Preparation method of highly transparent self-adhesive PBAT cling film

A preparation method of highly transparent self-adhesive PBAT cling film, comprising the following steps:

• S1, adding PBAT, ACR, glycerin, glycerin fatty acid ester to a mixer in proportion to mix, to obtain a uniformly mixed material;
• S2, extruding, stretching, cooling, and pelletizing the obtained uniformly mixed material in an extruder to obtain pellets for producing cling film;
• S3, adding the obtained pellets to the film blowing machine for extrusion, inflation, traction, cooling, and winding to obtain a highly transparent self-adhesive PBAT cling film;
• S4, rewinding the cling film obtained in S3 to prepare a small roll of highly transparent self-adhesive PBAT cling film;
• as the weight of the uniformly mixed material is 100%, the amount of each component in S1 by weight is:
• 88-94.5% of PBAT, 3-8% of ACR, 0.5-1% of glycerin, and 1-3% of glycerin fatty acid ester;
• the PBAT is a copolymer of butanediol adipate and butylene terephthalate, the ACR is a copolymer of acrylate, and the molecular weight of the ACR is 500-10000.