BORON-FREE GLASS FIBER COMPOSITION, AND GLASS FIBER AND COMPOSITE MATERIAL THEREOF

Title:

BORON-FREE GLASS FIBER COMPOSITION, AND GLASS FIBER AND COMPOSITE MATERIAL THEREOF

Document Type and Number:

WIPO Patent Application WO/2017/063247

Kind Code:

A1

Abstract:

A Boron-free glass fiber composition, and a glass fiber and a composite material thereof. The glass fiber composition comprises the following components in percentage by weight: 58% to 60.4% of SiO2, 14% to 16.5% of Al2O3, 14.1% to 16.5% of CaO, 6% to 8.2% of MgO, 0.01% to 0.5% of Li2O, less than 1.15% of Na2O+K2O, K2O being higher than 0.5%, less than 1.5% of TiO2, and less than 1% of Fe2O3, the ratio in percentage by weight C1＝CaO/MgO being greater than 2 and smaller than or equal to 2.4. The composition can remarkably reduce the surface tension of glass, improve the mechanical strength and the chemical resistance stability of the glass fiber, effectively suppress the crystallization tendency of glass, reduce the liquidus temperature of glass, and is particularly suitable for producing high-performance glass fiber having a low bubble rate.

Inventors:

ZHANG LIN (CN)
CAO GUORONG (CN)
XING WENZHONG (CN)
GU GUIJIANG (CN)

Application Number:

PCT/CN2015/094387

Publication Date:

April 20, 2017

Filing Date:

November 12, 2015

Export Citation:

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Assignee:

JUSHI GROUP CO LTD (CN)

International Classes:

C03C13/02; C03C3/087

Foreign References:

CN104743888A	2015-07-01
CN101838110A	2010-09-22

Other References: