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Highly temperature-resistant and chemically resistant glass and glass fiber having improved uc light transmission and the use thereof

A chemically resistant, fiberglass technology used in the field of glass and fiberglass to solve problems such as unsatisfactory fiber transparency

Inactive Publication Date: 2011-07-13
G・比格尔
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the clarity of the fiber is not satisfactory in some applications

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0040] Glass is produced in laboratory glass melting equipment, and its composition analysis is as follows (expressed in weight percent):

[0041] SiO 2 : 60.7%, Al 2 o 3 : 14.0%, CaO: 23.4%, MgO: 0.4%, Na 2 O+K 2 O: 0.75%, TiO 2 : 0.4%, Fe 2 o 3 : 0.3%, Cr 2 o 3 : 0.015%.

[0042]At a temperature of 1291°C, the viscosity is 10 3 Poise, the limiting liquidus temperature is 1200°C, and the difference between the limiting liquidus temperature and the fiber formation temperature (ΔT) is 91°C.

[0043] The above-mentioned glasses were drawn into fibers and combined into rovings by laboratory equipment in which a crucible including a hole nozzle and made of a platinum-rhodium alloy was installed. The glass is heated to a deformation temperature greater than 1290°C, and the glass fibers are stretched after holding for 30 minutes for each 10°C increase in temperature. The temperature range of fiber drawing is 1290°C-1360°C. This means that the above composition can ensur...

example 2

[0047] The fibers of Example 1 and 1140 type photocurable polyester resin were processed into a laminate with a board thickness of 8 mm. The optically clear laminate cured within 5 minutes under the irradiation of a UV light source.

example 3

[0049] Glass was made according to Example 1, containing the following composition: 60.2 SiO 2 , 13.83 Al 2 o 3 , 23.5 CaO, 0.31 MgO, 0.18 Na 2 O, 0.54K 2 O, 1.2 TiO 2 , 0.25 Fe 2 o 3 and 0.03 Ca 2 o 3 .

[0050] The limiting liquidus temperature is 1183°C, and ΔT is 100°C. The temperature range of fiber drawing is 1270°C-1350°C. The softening temperature of the stretched continuous glass fiber was 922°C.

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Abstract

The invention relates to a highly temperature-resistant and chemically resistant glass or glass fiber having improved UV light transmission and the use thereof in UV-curable composites. The glass / glass fiber according to the invention has a transition temperature greater than 920 DEG C, a light transmission of 80-92%, and is made of 58-62 % SiO2, 11.0-15.5 % AI2O3, 20-25 % CaO, 0.1-0.8 % MgO, 0.04-1.2 % Na2O, 0.1-1.2 K2O, 0.2-1.8 % TiO2, 0.05-0.5 % Fe2O3 und 0.002-0.085 Cr2O3.

Description

technical field [0001] The present invention relates to a high temperature and chemical resistant glass and glass fiber with improved UV light transmission and its use in UV curable composites. Background technique [0002] According to the patent US-A-4026715, the known boron and fluoride-free glass composition contains 54.5%-60% SiO 2 , 9%-14.5% Al 2 o 3 , 17%-24% CaO, 2%-4% TiO 2 , 1.5%-4% MgO and 1%-6% RO (R=Zn, Sr, Ba) and no more than 3% Na 2 O+K 2 O+Li 2 O, very suitable for drawing into fibers, and has the properties of E glass. However, the chemical resistance of these fibers is not satisfactory. [0003] Known fibers with good temperature stability and chemical resistance according to patent EP-B-0832046 containing 59%-62% SiO 2 , 12%-15% Al 2 o 3 , 20%-24% CaO, 1%-4% MgO, 0.1%-2% Na 2 O+K 2 O, 0-0.9% TiO 2 and 0-0.5% Fe 2 o 3 . However, its temperature stability is not as satisfactory after repeated use. [0004] Patent WO03 / 050049 describes a con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/078C03C3/087C03C4/00C03C13/00
CPCC03C13/00C03C4/085C03C4/0085C03C3/087Y10T428/31786
Inventor G·比格尔
Owner G・比格尔