CN111517829A - Anti-skid antibacterial ceramic tile and preparation method thereof - Google Patents

Abstract

The invention discloses a method for preparing anti-skid and antibacterial ceramic tiles, which comprises the following process steps: 1) spraying glue on the surface of a ceramic tile blank, wherein the glue is composed of a glue base material and nano-feldspar particles to form a glue coating; 2) ) Spray the photocatalyst hollow ceramic microbeads evenly on the glue coating, and remove the excess photocatalyst hollow ceramic microbeads by a dust collector to form an antibacterial coating; 3) Enter the firing kiln for high temperature firing, and after post-treatment, the finished product is obtained . By adjusting the preparation process and its important process parameters, the invention prepares environment-friendly anti-slip anti-bacterial ceramic tiles without special equipment or special anti-bacterial liquid and corrosive anti-skid liquid, which has both excellent anti-bacterial and anti-slip properties. And it has the characteristics of low thermal conductivity, which effectively improves the somatosensory comfort of the ceramic tile surface. The invention also discloses an antibacterial and antiskid ceramic tile, the surface of which has excellent antibacterial and antiskid properties, and at the same time, the thermal conductivity is low and the body feels comfortable.

Description

A kind of anti-slip antibacterial ceramic tile and preparation method thereof

technical field

The invention relates to the field of building materials, in particular to a ceramic brick and a preparation method thereof.

Background technique

Ceramic building materials are widely used in the decoration of various places. They have the characteristics of waterproofing, so they are also widely used as bathroom floor tiles. Because the bathroom has high requirements on the slip resistance of floor tiles, bathroom tiles generally use antique tiles with good anti-slip performance, but the anti-slip of antique tiles mainly depends on the rough surface of ceramic tiles. However, the rough surface of ceramic tiles will cause the following problems: the first surface is easy to vacuum, which is difficult to clean; the second surface is rough and easy to grow bacteria, which affects people's health; third, the surface treatment process of the existing antibacterial and anti-skid ceramic tiles is relatively complicated , often requires special equipment or special antibacterial liquid, corrosive anti-skid liquid, resulting in low production efficiency, high production cost, low environmental protection and other disadvantages. In addition, the thermal conductivity of the existing ceramic tiles is about 2W/mK, and the heat will be quickly dissipated after the feet directly contact the floor tiles, resulting in a cold body and poor comfort. Therefore, how to effectively reduce the thermal conductivity of bathroom floor tiles, improve the comfort of the feet in contact with the floor tiles, and have both excellent antibacterial and anti-skid performance has become a major problem that the industry needs to solve urgently.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a kind of anti-slip antibacterial ceramic tile and its preparation method in view of the deficiencies of the above-mentioned prior art.

The technical scheme adopted in the present invention is: a preparation method of anti-skid and antibacterial ceramic tiles, which comprises the following process steps:

1) spraying glue on the surface of the ceramic tile, the glue is composed of glue base material and nano-feldspar particles to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads on the glue coating, and after removing the excess photocatalyst hollow ceramic microbeads by the vacuuming device, an antibacterial coating is formed;

3) Enter the firing kiln for high temperature firing, and after post-processing, the finished product is obtained.

Specifically, the present invention introduces the photocatalyst hollow ceramic microbeads. The first is to use its particle characteristics to improve the surface roughness of the brick, so that the ceramic brick has an anti-slip function; the second is to use the photocatalytic material attached to its surface to give the ceramic brick antibacterial and self-cleaning function, thereby improving the antibacterial and antifouling properties of ceramic tiles; the third is to use its hollow ceramic microbeads with high temperature resistance, effectively reducing the thermal conductivity of the ceramic tile surface, thereby reducing the foot and ceramic tiles. The speed of heat transfer when the surface is in contact, greatly improves the comfort of the foot. Meanwhile, the glue base material described in step 1) of the present invention is common, commercially available ceramic inkjet printing glue, which is physically mixed with the nano-feldspar particles to form the special glue used in the present invention. Among them, the glue base material is used for the adsorption and adhesion of the photocatalyst hollow ceramic microspheres in the early stage of high-temperature firing of ceramic bricks. At this time, the molten nano-feldspar particles play the role of adhesion and adsorption to the photocatalyst hollow ceramic beads, so as to prevent the photocatalyst hollow ceramic beads from being blown off by the airflow in the kiln during the high temperature firing process, so as to ensure that the hollow ceramic beads can be The products fired at high temperature can still effectively reduce the thermal conductivity of the surface and have excellent antibacterial, antiskid and antifouling properties.

As a further improvement of the above scheme, the addition amount of the nano-feldspar particles in step 1) is 1-3% of the total weight of the glue. Specifically, in order to uniformly disperse the nano-feldspar particles in the glue, the problem of dispersibility needs to be considered, and too much or too little nano-feldspar particles is not conducive to the adhesion and adsorption of the photocatalyst hollow ceramic microbeads during the later firing process. and the anti-slip and antibacterial effect of the product after molding, so the limitation of the addition amount of the nano-feldspar particles in the present invention is conducive to adapting the preparation process of the present invention to further improve the comprehensive performance of the product.

As a further improvement of the above scheme, the particle size of the photocatalyst hollow ceramic microbeads in step 2) is 0.5-1.5 mm. Specifically, the particle size of the photocatalyst hollow ceramic microbeads of the present invention is directly related to the various surface properties of the final prepared ceramic tile product, so the appropriate particle size definition is an important factor in further improving the final performance of the product.

As a further improvement of the above scheme, the application amount of the sprayed photocatalyst hollow ceramic microbeads in step 2) is 5-50 g/m ³ . Specifically, if the application amount is insufficient, the ideal anti-slip and antibacterial effect cannot be obtained, and if the application amount is too large, raw materials will be wasted. Therefore, the present invention further limits the sandblasting application amount of the photocatalyst hollow ceramic microbeads to suit the preparation process.

As a further improvement of the above scheme, the photocatalyst hollow ceramic microbeads described in step 2) are nano-titania hollow ceramic microbeads.

As a further improvement of the above scheme, the firing temperature of the high-temperature firing described in step 3) is 1210 to 1230° C., which is the firing temperature of similar products of ceramic tiles, that is, the preparation method of the present invention does not need to calcine similar products of ceramic tiles. The firing temperature can be adjusted, and the firing process of the same kind of ceramic tiles can be used.

The ceramic tile brick blank described in step 1 of the present invention is a blank with decorative pattern texture, and the decorative pattern texture can be realized by glazing and inkjet printing or by other conventional ceramic tile decoration processes. The post-processing described in step 3) of the present invention is the post-processing process of conventional ceramic tile products such as cutting and edging.

The beneficial effects of the present invention are:

The invention introduces photocatalyst hollow ceramic microbeads by adjusting the preparation process and its important process parameters, and at the same time utilizes special glue added with nano-feldspar particles to achieve effective adsorption and adhesion to photocatalyst hollow ceramic microbeads, without the need for special equipment or special On the premise of antibacterial liquid and corrosive anti-skid liquid, environmental protection anti-slip anti-bacterial ceramic tiles are prepared, which have excellent anti-bacterial, anti-slip, anti-fouling properties, and have the characteristics of low thermal conductivity, which effectively improves the surface of ceramic tiles. Somatosensory comfort.

The antibacterial and anti-skid ceramic tile prepared by the invention forms a special antibacterial layer on the surface of the tile, which endows the surface of the ceramic tile with excellent antibacterial, anti-slip, and anti-fouling properties, as well as low thermal conductivity and comfortable body feeling.

Detailed ways

The present invention will be specifically described below with reference to the embodiments, so as to facilitate the understanding of the present invention by those skilled in the art. It is necessary to point out that the embodiments are only used to further illustrate the present invention, and should not be construed as limiting the scope of protection of the present invention. Those skilled in the art make non-essential improvements and The adjustment should still belong to the protection scope of the present invention. Meanwhile, the raw materials mentioned below are all commercially available products that are not described in detail; the process steps or preparation methods not mentioned in detail are the process steps or preparation methods known to those skilled in the art.

The photocatalyst hollow ceramic microbeads used in the following examples of the present invention are commodities purchased from Shanghai Huijing Sub-Nano New Materials Co., Ltd., and the glue base material is a ceramic inkjet printing glue commodity of Foshan Mindray Technology Co., Ltd. Feldspar particles are 1250 mesh feldspar particles crushed by a sand mill to nano-feldspar particles with a particle size of 10-100nm.

Example 1

A preparation method of anti-skid antibacterial ceramic tile, which comprises the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 97% of the glue base material and 3% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 0.5mm on the glue coating, and control the application amount to be 50g/m ³ , after removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Enter into the firing kiln to carry out high temperature firing, control firing temperature to be 1210 DEG C, and obtain the finished product of Example 1 through post-processing techniques such as cutting and edging.

Comparative Example 1

A preparation method of a ceramic tile, comprising the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and a surface glaze is applied to the surface of the ceramic brick brick, and the surface glaze is made of 97% of the common material by weight percentage of the raw materials. The ceramic tile is composed of transparent surface glaze glaze and 3% nano-feldspar particles with a particle size of 0.5mm to form a surface glaze coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads on the surface glaze coating, and control the application amount to be 50g/m ³ , and after removing the excess photocatalyst hollow ceramic microbeads by the vacuuming device, an antibacterial coating is formed;

3) Enter the firing kiln for high-temperature firing, control the firing temperature to be 1210°C, and obtain the finished product of Comparative Example 1 through post-processing processes such as cutting and edging.

Comparative Example 2

A preparation method of a ceramic tile, comprising the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and the glue base material is sprayed on the surface of the ceramic brick brick, and the glue base material is distributed on the brick surface in dots to form glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads on the glue coating, and control the application amount to be 50g/m ³ , and after removing the excess photocatalyst hollow ceramic microbeads by a vacuum device, an antibacterial coating is formed;

3) Into the firing kiln for high-temperature firing, the firing temperature is controlled to be 1210°C, and the finished product of Comparative Example 2 is obtained through post-processing processes such as cutting and edging.

Comparative Example 3

A preparation method of a ceramic tile, comprising the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 93% of the glue base material and 7% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 0.5mm on the glue coating, and control the application amount to be 50g/m ³ , after removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Into the firing kiln for high temperature firing, the firing temperature is controlled to be 1210°C, and the finished product of Comparative Example 3 is obtained through post-processing processes such as cutting and edging.

Comparative Example 4

A preparation method of a ceramic tile, comprising the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 97% of the glue base material and 3% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 0.5mm on the glue coating, and control the application amount to be 3g/m ³ . After removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Into the firing kiln for high temperature firing, the firing temperature is controlled to be 1210°C, and the finished product of Comparative Example 4 is obtained through post-processing processes such as cutting and edging.

Comparative Example 5

A preparation method of anti-skid antibacterial ceramic tile, which comprises the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 97% of the glue base material and 3% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 0.1 mm on the glue coating, and control the application amount to be 50 g/m ³ . After removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Enter the firing kiln for high temperature firing, control the firing temperature to be 1210°C, and obtain the finished product of Comparative Example 5 through post-processing processes such as cutting and edging.

Comparative Example 6

A preparation method of anti-skid antibacterial ceramic tile, which comprises the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 97% of the glue base material and 3% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 3mm on the glue coating, and control the application amount to be 50g/m ³ , and after removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Into the firing kiln for high temperature firing, the firing temperature is controlled to be 1210°C, and the finished product of Comparative Example 6 is obtained through post-processing processes such as cutting and edging.

Example 2

A preparation method of anti-skid antibacterial ceramic tile, which comprises the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 99% of the glue base material and 1% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 1.5mm on the glue coating, and control the application amount to be 50g/m ³ , and after removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) enter the firing kiln for high-temperature firing, control the firing temperature to be 1230° C., and obtain the finished product of Example 2 through post-processing techniques such as cutting and edging.

Example 3

A preparation method of anti-skid antibacterial ceramic tile, which comprises the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 98% of the glue base material and 2% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 1.0mm on the glue coating, and control the application amount to be 40g/m ³ , after removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Into the firing kiln for high-temperature firing, the firing temperature is controlled to be 1220°C, and the finished product of Example 3 is obtained through post-processing techniques such as cutting and edging.

Example 4

A preparation method of anti-skid antibacterial ceramic tile, which comprises the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 98% of the glue base material and 2% of nano-feldspar particles based on the weight percentage of the raw materials, to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 1.2mm on the glue coating, and control the application amount to be 35g/m ³ , and after removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Into the firing kiln to carry out high temperature firing, the firing temperature is controlled to be 1225°C, and the finished product of Example 4 is obtained through post-processing techniques such as cutting and edging.

Example 5

A preparation method of anti-skid antibacterial ceramic tile, which comprises the following process steps:

1) Glazing and inkjet printing are performed on the surface of the green ceramic tile to form a ceramic tile brick with a decorative pattern texture, and glue is sprayed on the surface of the ceramic brick brick, and the glue is distributed on the brick surface in dots, and the glue is pressed by pressing. 97.5% of the glue base material and 2.5% of the nano-feldspar particles are composed of 97.5% of the raw material weight percentage to form a glue coating;

2) Evenly spray the photocatalyst hollow ceramic microbeads with a particle size of 0.8mm on the glue coating, and control the application amount to be 5g/m ³ , and after removing the excess photocatalyst hollow ceramic microbeads by a dust collector, an antibacterial coating is formed;

3) Into the firing kiln for high temperature firing, the firing temperature is controlled to be 1220°C, and the finished product of Example 5 is obtained through post-processing techniques such as cutting and edging.

Example 6: Performance Test

The finished products obtained from Examples 1 to 5 and Comparative Examples 1 to 6 and commercially available common antibacterial ceramic tiles are respectively tested for relevant performance, and the results of each performance test are as follows:

Table 1 Relevant performance test standards and results

The above-mentioned embodiments are preferred embodiments of the present invention, and all processes similar to those of the present invention and equivalent changes made shall belong to the protection scope of the present invention.

Claims (7)

1. a preparation method of anti-skid antibacterial ceramic tile is characterized in that comprising the following processing steps: 1) spraying glue on the surface of the ceramic tile, the glue is composed of glue base material and nano-feldspar particles to form a glue coating; 2) Evenly spray the photocatalyst hollow ceramic microbeads on the glue coating, and after removing the excess photocatalyst hollow ceramic microbeads by the vacuuming device, an antibacterial coating is formed; 3) Enter the firing kiln for high temperature firing, and after post-processing, the finished product is obtained. 2 . The method for preparing an anti-skid and antibacterial ceramic tile according to claim 1 , wherein the addition amount of the nano-feldspar particles in step 1) is 1-3% of the total weight of the glue. 3 . 3 . The method for preparing an anti-skid and antibacterial ceramic tile according to claim 1 , wherein the particle size of the photocatalyst hollow ceramic microbeads in step 2) is 0.5-1.5 mm. 4 . 4 . The method for preparing a non-slip antibacterial ceramic tile according to claim 1 , wherein the amount of spraying photocatalyst hollow ceramic microbeads in step 2) is 5-50 g/m ³ . 5. The preparation method of a kind of anti-skid and antibacterial ceramic tile according to claim 1, characterized in that: the photocatalyst hollow ceramic microbeads described in step 2) are nano titanium dioxide hollow ceramic microbeads. 6 . The method for preparing an anti-skid and antibacterial ceramic tile according to claim 1 , wherein the firing temperature of the high-temperature firing in step 3) is 1210-1230° C. 7 . 7. A non-slip antibacterial ceramic tile prepared by the preparation method according to any one of claims 1 to 6.