Preparation method for ageing-resistant breathable gardening mulching film

The invention discloses a preparation method for an ageing-resistant breathable gardening mulching film. The preparation method comprises the following steps that firstly, polyethylene, polypropylene,polycarbonate, silicon dioxide, dioctyl phthalate and polyvinyl alcohol are stirred and mixed so as to obtain a mixed material I; diacetone acrylamide and aluminum oxide powder are added into the mixed material I, stirring and mixing are carried out, and then heating and stirring are carried out under the inert gas shielding condition so as to obtain a mixed material II; then a stabilizer and anantioxidant are added into the mixed material II, stirring and mixing are carried out, and then primary granulation is carried out by a double-screw extruder so as to obtain master batch; and finally,the master batch is subjected to film blowing through a film blowing machine so as to obtain the ageing-resistant breathable gardening mulching film. The mulching film obtained through the method provided by the invention has