A nanomaterial-enhanced cured glass composite

Abstract

This invention discloses a nanomaterial-reinforced cured glass composite material. The formulation of this nanomaterial-reinforced cured glass composite material includes silicate-based glass, siloxane nanoparticles, zirconia nanoparticles, carbon nanotubes, and a surface modifier. This material forms a coating with excellent smoothness, hydrophobicity, and thermal shock resistance on the inner wall of the exhaust pipe, preventing the adhesion and accumulation of volatile nuclides. By optimizing process parameters, such as ultrasonic power and ball milling time, a nanomaterial-reinforced cured glass composite material adaptable to high-temperature, high-pressure, and acid / alkali environments is prepared. When applied to the inner wall of the furnace exhaust pipe, this material effectively prevents the accumulation of harmful substances, solves the problem of exhaust pipe blockage, and improves environmental protection and production efficiency. This innovative technical solution has significant industrial application prospects and can achieve considerable economic and environmental benefits in high-level radioactive waste treatment systems.

Description

Technical Field

[0001] This invention relates to the field of high-level radioactive wastewater treatment technology, and in particular to a nanomaterial-reinforced cured glass composite material. Background Technology

[0002] In the glass curing process, the ceramic electric melting furnace is the core equipment for the melting reaction between high-level radioactive waste and glass. However, during furnace operation, blockages in the exhaust pipe severely affect the normal operation of the system. Nitrogen oxides, sulfides, and radioactive effluents in the exhaust gas accumulate in the exhaust pipe, leading to a decline in equipment performance and frequent blockages during the production process.

[0003] Traditional exhaust pipe materials cannot effectively solve the problem of adhesion and accumulation of harmful substances in exhaust gases, leading to difficult cleaning, high maintenance costs, and affecting the stability and efficiency of the entire curing process. Exhaust pipe blockage can not only cause production interruptions but also increase the complexity of waste liquid treatment and reduce equipment lifespan. Summary of the Invention

[0004] The purpose of this invention is to provide a nanomaterial-reinforced cured glass composite material.

[0005] To achieve the above objectives, the present invention is implemented according to the following technical solution:

[0006] The nanomaterial-reinforced cured glass composite material of the present invention comprises, by weight, the following components:

[0007] 70-90 parts of silicate-based glass

[0008] 3-5 parts of siloxane nanoparticles

[0009] 2-3 parts of zirconium oxide nanoparticles

[0010] 4-6 parts of carbon nanotubes

[0011] 0.1 to 1 part of surface modifier.

[0012] Preferred, by weight:

[0013] 85 parts of the silicate-based glass

[0014] Four portions of the siloxane nanoparticles

[0015] Three parts of the zirconium oxide nanoparticles

[0016] Five portions of the carbon nanotubes

[0017] One part of the surface modifier.

[0018] Furthermore, the proportions are calculated as follows:

[0019] Siloxane nanoparticle ratio = B x 1

[0020] Zirconia nanoparticle ratio = B x 2

[0021] Carbon nanotube ratio = B x 3

[0022] Surface modifier ratio = B x 4

[0023] Where: B represents the proportion of silicate-based glass; X1, X2, X3, and X4 represent the relative proportions of siloxane nanoparticles, zirconium oxide nanoparticles, carbon nanotubes, and surface modifiers, respectively.

[0024] Preferably, the surface modifier is one or more of 3(methoxy)propyltrimethoxysilane, octylphenol polyoxyethylene ether, octadecyltrimethylammonium chloride, and hydroxypropyltrimethoxysilane.

[0025] The method for preparing the nanomaterial-reinforced cured glass composite material of the present invention includes the following steps:

[0026] S1: Process silicate-based glass into powder for later use;

[0027] S2: Dissolve silicate-based glass in water and add a surface modifier to achieve uniform fusion;

[0028] S3: Disperse siloxane nanoparticles by ultrasonic treatment in water.

[0029] S4: Slowly add the aqueous solution of siloxane nanoparticles dispersed in step S3 to the mixture in step S2 and stir until homogeneous;

[0030] S5: Add zirconium oxide nanoparticles and carbon nanotubes using the methods in steps S3 and S4;

[0031] S6: Place the mixture from step S5 into a ceramic ball mill to disperse the mixture by ball milling;

[0032] S7: The ball-milled material is filtered and dried to obtain the nanomaterial-reinforced cured glass composite material.

[0033] Preferably, the power of the ultrasonic treatment dispersion is between 70 and 90 W.

[0034] Application of the nanomaterial-reinforced cured glass composite material prepared by the method of the present invention: The nanomaterial-reinforced cured glass composite material is coated and cured on the inner wall of the furnace tail gas pipe.

[0035] Specifically, the nanomaterial-reinforced cured glass composite material is mixed with water to form a paste. The paste is then coated onto the inner wall of the furnace exhaust pipe. The furnace exhaust pipe is then heated using high-frequency heating to burn off and melt the nanomaterial-reinforced cured glass composite material, which is then cooled and solidified onto the inner wall of the furnace exhaust pipe.

[0036] The beneficial effects of this invention are:

[0037] This invention relates to a nanomaterial-reinforced cured glass composite material, which, compared with existing technologies, has the following technical advantages:

[0038] Enhanced corrosion resistance: By employing a formulation of silicate-based glass, siloxane nanoparticles, zirconium oxide nanoparticles, carbon nanotubes, and surface modifiers, the material exhibits excellent corrosion resistance, enabling it to withstand erosion in high-temperature, high-pressure, and acidic / alkaline environments.

[0039] Advantages of surface modification: The addition of surface modifiers gives the inner metal surface of the exhaust pipe excellent smoothness, hydrophobicity, and thermal shock resistance. This helps prevent the deposition and adhesion of volatile radionuclides within the pipe.

[0040] Cleaning is easy to achieve: It has good hydrophobicity, and even if a small amount of volatile nuclide adheres, it can be completely cleaned by high-pressure water jet rinsing. This improves the convenience and thoroughness of cleaning.

[0041] Environmental applications: The application of this material can effectively solve the problem of exhaust pipe blockage, reduce the emission of harmful substances, and meet the requirements of environmental protection and safe production.

[0042] Material customizability: By adopting a proportioning calculation method, the proportion of each component can be flexibly controlled to adapt to different process conditions and changes in exhaust gas composition, thereby improving the customizability and applicability of the material.

[0043] This innovative technical solution not only overcomes the limitations of existing exhaust pipe materials but also improves the reliability and stability of the glass curing process. Detailed Implementation

[0044] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions herein are used to explain the present invention, but are not intended to limit the present invention.

[0045] The nanomaterial-reinforced cured glass composite material of the present invention comprises, by weight, the following components:

[0046] 70-90 parts silicate-based glass; possesses high-temperature stability and corrosion resistance;

[0047] 3-5 parts of siloxane nanoparticles; improve surface smoothness and increase hydrophobicity;

[0048] 2-3 parts of zirconia nanoparticles; improve hardness and heat resistance;

[0049] 4-6 parts of carbon nanotubes; to increase the mechanical properties and strength of the material.

[0050] 0.1 to 1 part of surface modifier. This ensures that the nanoparticles are uniformly dispersed in the matrix material, enhancing the material's mechanical properties.

[0051] Preferred, by weight:

[0052] 85 parts of the silicate-based glass

[0053] Four portions of the siloxane nanoparticles

[0054] Three parts of the zirconium oxide nanoparticles

[0055] Five portions of the carbon nanotubes

[0056] One part of the surface modifier.

[0057] Furthermore, the proportions are calculated as follows:

[0058] Siloxane nanoparticle ratio = B x 1

[0059] Zirconia nanoparticle ratio = B x 2

[0060] Carbon nanotube ratio = B x 3

[0061] Surface modifier ratio = B x 4

[0062] Where: B represents the proportion of silicate-based glass; X1, X2, X3, and X4 represent the relative proportions of siloxane nanoparticles, zirconium oxide nanoparticles, carbon nanotubes, and surface modifiers, respectively.

[0063] Preferably, the surface modifier is one or more of 3(methoxy)propyltrimethoxysilane, octylphenol polyoxyethylene ether, octadecyltrimethylammonium chloride, and hydroxypropyltrimethoxysilane.

[0064] 3-(methyloxy)propyltrimethoxysilane (MPS) can improve the affinity of nanoparticles to silicate-based glass, improve dispersibility, and enhance the mechanical properties of the material.

[0065] Octylphenol polyoxyethylene ether (OP-10) can improve the dispersion of nanoparticles in silicate-based glass and promote the uniform distribution of nanoparticles.

[0066] Octadecyltrimethylammonium chloride (CTAC), when selected according to specific needs, can improve the compatibility of nanoparticles with silicate-based glass.

[0067] Hydroxypropyltrimethoxysilane (KH-550) can increase the hydrophilicity of materials and help improve their hydrophobicity.

[0068] The method for preparing the nanomaterial-reinforced cured glass composite material of the present invention includes the following steps:

[0069] S1: Process silicate-based glass into powder for later use;

[0070] S2: Dissolve silicate-based glass in water and add a surface modifier to achieve uniform fusion;

[0071] S3: Disperse siloxane nanoparticles by ultrasonic treatment in water.

[0072] S4: Slowly add the aqueous solution of siloxane nanoparticles dispersed in step S3 to the mixture in step S2 and stir until homogeneous;

[0073] S5: Add zirconium oxide nanoparticles and carbon nanotubes using the methods in steps S3 and S4;

[0074] S6: Place the mixture from step S5 into a ceramic ball mill to disperse the mixture by ball milling;

[0075] S7: The ball-milled material is filtered and dried to obtain the nanomaterial-reinforced cured glass composite material.

[0076] Preferably, the power of the ultrasonic treatment dispersion is between 70 and 90 W.

[0077] Application of the nanomaterial-reinforced cured glass composite material prepared by the method of the present invention: The nanomaterial-reinforced cured glass composite material is coated and cured on the inner wall of the furnace tail gas pipe.

[0078] Specifically, the nanomaterial-reinforced cured glass composite material is mixed with water to form a paste. The paste is then coated onto the inner wall of the furnace exhaust pipe. The furnace exhaust pipe is then heated using high-frequency heating to burn off and melt the nanomaterial-reinforced cured glass composite material, which is then cooled and solidified onto the inner wall of the furnace exhaust pipe.

[0079] Example 1:

[0080] Ingredients and formula:

[0081] Silicate-based glass: 85 parts

[0082] Siloxane nanoparticles: 4 parts

[0083] Zirconia nanoparticles: 3 parts

[0084] Carbon nanotubes: 5 parts

[0085] Surface modifier: 1 part (using 3(methoxy)propyltrimethoxysilane)

[0086] Process parameters:

[0087] 1. Ultrasonic processing parameters (step S3): Ultrasonic power: 80W; Processing time: 30 minutes

[0088] 2. Ball milling and dispersion parameters (step S6): Ball milling time: 6 hours; Ceramic ball mill media: zirconia balls.

[0089] 3. Coating and curing parameters: Drying temperature after coating: 120℃; High-frequency heating temperature rise: 1200℃; Cooling and curing time: 4 hours;

[0090] Performance testing:

[0091] Compressive strength test:

[0092] Sample size: Standard cylinder

[0093] Testing machine: Universal testing machine

[0094] Loading rate: 1mm / min

[0095] Bending strength test:

[0096] Sample size: rectangular beam

[0097] Testing machine: Bending testing machine

[0098] Support-to-span ratio: 3:1

[0099] Loading rate: 5mm / min

[0100] Hardness test:

[0101] Hardness tester: Vickers hardness tester

[0102] Load: 10kg

[0103] Test time: 15 seconds

[0104] Density test:

[0105] Densitometer: Specific Gravity Bottle Method

[0106] Test temperature: 25℃

[0107] Thermal expansion coefficient test:

[0108] thermal expansion meter: thermal expansion instrument

[0109] Test range: 25-300℃

[0110] Heating rate: 10℃ / min

[0111] The test results are shown in the table below:

[0112] Performance parameters Test methods Test Results compressive strength ASTM C39 90MPa Bending strength ASTM C1161 85MPa Hardness (Vickers) ASTM E384 550HV density ASTM D792 <![CDATA[2.2g / cm 3 ]]> coefficient of thermal expansion ASTM E831 8.5x10^-6 / ℃

[0113] Example 2:

[0114] Ingredients and formula:

[0115] Silicate-based glass: 80 parts

[0116] Siloxane nanoparticles: 3.5 parts

[0117] Zirconia nanoparticles: 2.5 parts

[0118] Carbon nanotubes: 6 parts

[0119] Surface modifier: 0.5 parts (using octylphenol polyoxyethylene ether)

[0120] Process parameters:

[0121] 1. Ultrasonic processing parameters (step S3): Ultrasonic power: 75W; Processing time: 25 minutes

[0122] 2. Ball milling and dispersion parameters (step S6): Ball milling time: 5 hours; Ceramic ball mill media: zirconia balls.

[0123] 3. Coating and curing parameters: Drying temperature after coating: 110℃; High-frequency heating temperature rise: 1800℃; Cooling and curing time: 3.5 hours;

[0124] Performance testing:

[0125] Compressive strength test:

[0126] Sample size: Standard cylinder

[0127] Testing machine: Universal testing machine

[0128] Loading rate: 1mm / min

[0129] Bending strength test:

[0130] Sample size: rectangular beam

[0131] Testing machine: Bending testing machine

[0132] Support-to-span ratio: 3:1

[0133] Loading rate: 5mm / min

[0134] Hardness test:

[0135] Hardness tester: Vickers hardness tester

[0136] Load: 10kg

[0137] Test time: 15 seconds

[0138] Density test:

[0139] Densitometer: Specific Gravity Bottle Method

[0140] Test temperature: 25℃

[0141] Thermal expansion coefficient test:

[0142] thermal expansion meter: thermal expansion instrument

[0143] Test range: 25-300℃

[0144] Heating rate: 10℃ / min

[0145] The test results are shown in the table below:

[0146] Performance parameters Test methods Test Results compressive strength ASTM C39 95MPa Bending strength ASTM C1161 80MPa Hardness (Vickers) ASTM E384 530HV density ASTM D792 <![CDATA[2.1g / cm 3 ]]> coefficient of thermal expansion ASTM E831 9.0x10^-6 / ℃

[0147] Example 3:

[0148] Ingredients and formula:

[0149] Silicate-based glass: 88 pieces

[0150] Siloxane nanoparticles: 3.8 parts

[0151] Zirconia nanoparticles: 2.8 parts

[0152] Carbon nanotubes: 4.5 parts

[0153] Surface modifier: 0.9 parts (using octadecyltrimethylammonium chloride)

[0154] Process parameters:

[0155] 1. Ultrasonic processing parameters (step S3): Ultrasonic power: 90W; Processing time: 35 minutes

[0156] 2. Ball milling and dispersion parameters (step S6): Ball milling time: 7 hours; Ceramic ball mill media: zirconia balls.

[0157] 3. Coating and curing parameters: Drying temperature after coating: 130℃; High-frequency heating temperature rise: 1220℃; Cooling and curing time: 5 hours

[0158] Performance testing:

[0159] Compressive strength test:

[0160] Sample size: Standard cylinder

[0161] Testing machine: Universal testing machine

[0162] Loading rate: 1mm / min

[0163] Bending strength test:

[0164] Sample size: rectangular beam

[0165] Testing machine: Bending testing machine

[0166] Support-to-span ratio: 3:1

[0167] Loading rate: 5mm / min

[0168] Hardness test:

[0169] Hardness tester: Vickers hardness tester

[0170] Load: 10kg

[0171] Test time: 15 seconds

[0172] Density test:

[0173] Densitometer: Specific Gravity Bottle Method

[0174] Test temperature: 25℃

[0175] Thermal expansion coefficient test:

[0176] thermal expansion meter: thermal expansion instrument

[0177] Test range: 25-300℃

[0178] Heating rate: 10℃ / min

[0179] The test results are shown in the table below:

[0180] Performance parameters Test methods Test Results compressive strength ASTM C39 88MPa Bending strength ASTM C1161 75MPa Hardness (Vickers) ASTM E384 540HV density ASTM D792 <![CDATA[2.3g / cm 3 ]]> coefficient of thermal expansion ASTM E831 8.8x10^-6 / ℃

[0181] In all the above embodiments, the prepared powdered material was melted and cast into the required test shape before testing. The standard methods for testing each performance item in the above test results were carried out in accordance with the relevant ASTM (American Society for Testing and Materials) standards to ensure the comparability and accuracy of the test results.

[0182] The technical solutions of the present invention are not limited to the specific embodiments described above. Any technical modifications made in accordance with the technical solutions of the present invention fall within the protection scope of the present invention.

Claims

1. A nanomaterial-reinforced cured glass composite material, characterized in that: By weight, it includes the following components: 70-90 parts of silicate-based glass 3-5 parts of siloxane nanoparticles 2-3 parts of zirconium oxide nanoparticles 4-6 parts of carbon nanotubes 0.1 to 1 part of surface modifier; The surface modifier is one or more of 3-(methoxy)propyltrimethoxysilane, octylphenol polyoxyethylene ether, octadecyltrimethylammonium chloride, and hydroxypropyltrimethoxysilane.

2. The nanomaterial-reinforced cured glass composite material according to claim 1, characterized in that: By weight: 85 parts of the silicate-based glass Four portions of the siloxane nanoparticles Three parts of the zirconium oxide nanoparticles Five portions of the carbon nanotubes One part of the surface modifier.

3. A method for preparing a nanomaterial-reinforced cured glass composite material as described in claim 1, characterized in that, Includes the following steps: S1: Process silicate-based glass into powder for later use; S2: Dissolve silicate-based glass in water and add a surface modifier to achieve uniform fusion; S3: Disperse siloxane nanoparticles by ultrasonic treatment in water. S4: Slowly add the aqueous solution of siloxane nanoparticles dispersed in step S3 to the mixture in step S2 and stir until homogeneous; S5: Add zirconium oxide nanoparticles and carbon nanotubes using the methods in steps S3 and S4; S6: Place the mixture from step S5 into a ceramic ball mill to disperse the mixture by ball milling; S7: The ball-milled material is filtered and dried to obtain the nanomaterial-reinforced cured glass composite material.

4. The method for preparing the nanomaterial-reinforced cured glass composite material according to claim 3, characterized in that: The power of the ultrasonic treatment dispersion is between 70 and 90W.

5. An application of a nanomaterial-reinforced cured glass composite material prepared by the method as described in claim 3, characterized in that: Nanomaterial-enhanced cured glass composite material is coated and cured onto the inner wall of the furnace exhaust pipe.

6. The application of the nanomaterial-reinforced cured glass composite material according to claim 5, characterized in that: The nanomaterial-reinforced cured glass composite material is mixed with water to form a paste. The paste is then coated onto the inner wall of the furnace exhaust pipe. The furnace exhaust pipe is then heated using high-frequency heating to burn off and melt the nanomaterial-reinforced cured glass composite material, which is then cooled and solidified onto the inner wall of the furnace exhaust pipe.