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Low density and high strength fiber glass for reinforcement applications

A glass fiber, fiber technology, applied in the field of low density and high strength glass fiber

Inactive Publication Date: 2013-06-12
PPG IND OHIO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been observed that when such warp yarns with resin compatible coatings are simply wound from multiple segment beams onto loom beams, for example by sending the warp yarns through a sizing machine without additional sizing When sizing, heating, and drying (sometimes called "dry sizing") to form a loom beam, the number of loom beam defects, such as end breaks due to rolling and twisting ends the number is too much

Method used

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  • Low density and high strength fiber glass for reinforcement applications
  • Low density and high strength fiber glass for reinforcement applications
  • Low density and high strength fiber glass for reinforcement applications

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0405] Certain properties of glass compositions useful in some embodiments of the present invention are measured under controlled processing conditions using routine testing methods known to those skilled in the art. Some measured properties are listed in Table 1. The properties of standard E-glass and commercially available NE-glass are included for reference. The listed properties of commercially available NE-glasses are from literature. The data in Table 1 show that glass fibers suitable for use in the present invention exhibit improved thermal, chemical and mechanical stability compared to E-glass. Glass fibers suitable for use in the present invention are 30% stronger and 25% stiffer than NE-fibres. The glass fibers of Sample 1 of Table 1 comprised a glass composition comprising the following components, as measured by x-ray fluorescence spectroscopy:

[0406] SiO 2 63.02±0.25% by weight;

[0407] B 2 o 3 9.39±0.15% by weight;

[0408] Al 2 o 3 11.60±...

Embodiment 2

[0422] In this example, the yarn breaking load of yarns formed from glass fiber strands of the present invention ("sample yarns") was compared with that of glass fiber strands formed from conventional 621 glass composition. Yarn ("621 Yarn") was compared. Each yarn is formed from a single glass fiber strand (having approximately 200 filaments, nominally 7 microns in diameter). After formation, the glass fibers are coated with a conventional starch-oil sizing composition. The fiberglass strands were dried and then twisted 1 turn / inch in the z direction to form the yarn, which was then woven into a plain weave style fabric with 60 picks / inch in the warp direction and 60 picks / inch in the weft direction. Has 58 picks / inch.

[0423] The breaking load of the fabric was then measured using ASTM5053. Paper signs were mounted on fabric strips 1 inch wide by 6 inches long and loaded on a universal test frame at a rate of 12 inches per minute until failure. A total of 12 breaking lo...

Embodiment 3

[0425] The tensile and impact properties of the laminates of the present invention were compared to those made from glass fibers containing conventional glass compositions. In this example, a fabric was woven using warp and weft yarns made from glass fiber strands having a glass composition of the present invention ("sample fabric"). A comparative fabric was formed from standard E-glass yarns ("E-glass fabric"). Additional details about the fabric are provided in Table 2:

[0426] Table 2

[0427]

sample fabric

E-glass fabric

fabric style

7781

7781

finishing

1383

497-A

weave pattern

8HS

8HS

warp size

DE79

DE75

Weft size

DE79

DE75

to count

57x61

57x54

base weigh

8.68oz / yd 2

8.73oz / yd 2

thickness

0.008”

0.009”

roll length

60yd

100yd

[0428] The pre-impregnated fabric was then incorporated into the laminate using...

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Abstract

The present invention relates to fiber glass strands, yarns, fabrics, composites, prepregs, laminates, fiber-metal laminates, and other products incorporating glass fibers formed from glass compositions. The glass fibers, in some embodiments, are incorporated into composites that can be used in reinforcement applications. Glass fibers formed from some embodiments of the glass compositions can have certain desirable properties that can include, for example, desirable electrical properties (e.g. low Dk) or desirable mechanical properties (e.g., specific strength).

Description

[0001] Cross-Referenced Related Applications [0002] This application claims priority to US Provisional Patent Application Serial No. 61 / 382738, filed September 14, 2010, the entire disclosure of which is hereby incorporated by reference. This application claims priority to and is a continuation-in-part of U.S. Patent Application No. 13 / 229012 filed September 9, 2011, which is a continuation-in-part of U.S. Patent Application No. 12 / 229012 filed November 5, 2010 A continuation in part of 940764, No. 12 / 940764 is a continuation of US Patent Application No. 11 / 610761 filed on December 14, 2006, and now US Patent No. 7829490 (issued on November 9, 2010), The content of each is hereby incorporated by reference in its entirety. field of invention [0003] The present invention relates to low density and high strength glass fibers, and yarns, fabrics and composites comprising low density and high strength glass fibers suitable for reinforcement applications. Background of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/118C03C13/00B32B17/00C08J5/24C08K7/14C08J5/04
CPCB32B15/092B32B15/20B32B2260/021B32B2262/101C03C3/118C03C13/00C08J5/043C08K3/08C08G2650/40D02G3/18C08K7/14C08J5/244C08L71/00C08L81/02C08L63/00B32B17/00
Inventor J·C·彼得斯J·C·塞拉诺李洪S·J·帕克斯C·A·理查德斯
Owner PPG IND OHIO INC
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