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PLASTIC FILM, PLASTIC BAG AND PREPARATION METHOD THEREFOR

The present invention provides a plastic film. The plastic film comprises thin film A and thin film B. The thin film A comprises at least one of polylactic acid, polyadipic acid/butylene terephthalate, and PBS polymer. The thin film B comprises a base layer and a coating layer. The coating layer adheres to and surrounds the base layer. The thin film A and the thin film B are laminated and molded. The coating material is polyvinylidene chloride, and the base material is a cellulose film; or the coating material is alumina, and the base material is polylactic acid. In the plastic film of the present invention, at least one of polylactic acid, polyadipic acid/butylene terephthalate, and PBS polymer is compounded with the cellulose film and polyvinylidene chloride into a plastic film. It is found that the plastic film has excellent waterproofing, air-tightness and mechanical properties, is biodegradable, and can be widely used in food packaging bags, and thus overcomes problems that the existing food packaging bags cannot be biodegraded, have poor water resistance and poor air-tightness, and mechanical properties need to be improved.

Publication date: 30/06/2022

Number: WO2022134790A1 (A1)

Applicant: GUANGZHOU ARGION ELECTRIC APPLIANCE CO LTD?[CN]

Inventor: QIU JIANHAN?[CN]; LIANG GUOQIANG?[CN] (1)

Espacenet (Worldwide)



      

This project has received funding from the Bio Based Industries Joint Undertaking under the European Union’s Horizon 2020 research and innovation programme under grant agreement No 837761.