Abstract: A plasticized biodegradable polyester film formed from a biodegradable polyester in approximately 100 parts by weight, a plasticizer in from approximately 5-25 parts by weight, an inorganic filler in from approximately 0-150 parts by weight; and an antioxidant in from approximately 0.1-1 parts by weight. A method for preparing the plasticized biodegradable polyester film including drying the biodegradable polyester, drying the inorganic filler, mixing the biodegradable polyester, the plasticizer, the inorganic filler and the antioxidant, adding the mixed biodegradable polyester, plasticizer, inorganic filler and antioxidant into an extruder forming extruded plasticized biodegradable polyester material, drying the extruded plasticized biodegradable polyester material, and blowing the dried plasticized biodegradable polyester material as a master batch into film through a extruder to obtain the plasticized biodegradable polyester film.

Abstract: The present invention relates to a process for the synthesis of diacetyl epoxy glyceryl oleate, comprising the steps of: a). esterification of glycerol and oleic acid at 115-190° C. for 1.5-4.5 hours in the presence of an esterification catalyst to obtain glyceryl monooleate; b). acetylation of glyceryl monooleate and an acetylating reagent at 90-160° C. for 2-10 hours in the presence of an acetylation catalyst to obtain diacetyl glyceryl oleate; c). epoxidation of diacetyl glyceryl oleate and hydrogen peroxide at 60-80° C. for 2-4 hours in the presence of an epoxidation catalyst and a weak acid to obtain diacetyl epoxy glyceryl oleate. The prepared diacetyl epoxy glyceryl oleate can be used as plasticizer in plastics, with the advantages of improved stability, good flowability, and high compatibility with plastics.