| abstract |
The invention discloses a preparation method of a wrapping film and the prepared wrapping film, and relates to the technical field of packaging materials. A preparation method of a wrapping film, comprising the following steps: S1 modification: taking absolute ethanol, adding p-dimethyldibenzylidene sorbitol, then adding nano-β molecular sieve, stirring and drying to obtain a modified nucleating agent ; S2 admixture preparation: weigh the admixture raw materials, add the modified nucleating agent, mix evenly, and prepare the admixture; the admixture raw materials include the following raw materials: sodium carboxymethyl starch, sodium isethionate, alkane base amide phosphate, dispersant, plasticizer; S3 melt extrusion: take LLDPE particles, add admixtures, mix evenly, melt, extrude to obtain a melt; S4 film forming: send the melt to a casting machine Casting to form a film, winding to obtain a stretched film. The preparation method of the stretch film has the advantage of improving the tensile properties of the product. The stretch film has the advantage of good tensile properties. |