Vol. 7, No 1, 2009 pp. 61 - 67
DOI 10.2298/FUPCT0901061T
UDC 678.744.7

DECOMPOSITION OF BIODEGRADABLE FILMS DEVELOPED ON THE BASIS OF
POLYVINIL ALCOHOL IN THE NATURAL ENVIRONMENT
O.A. Timofiychuk1, T.I. Prudnicova1, D.O. Mishurov2, V.L. Avramenko2, R.G. Shevcova3
1Department of Mycology and Phytoimmunology, V.N. Karazin Kharkiv National University, Ukraine
2Department of Thermoplastic, National Technical University, Kharkov Polytechnical Institute
3Department of Inorganic Chemistry, Belgorod Shukhov State Technological University, Russia

Abstract. The use of polymeric pack has made for many important problems. Biodegradable plastics may provide solutions to global environmental problems. The aim of this study is to examine the utilization possibilities in natural environment of biodegradable films, which was developed with polyvinyl alcohol and organic filler materials (amylum and cellulose). The films stability against the filamentous fungus was analyzed, the soil type with optimal conditions to the biodegradation of polymers was determined; the mold fungi were separated from biodegradable films and were identified to a genus.
Key words:  polyvinyl alcohol (PVA), organic filler materials, biodegradable films (BF), sodium-carboxymethylcellulose (Na-CMC), amylum

BIORAZGRADNJA FILMOVA NA BAZI POLIVINIL ALKOHOLA U ZIVOTNOJ SREDINI
Upotreba ambalaze na bazi polimernih materijala je izazvala veliki broj ozbiljnih ekoloskih problema. Biorazgradiva plastika moze da predstavlja resenje ovog globalnog problem zagadenja zivotne sredine. Istrazivanja preduzeta u ovom radu su bila usmerena ka razjasnjavanju sudbine biorazgradivih filmova (tankih slojeva), na bazi polivinil alkohola i skroba i celuloze kao organskih punilaca, u zivotnoj sredini. Utvrdena je stabilnost filmova ka dejstvu filamentnih gljivica, zatim, optimalni uslovi koji se odnose na tip zemljista gde se vrsi biorazgradnja pomenutih polimera, kao i izvrsena bioloska determinacija, do nivoa roda, gljivica koje su izolovane sa filmova u procesu razlaganja.