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Glass composition, glass fibers, forming method thereof and reinforced composite product

A glass composition and fiberization technology, applied in the field of glass fiber, can solve the problems of shortened service life of forming technology

Pending Publication Date: 2021-07-02
OCV INTELLECTUAL CAPITAL LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Platinum volatilizes faster at higher temperatures and the life of the forming technique is shortened

Method used

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  • Glass composition, glass fibers, forming method thereof and reinforced composite product
  • Glass composition, glass fibers, forming method thereof and reinforced composite product
  • Glass composition, glass fibers, forming method thereof and reinforced composite product

Examples

Experimental program
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Effect test

Embodiment

[0084] Exemplary glass compositions of the present invention were prepared by mixing the batch components in proportionate amounts to achieve final glass compositions having the oxide weight percents shown in Tables 1-2 below.

[0085] The starting material was melted in a platinum crucible in an electrically heated furnace at 1650°C for 3 hours.

[0086]Fiberization temperature is measured using the rotating cylinder method described in ASTM C965-96 (2007) entitled "Standard Practice for Measuring Viscosity of Glass Above the Softening Point", which reads Incorporated herein by reference. The liquidus temperature is measured by exposing the glass in a platinum alloy boat to a temperature gradient for 16 hours as described in ASTM C829 entitled "Standard Practices for Measurement of Liquidus Temperature of Glass," -81 (2005), the contents of which are incorporated herein by reference. Density is measured by the Archimedes method as detailed in ASTM C693-93 (2008) entitled "S...

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PUM

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Abstract

The invention discloses the field of glass fibers, especially relating to a glass composition, glass fibers, a forming method thereof and a reinforced composite product. The glass composition is provided that includes about 57.0 to 62.0 % by weight SiO2, about 20.0 to 25.0 % by weight Al2O3, about 8.0 to 12.5 % by weight MgO, about 7 to 9.0 % by weight CaO, about 0.4 to 1.0 % by weight Li2O, 0.0 to about 1.0 % by weight Na2O, about 0 to 0.5 % by weight K2O; and 0.2 to about 1.5% by weight TiO2. The glass composition of the present invention has a sufficiently low fiberization temperature and at the same time provides a moderate but not too high modulus of elasticity, and can be used to form woven fabrics for wind blades and aerospace structures.

Description

technical field [0001] The present invention relates to the field of glass fibers. In particular, the present invention relates to glass compositions, glass fibers formed from the glass compositions, methods of forming continuous glass fibers, and reinforced composite articles. Background technique [0002] Glass fibers are manufactured from various raw materials combined in specific proportions to produce the desired composition, often referred to as "glass batches". The glass batch can be melted in a melting apparatus, and the molten glass is drawn through a bushing or orifice plate into filaments (the resulting filaments are also called continuous glass fibers). A sizing composition containing lubricant, coupling agent, and film-forming binder resin can then be applied to the filaments. After the size is applied, the fibers can be gathered into one or more tows and wound into bales, or alternatively, the fibers can be cut and collected while wet. The collected chopped ...

Claims

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Application Information

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IPC IPC(8): C03C13/00C03B37/022C08J5/04
CPCC03C13/00C03B37/022C08J5/043C03C3/087C03C2213/00C08J5/08C03B37/02F03D1/0675F05D2300/603
Inventor M·L·科尔文-爱迪生
Owner OCV INTELLECTUAL CAPITAL LLC