The present invention discloses a biodegradable polypropylene nonwoven material and its preparation method, belonging to the technical field of nonwoven materials. The preparation method comprises the following steps: preparing biodegradable masterbatch and melt spinning to form a web; the preparation of biodegradable masterbatch comprises the following steps: preparing starch solution, preparing modified attapulgite, compounding, preparing modified filler, and granulating; the granulation involves adding polylactic acid, degradation accelerator, modified filler, and pentaerythritol tetraisostearate to a mixer for pre-mixing, adding them to a mixer for mixing, and then using a twin-screw extruder for granulation to obtain biodegradable masterbatch; the biodegradable polypropylene nonwoven material prepared by the present invention has fast biodegradation speed, good mechanical properties and filtration performance, and the preparation method is simple, without the need to add additional new equipment.
Country Code: CN
Application Number: CN202311584363.X
