Titanium dioxide-doped phosphate alkali-resistant glass fiber and preparation method thereof

A technology of alkali-resistant glass fiber and titanium dioxide, which is applied in glass manufacturing equipment, manufacturing tools, etc., can solve the problems of poor alkali resistance and high production cost of glass fiber, achieve strong corrosion resistance, reduce production cost, and reduce production cost.

Active Publication Date: 2019-06-28
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the current problems of poor alkali resistance and high production cost of glass fibers, the present invention proposes to dope high-field-strength, lightweight, corrosion-resistant rare-earth element titanium, through TiO 2 and Ca(OH) in cement 2 reaction to generate Ti(OH) 4 Glue to prevent cement from corroding glass fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Calculate the specific mass that needs to be weighed according to the content in the experimental formula, and accordingly, weigh 0.3%TiO 2 , 52.5%P 2 o 5 , 12.5% ​​Al 2 o 3 , 34.7% CaO, put the weighed raw materials in a mixer and stir evenly, and then send the mixture into the kiln through the pipeline for melting and clarification at 1450°C. The kiln mixture was kept warm for 2.5 hours and clarified for 30 minutes. The clarified glass melt flows out through the platinum leak plate to obtain glass fibers with a diameter of 15-20mm. The cooled glass fiber samples of appropriate size were selected and soaked in 5wt% NaOH solution at 25°C for 6h, and the mass loss rate was 1.25%. Similarly, select a cooled glass fiber sample of an appropriate size and soak it in pure aqueous solution at 25°C for 6 hours, and the mass loss rate is 0.43%. Therefore, the phosphate alkali-resistant glass fiber prepared by the method has good alkali resistance and can be applied to glas...

Embodiment 2

[0027] Calculate the specific mass that needs to be weighed according to the content in the experimental formula, and accordingly, weigh 0.7%TiO 2 , 52.5%P 2 o 5 , 12.5%Al 2 o 3 , 34.3% CaO, put the weighed raw materials in a mixer and stir evenly, and then send the mixture into the kiln through the pipeline for melting and clarification at 1450°C. The kiln mixture was kept warm for 2.5 hours and clarified for 30 minutes. The clarified glass melt flows out through the platinum leak plate to obtain glass fibers with a diameter of 15-20mm. Select a cooled glass fiber sample of an appropriate size and place it in 5wt% NaOH solution for 6 hours at 25°C, and the mass loss rate is 1.32%. Similarly, select a cooled glass fiber sample of an appropriate size and place it at 25°C Soaked in pure aqueous solution for 6h, the mass loss rate is 0.40%. Therefore, the phosphate alkali-resistant glass fiber prepared by the method has good alkali resistance and can be applied to glass fib...

Embodiment 3

[0029] Calculate the specific mass that needs to be weighed according to the content in the experimental formula, and accordingly, weigh 1.1%TiO 2 , 52.5%P 2 o 5 , 12.5%Al 2 o 3 , 33.9% CaO, put the weighed raw materials in a mixer and stir evenly, and then send the mixture into the kiln through the pipeline for melting and clarification at 1450°C. The kiln mixture was kept warm for 2.5 hours and clarified for 30 minutes. The clarified glass melt flows out through the platinum leak plate to obtain glass fibers with a diameter of 15-20mm. Select a cooled glass fiber sample of an appropriate size and place it in a 5wt% NaOH solution for 6 hours at 25°C, and its mass loss rate is 1.28%. Soaked in pure aqueous solution for 6h, the mass loss rate was 0.39%. Therefore, the phosphate alkali-resistant glass fiber prepared by the method has good alkali resistance and can be applied to glass fiber reinforced concrete.

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Abstract

The invention discloses a titanium dioxide-doped phosphate alkali-resistant glass fiber and a preparation method thereof. The invention belongs to the technical field of rare earth oxide doped phosphate glass. Compared with common glass fiber, the components of the glass fiber have no boron and no fluorine, and the preparation process has no air pollution. The glass fiber is prepared from, by masspercentage, the following components: 45-60 percent of P2O5, 10-20 percent of Al2O3, 30-40 percent of CaO, and 0.1-2 percent of TiO. The glass fiber is prepared by a tank furnace wire drawing method.On the basis of a CaO-Al2O3-P2O5 ternary basic glass component, titanium dioxide is added, so that a phosphate glass network is reinforced by high-field-strength titanium ions, P-O-Ti bonds are formed at the same time, and water resistance and alkali resistance are enhanced. The preparation method aims at producing a highly alkali-resistant glass fiber that can be used in environments with higheralkalinity, such as glass fiber reinforced concrete.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic material glass fiber, and in particular relates to a titanium dioxide-doped phosphate alkali-resistant glass fiber and a preparation method thereof which can be used in an alkaline environment. Background technique [0002] Alkali-resistant glass fiber is the rib material of glass fiber reinforced (cement) concrete (GRC for short). It is 100% inorganic fiber and is an ideal substitute for steel and asbestos in non-load-bearing cement components. Alkali-resistant glass fiber is characterized by good alkali resistance, which can effectively resist the erosion of high-alkali substances in cement, strong grip, high elastic modulus, impact resistance, tensile strength, and high flexural strength. It is non-combustible, frost-resistant, and temperature-resistant. , Strong humidity change ability, excellent crack resistance and impermeability, strong designability, easy molding, etc. Alkal...

Claims

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Application Information

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IPC IPC(8): C03C13/02C03B37/022
Inventor 岳云龙万向荣康俊峰屈雅石庆顺张路路赵继玲赵金刚
Owner UNIV OF JINAN
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