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Glass composition for glass fiber, glass fiber, and glass fiber-reinforced resin composition using same

A technology of glass composition and resin composition, applied in the field of glass composition for glass fiber, glass fiber and glass fiber reinforced resin composition using the glass fiber, capable of solving problems such as heat generation of resin molded products

Active Publication Date: 2020-01-21
NITTO BOSEIKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally, glass absorbs energy as heat with respect to alternating current, so if the above-mentioned resin molded product is used for the housing or accessories of the above-mentioned electronic equipment, there is a problem that the resin molded product will generate heat

Method used

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  • Glass composition for glass fiber, glass fiber, and glass fiber-reinforced resin composition using same
  • Glass composition for glass fiber, glass fiber, and glass fiber-reinforced resin composition using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0187] Glass raw materials were mixed so that the glass composition after melting and solidification would be the same as that of Example 1 to obtain a glass batch. The glass batch was put into a platinum crucible, kept in an electric furnace at a temperature of 1550° C. for 6 hours, and melted while stirring, thereby obtaining a homogeneous molten glass. Next, the obtained molten glass was poured out on a carbon plate, and it was set as a cullet.

[0188] Next, the obtained cullet is placed in a small cylindrical platinum bushing with a circular nozzle at the bottom of the container, heated to a predetermined temperature and melted, and then discharged from the nozzle by winding at a predetermined speed The molten glass was cooled and solidified while being drawn, thereby producing glass fibers (glass filaments) having a perfect circular cross-section and a fiber diameter of 13 μm.

[0189] As is apparent from Example 11, glass fibers can be formed from the glass composition...

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Abstract

To provide a glass composition for glass fiber which has a low dielectric constant and a low dielectric loss tangent, is prevented from phase separation, and has reduced viscosity at high temperatures. This glass composition for glass fiber contains, with respect to the total amount thereof, 52.0-59.5% by mass of SiO2, 17.5-25.5% by mass of B2O3, 9.0-14.0% by mass of Al2O3, 0.5-6.0% by mass of SrO, 1.0-5.0% by mass of MgO, and 1.0-5.0% by mass of CaO, and contains 0.1-2.5% by mass of F2 and Cl2 combined.

Description

technical field [0001] The present invention relates to a glass composition for glass fiber, a glass fiber composed of the glass composition for glass fiber, and a glass fiber-reinforced resin composition using the glass fiber. Background technique [0002] Glass fiber is produced by melting glass raw material prepared so as to be a glass composition for glass fiber having a desired composition in a melting furnace to obtain molten glass (glass composition for glass fiber). molten material), the molten glass described above is discharged from a container (bushing) having a nozzle plate formed with several tens to thousands of nozzles, and the molten glass is cooled while being stretched by high-speed coiling, and solidified to form fibrous (hereinafter, this operation may be referred to as "spinning"). The bushing is formed of a noble metal such as platinum, for example. [0003] Conventionally, glass fibers have been widely used in various applications in order to increas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/00
CPCC03C13/00C03C3/091C03C3/112C03C13/045C03C3/115C03C3/087C08K7/14C08J5/042C03C3/118C03C2213/00C08J5/043
Inventor 细川贵庸矢部宏幸栗田忠史野中贵史
Owner NITTO BOSEIKI CO LTD
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