Biobased polymer composites for films and coatings/Biopolumeersed komposiidid kiledeks ja kateteks

Heterogeneous multicomponent biocomposites were elaborated on the basis of biodegradable polymer polyhydroxybutyrate through incorporation of additives of distinctive chemical nature (plasticizers, renewable fillers, compatibilizers). Plasticized polyhydroxybutyrate solutions were used as continuous matrices for the formation of films and paper coatings. Mechanical, thermal, hygroscopic, and barrier properties and biodegradation of the obtained materials were evaluated in terms of application as biodegradable packaging. Key words: biocomposites, polyhydroxybutyrate (PHB), starch, biodegradation, water vapour permeability, hygroscopic properties. Keemiliselt olemuselt eristuvate manuste (plastifikaatorid, taiteained, uhildajad) lisamisel biolagunevate polumeeride poluhudroksubuturaadile on valja tootatud heterogeenne multikomponentne biokomposiit. Plastifitseeritud poluhudroksubuturaadi lahuseid on kasutatud kui pidevat maatriksit kilena ja paberi katmisel. Saadud materjalidele on maaratud nende mehaanilised, termilised, hugroskoopsed, isoleerivad ja biolagunevad omadused, milliseid on hinnatud nende rakendatavuse jargi biolaguneva pakkematerjali valmistamisel.