CN112679096A - High-performance colored glass fiber and preparation method thereof - Google Patents
High-performance colored glass fiber and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a high-performance colored glass fiber and a preparation method thereof, wherein the high-performance colored glass fiber comprises the following main components in percentage by weight: silicon dioxide, calcined alumina, magnesium oxide, calcium oxide, sodium oxide, calcium oxide, potassium oxide, zirconium oxide, cobalt oxide, cerium oxide, titanium oxide, barium oxide, zinc oxide, chromium trioxide, nickel oxide, copper oxide, strontium oxide, molybdenum oxide, boron oxide, manganese oxide, and iron trioxide; according to the invention, ferric oxide is added into the raw material components to replace antimony trioxide and arsenic trioxide harmful clarifying agents, and the introduction of ferric oxide can obviously reduce bubbles in glass liquid, so that the strength of glass fiber can be improved.
Description
Technical Field
The invention relates to the technical field of glass fiber, in particular to high-performance colored glass fiber and a preparation method thereof.
Background
The glass fiber is an inorganic non-metallic material with excellent performance, has various varieties and has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, is prepared by taking pyrophyllite, quartz sand, limestone, dolomite, borocalcite, boromagnesite and other ores as raw materials and carrying out processes of high-temperature melting, wire drawing, winding, weaving and the like, has the diameter of a monofilament of several micrometers to twenty micrometers, is equivalent to 1/20-1/5 of a hair, and each bundle of fiber precursor consists of hundreds of monofilaments and even thousands of monofilaments. Glass fibers are commonly used as reinforcing materials in composite materials, electrical and thermal insulation materials, circuit substrates, and other various fields of the national economy.
However, the glass fiber produced by the traditional process has the defects of brittle property, poor wear resistance, complex steps of the traditional process and manpower and material resource consumption.
Disclosure of Invention
The invention aims to provide a high-performance colored glass fiber and a preparation method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the high-performance colored glass fiber comprises the following main components in percentage by weight: silica, calcined alumina, magnesia, calcia, sodium oxide, calcium oxide, potassium oxide, zirconia, cobalt oxide, cerium oxide, titanium oxide, and iron oxide.
Preferably, the main components comprise the following components in percentage by weight: 50-75% of silicon dioxide, 4-20% of calcined alumina, 3-15% of magnesium oxide, 2-13% of calcium oxide, 7-16% of sodium oxide, 0.1-2% of potassium oxide, 0.01-1% of titanium oxide, 0.01-9% of zirconium oxide, 0.01-9% of cobalt oxide, 0.01-6% of cerium oxide, 0.01-3% of titanium oxide and 0.1-0.5% of ferric oxide.
Preferably, the calcined alumina is high-purity alumina raw material prepared by a Bayer process, and is calcined at the temperature of 950-1200 ℃ to obtain alpha-alumina powder.
Preferably, the calcined alumina has a moisture content of 1.0% or less and an iron content of 0.15% or less.
A preparation method of high-performance colored glass fiber comprises the following steps:
s1, weighing the raw materials according to the formula weight, and then putting the weighed raw materials into a screening machine for screening to remove impurities in the raw materials;
s2, placing the screened raw materials into a drying box for drying treatment, naturally cooling to normal temperature, and taking out;
s3, respectively crushing the dried raw materials in the step S2, sieving to obtain crushed materials, and then uniformly mixing the crushed materials to obtain a mixture;
s4, putting the mixture obtained in the step S3 into a kiln pool, heating and melting the mixture in the kiln pool to form molten glass, and forming heat convection due to uneven heating of the molten glass in the kiln pool to uniformly mix the molten glass to obtain uniform molten glass;
s5, enabling the uniform molten glass formed in the step S4 to flow to each passage of a wire drawing workshop from one end of a kiln pool, enabling the uniform molten glass to flow out of small holes of a bushing plate, and carrying out spray cooling on the molten glass flowing out of the bushing plate to form glass filaments;
and S6, coating the glass fiber cooled in the step S5 with a sizing agent, and then winding the glass fiber coated with the sizing agent on a winding drum by using a wire drawing machine to obtain a finished product.
Preferably, in step S3, the number of the sieving meshes is 150-300 meshes.
Preferably, the heating method in step S4 is electric melting or gas spraying, the fuel is gas or electric energy, and the heating temperature is 1600-.
Preferably, in step S5, the diameter of the glass filaments drawn from the bushing is 3um to 24 um.
Preferably, in step S5, the insulation of the flange of the bushing is enhanced, and the insulation is performed between the copper clamp and the end wall of the bushing.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, ferric oxide is added into the raw material components to replace antimony trioxide and arsenic trioxide harmful clarifying agents, and the introduction of ferric oxide can obviously reduce bubbles in glass liquid, so that the strength of glass fiber can be improved.
2. The preparation method has the advantages of simple process, energy conservation, consumption reduction, stable forming, high efficiency and high yield, is convenient for large-scale full-automatic production, becomes an international mainstream production process, and the glass fiber produced by the process accounts for more than 90 percent of the global yield.
3. The invention can strengthen the heat preservation of the flange of the bushing plate and preserve the heat between the copper chuck and the end wall of the bushing plate, which is beneficial to reducing the temperature difference of the glass liquid entering the bushing tip area, thereby achieving the purpose of eliminating the crystallization of the bushing tip and further improving the strength of the glass fiber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The high-performance colored glass fiber comprises the following main components in percentage by weight: 50% of silicon dioxide, 4% of calcined alumina, 3% of magnesium oxide, 2% of calcium oxide, 7% of sodium oxide, 0.1% of potassium oxide, 0.01% of titanium oxide, 0.01% of zirconium oxide, 0.01% of cobalt oxide, 0.01% of cerium oxide, 0.01% of titanium oxide and 0.1% of ferric oxide.
Wherein the calcined alumina is high-purity alumina raw material prepared by a Bayer process, and is calcined at the temperature of 950-1200 ℃ to obtain alpha-alumina powder.
Wherein the water content of the calcined alumina is less than or equal to 1.0 percent, and the iron content is less than or equal to 0.15 percent.
A preparation method of high-performance colored glass fiber comprises the following steps:
s1, weighing the raw materials according to the formula weight, and then putting the weighed raw materials into a screening machine for screening to remove impurities in the raw materials;
s2, placing the screened raw materials into a drying box for drying treatment, naturally cooling to normal temperature, and taking out;
s3, respectively crushing the dried raw materials in the step S2, sieving to obtain crushed materials, and then uniformly mixing the crushed materials to obtain a mixture;
s4, putting the mixture obtained in the step S3 into a kiln pool, heating and melting the mixture in the kiln pool to form molten glass, and forming heat convection due to uneven heating of the molten glass in the kiln pool to uniformly mix the molten glass to obtain uniform molten glass;
s5, enabling the uniform molten glass formed in the step S4 to flow to each passage of a wire drawing workshop from one end of a kiln pool, enabling the uniform molten glass to flow out of small holes of a bushing plate, and carrying out spray cooling on the molten glass flowing out of the bushing plate to form glass filaments;
and S6, coating the glass fiber cooled in the step S5 with a sizing agent, and then winding the glass fiber coated with the sizing agent on a winding drum by using a wire drawing machine to obtain a finished product.
Wherein, in step S3, the screen mesh number is 150-300 meshes.
Wherein, the heating method in step S4 is electric melting or gas spraying, the fuel is gas or electric energy, and the heating temperature is 1600-2000 ℃.
Wherein, in step S5, the diameter of the glass fiber drawn from the bushing is 3um-24 um.
In step S5, the flange of the bushing is reinforced and the insulation between the copper clamp and the end wall of the bushing is enhanced.
Example 2
A high-performance colored glass fiber comprises, by weight, 60% of silicon dioxide, 10% of calcined alumina, 8% of magnesium oxide, 6% of calcium oxide, 9% of sodium oxide, 0.3% of potassium oxide, 0.04% of titanium oxide, 1.2% of zirconium oxide, 1.6% of cobalt oxide, 1.8% of cerium oxide, 1.2% of titanium oxide, and 0.25% of ferric oxide.
A preparation method of high-performance colored glass fiber comprises the following steps:
s1, weighing the raw materials according to the formula weight, and then putting the weighed raw materials into a screening machine for screening to remove impurities in the raw materials;
s2, placing the screened raw materials into a drying box for drying treatment, naturally cooling to normal temperature, and taking out;
s3, respectively crushing the dried raw materials in the step S2, sieving to obtain crushed materials, and then uniformly mixing the crushed materials to obtain a mixture;
s4, putting the mixture obtained in the step S3 into a kiln pool, heating and melting the mixture in the kiln pool to form molten glass, and forming heat convection due to uneven heating of the molten glass in the kiln pool to uniformly mix the molten glass to obtain uniform molten glass;
s5, enabling the uniform molten glass formed in the step S4 to flow to each passage of a wire drawing workshop from one end of a kiln pool, enabling the uniform molten glass to flow out of small holes of a bushing plate, and carrying out spray cooling on the molten glass flowing out of the bushing plate to form glass filaments;
and S6, coating the glass fiber cooled in the step S5 with a sizing agent, and then winding the glass fiber coated with the sizing agent on a winding drum by using a wire drawing machine to obtain a finished product.
Example 3
A high-performance colored glass fiber comprises, by weight, 70% of silicon dioxide, 15% of calcined alumina, 10% of magnesium oxide, 10% of calcium oxide, 13% of sodium oxide, 1.6% of potassium oxide, 0.05% of titanium oxide, 3% of zirconium oxide, 5% of cobalt oxide, 4% of cerium oxide, 1.63% of titanium oxide and 0.35% of ferric oxide.
A preparation method of high-performance colored glass fiber comprises the following steps:
s1, weighing the raw materials according to the formula weight, and then putting the weighed raw materials into a screening machine for screening to remove impurities in the raw materials;
s2, placing the screened raw materials into a drying box for drying treatment, naturally cooling to normal temperature, and taking out;
s3, respectively crushing the dried raw materials in the step S2, sieving to obtain crushed materials, and then uniformly mixing the crushed materials to obtain a mixture;
s4, putting the mixture obtained in the step S3 into a kiln pool, heating and melting the mixture in the kiln pool to form molten glass, and forming heat convection due to uneven heating of the molten glass in the kiln pool to uniformly mix the molten glass to obtain uniform molten glass;
s5, enabling the uniform molten glass formed in the step S4 to flow to each passage of a wire drawing workshop from one end of a kiln pool, enabling the uniform molten glass to flow out of small holes of a bushing plate, and carrying out spray cooling on the molten glass flowing out of the bushing plate to form glass filaments;
and S6, coating the glass fiber cooled in the step S5 with a sizing agent, and then winding the glass fiber coated with the sizing agent on a winding drum by using a wire drawing machine to obtain a finished product.
Example 4
The high-performance colored glass fiber comprises 75% of silicon dioxide, 20% of calcined alumina, 15% of magnesium oxide, 13% of calcium oxide, 16% of sodium oxide, 2% of potassium oxide, 1% of titanium oxide, 9% of zirconium oxide, 9% of cobalt oxide, 6% of cerium oxide, 3% of titanium oxide and 0.5% of ferric oxide by weight percentage.
A preparation method of high-performance colored glass fiber comprises the following steps:
s1, weighing the raw materials according to the formula weight, and then putting the weighed raw materials into a screening machine for screening to remove impurities in the raw materials;
s2, placing the screened raw materials into a drying box for drying treatment, naturally cooling to normal temperature, and taking out;
s3, respectively crushing the dried raw materials in the step S2, sieving to obtain crushed materials, and then uniformly mixing the crushed materials to obtain a mixture;
s4, putting the mixture obtained in the step S3 into a kiln pool, heating and melting the mixture in the kiln pool to form molten glass, and forming heat convection due to uneven heating of the molten glass in the kiln pool to uniformly mix the molten glass to obtain uniform molten glass;
s5, enabling the uniform molten glass formed in the step S4 to flow to each passage of a wire drawing workshop from one end of a kiln pool, enabling the uniform molten glass to flow out of small holes of a bushing plate, and carrying out spray cooling on the molten glass flowing out of the bushing plate to form glass filaments;
and S6, coating the glass fiber cooled in the step S5 with a sizing agent, and then winding the glass fiber coated with the sizing agent on a winding drum by using a wire drawing machine to obtain a finished product.
Experimental example: the conventional glass fiber product (designated as a control group in the table), the glass fiber product obtained in example 1, the glass fiber product obtained in example 2, the glass fiber product obtained in example 3, and the glass fiber product obtained in example 4 were selected and subjected to a performance test.
The test method comprises the following steps: 1. and (3) appearance detection: the entire cop was checked by visual inspection under illumination with good light gathering and uniform luminosity at a distance of 0.5 m.
2. Fiber diameter: according to the regulation of GB/T7690.5.
3. Linear density: the impregnating compound is removed in the operation according to the regulation of GB/T7690.1, and the number of samples per unit product is 2.
4. Yield: and counting the proportion of the number of finished products to the number of total products.
From the various embodiments above, it is known that: according to the invention, ferric oxide is added into the raw material components to replace antimony trioxide and arsenic trioxide harmful clarifying agents, and the introduction of ferric oxide can obviously reduce bubbles in glass liquid, so that the strength of glass fiber can be improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A high-performance colored glass fiber is characterized in that: the main components of the fertilizer comprise the following components in percentage by weight: silica, calcined alumina, magnesia, calcia, sodium oxide, calcium oxide, potassium oxide, zirconia, cobalt oxide, cerium oxide, titanium oxide, and iron oxide.
2. The high performance blue glass fiber according to claim 1, wherein: the main components of the fertilizer comprise the following components in percentage by weight: 50-75% of silicon dioxide, 4-20% of calcined alumina, 3-15% of magnesium oxide, 2-13% of calcium oxide, 7-16% of sodium oxide, 0.1-2% of potassium oxide, 0.01-1% of titanium oxide, 0.01-9% of zirconium oxide, 0.01-9% of cobalt oxide, 0.01-6% of cerium oxide, 0.01-3% of titanium oxide and 0.1-0.5% of ferric oxide.
3. The high performance colored glass fiber of claim 1, wherein: the calcined alumina is high-purity alumina raw material prepared by a Bayer process, and is calcined at the temperature of 950-1200 ℃ to obtain alpha-alumina powder.
4. The high performance colored glass fiber of claim 1, wherein: the water content of the calcined alumina is less than or equal to 1.0 percent, and the iron content is less than or equal to 0.15 percent.
5. A preparation method of high-performance colored glass fiber is characterized by comprising the following steps: the method comprises the following steps:
s1, weighing the raw materials according to the formula weight, and then putting the weighed raw materials into a screening machine for screening to remove impurities in the raw materials;
s2, placing the screened raw materials into a drying box for drying treatment, naturally cooling to normal temperature, and taking out;
s3, respectively crushing the dried raw materials in the step S2, sieving to obtain crushed materials, and then uniformly mixing the crushed materials to obtain a mixture;
s4, putting the mixture obtained in the step S3 into a kiln pool, heating and melting the mixture in the kiln pool to form molten glass, and forming heat convection due to uneven heating of the molten glass in the kiln pool to uniformly mix the molten glass to obtain uniform molten glass;
s5, enabling the uniform molten glass formed in the step S4 to flow to each passage of a wire drawing workshop from one end of a kiln pool, enabling the uniform molten glass to flow out of small holes of a bushing plate, and carrying out spray cooling on the molten glass flowing out of the bushing plate to form glass filaments;
and S6, coating the glass fiber cooled in the step S5 with a sizing agent, and then winding the glass fiber coated with the sizing agent on a winding drum by using a wire drawing machine to obtain a finished product.
6. The method for preparing high-performance colored glass fiber according to claim 5, wherein the method comprises the following steps: in step S3, the number of the sieving meshes is 150-300 meshes.
7. The method for preparing high-performance colored glass fiber according to claim 5, wherein the method comprises the following steps: in step S4, the heating method is electric melting or gas spraying, the fuel is gas or electric energy, and the heating temperature is 1600-.
8. The method for preparing high-performance colored glass fiber according to claim 5, wherein the method comprises the following steps: in step S5, the glass filaments drawn from the bushing have a diameter of 3um to 24 um.
9. The method for preparing high-performance colored glass fiber according to claim 5, wherein the method comprises the following steps: in step S5, the flange of the bushing is insulated to maintain the temperature between the copper clamp and the end wall of the bushing.
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| CN115897011A (en) * | 2022-08-27 | 2023-04-04 | 安徽省绩溪华林环保科技股份有限公司 | Polytetrafluoroethylene fiber and glass fiber blended filter material |
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