Glass fiber and method for producing the same

Patent metadata

Field	Value
Publication number	US-2025214886-A1
Application number	US-202418626487-A
Country	US
Kind code	A1
Filing date	Apr 4, 2024
Priority date	Dec 27, 2023
Publication date	Jul 3, 2025
Grant date	—

Abstract

A glass fiber and a method for producing the same are provided. The method includes: dissolving a tungsten compound into a first organic solution to form a tungsten compound sol; adding a sulfur source into the tungsten compound sol and stirring the sulfur source and the tungsten compound sol to form a tungsten sulfide gel; placing the tungsten sulfide gel in an environment having a temperature of between 600° C. and 1,200° C. for 4 hours to 6 hours to form tungsten sulfide powder; covering the tungsten sulfide powder on a plurality of surfaces of inorganic powder to form modified inorganic powder, mixing the modified inorganic powder into a glass raw material that is in a molten state; and drawing the glass raw material mixed with the modified inorganic particles to form into a plurality of glass fibers.

First claim

What is claimed is:

1 . A method for producing glass fibers, comprising:
a tungsten compound sol forming process implemented by dissolving a tungsten compound into a first organic solution to form a tungsten compound sol; a tungsten sulfide gel forming process implemented by adding a sulfur source into the tungsten compound sol and stirring the sulfur source and the tungsten compound sol to form a tungsten sulfide gel; a heat treating process implemented by placing the tungsten sulfide gel in an environment having a temperature of between 600° C. and 1,200° C. for 4 hours to 6 hours to form tungsten sulfide powder; a covering process implemented by covering the tungsten sulfide powder on a plurality of surfaces of inorganic powder to form modified inorganic powder, wherein, based on a total weight of the modified inorganic powder being 100 wt %, a content of the tungsten sulfide powder is 0.01 wt % to 5 wt %; a mixing process implemented by mixing the modified inorganic powder into a glass raw material that is in a molten state; and a drawing process implemented by drawing the glass raw material mixed with the modified inorganic particles to form into a plurality of glass fibers.

2 . The method according to claim 1 , wherein, after the tungsten sulfide gel forming process and before the heat treating process, the method further includes a washing and drying process implemented by washing and filtering the tungsten sulfide gel for a plurality of times and then drying the tungsten sulfide gel.

3 . The method according to claim 1 , wherein, in the covering process, the tungsten sulfide powder is dispersed in a second inorganic solution, the tungsten sulfide powder and the second organic solution are added into the inorganic powder, and then the tungsten sulfide powder, the second organic solution, and the inorganic powder are stirred, such that the tungsten sulfide powder covers onto the inorganic powder to form the modified organic powder.

4 . The method according to claim 1 , wherein the tungsten compound is tungsten hexachloride.

5 . The method according to claim 1 , wherein a weight ratio between the tungsten compound and the sulfur source is between 5:1 and 8:1.

6 . The method according to claim 1 , wherein the inorganic powder is at least one from the group consisting of silicon dioxide, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, aluminum oxide, and calcined kaolin.

7 . The method according to claim 1 , wherein a particle size of the inorganic powder is within a range from 0.01 micrometers to 50 micrometers.

8 . The method according to claim 1 , wherein, based on a total weight of each of the glass fibers being 100 wt %, a content of the modified inorganic powder is 0.1 wt % to 5 wt %.

9 . The method according to claim 1 , wherein each of the glass fibers has a maximum static friction coefficient within a range from 0.39 to 0.48.

10 . A glass fiber, comprising:
a glass raw material; and a plurality of modified inorganic particles dispersed in the glass raw material, wherein each of the modified inorganic particles includes a inorganic particles and tungsten sulfide powder covering on the inorganic particles, and wherein, based on a total weight of the modified inorganic powder being 100 wt %, a content of the tungsten sulfide powder is 0.01 wt % to 5 wt %, wherein the inorganic powder is at least one from the group consisting of silicon dioxide, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, aluminum oxide, and calcined kaolin.

11 . The glass fiber according to claim 10 , wherein a particle size of the inorganic powder is within a range from 0.01 micrometers to 50 micrometers, and wherein, based on a total weight of the glass fiber being 100 wt %, a content of the modified inorganic powder is 0.1 wt % to 5 wt %.

12 . The glass fiber according to claim 10 , wherein the glass fiber has a maximum static friction coefficient within a range from 0.39 to 0.48.

Assignees

• Nan Ya Plastics Corp

Inventors

• Liao Te-Chao
• Cheng Wei-Sheng
• Chang Chia-Shan
• Su Chia-Chen

Classifications

• C03C25/00

  Surface treatment of fibres or filaments made from glass, minerals or slags · CPC title

• C03C13/00 Primary

  Fibre or filament compositions (manufacture of fibres or filaments C03B37/00) · CPC title

• C03C2214/05

  surface treated, e.g. coated · CPC title

• C03C14/004 Primary

  the non-glass component being in the form of particles or flakes · CPC title

• C03C3/091

  containing aluminium · CPC title