Glass fiber filament and manufacturing method thereof

Abstract

The invention discloses a glass fiber filament and a manufacturing method thereof. The manufacturing method of the glass fiber yarn comprises a coating step, a sintering step, a mixing step and a yarn drawing step. In the coating step, the surfaces of the plurality of inorganic particles are coated with a molybdenum compound to form a plurality of modified inorganic particles. In the sintering step, the modified inorganic particles are sintered in a nitrogen atmosphere at a temperature of 400 DEG C to 1,000 DEG C. In the mixing step, a plurality of the modified inorganic particles are mixed in a glass raw material in a molten state. In the yarn drawing step, the glass raw material in which the plurality of modified inorganic particles are mixed is drawn to form a plurality of glass fibers. According to the glass fiber filament and the manufacturing method thereof disclosed by the invention, the problem that the existing glass fiber filament is easy to break in a yarn drawing process can be effectively improved.

Description

Technical Field

[0001] The present invention relates to a glass fiber filament and a manufacturing method thereof, and particularly to a glass fiber filament containing a molybdenum compound and a manufacturing method thereof. Background Art

[0002] In the existing manufacturing methods of glass fiber filaments, due to the insufficient slidability of the glass fiber filaments, the glass fiber filaments are prone to breakage during the process of drawing the yarn. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a glass fiber filament and a manufacturing method thereof in view of the deficiencies of the prior art, which can effectively improve the problem that the existing glass fiber filaments are prone to breakage during the process of drawing the yarn.

[0004] To solve the above technical problem, one of the technical solutions adopted by the present invention is to provide a manufacturing method of a glass fiber filament, which includes: a coating step of coating a molybdenum compound on the surface of a plurality of inorganic particles to form a plurality of modified inorganic particles; based on the total weight of each of the modified inorganic particles being 100 wt%, the content of the molybdenum compound is between 0.01 wt% and 5 wt%; a sintering step of sintering the modified inorganic particles in a nitrogen atmosphere and at a temperature condition of 400°C to 1000°C; a mixing step of mixing a plurality of the modified inorganic particles into a molten glass raw material; and a drawing step of drawing the glass raw material mixed with a plurality of the modified inorganic particles to form a plurality of glass fiber filaments.

[0005] Preferably, the molybdenum compound is at least one selected from the group consisting of molybdenum trioxide, molybdenum tetroxide, molybdenum pentachloride, and molybdenum disulfide.

[0006] Preferably, the inorganic particles are at least one selected from the group consisting of silica, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, alumina, and calcined kaolin.

[0007] Preferably, the particle size of the modified inorganic particles is between 0.01 micrometers and 50 micrometers.

[0008] Preferably, based on the total weight of each of the glass fiber filaments being 100 wt%, the content of the modified inorganic particles is between 0.01 wt% and 5 wt%.

[0009] Preferably, in the coating step, the molybdenum compound is first dissolved in water to form a solution, then a plurality of the inorganic particles are put into the solution and the solution and the inorganic particles are stirred, and then the water in the solution is dried to coat the molybdenum compound on a plurality of the inorganic particles.

[0010] Preferably, in the coating step, the molybdenum compound is first dissolved in water to form a solution, and then the solution is filled into a sprayer. The solution is sprayed onto the inorganic particles through the sprayer, and the solution and the inorganic particles are stirred. Then, the water in the solution is dried to coat the molybdenum compound on the plurality of inorganic particles.

[0011] Preferably, the nozzle aperture of the sprayer is less than 0.2 microns.

[0012] Preferably, the glass fiber filament has a maximum static friction coefficient between 0.49 and 0.52.

[0013] To solve the above technical problems, another technical solution adopted by the present invention is to provide a glass fiber filament, which includes: 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 an inorganic particle and a molybdenum compound coated on the inorganic particle; wherein, based on the total weight of each of the modified inorganic particles being 100 wt%, the content of the molybdenum compound is between 0.01 wt% and 5 wt%; wherein, the molybdenum compound is selected from at least one of the material group consisting of molybdenum trioxide, molybdenum tetroxide, molybdenum pentachloride, and molybdenum disulfide, and the inorganic particle is selected from at least one of the material group consisting of silica, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, alumina, and calcined kaolin.

[0014] Preferably, the particle size of the modified inorganic particles is between 0.01 microns and 50 microns; wherein, based on the total weight of the glass fiber filament being 100 wt%, the content of the modified inorganic particles is between 0.01 wt% and 5 wt%.

[0015] Preferably, the glass fiber filament has a maximum static friction coefficient between 0.49 and 0.52.

[0016] One of the beneficial effects of the present invention is that the glass fiber filament and its manufacturing method provided by the present invention can effectively improve the problem that the existing glass fiber filament is prone to breakage during the drawing process through the technical solutions of "coating step, sintering step, mixing step, and drawing step", "based on the total weight of each of the modified inorganic particles being 100 wt%, the content of the molybdenum compound is between 0.01 wt% and 5 wt%", and "a plurality of modified inorganic particles are dispersed in the glass raw material".

[0017] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the present invention. However, the provided drawings are only for reference and illustration, and are not used to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a flowchart of the manufacturing method of the glass fiber filament according to an embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the glass fiber filament according to an embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the modified inorganic particles according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following are specific embodiments to illustrate the embodiments of the present invention regarding "glass fiber filaments and their manufacturing methods". Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. Additionally, the drawings of the present invention are only for simple schematic illustration and are not drawn according to actual dimensions, hereby stating in advance. The following embodiments will further detail the related technical content of the present invention, but the disclosed content is not intended to limit the protection scope of the present invention.

[0022] It should be understood that although terms such as "first", "second", "third", etc. may be used in this text to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another or one signal from another. Additionally, the term "or" used in this text should, depending on the actual situation, possibly include any one or a combination of multiple of the associated listed items.

[0023] Manufacturing Method of Glass Fiber Filaments

[0024] Refer to Figures 1 to 3 as shown Figure 1 It is a flowchart of the manufacturing method of the glass fiber filament according to an embodiment of the present invention, Figure 2 It is a schematic diagram of the glass fiber filament according to an embodiment of the present invention, and Figure 3 It is a schematic diagram of the modified inorganic particles according to an embodiment of the present invention. An embodiment of the present invention provides a manufacturing method of glass fiber filaments. The manufacturing method of the glass fiber filaments includes a coating step S110, a sintering step S120, a mixing step S130, and a drawing step S140.

[0025] In the coating step S110, a molybdenum compound is coated on the surfaces of a plurality of inorganic particles to form a plurality of modified inorganic particles 1. The modified inorganic particles 1 have a core-shell structure, and the core-shell structure includes a core layer 11 formed by the inorganic particles and a shell layer 12 formed by the molybdenum compound. Based on the total weight of each of the modified inorganic particles 1 being 100 wt%, the content of the molybdenum compound is between 0.01 wt% and 5 wt%, and the content of the inorganic particles is between 95 wt% and 99.9 wt%. The particle size of the modified inorganic particles is between 0.01 micrometers and 50 micrometers. Preferably, the particle size of the modified inorganic particles is between 0.1 micrometers and 30 micrometers.

[0026] The molybdenum compound can be at least one selected from the group of materials consisting of molybdenum trioxide, molybdenum tetroxide, molybdenum pentachloride, and molybdenum disulfide. Preferably, the molybdenum compound is molybdenum disulfide. The crystal structure of molybdenum disulfide is similar to that of graphene and includes a plurality of layered structures. The plurality of layered structures can slide relative to each other, so that the finally prepared glass fiber filaments can have a better maximum static friction coefficient. However, the molybdenum compound of the present invention is not limited to molybdenum disulfide.

[0027] It is worth mentioning that the inorganic particles need to have the property of high temperature resistance to avoid melting or cracking of the inorganic particles in the sintering step. Preferably, the inorganic particles are at least one selected from the group of materials consisting of silica, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, alumina, and calcined kaolin.

[0028] In the coating step S110 of one embodiment, the molybdenum compound is first dissolved in water to form a solution, then a plurality of the inorganic particles are put into the solution, and the solution and the inorganic particles are stirred. Then, the water in the solution is dried to coat the molybdenum compound on the plurality of inorganic particles. In this embodiment, based on the total weight of the solution being 100 wt%, the content of the inorganic particles can be between 15 wt% and 25 wt%. Preferably, the content of the inorganic particles is about 20 wt%. More specifically, after the inorganic particles are put into the solution, the solution and the inorganic particles can be stirred at about 80 °C for 2 to 4 hours. After filtering the solution and the inorganic particles, they are baked at about 120 °C for 2 to 4 hours, and then stirred with a three-dimensional mixer for 2 to 4 hours to obtain the modified inorganic particles 1.

[0029] Alternatively, in the coating step S110 of another embodiment, the molybdenum compound is first dissolved in water to form a solution, and then the solution is filled into a sprayer. The solution is sprayed onto the inorganic particles through the sprayer, and the solution and the inorganic particles are stirred. Then, the water in the solution is dried to coat the molybdenum compound on the plurality of inorganic particles. Preferably, the nozzle aperture of the sprayer is less than 0.2 microns. In addition, in this embodiment, the methods of stirring, filtering, and drying the solution and the inorganic particles can be the same as those in the previous embodiment.

[0030] In the sintering step S120, the modified inorganic particles 1 are sintered under a nitrogen atmosphere and at a temperature condition of 400°C to 1000°C. The nitrogen atmosphere refers to a pure nitrogen environment. If the sintering step S120 is not performed under a nitrogen atmosphere, the oxygen in the environment may cause the molybdenum compound to oxidize, thereby affecting the maximum static friction coefficient of the glass fiber filaments 100.

[0031] In addition, through the sintering step S120, the modified inorganic particles 1 will undergo lattice rearrangement to insert molybdenum ions into the lattice of the inorganic particles. In this way, the molybdenum ions are not easily detached from the surface of the inorganic particles, so the properties of the glass fiber filaments are not easily affected.

[0032] In the mixing step S130, a plurality of the modified inorganic particles 1 are mixed into the molten glass raw material 2. Based on the total weight of the glass raw material being 100 wt%, the glass raw material 2 may include, for example, 54 wt% to 63 wt% of silicon dioxide, 15 wt% to 24 wt% of aluminum oxide, 6 wt% to 13 wt% of magnesium oxide, 3.4 wt% to 14 wt% of calcium oxide, and 0.5 wt% to 9 wt% of boron trioxide, and 0 wt% to 7 wt% of rhenium trioxide. However, the present invention does not limit the specific components and the content of each component included in the glass raw material 2.

[0033] In the drawing step S140, the glass raw material 2 mixed with a plurality of the modified inorganic particles 1 is drawn to form a plurality of the glass fiber filaments 100. Based on the total weight of each of the glass fiber filaments 100 being 100 wt%, the content of the modified inorganic particles 1 is between 0.1 wt% and 5 wt%, and the content of the glass raw material 2 is between 95 wt% and 99.9 wt%.

[0034] It is worth mentioning that after the drawing step S140, the plurality of glass fiber filaments 100 already have excellent slidability, and after the drawing step S140, there is no need to add any lubricant to the surfaces of the plurality of glass fiber filaments 100. Additionally, in the present invention, the modified inorganic particles 1 are uniformly dispersed in the glass fiber filaments 100, rather than only being located on the surfaces of the glass fiber filaments 100, so that the glass fiber filaments 100 are not easily broken during the drawing step S140.

[0035] In other words, the manufacturing method of glass fiber filaments with a lubricant added after the drawing step and glass fiber filaments with a lubricant only located on the surface are not suitable for comparison with the manufacturing method of the glass fiber filaments and the glass fiber filaments in the present invention. Moreover, if the lubricant is only added to the surface of the glass fiber filaments, since the slidability inside the glass fiber filaments is not improved, the glass fiber filaments are likely to break during the drawing process.

[0036] Furthermore, if the molybdenum compound is directly added to the glass raw material 2, the molybdenum compound cannot be uniformly dispersed in the glass fiber filaments 100. Accordingly, in the manufacturing method of the glass fiber filaments of the present invention, the molybdenum compound is first coated on the surface of the inorganic particles to form the modified inorganic particles 1, and then the modified inorganic particles 1 are dispersed in the glass raw material 2, so that the modified inorganic particles 1 can be uniformly dispersed in the glass fiber filaments 100.

[0037] The glass fiber filaments 100 have a dielectric constant between 2 and 7, and the glass fiber filaments 100 have a maximum static friction coefficient between 0.49 and 0.52.

[0038] Glass fiber filament

[0039] The present invention also provides a glass fiber filament 100, which can but is not limited to be obtained by the aforementioned manufacturing method of glass fiber filaments. The glass fiber filament 100 includes a glass raw material 2 and a plurality of modified inorganic particles 1 dispersed in the glass raw material 2.

[0040] Each of the modified inorganic particles 1 includes an inorganic particle and a molybdenum compound coated on the inorganic particle. The modified inorganic particles 1 have a core-shell structure, and the core-shell structure includes a core layer 11 formed by the inorganic particle and a shell layer 12 formed by the molybdenum compound. The molybdenum compound is at least one selected from the material group consisting of molybdenum trioxide, molybdenum tetroxide, molybdenum pentachloride, and molybdenum disulfide, and the inorganic particle is at least one selected from the material group consisting of silica, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, alumina, and calcined kaolin.

[0041] The particle size of the modified inorganic particles 1 is between 0.01 μm and 50 μm. Based on the total weight of each glass fiber filament 100 being 100 wt%, the content of the modified inorganic particles 1 is between 0.1 wt% and 5 wt%, and the content of the glass raw material 2 is between 95 wt% and 99.9 wt%.

[0042] The glass fiber filament 100 has a dielectric constant between 2 and 7, and the glass fiber filament 100 has a maximum static friction coefficient between 0.49 and 0.52.

[0043] Experimental data test

[0044] Hereinafter, the content of the present invention will be described in detail with reference to Demonstration Examples 1 to 3 and Comparative Example 1. However, the following demonstration examples are only for helping to understand the present invention, and the scope of the present invention is not limited to these demonstration examples.

[0045] In Comparative Example 1, only inorganic particles were added, and the surface of the inorganic particles was not coated with a molybdenum compound. In Demonstration Examples 1 to 3, molybdenum trioxide, molybdenum pentachloride, and molybdenum disulfide were respectively coated on the surface of the inorganic particles to form modified inorganic particles. In the manufacturing method of the glass fiber filament of Comparative Example 1, based on the total weight of the glass fiber filament being 100 wt%, the content of the inorganic particles was 0.2 wt%. In the manufacturing methods of the glass fiber filaments of Demonstration Examples 1 to 3, based on the total weight of the glass fiber filament being 100 wt%, the content of the modified inorganic particles was 0.2 wt%.

[0046] The maximum static friction coefficients of the glass fiber filaments obtained by the manufacturing methods of Comparative Example 1 and Demonstration Examples 1 to 3 are shown in Table 1 below, and the test method of the maximum static friction coefficient is described as follows.

[0047] Test method for the maximum static friction coefficient of the glass fiber filament: Take two test pieces with a thickness of 5 mm and composed of a plurality of glass fiber filaments, and measure the maximum static friction coefficient of the test pieces with a friction coefficient measuring instrument of model CFT-400 under a load condition of 200 g.

[0048] Table 1 includes the maximum static friction coefficients of glass fiber filaments with different components as molybdenum compounds

[0049]

[0050] Discussion of test results

[0051] In Comparative Example 1, no molybdenum compound was added, so the maximum static friction coefficient of the glass fiber filament was relatively high. In Demonstration Examples 1 to 3, molybdenum trioxide, molybdenum pentachloride, and molybdenum disulfide were respectively added as molybdenum compounds, and the glass fiber filaments had an ideal maximum static friction coefficient (between 0.49 and 0.52).

[0052] Advantageous effects of embodiments of the present invention

[0053] One of the advantageous effects of the present invention is that the glass fiber filaments and the manufacturing method thereof provided by the present invention can effectively improve the problem that the existing glass fiber filaments are prone to breakage during the process of drawing yarn through the technical solutions of "coating step, sintering step, mixing step and drawing step", "based on the total weight of each of the modified inorganic particles being 100 wt%, the content of the molybdenum compound is between 0.01 wt% and 5 wt%", and "a plurality of modified inorganic particles are dispersed in the glass raw material".

[0054] The content disclosed above is only a preferred and feasible embodiment of the present invention, and does not limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the content of the specification and drawings of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A method for producing glass fiber yarn, characterized in that: The manufacturing method of the glass fiber yarn comprises: A coating step, coating the molybdenum compound on the surface of the plurality of inorganic particles to form a plurality of modified inorganic particles; wherein the content of the molybdenum compound is between 0.01wt% and 5wt% based on the total weight of each of the modified inorganic particles being 100wt%; a sintering step, sintering the modified inorganic particles in a nitrogen atmosphere at a temperature of 400° C. to 1000° C.; a mixing step of mixing a plurality of the modified inorganic particles into a molten glass raw material; and The drawing step is to draw the glass raw material mixed with the plurality of modified inorganic particles to form a plurality of glass fiber yarns.

2. The method for producing glass fiber yarn according to claim 1, characterized in that: The molybdenum compound is at least one selected from a material group consisting of molybdenum trioxide, molybdenum tetroxide, molybdenum pentachloride and molybdenum disulfide.

3. The method for producing glass fiber yarn according to claim 1, characterized in that: The inorganic particles are at least one selected from a material group consisting of silicon dioxide, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, aluminum oxide and calcined kaolin.

4. The method for producing glass fiber yarn according to claim 1, characterized in that: The particle size of the modified inorganic particles is between 0.01 micrometers and 50 micrometers.

5. The method for producing glass fiber yarn according to claim 1, characterized in that: Based on the total weight of each of the glass fiber strands being 100 wt %, the content of the modified inorganic particles is between 0.1 wt % and 5 wt %.

6. The method for producing glass fiber yarn according to claim 1, characterized in that: In the coating step, the molybdenum compound is first dissolved in water to prepare a solution, a plurality of the inorganic particles are added to the solution and the solution and the inorganic particles are stirred, and then the water in the solution is dried to coat the molybdenum compound on the plurality of the inorganic particles.

7. The method for producing glass fiber yarn according to claim 1, characterized in that: In the coating step, the molybdenum compound is first dissolved in water to prepare a solution, and then the solution is placed in a sprayer. The solution is sprayed on the inorganic particles through the sprayer and the solution and the inorganic particles are stirred. Then, the water in the solution is dried so that the molybdenum compound is coated on a plurality of the inorganic particles.

8. The method for producing glass fiber yarn according to claim 7, characterized in that: The nozzle aperture of the sprayer is less than 0.2 microns.

9. The method for producing glass fiber yarn according to claim 1, characterized in that: The glass fiber filaments have a maximum static friction coefficient between 0.49 and 0.

52.

10. A glass fiber yarn, characterized in that: The glass fiber yarn comprises: Glass raw materials; and A plurality of modified inorganic particles are dispersed in the glass raw material; wherein each of the modified inorganic particles comprises an inorganic particle and a molybdenum compound coated on the inorganic particle; Wherein, based on the total weight of each of the modified inorganic particles being 100wt%, the content of the molybdenum compound is between 0.01wt% and 5wt%; The molybdenum compound is at least one selected from the group consisting of molybdenum trioxide, molybdenum tetroxide, molybdenum pentachloride and molybdenum disulfide, and the inorganic particles are at least one selected from the group consisting of silicon dioxide, titanium dioxide, aluminum hydroxide, magnesium hydroxide, calcium carbonate, aluminum oxide and calcined kaolin.

11. The glass fiber filament according to claim 10, characterized in that: The particle size of the modified inorganic particles is between 0.01 micrometers and 50 micrometers; wherein, based on the total weight of the glass fiber yarn being 100wt%, the content of the modified inorganic particles is between 0.1wt% and 5wt%.

12. The glass fiber filament according to claim 10, characterized in that: The glass fiber filaments have a maximum static friction coefficient between 0.49 and 0.52.

Images