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High performance fiber glass composition with improved specific modulus

A glass composition and a technology for the composition, which can be applied to glass manufacturing equipment, wind turbines in line with the wind direction, and manufacturing tools, etc., can solve problems such as process interruption, loss of transparency of glass, and reduced productivity.

Active Publication Date: 2020-06-02
OCV INTELLECTUAL CAPITAL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fiberizing R-glass at typical 1000 poise viscosities will likely result in glass loss of clarity which causes process interruption and reduced yield

Method used

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  • High performance fiber glass composition with improved specific modulus
  • High performance fiber glass composition with improved specific modulus
  • High performance fiber glass composition with improved specific modulus

Examples

Experimental program
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Embodiment

[0082] Exemplary glass compositions according to the present invention were prepared by mixing the batch components in proportionate amounts to achieve a final glass composition having the oxide weight percents set forth in Tables 1-8 below.

[0083] The raw materials were melted in a platinum crucible in an electrically heated furnace at a temperature of 1,650° C. for 3 hours.

[0084] Fiberization temperature was measured using the rotating cylinder method as described in ASTM C965-96 (2007) entitled "Standard Practice for Measuring Viscosity of Glass Above the Softening Point", the contents of which are incorporated herein by reference. By exposing the glass to a temperature gradient in a platinum alloy boat for 16 hours as described in ASTM C829-81 (2005) entitled "Standard Practices for Measurement of Liquidus Temperature of Glass", the contents of which are incorporated herein by reference. Measure the liquidus temperature. Density is measured by the Archimedes method a...

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Abstract

The present invention relates to a high-performance fiber glass composition with improved specific modulus. The glass fibers formed from the composition of the present invention can be used in applications requiring high rigidity and have a specific modulus between 34 and 40 MJ / kg. Such applications include woven fabrics and aerospace structures used in forming wind turbine blades.

Description

[0001] related application [0002] This application claims priority to U.S. Provisional Application No. 62 / 771,245, filed November 26, 2018, entitled HIGH PERFORMANCE FIBERGLASS COMPOSITION WITH IMPROVED SPECIFIC MODULUS, the entire disclosure of which is incorporated herein by reference. Background technique [0003] Glass fibers are manufactured from various raw materials combined in specific proportions to produce a desired composition (commonly referred to as a "glass batch"). This glass batch can be melted in a melting apparatus and the molten glass drawn into filaments (the resulting filaments are also referred to as continuous glass fibers) through a thimble or perforated plate. A sizing composition containing lubricant, coupling agent, and film-forming binder resin can then be applied to the filaments. After the sizing is applied, the fibers may be gathered into one or more strands and wound into bales, or alternatively, the fibers may be cut and collected while wet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00C03B37/022C08J5/04
CPCC03C13/00C03B37/022C08J5/043C03C3/095C03C3/097C03C3/087C08J5/08C08J2300/22C08J2300/24Y02E10/72C03B37/02C08K7/14F03D1/0675C03C2213/00C03C3/085
Inventor M·L·科温-埃德森
Owner OCV INTELLECTUAL CAPITAL LLC
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