FIELD: chemistry.
SUBSTANCE: biodegradable film comprises PHA and PLA, wherein the PLA content is 1-95 wt %, where PHA is PHB or PHV or a copolymer or a mixture of PHB and PHV, wherein PHB is P(3HB-co-4HB) polymerized with 3HB and 4HB, and the molar percentage of 4HB is in a range of 5 to 85%. The biodegradable film further comprises a cellulose fibre. The invention also relates to biodegradable laminate that contains PBAT or PBS or a mixture thereof and the said biodegradable film.
EFFECT: laminates are characterized by a stronger biodegradability in a medium containing microorganisms and are characterized by a good shelf life and good strength, rapid adaptation, and flexibility.
20 cl, 12 tbl
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