阅读说明：本技术 一种防滑抗菌陶瓷砖及其制备方法 (Anti-skid antibacterial ceramic tile and preparation method thereof ) 是由 赵光岩 殷晓春 郑朝银 王妹妹 于 2020-05-27 设计创作，主要内容包括：本发明公开了一种防滑抗菌陶瓷砖的制备方法,其包括如下工艺步骤：1)在陶瓷砖砖坯表面喷涂胶水,所述胶水由胶水基料与纳米长石颗粒组成,形成胶水涂层；2)于胶水涂层上均匀喷洒光触媒空心陶瓷微珠,经吸尘装置去除多余光触媒空心陶瓷微珠后,形成抗菌涂层；3)进入烧成窑中进行高温烧成,经后处理,得成品。本发明通过调整制备工艺及其重要工艺参数,在无需特殊的设备或特殊的抗菌液、腐蚀性防滑液的前提下,制备得到环保的防滑抗菌陶瓷砖,其兼具优异的抗菌、防滑性能,并具有低导热系数的特点,有效地提高了陶瓷砖砖面的体感舒适性。本发明还公开了一种抗菌防滑陶瓷砖,其表面具有优异抗菌、防滑性能,同时导热系数低,体感舒适。(The invention discloses a preparation method of an anti-skid antibacterial ceramic tile, which comprises the following process steps: 1) spraying glue on the surface of a ceramic tile green body, wherein the glue consists of a glue base material and nano feldspar particles to form a glue coating; 2) uniformly spraying photocatalyst hollow ceramic microspheres on the glue coating, and removing excessive photocatalyst hollow ceramic microspheres by using a dust collection device to form an antibacterial coating; 3) and (5) entering a sintering kiln for high-temperature sintering, and performing post-treatment to obtain a finished product. According to the invention, by adjusting the preparation process and important process parameters thereof, the environment-friendly anti-slip antibacterial ceramic tile is prepared on the premise of not needing special equipment or special antibacterial liquid and corrosive anti-slip liquid, has the characteristics of excellent antibacterial and anti-slip properties and low heat conductivity coefficient, and effectively improves the body feeling comfort of the surface of the ceramic tile. The invention also discloses an antibacterial and antiskid ceramic tile, the surface of which has excellent antibacterial and antiskid properties, and meanwhile, the heat conductivity coefficient is low, and the body feeling is comfortable.)

1. The preparation method of the anti-skid antibacterial ceramic tile is characterized by comprising the following process steps:

1) spraying glue on the surface of a ceramic tile green body, wherein the glue consists of a glue base material and nano feldspar particles to form a glue coating;

2) uniformly spraying photocatalyst hollow ceramic microspheres on the glue coating, and removing excessive photocatalyst hollow ceramic microspheres by using a dust collection device to form an antibacterial coating;

3) and (5) entering a sintering kiln for high-temperature sintering, and performing post-treatment to obtain a finished product.

2. The method for preparing the anti-skid antibacterial ceramic tile according to claim 1, wherein the method comprises the following steps: the addition amount of the nano feldspar particles in the step 1) is 1-3% of the total weight of the glue.

3. The method for preparing the anti-skid antibacterial ceramic tile according to claim 1, wherein the method comprises the following steps: the grain size of the photocatalyst hollow ceramic microspheres in the step 2) is 0.5-1.5 mm.

4. According toThe method for preparing the anti-skid antibacterial ceramic tile as claimed in claim 1, wherein the method comprises the following steps: the application amount of the sprayed photocatalyst hollow ceramic microspheres in the step 2) is 5-50 g/m³。

5. The method for preparing the anti-skid antibacterial ceramic tile according to claim 1, wherein the method comprises the following steps: the photocatalyst hollow ceramic microspheres in the step 2) are nano titanium dioxide hollow ceramic microspheres.

6. The method for preparing the anti-skid antibacterial ceramic tile according to claim 1, wherein the method comprises the following steps: the sintering temperature of the high-temperature sintering in the step 3) is 1210-1230 ℃.

7. An anti-slip antibacterial ceramic tile prepared by the preparation method of any one of claims 1-6.

Technical Field

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

Background

The ceramic building material is widely applied to decoration of various places, has the characteristic of water resistance, and is widely applied to bathroom floor tiles. Because the bathroom has higher requirement on the anti-skid property of the floor tiles, the bathroom tiles are generally made of archaized tiles with good anti-skid property, but the anti-skid property of the archaized tiles is mainly realized by the rough surface of the ceramic tiles. However, the rough surface of the ceramic tile presents the following problems: the first surface is easy to absorb dust and difficult to clean; the second surface is rough and is easy to grow bacteria, so that the health of people is influenced; the third existing surface treatment process of the antibacterial anti-skid ceramic tile is complex, and often requires special equipment or special antibacterial liquid and corrosive anti-skid liquid, which causes the disadvantages of low production efficiency, high production cost, low environmental protection and the like. In addition, the heat conductivity coefficient of the existing ceramic tile is about 2W/mK, and heat can be quickly transferred after the foot is directly contacted with the floor tile, so that the body feeling is ice-cold, and the comfort is poor. Therefore, how to effectively reduce the heat conductivity coefficient of the bathroom floor tile, improve the comfort level of the contact between the foot and the floor tile, and have excellent antibacterial and anti-skid properties, which becomes a difficult problem to be solved urgently in the industry.

Disclosure of Invention

The invention aims to provide an anti-skid antibacterial ceramic tile and a preparation method thereof, aiming at the defects of the prior art.

The technical scheme adopted by the invention is as follows: a preparation method of an anti-skid antibacterial ceramic tile comprises the following process steps:

1) spraying glue on the surface of a ceramic tile green body, wherein the glue consists of a glue base material and nano feldspar particles to form a glue coating;

2) uniformly spraying photocatalyst hollow ceramic microspheres on the glue coating, and removing excessive photocatalyst hollow ceramic microspheres by using a dust collection device to form an antibacterial coating;

3) and (5) entering a sintering kiln for high-temperature sintering, and performing post-treatment to obtain a finished product.

Specifically, the photocatalyst hollow ceramic microspheres are introduced, so that firstly, the particle characteristics of the photocatalyst hollow ceramic microspheres are utilized to improve the surface roughness of a green brick, and the ceramic brick has an anti-skid function; secondly, the photocatalytic material attached to the surface of the ceramic tile is utilized to endow the ceramic tile with antibacterial and self-cleaning functions, so that the antibacterial and antifouling performances of the ceramic tile are improved; and thirdly, the hollow ceramic microspheres have the characteristic of high temperature resistance, so that the heat conductivity coefficient of the surface of the ceramic tile is effectively reduced, the heat transfer speed of the feet when the feet are in contact with the surface of the ceramic tile is reduced, and the comfortable sensation of the feet is greatly improved. Meanwhile, the glue base material in the step 1) is common and commercially available ceramic ink-jet printing glue, and the glue base material is physically mixed with the nano feldspar particles to form the special glue adopted in the invention. The glue base material is used for adsorbing and adhering the photocatalyst hollow ceramic microspheres in the early stage of high-temperature firing of the ceramic tile, along with the continuous rise of the temperature in the high-temperature firing process, organic matters in the glue base material lose viscosity due to carbonization, and at the moment, the fused nano feldspar particles have the functions of adhering and adsorbing the photocatalyst hollow ceramic microspheres, so that the photocatalyst hollow ceramic microspheres are prevented from being blown off by airflow in a kiln in the high-temperature firing process, and the product after high-temperature firing can still effectively reduce the heat conductivity coefficient of the surface and has excellent antibacterial, anti-slip and antifouling properties.

As a further improvement of the above scheme, the addition amount of the nano feldspar particles in the step 1) is 1-3% of the total weight of the glue. Specifically, the problem of dispersibility needs to be considered for uniformly dispersing the nano feldspar particles in the glue, and too many and too few nano feldspar particles are not beneficial to the adhesion and adsorption effect of the photocatalyst hollow ceramic microspheres in the later-stage sintering process and the anti-skid and antibacterial effect of the formed product, so that the limitation on the addition amount of the nano feldspar particles in the preparation process is beneficial to adapting to the preparation process disclosed by the invention so as to further improve the comprehensive performance of the product.

As a further improvement of the scheme, the particle size of the photocatalyst hollow ceramic microspheres in the step 2) is 0.5-1.5 mm. Specifically, the particle size of the photocatalyst hollow ceramic microspheres is directly related to various surface properties of the finally prepared ceramic tile product, so that the proper particle size limitation is an important factor in further improving the final properties of the product.

As a further improvement of the scheme, the application amount of the sprayed photocatalyst hollow ceramic microspheres in the step 2) is 5-50 g/m³. Specifically, the ideal antiskid antibacterial effect cannot be obtained due to insufficient application amount, and raw material waste is caused due to excessive application amount, so the sand blasting application amount of the photocatalyst hollow ceramic microspheres is increasedFurther defined to suit the manufacturing process.

As a further improvement of the scheme, the photocatalyst hollow ceramic microspheres in the step 2) are nano titanium dioxide hollow ceramic microspheres.

As a further improvement of the scheme, the firing temperature of the high-temperature firing in the step 3) is 1210-1230 ℃, which is the firing temperature of the similar products of the ceramic tiles, namely the preparation method of the invention does not need to adjust the firing temperature of the similar products of the ceramic tiles, and the existing firing process of the similar ceramic tiles can be adopted.

The ceramic tile adobe in the step 1 of the invention is a blank body with decorative pattern textures, and the decorative pattern textures can be realized by glazing and ink-jet printing or other conventional ceramic tile decoration processes. The post-treatment in the step 3) of the invention is a post-treatment process of conventional ceramic tile products such as cutting, edging and the like.

The invention has the beneficial effects that:

according to the invention, through adjusting the preparation process and important process parameters thereof, photocatalyst hollow ceramic microspheres are introduced, and meanwhile, the special glue added with nano feldspar particles is used for realizing effective adsorption and adhesion on the photocatalyst hollow ceramic microspheres, so that the environment-friendly anti-skid and antibacterial ceramic tile is prepared on the premise of no need of special equipment or special antibacterial liquid and corrosive anti-skid liquid, has excellent antibacterial, anti-skid and anti-fouling performances, has the characteristic of low heat conductivity coefficient, and effectively improves the somatosensory comfort of the surface of the ceramic tile.

The antibacterial and anti-skid ceramic tile prepared by the invention has the advantages that the special antibacterial layer is formed on the surface of the ceramic tile, the surface of the ceramic tile is endowed with excellent antibacterial, anti-skid and antifouling performances, and meanwhile, the thermal conductivity is low, and the body feeling is comfortable.

Detailed Description

The present invention is specifically described below with reference to examples in order to facilitate understanding of the present invention by those skilled in the art. It should be particularly noted that the examples are given solely for the purpose of illustration and are not to be construed as limitations on the scope of the invention, as non-essential improvements and modifications to the invention may occur to those skilled in the art, which fall within the scope of the invention as defined by the appended claims. Meanwhile, the raw materials mentioned below are not specified in detail and are all commercial products; the process steps or preparation methods not mentioned in detail are all process steps or preparation methods known to the person skilled in the art.

The photocatalyst hollow ceramic microspheres adopted in the following embodiments of the invention are a product from Shanghai Hui Jing sub-nanometer new material Co., Ltd, the glue base material is a ceramic ink-jet printing glue product from Mirui Scottocho Co., Ltd, and the nano feldspar particles are nano feldspar particles crushed into the particle size of 10-100 nm by a sand mill from 1250-mesh feldspar particles.