Anti-static ceramic tile and manufacturing method thereof
An anti-static and ceramic tile technology, applied in the field of building ceramic materials, can solve the problems such as the inability to apply the ceramic tile production technology, the high cost of anti-static ceramic tiles, and difficulty in producing various colors, etc., and achieves easy engineering paving, low cost, and reduced The effect of construction difficulty
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[0027] An anti-static ceramic tile preparation method, which includes the following steps:
[0028] In the first step, the conductive material is ball milled, dried and granulated, and passed through a sieve of 30 mesh to 600 mesh to prepare a conductive powder;
[0029] In the second step, the conductive powder prepared in the first step is added to the ceramic blank in a certain proportion by a two-stage mixing process, and then placed in a mixer for mixing, and then homogenized through a multi-layer equal diameter screen. A conductive powder layer is uniformly coated on the surface of the ceramic blank particles;
[0030] In the third step, the mixed powder prepared in the second step is pressed into a shape, and fired to obtain an anti-static tile.
[0031] The specific implementation process is as follows:
Embodiment 1
[0033] (1) Preparation of conductive powder: 20% conductive zinc oxide, 16% Al 2 O 3 , 50% SiO 2 , 2.5%CaO, 3.5%MgO, 1.8%K 2 O, 2.2%Na 2 O, 1.6%ZnO and 2.4%BaO are ball milled, dried, granulated, and passed through a 100-mesh sieve to obtain the required conductive powder;
[0034] (2) The conductive powder and the ceramic blank are weighed and mixed according to the mass ratio of 10:90, then placed in a vertical mixer for mixing, and then homogenized by 6 layers of 30-mesh mesh sieve. The surface is evenly coated with a layer of conductive zinc oxide powder;
[0035] (3) The mixed powder obtained in step (2) is pressed into a shape and placed in a kiln for firing at a firing temperature of 1180°C and a firing time of 55 minutes.
[0036] After electrical performance testing, the surface resistivity of the product is 1.2×10 8 Ω·㎝, volume resistivity is 7.6×10 7 Ω.
Embodiment 2
[0038] (1) Preparation of conductive powder: 30% conductive tin oxide, 14% Al2O 3 , 45% Si O2 , 2.5%CaO, 3.5%MgO, 1.2%K 2 O, 2.8%Na 2 O, 0.5%ZnO and 0.5%BaO are ball milled, dried, granulated, and passed through a 100-mesh sieve to obtain the required conductive powder;
[0039] (2) The conductive powder and the ceramic blank are weighed and mixed according to the mass ratio of 15:85, then placed in a vertical mixer for mixing, and then homogenized by 6 layers of 30 mesh screens. The ceramic blank particles The surface is evenly coated with a layer of conductive tin oxide powder;
[0040] (3) The mixed powder obtained in step (2) is pressed into a shape and placed in a kiln for firing at a firing temperature of 1210°C and a firing time of 65 minutes.
[0041] After electrical performance testing, the surface resistivity of the product is 8.5×10 7 Ω·㎝, volume resistivity is 2.6×10 7 Ω.
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