The invention provides a super-hydrophobic and antibacterial natural
cellulose fabric and a preparation method thereof. The super-hydrophobic and antibacterial natural
cellulose fabric specifically comprises a natural
cellulose fabric; a polydopamine super-hydrophobic
coating is adhered to the surface of the natural cellulose fabric; and an
ion chelating layer is adhered between the natural cellulose fabric and the polydopamine super-hydrophobic
coating. The method comprises the steps of adding the natural cellulose fabric into an alkali solution, performing heating and stirring, performing
water washing for multiple times, and performing airing for later use; and dissolving
dopamine in a
buffer solution, adding a Cu<2+> / H2O2 oxidation
system, performing rapid stirring for full
dissolution, immersing the fabric in a
dopamine solution, carrying out an oscillating reaction, performing multiple times of washing and
drying, immersing the fabric in alkali liquor, performing cleaning, performing treatment in the
dopamine solution again, taking out the fabric, and performing full washing and
drying. The method is easy to operate and mild in reaction condition; the alkali liquor can be recycled; the main raw materials are
environmentally friendly, easy to obtain and low in cost; industrial production is facilitated; and the prepared super-hydrophobic and antibacterial natural cellulose fabric has stable super-hydrophobic and antibacterial effects.