Detail publikačního výsledku
Biodegradation of Modified Polyurethane Foams
OBRUČA, S.; MÁROVÁ, I.; ONDRUŠKA, V.; VOJTOVÁ, L.; DAVID, J.
Original Title
Biodegradation of Modified Polyurethane Foams
English Title
Biodegradation of Modified Polyurethane Foams
Type
Peer-reviewed article not indexed in WoS or Scopus
Original Abstract
Increased production of non-degradable polymer waste by modern industrial society is accompanied by necessity to solve problems with negative effects to environment. In agreement with recent trends to avoid the accumulation of environmental pollution new modified polyurethane (PUR) foams were synthesized. Biopolymer components (acetyl-, hydroxyethyl- and carboxymethyl cellulose, acetylated starch, glutein) were used as modifying agents. In this work biodegradability of modified PUR foams was tested using bacterial single strain (Arthrobacter globiformis), mixed bacterial culture (Thermophillus sp.) and selected moulds strains (Fusarium solani, Alternaria alternata). In a complex comparative study standard biodegradability tests in laboratory conditions, in model composting conditions and also in different natural environments were used. In both bacterial systems, PUR biodegradation mechanism probably includes two additional effects: the abiotic decomposition followed by consequent utilization of degradation products by the bacterial culture. Under natural and composting conditions biodegradation of PUR foams was strongly influenced by abiotic factors. The highest degree of biodegradation was found in PUR modified by acetylated starch and carboxymethyl cellulose. In mould tests the presence of PUR led to enhanced biomass production. Significant effect of cell adsorption on PUR surface was observed too. In conclusion, tested microorganisms can be used for biodegradation of modified polyurethane foams. The degree of biodegradation is strongly dependent on the type of modifying agent, type of microorganism as well as on many abiotic factors.
English abstract
Increased production of non-degradable polymer waste by modern industrial society is accompanied by necessity to solve problems with negative effects to environment. In agreement with recent trends to avoid the accumulation of environmental pollution new modified polyurethane (PUR) foams were synthesized. Biopolymer components (acetyl-, hydroxyethyl- and carboxymethyl cellulose, acetylated starch, glutein) were used as modifying agents. In this work biodegradability of modified PUR foams was tested using bacterial single strain (Arthrobacter globiformis), mixed bacterial culture (Thermophillus sp.) and selected moulds strains (Fusarium solani, Alternaria alternata). In a complex comparative study standard biodegradability tests in laboratory conditions, in model composting conditions and also in different natural environments were used. In both bacterial systems, PUR biodegradation mechanism probably includes two additional effects: the abiotic decomposition followed by consequent utilization of degradation products by the bacterial culture. Under natural and composting conditions biodegradation of PUR foams was strongly influenced by abiotic factors. The highest degree of biodegradation was found in PUR modified by acetylated starch and carboxymethyl cellulose. In mould tests the presence of PUR led to enhanced biomass production. Significant effect of cell adsorption on PUR surface was observed too. In conclusion, tested microorganisms can be used for biodegradation of modified polyurethane foams. The degree of biodegradation is strongly dependent on the type of modifying agent, type of microorganism as well as on many abiotic factors.
Keywords
biodegradation, polyurethane foams
Key words in English
biodegradation, polyurethane foams
Authors
OBRUČA, S.; MÁROVÁ, I.; ONDRUŠKA, V.; VOJTOVÁ, L.; DAVID, J.
RIV year
2010
Released
09.09.2008
Publisher
CSCH
Location
Brno
ISBN
1213-7103
Periodical
CHEMICKE LISTY
Volume
102
Number
15
State
Czech Republic
Pages from
1219
Pages to
1220
Pages count
2
Full text in the Digital Library
BibTex
@article{BUT48294,
author="Stanislav {Obruča} and Ivana {Márová} and Vladimír {Ondruška} and Lucy {Vojtová} and Jan {David}",
title="Biodegradation of Modified Polyurethane Foams",
journal="CHEMICKE LISTY",
year="2008",
volume="102",
number="15",
pages="1219--1220",
issn="0009-2770"
}