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    High modulus glass fibre composition, and glass fibre and composite material thereof
    1.
    发明授权
    High modulus glass fibre composition, and glass fibre and composite material thereof 有权

    公开(公告)号：US10329189B2

    公开(公告)日：2019-06-25

    申请号：US15739110

    申请日：2016-06-16

    Applicant: JUSHI GROUP CO., LTD.

    Inventor： Yuqiang Zhang ,  Guorong Cao ,  Lin Zhang ,  Wenzhong Xing ,  Guijiang Gu

    IPC: C03C3/095 ,  C03C13/00

    Abstract: A high-modulus glass fiber composition, and a glass fiber and a composite material therefrom. The glass fiber composition comprises the following components in weight percentage: SiO2 55.7 to 58.9%, Al2O3 15 to 19.9%, Y2O3 0.1 to 4.3%, La2O3 less than or equal to 1.5%, CeO2 less than or equal to 1.2%, CaO 6 to 10%, MgO 9.05 to 9.95%, SrO less than or equal to 2%, Li2O+Na2O+K2O less than or equal to 0.99%, Li2O less than or equal to 0.65%, Fe2O3 less than 1%, TiO2 0.1 to 1.5%; wherein, the range of the weight percentage ratio C1=Y2O3/(Y2O3+La2O3+CeO2) is greater than 0.6. The composition can greatly improve the elastic modulus of glass, significantly reduce liquidus temperature and forming temperature of the glass, greatly reduce the crystallization rate of molten glass and bubble amount under the same conditions, and therefore is more suitable for large-scale tank furnace production of high-modulus fiberglass with low bubble amount.

    High performance glass fiber composition, and glass fiber and composite material thereof
    2.
    发明授权
    High performance glass fiber composition, and glass fiber and composite material thereof 有权

    公开(公告)号：US10590027B2

    公开(公告)日：2020-03-17

    申请号：US16081350

    申请日：2016-03-21

    Applicant: JUSHI GROUP CO., LTD.

    Inventor： Yuqiang Zhang ,  Guorong Cao ,  Lin Zhang ,  Wenzhong Xing ,  Guijiang Gu

    IPC: C03C3/095 ,  C03C13/00 ,  C03C3/085 ,  C03C3/087

    Abstract: Provided are a high performance glass fiber composition, and a glass fiber and a composite material thereof. The content, given in weight percentage, of each component of the glass fiber composition is as follows: 52-67% of SiO2, 12-24% of Al2O3, 0.05-4.5% of Sm2O3+Gd2O3, less than 2% of Li2O+Na2O+K2O, 10-24% of CaO+MgO+SrO, less than 16% of CaO, less than 13% of MgO, less than 3% of TiO2, and less than 1.5% of Fe2O3. The composition significantly improves the mechanical properties and the thermal stability of glass, significantly reduces the liquidus temperature and forming temperature of glass, and under equal conditions, significantly reduces the crystallisation rate of glass. The composition is particularly suitable for the tank furnace production of a high performance glass fiber having excellent thermal stability.

    Glass fiber composition, glass fiber and composite material therefrom
    8.
    发明授权
    Glass fiber composition, glass fiber and composite material therefrom 有权

    公开(公告)号：US10351465B2

    公开(公告)日：2019-07-16

    申请号：US15511585

    申请日：2014-12-29

    Applicant: JUSHI GROUP CO., LTD.

    Inventor： Guorong Cao ,  Wenzhong Xing ,  Lin Zhang ,  Guijiang Gu

    IPC: C03C3/087 ,  C03C13/00 ,  C03C3/095

    Abstract: The present invention provides a glass fiber composition, glass fiber and composite material therefrom. The glass fiber composition comprises the following components expressed as percentage by weight: 58-63% SiO2, 13-17% Al2O3, 6-11.8% CaO, 7-11% MgO, 3.05-8% SrO, 0.1-2% Na2O+K2O+Li2O, 0.1-1% Fe2O3, 0-1% CeO2 and 0-2% TiO2, wherein a weight percentage ratio C1=(MgO+SrO)/CaO is greater than 1. Said composition greatly improves the refractive index of glass, significantly shields against harmful rays for humans and further reduces glass crystallization risk and production costs, thereby making it more suitable for large-scale production with refractory-lined furnaces.

    High performance glass fibre composition, and glass fibre and composite material thereof
    10.
    发明授权
    High performance glass fibre composition, and glass fibre and composite material thereof 有权

    公开(公告)号：US10377662B2

    公开(公告)日：2019-08-13

    申请号：US15739081

    申请日：2016-03-21

    Applicant: JUSHI GROUP CO., LTD.

    Inventor： Yuqiang Zhang ,  Guorong Cao ,  Lin Zhang ,  Wenzhong Xing ,  Guijiang Gu

    IPC: C03C13/00 ,  C03C3/095

    Abstract: 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% SiO2, greater than 19% and lower than 25% Al2O3, 0.05-7% Y2O3+La2O3+Gd2O3, not greater than 1% Li2O+Na2O+K2O, 10-24% CaO+MgO+SrO, 1.5-12% CaO, lower than 2% TiO2, lower than 1.5% Fe2O3. 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.

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