The present invention relates to a high melt index polylactic acid for melt blowing and its preparation method. The scheme includes: S00, preparing a PLA-based mixture in proportion; wherein, the PLA-based mixture comprises, in parts by weight: 88-96% polylactic acid, 1-5% polyol, 1-4% α-hydroxy acid, 1-4% 4-O-β-galactopyranosyl-D-glucuronic acid, and 1-5% plasticizer; S10, adding the PLA-based mixture to a twin-screw extruder after stirring; S20, extruding and pelletizing through the twin-screw extruder, drying and dehydrating, and then spray-melting to obtain high melt index polylactic acid. The present invention has the advantages of simple preparation, easy operation, low cost, and does not damage the biodegradability and environmental friendliness of polylactic acid.
Country Code: CN
Application Number: CN202311526116.4
