The invention relates to the technical field of materials, and discloses a modified antibacterial
ceramic material and a preparation method thereof.The
ceramic material is prepared from
potassium feldspar,
bentonite, a composite
antibacterial agent and the like through the processes of
grinding, mixing, aging, standing and defoaming. Wherein the composite
antibacterial agent is
copper-loaded porous
molybdenum oxide of which the surface is coated with a compact cross-linked
organic matter layer, pores of the porous
molybdenum oxide are blocked after the composite
antibacterial agent is coated with the compact cross-linked
organic matter layer,
copper in the pores can be protected from flowing out in the ball-milling and mixing process with other components, and in the subsequent high-temperature
ablation process of
ceramic, the
corrosion resistance of the composite antibacterial agent is greatly improved. According to the present invention, the
organic matter layer has the long-acting
antibacterial property, the tamarind gum molecular chain in the organic matter layer can be burnt off, such that the pores of the internal porous
molybdenum oxide can be exposed to a certain extent so as to continuously and slowly release the
copper in the pores, and the long-acting
antibacterial property is provided for the
glaze layer in cooperation with the photocatalytic
antibacterial effect of the
molybdenum oxide, and in addition, the
siloxane structure in the organic matter layer can form the silica
sol after high temperature
ablation so as to achieve the long-acting
antibacterial property; and the
glaze layer is endowed with good hydrophobic self-cleaning performance.