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JP-7857457-B1 - Glass fiber yarn and method for manufacturing the same

JP7857457B1JP 7857457 B1JP7857457 B1JP 7857457B1JP-7857457-B1

Abstract

[Problem] The present invention provides glass fiber yarn and a method for producing the same. [Solution] The method for producing the glass fiber yarn includes a coating step, a sintering step, a mixing step, and a drawing step. In the coating step, zirconium oxide powder is coated onto the surface of a plurality of inorganic particles to form a plurality of modified inorganic particles. In the sintering step, the modified inorganic particles are sintered in a nitrogen atmosphere under temperature conditions of 400°C to 1000°C. In the mixing step, the sintered plurality of modified inorganic particles are mixed into a molten glass raw material. In the drawing step, glass fiber yarn is formed by drawing the glass raw material mixed with the plurality of modified inorganic particles. [Selection Diagram] Figure 1

Inventors

  • 袁敬堯
  • 鄭維昇
  • 蘇珈臻

Assignees

  • 南亞塑膠工業股▲分▼有限公司

Dates

Publication Date
20260512
Application Date
20250217
Priority Date
20241219

Claims (14)

  1. A coating step involves coating the surface of multiple inorganic particles with zirconium oxide powder to form multiple modified inorganic particles. A sintering step in which the modified inorganic particles are sintered under nitrogen atmosphere and temperature conditions of 400°C to 1000°C, A mixing step involves mixing a plurality of sintered modified inorganic particles with a molten glass raw material. A method for producing glass fiber yarn, comprising a drawing step of forming glass fiber yarn by drawing from the glass raw material which is a mixture of a plurality of the modified inorganic particles, A method for producing glass fiber yarn, characterized in that, in the coating step, the total weight of each modified inorganic particle is 100 wt%, the zirconium oxide powder content is 0.01 wt% to 5 wt%, and the inorganic particle content is 95 wt% to 99.99 wt%.
  2. The method for producing glass fiber yarn according to claim 1, wherein the inorganic particles are selected from at least one of the group consisting of silicon dioxide, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, aluminum oxide, magnesium oxide, talc, aluminum nitride, boron nitride, silicon carbide, zinc oxide, zirconium oxide, quartz, diamond powder, diamond-like powder, graphite, calcined kaolin, and fumed silica.
  3. The method for producing glass fiber yarn according to claim 1, wherein the average particle size of the modified inorganic particles is 0.01 μm to 50 μm.
  4. The method for producing glass fiber yarn according to claim 1, wherein, with a total weight of 100 wt% of the glass fiber yarn, the content of the modified inorganic particles is 0.1 wt% to 5 wt%, and the content of the glass raw material is 95 wt% to 99.9 wt%.
  5. The method for producing glass fiber yarn according to claim 1, wherein in the coating step, the zirconium oxide powder is dispersed in water to form a solution, and the solution is sprayed onto a plurality of inorganic particles to coat the surface of the plurality of inorganic particles with the zirconium oxide powder, thereby forming a plurality of modified inorganic particles.
  6. In the coating step, the zirconium compound is dissolved in water and the inorganic particles are added to the water so that the zirconium compound is formed on the surface of the plurality of inorganic particles. Subsequently, the plurality of inorganic particles and the zirconium compound are heated at a heating temperature of 100°C to 140°C to react the zirconium compound to form zirconium oxide powder, thereby coating the surface of the plurality of inorganic particles and forming the plurality of modified inorganic particles, as described in claim 1.
  7. The method for producing glass fiber yarn according to claim 6, wherein the zirconium compound is selected from at least one of the group consisting of zirconium oxychloride, zirconium carbonate, zirconium hydroxide, zirconium nitrate, sodium zirconate, and zirconium silicate.
  8. A method for producing glass fiber yarn according to claim 1, wherein the total weight of the glass raw materials is 100 wt%, and the glass raw materials comprise 59 wt% to 66 wt% silicon dioxide, 15 wt% to 26 wt% aluminum(III) oxide, 8 wt% to 12 wt% magnesium oxide, 0.1 wt% to 4 wt% calcium oxide, 0.1 wt% to 10 wt% diboron trioxide, and 0.1 wt% to 2 wt% alkali metal oxide.
  9. The method for producing glass fiber yarn according to claim 1, wherein the thermal expansion coefficient of the glass fiber yarn is 2.88 PPM/°C to 3.34 PPM/°C.
  10. Glass raw materials and A glass fiber yarn comprising a plurality of modified inorganic particles dispersed in the glass raw material, Each of the modified inorganic particles comprises inorganic particles and zirconium oxide powder coated over the inorganic particles. With a total weight of 100 wt% of each of the modified inorganic particles, the zirconium oxide powder content is 0.01 wt% to 5 wt%, and the inorganic particle content is 95 wt% to 99.99 wt%. The inorganic particles are selected from at least one of the group consisting of silicon dioxide, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, aluminum oxide, magnesium oxide, talc, aluminum nitride, boron nitride, silicon carbide, zinc oxide, zirconium oxide, quartz, diamond powder, diamond-like powder, graphite, calcined kaolin, and fumed silica, and the glass fiber yarn is characterized in that the inorganic particles are selected from at least one of these groups.
  11. The glass fiber yarn according to claim 10, wherein the average particle size of the modified inorganic particles is 0.01 μm to 50 μm.
  12. The glass fiber yarn according to claim 10, wherein, with a total weight of 100 wt%, the content of the modified inorganic particles is 0.1 wt% to 5 wt%, and the content of the glass raw material is 95 wt% to 99.9 wt%.
  13. The glass fiber yarn according to claim 10, wherein the total weight of the glass raw materials is 100 wt%, and the glass raw materials comprise 59 wt% to 66 wt% silicon dioxide, 15 wt% to 26 wt% aluminum(III) oxide, 8 wt% to 12 wt% magnesium oxide, 0.1 wt% to 4 wt% calcium oxide, 0.1 wt% to 10 wt% diboron trioxide, and 0.1 wt% to 2 wt% alkali metal oxide.
  14. The glass fiber yarn according to claim 10, wherein the thermal expansion coefficient of the glass fiber yarn is 2.88 PPM/°C to 3.34 PPM/°C.

Description

This invention relates to glass fiber yarn and a method for producing the same, and more particularly to glass fiber yarn containing zirconium oxide and a method for producing the same. Glass fiber yarns produced using conventional manufacturing methods often suffer from problems such as insufficient thermal stability. This is a flowchart of a method for producing glass fiber yarn according to an embodiment of the present invention.This is a schematic diagram of a glass fiber yarn according to an embodiment of the present invention.This is a schematic diagram of modified inorganic particles according to an embodiment of the present invention. To further understand the features and technical details of this invention, please refer to the following detailed description of the invention and the accompanying drawings. However, the accompanying drawings provided are for reference and illustrative purposes only and do not limit the scope of the claims of this invention. The following describes the implementation of the "glass fiber yarn and method for manufacturing the same" according to the present invention using specific embodiments, and those skilled in the art will be able to understand the advantages and effects of the present invention based on the contents disclosed herein. The present invention can be implemented or applied by other different specific embodiments, and various modifications and changes can be made to each detail herein, based on different viewpoints and applications, as long as they do not deviate from the concept of the present invention. It should be noted in advance that the accompanying drawings of the present invention are for simple schematic explanation and are not drawn to actual size. The technical details of the present invention will be described in more detail based on the following embodiments, but the scope of protection of the present invention is not limited by the disclosed content. It should be understood that, although various elements or signals may be described using terms such as “first,” “second,” and “third” in this specification, these elements or signals are not limited by these terms. These terms are primarily used to distinguish one element from another, or one signal from another. Furthermore, the term “or” as used in this specification may include any one or more combinations of the items listed in relation to the actual situation. [Method for manufacturing glass fiber yarn] As shown in Figures 1 to 3, Figure 1 is a flowchart of a method for manufacturing glass fiber yarn according to an embodiment of the present invention, Figure 2 is a schematic diagram of glass fiber yarn according to an embodiment of the present invention, and Figure 3 is a schematic diagram of modified inorganic particles according to an embodiment of the present invention. Embodiments of the present invention provide a method for manufacturing glass fiber yarn. The method for manufacturing glass fiber yarn includes a coating step S110, a sintering step S120, a mixing step S130, and a drawing step S140. Naturally, the method for manufacturing glass fiber yarn may include other steps as needed, but the present invention is not limited thereto. In the coating step S110, a plurality of modified inorganic particles 1 are formed by coating the surface of a plurality of inorganic particles with zirconium oxide powder. The modified inorganic particles 1 have a core-shell structure, which includes a core layer 11 formed from the inorganic particles and a shell layer 12 formed from the zirconium oxide powder. Assuming the total weight of each modified inorganic particle 1 is 100 wt%, the zirconium oxide powder content is 0.01 wt% to 5 wt%, and the inorganic particle content is 95 wt% to 99.99 wt%. The average particle diameter of the modified inorganic particles 1 is 0.01 μm to 50 μm, but the present invention is not limited thereto. It is important to note that the inorganic particles must possess high-temperature resistance properties to avoid melting or rupture during the sintering process. Preferably, the inorganic particles are selected from at least one of the group consisting of silicon dioxide, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, aluminum oxide, magnesium oxide, talc, aluminum nitride, boron nitride, silicon carbide, zinc oxide, zirconium oxide, quartz, diamond powder, diamond-like powder, graphite, calcined kaolin, and fumed silica. In one embodiment, the coating step S110 involves dispersing the zirconium oxide powder in water to form a solution, and then spraying the solution onto a plurality of inorganic particles to coat the surface of the plurality of inorganic particles with the zirconium oxide powder, thereby forming a plurality of modified inorganic particles 1. In this embodiment, for example, the solution is placed in a spray bottle, the solution is sprayed onto the inorganic particles through the spray bottle, the solution and the inor