgO+SrO, less than 2% of Li2O+Na2O+K2O, and less than 1.5% of Fe2O3, and the range of a weight percentage ratio C1 is more than 0.5, wherein C1=Y2O3/(Y2O3+La2O3). The composition significantly increases the elastic modulus of glass, significantly reduces the liquidus temperature and the forming temperature of glass, and under equal conditions, significantly reduces the crystallization rate and the bubble rate of glass. The composition effectively improves the material properties of glass, and is particularly suitable for the tank furnace production of a high modulus glass fiber having a low bubble rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.