| abstract |
The invention provides a polylactic acid-based environmental protection agricultural mulch film, comprising: a first outer layer, a first adhesive layer, a barrier layer, a second adhesive layer, and a second outer layer; the first adhesive layer is arranged on the first outer layer. between an outer layer and the barrier layer; the second adhesive layer is arranged between the barrier layer and the second outer layer. The film provided by the invention adopts polylactic acid-based copolymer as the adhesive layer to avoid the participation of highly toxic adhesive monomers and solvents to contaminate packaging products; the outer layer of the film is composed of polylactic acid copolymer, which has good mechanical properties, and The junction layer has good compatibility with the outer layer and the inner layer, and each layer is composed of a single polymer. effect. The invention has the advantages of simple process, easy preparation, light volume, easy handling, and no harm to the environment after use. The invention also provides a preparation method of polylactic acid-based environmental protection agricultural mulch film. |