CN115180923B - Method for preparing ceramic tile with fine surface by taking recycled waste as raw material - Google Patents

Method for preparing ceramic tile with fine surface by taking recycled waste as raw material Download PDF

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CN115180923B
CN115180923B CN202210999814.5A CN202210999814A CN115180923B CN 115180923 B CN115180923 B CN 115180923B CN 202210999814 A CN202210999814 A CN 202210999814A CN 115180923 B CN115180923 B CN 115180923B
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parts
stirring
ceramic tile
mixing
fully
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CN115180923A (en
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麦文英
王礼
叶建明
黄大泱
丁海洋
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Guangdong Oubrunei Ceramics Co ltd
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Guangdong Oubrunei Ceramics Co ltd
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    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/13—Compounding ingredients
    • C04B33/132—Waste materials; Refuse; Residues
    • C04B33/1324—Recycled material, e.g. tile dust, stone waste, spent refractory material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
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    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/46—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with organic materials
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Abstract

The invention discloses a method for preparing a ceramic tile with a fine surface by taking recycled waste as a raw material, which comprises the following steps: firstly, feeding the ceramic tile waste into 4-8 times of 6-10% hydrochloric acid solution by mass, stirring for reaction at 55-65 ℃ at a stirring speed of 350-450r/min for 20-30min, washing and drying after stirring; then adding the mixture into 5-9 times of modifying treatment agent for ultrasonic dispersion for 20-30min. According to the product, the ceramic tile waste is treated and activated by hydrochloric acid solution, and then is modified by the modifying treatment agent, the optimized waste can be cooperatively combined with mullite, burnt talc and modified wollastonite, and the prepared ceramic tile has excellent fine and smooth feeling, low heat conductivity coefficient, no ice-cold feeling when being touched and high-efficiency cooperative effect performance.

Description

Method for preparing ceramic tile with fine surface by taking recycled waste as raw material
Technical Field
The invention relates to the technical field of ceramic tiles, in particular to a method for preparing a ceramic tile with a fine surface by taking recycled waste as a raw material.
Background
The ceramic tile is made up by using refractory metal oxide and semimetal oxide through the processes of grinding, mixing, pressing, glazing and sintering, and is a kind of acid-and alkali-resistant porcelain or stone material for building or decorative material, so-called ceramic tile.
The ceramic tile prepared by the prior art adopts waste materials, is easy to cause a rough phenomenon on the surface of the ceramic tile, is not smooth enough, and reduces the use efficiency of the ceramic tile.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a method for preparing a ceramic tile with a fine surface by taking recycled waste as a raw material, so as to solve the problems in the background technology.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the invention provides a method for preparing a ceramic tile with a fine surface by taking recycled waste as a raw material, which comprises the following steps:
the method comprises the following steps: feeding the ceramic tile waste into 4-8 times of 6-10% hydrochloric acid solution by mass, stirring for reaction at 55-65 ℃ at a stirring speed of 350-450r/min for 20-30min, washing with water, and drying;
step two: then adding the mixture into 5-9 times of a modifying treatment agent, performing ultrasonic dispersion for 20-30min at the ultrasonic power of 400-500W, and performing water washing and drying after the ultrasonic treatment to obtain pretreated ceramic tile waste;
step three: adding 35-45 parts of the pretreated ceramic tile waste, 5-10 parts of mullite, 2-5 parts of calcined talc and 4-6 parts of modified wollastonite into a stirrer to be fully mixed to obtain a premix;
step four: then the ceramic tile is sent into a mould for compression molding, then is sintered for 1 to 2 hours at the temperature of 1100 to 1200 ℃, and then is polished and waxed to obtain the ceramic tile.
Preferably, the preparation method of the modified treating agent comprises the following steps:
s01: adding 10-15 parts of graphene into 20-30 parts of deionized water, then adding hydrochloric acid to adjust the pH value to 4.5, then adding 1-5 parts of chitosan and 0.2-0.6 part of lanthanum sulfate, and fully stirring and mixing to obtain a first graphene solution;
s02: adding the carbon nano tube into 2-3 times of nitric acid solution, stirring and dispersing fully, washing with water, drying, and mixing with nano silicon dioxide according to the weight ratio of 3;
s03: adding 5-10 parts of carbon nano tube complexing agent into 10-20 parts of sodium alginate solution, then adding 2-6 parts of alkyl sodium sulfonate and 1-3 parts of silane coupling agent, and stirring and mixing fully to obtain carbon nano tube composite second liquid;
s04: and (3) fully stirring and mixing the carbon nanotube composite second liquid and the graphene first liquid according to the weight ratio of 1.
Preferably, the mass fraction of the nitric acid solution is 5-10%; the mass fraction of the sodium alginate solution is 8-12%.
Preferably, the silane coupling agent is a coupling agent KH560.
Preferably, the rotation speed of the S03 for stirring and mixing fully is 600-800r/min, and the stirring time is 20-30min.
The inventor finds that the product has excellent fine and smooth performance, and meanwhile, the product has excellent low heat conductivity coefficient and does not feel cool;
the inventor of the invention finds that the thermal conductivity coefficient of a product without adding the modifying treatment agent is obviously improved, the product is rough and not fine, in addition, the carbon nano tube complexing agent is not added into the modifying treatment agent, and the nano silicon dioxide is not added into the carbon nano tube complexing agent, so that the thermal conductivity coefficient of the product is deteriorated.
Preferably, the preparation method of the modified wollastonite comprises the following steps:
s11: adding 5-10 parts of wollastonite into 35-45 parts of ethanol solvent for uniform dispersion to obtain wollastonite dispersion liquid;
s12: 4-8 parts of silica sol, 3-6 parts of sodium dodecyl benzene sulfonate solution and 10-15 parts of deionized water are stirred and mixed fully, added into wollastonite dispersion liquid, stirred and reacted, washed and dried to obtain the modified wollastonite.
The inventor of the invention finds that the modified wollastonite is not added, the heat conductivity coefficient of the product tends to be poor, the modified wollastonite can generate a synergistic effect with the waste ceramic tile treated by the modifying treatment agent, the heat conductivity coefficient improvement effect of the product is enhanced, the problem of cool touch of the product is solved, and the product is fine and smooth and has good performance.
Preferably, the rotation speed of the stirring reaction treatment is 300-350r/min, the stirring time is 20-30min, and the stirring temperature is 55-65 ℃.
Preferably, the mass fraction of the sodium dodecyl benzene sulfonate solution is 10-15%.
Preferably, the rotation speed for fully stirring and mixing in the third step is 1000-1500r/min, and the stirring time is 30-40min.
Preferably, the pressure of the compression molding is 15-20MPa, and the compression time is 20-30min.
Compared with the prior art, the invention has the following beneficial effects:
according to the product disclosed by the invention, the ceramic tile waste is treated and activated by the hydrochloric acid solution, and then is modified by the modification treatment agent, the optimized waste can be cooperatively combined with mullite, burnt talc and modified wollastonite, and the prepared ceramic tile has excellent fine and smooth feeling, low heat conductivity coefficient, no ice-cold feeling in touch and high-efficiency cooperative effect performance.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to specific embodiments, 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.
The method for preparing the ceramic tile with the fine surface by taking the recycled waste as the raw material comprises the following steps:
the method comprises the following steps: firstly, feeding the ceramic tile waste into 4-8 times of 6-10% hydrochloric acid solution by mass, stirring for reaction at 55-65 ℃ at a stirring speed of 350-450r/min for 20-30min, washing and drying after stirring;
step two: then adding the mixture into 5-9 times of a modifying treatment agent, performing ultrasonic dispersion for 20-30min, wherein the ultrasonic power is 400-500W, and performing ultrasonic treatment, water washing and drying to obtain pretreated ceramic tile waste;
step three: adding 35-45 parts of pretreated ceramic tile waste, 5-10 parts of mullite, 2-5 parts of calcined talc and 4-6 parts of modified wollastonite into a stirrer, and fully mixing to obtain a premix;
step four: then the ceramic tile is sent into a mould for compression molding, then is sintered for 1-2 hours at 1100-1200 ℃, and then is polished and waxed to obtain the ceramic tile.
The preparation method of the modification treatment agent of the embodiment comprises the following steps:
s01: adding 10-15 parts of graphene into 20-30 parts of deionized water, then adding hydrochloric acid to adjust the pH value to 4.5, then adding 1-5 parts of chitosan and 0.2-0.6 part of lanthanum sulfate, and fully stirring and mixing to obtain a first graphene solution;
s02: adding the carbon nano tube into 2-3 times of nitric acid solution, stirring and fully dispersing, washing with water, drying, and mixing with nano silicon dioxide according to the weight ratio of 3;
s03: adding 5-10 parts of carbon nanotube complexing agent into 10-20 parts of sodium alginate solution, then adding 2-6 parts of alkyl sodium sulfonate and 1-3 parts of silane coupling agent, and fully stirring and mixing to obtain carbon nanotube composite second liquid;
s04: and (3) fully stirring and mixing the carbon nanotube composite second liquid and the graphene first liquid according to the weight ratio of 1.
The mass fraction of the nitric acid solution in the embodiment is 5-10%; the mass fraction of the sodium alginate solution is 8-12%.
The silane coupling agent of the present example is a coupling agent KH560.
In the embodiment, the rotation speed of the S03 for stirring and mixing is 600-800r/min, and the stirring time is 20-30min.
The preparation method of the modified wollastonite in the embodiment comprises the following steps:
s11: adding 5-10 parts of wollastonite into 35-45 parts of ethanol solvent for uniform dispersion to obtain wollastonite dispersion liquid;
s12: 4-8 parts of silica sol, 3-6 parts of sodium dodecyl benzene sulfonate solution and 10-15 parts of deionized water are stirred and mixed fully, added into wollastonite dispersion liquid, stirred and reacted, washed and dried to obtain the modified wollastonite.
The rotation speed of the stirring reaction treatment in the embodiment is 300-350r/min, the stirring time is 20-30min, and the stirring temperature is 55-65 ℃.
The mass fraction of the sodium dodecylbenzenesulfonate solution in this example is 10-15%.
In the third step of this embodiment, the rotation speed for sufficient stirring and mixing is 1000-1500r/min, and the stirring time is 30-40min.
The pressure of the compression molding of the embodiment is 15-20MPa, and the compression time is 20-30min.
Example 1.
The method for preparing the ceramic tile with the fine surface by taking the recycled waste as the raw material comprises the following steps:
the method comprises the following steps: feeding the ceramic tile waste into 4 times of hydrochloric acid solution with the mass fraction of 6% for stirring reaction treatment, wherein the stirring reaction temperature is 55 ℃, the stirring rotation speed is 350r/min, the stirring time is 20min, and after stirring, washing and drying;
step two: then adding the mixture into 5 times of a modifying treatment agent, performing ultrasonic dispersion for 20min, wherein the ultrasonic power is 400W, and performing ultrasonic treatment, washing and drying to obtain pretreated ceramic tile waste;
step three: adding 35 parts of the pretreated ceramic tile waste, 5 parts of mullite, 2 parts of calcined talc and 4 parts of modified wollastonite into a stirrer, and fully mixing to obtain a premix;
step four: then the ceramic tile is sent into a mould for compression molding, then is sintered for 1 hour at 1100 ℃, and then is polished and waxed to obtain the ceramic tile.
The preparation method of the modifying treatment agent of the embodiment comprises the following steps:
s01: adding 10 parts of graphene into 20 parts of deionized water, then adding hydrochloric acid to adjust the pH value to 4.5, then adding 1 part of chitosan and 0.2 part of lanthanum sulfate, and stirring and mixing fully to obtain a first graphene solution;
s02: adding the carbon nano tube into 2 times of nitric acid solution, stirring and fully dispersing, washing with water, drying, and mixing with nano silicon dioxide according to the weight ratio of 3;
s03: adding 5 parts of carbon nano tube complexing agent into 10 parts of sodium alginate solution, then adding 2 parts of alkyl sodium sulfonate and 1 part of silane coupling agent, and fully stirring and mixing to obtain carbon nano tube composite second liquid;
s04: and (3) fully stirring and mixing the carbon nanotube composite second liquid and the graphene first liquid according to the weight ratio of 1.
The mass fraction of the nitric acid solution in this example was 5%; the mass fraction of the sodium alginate solution is 8%.
The silane coupling agent of the present example is a coupling agent KH560.
In the embodiment, the rotation speed for stirring and mixing the S03 fully is 600r/min, and the stirring time is 20min.
The preparation method of the modified wollastonite in the embodiment comprises the following steps:
s11: adding 5 parts of wollastonite into 35 parts of ethanol solvent, and uniformly dispersing to obtain wollastonite dispersion liquid;
s12: 4 parts of silica sol, 3 parts of sodium dodecyl benzene sulfonate solution and 10 parts of deionized water are stirred and mixed fully, added into wollastonite dispersion liquid, stirred and reacted, washed and dried to obtain the modified wollastonite.
In the present example, the rotation speed of the stirring reaction treatment was 300r/min, the stirring time was 20min, and the stirring temperature was 55 ℃.
The mass fraction of the sodium dodecylbenzenesulfonate solution in this example was 10%.
In the third step of this example, the rotation speed for sufficient stirring and mixing is 1000r/min, and the stirring time is 30min.
The pressure for press molding in this example was 15MPa, and the pressing time was 20min.
Example 2.
The method for preparing the ceramic tile with the fine surface by taking the recycled waste as the raw material comprises the following steps:
the method comprises the following steps: firstly, feeding the ceramic tile waste into 8 times of hydrochloric acid solution with the mass fraction of 10%, stirring and reacting at 65 ℃, the stirring speed of 450r/min for 30min, and washing and drying after stirring;
step two: then adding the mixture into 9 times of a modifying treatment agent, performing ultrasonic dispersion for 30min, wherein the ultrasonic power is 500W, and performing water washing and drying after the ultrasonic treatment to obtain pretreated ceramic tile waste;
step three: adding 45 parts of the pretreated ceramic tile waste, 10 parts of mullite, 5 parts of calcined talc and 6 parts of modified wollastonite into a stirrer, and fully mixing to obtain a premix;
step four: then the ceramic tile is sent into a mould for compression molding, then is sintered for 2 hours at 1200 ℃, and then is polished and waxed to obtain the ceramic tile.
The preparation method of the modification treatment agent of the embodiment comprises the following steps:
s01: adding 15 parts of graphene into 30 parts of deionized water, then adding hydrochloric acid to adjust the pH value to 4.5, then adding 5 parts of chitosan and 0.6 part of lanthanum sulfate, and stirring and mixing fully to obtain a first graphene solution;
s02: adding the carbon nano tube into 3 times of nitric acid solution, stirring and fully dispersing, washing with water, drying, and then mixing with nano silicon dioxide according to the weight ratio of 3;
s03: adding 10 parts of carbon nano tube complexing agent into 20 parts of sodium alginate solution, then adding 6 parts of alkyl sodium sulfonate and 3 parts of silane coupling agent, and fully stirring and mixing to obtain carbon nano tube composite second liquid;
s04: and (3) fully stirring and mixing the carbon nanotube composite second liquid and the graphene first liquid according to the weight ratio of 1.
The mass fraction of the nitric acid solution in this example was 10%; the mass fraction of the sodium alginate solution is 12%.
The silane coupling agent of the present example is a coupling agent KH560.
In the embodiment, the rotation speed of the S03 for sufficient stirring and mixing is 800r/min, and the stirring time is 30min.
The preparation method of the modified wollastonite in the embodiment comprises the following steps:
s11: adding 10 parts of wollastonite into 45 parts of ethanol solvent, and uniformly dispersing to obtain wollastonite dispersion liquid;
s12: and (3) stirring and mixing 8 parts of silica sol, 6 parts of sodium dodecyl benzene sulfonate solution and 15 parts of deionized water fully, adding the mixture into the wollastonite dispersion liquid, stirring for reaction treatment, washing with water, and drying to obtain the modified wollastonite.
In the present example, the rotation speed of the stirring reaction treatment was 350r/min, the stirring time was 30min, and the stirring temperature was 65 ℃.
The mass fraction of the sodium dodecylbenzenesulfonate solution in this example was 15%.
In the third step of this example, the rotation speed for sufficient stirring and mixing is 1500r/min, and the stirring time is 40min.
The pressure for press molding in this example was 20MPa, and the pressing time was 30min.
Example 3.
The method for preparing the ceramic tile with the fine surface by taking the recycled waste as the raw material comprises the following steps:
the method comprises the following steps: firstly, feeding the ceramic tile waste into 6 times of hydrochloric acid solution with the mass fraction of 8%, stirring and reacting at the temperature of 60 ℃, the stirring speed of 400r/min for 25min, and finishing stirring, washing and drying;
step two: then adding the mixture into a 7-time modifying treatment agent, performing ultrasonic dispersion for 25min, wherein the ultrasonic power is 450W, and performing ultrasonic treatment, washing and drying to obtain pretreated ceramic tile waste;
step three: adding 40 parts of the pretreated ceramic tile waste, 7.5 parts of mullite, 3.5 parts of calcined talc and 5 parts of modified wollastonite into a stirrer, and fully mixing to obtain a premix;
step four: then the ceramic tile is sent into a mould for compression molding, then is sintered for 1.5 hours at 1150 ℃, and then is polished and waxed to obtain the ceramic tile.
The preparation method of the modifying treatment agent of the embodiment comprises the following steps:
s01: adding 12.5 parts of graphene into 25 parts of deionized water, then adding hydrochloric acid to adjust the pH value to 4.5, then adding 3 parts of chitosan and 0.4 part of lanthanum sulfate, and fully stirring and mixing to obtain a first graphene solution;
s02: adding the carbon nano tube into 2.5 times of nitric acid solution, stirring and dispersing fully, washing with water, drying, and mixing with nano silicon dioxide according to the weight ratio of 3;
s03: adding 7.5 parts of carbon nano tube complexing agent into 15 parts of sodium alginate solution, then adding 4 parts of alkyl sodium sulfonate and 2 parts of silane coupling agent, and fully stirring and mixing to obtain carbon nano tube composite second liquid;
s04: and (3) fully stirring and mixing the carbon nanotube composite second liquid and the graphene first liquid according to the weight ratio of 1.
The mass fraction of the nitric acid solution in this example was 7.5%; the mass fraction of the sodium alginate solution is 10%.
The silane coupling agent of the present example is a coupling agent KH560.
In the present example, the rotation speed for sufficiently stirring and mixing S03 was 700r/min, and the stirring time was 25min.
The preparation method of the modified wollastonite in the embodiment comprises the following steps:
s11: adding 7.5 parts of wollastonite into 40 parts of ethanol solvent, and uniformly dispersing to obtain wollastonite dispersion liquid;
s12: and (3) stirring and mixing 6 parts of silica sol, 4.5 parts of sodium dodecyl benzene sulfonate solution and 12.5 parts of deionized water fully, adding the mixture into wollastonite dispersion liquid, stirring for reaction treatment, washing with water, and drying to obtain the modified wollastonite.
The rotation speed of the stirring reaction treatment in this example was 320r/min, the stirring time was 25min, and the stirring temperature was 60 ℃.
The mass fraction of the sodium dodecylbenzenesulfonate solution in this example was 12.5%.
In the third step of this embodiment, the rotation speed for sufficient stirring and mixing is 1250r/min, and the stirring time is 35min.
The pressure for press molding in this example was 17.5MPa, and the pressing time was 25min.
Comparative example 1.
Unlike example 3, no modifying treatment was added.
Comparative example 2.
The difference from the example 3 is that the carbon nanotube complexing agent is not added into the modification treatment agent.
Comparative example 3.
The difference from example 3 is that no nano-silica is added to the carbon nanotube composite.
Comparative example 4.
The difference from example 3 is that no modified wollastonite was added.
Comparative example 5.
The difference from example 3 is that wollastonite was used instead of the modified wollastonite.
Comparative example 6.
The difference from example 3 is that the sodium dodecylbenzenesulfonate solution is not added in the modification of the modified wollastonite.
Comparative example 7.
In contrast to example 3, no calcined talc was added.
The results of the performance measurements of examples 1 to 3 and comparative examples 1 to 7 are as follows
Figure 430447DEST_PATH_IMAGE001
From examples 1-3 and comparative examples 1-7, the product of example 3 of the present invention has excellent fine and smooth properties, and at the same time, the product of the present invention has excellent thermal conductivity and low thermal conductivity, and does not feel cool;
it can be seen from comparative examples 1-3 that the thermal conductivity of the product without the addition of the modifying treatment agent is significantly improved, and the product is rough and not fine, and in addition, the carbon nanotube complexing agent is not added to the modifying treatment agent, and the nano-silica is not added to the carbon nanotube complexing agent, so that the thermal conductivity of the product is deteriorated;
compared with the comparative examples 4-7, the modified wollastonite has no addition, the thermal conductivity coefficient of the product tends to be poor, the modified wollastonite can generate a synergistic effect with the waste ceramic tile treated by the modifying treatment agent, the improvement effect of the thermal conductivity coefficient of the product is enhanced, the problem of cool touch of the product is solved, and the product is fine and smooth and has good performance.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims (3)

1. A method for preparing ceramic tiles with fine surfaces by taking recycled waste as a raw material is characterized by comprising the following steps:
the method comprises the following steps: feeding the ceramic tile waste into 4-8 times of 6-10% hydrochloric acid solution by mass, stirring for reaction at 55-65 ℃ at a stirring speed of 350-450r/min for 20-30min, washing with water, and drying;
step two: then adding the mixture into 5-9 times of a modifying treatment agent, performing ultrasonic dispersion for 20-30min, wherein the ultrasonic power is 400-500W, and performing ultrasonic treatment, water washing and drying to obtain pretreated ceramic tile waste;
step three: adding 35-45 parts of the pretreated ceramic tile waste, 5-10 parts of mullite, 2-5 parts of calcined talc and 4-6 parts of modified wollastonite into a stirrer to be fully mixed to obtain a premix;
step four: then the ceramic tile is sent into a mould for compression molding, then is sintered for 1 to 2 hours at the temperature of 1100 to 1200 ℃, and then is polished and waxed to obtain the ceramic tile;
the preparation method of the modified treating agent comprises the following steps:
s01: adding 10-15 parts of graphene into 20-30 parts of deionized water, then adding hydrochloric acid to adjust the pH value to 4.5, then adding 1-5 parts of chitosan and 0.2-0.6 part of lanthanum sulfate, and fully stirring and mixing to obtain a first graphene solution;
s02: adding the carbon nano tube into 2-3 times of nitric acid solution, stirring and dispersing fully, washing with water, drying, and mixing with nano silicon dioxide according to the weight ratio of 3;
s03: adding 5-10 parts of carbon nanotube complexing agent into 10-20 parts of sodium alginate solution, then adding 2-6 parts of alkyl sodium sulfonate and 1-3 parts of silane coupling agent, and fully stirring and mixing to obtain carbon nanotube composite second liquid;
s04: stirring and fully mixing the carbon nanotube composite second liquid and the graphene first liquid according to a weight ratio of 1;
the mass fraction of the nitric acid solution is 5-10%; the mass fraction of the sodium alginate solution is 8-12%;
the silane coupling agent is a coupling agent KH560;
the rotating speed of the S03 for stirring and mixing fully is 600-800r/min, and the stirring time is 20-30min;
the preparation method of the modified wollastonite comprises the following steps:
s11: adding 5-10 parts of wollastonite into 35-45 parts of ethanol solvent, and uniformly dispersing to obtain wollastonite dispersion liquid;
s12: stirring and fully mixing 4-8 parts of silica sol, 3-6 parts of sodium dodecyl benzene sulfonate solution and 10-15 parts of deionized water, wherein the mass fraction of the sodium dodecyl benzene sulfonate solution is 10-15%; adding the mixture into wollastonite dispersion liquid, and stirring for reaction at the rotation speed of 300-350r/min for 20-30min and the stirring temperature of 55-65 ℃; washing and drying to obtain the modified wollastonite.
2. The method for preparing fine surface tiles from recycled waste as a raw material according to claim 1, wherein the rotation speed of the stirrer in the third step is 1000-1500r/min, and the stirring time is 30-40min.
3. The method for preparing tiles with fine surfaces by using the recycled waste as the raw material according to claim 1, wherein the pressure of the press forming is 15-20MPa, and the pressing time is 20-30min.
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