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.
