ENVIRONMENTALLY SAFE PACKING MATERIAL BASED ON POLYLACTIDE Russian patent published in 2017 - IPC C08L101/16 C08L67/04 C08K3/34 D06M10/02 

FIELD: packaging industry.

SUBSTANCE: packing material based on polylactide is created by mixing polylactide with dispersed filler SiO₂ (aerosil) with a concentration of 1.9-2.1% by volume and a particle size of 12 nm. Mixing was carried out for 5 minutes at a temperature of 180°C. Further, the finished composition was placed in a hot press at a pressing temperature of 180°C and a pressing pressure of 15 MPa. The films were cooled for 1 min, then placed in a positive corona discharge field, charged at room temperature or at a temperature above the polylactide glass transition temperature for 5 min to a surface potential of 1.3-1.5 kV.

EFFECT: production of active packaging on the basis of biodegradable materials with increased electret effect.

4 dwg, 2 ex