CN114292060A - Super-hydrophobic soft porcelain flexible facing material and preparation method thereof - Google Patents
Super-hydrophobic soft porcelain flexible facing material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a super-hydrophobic soft porcelain flexible facing material and a preparation method thereof, wherein the method comprises the following steps of 1, preparing a composition of carbon black and a coupling agent; 2. adding the composition of the carbon black and the coupling agent in the step 1, the coupling agent, the film forming agent and the coupling agent into the silicone-acrylic emulsion to prepare a mixed emulsion; 3. preparing the rest materials to obtain mixed powder; 4. adding the mixed emulsion obtained in the step 2 into the mixed powder obtained in the step 3, and simultaneously adding water to prepare slurry; 5. and (3) feeding the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing. The prepared soft porcelain flexible facing material has excellent hydrophobic property and good mechanical property.
Description
Technical Field
The application relates to a building material, in particular to a green environment-friendly building material, and more particularly relates to a super-hydrophobic soft porcelain facing brick and a preparation method thereof.
Background
In building materials, the facing brick is an important branch, can be widely used for wall external facades and indoor walls to decorate buildings, and commonly comprises a stone imitation, a brick imitation and the like. The soft porcelain facing brick is a novel facing material, the preparation method is simple, the process is environment-friendly, the machinability is strong, the demand in the field of flexible facing materials is huge, and the soft porcelain facing brick can greatly improve the beauty and the grade of a building. However, since the soft porcelain facing tile is obtained by molding the water-based polymer emulsion and inorganic substances such as cement, soil, quartz sand or mineral powder, the system of the soft porcelain facing tile is complex, and fine gaps exist on the surface of the facing tile, so that water is easy to enter the interior of the tile body to permeate and show.
Most of the face bricks are applied to the outer vertical surfaces of walls and are easy to contact with moisture, but the moisture has larger polarity and is easy to peel off and replace organic matters and inorganic matters when permeating into the materials of the flexible face bricks, so that the mechanical property of the flexible face bricks is reduced, and the quality and the service life of the flexible face bricks made of soft porcelain are influenced.
The prior art has not been extensively studied with respect to the adverse effects of water on flexible tiles during use, and has revealed less specific solutions for how to achieve good hydrophobic properties in soft porcelain tiles. In the prior art, the invention patent application with the publication number of CN110790532A discloses a waterproof and anti-aging soft porcelain tile and a preparation method thereof, and particularly discloses a soft porcelain tile which comprises the following components in parts by weight or consists of the following components: 70-80 parts of inorganic powder; 10-20 parts of an adhesive; 1-5 parts of rubber powder; 1-3 parts of reinforcing fiber; 0.1-1 part of a surfactant; 30-35 parts of water. The organic system is formed by the adhesive and the rubber powder, so that the water resistance and the durability of the prepared soft ceramic tile are obviously enhanced. According to the scheme, the rubber powder is mainly prepared by using waste tire rubber powder as a raw material of the soft ceramic tile, the rubber powder and the adhesive are hydrophobic organic materials and are firmly combined to form a connecting material and a water-blocking layer together, and the water resistance and the toughness of the soft ceramic tile are improved. However, according to the scheme, the rubber powder is granular, the dispersion performance of the rubber powder to colloid is higher, certain hydrophobicity can be given to the facing brick only when better dispersion is achieved, and when the addition of the rubber powder is increased, the mechanical performance of the flexible facing brick is remarkably reduced, and the performance of hydrophobicity and mechanical strength is difficult to achieve.
The prior art publication No. CN108275961A discloses a method for manufacturing soft ceramic tiles and discloses a method for preparing soft porcelain, specifically a, soil and porcelain slag are mechanically crushed into powder; b. uniformly mixing 20-25 parts of the soil obtained in the step a, 9-12 parts of porcelain slag, 12-16 parts of calcium silicate, 10-13 parts of stone powder, 15-20 parts of white sand, 3-6 parts of inorganic toner, 2-5 parts of a waterproof agent, 1-3 parts of polypropylene short fibers and 0.5-1.5 parts of an antioxidant; c. adding 30-40 parts of water into the raw materials mixed in the step b, and stirring and mixing by using a stirrer until the raw materials are uniformly mixed; d. c, injecting the mixed raw materials in the step c into a mold for extrusion, and then sending into a drying room to obtain initial soft porcelain; e. and d, cooling the initial soft porcelain in the step d, and naturally curing for 8-12 days. In the process formula, 2-5 of waterproof agent is added, the waterproof agent is generally an organosilane compound or a fluorine-containing compound in the field of people, and the addition of the waterproof agent can disturb a soft porcelain raw material system, cannot obtain a good hydrophobic effect and can also influence the quality of a soft porcelain product.
In order to solve the problem that the soft porcelain in the prior art is difficult to have both hydrophobicity and quality, the invention creatively provides the soft porcelain facing brick which has good hydrophobicity and mechanical property.
Disclosure of Invention
The disclosure aims at the problem that soft porcelain materials, especially soft porcelain facing materials, in the prior art lack of hydrophobicity, and provides a soft porcelain facing brick with excellent hydrophobicity and a preparation method thereof.
One of the concepts of the present disclosure is to provide a soft porcelain flexible facing material, which has a formula of raw materials to ensure the system stability of the traditional soft porcelain material, reduce the influence of hydrophobic substances, such as water-proofing agents and organic colloidal particles, on the soft porcelain raw material system, and increase the mechanical properties of the soft porcelain.
Another concept of the present disclosure is also to provide a soft porcelain flexible finishing material, the surface of which has a fine nano-layer, the nano-layer is rough and uneven, and the soft porcelain material is endowed with excellent hydrophobicity by the lotus effect of the nano-layer;
another concept of the present disclosure is to provide a soft porcelain flexible facing material having a nano carbon material for improving the conductive property of the flexible facing material and assisting the molding of a fine nano film layer.
The other concept of the disclosure is to provide a soft porcelain flexible facing material, the proportion of the raw materials of the flexible facing material is reasonable, the film-forming agent is added into the flexible facing material, and the film-forming agent can form a film on the surface of the soft porcelain material comprehensively or locally during curing and forming.
The other concept of the disclosure is to provide a preparation method of the soft porcelain flexible facing material, wherein microwave heating, curing and forming are adopted in the preparation process, so that the curing efficiency is improved.
The other concept of the disclosure is to provide a preparation method of the soft ceramic flexible facing material, and in the curing of the soft ceramic flexible facing tile, the multi-stage microwave heating is adopted to change the surface performance of the soft ceramic material and improve the hydrophobicity of the soft ceramic flexible facing material.
The other concept of the disclosure is to provide a preparation method of the soft porcelain flexible facing material, which utilizes the electrodeless carbon material added in the soft porcelain raw material as the wave absorbing material, so that local high temperature exists in the interior of the flexible facing material, the solidification can be promoted, the film forming of the surface film forming agent can be promoted, the micro-nano structure film layer is obtained, and the hydrophobicity of the soft porcelain material is improved.
The soft porcelain flexible facing material comprises, by weight, 20-30 parts of silicone-acrylic emulsion, 1-3 parts of inorganic pigment, 5-30 parts of cement, 25-35 parts of quartz sand, 1-3 parts of a coupling agent, 2-5 parts of a film forming agent, 1-3 parts of carbon black and 2-15 parts of water.
Specifically, the silicone-acrylic emulsion has a higher glass transition temperature to meet the mechanical properties of the material, the inorganic material and the organic material are blended in the raw material, and the cured silicone-acrylic emulsion fixes the inorganic material to obtain the finishing material with certain toughness and flexibility.
The coupling agent is a silane coupling agent KH550 or a silane coupling agent KH 560;
furthermore, the coupling agent is added into the raw materials, the coupling agent can improve the interface effect between the silicone-acrylic emulsion and the inorganic material, so that the components in the raw materials are uniformly dispersed, and particularly, the color of the finally obtained flexible facing brick can be ensured to be uniform for the flexible facing brick colored by the raw materials.
Further, the inorganic pigment is obtained by blending one color or a plurality of colors, and the required color can be selected according to the actual requirement.
Furthermore, a small amount of carbon black is selected in the raw materials, and the carbon black can be used as a wave absorbing agent, can quickly absorb microwaves, locally generates high temperature, and promotes the polymerization and solidification of the silicone-acrylate emulsion.
Furthermore, the coupling agent and the carbon black are firstly mixed, and the carbon black can be uniformly distributed in the silicone-acrylate emulsion and is used for ensuring the uniform curing of the soft porcelain material in the curing process.
Furthermore, the film forming agent is added into the raw materials, and the film forming agent is organic resin and comprises one or more of acrylic resin, epoxy resin, alkyd resin, polyurethane resin, organic silicon resin and organic fluororesin.
One or two of acrylic resin, silicone resin and organic fluorine resin are preferable.
When the film forming agent is used for curing the soft porcelain flexible facing material, a certain whole or local film can be formed on the surface of the soft porcelain, so that the waterproof effect is achieved.
In some embodiments, the present disclosure also provides a method for preparing a super-hydrophobic soft porcelain flexible finishing material, including the following steps:
1. blending a coupling agent and carbon black to obtain a composition of the carbon black and the coupling agent;
2. and (3) adding the composition of the carbon black and the coupling agent in the step (1) into the silicone-acrylic emulsion, simultaneously adding the film-forming agent, the inorganic pigment and the balance of the coupling agent, and uniformly stirring to obtain a mixed emulsion.
3. Weighing cement and quartz sand according to the weight parts, adding the cement and the quartz sand into a kneading machine, and uniformly mixing to obtain mixed powder;
4. and (3) adding the mixed emulsion obtained in the step (2) into the mixed powder obtained in the step (3), adding water, fully stirring to obtain slurry, and injecting the slurry into a mold.
5. And (3) feeding the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing.
Wherein the mass ratio of the coupling agent to the carbon black in the step 1 is 1: 2-3.
According to the method, the coupling agent is firstly mixed with the carbon black to modify the carbon black, so that the carbon black is ensured to have organic components on the surface, and when the carbon black is added into the raw material, the uniform distribution of the carbon black can be ensured, and the uniform heating of the interior of the merging emulsion can be ensured in the subsequent microwave heating process.
Furthermore, in the step 2, in order to improve the dispersibility of the inorganic pigment and the film-forming agent, the residual silane coupling agent is added into the system, which is beneficial to the dispersion of the inorganic pigment and the film-forming agent and improves the quality of the soft porcelain flexible finishing material.
Further, in the step 5, microwave multi-stage curing is used, and the curing temperature in the microwave curing line is 80-150 ℃.
Further, the microwave treatment in the microwave curing line is multi-section microwave treatment;
the time of each microwave treatment is 10-60 seconds; preferably 10-30 seconds.
Further, the interval between each microwave treatment is 10 to 30 seconds, preferably 20 to 30 seconds.
For example, in the microwave treatment, the microwave treatment is first carried out for 10 to 60 seconds, and after stopping for 10 to 30 seconds, the microwave treatment is continued for 10 to 60 seconds and then stopped for 10 to 30 seconds, thereby carrying out the reciprocating treatment.
Further, the number of microwave treatments exceeds 10, preferably 15.
During the microwave treatment, the carbon black in the raw material slurry can preferentially absorb microwaves and locally generate high temperature to promote the polymerization and solidification of the silicone-acrylate emulsion.
On the other hand, due to the interval multi-section microwave heating, the temperature change near the carbon black in the slurry system is not uniformly increased but shows fluctuation type change, the surface layer of the soft porcelain flexible facing material forms a certain fine micro-nano coarse structure layer due to the fluctuation type change, and the micro-nano coarse structure layer has similar lotus effect and can enable the soft porcelain flexible facing brick to have excellent hydrophobic performance.
Furthermore, a film forming agent is also present in the slurry system, the moisture in the raw material slurry is quickly volatilized under the condition of 80-150 ℃, and the silicone-acrylic emulsion is solidified, wherein the film forming agent can be partially presented on the surface of the soft ceramic flexible facing brick due to an interface effect to form a water blocking film, so that the hydrophobicity of the soft ceramic flexible facing brick is improved.
In some embodiments, the present disclosure provides a method for preparing a super-hydrophobic soft porcelain flexible finishing material, where the method includes the following steps:
1. blending a certain amount of coupling agent and 1-3 parts of carbon black to obtain a composition of the carbon black and the coupling agent, wherein the mass ratio of the coupling agent to the carbon black is 1: 2-3;
2. adding the composition of the carbon black and the coupling agent in the step 1 into 20-30 parts of silicone-acrylic emulsion, simultaneously adding 2-5 parts of film-forming agent, 1-3 parts of inorganic pigment and the balance of the coupling agent, and uniformly stirring to obtain mixed emulsion;
wherein the total amount of the coupling agent in the step 1 and the step 2 is 1-3 parts.
3. Weighing 5-30 parts of cement and 25-35 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
4. adding the mixed emulsion obtained in the step 2 into the mixed powder obtained in the step 3, adding 5-10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
5. sending the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing;
wherein the microwave treatment in the microwave curing line is multi-stage microwave treatment;
the time of each microwave treatment is 10-60 seconds; preferably 10-30 seconds;
further, the interval of each microwave treatment is 10-30 seconds, preferably 20-30 seconds;
for example, in the microwave treatment, the microwave treatment is firstly carried out for 10 to 60 seconds, and after the microwave treatment is stopped for 10 to 30 seconds, the microwave treatment is continuously carried out for 10 to 60 seconds, and the microwave treatment is stopped for 10 to 30 seconds, so that the reciprocating treatment is carried out;
further, the number of microwave treatments exceeds 10, preferably 15.
Compared with the prior art, the soft porcelain flexible facing material has the advantages that the prepared soft porcelain flexible facing material has excellent hydrophobic property and good mechanical property. According to the scheme, the carbon black of the wave absorbing agent is added into the soft ceramic flexible facing material for the first time, and the carbon black absorbs microwaves, so that the temperature in the soft ceramic flexible facing material slurry generates local difference, the soft ceramic is further cured, the apparent form of the soft ceramic is different, the material has a certain lotus leaf effect, and the hydrophobic performance is achieved. Furthermore, the raw materials are also provided with a film forming agent, and the film forming agent and the curing process are combined, so that the soft porcelain flexible finishing material has better water repellency and hydrophobicity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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 embodiment specifically provides a soft porcelain flexible facing material and a preparation method thereof, wherein the preparation method comprises the steps of pretreating raw materials, namely blending a certain amount of coupling agent and 1-3 parts of carbon black to obtain a composition of the carbon black and the coupling agent, wherein the mass ratio of the coupling agent to the carbon black is 1: 2-3;
the carbon black material is a good wave absorbing agent, so that microwaves can be obviously absorbed in the microwave treatment process, the microenvironment around the carbon black is rapidly heated, the curing speed difference of the silicone-acrylic emulsion in the system is promoted, the curing effect of difference is formed, the cured silicone-acrylic emulsion utilizes the surface effect and other effects, the curing difference is further increased, the surface of the rough surface with the micro-nano structure is shown apparently, and the hydrophobicity of the soft porcelain flexible finishing material is improved by utilizing the structure of the micro-nano rough surface.
In order to improve the hydrophobicity of the soft porcelain flexible facing material, the basic one of the soft porcelain flexible facing material is to ensure the apparent structure of the soft facing material, the apparent structure is formed by the difference of local temperature, and the difference of the local temperature is related to the distribution of the wave absorbing agent carbon black.
In another embodiment, the soft porcelain flexible facing material and the preparation method thereof are provided, and the preparation method comprises the step of adding the composition of the carbon black and the coupling agent into the silicone-acrylic emulsion for dispersion treatment.
Based on the foregoing analysis, it can be known that a differentiated temperature change is required to obtain the lotus leaf effect, that is, the wave-absorbing agent carbon black needs to have good dispersibility, and a good hydrophobic effect can be obtained only when the carbon black reaches a certain dispersibility.
In another embodiment, a soft porcelain flexible facing material and a method for preparing the same are provided, wherein the method for preparing the soft porcelain flexible facing material comprises the step of performing microwave treatment on a mold injected with slurry.
The microwave treatment can quickly cause the solidification of the slurry and improve the solidification effect.
In another embodiment, a soft porcelain flexible facing material and a preparation method thereof are provided, wherein the preparation method comprises the steps of feeding a mould injected with slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing;
the purpose of multistage microwave curing is to utilize the wave-absorbing property of carbon black, so that the temperature of the microenvironment around the carbon black is changed differentially, the formation of the surface structure of the micro-nano structure is promoted, and the hydrophobicity of the soft porcelain flexible finishing material is improved.
Specifically, the present disclosure provides example 1, specifically operating as follows:
1. blending 1 part of coupling agent and 2 parts of carbon black to obtain a composition of the carbon black and the coupling agent, wherein the mass ratio of the coupling agent to the carbon black is 1: 2;
2. adding the composition of the carbon black and the coupling agent in the step 1 into 25 parts of silicone-acrylic emulsion, simultaneously adding 3 parts of film forming agent, 2 parts of inorganic pigment and the balance of 2 parts of coupling agent, and uniformly stirring to obtain mixed emulsion;
3. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
4. adding the mixed emulsion obtained in the step (2) into the mixed powder obtained in the step (3), adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
5. sending the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing;
the time of each microwave treatment is 40 seconds;
the interval of each microwave treatment is 30 seconds;
in the microwave treatment, firstly, the microwave treatment is carried out for 10-60 seconds, and after the microwave treatment is stopped for 10-30 seconds, the microwave treatment is continuously carried out for 10-60 seconds, and the microwave treatment is stopped for 10-30 seconds, so that the reciprocating treatment is carried out;
the microwave treatment times exceed 15 times;
the temperature of the microwave treatment stage was controlled to 90 ℃.
6. And after the treatment, putting the mixture into an oven at 80 ℃ for drying and further curing.
The present disclosure provides example 2, with the following specific operations:
1. blending 1 part of coupling agent and 2 parts of carbon black to obtain a composition of the carbon black and the coupling agent, wherein the mass ratio of the coupling agent to the carbon black is 1: 2;
2. adding the composition of the carbon black and the coupling agent in the step 1 into 25 parts of silicone-acrylic emulsion, simultaneously adding 2 parts of inorganic pigment and the balance of 2 parts of coupling agent, and uniformly stirring to obtain mixed emulsion;
3. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
4. adding the mixed emulsion obtained in the step (2) into the mixed powder obtained in the step (3), adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
5. sending the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing;
the time of each microwave treatment is 40 seconds;
the interval of each microwave treatment is 30 seconds;
in the microwave treatment, firstly, the microwave treatment is carried out for 10-60 seconds, and after the microwave treatment is stopped for 10-30 seconds, the microwave treatment is continuously carried out for 10-60 seconds, and the microwave treatment is stopped for 10-30 seconds, so that the reciprocating treatment is carried out;
the microwave treatment times exceed 15 times;
the temperature of the microwave treatment stage was controlled to 90 ℃.
6. And after the treatment, putting the mixture into an oven at 80 ℃ for drying and further curing.
The present disclosure provides example 3, specifically operating as follows:
1. adding 3 parts of carbon black into 25 parts of silicone-acrylic emulsion, simultaneously adding 3 parts of film-forming agent, 2 parts of inorganic pigment and 3 parts of coupling agent, and uniformly stirring to obtain mixed emulsion;
2. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
3. adding the mixed emulsion obtained in the step (2) into the mixed powder obtained in the step (3), adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
4. sending the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing;
the time of each microwave treatment is 40 seconds;
the interval of each microwave treatment is 30 seconds;
in the microwave treatment, firstly, the microwave treatment is carried out for 10-60 seconds, and after the microwave treatment is stopped for 10-30 seconds, the microwave treatment is continuously carried out for 10-60 seconds, and the microwave treatment is stopped for 10-30 seconds, so that the reciprocating treatment is carried out;
the microwave treatment times exceed 15 times;
the temperature of the microwave treatment stage was controlled to 90 ℃.
5. And after the treatment, putting the mixture into an oven at 80 ℃ for drying and further curing.
The present disclosure provides example 4, with the following specific operations:
1. blending 1 part of coupling agent and 2 parts of carbon black to obtain a composition of the carbon black and the coupling agent, wherein the mass ratio of the coupling agent to the carbon black is 1: 2;
2. adding the composition of the carbon black and the coupling agent in the step 1 into 25 parts of silicone-acrylic emulsion, simultaneously adding 3 parts of film forming agent, 2 parts of inorganic pigment and the balance of 2 parts of coupling agent, and uniformly stirring to obtain mixed emulsion;
3. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
4. adding the mixed emulsion obtained in the step (2) into the mixed powder obtained in the step (3), adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
5. and (4) putting the mould in the step (4) into an oven at 80 ℃ for drying and further curing.
The present disclosure provides example 5, specifically operating as follows:
1. adding 3 parts of film forming agent and 3 parts of silane coupling agent into 25 parts of silicone-acrylate emulsion, and uniformly stirring to obtain mixed emulsion;
2. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
3. adding the mixed emulsion obtained in the step 1 into the mixed powder obtained in the step 2, adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
4. sending the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing;
the time of each microwave treatment is 40 seconds;
the interval of each microwave treatment is 30 seconds;
in the microwave treatment, firstly, the microwave treatment is carried out for 10-60 seconds, and after the microwave treatment is stopped for 10-30 seconds, the microwave treatment is continuously carried out for 10-60 seconds, and the microwave treatment is stopped for 10-30 seconds, so that the reciprocating treatment is carried out;
the microwave treatment times exceed 15 times;
the temperature of the microwave treatment stage was controlled to 90 ℃.
5. And after the treatment, putting the mixture into an oven at 80 ℃ for drying and further curing.
The present disclosure provides example 6, specifically operating as follows:
1. adding 3 parts of silane coupling agent into 25 parts of silicone-acrylate emulsion, and uniformly stirring to obtain mixed emulsion;
2. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
3. adding the mixed emulsion obtained in the step 1 into the mixed powder obtained in the step 2, adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
4. sending the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-section microwave curing;
the time of each microwave treatment is 40 seconds;
the interval of each microwave treatment is 30 seconds;
in the microwave treatment, firstly, the microwave treatment is carried out for 10-60 seconds, and after the microwave treatment is stopped for 10-30 seconds, the microwave treatment is continuously carried out for 10-60 seconds, and the microwave treatment is stopped for 10-30 seconds, so that the reciprocating treatment is carried out;
the microwave treatment times exceed 15 times;
the temperature of the microwave treatment stage was controlled to 90 ℃.
5. And after the treatment, putting the mixture into an oven at 80 ℃ for drying and further curing.
The present disclosure provides example 7, with the following specific operations:
1. blending 1 part of coupling agent and 2 parts of carbon black to obtain a composition of the carbon black and the coupling agent, wherein the mass ratio of the coupling agent to the carbon black is 1: 2;
2. adding the composition of the carbon black and the coupling agent in the step 1 into 25 parts of silicone-acrylic emulsion, simultaneously adding 3 parts of film forming agent, 2 parts of inorganic pigment and the balance of 2 parts of coupling agent, and uniformly stirring to obtain mixed emulsion;
3. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
4. adding the mixed emulsion obtained in the step (2) into the mixed powder obtained in the step (3), adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
5. sending the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is a section of microwave curing;
the time of each microwave treatment is 10 min.
6. And after the treatment, putting the mixture into an oven at 80 ℃ for drying and further curing.
The present disclosure provides embodiment 8, specifically operating as follows:
1. adding 2 parts of inorganic pigment and 3 parts of coupling agent into 25 parts of silicone-acrylate emulsion, and uniformly stirring to obtain mixed emulsion;
2. weighing 15 parts of cement and 25 parts of quartz sand by weight, adding into a kneading machine, and uniformly mixing to obtain mixed powder;
3. adding the mixed emulsion obtained in the step 1 into the mixed powder obtained in the step 2, adding 10 parts of water, fully stirring to obtain slurry, and injecting the slurry into a mold;
4. and (3) placing the mould injected with the slurry into a drying chamber for curing treatment, specifically, drying and curing in an oven with the curing temperature of 80 ℃.
And (3) testing the mechanical properties of the soft porcelain material obtained in the embodiment, and testing the tensile strength, the elongation at break and the hydrophobicity by using a tensile strength tester.
Wherein the hydrophobicity test adds liquid drops to the surface of the soft porcelain and observes the distribution state of the liquid drops
The specific results are as follows:
from the test results, we found that the addition of carbon black and a film-forming agent, particularly a film-forming agent, can improve the hydrophobicity of the soft porcelain material to some extent. The hydrophobic property of the wave absorbing agent carbon black can be improved by microwave treatment, and the microwave treatment is matched with the wave absorbing agent to mainly change the apparent structure of the soft porcelain so as to achieve the effect of improving the hydrophobic property.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (7)
1. The super-hydrophobic soft porcelain flexible facing material is characterized in that raw materials of the soft porcelain flexible facing material comprise 20-30 parts of silicone-acrylic emulsion, 1-3 parts of inorganic pigment, 5-30 parts of cement, 25-35 parts of quartz sand, 1-3 parts of coupling agent, 2-5 parts of film forming agent, 1-3 parts of carbon black and 2-15 parts of water.
2. The super-hydrophobic soft porcelain flexible finishing material as claimed in claim 1, wherein the coupling agent is a silane coupling agent KH550 or a silane coupling agent KH 560.
3. A preparation method of a super-hydrophobic soft porcelain flexible facing material is characterized by comprising the following steps:
s1, blending the coupling agent and the carbon black to obtain a composition of the carbon black and the coupling agent;
s2, adding the composition of the carbon black and the coupling agent in the step 1 into the silicone-acrylic emulsion, simultaneously adding the film-forming agent, the inorganic pigment and the balance of the coupling agent, and uniformly stirring to obtain a mixed emulsion;
s3, weighing cement and quartz sand according to the parts by weight, adding the cement and the quartz sand into a kneading machine, and uniformly mixing to obtain mixed powder;
s4, adding the mixed emulsion obtained in the step 2 into the mixed powder obtained in the step 3, adding water, fully stirring to obtain slurry, and injecting the slurry into a mold;
and S5, feeding the mould injected with the slurry into a microwave heating curing line for curing, wherein the microwave heating is multi-stage microwave curing.
4. A method for preparing the super-hydrophobic soft porcelain flexible finishing material according to claim 3,
wherein the mass ratio of the coupling agent to the carbon black in the step S1 is 1: 2-3.
5. The method for preparing the super-hydrophobic soft porcelain flexible finishing material as claimed in claim 3, wherein in the step S5, microwave multi-stage curing is used, and the curing temperature in the microwave curing is 80-150 ℃;
the time of each microwave treatment is 10-60 seconds;
the interval of each microwave treatment is 10-30 seconds.
6. A method for preparing a soft porcelain finishing material with super-hydrophobicity according to claim 5, characterized in that the number of times of microwave treatment is more than 10 times, preferably more than 15 times.
7. The method for preparing the super-hydrophobic soft porcelain flexible finishing material as claimed in claim 5, wherein the mass ratio of the coupling agent to the carbon black in the step S1 is 1: 2-3.
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| CN202111613485.8A Active CN114292060B (en) | 2021-12-27 | 2021-12-27 | Super-hydrophobic soft porcelain flexible facing material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06279076A (en) * | 1993-02-19 | 1994-10-04 | Takenaka Komuten Co Ltd | Production of calcareous composition |
| CN108863231A (en) * | 2018-07-26 | 2018-11-23 | 万卓（武汉）新材料有限公司 | A kind of waterproof and breathable flexible clay facing tile and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06279076A (en) * | 1993-02-19 | 1994-10-04 | Takenaka Komuten Co Ltd | Production of calcareous composition |
| CN108863231A (en) * | 2018-07-26 | 2018-11-23 | 万卓（武汉）新材料有限公司 | A kind of waterproof and breathable flexible clay facing tile and preparation method thereof |
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| CN114292060B (en) | 2023-01-10 |
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